diff --git a/app/code/Magento/AdminNotification/Test/Unit/Model/System/Message/CacheOutdatedTest.php b/app/code/Magento/AdminNotification/Test/Unit/Model/System/Message/CacheOutdatedTest.php
index 5d16f6b3cfbed..7ffc6a5f35370 100644
--- a/app/code/Magento/AdminNotification/Test/Unit/Model/System/Message/CacheOutdatedTest.php
+++ b/app/code/Magento/AdminNotification/Test/Unit/Model/System/Message/CacheOutdatedTest.php
@@ -62,6 +62,9 @@ public function testGetIdentity($expectedSum, $cacheTypes)
         $this->assertEquals($expectedSum, $this->_messageModel->getIdentity());
     }
 
+    /**
+     * @return array
+     */
     public function getIdentityDataProvider()
     {
         $cacheTypeMock1 = $this->getMock('stdClass', ['getCacheType']);
@@ -95,6 +98,9 @@ public function testIsDisplayed($expected, $allowed, $cacheTypes)
         $this->assertEquals($expected, $this->_messageModel->isDisplayed());
     }
 
+    /**
+     * @return array
+     */
     public function isDisplayedDataProvider()
     {
         $cacheTypesMock = $this->getMock('stdClass', ['getCacheType']);
diff --git a/app/code/Magento/AdminNotification/Test/Unit/Model/System/Message/Media/Synchronization/ErrorTest.php b/app/code/Magento/AdminNotification/Test/Unit/Model/System/Message/Media/Synchronization/ErrorTest.php
index bf7ac5e80da35..f37e32cc81e5d 100644
--- a/app/code/Magento/AdminNotification/Test/Unit/Model/System/Message/Media/Synchronization/ErrorTest.php
+++ b/app/code/Magento/AdminNotification/Test/Unit/Model/System/Message/Media/Synchronization/ErrorTest.php
@@ -69,6 +69,9 @@ public function testIsDisplayed($expectedFirstRun, $data)
         $this->assertEquals($expectedFirstRun, $model->isDisplayed());
     }
 
+    /**
+     * @return array
+     */
     public function isDisplayedDataProvider()
     {
         return [
diff --git a/app/code/Magento/AdminNotification/Test/Unit/Model/System/Message/SecurityTest.php b/app/code/Magento/AdminNotification/Test/Unit/Model/System/Message/SecurityTest.php
index eedc10bd94f46..959eb3b9e417d 100644
--- a/app/code/Magento/AdminNotification/Test/Unit/Model/System/Message/SecurityTest.php
+++ b/app/code/Magento/AdminNotification/Test/Unit/Model/System/Message/SecurityTest.php
@@ -79,6 +79,9 @@ public function testIsDisplayed($expectedResult, $cached, $response)
         $this->assertEquals($expectedResult, $this->_messageModel->isDisplayed());
     }
 
+    /**
+     * @return array
+     */
     public function isDisplayedDataProvider()
     {
         return [
diff --git a/app/code/Magento/AdvancedPricingImportExport/Test/Unit/Model/Import/AdvancedPricing/Validator/TierPriceTest.php b/app/code/Magento/AdvancedPricingImportExport/Test/Unit/Model/Import/AdvancedPricing/Validator/TierPriceTest.php
index 657ed7629f8e6..341fc57df6661 100644
--- a/app/code/Magento/AdvancedPricingImportExport/Test/Unit/Model/Import/AdvancedPricing/Validator/TierPriceTest.php
+++ b/app/code/Magento/AdvancedPricingImportExport/Test/Unit/Model/Import/AdvancedPricing/Validator/TierPriceTest.php
@@ -198,6 +198,9 @@ public function testIsValidAddMessagesCall($value, $hasEmptyColumns, $customerGr
         $this->tierPrice->isValid($value);
     }
 
+    /**
+     * @return array
+     */
     public function isValidResultFalseDataProvider()
     {
         return [
@@ -303,6 +306,9 @@ public function isValidResultFalseDataProvider()
         ];
     }
 
+    /**
+     * @return array
+     */
     public function isValidAddMessagesCallDataProvider()
     {
         return [
diff --git a/app/code/Magento/AdvancedPricingImportExport/Test/Unit/Model/Import/AdvancedPricing/Validator/WebsiteTest.php b/app/code/Magento/AdvancedPricingImportExport/Test/Unit/Model/Import/AdvancedPricing/Validator/WebsiteTest.php
index 3fa87961edc00..f3d19429ef3cf 100644
--- a/app/code/Magento/AdvancedPricingImportExport/Test/Unit/Model/Import/AdvancedPricing/Validator/WebsiteTest.php
+++ b/app/code/Magento/AdvancedPricingImportExport/Test/Unit/Model/Import/AdvancedPricing/Validator/WebsiteTest.php
@@ -127,6 +127,9 @@ public function testGetAllWebsitesValue()
         $this->assertEquals($expectedResult, $result);
     }
 
+    /**
+     * @return array
+     */
     public function isValidReturnDataProvider()
     {
         return [
diff --git a/app/code/Magento/AdvancedPricingImportExport/Test/Unit/Model/Import/AdvancedPricing/ValidatorTest.php b/app/code/Magento/AdvancedPricingImportExport/Test/Unit/Model/Import/AdvancedPricing/ValidatorTest.php
index 8c19aa20da0a6..b440ffd8dc4fa 100644
--- a/app/code/Magento/AdvancedPricingImportExport/Test/Unit/Model/Import/AdvancedPricing/ValidatorTest.php
+++ b/app/code/Magento/AdvancedPricingImportExport/Test/Unit/Model/Import/AdvancedPricing/ValidatorTest.php
@@ -76,6 +76,9 @@ public function testInit()
         $this->validator->init(null);
     }
 
+    /**
+     * @return array
+     */
     public function isValidDataProvider()
     {
         return [
diff --git a/app/code/Magento/AdvancedPricingImportExport/Test/Unit/Model/Import/AdvancedPricingTest.php b/app/code/Magento/AdvancedPricingImportExport/Test/Unit/Model/Import/AdvancedPricingTest.php
index f2deae44de939..45b035e58153d 100644
--- a/app/code/Magento/AdvancedPricingImportExport/Test/Unit/Model/Import/AdvancedPricingTest.php
+++ b/app/code/Magento/AdvancedPricingImportExport/Test/Unit/Model/Import/AdvancedPricingTest.php
@@ -751,6 +751,9 @@ public function testSaveProductPrices($priceData, $oldSkus, $priceIn, $callNum)
         $this->invokeMethod($this->advancedPricing, 'saveProductPrices', [$priceData, 'table']);
     }
 
+    /**
+     * @return array
+     */
     public function saveProductPricesDataProvider()
     {
         return [
@@ -822,6 +825,9 @@ public function testDeleteProductTierPrices(
         );
     }
 
+    /**
+     * @return array
+     */
     public function deleteProductTierPricesDataProvider()
     {
         return [
@@ -904,6 +910,9 @@ public function testProcessCountExistingPrices(
         $this->invokeMethod($this->advancedPricing, 'processCountExistingPrices', [$prices, 'table']);
     }
 
+    /**
+     * @return array
+     */
     public function processCountExistingPricesDataProvider()
     {
         return [
diff --git a/app/code/Magento/Authorization/Test/Unit/Model/Acl/AclRetrieverTest.php b/app/code/Magento/Authorization/Test/Unit/Model/Acl/AclRetrieverTest.php
index 9ad1001b4ed6d..13879e3e8a014 100644
--- a/app/code/Magento/Authorization/Test/Unit/Model/Acl/AclRetrieverTest.php
+++ b/app/code/Magento/Authorization/Test/Unit/Model/Acl/AclRetrieverTest.php
@@ -75,6 +75,9 @@ public function testGetAllowedResourcesByUser()
         );
     }
 
+    /**
+     * @return AclRetriever
+     */
     protected function createAclRetriever()
     {
         $this->roleMock = $this->getMock(
diff --git a/app/code/Magento/Authorizenet/Test/Unit/Model/Directpost/ResponseTest.php b/app/code/Magento/Authorizenet/Test/Unit/Model/Directpost/ResponseTest.php
index ba982238b4f72..9122ee6351e41 100644
--- a/app/code/Magento/Authorizenet/Test/Unit/Model/Directpost/ResponseTest.php
+++ b/app/code/Magento/Authorizenet/Test/Unit/Model/Directpost/ResponseTest.php
@@ -37,6 +37,9 @@ public function testGenerateHash($merchantMd5, $merchantApiLogin, $amount, $amou
         );
     }
 
+    /**
+     * @return array
+     */
     public function generateHashDataProvider()
     {
         return [
@@ -57,6 +60,13 @@ public function generateHashDataProvider()
         ];
     }
 
+    /**
+     * @param $merchantMd5
+     * @param $merchantApiLogin
+     * @param $amount
+     * @param $transactionId
+     * @return string
+     */
     protected function generateHash($merchantMd5, $merchantApiLogin, $amount, $transactionId)
     {
         return strtoupper(md5($merchantMd5 . $merchantApiLogin . $transactionId . $amount));
diff --git a/app/code/Magento/Backend/Model/Config/SessionLifetime/BackendModel.php b/app/code/Magento/Backend/Model/Config/SessionLifetime/BackendModel.php
index 2d0be0f358af8..becd09900fd8a 100644
--- a/app/code/Magento/Backend/Model/Config/SessionLifetime/BackendModel.php
+++ b/app/code/Magento/Backend/Model/Config/SessionLifetime/BackendModel.php
@@ -19,6 +19,10 @@ class BackendModel extends Value
     /** Minimum admin session lifetime */
     const MIN_LIFETIME = 60;
 
+    /**
+     * @return Value
+     * @throws LocalizedException
+     */
     public function beforeSave()
     {
         $value = (int) $this->getValue();
diff --git a/app/code/Magento/Backend/Model/View/Layout/Reader/Block.php b/app/code/Magento/Backend/Model/View/Layout/Reader/Block.php
index a807b3f7ecce7..c6d6d7ff3dc92 100644
--- a/app/code/Magento/Backend/Model/View/Layout/Reader/Block.php
+++ b/app/code/Magento/Backend/Model/View/Layout/Reader/Block.php
@@ -13,6 +13,14 @@
  */
 class Block extends Layout\Reader\Block
 {
+    /**
+     * Block constructor.
+     * @param Layout\ScheduledStructure\Helper $helper
+     * @param Layout\Argument\Parser $argumentParser
+     * @param Layout\ReaderPool $readerPool
+     * @param InterpreterInterface $argumentInterpreter
+     * @param null $scopeType
+     */
     public function __construct(
         Layout\ScheduledStructure\Helper $helper,
         Layout\Argument\Parser $argumentParser,
diff --git a/app/code/Magento/Backend/Test/Unit/App/Action/Plugin/AuthenticationTest.php b/app/code/Magento/Backend/Test/Unit/App/Action/Plugin/AuthenticationTest.php
index 38fb170999ee3..fedd5be0ba8df 100644
--- a/app/code/Magento/Backend/Test/Unit/App/Action/Plugin/AuthenticationTest.php
+++ b/app/code/Magento/Backend/Test/Unit/App/Action/Plugin/AuthenticationTest.php
@@ -149,6 +149,9 @@ public function testProcessNotLoggedInUser($isIFrameParam, $isAjaxParam, $isForw
         $this->assertEquals($expectedResult, $this->plugin->aroundDispatch($subject, $proceed, $request));
     }
 
+    /**
+     * @return array
+     */
     public function processNotLoggedInUserDataProvider()
     {
         return [
diff --git a/app/code/Magento/Backend/Test/Unit/App/Action/Plugin/MassactionKeyTest.php b/app/code/Magento/Backend/Test/Unit/App/Action/Plugin/MassactionKeyTest.php
index bea68dccf5c2e..26ce40281b395 100644
--- a/app/code/Magento/Backend/Test/Unit/App/Action/Plugin/MassactionKeyTest.php
+++ b/app/code/Magento/Backend/Test/Unit/App/Action/Plugin/MassactionKeyTest.php
@@ -75,6 +75,9 @@ public function testAroundDispatchWhenMassactionPrepareKeyRequestExists($postDat
         );
     }
 
+    /**
+     * @return array
+     */
     public function aroundDispatchDataProvider()
     {
         return [
diff --git a/app/code/Magento/Backend/Test/Unit/App/Action/Stub/ActionStub.php b/app/code/Magento/Backend/Test/Unit/App/Action/Stub/ActionStub.php
index 4eff6218961af..2d60bef3f3e8c 100644
--- a/app/code/Magento/Backend/Test/Unit/App/Action/Stub/ActionStub.php
+++ b/app/code/Magento/Backend/Test/Unit/App/Action/Stub/ActionStub.php
@@ -8,6 +8,9 @@
 
 class ActionStub extends \Magento\Backend\App\Action
 {
+    /**
+     * @return \Magento\Framework\App\ResponseInterface|\Magento\Framework\Controller\ResultInterface|void
+     */
     public function execute()
     {
         // Empty method stub for test
diff --git a/app/code/Magento/Backend/Test/Unit/App/Area/FrontNameResolverTest.php b/app/code/Magento/Backend/Test/Unit/App/Area/FrontNameResolverTest.php
index 0fe23b283a5ab..11a91c8e53a00 100644
--- a/app/code/Magento/Backend/Test/Unit/App/Area/FrontNameResolverTest.php
+++ b/app/code/Magento/Backend/Test/Unit/App/Area/FrontNameResolverTest.php
@@ -118,6 +118,9 @@ public function testIsHostBackend($url, $host, $useCustomAdminUrl, $customAdminU
         $this->assertEquals($this->model->isHostBackend(), $expectedValue);
     }
 
+    /**
+     * @return array
+     */
     public function hostsDataProvider()
     {
         return [
diff --git a/app/code/Magento/Backend/Test/Unit/App/ConfigTest.php b/app/code/Magento/Backend/Test/Unit/App/ConfigTest.php
index 3a2f793c2f298..5903d41f79c3c 100644
--- a/app/code/Magento/Backend/Test/Unit/App/ConfigTest.php
+++ b/app/code/Magento/Backend/Test/Unit/App/ConfigTest.php
@@ -79,6 +79,9 @@ public function testIsSetFlag($configPath, $configValue, $expectedResult)
         $this->assertEquals($expectedResult, $this->model->isSetFlag($configPath));
     }
 
+    /**
+     * @return array
+     */
     public function isSetFlagDataProvider()
     {
         return [
diff --git a/app/code/Magento/Backend/Test/Unit/Block/Cache/AdditionalTest.php b/app/code/Magento/Backend/Test/Unit/Block/Cache/AdditionalTest.php
index caf3247606d7f..2856da805e2b0 100644
--- a/app/code/Magento/Backend/Test/Unit/Block/Cache/AdditionalTest.php
+++ b/app/code/Magento/Backend/Test/Unit/Block/Cache/AdditionalTest.php
@@ -88,6 +88,9 @@ public function testIsInProductionMode($mode, $expected)
         $this->assertEquals($expected, $this->additonalBlock->isInProductionMode());
     }
 
+    /**
+     * @return array
+     */
     public function isInProductionModeDataProvider()
     {
         return [
diff --git a/app/code/Magento/Backend/Test/Unit/Block/Widget/ButtonTest.php b/app/code/Magento/Backend/Test/Unit/Block/Widget/ButtonTest.php
index a40c13b81409f..8536ff3dd77ec 100644
--- a/app/code/Magento/Backend/Test/Unit/Block/Widget/ButtonTest.php
+++ b/app/code/Magento/Backend/Test/Unit/Block/Widget/ButtonTest.php
@@ -61,6 +61,9 @@ public function testGetAttributesHtml($data, $expect)
         $this->assertRegExp($expect, $attributes);
     }
 
+    /**
+     * @return array
+     */
     public function getAttributesHtmlDataProvider()
     {
         return [
diff --git a/app/code/Magento/Backend/Test/Unit/Block/Widget/Grid/Column/Renderer/Radio/ExtendedTest.php b/app/code/Magento/Backend/Test/Unit/Block/Widget/Grid/Column/Renderer/Radio/ExtendedTest.php
index addc1af81ebfc..d68e951b5ced6 100644
--- a/app/code/Magento/Backend/Test/Unit/Block/Widget/Grid/Column/Renderer/Radio/ExtendedTest.php
+++ b/app/code/Magento/Backend/Test/Unit/Block/Widget/Grid/Column/Renderer/Radio/ExtendedTest.php
@@ -60,6 +60,9 @@ public function testRender(array $rowData, $expectedResult)
         $this->assertEquals($expectedResult, $this->_object->render(new \Magento\Framework\DataObject($rowData)));
     }
 
+    /**
+     * @return array
+     */
     public function renderDataProvider()
     {
         return [
diff --git a/app/code/Magento/Backend/Test/Unit/Block/Widget/Grid/Column/Renderer/RadioTest.php b/app/code/Magento/Backend/Test/Unit/Block/Widget/Grid/Column/Renderer/RadioTest.php
index a7c9e8ac082d9..55ea0ba9bd39c 100644
--- a/app/code/Magento/Backend/Test/Unit/Block/Widget/Grid/Column/Renderer/RadioTest.php
+++ b/app/code/Magento/Backend/Test/Unit/Block/Widget/Grid/Column/Renderer/RadioTest.php
@@ -69,6 +69,9 @@ public function testRender(array $rowData, $expectedResult)
         $this->assertEquals($expectedResult, $this->_object->render(new \Magento\Framework\DataObject($rowData)));
     }
 
+    /**
+     * @return array
+     */
     public function renderDataProvider()
     {
         return [
diff --git a/app/code/Magento/Backend/Test/Unit/Block/Widget/Grid/ColumnTest.php b/app/code/Magento/Backend/Test/Unit/Block/Widget/Grid/ColumnTest.php
index e5d8273ca02f3..37e60c1ad14b9 100644
--- a/app/code/Magento/Backend/Test/Unit/Block/Widget/Grid/ColumnTest.php
+++ b/app/code/Magento/Backend/Test/Unit/Block/Widget/Grid/ColumnTest.php
@@ -91,6 +91,9 @@ public function testGetSortable($value)
         $this->assertFalse($this->_block->getSortable());
     }
 
+    /**
+     * @return array
+     */
     public function getSortableDataProvider()
     {
         return ['zero' => ['0'], 'false' => [false], 'null' => [null]];
@@ -379,6 +382,9 @@ public function testColumnIsGrouped($groupedData, $expected)
         $this->assertEquals($expected, $block->isGrouped());
     }
 
+    /**
+     * @return array
+     */
     public function columnGroupedDataProvider()
     {
         return [[[], false], [['grouped' => 0], false], [['grouped' => 1], true]];
diff --git a/app/code/Magento/Backend/Test/Unit/Block/Widget/Grid/Massaction/ExtendedTest.php b/app/code/Magento/Backend/Test/Unit/Block/Widget/Grid/Massaction/ExtendedTest.php
index 7c1d32fa18820..39672d68015cf 100644
--- a/app/code/Magento/Backend/Test/Unit/Block/Widget/Grid/Massaction/ExtendedTest.php
+++ b/app/code/Magento/Backend/Test/Unit/Block/Widget/Grid/Massaction/ExtendedTest.php
@@ -155,6 +155,9 @@ public function testGetGridIdsJsonWithUseSelectAll(array $items, $result)
         $this->assertEquals($result, $this->_block->getGridIdsJson());
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderGetGridIdsJsonWithUseSelectAll()
     {
         return [
diff --git a/app/code/Magento/Backend/Test/Unit/Block/Widget/Grid/MassactionTest.php b/app/code/Magento/Backend/Test/Unit/Block/Widget/Grid/MassactionTest.php
index 23584ee41736a..57b587670d2c7 100644
--- a/app/code/Magento/Backend/Test/Unit/Block/Widget/Grid/MassactionTest.php
+++ b/app/code/Magento/Backend/Test/Unit/Block/Widget/Grid/MassactionTest.php
@@ -154,6 +154,9 @@ public function testItemsProcessing($itemId, $item, $expectedItem)
         $this->assertNull($this->_block->getItem($itemId));
     }
 
+    /**
+     * @return array
+     */
     public function itemsDataProvider()
     {
         return [
@@ -204,6 +207,9 @@ public function testSelected($param, $expectedJson, $expected)
         $this->assertEquals($expected, $this->_block->getSelected());
     }
 
+    /**
+     * @return array
+     */
     public function selectedDataProvider()
     {
         return [
@@ -259,6 +265,9 @@ public function testGetGridIdsJsonWithUseSelectAll(array $items, $result)
         $this->assertEquals($result, $this->_block->getGridIdsJson());
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderGetGridIdsJsonWithUseSelectAll()
     {
         return [
diff --git a/app/code/Magento/Backend/Test/Unit/Block/Widget/TabTest.php b/app/code/Magento/Backend/Test/Unit/Block/Widget/TabTest.php
index 7f6d1fddaa983..d82dde284f822 100644
--- a/app/code/Magento/Backend/Test/Unit/Block/Widget/TabTest.php
+++ b/app/code/Magento/Backend/Test/Unit/Block/Widget/TabTest.php
@@ -34,6 +34,9 @@ public function testGetters($method, $field, $value, $expected)
         $this->assertEquals($expected, $object->{$method}());
     }
 
+    /**
+     * @return array
+     */
     public function dataProvider()
     {
         return [
diff --git a/app/code/Magento/Backend/Test/Unit/Helper/DataTest.php b/app/code/Magento/Backend/Test/Unit/Helper/DataTest.php
index b28d900a4ce84..67c15ccfd54d7 100644
--- a/app/code/Magento/Backend/Test/Unit/Helper/DataTest.php
+++ b/app/code/Magento/Backend/Test/Unit/Helper/DataTest.php
@@ -66,6 +66,9 @@ public function testPrepareFilterStringValues(array $inputString, array $expecte
         $this->assertEquals($expected, $actual);
     }
 
+    /**
+     * @return array
+     */
     public function getPrepareFilterStringValuesDataProvider()
     {
         return [
diff --git a/app/code/Magento/Backend/Test/Unit/Model/Auth/SessionTest.php b/app/code/Magento/Backend/Test/Unit/Model/Auth/SessionTest.php
index f8f8e07e8dc80..3cfef01d588e1 100644
--- a/app/code/Magento/Backend/Test/Unit/Model/Auth/SessionTest.php
+++ b/app/code/Magento/Backend/Test/Unit/Model/Auth/SessionTest.php
@@ -130,6 +130,9 @@ public function testRefreshAcl($isUserPassedViaParams)
         $this->assertSame($aclMock, $this->session->getAcl());
     }
 
+    /**
+     * @return array
+     */
     public function refreshAclDataProvider()
     {
         return [
@@ -235,6 +238,9 @@ public function testIsAllowed($isUserDefined, $isAclDefined, $isAllowed, $expect
         $this->assertEquals($expectedResult, $this->session->isAllowed('resource'));
     }
 
+    /**
+     * @return array
+     */
     public function isAllowedDataProvider()
     {
         return [
@@ -255,6 +261,9 @@ public function testFirstPageAfterLogin($isFirstPageAfterLogin)
         $this->assertEquals($isFirstPageAfterLogin, $this->session->isFirstPageAfterLogin());
     }
 
+    /**
+     * @return array
+     */
     public function firstPageAfterLoginDataProvider()
     {
         return [
diff --git a/app/code/Magento/Backend/Test/Unit/Model/Config/SessionLifetime/BackendModelTest.php b/app/code/Magento/Backend/Test/Unit/Model/Config/SessionLifetime/BackendModelTest.php
index 522eef3b25383..f6ae5b2ed5d1d 100755
--- a/app/code/Magento/Backend/Test/Unit/Model/Config/SessionLifetime/BackendModelTest.php
+++ b/app/code/Magento/Backend/Test/Unit/Model/Config/SessionLifetime/BackendModelTest.php
@@ -24,6 +24,9 @@ public function testBeforeSave($value, $errorMessage = null)
         $model->beforeSave();
     }
 
+    /**
+     * @return array
+     */
     public function adminSessionLifetimeDataProvider()
     {
         return [
diff --git a/app/code/Magento/Backend/Test/Unit/Model/Menu/ConfigTest.php b/app/code/Magento/Backend/Test/Unit/Model/Menu/ConfigTest.php
index 8a7d3ba9f74d6..cb34363f36f4a 100644
--- a/app/code/Magento/Backend/Test/Unit/Model/Menu/ConfigTest.php
+++ b/app/code/Magento/Backend/Test/Unit/Model/Menu/ConfigTest.php
@@ -194,6 +194,9 @@ public function testGetMenuExceptionLogged($expectedException)
         $this->_model->getMenu();
     }
 
+    /**
+     * @return array
+     */
     public function getMenuExceptionLoggedDataProvider()
     {
         return [
diff --git a/app/code/Magento/Backend/Test/Unit/Model/Menu/Item/ValidatorTest.php b/app/code/Magento/Backend/Test/Unit/Model/Menu/Item/ValidatorTest.php
index 0b163718bfdfb..aae73eb27546d 100644
--- a/app/code/Magento/Backend/Test/Unit/Model/Menu/Item/ValidatorTest.php
+++ b/app/code/Magento/Backend/Test/Unit/Model/Menu/Item/ValidatorTest.php
@@ -79,6 +79,9 @@ public function testValidateWithMissingRequiredParamThrowsException($requiredPar
         }
     }
 
+    /**
+     * @return array
+     */
     public function requiredParamsProvider()
     {
         return [['id'], ['title'], ['resource']];
@@ -102,6 +105,9 @@ public function testValidateWithNonValidPrimitivesThrowsException($param, $inval
         }
     }
 
+    /**
+     * @return array
+     */
     public function invalidParamsProvider()
     {
         return [
diff --git a/app/code/Magento/Backend/Test/Unit/Model/MenuBuilderTest.php b/app/code/Magento/Backend/Test/Unit/Model/MenuBuilderTest.php
index 6067ccd0d1081..f965dbeab36a6 100644
--- a/app/code/Magento/Backend/Test/Unit/Model/MenuBuilderTest.php
+++ b/app/code/Magento/Backend/Test/Unit/Model/MenuBuilderTest.php
@@ -35,6 +35,9 @@ public function testAfterGetResult($isPub, $times)
         );
     }
 
+    /**
+     * @return array
+     */
     public function afterGetResultDataProvider()
     {
         return [[true, 1], [false, 0],];
diff --git a/app/code/Magento/Backend/Test/Unit/Model/Session/AdminConfigTest.php b/app/code/Magento/Backend/Test/Unit/Model/Session/AdminConfigTest.php
index 8d04457687298..6cb457733e2ae 100644
--- a/app/code/Magento/Backend/Test/Unit/Model/Session/AdminConfigTest.php
+++ b/app/code/Magento/Backend/Test/Unit/Model/Session/AdminConfigTest.php
@@ -141,6 +141,9 @@ public function testSetSessionSettingsByConstructor($secureRequest)
         $this->assertSame($secureRequest, $adminConfig->getCookieSecure());
     }
 
+    /**
+     * @return array
+     */
     public function requestSecureDataProvider()
     {
         return [[true], [false]];
diff --git a/app/code/Magento/Backend/Test/Unit/Model/Widget/Grid/ParserTest.php b/app/code/Magento/Backend/Test/Unit/Model/Widget/Grid/ParserTest.php
index a7617c2314707..271ddc91ca605 100644
--- a/app/code/Magento/Backend/Test/Unit/Model/Widget/Grid/ParserTest.php
+++ b/app/code/Magento/Backend/Test/Unit/Model/Widget/Grid/ParserTest.php
@@ -58,6 +58,9 @@ public function testIsOperation($operation, $expected)
         $this->assertEquals($expected, $this->_model->isOperation($operation));
     }
 
+    /**
+     * @return array
+     */
     public function isOperationDataProvider()
     {
         return [
diff --git a/app/code/Magento/Braintree/Block/Customer/PayPal/VaultTokenRenderer.php b/app/code/Magento/Braintree/Block/Customer/PayPal/VaultTokenRenderer.php
index b8b9a693a24e4..c8369825322f8 100644
--- a/app/code/Magento/Braintree/Block/Customer/PayPal/VaultTokenRenderer.php
+++ b/app/code/Magento/Braintree/Block/Customer/PayPal/VaultTokenRenderer.php
@@ -21,6 +21,12 @@ class VaultTokenRenderer extends AbstractTokenRenderer
      */
     private $config;
 
+    /**
+     * VaultTokenRenderer constructor.
+     * @param Template\Context $context
+     * @param Config $config
+     * @param array $data
+     */
     public function __construct(
         Template\Context $context,
         Config $config,
diff --git a/app/code/Magento/Braintree/Gateway/Config/PayPal/Config.php b/app/code/Magento/Braintree/Gateway/Config/PayPal/Config.php
index 1ebec5226e629..6387297148c6b 100644
--- a/app/code/Magento/Braintree/Gateway/Config/PayPal/Config.php
+++ b/app/code/Magento/Braintree/Gateway/Config/PayPal/Config.php
@@ -35,6 +35,13 @@ class Config extends \Magento\Payment\Gateway\Config\Config
      */
     private $icon = [];
 
+    /**
+     * Config constructor.
+     * @param ScopeConfigInterface $scopeConfig
+     * @param CcConfig $ccConfig
+     * @param null $methodCode
+     * @param string $pathPattern
+     */
     public function __construct(
         ScopeConfigInterface $scopeConfig,
         CcConfig $ccConfig,
diff --git a/app/code/Magento/Braintree/Model/Report/FilterMapper.php b/app/code/Magento/Braintree/Model/Report/FilterMapper.php
index dcfa721bc6c0a..a63a85ab3d47d 100644
--- a/app/code/Magento/Braintree/Model/Report/FilterMapper.php
+++ b/app/code/Magento/Braintree/Model/Report/FilterMapper.php
@@ -24,6 +24,11 @@ class FilterMapper
     /** @var BraintreeSearchAdapter */
     private $braintreeSearchAdapter;
 
+    /**
+     * FilterMapper constructor.
+     * @param AppliersPool $appliersPool
+     * @param BraintreeSearchAdapter $braintreeSearchAdapter
+     */
     public function __construct(
         AppliersPool $appliersPool,
         BraintreeSearchAdapter $braintreeSearchAdapter
diff --git a/app/code/Magento/Braintree/Model/Ui/PayPal/ConfigProvider.php b/app/code/Magento/Braintree/Model/Ui/PayPal/ConfigProvider.php
index 94388d259604a..2e70d031b559a 100644
--- a/app/code/Magento/Braintree/Model/Ui/PayPal/ConfigProvider.php
+++ b/app/code/Magento/Braintree/Model/Ui/PayPal/ConfigProvider.php
@@ -28,12 +28,20 @@ class ConfigProvider implements ConfigProviderInterface
      */
     private $resolver;
 
+    /**
+     * ConfigProvider constructor.
+     * @param Config $config
+     * @param ResolverInterface $resolver
+     */
     public function __construct(Config $config, ResolverInterface $resolver)
     {
         $this->config = $config;
         $this->resolver = $resolver;
     }
 
+    /**
+     * @return array
+     */
     public function getConfig()
     {
         return [
diff --git a/app/code/Magento/Bundle/Test/Unit/Block/Adminhtml/Sales/Order/Items/RendererTest.php b/app/code/Magento/Bundle/Test/Unit/Block/Adminhtml/Sales/Order/Items/RendererTest.php
index 0e47d32ea93ed..a340999c186cb 100644
--- a/app/code/Magento/Bundle/Test/Unit/Block/Adminhtml/Sales/Order/Items/RendererTest.php
+++ b/app/code/Magento/Bundle/Test/Unit/Block/Adminhtml/Sales/Order/Items/RendererTest.php
@@ -43,6 +43,9 @@ public function testGetChildrenEmptyItems($class, $method, $returnClass)
         $this->assertSame(null, $this->model->getChildren($item));
     }
 
+    /**
+     * @return array
+     */
     public function getChildrenEmptyItemsDataProvider()
     {
         return [
@@ -82,6 +85,9 @@ public function testGetChildren($parentItem)
         $this->assertSame([2 => $this->orderItem], $this->model->getChildren($item));
     }
 
+    /**
+     * @return array
+     */
     public function getChildrenDataProvider()
     {
         return [
@@ -101,6 +107,9 @@ public function testIsShipmentSeparatelyWithoutItem($productOptions, $result)
         $this->assertSame($result, $this->model->isShipmentSeparately());
     }
 
+    /**
+     * @return array
+     */
     public function isShipmentSeparatelyWithoutItemDataProvider()
     {
         return [
@@ -129,6 +138,9 @@ public function testIsShipmentSeparatelyWithItem($productOptions, $result, $pare
         $this->assertSame($result, $this->model->isShipmentSeparately($this->orderItem));
     }
 
+    /**
+     * @return array
+     */
     public function isShipmentSeparatelyWithItemDataProvider()
     {
         return [
@@ -150,6 +162,9 @@ public function testIsChildCalculatedWithoutItem($productOptions, $result)
         $this->assertSame($result, $this->model->isChildCalculated());
     }
 
+    /**
+     * @return array
+     */
     public function isChildCalculatedWithoutItemDataProvider()
     {
         return [
@@ -178,6 +193,9 @@ public function testIsChildCalculatedWithItem($productOptions, $result, $parentI
         $this->assertSame($result, $this->model->isChildCalculated($this->orderItem));
     }
 
+    /**
+     * @return array
+     */
     public function isChildCalculatedWithItemDataProvider()
     {
         return [
@@ -197,6 +215,9 @@ public function testGetSelectionAttributes($productOptions, $result)
         $this->assertSame($result, $this->model->getSelectionAttributes($this->orderItem));
     }
 
+    /**
+     * @return array
+     */
     public function getSelectionAttributesDataProvider()
     {
         return [
@@ -236,6 +257,9 @@ public function testCanShowPriceInfo($parentItem, $productOptions, $result)
         $this->assertSame($result, $this->model->canShowPriceInfo($this->orderItem));
     }
 
+    /**
+     * @return array
+     */
     public function canShowPriceInfoDataProvider()
     {
         return [
diff --git a/app/code/Magento/Bundle/Test/Unit/Block/Adminhtml/Sales/Order/View/Items/RendererTest.php b/app/code/Magento/Bundle/Test/Unit/Block/Adminhtml/Sales/Order/View/Items/RendererTest.php
index 57f01e23e6cf6..557712c84bb32 100644
--- a/app/code/Magento/Bundle/Test/Unit/Block/Adminhtml/Sales/Order/View/Items/RendererTest.php
+++ b/app/code/Magento/Bundle/Test/Unit/Block/Adminhtml/Sales/Order/View/Items/RendererTest.php
@@ -38,6 +38,9 @@ public function testIsShipmentSeparatelyWithoutItem($productOptions, $result)
         $this->assertSame($result, $this->model->isShipmentSeparately());
     }
 
+    /**
+     * @return array
+     */
     public function isShipmentSeparatelyWithoutItemDataProvider()
     {
         return [
@@ -66,6 +69,9 @@ public function testIsShipmentSeparatelyWithItem($productOptions, $result, $pare
         $this->assertSame($result, $this->model->isShipmentSeparately($this->orderItem));
     }
 
+    /**
+     * @return array
+     */
     public function isShipmentSeparatelyWithItemDataProvider()
     {
         return [
@@ -87,6 +93,9 @@ public function testIsChildCalculatedWithoutItem($productOptions, $result)
         $this->assertSame($result, $this->model->isChildCalculated());
     }
 
+    /**
+     * @return array
+     */
     public function isChildCalculatedWithoutItemDataProvider()
     {
         return [
@@ -115,6 +124,9 @@ public function testIsChildCalculatedWithItem($productOptions, $result, $parentI
         $this->assertSame($result, $this->model->isChildCalculated($this->orderItem));
     }
 
+    /**
+     * @return array
+     */
     public function isChildCalculatedWithItemDataProvider()
     {
         return [
@@ -134,6 +146,9 @@ public function testGetSelectionAttributes($productOptions, $result)
         $this->assertSame($result, $this->model->getSelectionAttributes($this->orderItem));
     }
 
+    /**
+     * @return array
+     */
     public function getSelectionAttributesDataProvider()
     {
         return [
@@ -167,6 +182,9 @@ public function testCanShowPriceInfo($parentItem, $productOptions, $result)
         $this->assertSame($result, $this->model->canShowPriceInfo($this->orderItem));
     }
 
+    /**
+     * @return array
+     */
     public function canShowPriceInfoDataProvider()
     {
         return [
diff --git a/app/code/Magento/Bundle/Test/Unit/Block/Catalog/Product/View/Type/BundleTest.php b/app/code/Magento/Bundle/Test/Unit/Block/Catalog/Product/View/Type/BundleTest.php
index 187c552b89347..8ae03aa840cc2 100644
--- a/app/code/Magento/Bundle/Test/Unit/Block/Catalog/Product/View/Type/BundleTest.php
+++ b/app/code/Magento/Bundle/Test/Unit/Block/Catalog/Product/View/Type/BundleTest.php
@@ -315,6 +315,10 @@ private function setupBundleBlock($options, $priceInfo, $priceType)
         return $bundleBlock;
     }
 
+    /**
+     * @param $price
+     * @return \PHPUnit_Framework_MockObject_MockObject
+     */
     private function getPriceInfoMock($price)
     {
         $priceInfoMock = $this->getMockBuilder('\Magento\Framework\Pricing\PriceInfo\Base')
@@ -339,6 +343,10 @@ private function getPriceInfoMock($price)
         return $priceInfoMock;
     }
 
+    /**
+     * @param $prices
+     * @return \PHPUnit_Framework_MockObject_MockObject
+     */
     private function getPriceMock($prices)
     {
         $methods = [];
diff --git a/app/code/Magento/Bundle/Test/Unit/Block/Sales/Order/Items/RendererTest.php b/app/code/Magento/Bundle/Test/Unit/Block/Sales/Order/Items/RendererTest.php
index 10aa69acb8dc8..b3fc0ee0ffb00 100644
--- a/app/code/Magento/Bundle/Test/Unit/Block/Sales/Order/Items/RendererTest.php
+++ b/app/code/Magento/Bundle/Test/Unit/Block/Sales/Order/Items/RendererTest.php
@@ -43,6 +43,9 @@ public function testGetChildrenEmptyItems($class, $method, $returnClass)
         $this->assertSame(null, $this->model->getChildren($item));
     }
 
+    /**
+     * @return array
+     */
     public function getChildrenEmptyItemsDataProvider()
     {
         return [
@@ -82,6 +85,9 @@ public function testGetChildren($parentItem)
         $this->assertSame([2 => $this->orderItem], $this->model->getChildren($item));
     }
 
+    /**
+     * @return array
+     */
     public function getChildrenDataProvider()
     {
         return [
@@ -101,6 +107,9 @@ public function testIsShipmentSeparatelyWithoutItem($productOptions, $result)
         $this->assertSame($result, $this->model->isShipmentSeparately());
     }
 
+    /**
+     * @return array
+     */
     public function isShipmentSeparatelyWithoutItemDataProvider()
     {
         return [
@@ -129,6 +138,9 @@ public function testIsShipmentSeparatelyWithItem($productOptions, $result, $pare
         $this->assertSame($result, $this->model->isShipmentSeparately($this->orderItem));
     }
 
+    /**
+     * @return array
+     */
     public function isShipmentSeparatelyWithItemDataProvider()
     {
         return [
@@ -150,6 +162,9 @@ public function testIsChildCalculatedWithoutItem($productOptions, $result)
         $this->assertSame($result, $this->model->isChildCalculated());
     }
 
+    /**
+     * @return array
+     */
     public function isChildCalculatedWithoutItemDataProvider()
     {
         return [
@@ -178,6 +193,9 @@ public function testIsChildCalculatedWithItem($productOptions, $result, $parentI
         $this->assertSame($result, $this->model->isChildCalculated($this->orderItem));
     }
 
+    /**
+     * @return array
+     */
     public function isChildCalculatedWithItemDataProvider()
     {
         return [
@@ -197,6 +215,9 @@ public function testGetSelectionAttributes($productOptions, $result)
         $this->assertSame($result, $this->model->getSelectionAttributes($this->orderItem));
     }
 
+    /**
+     * @return array
+     */
     public function getSelectionAttributesDataProvider()
     {
         return [
@@ -218,6 +239,9 @@ public function testCanShowPriceInfo($parentItem, $productOptions, $result)
         $this->assertSame($result, $this->model->canShowPriceInfo($this->orderItem));
     }
 
+    /**
+     * @return array
+     */
     public function canShowPriceInfoDataProvider()
     {
         return [
diff --git a/app/code/Magento/Bundle/Test/Unit/Model/Sales/Order/Pdf/Items/AbstractItemsTest.php b/app/code/Magento/Bundle/Test/Unit/Model/Sales/Order/Pdf/Items/AbstractItemsTest.php
index 2768455d91134..20329e737cdb6 100644
--- a/app/code/Magento/Bundle/Test/Unit/Model/Sales/Order/Pdf/Items/AbstractItemsTest.php
+++ b/app/code/Magento/Bundle/Test/Unit/Model/Sales/Order/Pdf/Items/AbstractItemsTest.php
@@ -43,6 +43,9 @@ public function testGetChildrenEmptyItems($class, $method, $returnClass)
         $this->assertSame(null, $this->model->getChildren($item));
     }
 
+    /**
+     * @return array
+     */
     public function getChildrenEmptyItemsDataProvider()
     {
         return [
@@ -82,6 +85,9 @@ public function testGetChildren($parentItem)
         $this->assertSame([2 => $this->orderItem], $this->model->getChildren($item));
     }
 
+    /**
+     * @return array
+     */
     public function getChildrenDataProvider()
     {
         return [
@@ -101,6 +107,9 @@ public function testIsShipmentSeparatelyWithoutItem($productOptions, $result)
         $this->assertSame($result, $this->model->isShipmentSeparately());
     }
 
+    /**
+     * @return array
+     */
     public function isShipmentSeparatelyWithoutItemDataProvider()
     {
         return [
@@ -129,6 +138,9 @@ public function testIsShipmentSeparatelyWithItem($productOptions, $result, $pare
         $this->assertSame($result, $this->model->isShipmentSeparately($this->orderItem));
     }
 
+    /**
+     * @return array
+     */
     public function isShipmentSeparatelyWithItemDataProvider()
     {
         return [
@@ -150,6 +162,9 @@ public function testIsChildCalculatedWithoutItem($productOptions, $result)
         $this->assertSame($result, $this->model->isChildCalculated());
     }
 
+    /**
+     * @return array
+     */
     public function isChildCalculatedWithoutItemDataProvider()
     {
         return [
@@ -178,6 +193,9 @@ public function testIsChildCalculatedWithItem($productOptions, $result, $parentI
         $this->assertSame($result, $this->model->isChildCalculated($this->orderItem));
     }
 
+    /**
+     * @return array
+     */
     public function isChildCalculatedWithItemDataProvider()
     {
         return [
@@ -198,6 +216,9 @@ public function testGetBundleOptions($productOptions, $result)
         $this->assertSame($result, $this->model->getBundleOptions());
     }
 
+    /**
+     * @return array
+     */
     public function getBundleOptionsDataProvider()
     {
         return [
@@ -215,6 +236,9 @@ public function testGetSelectionAttributes($productOptions, $result)
         $this->assertSame($result, $this->model->getSelectionAttributes($this->orderItem));
     }
 
+    /**
+     * @return array
+     */
     public function getSelectionAttributesDataProvider()
     {
         return [
@@ -254,6 +278,9 @@ public function testCanShowPriceInfo($parentItem, $productOptions, $result)
         $this->assertSame($result, $this->model->canShowPriceInfo($this->orderItem));
     }
 
+    /**
+     * @return array
+     */
     public function canShowPriceInfoDataProvider()
     {
         return [
diff --git a/app/code/Magento/Bundle/Test/Unit/Pricing/Adjustment/CalculatorTest.php b/app/code/Magento/Bundle/Test/Unit/Pricing/Adjustment/CalculatorTest.php
index f929c4c71e376..e00a327448fb5 100644
--- a/app/code/Magento/Bundle/Test/Unit/Pricing/Adjustment/CalculatorTest.php
+++ b/app/code/Magento/Bundle/Test/Unit/Pricing/Adjustment/CalculatorTest.php
@@ -608,6 +608,9 @@ public function testGetOptionsAmount($searchMin, $useRegularPrice)
         $this->assertEquals($expectedResult, $result, 'Incorrect result');
     }
 
+    /**
+     * @return array
+     */
     public function getOptionsAmountDataProvider()
     {
         return [
diff --git a/app/code/Magento/Bundle/Test/Unit/Pricing/Price/BundleOptionPriceTest.php b/app/code/Magento/Bundle/Test/Unit/Pricing/Price/BundleOptionPriceTest.php
index 9f7fc6c3cf09f..5ace13d17dbac 100644
--- a/app/code/Magento/Bundle/Test/Unit/Pricing/Price/BundleOptionPriceTest.php
+++ b/app/code/Magento/Bundle/Test/Unit/Pricing/Price/BundleOptionPriceTest.php
@@ -159,6 +159,9 @@ protected function prepareOptionMocks($selectionCollection)
             ->will($this->returnValue($priceTypeMock));
     }
 
+    /**
+     * @return array
+     */
     public function getOptionsDataProvider()
     {
         return [
diff --git a/app/code/Magento/Bundle/Test/Unit/Pricing/Price/BundleSelectionPriceTest.php b/app/code/Magento/Bundle/Test/Unit/Pricing/Price/BundleSelectionPriceTest.php
index b2fcca66e3465..6643a25fdf429 100644
--- a/app/code/Magento/Bundle/Test/Unit/Pricing/Price/BundleSelectionPriceTest.php
+++ b/app/code/Magento/Bundle/Test/Unit/Pricing/Price/BundleSelectionPriceTest.php
@@ -132,6 +132,10 @@ protected function setUp()
         $this->setupSelectionPrice();
     }
 
+    /**
+     * @param bool $useRegularPrice
+     * @param int $qty
+     */
     protected function setupSelectionPrice($useRegularPrice = false, $qty = 1)
     {
         $this->selectionPrice = new \Magento\Bundle\Pricing\Price\BundleSelectionPrice(
@@ -306,6 +310,9 @@ public function testGetValueTypeFixedWithoutSelectionPriceType($useRegularPrice)
         $this->assertEquals($expectedPrice, $this->selectionPrice->getValue());
     }
 
+    /**
+     * @return array
+     */
     public function useRegularPriceDataProvider()
     {
         return [
diff --git a/app/code/Magento/Bundle/Test/Unit/Ui/DataProvider/Product/BundleDataProviderTest.php b/app/code/Magento/Bundle/Test/Unit/Ui/DataProvider/Product/BundleDataProviderTest.php
index d7a5c8c9a4b73..e82ccee347f42 100644
--- a/app/code/Magento/Bundle/Test/Unit/Ui/DataProvider/Product/BundleDataProviderTest.php
+++ b/app/code/Magento/Bundle/Test/Unit/Ui/DataProvider/Product/BundleDataProviderTest.php
@@ -76,6 +76,9 @@ protected function setUp()
             ->getMock();
     }
 
+    /**
+     * @return object
+     */
     protected function getModel()
     {
         return $this->objectManager->getObject(BundleDataProvider::class, [
diff --git a/app/code/Magento/CacheInvalidate/Test/Unit/Model/PurgeCacheTest.php b/app/code/Magento/CacheInvalidate/Test/Unit/Model/PurgeCacheTest.php
index a51a7838b0631..8a50880b5191e 100644
--- a/app/code/Magento/CacheInvalidate/Test/Unit/Model/PurgeCacheTest.php
+++ b/app/code/Magento/CacheInvalidate/Test/Unit/Model/PurgeCacheTest.php
@@ -82,6 +82,9 @@ public function testSendPurgeRequest($hosts)
         $this->assertTrue($this->model->sendPurgeRequest('tags'));
     }
 
+    /**
+     * @return array
+     */
     public function sendPurgeRequestDataProvider()
     {
         return [
diff --git a/app/code/Magento/Captcha/Test/Unit/Model/DefaultTest.php b/app/code/Magento/Captcha/Test/Unit/Model/DefaultTest.php
index 150d8614edf59..30c36029c92df 100644
--- a/app/code/Magento/Captcha/Test/Unit/Model/DefaultTest.php
+++ b/app/code/Magento/Captcha/Test/Unit/Model/DefaultTest.php
@@ -364,6 +364,9 @@ public function testIsShownToLoggedInUser($expectedResult, $formId)
         $this->assertEquals($expectedResult, $captcha->isShownToLoggedInUser());
     }
 
+    /**
+     * @return array
+     */
     public function isShownToLoggedInUserDataProvider()
     {
         return [
diff --git a/app/code/Magento/Catalog/Test/Unit/Block/Adminhtml/Product/Edit/Tab/AlertsTest.php b/app/code/Magento/Catalog/Test/Unit/Block/Adminhtml/Product/Edit/Tab/AlertsTest.php
index d54cf96af138b..87f14b239cc34 100644
--- a/app/code/Magento/Catalog/Test/Unit/Block/Adminhtml/Product/Edit/Tab/AlertsTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Block/Adminhtml/Product/Edit/Tab/AlertsTest.php
@@ -55,6 +55,9 @@ public function testCanShowTab($priceAllow, $stockAllow, $canShowTab)
         $this->assertEquals($canShowTab, $this->alerts->canShowTab());
     }
 
+    /**
+     * @return array
+     */
     public function canShowTabDataProvider()
     {
         return [
diff --git a/app/code/Magento/Catalog/Test/Unit/Block/Adminhtml/Product/Helper/Form/CategoryTest.php b/app/code/Magento/Catalog/Test/Unit/Block/Adminhtml/Product/Helper/Form/CategoryTest.php
index 9fa8dfa215f2b..bfa9805f7ad9d 100644
--- a/app/code/Magento/Catalog/Test/Unit/Block/Adminhtml/Product/Helper/Form/CategoryTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Block/Adminhtml/Product/Helper/Form/CategoryTest.php
@@ -50,6 +50,9 @@ public function testIsAllowed($isAllowed)
         }
     }
 
+    /**
+     * @return array
+     */
     public function isAllowedDataProvider()
     {
         return [
diff --git a/app/code/Magento/Catalog/Test/Unit/Block/Category/Rss/LinkTest.php b/app/code/Magento/Catalog/Test/Unit/Block/Category/Rss/LinkTest.php
index a38dfad117aab..a560ba81a9416 100644
--- a/app/code/Magento/Catalog/Test/Unit/Block/Category/Rss/LinkTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Block/Category/Rss/LinkTest.php
@@ -72,6 +72,9 @@ public function testIsRssAllowed($isAllowed)
         $this->assertEquals($isAllowed, $this->link->isRssAllowed());
     }
 
+    /**
+     * @return array
+     */
     public function isRssAllowedDataProvider()
     {
         return [
@@ -98,6 +101,9 @@ public function testIsTopCategory($isTop, $categoryLevel)
         $this->assertEquals($isTop, $this->link->isTopCategory());
     }
 
+    /**
+     * @return array
+     */
     public function isTopCategoryDataProvider()
     {
         return [
diff --git a/app/code/Magento/Catalog/Test/Unit/Block/Product/ProductList/RelatedTest.php b/app/code/Magento/Catalog/Test/Unit/Block/Product/ProductList/RelatedTest.php
index 656a4a391b261..e29b495e4bd17 100644
--- a/app/code/Magento/Catalog/Test/Unit/Block/Product/ProductList/RelatedTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Block/Product/ProductList/RelatedTest.php
@@ -75,6 +75,9 @@ public function testCanItemsAddToCart($isComposite, $isSaleable, $hasRequiredOpt
         );
     }
 
+    /**
+     * @return array
+     */
     public function canItemsAddToCartDataProvider()
     {
         return [
diff --git a/app/code/Magento/Catalog/Test/Unit/Block/Product/ProductList/ToolbarTest.php b/app/code/Magento/Catalog/Test/Unit/Block/Product/ProductList/ToolbarTest.php
index 1fd8f92c987b2..73e477da1b7db 100644
--- a/app/code/Magento/Catalog/Test/Unit/Block/Product/ProductList/ToolbarTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Block/Product/ProductList/ToolbarTest.php
@@ -239,6 +239,9 @@ public function testSetModes($mode, $expected)
         $this->assertEquals($expected, $block->getModes());
     }
 
+    /**
+     * @return array
+     */
     public function setModesDataProvider()
     {
         return [
diff --git a/app/code/Magento/Catalog/Test/Unit/Block/Product/Widget/NewWidgetTest.php b/app/code/Magento/Catalog/Test/Unit/Block/Product/Widget/NewWidgetTest.php
index 91046cbc25c41..ca0202ea3ad07 100644
--- a/app/code/Magento/Catalog/Test/Unit/Block/Product/Widget/NewWidgetTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Block/Product/Widget/NewWidgetTest.php
@@ -154,6 +154,9 @@ public function testGetCurrentPage($pageNumber, $expectedResult)
         $this->assertEquals($expectedResult, $this->block->getCurrentPage());
     }
 
+    /**
+     * @return array
+     */
     public function getCurrentPageDataProvider()
     {
         return [
@@ -315,6 +318,9 @@ public function testGetProductAllCollection($pagerEnable, $productsCount, $produ
         );
     }
 
+    /**
+     * @return array
+     */
     public function getProductCollectionDataProvider()
     {
         return [
diff --git a/app/code/Magento/Catalog/Test/Unit/Block/Rss/Product/NewProductsTest.php b/app/code/Magento/Catalog/Test/Unit/Block/Rss/Product/NewProductsTest.php
index 9fea854768b4c..bb751ec801d79 100644
--- a/app/code/Magento/Catalog/Test/Unit/Block/Rss/Product/NewProductsTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Block/Rss/Product/NewProductsTest.php
@@ -90,6 +90,9 @@ protected function setUp()
         );
     }
 
+    /**
+     * @return array
+     */
     public function isAllowedDataProvider()
     {
         return [
@@ -106,6 +109,9 @@ public function testIsAllowed($configValue, $expectedResult)
         $this->assertEquals($expectedResult, $this->block->isAllowed());
     }
 
+    /**
+     * @return mixed
+     */
     protected function getItemMock()
     {
         $methods = [
diff --git a/app/code/Magento/Catalog/Test/Unit/Block/Rss/Product/SpecialTest.php b/app/code/Magento/Catalog/Test/Unit/Block/Rss/Product/SpecialTest.php
index 5c1cc44a76b1c..58b301aa58705 100644
--- a/app/code/Magento/Catalog/Test/Unit/Block/Rss/Product/SpecialTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Block/Rss/Product/SpecialTest.php
@@ -167,6 +167,9 @@ public function testGetRssData()
         );
     }
 
+    /**
+     * @return \PHPUnit_Framework_MockObject_MockObject
+     */
     protected function getItemMock()
     {
         $item = $this->getMockBuilder('\Magento\Catalog\Model\Product')
diff --git a/app/code/Magento/Catalog/Test/Unit/Controller/Adminhtml/Product/Attribute/ValidateTest.php b/app/code/Magento/Catalog/Test/Unit/Controller/Adminhtml/Product/Attribute/ValidateTest.php
index d0a88c4a112cc..e4e70e055087e 100644
--- a/app/code/Magento/Catalog/Test/Unit/Controller/Adminhtml/Product/Attribute/ValidateTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Controller/Adminhtml/Product/Attribute/ValidateTest.php
@@ -195,6 +195,9 @@ public function testUniqueValidation(array $options, $isError)
         $this->assertInstanceOf(ResultJson::class, $this->getModel()->execute());
     }
 
+    /**
+     * @return array
+     */
     public function provideUniqueData()
     {
         return [
diff --git a/app/code/Magento/Catalog/Test/Unit/Model/Attribute/Config/XsdTest.php b/app/code/Magento/Catalog/Test/Unit/Model/Attribute/Config/XsdTest.php
index 9aabc62397b67..d36db7d8882d4 100644
--- a/app/code/Magento/Catalog/Test/Unit/Model/Attribute/Config/XsdTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Model/Attribute/Config/XsdTest.php
@@ -39,6 +39,9 @@ public function testExemplarXml($fixtureXml, array $expectedErrors)
         $this->assertEquals($expectedErrors, $actualErrors);
     }
 
+    /**
+     * @return array
+     */
     public function exemplarXmlDataProvider()
     {
         return [
diff --git a/app/code/Magento/Catalog/Test/Unit/Model/Category/Attribute/Backend/SortbyTest.php b/app/code/Magento/Catalog/Test/Unit/Model/Category/Attribute/Backend/SortbyTest.php
index e364d3a2f4d85..8a3f4f1544fc5 100644
--- a/app/code/Magento/Catalog/Test/Unit/Model/Category/Attribute/Backend/SortbyTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Model/Category/Attribute/Backend/SortbyTest.php
@@ -76,6 +76,9 @@ public function testBeforeSave($attributeCode, $data, $expected)
         $this->assertSame($expected, $object->getData($attributeCode));
     }
 
+    /**
+     * @return array
+     */
     public function beforeSaveDataProvider()
     {
         return [
@@ -122,6 +125,9 @@ public function testAfterLoad($attributeCode, $data, $expected)
         $this->assertSame($expected, $object->getData($attributeCode));
     }
 
+    /**
+     * @return array
+     */
     public function afterLoadDataProvider()
     {
         return [
@@ -164,6 +170,9 @@ public function testValidate($attributeData, $data, $expected)
         $this->assertSame($expected, $this->_model->validate($object));
     }
 
+    /**
+     * @return array
+     */
     public function validateDataProvider()
     {
         return [
@@ -256,6 +265,9 @@ public function testValidateDefaultSort($attributeCode, $data)
         $this->assertTrue($this->_model->validate($object));
     }
 
+    /**
+     * @return array
+     */
     public function validateDefaultSortDataProvider()
     {
         return [
@@ -299,6 +311,9 @@ public function testValidateDefaultSortException($attributeCode, $data)
         $this->_model->validate($object);
     }
 
+    /**
+     * @return array
+     */
     public function validateDefaultSortException()
     {
         return [
diff --git a/app/code/Magento/Catalog/Test/Unit/Model/CategoryRepositoryTest.php b/app/code/Magento/Catalog/Test/Unit/Model/CategoryRepositoryTest.php
index afa319f37510b..d2fba1294c2ea 100644
--- a/app/code/Magento/Catalog/Test/Unit/Model/CategoryRepositoryTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Model/CategoryRepositoryTest.php
@@ -292,6 +292,9 @@ public function testSaveWithValidateCategoryException($error, $expectedException
         $this->model->save($categoryMock);
     }
 
+    /**
+     * @return array
+     */
     public function saveWithValidateCategoryExceptionDataProvider()
     {
         return [
diff --git a/app/code/Magento/Catalog/Test/Unit/Model/Indexer/Category/Flat/Plugin/IndexerConfigDataTest.php b/app/code/Magento/Catalog/Test/Unit/Model/Indexer/Category/Flat/Plugin/IndexerConfigDataTest.php
index aaff0473a6dca..fead0d5f36288 100644
--- a/app/code/Magento/Catalog/Test/Unit/Model/Indexer/Category/Flat/Plugin/IndexerConfigDataTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Model/Indexer/Category/Flat/Plugin/IndexerConfigDataTest.php
@@ -54,6 +54,9 @@ public function testAroundGet($isFlat, $path, $default, $inputData, $outputData)
         $this->assertEquals($outputData, $this->model->aroundGet($this->subjectMock, $closureMock, $path, $default));
     }
 
+    /**
+     * @return array
+     */
     public function aroundGetDataProvider()
     {
         $flatIndexerData = [
diff --git a/app/code/Magento/Catalog/Test/Unit/Model/Indexer/Category/Flat/StateTest.php b/app/code/Magento/Catalog/Test/Unit/Model/Indexer/Category/Flat/StateTest.php
index 988205b95405f..b2708dc5dbb90 100644
--- a/app/code/Magento/Catalog/Test/Unit/Model/Indexer/Category/Flat/StateTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Model/Indexer/Category/Flat/StateTest.php
@@ -103,6 +103,9 @@ public function testIsAvailable($isAvailable, $isFlatEnabled, $isValid, $result)
         $this->assertEquals($result, $this->model->isAvailable());
     }
 
+    /**
+     * @return array
+     */
     public function isAvailableDataProvider()
     {
         return [
diff --git a/app/code/Magento/Catalog/Test/Unit/Model/Indexer/Category/Flat/System/Config/ModeTest.php b/app/code/Magento/Catalog/Test/Unit/Model/Indexer/Category/Flat/System/Config/ModeTest.php
index a245bd678f6da..e8b8acf5c8d21 100644
--- a/app/code/Magento/Catalog/Test/Unit/Model/Indexer/Category/Flat/System/Config/ModeTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Model/Indexer/Category/Flat/System/Config/ModeTest.php
@@ -57,6 +57,9 @@ protected function setUp()
         );
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderProcessValueEqual()
     {
         return [['0', '0'], ['', '0'], ['0', ''], ['1', '1']];
@@ -92,6 +95,9 @@ public function testProcessValueEqual($oldValue, $value)
         $this->model->processValue();
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderProcessValueOn()
     {
         return [['0', '1'], ['', '1']];
@@ -143,6 +149,9 @@ public function testProcessValueOn($oldValue, $value)
         $this->model->processValue();
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderProcessValueOff()
     {
         return [['1', '0'], ['1', '']];
diff --git a/app/code/Magento/Catalog/Test/Unit/Model/Indexer/Category/Product/Plugin/StoreGroupTest.php b/app/code/Magento/Catalog/Test/Unit/Model/Indexer/Category/Product/Plugin/StoreGroupTest.php
index db44fa4b316e5..e814e2b4c9171 100644
--- a/app/code/Magento/Catalog/Test/Unit/Model/Indexer/Category/Product/Plugin/StoreGroupTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Model/Indexer/Category/Product/Plugin/StoreGroupTest.php
@@ -98,6 +98,9 @@ public function testAroundSaveNotNew($valueMap)
         $this->assertFalse($this->model->aroundSave($this->subject, $proceed, $groupMock));
     }
 
+    /**
+     * @return array
+     */
     public function changedDataProvider()
     {
         return [
@@ -139,6 +142,10 @@ protected function mockIndexerMethods()
             ->will($this->returnValue($this->indexerMock));
     }
 
+    /**
+     * @param bool $returnValue
+     * @return \Closure
+     */
     protected function mockPluginProceed($returnValue = false)
     {
         return function () use ($returnValue) {
diff --git a/app/code/Magento/Catalog/Test/Unit/Model/Indexer/Category/Product/Plugin/StoreViewTest.php b/app/code/Magento/Catalog/Test/Unit/Model/Indexer/Category/Product/Plugin/StoreViewTest.php
index 62f17b064d655..3566a9a6c197a 100644
--- a/app/code/Magento/Catalog/Test/Unit/Model/Indexer/Category/Product/Plugin/StoreViewTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Model/Indexer/Category/Product/Plugin/StoreViewTest.php
@@ -144,6 +144,10 @@ protected function mockIndexerMethods()
             ->will($this->returnValue($this->indexerMock));
     }
 
+    /**
+     * @param bool $returnValue
+     * @return \Closure
+     */
     protected function mockPluginProceed($returnValue = false)
     {
         return function () use ($returnValue) {
diff --git a/app/code/Magento/Catalog/Test/Unit/Model/Indexer/Product/Flat/Plugin/IndexerConfigDataTest.php b/app/code/Magento/Catalog/Test/Unit/Model/Indexer/Product/Flat/Plugin/IndexerConfigDataTest.php
index 6200f715d8d52..c22523bd6f251 100644
--- a/app/code/Magento/Catalog/Test/Unit/Model/Indexer/Product/Flat/Plugin/IndexerConfigDataTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Model/Indexer/Product/Flat/Plugin/IndexerConfigDataTest.php
@@ -54,6 +54,9 @@ public function testAroundGet($isFlat, $path, $default, $inputData, $outputData)
         $this->assertEquals($outputData, $this->model->aroundGet($this->subjectMock, $closureMock, $path, $default));
     }
 
+    /**
+     * @return array
+     */
     public function aroundGetDataProvider()
     {
         $flatIndexerData = [
diff --git a/app/code/Magento/Catalog/Test/Unit/Model/Indexer/Product/Flat/ProcessorTest.php b/app/code/Magento/Catalog/Test/Unit/Model/Indexer/Product/Flat/ProcessorTest.php
index f14bb487824ad..b2869c41a32b0 100644
--- a/app/code/Magento/Catalog/Test/Unit/Model/Indexer/Product/Flat/ProcessorTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Model/Indexer/Product/Flat/ProcessorTest.php
@@ -138,6 +138,9 @@ public function testReindexRow(
         $this->_model->reindexRow(1, $forceReindex);
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderReindexRow()
     {
         return [
@@ -207,6 +210,9 @@ public function testReindexList(
         $this->_model->reindexList([1], $forceReindex);
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderReindexList()
     {
         return [
diff --git a/app/code/Magento/Catalog/Test/Unit/Model/Indexer/Product/Flat/System/Config/ModeTest.php b/app/code/Magento/Catalog/Test/Unit/Model/Indexer/Product/Flat/System/Config/ModeTest.php
index 1e0ea7b0d08fb..27594d49657f6 100644
--- a/app/code/Magento/Catalog/Test/Unit/Model/Indexer/Product/Flat/System/Config/ModeTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Model/Indexer/Product/Flat/System/Config/ModeTest.php
@@ -56,6 +56,9 @@ protected function setUp()
         );
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderProcessValueEqual()
     {
         return [['0', '0'], ['', '0'], ['0', ''], ['1', '1']];
@@ -90,6 +93,9 @@ public function testProcessValueEqual($oldValue, $value)
         $this->model->processValue();
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderProcessValueOn()
     {
         return [['0', '1'], ['', '1']];
@@ -140,6 +146,9 @@ public function testProcessValueOn($oldValue, $value)
         $this->model->processValue();
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderProcessValueOff()
     {
         return [['1', '0'], ['1', '']];
diff --git a/app/code/Magento/Catalog/Test/Unit/Model/Layer/Filter/DataProvider/CategoryTest.php b/app/code/Magento/Catalog/Test/Unit/Model/Layer/Filter/DataProvider/CategoryTest.php
index 9502fd5894211..2cffbcbdc124d 100644
--- a/app/code/Magento/Catalog/Test/Unit/Model/Layer/Filter/DataProvider/CategoryTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Model/Layer/Filter/DataProvider/CategoryTest.php
@@ -77,6 +77,9 @@ protected function setUp()
         );
     }
 
+    /**
+     * @return \Magento\Catalog\Model\Layer\Filter\DataProvider\Category
+     */
     public function testGetCategoryWithAppliedId()
     {
         $storeId = 1234;
diff --git a/app/code/Magento/Catalog/Test/Unit/Model/Layer/Filter/DataProvider/PriceTest.php b/app/code/Magento/Catalog/Test/Unit/Model/Layer/Filter/DataProvider/PriceTest.php
index 659c94d25b774..c9886791cf097 100644
--- a/app/code/Magento/Catalog/Test/Unit/Model/Layer/Filter/DataProvider/PriceTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Model/Layer/Filter/DataProvider/PriceTest.php
@@ -165,6 +165,9 @@ public function testValidateFilter($filter, $expectedResult)
         $this->assertSame($expectedResult, $this->target->validateFilter($filter));
     }
 
+    /**
+     * @return array
+     */
     public function validateFilterDataProvider()
     {
         return [
diff --git a/app/code/Magento/Catalog/Test/Unit/Model/Product/ActionTest.php b/app/code/Magento/Catalog/Test/Unit/Model/Product/ActionTest.php
index f2452508f19ae..d8d7fd9e987c0 100644
--- a/app/code/Magento/Catalog/Test/Unit/Model/Product/ActionTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Model/Product/ActionTest.php
@@ -188,6 +188,9 @@ public function testUpdateWebsites($type, $methodName)
         $this->assertEquals($this->model->getDataByKey('action_type'), $type);
     }
 
+    /**
+     * @return array
+     */
     public function updateWebsitesDataProvider()
     {
         return [
diff --git a/app/code/Magento/Catalog/Test/Unit/Model/Product/CartConfigurationTest.php b/app/code/Magento/Catalog/Test/Unit/Model/Product/CartConfigurationTest.php
index 0b4b70428be85..bd46cb8477c03 100644
--- a/app/code/Magento/Catalog/Test/Unit/Model/Product/CartConfigurationTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Model/Product/CartConfigurationTest.php
@@ -21,6 +21,9 @@ public function testIsProductConfigured($productType, $config, $expected)
         $this->assertEquals($expected, $cartConfiguration->isProductConfigured($productMock, $config));
     }
 
+    /**
+     * @return array
+     */
     public function isProductConfiguredDataProvider()
     {
         return [
diff --git a/app/code/Magento/Catalog/Test/Unit/Model/Product/Gallery/ProcessorTest.php b/app/code/Magento/Catalog/Test/Unit/Model/Product/Gallery/ProcessorTest.php
index 908df829aed0f..0a70fa720d943 100644
--- a/app/code/Magento/Catalog/Test/Unit/Model/Product/Gallery/ProcessorTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Model/Product/Gallery/ProcessorTest.php
@@ -190,6 +190,9 @@ public function testValidate($value)
         $this->assertEquals(!$value, $this->model->validate($this->dataObject));
     }
 
+    /**
+     * @return array
+     */
     public function validateDataProvider()
     {
         return [
diff --git a/app/code/Magento/Catalog/Test/Unit/Model/Product/LinkTypeProviderTest.php b/app/code/Magento/Catalog/Test/Unit/Model/Product/LinkTypeProviderTest.php
index 9e8138abec6eb..122088563a353 100644
--- a/app/code/Magento/Catalog/Test/Unit/Model/Product/LinkTypeProviderTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Model/Product/LinkTypeProviderTest.php
@@ -123,6 +123,9 @@ public function testGetItemAttributes($type, $typeId)
         $this->assertEquals($expectedResult, $this->model->getItemAttributes($type));
     }
 
+    /**
+     * @return array
+     */
     public function getItemAttributesDataProvider()
     {
         return [
diff --git a/app/code/Magento/Catalog/Test/Unit/Model/Product/ProductList/ToolbarTest.php b/app/code/Magento/Catalog/Test/Unit/Model/Product/ProductList/ToolbarTest.php
index faa6734b069ce..838af501932a5 100644
--- a/app/code/Magento/Catalog/Test/Unit/Model/Product/ProductList/ToolbarTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Model/Product/ProductList/ToolbarTest.php
@@ -112,6 +112,9 @@ public function testGetCurrentPageNoParam()
         $this->assertEquals(1, $this->toolbarModel->getCurrentPage());
     }
 
+    /**
+     * @return array
+     */
     public function stringParamProvider()
     {
         return [
@@ -119,6 +122,9 @@ public function stringParamProvider()
         ];
     }
 
+    /**
+     * @return array
+     */
     public function intParamProvider()
     {
         return [
diff --git a/app/code/Magento/Catalog/Test/Unit/Model/Product/ReservedAttributeListTest.php b/app/code/Magento/Catalog/Test/Unit/Model/Product/ReservedAttributeListTest.php
index 6904426668014..037deeb5536d8 100644
--- a/app/code/Magento/Catalog/Test/Unit/Model/Product/ReservedAttributeListTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Model/Product/ReservedAttributeListTest.php
@@ -39,6 +39,9 @@ public function testIsReservedAttribute($isUserDefined, $attributeCode, $expecte
         $this->assertEquals($expected, $this->model->isReservedAttribute($attribute));
     }
 
+    /**
+     * @return array
+     */
     public function dataProvider()
     {
         return [
diff --git a/app/code/Magento/Catalog/Test/Unit/Model/Product/TierPriceManagementTest.php b/app/code/Magento/Catalog/Test/Unit/Model/Product/TierPriceManagementTest.php
index d368a77a10eb1..109119f575c91 100644
--- a/app/code/Magento/Catalog/Test/Unit/Model/Product/TierPriceManagementTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Model/Product/TierPriceManagementTest.php
@@ -166,6 +166,9 @@ public function testGetList($configValue, $customerGroupId, $groupData, $expecte
         }
     }
 
+    /**
+     * @return array
+     */
     public function getListDataProvider()
     {
         return [
@@ -400,6 +403,9 @@ public function testAddWithInvalidData($price, $qty)
         $this->service->add('product_sku', 1, $price, $qty);
     }
 
+    /**
+     * @return array
+     */
     public function addDataProvider()
     {
         return [
diff --git a/app/code/Magento/Catalog/Test/Unit/Model/Product/Type/AbstractTypeTest.php b/app/code/Magento/Catalog/Test/Unit/Model/Product/Type/AbstractTypeTest.php
index 205573e165644..dce29e1f957eb 100644
--- a/app/code/Magento/Catalog/Test/Unit/Model/Product/Type/AbstractTypeTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Model/Product/Type/AbstractTypeTest.php
@@ -96,6 +96,9 @@ public function testAttributesCompare($attr1, $attr2, $expectedResult)
         $this->assertEquals($expectedResult, $this->model->attributesCompare($attribute, $attribute2));
     }
 
+    /**
+     * @return array
+     */
     public function attributeCompareProvider()
     {
         return [
diff --git a/app/code/Magento/Catalog/Test/Unit/Model/Product/UrlTest.php b/app/code/Magento/Catalog/Test/Unit/Model/Product/UrlTest.php
index 8f714f170b257..30467b3f33f67 100644
--- a/app/code/Magento/Catalog/Test/Unit/Model/Product/UrlTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Model/Product/UrlTest.php
@@ -169,6 +169,9 @@ public function testGetUrl(
         }
     }
 
+    /**
+     * @return array
+     */
     public function getUrlDataProvider()
     {
         return [
diff --git a/app/code/Magento/Catalog/Test/Unit/Model/ProductRepositoryTest.php b/app/code/Magento/Catalog/Test/Unit/Model/ProductRepositoryTest.php
index c5199f70adc0a..8be1a70e5d393 100644
--- a/app/code/Magento/Catalog/Test/Unit/Model/ProductRepositoryTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Model/ProductRepositoryTest.php
@@ -1112,6 +1112,9 @@ public function testSaveWithLinks(array $newLinks, array $existingLinks, array $
         $this->assertEquals($this->initializedProductMock, $results);
     }
 
+    /**
+     * @return mixed
+     */
     public function saveWithLinksDataProvider()
     {
         // Scenario 1
diff --git a/app/code/Magento/Catalog/Test/Unit/Model/ProductTest.php b/app/code/Magento/Catalog/Test/Unit/Model/ProductTest.php
index 5fda5f029e60f..61bba739bc3da 100644
--- a/app/code/Magento/Catalog/Test/Unit/Model/ProductTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Model/ProductTest.php
@@ -500,6 +500,9 @@ public function testGetCategoryCollectionCollectionNull($initCategoryCollection,
         $this->assertEquals($initCategoryCollection, $result);
     }
 
+    /**
+     * @return array
+     */
     public function getCategoryCollectionCollectionNullDataProvider()
     {
         return [
@@ -610,6 +613,9 @@ public function testReindex($productChanged, $isScheduled, $productFlatCount, $c
         $this->model->reindex();
     }
 
+    /**
+     * @return array
+     */
     public function getProductReindexProvider()
     {
         return array(
diff --git a/app/code/Magento/Catalog/Test/Unit/Model/ProductTypes/ConfigTest.php b/app/code/Magento/Catalog/Test/Unit/Model/ProductTypes/ConfigTest.php
index 584d034d03719..6b2cacedd8418 100644
--- a/app/code/Magento/Catalog/Test/Unit/Model/ProductTypes/ConfigTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Model/ProductTypes/ConfigTest.php
@@ -47,6 +47,9 @@ public function testGetType($value, $expected)
         $this->assertEquals($expected, $this->model->getType('global'));
     }
 
+    /**
+     * @return array
+     */
     public function getTypeDataProvider()
     {
         return [
diff --git a/app/code/Magento/Catalog/Test/Unit/Plugin/Block/TopmenuTest.php b/app/code/Magento/Catalog/Test/Unit/Plugin/Block/TopmenuTest.php
index 65eb3f5655b82..38b435df7e5b3 100644
--- a/app/code/Magento/Catalog/Test/Unit/Plugin/Block/TopmenuTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Plugin/Block/TopmenuTest.php
@@ -122,6 +122,9 @@ protected function _getCleanMock($className)
         return $this->getMock($className, [], [], '', false);
     }
 
+    /**
+     * @return \PHPUnit_Framework_MockObject_MockObject
+     */
     protected function _preparationData()
     {
         $this->_childrenCategory = $this->getMock(
diff --git a/app/code/Magento/Catalog/Test/Unit/Pricing/Price/BasePriceTest.php b/app/code/Magento/Catalog/Test/Unit/Pricing/Price/BasePriceTest.php
index 4a37cc218f3d5..18d63d0ab0b5b 100644
--- a/app/code/Magento/Catalog/Test/Unit/Pricing/Price/BasePriceTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Pricing/Price/BasePriceTest.php
@@ -107,6 +107,9 @@ public function testGetValue($specialPriceValue, $expectedResult)
         $this->assertSame($expectedResult, $this->basePrice->getValue());
     }
 
+    /**
+     * @return array
+     */
     public function getValueDataProvider()
     {
         return [[77, 77], [0, 0], [false, 99]];
diff --git a/app/code/Magento/Catalog/Test/Unit/Pricing/Price/CustomOptionPriceTest.php b/app/code/Magento/Catalog/Test/Unit/Pricing/Price/CustomOptionPriceTest.php
index 477a956c149a8..7e01a4e50da73 100644
--- a/app/code/Magento/Catalog/Test/Unit/Pricing/Price/CustomOptionPriceTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Pricing/Price/CustomOptionPriceTest.php
@@ -97,6 +97,10 @@ protected function setUp()
         );
     }
 
+    /**
+     * @param array $optionsData
+     * @return array
+     */
     protected function setupOptions(array $optionsData)
     {
         $options = [];
@@ -125,6 +129,10 @@ protected function setupOptions(array $optionsData)
         return $options;
     }
 
+    /**
+     * @param $optionsData
+     * @return array
+     */
     protected function setupSingleValueOptions($optionsData)
     {
         $options = [];
diff --git a/app/code/Magento/Catalog/Test/Unit/Pricing/Price/MinimalTierPriceCalculatorTest.php b/app/code/Magento/Catalog/Test/Unit/Pricing/Price/MinimalTierPriceCalculatorTest.php
index 8b3140785453b..30be6fe110689 100644
--- a/app/code/Magento/Catalog/Test/Unit/Pricing/Price/MinimalTierPriceCalculatorTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Pricing/Price/MinimalTierPriceCalculatorTest.php
@@ -61,6 +61,9 @@ public function setUp()
         );
     }
 
+    /**
+     * @return int
+     */
     private function getValueTierPricesExistShouldReturnMinTierPrice()
     {
         $minPrice = 5;
diff --git a/app/code/Magento/Catalog/Test/Unit/Pricing/Render/FinalPriceBoxTest.php b/app/code/Magento/Catalog/Test/Unit/Pricing/Render/FinalPriceBoxTest.php
index 7e1bc14755cf9..c00dc7fae31c8 100644
--- a/app/code/Magento/Catalog/Test/Unit/Pricing/Render/FinalPriceBoxTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Pricing/Render/FinalPriceBoxTest.php
@@ -403,6 +403,9 @@ public function testHasSpecialPrice($regularPrice, $finalPrice, $expectedResult)
         $this->assertEquals($expectedResult, $this->object->hasSpecialPrice());
     }
 
+    /**
+     * @return array
+     */
     public function hasSpecialPriceProvider()
     {
         return [
diff --git a/app/code/Magento/Catalog/Test/Unit/Pricing/Render/PriceBoxTest.php b/app/code/Magento/Catalog/Test/Unit/Pricing/Render/PriceBoxTest.php
index 71b4d2ee033f9..558246467e569 100644
--- a/app/code/Magento/Catalog/Test/Unit/Pricing/Render/PriceBoxTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Pricing/Render/PriceBoxTest.php
@@ -88,6 +88,9 @@ public function testGetCanDisplayQty($typeCode, $expected)
         $this->assertEquals($expected, $this->object->getCanDisplayQty($product));
     }
 
+    /**
+     * @return array
+     */
     public function getCanDisplayQtyDataProvider()
     {
         return [
diff --git a/app/code/Magento/Catalog/Test/Unit/Ui/DataProvider/CatalogEavValidationRulesTest.php b/app/code/Magento/Catalog/Test/Unit/Ui/DataProvider/CatalogEavValidationRulesTest.php
index 83d901e172f67..2f922708c23c6 100644
--- a/app/code/Magento/Catalog/Test/Unit/Ui/DataProvider/CatalogEavValidationRulesTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Ui/DataProvider/CatalogEavValidationRulesTest.php
@@ -53,6 +53,9 @@ public function testBuild($frontendInput, $frontendClass, array $eavConfig, arra
         $this->assertEquals($expectedResult, $this->catalogEavValidationRules->build($attribute, $eavConfig));
     }
 
+    /**
+     * @return array
+     */
     public function buildDataProvider()
     {
         $data['required'] = true;
diff --git a/app/code/Magento/CatalogImportExport/Test/Unit/Model/Import/Product/CategoryProcessorTest.php b/app/code/Magento/CatalogImportExport/Test/Unit/Model/Import/Product/CategoryProcessorTest.php
index d69ec9752a6f0..db871e1cc4acf 100644
--- a/app/code/Magento/CatalogImportExport/Test/Unit/Model/Import/Product/CategoryProcessorTest.php
+++ b/app/code/Magento/CatalogImportExport/Test/Unit/Model/Import/Product/CategoryProcessorTest.php
@@ -129,6 +129,9 @@ public function testGetCategoryById($categoriesCache, $expectedResult)
         $this->assertEquals($expectedResult, $actualResult);
     }
 
+    /**
+     * @return array
+     */
     public function getCategoryByIdDataProvider()
     {
         return [
diff --git a/app/code/Magento/CatalogImportExport/Test/Unit/Model/Import/Product/Type/AbstractTypeTest.php b/app/code/Magento/CatalogImportExport/Test/Unit/Model/Import/Product/Type/AbstractTypeTest.php
index 77741e2966b89..697cea6b07cc5 100644
--- a/app/code/Magento/CatalogImportExport/Test/Unit/Model/Import/Product/Type/AbstractTypeTest.php
+++ b/app/code/Magento/CatalogImportExport/Test/Unit/Model/Import/Product/Type/AbstractTypeTest.php
@@ -319,6 +319,9 @@ public function testIsRowValidError()
         $this->assertFalse($this->simpleType->isRowValid($rowData, $rowNum));
     }
 
+    /**
+     * @return array
+     */
     public function addAttributeOptionDataProvider()
     {
         return [
diff --git a/app/code/Magento/CatalogImportExport/Test/Unit/Model/Import/Product/Validator/TierPriceTest.php b/app/code/Magento/CatalogImportExport/Test/Unit/Model/Import/Product/Validator/TierPriceTest.php
index b271b5823420f..76d16b39c1c69 100644
--- a/app/code/Magento/CatalogImportExport/Test/Unit/Model/Import/Product/Validator/TierPriceTest.php
+++ b/app/code/Magento/CatalogImportExport/Test/Unit/Model/Import/Product/Validator/TierPriceTest.php
@@ -56,6 +56,10 @@ protected function setUp()
         );
     }
 
+    /**
+     * @param $groupId
+     * @return \Magento\CatalogImportExport\Model\Import\Product\Validator\TierPrice
+     */
     protected function processInit($groupId)
     {
         $searchResult = $this->getMock('Magento\Customer\Api\Data\GroupSearchResultsInterface', [], [], '', false);
diff --git a/app/code/Magento/CatalogImportExport/Test/Unit/Model/Import/ProductTest.php b/app/code/Magento/CatalogImportExport/Test/Unit/Model/Import/ProductTest.php
index 5abc2ce971a59..24ec6e33f88db 100644
--- a/app/code/Magento/CatalogImportExport/Test/Unit/Model/Import/ProductTest.php
+++ b/app/code/Magento/CatalogImportExport/Test/Unit/Model/Import/ProductTest.php
@@ -831,6 +831,9 @@ public function testGetCategoryProcessor()
         $this->assertEquals($expectedResult, $actualResult);
     }
 
+    /**
+     * @return array
+     */
     public function getStoreIdByCodeDataProvider()
     {
         return [
@@ -1317,7 +1320,10 @@ public function getImagesFromRowDataProvider()
             ],
         ];
     }
-    
+
+    /**
+     * @return array
+     */
     public function validateRowValidateNewProductTypeAddRowErrorCallDataProvider()
     {
         return [
@@ -1352,6 +1358,9 @@ public function validateRowValidateNewProductTypeAddRowErrorCallDataProvider()
         ];
     }
 
+    /**
+     * @return array
+     */
     public function validateRowCheckSpecifiedSkuDataProvider()
     {
         return [
@@ -1370,6 +1379,9 @@ public function validateRowCheckSpecifiedSkuDataProvider()
         ];
     }
 
+    /**
+     * @return array
+     */
     public function validateRowDataProvider()
     {
         return [
diff --git a/app/code/Magento/CatalogImportExport/Test/Unit/Model/Import/UploaderTest.php b/app/code/Magento/CatalogImportExport/Test/Unit/Model/Import/UploaderTest.php
index ab298dbaa1a52..849a2fcfdf8ea 100644
--- a/app/code/Magento/CatalogImportExport/Test/Unit/Model/Import/UploaderTest.php
+++ b/app/code/Magento/CatalogImportExport/Test/Unit/Model/Import/UploaderTest.php
@@ -154,6 +154,9 @@ public function testMoveFileName()
         $this->assertEquals(['name' => $fileName], $this->uploader->move($fileName));
     }
 
+    /**
+     * @return array
+     */
     public function moveFileUrlDataProvider()
     {
         return [
diff --git a/app/code/Magento/CatalogInventory/Test/Unit/Helper/StockTest.php b/app/code/Magento/CatalogInventory/Test/Unit/Helper/StockTest.php
index 4b39fdf40920f..008fe1209c189 100644
--- a/app/code/Magento/CatalogInventory/Test/Unit/Helper/StockTest.php
+++ b/app/code/Magento/CatalogInventory/Test/Unit/Helper/StockTest.php
@@ -164,6 +164,9 @@ public function testAddInStockFilterToCollection($configMock)
         $this->assertNull($this->stock->addInStockFilterToCollection($collectionMock));
     }
 
+    /**
+     * @return array
+     */
     public function filterProvider()
     {
         $configMock = $this->getMockBuilder('Magento\Framework\App\Config')
diff --git a/app/code/Magento/CatalogInventory/Test/Unit/Model/Plugin/ProductLinksTest.php b/app/code/Magento/CatalogInventory/Test/Unit/Model/Plugin/ProductLinksTest.php
index be13c92203f54..b9cab5d455135 100644
--- a/app/code/Magento/CatalogInventory/Test/Unit/Model/Plugin/ProductLinksTest.php
+++ b/app/code/Magento/CatalogInventory/Test/Unit/Model/Plugin/ProductLinksTest.php
@@ -60,6 +60,9 @@ public function testAfterGetProductCollectionShow($status, $callCount)
         $this->assertEquals($collectionMock, $this->model->afterGetProductCollection($subjectMock, $collectionMock));
     }
 
+    /**
+     * @return array
+     */
     private function buildMocks()
     {
         /** @var \Magento\Catalog\Model\ResourceModel\Product\Link\Product\Collection $collectionMock */
diff --git a/app/code/Magento/CatalogInventory/Test/Unit/Model/Spi/StockStateProviderTest.php b/app/code/Magento/CatalogInventory/Test/Unit/Model/Spi/StockStateProviderTest.php
index 64baecf62e162..b7b3f9f7eed40 100644
--- a/app/code/Magento/CatalogInventory/Test/Unit/Model/Spi/StockStateProviderTest.php
+++ b/app/code/Magento/CatalogInventory/Test/Unit/Model/Spi/StockStateProviderTest.php
@@ -252,41 +252,66 @@ public function testCheckQuoteItemQty(StockItemInterface $stockItem, $expectedRe
         );
     }
 
+    /**
+     * @return array
+     */
     public function verifyStockDataProvider()
     {
         return $this->prepareDataForMethod('verifyStock');
     }
 
+    /**
+     * @return array
+     */
     public function verifyNotificationDataProvider()
     {
         return $this->prepareDataForMethod('verifyNotification');
     }
 
+    /**
+     * @return array
+     */
     public function checkQtyDataProvider()
     {
         return $this->prepareDataForMethod('checkQty');
     }
 
+    /**
+     * @return array
+     */
     public function suggestQtyDataProvider()
     {
         return $this->prepareDataForMethod('suggestQty');
     }
 
+    /**
+     * @return array
+     */
     public function getStockQtyDataProvider()
     {
         return $this->prepareDataForMethod('getStockQty');
     }
 
+    /**
+     * @return array
+     */
     public function checkQtyIncrementsDataProvider()
     {
         return $this->prepareDataForMethod('checkQtyIncrements');
     }
 
+    /**
+     * @return array
+     */
     public function checkQuoteItemQtyDataProvider()
     {
         return $this->prepareDataForMethod('checkQuoteItemQty');
     }
 
+    /**
+     * @param $methodName
+     * @return array
+     */
     protected function prepareDataForMethod($methodName)
     {
         $variations = [];
@@ -327,6 +352,9 @@ protected function prepareDataForMethod($methodName)
         return $variations;
     }
 
+    /**
+     * @return array
+     */
     protected function getVariations()
     {
         $stockQty = 100;
@@ -439,6 +467,9 @@ public function testCheckQtyIncrementsMsg($isChildItem, $expectedMsg)
         $this->assertEquals($expectedMsg, $result->getMessage()->render());
     }
 
+    /**
+     * @return array
+     */
     public function checkQtyIncrementsMsgDataProvider()
     {
         return [
diff --git a/app/code/Magento/CatalogInventory/Test/Unit/Observer/RefundOrderInventoryObserverTest.php b/app/code/Magento/CatalogInventory/Test/Unit/Observer/RefundOrderInventoryObserverTest.php
index a7316029d8739..cde97a0795b83 100644
--- a/app/code/Magento/CatalogInventory/Test/Unit/Observer/RefundOrderInventoryObserverTest.php
+++ b/app/code/Magento/CatalogInventory/Test/Unit/Observer/RefundOrderInventoryObserverTest.php
@@ -152,6 +152,10 @@ public function testRefundOrderInventory()
         $this->observer->execute($this->eventObserver);
     }
 
+    /**
+     * @param $productId
+     * @return mixed
+     */
     private function getCreditMemoItem($productId)
     {
         $parentItemId = false;
diff --git a/app/code/Magento/CatalogRule/Test/Unit/Model/Product/PriceModifierTest.php b/app/code/Magento/CatalogRule/Test/Unit/Model/Product/PriceModifierTest.php
index a88f979079f4d..3e04d7a616699 100644
--- a/app/code/Magento/CatalogRule/Test/Unit/Model/Product/PriceModifierTest.php
+++ b/app/code/Magento/CatalogRule/Test/Unit/Model/Product/PriceModifierTest.php
@@ -62,6 +62,9 @@ public function testModifyPriceIfPriceExists($resultPrice, $expectedPrice)
         $this->assertEquals($expectedPrice, $this->priceModifier->modifyPrice(100, $this->productMock));
     }
 
+    /**
+     * @return array
+     */
     public function modifyPriceDataProvider()
     {
         return ['resulted_price_exists' => [150, 150], 'resulted_price_not_exists' => [null, 100]];
diff --git a/app/code/Magento/CatalogSearch/Test/Unit/Model/Adapter/Mysql/Filter/PreprocessorTest.php b/app/code/Magento/CatalogSearch/Test/Unit/Model/Adapter/Mysql/Filter/PreprocessorTest.php
index b78a29f75fe85..5e102e36c9a84 100644
--- a/app/code/Magento/CatalogSearch/Test/Unit/Model/Adapter/Mysql/Filter/PreprocessorTest.php
+++ b/app/code/Magento/CatalogSearch/Test/Unit/Model/Adapter/Mysql/Filter/PreprocessorTest.php
@@ -327,6 +327,9 @@ public function testProcessTermFilter($frontendInput, $fieldValue, $isNegation,
         $this->assertSame($expected, $this->removeWhitespaces($actualResult));
     }
 
+    /**
+     * @return array
+     */
     public function testTermFilterDataProvider()
     {
         return [
diff --git a/app/code/Magento/CatalogSearch/Test/Unit/Model/AdvancedTest.php b/app/code/Magento/CatalogSearch/Test/Unit/Model/AdvancedTest.php
index 89b60c3c31914..f9020d68d4621 100644
--- a/app/code/Magento/CatalogSearch/Test/Unit/Model/AdvancedTest.php
+++ b/app/code/Magento/CatalogSearch/Test/Unit/Model/AdvancedTest.php
@@ -104,6 +104,9 @@ protected function setUp()
             ->willReturn($this->store);
     }
 
+    /**
+     * @return array
+     */
     public function addFiltersDataProvider()
     {
         return array_merge(
@@ -277,6 +280,10 @@ private function createBackend($table)
         return $backend;
     }
 
+    /**
+     * @param string $optionText
+     * @return \PHPUnit_Framework_MockObject_MockObject
+     */
     private function createSource($optionText = 'optionText')
     {
         $source = $this->getMockBuilder('Magento\Eav\Model\Entity\Attribute\Source\AbstractSource')
@@ -289,6 +296,9 @@ private function createSource($optionText = 'optionText')
         return $source;
     }
 
+    /**
+     * @return array
+     */
     private function addFiltersPriceDataProvider()
     {
         return [
diff --git a/app/code/Magento/CatalogSearch/Test/Unit/Model/Autocomplete/DataProviderTest.php b/app/code/Magento/CatalogSearch/Test/Unit/Model/Autocomplete/DataProviderTest.php
index bd1a9912c92b8..42f5ce3026666 100644
--- a/app/code/Magento/CatalogSearch/Test/Unit/Model/Autocomplete/DataProviderTest.php
+++ b/app/code/Magento/CatalogSearch/Test/Unit/Model/Autocomplete/DataProviderTest.php
@@ -107,6 +107,9 @@ public function testGetItems()
         $this->assertEquals($expected, $result[0]->toArray());
     }
 
+    /**
+     * @param array $data
+     */
     private function buildCollection(array $data)
     {
         $collectionData = [];
diff --git a/app/code/Magento/CatalogSearch/Test/Unit/Model/Search/IndexBuilderTest.php b/app/code/Magento/CatalogSearch/Test/Unit/Model/Search/IndexBuilderTest.php
index 6b350e83ee385..f65b45e365efa 100644
--- a/app/code/Magento/CatalogSearch/Test/Unit/Model/Search/IndexBuilderTest.php
+++ b/app/code/Magento/CatalogSearch/Test/Unit/Model/Search/IndexBuilderTest.php
@@ -243,6 +243,11 @@ public function testBuildWithoutOutOfStock()
         $this->assertSame($this->select, $result);
     }
 
+    /**
+     * @param $index
+     * @param $tableSuffix
+     * @param bool $hasFilters
+     */
     protected function mockBuild($index, $tableSuffix, $hasFilters = false)
     {
         $this->request->expects($this->atLeastOnce())
diff --git a/app/code/Magento/CatalogSearch/Test/Unit/Model/Search/Indexer/IndexStructureTest.php b/app/code/Magento/CatalogSearch/Test/Unit/Model/Search/Indexer/IndexStructureTest.php
index ec5c1e131bb36..19a3fcb071808 100644
--- a/app/code/Magento/CatalogSearch/Test/Unit/Model/Search/Indexer/IndexStructureTest.php
+++ b/app/code/Magento/CatalogSearch/Test/Unit/Model/Search/Indexer/IndexStructureTest.php
@@ -123,6 +123,12 @@ private function createDimensionMock($name, $value)
         return $dimension;
     }
 
+    /**
+     * @param $callNumber
+     * @param $tableName
+     * @param $isTableExist
+     * @return mixed
+     */
     private function mockDropTable($callNumber, $tableName, $isTableExist)
     {
         $this->connection->expects($this->at($callNumber++))
@@ -138,6 +144,11 @@ private function mockDropTable($callNumber, $tableName, $isTableExist)
         return $callNumber;
     }
 
+    /**
+     * @param $callNumber
+     * @param $tableName
+     * @return mixed
+     */
     private function mockFulltextTable($callNumber, $tableName)
     {
         $table = $this->getMockBuilder('\Magento\Framework\DB\Ddl\Table')
diff --git a/app/code/Magento/CatalogUrlRewrite/Test/Unit/Ui/DataProvider/Product/Form/Modifier/ProductUrlRewriteTest.php b/app/code/Magento/CatalogUrlRewrite/Test/Unit/Ui/DataProvider/Product/Form/Modifier/ProductUrlRewriteTest.php
index 763f78ac1fea6..40f7642f35383 100644
--- a/app/code/Magento/CatalogUrlRewrite/Test/Unit/Ui/DataProvider/Product/Form/Modifier/ProductUrlRewriteTest.php
+++ b/app/code/Magento/CatalogUrlRewrite/Test/Unit/Ui/DataProvider/Product/Form/Modifier/ProductUrlRewriteTest.php
@@ -27,6 +27,9 @@ protected function setUp()
             ->getMockForAbstractClass();
     }
 
+    /**
+     * @return \Magento\Ui\DataProvider\Modifier\ModifierInterface|object
+     */
     protected function createModel()
     {
         return $this->objectManager->getObject(ProductUrlRewrite::class, [
diff --git a/app/code/Magento/CatalogWidget/Test/Unit/Block/Product/ProductsListTest.php b/app/code/Magento/CatalogWidget/Test/Unit/Block/Product/ProductsListTest.php
index 7d9e876db2856..649c248aad8d5 100644
--- a/app/code/Magento/CatalogWidget/Test/Unit/Block/Product/ProductsListTest.php
+++ b/app/code/Magento/CatalogWidget/Test/Unit/Block/Product/ProductsListTest.php
@@ -287,6 +287,9 @@ public function testCreateCollection($pagerEnable, $productsCount, $productsPerP
         $this->assertSame($collection, $this->productsList->createCollection());
     }
 
+    /**
+     * @return array
+     */
     public function createCollectionDataProvider()
     {
         return [
diff --git a/app/code/Magento/Checkout/Test/Unit/Block/Cart/AbstractCartTest.php b/app/code/Magento/Checkout/Test/Unit/Block/Cart/AbstractCartTest.php
index 0e4abff882552..9151dc52baca7 100644
--- a/app/code/Magento/Checkout/Test/Unit/Block/Cart/AbstractCartTest.php
+++ b/app/code/Magento/Checkout/Test/Unit/Block/Cart/AbstractCartTest.php
@@ -136,6 +136,9 @@ public function testGetTotalsCache($expectedResult, $isVirtual)
         $this->assertEquals($expectedResult, $model->getTotalsCache());
     }
 
+    /**
+     * @return array
+     */
     public function getTotalsCacheDataProvider()
     {
         return [
diff --git a/app/code/Magento/Checkout/Test/Unit/Block/Cart/LinkTest.php b/app/code/Magento/Checkout/Test/Unit/Block/Cart/LinkTest.php
index b25d693e51bb7..9b41366679613 100644
--- a/app/code/Magento/Checkout/Test/Unit/Block/Cart/LinkTest.php
+++ b/app/code/Magento/Checkout/Test/Unit/Block/Cart/LinkTest.php
@@ -82,6 +82,9 @@ public function testGetLabel($productCount, $label)
         $this->assertSame($label, (string)$block->getLabel());
     }
 
+    /**
+     * @return array
+     */
     public function getLabelDataProvider()
     {
         return [[1, 'My Cart (1 item)'], [2, 'My Cart (2 items)'], [0, 'My Cart']];
diff --git a/app/code/Magento/Checkout/Test/Unit/Block/LinkTest.php b/app/code/Magento/Checkout/Test/Unit/Block/LinkTest.php
index e6c83042914c1..a2b8eb21e7cd9 100644
--- a/app/code/Magento/Checkout/Test/Unit/Block/LinkTest.php
+++ b/app/code/Magento/Checkout/Test/Unit/Block/LinkTest.php
@@ -68,6 +68,9 @@ public function testToHtml($canOnepageCheckout, $isOutputEnabled)
         $this->assertEquals('', $block->toHtml());
     }
 
+    /**
+     * @return array
+     */
     public function toHtmlDataProvider()
     {
         return [[false, true], [true, false], [false, false]];
diff --git a/app/code/Magento/Checkout/Test/Unit/Block/Onepage/SuccessTest.php b/app/code/Magento/Checkout/Test/Unit/Block/Onepage/SuccessTest.php
index 693643cefa185..2eee123d5c958 100644
--- a/app/code/Magento/Checkout/Test/Unit/Block/Onepage/SuccessTest.php
+++ b/app/code/Magento/Checkout/Test/Unit/Block/Onepage/SuccessTest.php
@@ -103,6 +103,9 @@ public function testToHtmlOrderVisibleOnFront(array $invisibleStatuses, $expecte
         $this->assertEquals($expectedResult, $this->block->getIsOrderVisible());
     }
 
+    /**
+     * @return array
+     */
     public function invisibleStatusesProvider()
     {
         return [
diff --git a/app/code/Magento/Checkout/Test/Unit/Controller/Stub/OnepageStub.php b/app/code/Magento/Checkout/Test/Unit/Controller/Stub/OnepageStub.php
index 26771c1531267..1a8fecd8356bb 100644
--- a/app/code/Magento/Checkout/Test/Unit/Controller/Stub/OnepageStub.php
+++ b/app/code/Magento/Checkout/Test/Unit/Controller/Stub/OnepageStub.php
@@ -8,6 +8,9 @@
 
 class OnepageStub extends \Magento\Checkout\Controller\Onepage
 {
+    /**
+     * @return \Magento\Framework\App\ResponseInterface|\Magento\Framework\Controller\ResultInterface|void
+     */
     public function execute()
     {
         // Empty method stub for test
diff --git a/app/code/Magento/Checkout/Test/Unit/Model/CartTest.php b/app/code/Magento/Checkout/Test/Unit/Model/CartTest.php
index 12bec6f88c4f5..746170dd14fdd 100644
--- a/app/code/Magento/Checkout/Test/Unit/Model/CartTest.php
+++ b/app/code/Magento/Checkout/Test/Unit/Model/CartTest.php
@@ -293,6 +293,9 @@ public function testGetSummaryQty($useQty)
         $this->assertEquals($itemsCount, $this->cart->getSummaryQty());
     }
 
+    /**
+     * @return array
+     */
     public function useQtyDataProvider()
     {
         return [
diff --git a/app/code/Magento/Checkout/Test/Unit/Model/Session/SuccessValidatorTest.php b/app/code/Magento/Checkout/Test/Unit/Model/Session/SuccessValidatorTest.php
index a734a465d13e2..aa9a0e6975493 100644
--- a/app/code/Magento/Checkout/Test/Unit/Model/Session/SuccessValidatorTest.php
+++ b/app/code/Magento/Checkout/Test/Unit/Model/Session/SuccessValidatorTest.php
@@ -90,6 +90,10 @@ public function testIsValidTrue()
         $this->assertTrue($this->createSuccessValidator($checkoutSession)->isValid($checkoutSession));
     }
 
+    /**
+     * @param \PHPUnit_Framework_MockObject_MockObject $checkoutSession
+     * @return object
+     */
     protected function createSuccessValidator(\PHPUnit_Framework_MockObject_MockObject $checkoutSession)
     {
         return $this->objectManagerHelper->getObject(
diff --git a/app/code/Magento/Checkout/Test/Unit/Model/SidebarTest.php b/app/code/Magento/Checkout/Test/Unit/Model/SidebarTest.php
index bb86367765676..650e5e893d5f4 100644
--- a/app/code/Magento/Checkout/Test/Unit/Model/SidebarTest.php
+++ b/app/code/Magento/Checkout/Test/Unit/Model/SidebarTest.php
@@ -45,6 +45,9 @@ public function testGetResponseData($error, $result)
         $this->assertEquals($result, $this->sidebar->getResponseData($error));
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderGetResponseData()
     {
         return [
diff --git a/app/code/Magento/Checkout/Test/Unit/Model/Type/OnepageTest.php b/app/code/Magento/Checkout/Test/Unit/Model/Type/OnepageTest.php
index 39e79ec0d6820..eed68dba5de29 100644
--- a/app/code/Magento/Checkout/Test/Unit/Model/Type/OnepageTest.php
+++ b/app/code/Magento/Checkout/Test/Unit/Model/Type/OnepageTest.php
@@ -300,6 +300,9 @@ public function testInitCheckout($stepData, $isLoggedIn, $isSetStepDataCalled)
         $this->onepage->initCheckout();
     }
 
+    /**
+     * @return array
+     */
     public function initCheckoutDataProvider()
     {
         return [
@@ -332,6 +335,9 @@ public function testGetCheckoutMethod($isLoggedIn, $quoteCheckoutMethod, $isAllo
         $this->assertEquals($expected, $this->onepage->getCheckoutMethod());
     }
 
+    /**
+     * @return array
+     */
     public function getCheckoutMethodDataProvider()
     {
         return [
diff --git a/app/code/Magento/Cms/Test/Unit/Block/Adminhtml/Block/Widget/ChooserTest.php b/app/code/Magento/Cms/Test/Unit/Block/Adminhtml/Block/Widget/ChooserTest.php
index 1b9c9ee384a03..f6cd49c3dd443 100644
--- a/app/code/Magento/Cms/Test/Unit/Block/Adminhtml/Block/Widget/ChooserTest.php
+++ b/app/code/Magento/Cms/Test/Unit/Block/Adminhtml/Block/Widget/ChooserTest.php
@@ -233,6 +233,9 @@ public function testPrepareElementHtml($elementValue, $modelBlockId)
         $this->assertEquals($this->elementMock, $this->this->prepareElementHtml($this->elementMock));
     }
 
+    /**
+     * @return array
+     */
     public function prepareElementHtmlDataProvider()
     {
         return [
diff --git a/app/code/Magento/Cms/Test/Unit/Block/Adminhtml/Page/Widget/ChooserTest.php b/app/code/Magento/Cms/Test/Unit/Block/Adminhtml/Page/Widget/ChooserTest.php
index bdb18c88dfe9f..0dab50e12ccee 100644
--- a/app/code/Magento/Cms/Test/Unit/Block/Adminhtml/Page/Widget/ChooserTest.php
+++ b/app/code/Magento/Cms/Test/Unit/Block/Adminhtml/Page/Widget/ChooserTest.php
@@ -236,6 +236,9 @@ public function testPrepareElementHtml($elementValue, $cmsPageId)
         $this->assertEquals($this->elementMock, $this->this->prepareElementHtml($this->elementMock));
     }
 
+    /**
+     * @return array
+     */
     public function prepareElementHtmlDataProvider()
     {
         return [
diff --git a/app/code/Magento/Cms/Test/Unit/Helper/PageTest.php b/app/code/Magento/Cms/Test/Unit/Helper/PageTest.php
index 71c51690f7249..625dfe5a34d54 100644
--- a/app/code/Magento/Cms/Test/Unit/Helper/PageTest.php
+++ b/app/code/Magento/Cms/Test/Unit/Helper/PageTest.php
@@ -366,6 +366,9 @@ public function testPrepareResultPage(
         );
     }
 
+    /**
+     * @return array
+     */
     public function renderPageExtendedDataProvider()
     {
         return [
@@ -466,6 +469,9 @@ public function testGetPageUrl(
         $this->assertEquals($expectedResult, $this->object->getPageUrl($pageId));
     }
 
+    /**
+     * @return array
+     */
     public function getPageUrlDataProvider()
     {
         return [
diff --git a/app/code/Magento/Cms/Test/Unit/Helper/Wysiwyg/ImagesTest.php b/app/code/Magento/Cms/Test/Unit/Helper/Wysiwyg/ImagesTest.php
index bf7ba8932f5c6..33da362bef088 100644
--- a/app/code/Magento/Cms/Test/Unit/Helper/Wysiwyg/ImagesTest.php
+++ b/app/code/Magento/Cms/Test/Unit/Helper/Wysiwyg/ImagesTest.php
@@ -387,6 +387,9 @@ public function testGetCurrentPathThrowException()
         $this->fail('An expected exception has not been raised.');
     }
 
+    /**
+     * @return array
+     */
     public function providerGetCurrentPath()
     {
         return [
@@ -434,6 +437,9 @@ public function testGetImageHtmlDeclarationRenderingAsTag($baseUrl, $fileName, $
         $this->assertEquals($expectedHtml, $this->imagesHelper->getImageHtmlDeclaration($fileName, true));
     }
 
+    /**
+     * @return array
+     */
     public function providerGetImageHtmlDeclarationRenderingAsTag()
     {
         return [
@@ -468,6 +474,9 @@ public function testGetImageHtmlDeclaration($baseUrl, $fileName, $isUsingStaticU
         $this->assertEquals($expectedHtml, $this->imagesHelper->getImageHtmlDeclaration($fileName));
     }
 
+    /**
+     * @return array
+     */
     public function providerGetImageHtmlDeclaration()
     {
         return [
diff --git a/app/code/Magento/Cms/Test/Unit/Model/ResourceModel/Block/CollectionTest.php b/app/code/Magento/Cms/Test/Unit/Model/ResourceModel/Block/CollectionTest.php
index 82ed191f7aa83..04136cbcb680d 100644
--- a/app/code/Magento/Cms/Test/Unit/Model/ResourceModel/Block/CollectionTest.php
+++ b/app/code/Magento/Cms/Test/Unit/Model/ResourceModel/Block/CollectionTest.php
@@ -117,6 +117,9 @@ public function testAfterLoad($item, $storesData)
         $this->assertEquals($expectedResult[$item->getId()], $item->getStoreId());
     }
 
+    /**
+     * @return array
+     */
     public function getItemsDataProvider()
     {
         return [
diff --git a/app/code/Magento/Cms/Test/Unit/Model/ResourceModel/Page/CollectionTest.php b/app/code/Magento/Cms/Test/Unit/Model/ResourceModel/Page/CollectionTest.php
index 863cc3ea46154..92949c78fece2 100644
--- a/app/code/Magento/Cms/Test/Unit/Model/ResourceModel/Page/CollectionTest.php
+++ b/app/code/Magento/Cms/Test/Unit/Model/ResourceModel/Page/CollectionTest.php
@@ -117,6 +117,9 @@ public function testAfterLoad($item, $storesData)
         $this->assertEquals($expectedResult[$item->getId()], $item->getStoreId());
     }
 
+    /**
+     * @return array
+     */
     public function getItemsDataProvider()
     {
         return [
diff --git a/app/code/Magento/Cms/Test/Unit/Model/Wysiwyg/ConfigTest.php b/app/code/Magento/Cms/Test/Unit/Model/Wysiwyg/ConfigTest.php
index 02f1a79b99137..900decd9060a8 100644
--- a/app/code/Magento/Cms/Test/Unit/Model/Wysiwyg/ConfigTest.php
+++ b/app/code/Magento/Cms/Test/Unit/Model/Wysiwyg/ConfigTest.php
@@ -187,6 +187,9 @@ public function testGetConfig($data, $isAuthorizationAllowed, $expectedResults)
         $this->assertEquals('localhost/pub/static/', $config->getData('baseStaticDefaultUrl'));
     }
 
+    /**
+     * @return array
+     */
     public function getConfigDataProvider()
     {
         return [
diff --git a/app/code/Magento/Cms/Test/Unit/Observer/NoCookiesObserverTest.php b/app/code/Magento/Cms/Test/Unit/Observer/NoCookiesObserverTest.php
index d87cf9503ad79..597e4830b16b8 100644
--- a/app/code/Magento/Cms/Test/Unit/Observer/NoCookiesObserverTest.php
+++ b/app/code/Magento/Cms/Test/Unit/Observer/NoCookiesObserverTest.php
@@ -139,6 +139,9 @@ public function testNoCookies($pageUrl)
         $this->assertEquals($this->noCookiesObserver, $this->noCookiesObserver->execute($this->observerMock));
     }
 
+    /**
+     * @return array
+     */
     public function noCookiesDataProvider()
     {
         return [
diff --git a/app/code/Magento/CmsUrlRewrite/Model/CmsPageUrlPathGenerator.php b/app/code/Magento/CmsUrlRewrite/Model/CmsPageUrlPathGenerator.php
index 5cf621781664d..22b5f68c0d809 100644
--- a/app/code/Magento/CmsUrlRewrite/Model/CmsPageUrlPathGenerator.php
+++ b/app/code/Magento/CmsUrlRewrite/Model/CmsPageUrlPathGenerator.php
@@ -12,6 +12,10 @@ class CmsPageUrlPathGenerator
     /** @var \Magento\Framework\Filter\FilterManager */
     protected $filterManager;
 
+    /**
+     * CmsPageUrlPathGenerator constructor.
+     * @param \Magento\Framework\Filter\FilterManager $filterManager
+     */
     public function __construct(
         \Magento\Framework\Filter\FilterManager $filterManager
     ) {
diff --git a/app/code/Magento/Config/Test/Unit/Block/System/Config/DwstreeTest.php b/app/code/Magento/Config/Test/Unit/Block/System/Config/DwstreeTest.php
index 0b1ffd3ece225..646f2aeb46bcb 100644
--- a/app/code/Magento/Config/Test/Unit/Block/System/Config/DwstreeTest.php
+++ b/app/code/Magento/Config/Test/Unit/Block/System/Config/DwstreeTest.php
@@ -121,6 +121,9 @@ public function testInitTabs($section, $website, $store)
         );
     }
 
+    /**
+     * @return array
+     */
     public function initTabsDataProvider()
     {
         return [
diff --git a/app/code/Magento/Config/Test/Unit/Block/System/Config/Form/Field/Select/AllowspecificTest.php b/app/code/Magento/Config/Test/Unit/Block/System/Config/Form/Field/Select/AllowspecificTest.php
index 888137feca6de..7f29d5be6553e 100644
--- a/app/code/Magento/Config/Test/Unit/Block/System/Config/Form/Field/Select/AllowspecificTest.php
+++ b/app/code/Magento/Config/Test/Unit/Block/System/Config/Form/Field/Select/AllowspecificTest.php
@@ -94,6 +94,9 @@ public function testGetHtmlWhenValueIsEmpty($value)
         $this->assertNotEmpty($this->_object->getHtml());
     }
 
+    /**
+     * @return array
+     */
     public function getHtmlWhenValueIsEmptyDataProvider()
     {
         return [
diff --git a/app/code/Magento/Config/Test/Unit/Block/System/Config/Form/Fieldset/Modules/DisableOutputTest.php b/app/code/Magento/Config/Test/Unit/Block/System/Config/Form/Fieldset/Modules/DisableOutputTest.php
index 4ebb676c47715..8aec3497163ac 100644
--- a/app/code/Magento/Config/Test/Unit/Block/System/Config/Form/Fieldset/Modules/DisableOutputTest.php
+++ b/app/code/Magento/Config/Test/Unit/Block/System/Config/Form/Fieldset/Modules/DisableOutputTest.php
@@ -219,6 +219,9 @@ public function testRender($expanded, $nested, $extra)
         }
     }
 
+    /**
+     * @return array
+     */
     public function renderDataProvider()
     {
         return [
diff --git a/app/code/Magento/Config/Test/Unit/Block/System/Config/FormTest.php b/app/code/Magento/Config/Test/Unit/Block/System/Config/FormTest.php
index dda9e4aa2b873..0adb8aeb4a4fd 100644
--- a/app/code/Magento/Config/Test/Unit/Block/System/Config/FormTest.php
+++ b/app/code/Magento/Config/Test/Unit/Block/System/Config/FormTest.php
@@ -269,6 +269,9 @@ public function testInitForm($sectionIsVisible)
         $this->assertEquals($this->_formMock, $object->getForm());
     }
 
+    /**
+     * @return array
+     */
     public function initFormDataProvider()
     {
         return [
@@ -414,6 +417,9 @@ public function testInitGroup($shouldCloneFields, $prefixes, $callNum)
         $object->initForm();
     }
 
+    /**
+     * @return array
+     */
     public function initGroupDataProvider()
     {
         return [
diff --git a/app/code/Magento/Config/Test/Unit/Model/Config/Structure/AbstractElementTest.php b/app/code/Magento/Config/Test/Unit/Model/Config/Structure/AbstractElementTest.php
index 1af995b159fda..17d193c268f91 100644
--- a/app/code/Magento/Config/Test/Unit/Model/Config/Structure/AbstractElementTest.php
+++ b/app/code/Magento/Config/Test/Unit/Model/Config/Structure/AbstractElementTest.php
@@ -127,6 +127,9 @@ public function testIsVisibleReturnsTrueForProperScopes($settings, $scope)
         $this->assertTrue($this->_model->isVisible());
     }
 
+    /**
+     * @return array
+     */
     public function isVisibleReturnsTrueForProperScopesDataProvider()
     {
         return [
@@ -156,6 +159,9 @@ public function testIsVisibleReturnsFalseForNonProperScopes($settings, $scope)
         $this->assertFalse($this->_model->isVisible());
     }
 
+    /**
+     * @return array
+     */
     public function isVisibleReturnsFalseForNonProperScopesDataProvider()
     {
         return [
diff --git a/app/code/Magento/Config/Test/Unit/Model/Config/Structure/Element/Dependency/FieldTest.php b/app/code/Magento/Config/Test/Unit/Model/Config/Structure/Element/Dependency/FieldTest.php
index 25982c3713337..b99e77fce7a7f 100644
--- a/app/code/Magento/Config/Test/Unit/Model/Config/Structure/Element/Dependency/FieldTest.php
+++ b/app/code/Magento/Config/Test/Unit/Model/Config/Structure/Element/Dependency/FieldTest.php
@@ -88,6 +88,9 @@ public function testIsNegative($data, $isNegative)
         $this->assertEquals($isNegative, $this->_getFieldObject($data, $isNegative)->isNegative());
     }
 
+    /**
+     * @return array
+     */
     public function dataProvider()
     {
         return [
@@ -110,6 +113,9 @@ public function testIsValueSatisfy($data, $isNegative, $value, $expected)
         $this->assertEquals($expected, $this->_getFieldObject($data, $isNegative)->isValueSatisfy($value));
     }
 
+    /**
+     * @return array
+     */
     public function isValueSatisfyDataProvider()
     {
         return [
@@ -135,6 +141,9 @@ public function testGetValues($data, $isNegative, $expected)
         $this->assertEquals($expected, $this->_getFieldObject($data, $isNegative)->getValues());
     }
 
+    /**
+     * @return array
+     */
     public function getValuesDataProvider()
     {
         $complexDataValues = [self::COMPLEX_VALUE1, self::COMPLEX_VALUE2, self::COMPLEX_VALUE3];
diff --git a/app/code/Magento/Config/Test/Unit/Model/Config/Structure/Element/Dependency/MapperTest.php b/app/code/Magento/Config/Test/Unit/Model/Config/Structure/Element/Dependency/MapperTest.php
index eb648b172fd37..423903b66a214 100644
--- a/app/code/Magento/Config/Test/Unit/Model/Config/Structure/Element/Dependency/MapperTest.php
+++ b/app/code/Magento/Config/Test/Unit/Model/Config/Structure/Element/Dependency/MapperTest.php
@@ -149,6 +149,9 @@ public function testGetDependenciesWhenDependentIsInvisible($isValueSatisfy)
         $this->assertEquals($expected, $actual);
     }
 
+    /**
+     * @return array
+     */
     public function getDependenciesDataProvider()
     {
         return [[true], [false]];
diff --git a/app/code/Magento/Config/Test/Unit/Model/Config/Structure/Element/IteratorTest.php b/app/code/Magento/Config/Test/Unit/Model/Config/Structure/Element/IteratorTest.php
index 28f033a32158f..375d3eb5504b1 100644
--- a/app/code/Magento/Config/Test/Unit/Model/Config/Structure/Element/IteratorTest.php
+++ b/app/code/Magento/Config/Test/Unit/Model/Config/Structure/Element/IteratorTest.php
@@ -80,6 +80,9 @@ public function testIsLast($elementId, $result)
         $this->assertEquals($result, $this->_model->isLast($elementMock));
     }
 
+    /**
+     * @return array
+     */
     public function isLastDataProvider()
     {
         return [[1, false], [2, false], [3, true]];
diff --git a/app/code/Magento/Config/Test/Unit/Model/Config/Structure/Mapper/ExtendsTest.php b/app/code/Magento/Config/Test/Unit/Model/Config/Structure/Mapper/ExtendsTest.php
index bb4840ce044c3..2fb255ec21c65 100644
--- a/app/code/Magento/Config/Test/Unit/Model/Config/Structure/Mapper/ExtendsTest.php
+++ b/app/code/Magento/Config/Test/Unit/Model/Config/Structure/Mapper/ExtendsTest.php
@@ -44,6 +44,9 @@ public function testMapWithBadPath()
         $this->_sut->map($sourceData);
     }
 
+    /**
+     * @return array
+     */
     public function testMapDataProvider()
     {
         return [
@@ -55,6 +58,9 @@ public function testMapDataProvider()
         ];
     }
 
+    /**
+     * @return array
+     */
     protected function _emptySectionsNodeData()
     {
         $data = ['config' => ['system' => ['sections' => 'some_non_array']]];
@@ -62,6 +68,9 @@ protected function _emptySectionsNodeData()
         return [$data, $data];
     }
 
+    /**
+     * @return array
+     */
     protected function _extendFromASiblingData()
     {
         $source = $result = [
@@ -81,6 +90,9 @@ protected function _extendFromASiblingData()
         return [$source, $result];
     }
 
+    /**
+     * @return array
+     */
     protected function _extendFromNodeOnHigherLevelData()
     {
         $source = $result = [
@@ -114,6 +126,9 @@ protected function _extendFromNodeOnHigherLevelData()
         return [$source, $result];
     }
 
+    /**
+     * @return array
+     */
     protected function _extendWithMerge()
     {
         $source = $result = [
diff --git a/app/code/Magento/Config/Test/Unit/Model/Config/Structure/Mapper/Helper/RelativePathConverterTest.php b/app/code/Magento/Config/Test/Unit/Model/Config/Structure/Mapper/Helper/RelativePathConverterTest.php
index 143bdabd2685f..e844f5de5addd 100644
--- a/app/code/Magento/Config/Test/Unit/Model/Config/Structure/Mapper/Helper/RelativePathConverterTest.php
+++ b/app/code/Magento/Config/Test/Unit/Model/Config/Structure/Mapper/Helper/RelativePathConverterTest.php
@@ -50,11 +50,17 @@ public function testConvert($nodePath, $relativePath, $result)
         $this->assertEquals($result, $this->_sut->convert($nodePath, $relativePath));
     }
 
+    /**
+     * @return array
+     */
     public function testConvertWithInvalidArgumentsDataProvider()
     {
         return [['', ''], ['some/node', ''], ['', 'some/node']];
     }
 
+    /**
+     * @return array
+     */
     public function testConvertDataProvider()
     {
         return [
diff --git a/app/code/Magento/Config/Test/Unit/Model/Config/StructureTest.php b/app/code/Magento/Config/Test/Unit/Model/Config/StructureTest.php
index 031cbc24a2624..a6d092dfe0a99 100644
--- a/app/code/Magento/Config/Test/Unit/Model/Config/StructureTest.php
+++ b/app/code/Magento/Config/Test/Unit/Model/Config/StructureTest.php
@@ -205,6 +205,9 @@ public function testGetElementReturnsEmptyElementIfNotExistingElementIsRequested
         $this->assertEquals($elementMock, $this->_model->getElement($path));
     }
 
+    /**
+     * @return array
+     */
     public function emptyElementDataProvider()
     {
         return [
@@ -347,6 +350,9 @@ public function testGetFieldPathsByAttribute($attributeName, $attributeValue, $p
         $this->assertEquals($paths, $this->_model->getFieldPathsByAttribute($attributeName, $attributeValue));
     }
 
+    /**
+     * @return array
+     */
     public function getFieldPathsByAttributeDataProvider()
     {
         return [
diff --git a/app/code/Magento/Config/Test/Unit/Model/Placeholder/EnvironmentTest.php b/app/code/Magento/Config/Test/Unit/Model/Placeholder/EnvironmentTest.php
index a78a3afa9595e..3ccc75e25e88b 100644
--- a/app/code/Magento/Config/Test/Unit/Model/Placeholder/EnvironmentTest.php
+++ b/app/code/Magento/Config/Test/Unit/Model/Placeholder/EnvironmentTest.php
@@ -52,6 +52,9 @@ public function testGenerate($path, $scope, $scopeId, $expected)
         );
     }
 
+    /**
+     * @return array
+     */
     public function getGenerateDataProvider()
     {
         return [
diff --git a/app/code/Magento/ConfigurableImportExport/Test/Unit/Model/Import/Product/Type/ConfigurableTest.php b/app/code/Magento/ConfigurableImportExport/Test/Unit/Model/Import/Product/Type/ConfigurableTest.php
index c16a15a279554..bdb17a481cc45 100644
--- a/app/code/Magento/ConfigurableImportExport/Test/Unit/Model/Import/Product/Type/ConfigurableTest.php
+++ b/app/code/Magento/ConfigurableImportExport/Test/Unit/Model/Import/Product/Type/ConfigurableTest.php
@@ -448,6 +448,9 @@ protected function _getBunch()
         ];
     }
 
+    /**
+     * @return array
+     */
     protected function _getSuperAttributes()
     {
         return [
diff --git a/app/code/Magento/ConfigurableProduct/Test/Unit/Model/Attribute/LockValidatorTest.php b/app/code/Magento/ConfigurableProduct/Test/Unit/Model/Attribute/LockValidatorTest.php
index bd0306e8c9437..31b5bfe99cb1d 100644
--- a/app/code/Magento/ConfigurableProduct/Test/Unit/Model/Attribute/LockValidatorTest.php
+++ b/app/code/Magento/ConfigurableProduct/Test/Unit/Model/Attribute/LockValidatorTest.php
@@ -108,6 +108,10 @@ public function testValidateException()
         $this->validate(true);
     }
 
+    /**
+     * @param $exception
+     * @throws \Magento\Framework\Exception\LocalizedException
+     */
     public function validate($exception)
     {
         $attrTable = 'someAttributeTable';
diff --git a/app/code/Magento/ConfigurableProduct/Test/Unit/Model/OptionRepositoryTest.php b/app/code/Magento/ConfigurableProduct/Test/Unit/Model/OptionRepositoryTest.php
index 8436bc91f0ccb..071b619715f61 100644
--- a/app/code/Magento/ConfigurableProduct/Test/Unit/Model/OptionRepositoryTest.php
+++ b/app/code/Magento/ConfigurableProduct/Test/Unit/Model/OptionRepositoryTest.php
@@ -384,6 +384,9 @@ public function testValidateNewOptionData($attributeId, $label, $optionValues, $
         $this->model->validateNewOptionData($optionMock);
     }
 
+    /**
+     * @return array
+     */
     public function validateOptionDataProvider()
     {
         return [
diff --git a/app/code/Magento/ConfigurableProduct/Test/Unit/Observer/HideUnsupportedAttributeTypesTest.php b/app/code/Magento/ConfigurableProduct/Test/Unit/Observer/HideUnsupportedAttributeTypesTest.php
index 9ea49c4143c6c..86de8173502d5 100644
--- a/app/code/Magento/ConfigurableProduct/Test/Unit/Observer/HideUnsupportedAttributeTypesTest.php
+++ b/app/code/Magento/ConfigurableProduct/Test/Unit/Observer/HideUnsupportedAttributeTypesTest.php
@@ -59,6 +59,11 @@ private function createTarget(MockObject $request, array $supportedTypes = [])
         );
     }
 
+    /**
+     * @param $popup
+     * @param string $productTab
+     * @return MockObject
+     */
     private function createRequestMock($popup, $productTab = 'variations')
     {
         $request = $this->getMockBuilder(RequestInterface::class)
@@ -107,6 +112,9 @@ public function testExecuteWithDefaultTypes(array $supportedTypes, array $origin
         $this->assertEquals(null, $target->execute($event));
     }
 
+    /**
+     * @return array
+     */
     public function executeDataProvider()
     {
         return [
@@ -143,11 +151,21 @@ public function executeDataProvider()
         ];
     }
 
+    /**
+     * @param $value
+     * @param $label
+     * @return array
+     */
     private function createFrontendInputValue($value, $label)
     {
         return ['value' => $value, 'label' => $label];
     }
 
+    /**
+     * @param array $originalValues
+     * @param array $expectedValues
+     * @return MockObject
+     */
     private function createForm(array $originalValues = [], array $expectedValues = [])
     {
         $form = $this->getMockBuilder(\Magento\Framework\Data\Form::class)
diff --git a/app/code/Magento/ConfigurableProduct/Test/Unit/Pricing/Render/FinalPriceBoxTest.php b/app/code/Magento/ConfigurableProduct/Test/Unit/Pricing/Render/FinalPriceBoxTest.php
index 0a4754d6613aa..0cac3a653aa8e 100644
--- a/app/code/Magento/ConfigurableProduct/Test/Unit/Pricing/Render/FinalPriceBoxTest.php
+++ b/app/code/Magento/ConfigurableProduct/Test/Unit/Pricing/Render/FinalPriceBoxTest.php
@@ -391,6 +391,9 @@ public function testHasSpecialPrice($regularPrice, $finalPrice, $expectedResult)
         $this->assertEquals($expectedResult, $this->object->hasSpecialPrice());
     }
 
+    /**
+     * @return array
+     */
     public function hasSpecialPriceProvider()
     {
         return [
diff --git a/app/code/Magento/Contact/Test/Unit/Controller/Index/PostTest.php b/app/code/Magento/Contact/Test/Unit/Controller/Index/PostTest.php
index 9d6c456bc9b43..9d097b98acbb8 100644
--- a/app/code/Magento/Contact/Test/Unit/Controller/Index/PostTest.php
+++ b/app/code/Magento/Contact/Test/Unit/Controller/Index/PostTest.php
@@ -178,6 +178,9 @@ public function testExecutePostValidation($postData, $exceptionExpected)
         $this->controller->execute();
     }
 
+    /**
+     * @return array
+     */
     public function postDataProvider()
     {
         return [
diff --git a/app/code/Magento/Contact/Test/Unit/Controller/Stub/IndexStub.php b/app/code/Magento/Contact/Test/Unit/Controller/Stub/IndexStub.php
index a238daafaafaf..cabcebda061f9 100644
--- a/app/code/Magento/Contact/Test/Unit/Controller/Stub/IndexStub.php
+++ b/app/code/Magento/Contact/Test/Unit/Controller/Stub/IndexStub.php
@@ -8,6 +8,9 @@
 
 class IndexStub extends \Magento\Contact\Controller\Index
 {
+    /**
+     * @return \Magento\Framework\App\ResponseInterface|\Magento\Framework\Controller\ResultInterface|void
+     */
     public function execute()
     {
         // Empty method stub for test
diff --git a/app/code/Magento/Cookie/Test/Unit/Helper/CookieTest.php b/app/code/Magento/Cookie/Test/Unit/Helper/CookieTest.php
index 89228b0e6e724..130534f2395b4 100644
--- a/app/code/Magento/Cookie/Test/Unit/Helper/CookieTest.php
+++ b/app/code/Magento/Cookie/Test/Unit/Helper/CookieTest.php
@@ -87,6 +87,9 @@ public function testGetCookieRestrictionLifetime()
         $this->assertEquals($this->_object->getCookieRestrictionLifetime(), 60 * 60 * 24 * 365);
     }
 
+    /**
+     * @return $this
+     */
     protected function _initMock()
     {
         $scopeConfig = $this->_getConfigStub();
diff --git a/app/code/Magento/CurrencySymbol/Test/Unit/Model/System/CurrencysymbolTest.php b/app/code/Magento/CurrencySymbol/Test/Unit/Model/System/CurrencysymbolTest.php
index 4cab467c4713c..0e5f4a022e99a 100644
--- a/app/code/Magento/CurrencySymbol/Test/Unit/Model/System/CurrencysymbolTest.php
+++ b/app/code/Magento/CurrencySymbol/Test/Unit/Model/System/CurrencysymbolTest.php
@@ -245,6 +245,9 @@ public function testGetCurrencySymbol($code, $expectedSymbol, $serializedCustomS
         $this->assertEquals($expectedSymbol, $currencySymbol);
     }
 
+    /**
+     * @return array
+     */
     public function getCurrencySymbolDataProvider()
     {
         return [
diff --git a/app/code/Magento/Customer/Test/Unit/Block/Account/CustomerTest.php b/app/code/Magento/Customer/Test/Unit/Block/Account/CustomerTest.php
index aaee7b0f0ead4..fade544aaddac 100644
--- a/app/code/Magento/Customer/Test/Unit/Block/Account/CustomerTest.php
+++ b/app/code/Magento/Customer/Test/Unit/Block/Account/CustomerTest.php
@@ -22,6 +22,9 @@ protected function setUp()
             ->getObject('\Magento\Customer\Block\Account\Customer', ['httpContext' => $this->httpContext]);
     }
 
+    /**
+     * @return array
+     */
     public function customerLoggedInDataProvider()
     {
         return [
diff --git a/app/code/Magento/Customer/Test/Unit/Block/Account/Dashboard/InfoTest.php b/app/code/Magento/Customer/Test/Unit/Block/Account/Dashboard/InfoTest.php
index 4c164e4643372..42c780c039875 100644
--- a/app/code/Magento/Customer/Test/Unit/Block/Account/Dashboard/InfoTest.php
+++ b/app/code/Magento/Customer/Test/Unit/Block/Account/Dashboard/InfoTest.php
@@ -215,6 +215,9 @@ public function testIsNewsletterEnabled($isNewsletterEnabled, $expectedValue)
         $this->assertEquals($expectedValue, $this->_block->isNewsletterEnabled());
     }
 
+    /**
+     * @return array
+     */
     public function isNewsletterEnabledProvider()
     {
         return [[true, true], [false, false]];
diff --git a/app/code/Magento/Customer/Test/Unit/Block/Adminhtml/Edit/Tab/View/Grid/Renderer/ItemTest.php b/app/code/Magento/Customer/Test/Unit/Block/Adminhtml/Edit/Tab/View/Grid/Renderer/ItemTest.php
index f7b8cb34ccf86..8c088892c0e1d 100644
--- a/app/code/Magento/Customer/Test/Unit/Block/Adminhtml/Edit/Tab/View/Grid/Renderer/ItemTest.php
+++ b/app/code/Magento/Customer/Test/Unit/Block/Adminhtml/Edit/Tab/View/Grid/Renderer/ItemTest.php
@@ -14,6 +14,10 @@ class ItemTest extends \PHPUnit_Framework_TestCase
     /** @var  \Magento\Customer\Block\Adminhtml\Edit\Tab\View\Grid\Renderer\Item */
     protected $itemBlock;
 
+    /**
+     * @param $amountOption
+     * @param bool $withoutOptions
+     */
     public function configure($amountOption, $withoutOptions = false)
     {
         $options = [];
@@ -109,6 +113,9 @@ public function testRender($amountOption, $expectedHtml)
         $this->assertXmlStringEqualsXmlString($expectedHtml, $realHtml);
     }
 
+    /**
+     * @return array
+     */
     public function optionHtmlProvider()
     {
         return [
diff --git a/app/code/Magento/Customer/Test/Unit/Block/Widget/NameTest.php b/app/code/Magento/Customer/Test/Unit/Block/Widget/NameTest.php
index 1b039360ce88a..013d0d2a71f99 100644
--- a/app/code/Magento/Customer/Test/Unit/Block/Widget/NameTest.php
+++ b/app/code/Magento/Customer/Test/Unit/Block/Widget/NameTest.php
@@ -157,6 +157,9 @@ public function testMethodWithNoSuchEntityException($method)
         $this->assertFalse($this->_block->{$method}());
     }
 
+    /**
+     * @return array
+     */
     public function methodDataProvider()
     {
         return [
diff --git a/app/code/Magento/Customer/Test/Unit/Controller/Account/CreatePostTest.php b/app/code/Magento/Customer/Test/Unit/Controller/Account/CreatePostTest.php
index 252b449fec82d..aaffc9d9dd861 100644
--- a/app/code/Magento/Customer/Test/Unit/Controller/Account/CreatePostTest.php
+++ b/app/code/Magento/Customer/Test/Unit/Controller/Account/CreatePostTest.php
@@ -542,6 +542,9 @@ public function testSuccessRedirect(
         $this->model->execute();
     }
 
+    /**
+     * @return array
+     */
     public function getSuccessRedirectDataProvider()
     {
         return [
diff --git a/app/code/Magento/Customer/Test/Unit/Controller/Address/FormPostTest.php b/app/code/Magento/Customer/Test/Unit/Controller/Address/FormPostTest.php
index 4bd5f582a157f..82e25c8aeb0b7 100644
--- a/app/code/Magento/Customer/Test/Unit/Controller/Address/FormPostTest.php
+++ b/app/code/Magento/Customer/Test/Unit/Controller/Address/FormPostTest.php
@@ -577,6 +577,9 @@ public function testExecute(
         $this->assertEquals($this->resultRedirect, $this->model->execute());
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderTestExecute()
     {
         return [
diff --git a/app/code/Magento/Customer/Test/Unit/Controller/Adminhtml/Index/InlineEditTest.php b/app/code/Magento/Customer/Test/Unit/Controller/Adminhtml/Index/InlineEditTest.php
index fdff8e47b284d..c288725ccdf76 100644
--- a/app/code/Magento/Customer/Test/Unit/Controller/Adminhtml/Index/InlineEditTest.php
+++ b/app/code/Magento/Customer/Test/Unit/Controller/Adminhtml/Index/InlineEditTest.php
@@ -169,6 +169,9 @@ protected function setUp()
         ];
     }
 
+    /**
+     * @param int $populateSequence
+     */
     protected function prepareMocksForTesting($populateSequence = 0)
     {
         $this->resultJsonFactory->expects($this->once())
diff --git a/app/code/Magento/Customer/Test/Unit/Controller/Plugin/AccountTest.php b/app/code/Magento/Customer/Test/Unit/Controller/Plugin/AccountTest.php
index 2a4ea8a0237b7..afc3c3108735c 100644
--- a/app/code/Magento/Customer/Test/Unit/Controller/Plugin/AccountTest.php
+++ b/app/code/Magento/Customer/Test/Unit/Controller/Plugin/AccountTest.php
@@ -132,6 +132,9 @@ public function testAroundDispatch(
         );
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderAroundDispatch()
     {
         return [
diff --git a/app/code/Magento/Customer/Test/Unit/CustomerData/Plugin/SessionCheckerTest.php b/app/code/Magento/Customer/Test/Unit/CustomerData/Plugin/SessionCheckerTest.php
index 30d79be4b6d0d..750ad569735c8 100644
--- a/app/code/Magento/Customer/Test/Unit/CustomerData/Plugin/SessionCheckerTest.php
+++ b/app/code/Magento/Customer/Test/Unit/CustomerData/Plugin/SessionCheckerTest.php
@@ -86,6 +86,9 @@ public function testBeforeStart($result, $callCount)
         $this->plugin->beforeStart($this->sessionManager);
     }
 
+    /**
+     * @return array
+     */
     public function testBeforeStartDataProvider()
     {
         return [
diff --git a/app/code/Magento/Customer/Test/Unit/Helper/AddressTest.php b/app/code/Magento/Customer/Test/Unit/Helper/AddressTest.php
index 739c58f90548a..d2cfb13e201d7 100644
--- a/app/code/Magento/Customer/Test/Unit/Helper/AddressTest.php
+++ b/app/code/Magento/Customer/Test/Unit/Helper/AddressTest.php
@@ -75,6 +75,9 @@ public function testGetStreetLines($numLines, $expectedNumLines)
         $this->assertEquals($expectedNumLines, $this->helper->getStreetLines());
     }
 
+    /**
+     * @return array
+     */
     public function providerGetStreetLines()
     {
         return [
@@ -174,6 +177,9 @@ public function testGetAttributeValidationClass($attrCode, $attrClass, $customAt
         $this->assertEquals($result, $this->helper->getAttributeValidationClass($attrCode));
     }
 
+    /**
+     * @return array
+     */
     public function getAttributeValidationClassDataProvider()
     {
         return [
@@ -193,6 +199,9 @@ public function testConvertStreetLines($origStreets, $toCount, $result)
         $this->assertEquals($result, $this->helper->convertStreetLines($origStreets, $toCount));
     }
 
+    /**
+     * @return array
+     */
     public function getConvertStreetLinesDataProvider()
     {
         return [
@@ -331,6 +340,9 @@ public function testGetFormatTypeRenderer($code, $result)
         $this->assertEquals($result, $this->helper->getFormatTypeRenderer($code));
     }
 
+    /**
+     * @return array
+     */
     public function getFormatTypeRendererDataProvider()
     {
         $renderer = $this->getMockBuilder('Magento\Customer\Block\Address\Renderer\RendererInterface')
@@ -365,6 +377,9 @@ public function testGetFormat($code, $result)
         $this->assertEquals($result, $this->helper->getFormat($code));
     }
 
+    /**
+     * @return array
+     */
     public function getFormatDataProvider()
     {
         return [
diff --git a/app/code/Magento/Customer/Test/Unit/Model/Address/Config/XsdTest.php b/app/code/Magento/Customer/Test/Unit/Model/Address/Config/XsdTest.php
index 4f9cf8ab2921b..75a1981efdb69 100644
--- a/app/code/Magento/Customer/Test/Unit/Model/Address/Config/XsdTest.php
+++ b/app/code/Magento/Customer/Test/Unit/Model/Address/Config/XsdTest.php
@@ -39,6 +39,9 @@ public function testExemplarXml($fixtureXml, array $expectedErrors)
         $this->assertEquals($expectedErrors, $actualErrors);
     }
 
+    /**
+     * @return array
+     */
     public function exemplarXmlDataProvider()
     {
         return [
diff --git a/app/code/Magento/Customer/Test/Unit/Model/AuthenticationTest.php b/app/code/Magento/Customer/Test/Unit/Model/AuthenticationTest.php
index 0aedf288a6b7c..ee1a3f6d7713a 100644
--- a/app/code/Magento/Customer/Test/Unit/Model/AuthenticationTest.php
+++ b/app/code/Magento/Customer/Test/Unit/Model/AuthenticationTest.php
@@ -207,6 +207,9 @@ public function testProcessAuthenticationFailureFirstAttempt(
         $this->authentication->processAuthenticationFailure($customerId);
     }
 
+    /**
+     * @return array
+     */
     public function processAuthenticationFailureDataProvider()
     {
         return [
diff --git a/app/code/Magento/Customer/Test/Unit/Model/Customer/Attribute/Backend/PasswordTest.php b/app/code/Magento/Customer/Test/Unit/Model/Customer/Attribute/Backend/PasswordTest.php
index 06d12afae9095..f0725efcd44ef 100644
--- a/app/code/Magento/Customer/Test/Unit/Model/Customer/Attribute/Backend/PasswordTest.php
+++ b/app/code/Magento/Customer/Test/Unit/Model/Customer/Attribute/Backend/PasswordTest.php
@@ -39,6 +39,9 @@ public function testValidatePositive()
         $this->assertTrue($this->testable->validate($object));
     }
 
+    /**
+     * @return array
+     */
     public function passwordNegativeDataProvider()
     {
         return [
diff --git a/app/code/Magento/Customer/Test/Unit/Model/FileProcessorTest.php b/app/code/Magento/Customer/Test/Unit/Model/FileProcessorTest.php
index 6598658f1142e..8492c3258efa0 100644
--- a/app/code/Magento/Customer/Test/Unit/Model/FileProcessorTest.php
+++ b/app/code/Magento/Customer/Test/Unit/Model/FileProcessorTest.php
@@ -71,6 +71,11 @@ protected function setUp()
             ->getMock();
     }
 
+    /**
+     * @param $entityTypeCode
+     * @param array $allowedExtensions
+     * @return FileProcessor
+     */
     private function getModel($entityTypeCode, array $allowedExtensions = [])
     {
         $model = new FileProcessor(
diff --git a/app/code/Magento/Customer/Test/Unit/Model/Metadata/Form/AbstractDataTest.php b/app/code/Magento/Customer/Test/Unit/Model/Metadata/Form/AbstractDataTest.php
index c7f338a298134..d5787c7d12490 100644
--- a/app/code/Magento/Customer/Test/Unit/Model/Metadata/Form/AbstractDataTest.php
+++ b/app/code/Magento/Customer/Test/Unit/Model/Metadata/Form/AbstractDataTest.php
@@ -91,6 +91,9 @@ public function testSetRequestScopeOnly($bool)
         $this->assertSame($bool, $this->_model->isRequestScopeOnly());
     }
 
+    /**
+     * @return array
+     */
     public function trueFalseDataProvider()
     {
         return [[true], [false]];
@@ -119,6 +122,9 @@ public function testApplyInputFilter($input, $output, $filter)
         $this->assertEquals($output, $this->_model->applyInputFilter($input));
     }
 
+    /**
+     * @return array
+     */
     public function applyInputFilterProvider()
     {
         return [
@@ -157,6 +163,9 @@ public function testDateFilterFormat($format, $output)
         $this->assertEquals($output, $actual);
     }
 
+    /**
+     * @return array
+     */
     public function dateFilterFormatProvider()
     {
         return [[null, 'Whatever I put'], [false, self::MODEL], ['something else', self::MODEL]];
@@ -228,6 +237,9 @@ public function testValidateInputRule($value, $label, $inputValidation, $expecte
         $this->assertEquals($expectedOutput, $this->_model->validateInputRule($value));
     }
 
+    /**
+     * @return array
+     */
     public function validateInputRuleDataProvider()
     {
         return [
@@ -316,6 +328,9 @@ public function testGetRequestValue($request, $attributeCode, $requestScope, $re
         $this->assertEquals($expectedValue, $this->_model->getRequestValue($request));
     }
 
+    /**
+     * @return array
+     */
     public function getRequestValueDataProvider()
     {
         $expectedValue = 'EXPECTED_VALUE';
diff --git a/app/code/Magento/Customer/Test/Unit/Model/Metadata/Form/BooleanTest.php b/app/code/Magento/Customer/Test/Unit/Model/Metadata/Form/BooleanTest.php
index 4315340d65bff..d9f101b922cc8 100644
--- a/app/code/Magento/Customer/Test/Unit/Model/Metadata/Form/BooleanTest.php
+++ b/app/code/Magento/Customer/Test/Unit/Model/Metadata/Form/BooleanTest.php
@@ -28,6 +28,9 @@ public function testGetOptionText($value, $expected)
         $this->assertSame($expected, (string)$boolean->outputValue());
     }
 
+    /**
+     * @return array
+     */
     public function getOptionTextDataProvider()
     {
         return [
diff --git a/app/code/Magento/Customer/Test/Unit/Model/Metadata/Form/DateTest.php b/app/code/Magento/Customer/Test/Unit/Model/Metadata/Form/DateTest.php
index 96e5b3bb20354..cbe78b6696ca9 100644
--- a/app/code/Magento/Customer/Test/Unit/Model/Metadata/Form/DateTest.php
+++ b/app/code/Magento/Customer/Test/Unit/Model/Metadata/Form/DateTest.php
@@ -113,6 +113,9 @@ public function testValidateValue($value, $validation, $required, $expected)
         $this->assertEquals($expected, $actual);
     }
 
+    /**
+     * @return array
+     */
     public function validateValueDataProvider()
     {
         return [
@@ -164,6 +167,9 @@ public function testCompactValue($value, $expected)
         $this->assertSame($expected, $this->date->compactValue($value));
     }
 
+    /**
+     * @return array
+     */
     public function compactAndRestoreValueDataProvider()
     {
         return [
diff --git a/app/code/Magento/Customer/Test/Unit/Model/Metadata/Form/FileTest.php b/app/code/Magento/Customer/Test/Unit/Model/Metadata/Form/FileTest.php
index e009aaf0be049..57b6c366d94d8 100644
--- a/app/code/Magento/Customer/Test/Unit/Model/Metadata/Form/FileTest.php
+++ b/app/code/Magento/Customer/Test/Unit/Model/Metadata/Form/FileTest.php
@@ -101,6 +101,9 @@ public function testExtractValueNoRequestScope($expected, $attributeCode = '', $
         }
     }
 
+    /**
+     * @return array
+     */
     public function extractValueNoRequestScopeDataProvider()
     {
         return [
@@ -161,6 +164,9 @@ public function testExtractValueWithRequestScope($expected, $requestScope, $main
         }
     }
 
+    /**
+     * @return array
+     */
     public function extractValueWithRequestScopeDataProvider()
     {
         return [
@@ -211,6 +217,9 @@ public function testValidateValueNotToUpload($expected, $value, $isAjax = false,
         $this->assertEquals($expected, $model->validateValue($value));
     }
 
+    /**
+     * @return array
+     */
     public function validateValueNotToUploadDataProvider()
     {
         return [
@@ -268,6 +277,9 @@ public function testValidateValueToUpload($expected, $value, $parameters = [])
         $this->assertEquals($expected, $model->validateValue($value));
     }
 
+    /**
+     * @return array
+     */
     public function validateValueToUploadDataProvider()
     {
         return [
@@ -408,6 +420,9 @@ public function testOutputValueNonJson($format)
         $this->assertSame('', $model->outputValue($format));
     }
 
+    /**
+     * @return array
+     */
     public function outputValueDataProvider()
     {
         return [
diff --git a/app/code/Magento/Customer/Test/Unit/Model/Metadata/Form/MultilineTest.php b/app/code/Magento/Customer/Test/Unit/Model/Metadata/Form/MultilineTest.php
index 25f10d7bb93c6..e74ddebdb597b 100644
--- a/app/code/Magento/Customer/Test/Unit/Model/Metadata/Form/MultilineTest.php
+++ b/app/code/Magento/Customer/Test/Unit/Model/Metadata/Form/MultilineTest.php
@@ -42,6 +42,9 @@ public function testValidateValueRequired($value, $expected)
         parent::testValidateValueRequired($value, $expected);
     }
 
+    /**
+     * @return array
+     */
     public function validateValueRequiredDataProvider()
     {
         return array_merge(
@@ -66,6 +69,9 @@ public function testValidateValueLength($value, $expected)
         parent::testValidateValueLength($value, $expected);
     }
 
+    /**
+     * @return array
+     */
     public function validateValueLengthDataProvider()
     {
         return array_merge(
diff --git a/app/code/Magento/Customer/Test/Unit/Model/Metadata/Form/SelectTest.php b/app/code/Magento/Customer/Test/Unit/Model/Metadata/Form/SelectTest.php
index 995b3cabaf9da..bfd95ac6a80cb 100644
--- a/app/code/Magento/Customer/Test/Unit/Model/Metadata/Form/SelectTest.php
+++ b/app/code/Magento/Customer/Test/Unit/Model/Metadata/Form/SelectTest.php
@@ -42,6 +42,9 @@ public function testValidateValue($value, $expected)
         $this->assertEquals($expected, $actual);
     }
 
+    /**
+     * @return array
+     */
     public function validateValueDataProvider()
     {
         return [
@@ -74,6 +77,9 @@ public function testValidateValueRequired($value, $expected)
         }
     }
 
+    /**
+     * @return array
+     */
     public function validateValueRequiredDataProvider()
     {
         return [
@@ -145,6 +151,9 @@ public function testOutputValue($value, $expected)
         $this->assertEquals($expected, $actual);
     }
 
+    /**
+     * @return array
+     */
     public function outputValueDataProvider()
     {
         return [
diff --git a/app/code/Magento/Customer/Test/Unit/Model/Metadata/Form/TextTest.php b/app/code/Magento/Customer/Test/Unit/Model/Metadata/Form/TextTest.php
index 61c0c02f2b42d..0d2c47b7f6119 100644
--- a/app/code/Magento/Customer/Test/Unit/Model/Metadata/Form/TextTest.php
+++ b/app/code/Magento/Customer/Test/Unit/Model/Metadata/Form/TextTest.php
@@ -52,6 +52,9 @@ public function testValidateValue($value, $expected)
         $this->assertEquals($expected, $actual);
     }
 
+    /**
+     * @return array
+     */
     public function validateValueDataProvider()
     {
         return [
@@ -84,6 +87,9 @@ public function testValidateValueRequired($value, $expected)
         }
     }
 
+    /**
+     * @return array
+     */
     public function validateValueRequiredDataProvider()
     {
         return [
@@ -150,6 +156,9 @@ public function testValidateValueLength($value, $expected)
         }
     }
 
+    /**
+     * @return array
+     */
     public function validateValueLengthDataProvider()
     {
         return [
diff --git a/app/code/Magento/Customer/Test/Unit/Model/Metadata/ValidatorTest.php b/app/code/Magento/Customer/Test/Unit/Model/Metadata/ValidatorTest.php
index ce0622e0cb9e7..4f8e8923ec236 100644
--- a/app/code/Magento/Customer/Test/Unit/Model/Metadata/ValidatorTest.php
+++ b/app/code/Magento/Customer/Test/Unit/Model/Metadata/ValidatorTest.php
@@ -79,6 +79,9 @@ public function testIsValid($isValid)
         $this->assertEquals($isValid, $this->validator->isValid(new \Magento\Framework\DataObject($data)));
     }
 
+    /**
+     * @return array
+     */
     public function trueFalseDataProvider()
     {
         return [[true], [false]];
diff --git a/app/code/Magento/Customer/Test/Unit/Model/Renderer/RegionTest.php b/app/code/Magento/Customer/Test/Unit/Model/Renderer/RegionTest.php
index 57e3f977b12c6..4c963d66f1f76 100644
--- a/app/code/Magento/Customer/Test/Unit/Model/Renderer/RegionTest.php
+++ b/app/code/Magento/Customer/Test/Unit/Model/Renderer/RegionTest.php
@@ -110,6 +110,9 @@ public function testRender($regionCollection)
         $this->assertContains('required-entry', $html);
     }
 
+    /**
+     * @return array
+     */
     public function renderDataProvider()
     {
         return [
diff --git a/app/code/Magento/Customer/Test/Unit/Model/ResourceModel/AddressTest.php b/app/code/Magento/Customer/Test/Unit/Model/ResourceModel/AddressTest.php
index 751bc0b43bb9b..960f579c706f5 100644
--- a/app/code/Magento/Customer/Test/Unit/Model/ResourceModel/AddressTest.php
+++ b/app/code/Magento/Customer/Test/Unit/Model/ResourceModel/AddressTest.php
@@ -269,6 +269,9 @@ protected function prepareValidatorFactory()
         return $validatorFactory;
     }
 
+    /**
+     * @return \Magento\Customer\Model\CustomerFactory|\PHPUnit_Framework_MockObject_MockObject
+     */
     protected function prepareCustomerFactory()
     {
         $this->customerFactory = $this->getMock('Magento\Customer\Model\CustomerFactory', ['create'], [], '', false);
@@ -290,16 +293,26 @@ class SubResourceModelAddress extends \Magento\Customer\Model\ResourceModel\Addr
 {
     protected $attributeLoader;
 
+    /**
+     * @param null $object
+     * @return \Magento\Customer\Model\ResourceModel\Address|\Magento\Eav\Model\Entity\AbstractEntity
+     */
     public function loadAllAttributes($object = null)
     {
         return $this->getAttributeLoader()->loadAllAttributes($this, $object);
     }
 
+    /**
+     * @param $attributeLoader
+     */
     public function setAttributeLoader($attributeLoader)
     {
         $this->attributeLoader = $attributeLoader;
     }
 
+    /**
+     * @return \Magento\Eav\Model\Entity\AttributeLoaderInterface
+     */
     protected function getAttributeLoader()
     {
         return $this->attributeLoader;
diff --git a/app/code/Magento/Customer/Test/Unit/Model/ResourceModel/Group/Grid/ServiceCollectionTest.php b/app/code/Magento/Customer/Test/Unit/Model/ResourceModel/Group/Grid/ServiceCollectionTest.php
index 4e9ecd07aee77..063c69e6464bf 100644
--- a/app/code/Magento/Customer/Test/Unit/Model/ResourceModel/Group/Grid/ServiceCollectionTest.php
+++ b/app/code/Magento/Customer/Test/Unit/Model/ResourceModel/Group/Grid/ServiceCollectionTest.php
@@ -227,6 +227,9 @@ public function testAddFieldToFilterInconsistentArrays($fields, $conditions)
         $this->serviceCollection->addFieldToFilter($fields, $conditions);
     }
 
+    /**
+     * @return array
+     */
     public function addFieldToFilterInconsistentArraysDataProvider()
     {
         return [
diff --git a/app/code/Magento/Customer/Test/Unit/Observer/AfterAddressSaveObserverTest.php b/app/code/Magento/Customer/Test/Unit/Observer/AfterAddressSaveObserverTest.php
index 8489a5d8c972e..371de2b7e644b 100644
--- a/app/code/Magento/Customer/Test/Unit/Observer/AfterAddressSaveObserverTest.php
+++ b/app/code/Magento/Customer/Test/Unit/Observer/AfterAddressSaveObserverTest.php
@@ -389,6 +389,9 @@ public function testAfterAddressSaveDefaultGroup(
         $this->model->execute($observer);
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderAfterAddressSaveDefaultGroup()
     {
         return [
@@ -578,6 +581,9 @@ public function testAfterAddressSaveNewGroup(
         $this->model->execute($observer);
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderAfterAddressSaveNewGroup()
     {
         return [
diff --git a/app/code/Magento/Developer/Test/Unit/Helper/DataTest.php b/app/code/Magento/Developer/Test/Unit/Helper/DataTest.php
index 8f263401e5764..7eed491d0c19b 100644
--- a/app/code/Magento/Developer/Test/Unit/Helper/DataTest.php
+++ b/app/code/Magento/Developer/Test/Unit/Helper/DataTest.php
@@ -68,6 +68,9 @@ public function testIsDevAllowed($allowedIps, $expected, $callNum = 1)
         $this->assertEquals($expected, $this->helper->isDevAllowed($storeId));
     }
 
+    /**
+     * @return array
+     */
     public function isDevAllowedDataProvider()
     {
         return [
diff --git a/app/code/Magento/Developer/Test/Unit/Model/TemplateEngine/Decorator/DebugHintsTest.php b/app/code/Magento/Developer/Test/Unit/Model/TemplateEngine/Decorator/DebugHintsTest.php
index fa5c3044bd09d..edb6651520d8d 100644
--- a/app/code/Magento/Developer/Test/Unit/Model/TemplateEngine/Decorator/DebugHintsTest.php
+++ b/app/code/Magento/Developer/Test/Unit/Model/TemplateEngine/Decorator/DebugHintsTest.php
@@ -33,6 +33,9 @@ public function testRender($showBlockHints)
         $this->assertSelectEquals('div > div[title="TestBlock"]', 'TestBlock', (int)$showBlockHints, $actualResult);
     }
 
+    /**
+     * @return array
+     */
     public function renderDataProvider()
     {
         return ['block hints disabled' => [false], 'block hints enabled' => [true]];
diff --git a/app/code/Magento/Directory/Test/Unit/Model/Currency/Import/ConfigTest.php b/app/code/Magento/Directory/Test/Unit/Model/Currency/Import/ConfigTest.php
index c70e7ed3a1159..93e8a13e11276 100644
--- a/app/code/Magento/Directory/Test/Unit/Model/Currency/Import/ConfigTest.php
+++ b/app/code/Magento/Directory/Test/Unit/Model/Currency/Import/ConfigTest.php
@@ -33,6 +33,9 @@ public function testConstructorException(array $configData, $expectedException)
         new \Magento\Directory\Model\Currency\Import\Config($configData);
     }
 
+    /**
+     * @return array
+     */
     public function constructorExceptionDataProvider()
     {
         return [
@@ -78,6 +81,9 @@ public function testGetServiceClass($serviceName, $expectedResult)
         $this->assertEquals($expectedResult, $this->_model->getServiceClass($serviceName));
     }
 
+    /**
+     * @return array
+     */
     public function getServiceClassDataProvider()
     {
         return ['known' => ['service_one', 'Service_One'], 'unknown' => ['unknown', null]];
@@ -93,6 +99,9 @@ public function testGetServiceLabel($serviceName, $expectedResult)
         $this->assertEquals($expectedResult, $this->_model->getServiceLabel($serviceName));
     }
 
+    /**
+     * @return array
+     */
     public function getServiceLabelDataProvider()
     {
         return ['known' => ['service_one', 'Service One'], 'unknown' => ['unknown', null]];
diff --git a/app/code/Magento/Directory/Test/Unit/Model/PriceCurrencyTest.php b/app/code/Magento/Directory/Test/Unit/Model/PriceCurrencyTest.php
index 930426c3b1b42..9a199a9fda33a 100644
--- a/app/code/Magento/Directory/Test/Unit/Model/PriceCurrencyTest.php
+++ b/app/code/Magento/Directory/Test/Unit/Model/PriceCurrencyTest.php
@@ -180,6 +180,9 @@ public function testGetCurrencySymbol()
         $this->assertEquals($currencySymbol, $this->priceCurrency->getCurrencySymbol($storeId, $currencyMock));
     }
 
+    /**
+     * @return \PHPUnit_Framework_MockObject_MockObject
+     */
     protected function getCurrentCurrencyMock()
     {
         $currency = $this->getMockBuilder('Magento\Directory\Model\Currency')
@@ -189,6 +192,10 @@ protected function getCurrentCurrencyMock()
         return $currency;
     }
 
+    /**
+     * @param $baseCurrency
+     * @return \PHPUnit_Framework_MockObject_MockObject
+     */
     protected function getStoreMock($baseCurrency)
     {
         $store = $this->getMockBuilder('Magento\Store\Model\Store')
@@ -202,6 +209,12 @@ protected function getStoreMock($baseCurrency)
         return $store;
     }
 
+    /**
+     * @param $amount
+     * @param $convertedAmount
+     * @param $currency
+     * @return \PHPUnit_Framework_MockObject_MockObject
+     */
     protected function getBaseCurrencyMock($amount, $convertedAmount, $currency)
     {
         $baseCurrency = $this->getMockBuilder('Magento\Directory\Model\Currency')
diff --git a/app/code/Magento/Downloadable/Test/Unit/Block/Catalog/Product/LinksTest.php b/app/code/Magento/Downloadable/Test/Unit/Block/Catalog/Product/LinksTest.php
index f5b8fba57783b..f29a46d14111a 100644
--- a/app/code/Magento/Downloadable/Test/Unit/Block/Catalog/Product/LinksTest.php
+++ b/app/code/Magento/Downloadable/Test/Unit/Block/Catalog/Product/LinksTest.php
@@ -154,6 +154,11 @@ public function testGetJsonConfig()
         $this->assertEquals(json_encode($config), $encodedJsonConfig);
     }
 
+    /**
+     * @param $linkPrice
+     * @param $linkId
+     * @return mixed
+     */
     protected function getLinkMock($linkPrice, $linkId)
     {
         $linkMock = $this->getMock('Magento\Downloadable\Model\Link', ['getPrice', 'getId', '__wakeup'], [], '', false);
diff --git a/app/code/Magento/Downloadable/Test/Unit/Controller/Adminhtml/Product/Initialization/Helper/Plugin/DownloadableTest.php b/app/code/Magento/Downloadable/Test/Unit/Controller/Adminhtml/Product/Initialization/Helper/Plugin/DownloadableTest.php
index 72056e7f99ae9..f1f0fbfadf525 100644
--- a/app/code/Magento/Downloadable/Test/Unit/Controller/Adminhtml/Product/Initialization/Helper/Plugin/DownloadableTest.php
+++ b/app/code/Magento/Downloadable/Test/Unit/Controller/Adminhtml/Product/Initialization/Helper/Plugin/DownloadableTest.php
@@ -123,6 +123,9 @@ public function testAfterInitializeWithNoDataToSave($downloadable)
         $this->downloadablePlugin->afterInitialize($this->subjectMock, $this->productMock);
     }
 
+    /**
+     * @return array
+     */
     public function afterInitializeWithEmptyDataDataProvider()
     {
         return [
diff --git a/app/code/Magento/Downloadable/Test/Unit/Helper/DownloadTest.php b/app/code/Magento/Downloadable/Test/Unit/Helper/DownloadTest.php
index 382bb26111d19..c75c3abeb8df6 100644
--- a/app/code/Magento/Downloadable/Test/Unit/Helper/DownloadTest.php
+++ b/app/code/Magento/Downloadable/Test/Unit/Helper/DownloadTest.php
@@ -162,6 +162,9 @@ public function testGetContentTypeThroughHelper($functionExistsResult, $mimeCont
         $this->assertEquals(self::MIME_TYPE, $this->_helper->getContentType());
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderForTestGetContentTypeThroughHelper()
     {
         return [[false, ''], [true, false]];
@@ -194,6 +197,11 @@ public function testGetFileNameUrlWithContentDisposition()
         $this->assertEquals($fileName, $this->_helper->getFilename());
     }
 
+    /**
+     * @param bool $doesExist
+     * @param int $size
+     * @param string $path
+     */
     protected function _setupFileMocks($doesExist = true, $size = self::FILE_SIZE, $path = self::FILE_PATH)
     {
         $this->_handleMock->expects($this->any())->method('stat')->will($this->returnValue(['size' => $size]));
@@ -206,6 +214,11 @@ protected function _setupFileMocks($doesExist = true, $size = self::FILE_SIZE, $
         $this->_helper->setResource($path, DownloadHelper::LINK_TYPE_FILE);
     }
 
+    /**
+     * @param int $size
+     * @param string $url
+     * @param array $additionalStatData
+     */
     protected function _setupUrlMocks($size = self::FILE_SIZE, $url = self::URL, $additionalStatData = [])
     {
         $this->_handleMock->expects(
diff --git a/app/code/Magento/Downloadable/Test/Unit/Model/LinkRepositoryTest.php b/app/code/Magento/Downloadable/Test/Unit/Model/LinkRepositoryTest.php
index bf50b98c37bd4..a97acd2344666 100644
--- a/app/code/Magento/Downloadable/Test/Unit/Model/LinkRepositoryTest.php
+++ b/app/code/Magento/Downloadable/Test/Unit/Model/LinkRepositoryTest.php
@@ -576,6 +576,10 @@ public function testGetList()
         $this->assertEquals([$linkInterfaceMock], $this->service->getList($productSku));
     }
 
+    /**
+     * @param $resource
+     * @param $inputData
+     */
     protected function setLinkAssertions($resource, $inputData)
     {
         $resource->expects($this->any())->method('getId')->will($this->returnValue($inputData['id']));
diff --git a/app/code/Magento/Downloadable/Test/Unit/Observer/SetLinkStatusObserverTest.php b/app/code/Magento/Downloadable/Test/Unit/Observer/SetLinkStatusObserverTest.php
index 6f89b4a9718f2..5528cf6c41926 100644
--- a/app/code/Magento/Downloadable/Test/Unit/Observer/SetLinkStatusObserverTest.php
+++ b/app/code/Magento/Downloadable/Test/Unit/Observer/SetLinkStatusObserverTest.php
@@ -101,6 +101,9 @@ protected function setUp()
         );
     }
 
+    /**
+     * @return array
+     */
     public function setLinkStatusPendingDataProvider()
     {
         return [
diff --git a/app/code/Magento/Downloadable/Test/Unit/_files/download_mock.php b/app/code/Magento/Downloadable/Test/Unit/_files/download_mock.php
index 467e1f428206b..e634f0ffa341d 100644
--- a/app/code/Magento/Downloadable/Test/Unit/_files/download_mock.php
+++ b/app/code/Magento/Downloadable/Test/Unit/_files/download_mock.php
@@ -7,11 +7,17 @@
 
 use Magento\Downloadable\Test\Unit\Helper\DownloadTest;
 
+/**
+ * @return bool
+ */
 function function_exists()
 {
     return DownloadTest::$functionExists;
 }
 
+/**
+ * @return string
+ */
 function mime_content_type()
 {
     return DownloadTest::$mimeContentType;
diff --git a/app/code/Magento/Eav/Test/Unit/Model/AttributeFactoryTest.php b/app/code/Magento/Eav/Test/Unit/Model/AttributeFactoryTest.php
index 83a28ed28c96b..2be119dd4f86b 100644
--- a/app/code/Magento/Eav/Test/Unit/Model/AttributeFactoryTest.php
+++ b/app/code/Magento/Eav/Test/Unit/Model/AttributeFactoryTest.php
@@ -50,6 +50,11 @@ public function testCreateAttribute()
         $this->assertEquals($this->_className, $this->_factory->createAttribute($this->_className, $this->_arguments));
     }
 
+    /**
+     * @param $className
+     * @param $arguments
+     * @return mixed
+     */
     public function getModelInstance($className, $arguments)
     {
         $this->assertInternalType('array', $arguments);
diff --git a/app/code/Magento/Eav/Test/Unit/Model/Entity/AbstractEntityTest.php b/app/code/Magento/Eav/Test/Unit/Model/Entity/AbstractEntityTest.php
index 075e7fcfcdd91..9870b57a0fa8a 100644
--- a/app/code/Magento/Eav/Test/Unit/Model/Entity/AbstractEntityTest.php
+++ b/app/code/Magento/Eav/Test/Unit/Model/Entity/AbstractEntityTest.php
@@ -53,6 +53,9 @@ public function testCompareAttributes($attribute1Sort, $attribute2Sort, $expecte
         $this->assertEquals($expected, $this->_model->attributesCompare($attribute1, $attribute2));
     }
 
+    /**
+     * @return array
+     */
     public static function compareAttributesDataProvider()
     {
         return [
@@ -328,6 +331,9 @@ function ($entityType, $attributeCode) use ($attributes) {
         $model->save($object);
     }
 
+    /**
+     * @return array
+     */
     public function productAttributesDataProvider()
     {
         $attributeSetId = 10;
diff --git a/app/code/Magento/Eav/Test/Unit/Model/Entity/Attribute/Backend/ArrayBackendTest.php b/app/code/Magento/Eav/Test/Unit/Model/Entity/Attribute/Backend/ArrayBackendTest.php
index 79d8cc5e727df..cfb5321ffdc8b 100644
--- a/app/code/Magento/Eav/Test/Unit/Model/Entity/Attribute/Backend/ArrayBackendTest.php
+++ b/app/code/Magento/Eav/Test/Unit/Model/Entity/Attribute/Backend/ArrayBackendTest.php
@@ -43,6 +43,9 @@ public function testValidate($data)
         $this->assertEquals(null, $product->getEmpty());
     }
 
+    /**
+     * @return array
+     */
     public static function attributeValueDataProvider()
     {
         return [[[1, 2, 3]], ['1,2,3']];
diff --git a/app/code/Magento/Eav/Test/Unit/Model/Entity/Attribute/Source/TableTest.php b/app/code/Magento/Eav/Test/Unit/Model/Entity/Attribute/Source/TableTest.php
index 19a097baa3c55..e807aed85f455 100644
--- a/app/code/Magento/Eav/Test/Unit/Model/Entity/Attribute/Source/TableTest.php
+++ b/app/code/Magento/Eav/Test/Unit/Model/Entity/Attribute/Source/TableTest.php
@@ -223,6 +223,9 @@ public function testGetSpecificOptions($optionIds, $withEmpty)
         $this->assertEquals($options, $this->model->getSpecificOptions($optionIds, $withEmpty));
     }
 
+    /**
+     * @return array
+     */
     public function specificOptionsProvider()
     {
         return [
@@ -282,6 +285,9 @@ public function testGetOptionText($optionsIds, $value, $options, $expectedResult
         $this->assertEquals($expectedResult, $this->model->getOptionText($value));
     }
 
+    /**
+     * @return array
+     */
     public function getOptionTextProvider()
     {
         return [
diff --git a/app/code/Magento/Eav/Test/Unit/Model/Entity/AttributeTest.php b/app/code/Magento/Eav/Test/Unit/Model/Entity/AttributeTest.php
index 7afeb5d01219d..76237f9d7634b 100644
--- a/app/code/Magento/Eav/Test/Unit/Model/Entity/AttributeTest.php
+++ b/app/code/Magento/Eav/Test/Unit/Model/Entity/AttributeTest.php
@@ -33,6 +33,9 @@ public function testGetBackendTypeByInput($givenFrontendInput, $expectedBackendT
         $this->assertEquals($expectedBackendType, $this->_model->getBackendTypeByInput($givenFrontendInput));
     }
 
+    /**
+     * @return array
+     */
     public static function dataGetBackendTypeByInput()
     {
         return [
@@ -61,6 +64,9 @@ public function testGetDefaultValueByInput($givenFrontendInput, $expectedDefault
         $this->assertEquals($expectedDefaultValue, $this->_model->getDefaultValueByInput($givenFrontendInput));
     }
 
+    /**
+     * @return array
+     */
     public static function dataGetDefaultValueByInput()
     {
         return [
diff --git a/app/code/Magento/Eav/Test/Unit/Model/Entity/Collection/AbstractCollectionTest.php b/app/code/Magento/Eav/Test/Unit/Model/Entity/Collection/AbstractCollectionTest.php
index 8ae610332ba72..1f6bd004ca350 100644
--- a/app/code/Magento/Eav/Test/Unit/Model/Entity/Collection/AbstractCollectionTest.php
+++ b/app/code/Magento/Eav/Test/Unit/Model/Entity/Collection/AbstractCollectionTest.php
@@ -208,6 +208,9 @@ public function testRemoveItemByKey($values, $count)
         $this->assertNull($this->model->getItemById($testId));
     }
 
+    /**
+     * @return array
+     */
     public function getItemsDataProvider()
     {
         return [
@@ -217,6 +220,9 @@ public function getItemsDataProvider()
         ];
     }
 
+    /**
+     * @return \Magento\Framework\DataObject
+     */
     public function getMagentoObject()
     {
         return new \Magento\Framework\DataObject();
diff --git a/app/code/Magento/Eav/Test/Unit/Model/Entity/Collection/VersionControl/AbstractCollectionTest.php b/app/code/Magento/Eav/Test/Unit/Model/Entity/Collection/VersionControl/AbstractCollectionTest.php
index d304db9590aee..162d34a68b50e 100644
--- a/app/code/Magento/Eav/Test/Unit/Model/Entity/Collection/VersionControl/AbstractCollectionTest.php
+++ b/app/code/Magento/Eav/Test/Unit/Model/Entity/Collection/VersionControl/AbstractCollectionTest.php
@@ -72,6 +72,9 @@ public function testFetchItem(array $data)
         }
     }
 
+    /**
+     * @return array
+     */
     public static function fetchItemDataProvider()
     {
         return [
diff --git a/app/code/Magento/Eav/Test/Unit/Model/Entity/Increment/AlphanumTest.php b/app/code/Magento/Eav/Test/Unit/Model/Entity/Increment/AlphanumTest.php
index 6786288e76367..79802aae43733 100644
--- a/app/code/Magento/Eav/Test/Unit/Model/Entity/Increment/AlphanumTest.php
+++ b/app/code/Magento/Eav/Test/Unit/Model/Entity/Increment/AlphanumTest.php
@@ -37,6 +37,9 @@ public function testGetNextId($lastId, $prefix, $expectedResult)
         $this->assertEquals($expectedResult, $this->model->getNextId());
     }
 
+    /**
+     * @return array
+     */
     public function getLastIdDataProvider()
     {
         return [
diff --git a/app/code/Magento/Eav/Test/Unit/Model/Entity/Increment/NumericTest.php b/app/code/Magento/Eav/Test/Unit/Model/Entity/Increment/NumericTest.php
index e4ca529f17635..407757ca9f740 100644
--- a/app/code/Magento/Eav/Test/Unit/Model/Entity/Increment/NumericTest.php
+++ b/app/code/Magento/Eav/Test/Unit/Model/Entity/Increment/NumericTest.php
@@ -32,6 +32,9 @@ public function testGetNextId($lastId, $prefix, $expectedResult)
         $this->assertEquals($expectedResult, $this->model->getNextId());
     }
 
+    /**
+     * @return array
+     */
     public function getLastIdDataProvider()
     {
         return [
diff --git a/app/code/Magento/Eav/Test/Unit/Model/ResourceModel/Attribute/CollectionTest.php b/app/code/Magento/Eav/Test/Unit/Model/ResourceModel/Attribute/CollectionTest.php
index 9473dca435529..a485badc4dc27 100644
--- a/app/code/Magento/Eav/Test/Unit/Model/ResourceModel/Attribute/CollectionTest.php
+++ b/app/code/Magento/Eav/Test/Unit/Model/ResourceModel/Attribute/CollectionTest.php
@@ -195,6 +195,9 @@ public function testInitSelect($column, $value)
         $this->model->getSelectCountSql()->assemble();
     }
 
+    /**
+     * @return array
+     */
     public function initSelectDataProvider()
     {
         return [
diff --git a/app/code/Magento/Email/Test/Unit/Model/AbstractTemplateTest.php b/app/code/Magento/Email/Test/Unit/Model/AbstractTemplateTest.php
index d5d049613835b..05d5162065bb8 100644
--- a/app/code/Magento/Email/Test/Unit/Model/AbstractTemplateTest.php
+++ b/app/code/Magento/Email/Test/Unit/Model/AbstractTemplateTest.php
@@ -322,6 +322,9 @@ public function testSetDesignConfigWithValidInputParametersReturnsSuccess()
         $this->assertEquals($config, $model->getDesignConfig()->getData());
     }
 
+    /**
+     * @return array
+     */
     public function invalidInputParametersDataProvider()
     {
         return [[[]], [['area' => 'some_area']], [['store' => 'any_store']]];
diff --git a/app/code/Magento/Email/Test/Unit/Model/Template/Config/XsdTest.php b/app/code/Magento/Email/Test/Unit/Model/Template/Config/XsdTest.php
index df292239dc4db..42ca963620646 100644
--- a/app/code/Magento/Email/Test/Unit/Model/Template/Config/XsdTest.php
+++ b/app/code/Magento/Email/Test/Unit/Model/Template/Config/XsdTest.php
@@ -29,6 +29,9 @@ public function testMergedXml($fixtureXml, array $expectedErrors)
         $this->_testXmlAgainstXsd($fixtureXml, $schemaFile, $expectedErrors);
     }
 
+    /**
+     * @return array
+     */
     public function mergedXmlDataProvider()
     {
         return [
diff --git a/app/code/Magento/Email/Test/Unit/Model/Template/ConfigTest.php b/app/code/Magento/Email/Test/Unit/Model/Template/ConfigTest.php
index b471f04aeb58e..d7484e006224b 100644
--- a/app/code/Magento/Email/Test/Unit/Model/Template/ConfigTest.php
+++ b/app/code/Magento/Email/Test/Unit/Model/Template/ConfigTest.php
@@ -211,6 +211,9 @@ public function testParseTemplateIdParts($input, $expectedOutput)
         $this->assertEquals($this->model->parseTemplateIdParts($input), $expectedOutput);
     }
 
+    /**
+     * @return array
+     */
     public function parseTemplateCodePartsDataProvider()
     {
         return [
@@ -309,6 +312,9 @@ public function testGetterMethodUnknownTemplate($getterMethod, $argument = null)
         }
     }
 
+    /**
+     * @return array
+     */
     public function getterMethodUnknownTemplateDataProvider()
     {
         return [
@@ -355,6 +361,9 @@ public function testGetterMethodUnknownField(
         }
     }
 
+    /**
+     * @return array
+     */
     public function getterMethodUnknownFieldDataProvider()
     {
         return [
diff --git a/app/code/Magento/Email/Test/Unit/Model/TemplateTest.php b/app/code/Magento/Email/Test/Unit/Model/TemplateTest.php
index 9955bdb6bb4d4..ee8734b04932a 100644
--- a/app/code/Magento/Email/Test/Unit/Model/TemplateTest.php
+++ b/app/code/Magento/Email/Test/Unit/Model/TemplateTest.php
@@ -290,6 +290,9 @@ public function testLoadDefault(
         $this->assertEquals($expectedTemplateStyles, $model->getTemplateStyles());
     }
 
+    /**
+     * @return array
+     */
     public function loadDefaultDataProvider()
     {
         return [
@@ -446,6 +449,9 @@ public function testIsValidForSend($senderName, $senderEmail, $templateSubject,
         $this->assertEquals($expectedValue, $model->isValidForSend());
     }
 
+    /**
+     * @return array
+     */
     public function isValidForSendDataProvider()
     {
         return [
@@ -536,6 +542,9 @@ public function testGetVariablesOptionArray($withGroup, $templateVariables, $exp
         $this->assertEquals($expectedResult, $model->getVariablesOptionArray($withGroup));
     }
 
+    /**
+     * @return array
+     */
     public function getVariablesOptionArrayDataProvider()
     {
         return [
@@ -636,6 +645,9 @@ public function testProcessTemplate($templateId, $expectedResult)
         $this->assertTrue($model->getUseAbsoluteLinks());
     }
 
+    /**
+     * @return array
+     */
     public function processTemplateVariable()
     {
         return [
@@ -732,6 +744,9 @@ public function testGetType($templateType, $expectedResult)
         $this->assertEquals($expectedResult, $model->getType());
     }
 
+    /**
+     * @return array
+     */
     public function getTypeDataProvider()
     {
         return [['text', 1], ['html', 2]];
diff --git a/app/code/Magento/GiftMessage/Test/Unit/Block/Cart/Item/Renderer/Actions/ItemIdProcessorTest.php b/app/code/Magento/GiftMessage/Test/Unit/Block/Cart/Item/Renderer/Actions/ItemIdProcessorTest.php
index 5860670e14d69..0d05c59c71305 100644
--- a/app/code/Magento/GiftMessage/Test/Unit/Block/Cart/Item/Renderer/Actions/ItemIdProcessorTest.php
+++ b/app/code/Magento/GiftMessage/Test/Unit/Block/Cart/Item/Renderer/Actions/ItemIdProcessorTest.php
@@ -39,6 +39,9 @@ public function testProcess($itemId, array $jsLayout, array $result)
         $this->assertEquals($result, $this->model->process($jsLayout, $itemMock));
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderProcess()
     {
         return [
diff --git a/app/code/Magento/GoogleAdwords/Test/Unit/Helper/DataTest.php b/app/code/Magento/GoogleAdwords/Test/Unit/Helper/DataTest.php
index 5403b76d859d0..5aac82645d451 100644
--- a/app/code/Magento/GoogleAdwords/Test/Unit/Helper/DataTest.php
+++ b/app/code/Magento/GoogleAdwords/Test/Unit/Helper/DataTest.php
@@ -91,6 +91,9 @@ public function testGetLanguageCodes()
         $this->assertEquals($languages, $this->_helper->getLanguageCodes());
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderForTestConvertLanguage()
     {
         return [
diff --git a/app/code/Magento/GoogleAdwords/Test/Unit/Model/Filter/UppercaseTitleTest.php b/app/code/Magento/GoogleAdwords/Test/Unit/Model/Filter/UppercaseTitleTest.php
index e6648b3a29f39..1734cc049e1a2 100644
--- a/app/code/Magento/GoogleAdwords/Test/Unit/Model/Filter/UppercaseTitleTest.php
+++ b/app/code/Magento/GoogleAdwords/Test/Unit/Model/Filter/UppercaseTitleTest.php
@@ -17,6 +17,9 @@ protected function setUp()
         $this->_model = new \Magento\GoogleAdwords\Model\Filter\UppercaseTitle();
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderForFilterValues()
     {
         return [['some name', 'Some Name'], ['test', 'Test']];
diff --git a/app/code/Magento/GoogleAdwords/Test/Unit/Observer/SetConversionValueObserverTest.php b/app/code/Magento/GoogleAdwords/Test/Unit/Observer/SetConversionValueObserverTest.php
index d800ae6fdc1cc..67a0e5956a24f 100644
--- a/app/code/Magento/GoogleAdwords/Test/Unit/Observer/SetConversionValueObserverTest.php
+++ b/app/code/Magento/GoogleAdwords/Test/Unit/Observer/SetConversionValueObserverTest.php
@@ -62,6 +62,9 @@ protected function setUp()
         );
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderForDisabled()
     {
         return [[false, false], [false, true], [true, false]];
@@ -94,6 +97,9 @@ function () use ($isDynamic) {
         $this->assertSame($this->_model, $this->_model->execute($this->_eventObserverMock));
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderForOrdersIds()
     {
         return [[[]], ['']];
diff --git a/app/code/Magento/GroupedImportExport/Test/Unit/Model/Import/Product/Type/Grouped/LinksTest.php b/app/code/Magento/GroupedImportExport/Test/Unit/Model/Import/Product/Type/Grouped/LinksTest.php
index fd7c465bf431b..d482e51f0cc5d 100644
--- a/app/code/Magento/GroupedImportExport/Test/Unit/Model/Import/Product/Type/Grouped/LinksTest.php
+++ b/app/code/Magento/GroupedImportExport/Test/Unit/Model/Import/Product/Type/Grouped/LinksTest.php
@@ -57,6 +57,9 @@ protected function setUp()
         );
     }
 
+    /**
+     * @return array
+     */
     public function linksDataProvider()
     {
         return [
@@ -107,6 +110,9 @@ public function testSaveLinksDataWithProductsAttrs($linksData)
         $this->links->saveLinksData($linksData);
     }
 
+    /**
+     * @return array
+     */
     public function attributesDataProvider()
     {
         return [
@@ -135,6 +141,9 @@ public function attributesDataProvider()
         ];
     }
 
+    /**
+     * @param $dbAttributes
+     */
     protected function processAttributeGetter($dbAttributes)
     {
         $select = $this->getMock('Magento\Framework\DB\Select', [], [], '', false);
@@ -162,6 +171,9 @@ public function testGetAttributes($dbAttributes, $returnedAttributes)
         $this->assertEquals($returnedAttributes, $actualAttributes);
     }
 
+    /**
+     * @param $behavior
+     */
     protected function processBehaviorGetter($behavior)
     {
         $dataSource = $this->getMock('Magento\ImportExport\Model\ResourceModel\Import\Data', [], [], '', false);
diff --git a/app/code/Magento/GroupedProduct/Test/Unit/Block/Product/View/Type/GroupedTest.php b/app/code/Magento/GroupedProduct/Test/Unit/Block/Product/View/Type/GroupedTest.php
index 86360ade52b5b..6b805d044fb99 100644
--- a/app/code/Magento/GroupedProduct/Test/Unit/Block/Product/View/Type/GroupedTest.php
+++ b/app/code/Magento/GroupedProduct/Test/Unit/Block/Product/View/Type/GroupedTest.php
@@ -123,6 +123,9 @@ public function testSetPreconfiguredValue($id)
         $this->groupedView->setPreconfiguredValue();
     }
 
+    /**
+     * @return array
+     */
     public function setPreconfiguredValueDataProvider()
     {
         return ['item_id_exist_in_config' => ['id_one'], 'item_id_not_exist_in_config' => ['id_two']];
diff --git a/app/code/Magento/GroupedProduct/Test/Unit/Model/Product/Initialization/Helper/ProductLinks/Plugin/GroupedTest.php b/app/code/Magento/GroupedProduct/Test/Unit/Model/Product/Initialization/Helper/ProductLinks/Plugin/GroupedTest.php
index 6640cdad37883..38604dc3fa7c3 100644
--- a/app/code/Magento/GroupedProduct/Test/Unit/Model/Product/Initialization/Helper/ProductLinks/Plugin/GroupedTest.php
+++ b/app/code/Magento/GroupedProduct/Test/Unit/Model/Product/Initialization/Helper/ProductLinks/Plugin/GroupedTest.php
@@ -90,6 +90,9 @@ public function testBeforeInitializeLinksRequestDoesNotHaveGrouped($productType)
         $this->model->beforeInitializeLinks($this->subjectMock, $this->productMock, []);
     }
 
+    /**
+     * @return array
+     */
     public function productTypeDataProvider()
     {
         return [
@@ -142,6 +145,9 @@ public function testBeforeInitializeLinksRequestHasGrouped($linksData)
         $this->model->beforeInitializeLinks($this->subjectMock, $this->productMock, ['associated' => $linksData]);
     }
 
+    /**
+     * @return array
+     */
     public function linksDataProvider()
     {
         return [
diff --git a/app/code/Magento/GroupedProduct/Test/Unit/Pricing/Price/FinalPriceTest.php b/app/code/Magento/GroupedProduct/Test/Unit/Pricing/Price/FinalPriceTest.php
index 6155dbcfc153a..db9a21ede4489 100644
--- a/app/code/Magento/GroupedProduct/Test/Unit/Pricing/Price/FinalPriceTest.php
+++ b/app/code/Magento/GroupedProduct/Test/Unit/Pricing/Price/FinalPriceTest.php
@@ -97,6 +97,10 @@ public function testGetValue()
         $this->assertEquals(10, $this->finalPrice->getValue());
     }
 
+    /**
+     * @param $price
+     * @return mixed
+     */
     protected function getProductMock($price)
     {
         $priceTypeMock = $this->getMock('Magento\Catalog\Pricing\Price\FinalPrice', [], [], '', false);
diff --git a/app/code/Magento/GroupedProduct/Test/Unit/Ui/DataProvider/Product/GroupedProductDataProviderTest.php b/app/code/Magento/GroupedProduct/Test/Unit/Ui/DataProvider/Product/GroupedProductDataProviderTest.php
index 793e631a29168..6c38d613057e8 100644
--- a/app/code/Magento/GroupedProduct/Test/Unit/Ui/DataProvider/Product/GroupedProductDataProviderTest.php
+++ b/app/code/Magento/GroupedProduct/Test/Unit/Ui/DataProvider/Product/GroupedProductDataProviderTest.php
@@ -75,6 +75,9 @@ protected function setUp()
             ->getMockForAbstractClass();
     }
 
+    /**
+     * @return object
+     */
     protected function getModel()
     {
         return $this->objectManager->getObject(GroupedProductDataProvider::class, [
diff --git a/app/code/Magento/ImportExport/Test/Unit/Model/Export/ConfigTest.php b/app/code/Magento/ImportExport/Test/Unit/Model/Export/ConfigTest.php
index 67bbc27b0d564..ee2c0545123ec 100644
--- a/app/code/Magento/ImportExport/Test/Unit/Model/Export/ConfigTest.php
+++ b/app/code/Magento/ImportExport/Test/Unit/Model/Export/ConfigTest.php
@@ -64,6 +64,9 @@ public function testGetEntities($value, $expected)
         $this->assertEquals($expected, $this->_model->getEntities('entities'));
     }
 
+    /**
+     * @return array
+     */
     public function getEntitiesDataProvider()
     {
         return [
@@ -98,6 +101,9 @@ public function testGetEntityTypes($configData, $entity, $expectedResult)
         $this->assertEquals($expectedResult, $this->_model->getEntityTypes($entity));
     }
 
+    /**
+     * @return array
+     */
     public function getEntityTypesDataProvider()
     {
         return [
@@ -151,6 +157,9 @@ public function testGetFileFormats($value, $expected)
         $this->assertEquals($expected, $this->_model->getFileFormats('fileFormats'));
     }
 
+    /**
+     * @return array
+     */
     public function getFileFormatsDataProvider()
     {
         return [
diff --git a/app/code/Magento/ImportExport/Test/Unit/Model/Import/ConfigTest.php b/app/code/Magento/ImportExport/Test/Unit/Model/Import/ConfigTest.php
index 4a60e272db4f2..c7bb78e2aa3e3 100644
--- a/app/code/Magento/ImportExport/Test/Unit/Model/Import/ConfigTest.php
+++ b/app/code/Magento/ImportExport/Test/Unit/Model/Import/ConfigTest.php
@@ -64,6 +64,9 @@ public function testGetEntities($value, $expected)
         $this->assertEquals($expected, $this->_model->getEntities('entities'));
     }
 
+    /**
+     * @return array
+     */
     public function getEntitiesDataProvider()
     {
         return [
@@ -98,6 +101,9 @@ public function testGetEntityTypes($configData, $entity, $expectedResult)
         $this->assertEquals($expectedResult, $this->_model->getEntityTypes($entity));
     }
 
+    /**
+     * @return array
+     */
     public function getEntityTypesDataProvider()
     {
         return [
diff --git a/app/code/Magento/ImportExport/Test/Unit/Model/Import/Source/ZipTest.php b/app/code/Magento/ImportExport/Test/Unit/Model/Import/Source/ZipTest.php
index 49a9dc2c76304..6cff1c96f4253 100644
--- a/app/code/Magento/ImportExport/Test/Unit/Model/Import/Source/ZipTest.php
+++ b/app/code/Magento/ImportExport/Test/Unit/Model/Import/Source/ZipTest.php
@@ -39,6 +39,9 @@ public function testConstructorFileDestinationMatch($fileName, $expectedfileName
         $this->_invokeConstructor($fileName);
     }
 
+    /**
+     * @return array
+     */
     public function constructorFileDestinationMatchDataProvider()
     {
         return [
diff --git a/app/code/Magento/Indexer/Test/Unit/App/IndexerTest.php b/app/code/Magento/Indexer/Test/Unit/App/IndexerTest.php
index 2b3dc1acc314a..b9b20730aa71b 100644
--- a/app/code/Magento/Indexer/Test/Unit/App/IndexerTest.php
+++ b/app/code/Magento/Indexer/Test/Unit/App/IndexerTest.php
@@ -60,6 +60,9 @@ public function testExecute($isExist, $callCount)
         $this->assertEquals(0, $this->entryPoint->launch()->getCode());
     }
 
+    /**
+     * @return array
+     */
     public function executeProvider(){
         return [
             'set1' => ['isExist' => true, 'expectsValue' => 1],
diff --git a/app/code/Magento/Indexer/Test/Unit/Block/Backend/Grid/Column/Renderer/ScheduledTest.php b/app/code/Magento/Indexer/Test/Unit/Block/Backend/Grid/Column/Renderer/ScheduledTest.php
index 81c29481bb8e2..fb68d0b10ded9 100644
--- a/app/code/Magento/Indexer/Test/Unit/Block/Backend/Grid/Column/Renderer/ScheduledTest.php
+++ b/app/code/Magento/Indexer/Test/Unit/Block/Backend/Grid/Column/Renderer/ScheduledTest.php
@@ -31,6 +31,9 @@ public function testRender($rowValue, $class, $text)
         $this->assertEquals($result, $html);
     }
 
+    /**
+     * @return array
+     */
     public function typeProvider()
     {
         return [
diff --git a/app/code/Magento/Indexer/Test/Unit/Block/Backend/Grid/Column/Renderer/StatusTest.php b/app/code/Magento/Indexer/Test/Unit/Block/Backend/Grid/Column/Renderer/StatusTest.php
index b987ee3859787..53712347a23d9 100644
--- a/app/code/Magento/Indexer/Test/Unit/Block/Backend/Grid/Column/Renderer/StatusTest.php
+++ b/app/code/Magento/Indexer/Test/Unit/Block/Backend/Grid/Column/Renderer/StatusTest.php
@@ -33,6 +33,9 @@ public function testRender($indexValues, $expectedResult)
         );
     }
 
+    /**
+     * @return array
+     */
     public function renderDataProvider()
     {
         return [
diff --git a/app/code/Magento/Indexer/Test/Unit/Block/Backend/Grid/Column/Renderer/UpdatedTest.php b/app/code/Magento/Indexer/Test/Unit/Block/Backend/Grid/Column/Renderer/UpdatedTest.php
index df9038113b4ea..7b00b9c9afc2a 100644
--- a/app/code/Magento/Indexer/Test/Unit/Block/Backend/Grid/Column/Renderer/UpdatedTest.php
+++ b/app/code/Magento/Indexer/Test/Unit/Block/Backend/Grid/Column/Renderer/UpdatedTest.php
@@ -27,6 +27,9 @@ public function testRender($defaultValue, $assert)
         $this->assertEquals($result, $assert);
     }
 
+    /**
+     * @return array
+     */
     public function renderProvider()
     {
         return [
diff --git a/app/code/Magento/Indexer/Test/Unit/Model/IndexerTest.php b/app/code/Magento/Indexer/Test/Unit/Model/IndexerTest.php
index f93aed35d7de6..fc46855be3381 100644
--- a/app/code/Magento/Indexer/Test/Unit/Model/IndexerTest.php
+++ b/app/code/Magento/Indexer/Test/Unit/Model/IndexerTest.php
@@ -301,6 +301,9 @@ function () {
         $this->model->reindexAll();
     }
 
+    /**
+     * @return array
+     */
     protected function getIndexerData()
     {
         return [
diff --git a/app/code/Magento/Indexer/Test/Unit/Model/ResourceModel/AbstractResourceTest.php b/app/code/Magento/Indexer/Test/Unit/Model/ResourceModel/AbstractResourceTest.php
index 4ecb986987b7f..6fb73e50d1bf4 100644
--- a/app/code/Magento/Indexer/Test/Unit/Model/ResourceModel/AbstractResourceTest.php
+++ b/app/code/Magento/Indexer/Test/Unit/Model/ResourceModel/AbstractResourceTest.php
@@ -176,6 +176,9 @@ public function testInsertFromTable($readToIndex)
         );
     }
 
+    /**
+     * @return array
+     */
     public function insertFromTableData()
     {
         return [[false], [true]];
diff --git a/app/code/Magento/Integration/Test/Unit/Block/Adminhtml/Integration/Edit/Tab/WebapiTest.php b/app/code/Magento/Integration/Test/Unit/Block/Adminhtml/Integration/Edit/Tab/WebapiTest.php
index ad615906f54fc..46e256ba6b4e9 100644
--- a/app/code/Magento/Integration/Test/Unit/Block/Adminhtml/Integration/Edit/Tab/WebapiTest.php
+++ b/app/code/Magento/Integration/Test/Unit/Block/Adminhtml/Integration/Edit/Tab/WebapiTest.php
@@ -83,6 +83,9 @@ public function testCanShowTab($integrationData, $expectedValue)
         $this->assertEquals($expectedValue, $this->webapiBlock->canShowTab());
     }
 
+    /**
+     * @return array
+     */
     public function canShowTabProvider()
     {
         return [
@@ -127,6 +130,9 @@ public function testIsEverythingAllowed($rootResourceId, $integrationData, $sele
         $this->assertEquals($expectedValue, $this->webapiBlock->isEverythingAllowed());
     }
 
+    /**
+     * @return array
+     */
     public function isEverythingAllowedProvider()
     {
         return [
diff --git a/app/code/Magento/Integration/Test/Unit/Block/Adminhtml/Widget/Grid/Column/Renderer/NameTest.php b/app/code/Magento/Integration/Test/Unit/Block/Adminhtml/Widget/Grid/Column/Renderer/NameTest.php
index bc8e409bd5387..9a3b724854eda 100644
--- a/app/code/Magento/Integration/Test/Unit/Block/Adminhtml/Widget/Grid/Column/Renderer/NameTest.php
+++ b/app/code/Magento/Integration/Test/Unit/Block/Adminhtml/Widget/Grid/Column/Renderer/NameTest.php
@@ -90,6 +90,9 @@ public function testRender($endpoint, $name, $expectedResult)
         $this->assertEquals($expectedResult, $actualResult);
     }
 
+    /**
+     * @return array
+     */
     public function endpointDataProvider()
     {
         return [
diff --git a/app/code/Magento/Integration/Test/Unit/Helper/DataTest.php b/app/code/Magento/Integration/Test/Unit/Helper/DataTest.php
index 4f8fd5f903f09..1fd272fb6a88e 100644
--- a/app/code/Magento/Integration/Test/Unit/Helper/DataTest.php
+++ b/app/code/Magento/Integration/Test/Unit/Helper/DataTest.php
@@ -33,6 +33,9 @@ public function testIsConfigType($integrationsData, $expectedResult)
         $this->assertEquals($expectedResult, $this->dataHelper->isConfigType($integrationsData));
     }
 
+    /**
+     * @return array
+     */
     public function integrationDataProvider()
     {
         return [
diff --git a/app/code/Magento/Integration/Test/Unit/Helper/Oauth/ConsumerTest.php b/app/code/Magento/Integration/Test/Unit/Helper/Oauth/ConsumerTest.php
index e3029a4fdd349..25e329a5852fd 100644
--- a/app/code/Magento/Integration/Test/Unit/Helper/Oauth/ConsumerTest.php
+++ b/app/code/Magento/Integration/Test/Unit/Helper/Oauth/ConsumerTest.php
@@ -197,6 +197,10 @@ public function testPostToConsumer()
         $this->assertEquals($oauthVerifier, $verifier, 'Checking Oauth Verifier');
     }
 
+    /**
+     * @param $length
+     * @return bool|string
+     */
     private function _generateRandomString($length)
     {
         return substr(
diff --git a/app/code/Magento/Integration/Test/Unit/Oauth/OauthTest.php b/app/code/Magento/Integration/Test/Unit/Oauth/OauthTest.php
index 82174f5d7b104..64ba64ee2257e 100644
--- a/app/code/Magento/Integration/Test/Unit/Oauth/OauthTest.php
+++ b/app/code/Magento/Integration/Test/Unit/Oauth/OauthTest.php
@@ -156,6 +156,10 @@ public function tearDown()
         unset($this->_oauth);
     }
 
+    /**
+     * @param array $amendments
+     * @return array
+     */
     protected function _getRequestTokenParams($amendments = [])
     {
         $requiredParams = [
@@ -233,6 +237,9 @@ public function testGetRequestTokenOutdatedConsumerKey()
         $this->_oauth->getRequestToken($this->_getRequestTokenParams(), self::REQUEST_URL);
     }
 
+    /**
+     * @param bool $isLoadable
+     */
     protected function _setupConsumer($isLoadable = true)
     {
         $this->_consumerMock->expects($this->any())->method('loadByKey')->will($this->returnSelf());
@@ -293,6 +300,9 @@ public function testGetRequestTokenOauthTimestampRefused($timestamp)
         );
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderForGetRequestTokenNonceTimestampRefusedTest()
     {
         return [
@@ -302,6 +312,10 @@ public function dataProviderForGetRequestTokenNonceTimestampRefusedTest()
         ];
     }
 
+    /**
+     * @param bool $isUsed
+     * @param int $timestamp
+     */
     protected function _setupNonce($isUsed = false, $timestamp = 0)
     {
         $nonceMock = $this->getMockBuilder(
@@ -361,6 +375,13 @@ public function testGetRequestTokenNoConsumer()
         $this->_oauth->getRequestToken($this->_getRequestTokenParams(), self::REQUEST_URL);
     }
 
+    /**
+     * @param bool $doesExist
+     * @param string $type
+     * @param int $consumerId
+     * @param null $verifier
+     * @param bool $isRevoked
+     */
     protected function _setupToken(
         $doesExist = true,
         $type = \Magento\Integration\Model\Oauth\Token::TYPE_VERIFIER,
@@ -604,6 +625,9 @@ public function testGetAccessTokenVerifierInvalid($verifier, $verifierFromToken)
         );
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderForGetAccessTokenVerifierInvalidTest()
     {
         // Verifier is not a string
@@ -789,6 +813,9 @@ public function testMissingParamForBuildAuthorizationHeader($expectedMessage, $r
         $this->_oauth->buildAuthorizationHeader($request, $requestUrl);
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderMissingParamForBuildAuthorizationHeaderTest()
     {
         return [
@@ -838,6 +865,10 @@ public function dataProviderMissingParamForBuildAuthorizationHeaderTest()
         ];
     }
 
+    /**
+     * @param array $amendments
+     * @return array
+     */
     protected function _getAccessTokenRequiredParams($amendments = [])
     {
         $requiredParams = [
@@ -855,6 +886,10 @@ protected function _getAccessTokenRequiredParams($amendments = [])
         return array_merge($requiredParams, $amendments);
     }
 
+    /**
+     * @param $length
+     * @return bool|string
+     */
     private function _generateRandomString($length)
     {
         return substr(
diff --git a/app/code/Magento/MediaStorage/Test/Unit/App/MediaTest.php b/app/code/Magento/MediaStorage/Test/Unit/App/MediaTest.php
index 523ad88d018c1..fa44065456fcd 100644
--- a/app/code/Magento/MediaStorage/Test/Unit/App/MediaTest.php
+++ b/app/code/Magento/MediaStorage/Test/Unit/App/MediaTest.php
@@ -229,6 +229,9 @@ public function testCatchException($isDeveloper, $setBodyCalls)
         $this->model->catchException($bootstrap, $exception);
     }
 
+    /**
+     * @return array
+     */
     public function catchExceptionDataProvider()
     {
         return [
diff --git a/app/code/Magento/MediaStorage/Test/Unit/Helper/File/MediaTest.php b/app/code/Magento/MediaStorage/Test/Unit/Helper/File/MediaTest.php
index 7a55f67cc31fe..e2128c31eec2b 100644
--- a/app/code/Magento/MediaStorage/Test/Unit/Helper/File/MediaTest.php
+++ b/app/code/Magento/MediaStorage/Test/Unit/Helper/File/MediaTest.php
@@ -87,6 +87,9 @@ public function testCollectFileInfo($path, $expectedDir, $expectedFile)
         $this->assertEquals($expected, $this->helper->collectFileInfo($mediaDirectory, $path));
     }
 
+    /**
+     * @return array
+     */
     public function pathDataProvider()
     {
         return [
diff --git a/app/code/Magento/MediaStorage/Test/Unit/Helper/File/Storage/DatabaseTest.php b/app/code/Magento/MediaStorage/Test/Unit/Helper/File/Storage/DatabaseTest.php
index a0c89b733867d..d71955d330440 100644
--- a/app/code/Magento/MediaStorage/Test/Unit/Helper/File/Storage/DatabaseTest.php
+++ b/app/code/Magento/MediaStorage/Test/Unit/Helper/File/Storage/DatabaseTest.php
@@ -74,6 +74,9 @@ public function testCheckDbUsage($storage, $expected)
         $this->assertEquals($expected, $this->helper->checkDbUsage());
     }
 
+    /**
+     * @return array
+     */
     public function checkDbUsageDataProvider()
     {
         return [
@@ -143,6 +146,9 @@ public function testSaveFile($storage, $callNum)
         $this->helper->saveFile('media-dir/filename');
     }
 
+    /**
+     * @return array
+     */
     public function updateFileDataProvider()
     {
         return [
@@ -225,6 +231,9 @@ public function testFileExists($storage, $callNum, $expected)
         $this->assertEquals($expected, $this->helper->fileExists('media-dir/file'));
     }
 
+    /**
+     * @return array
+     */
     public function fileExistsDataProvider()
     {
         return [
@@ -263,6 +272,9 @@ public function testGetUniqueFilename($storage, $callNum, $expected)
         $this->assertSame($expected, $this->helper->getUniqueFilename('media-dir/directory/', 'filename.ext'));
     }
 
+    /**
+     * @return array
+     */
     public function getUniqueFilenameDataProvider()
     {
         return [
@@ -307,6 +319,9 @@ public function testSaveFileToFileSystem($expected, $storage, $callNum, $id = 0,
         $this->assertEquals($expected, $this->helper->saveFileToFilesystem('media-dir/filename'));
     }
 
+    /**
+     * @return array
+     */
     public function saveFileToFileSystemDataProvider()
     {
         return [
@@ -429,6 +444,9 @@ public function testSaveUploadedFile($result, $expected, $expectedFullPath, $sto
         $this->assertEquals($expected, $this->helper->saveUploadedFile($result));
     }
 
+    /**
+     * @return array
+     */
     public function saveUploadedFileDataProvider()
     {
         return [
diff --git a/app/code/Magento/MediaStorage/Test/Unit/Helper/File/StorageTest.php b/app/code/Magento/MediaStorage/Test/Unit/Helper/File/StorageTest.php
index bac81af9e6f5a..8e97b7933368c 100644
--- a/app/code/Magento/MediaStorage/Test/Unit/Helper/File/StorageTest.php
+++ b/app/code/Magento/MediaStorage/Test/Unit/Helper/File/StorageTest.php
@@ -77,6 +77,9 @@ public function testIsInternalStorage($storage, $callNum, $expected)
         $this->assertEquals($expected, $this->helper->isInternalStorage($storage));
     }
 
+    /**
+     * @return array
+     */
     public function isInternalStorageDataProvider()
     {
         return [
@@ -146,6 +149,9 @@ public function testProcessStorageFile($expected, $storage, $callNum, $callSaveF
         $this->assertEquals($expected, $this->helper->processStorageFile($filename));
     }
 
+    /**
+     * @return array
+     */
     public function processStorageFileDataProvider()
     {
         return [
diff --git a/app/code/Magento/Multishipping/Test/Unit/Block/Checkout/Address/SelectTest.php b/app/code/Magento/Multishipping/Test/Unit/Block/Checkout/Address/SelectTest.php
index 0d424e331dace..7749c7461ee84 100644
--- a/app/code/Magento/Multishipping/Test/Unit/Block/Checkout/Address/SelectTest.php
+++ b/app/code/Magento/Multishipping/Test/Unit/Block/Checkout/Address/SelectTest.php
@@ -111,6 +111,9 @@ public function testIsAddressDefaultShipping($id, $expectedValue)
         $this->assertEquals($expectedValue, $this->block->isAddressDefaultShipping($this->addressMock));
     }
 
+    /**
+     * @return array
+     */
     public function isDefaultAddressDataProvider()
     {
         return [
diff --git a/app/code/Magento/Multishipping/Test/Unit/Controller/Checkout/Address/NewShippingTest.php b/app/code/Magento/Multishipping/Test/Unit/Controller/Checkout/Address/NewShippingTest.php
index 5ea469f81b933..78ca9958fa953 100644
--- a/app/code/Magento/Multishipping/Test/Unit/Controller/Checkout/Address/NewShippingTest.php
+++ b/app/code/Magento/Multishipping/Test/Unit/Controller/Checkout/Address/NewShippingTest.php
@@ -160,6 +160,9 @@ public function testExecute($backUrl, $shippingAddress, $url)
         $this->controller->execute();
     }
 
+    /**
+     * @return array
+     */
     public function executeDataProvider()
     {
         return [
diff --git a/app/code/Magento/NewRelicReporting/Test/Unit/Model/Apm/DeploymentsTest.php b/app/code/Magento/NewRelicReporting/Test/Unit/Model/Apm/DeploymentsTest.php
index 26cc1ef3f457e..45d84d2d1c60f 100644
--- a/app/code/Magento/NewRelicReporting/Test/Unit/Model/Apm/DeploymentsTest.php
+++ b/app/code/Magento/NewRelicReporting/Test/Unit/Model/Apm/DeploymentsTest.php
@@ -248,6 +248,9 @@ public function testSetDeploymentRequestFail()
         );
     }
 
+    /**
+     * @return array
+     */
     private function getDataVariables()
     {
         $description = 'Event description';
diff --git a/app/code/Magento/NewRelicReporting/Test/Unit/Model/Module/CollectTest.php b/app/code/Magento/NewRelicReporting/Test/Unit/Model/Module/CollectTest.php
index f108c3bc59f46..a4403cb95b6aa 100644
--- a/app/code/Magento/NewRelicReporting/Test/Unit/Model/Module/CollectTest.php
+++ b/app/code/Magento/NewRelicReporting/Test/Unit/Model/Module/CollectTest.php
@@ -367,6 +367,9 @@ public function testGetModuleDataRefreshOrStatement($data)
         );
     }
 
+    /**
+     * @return array
+     */
     public function itemDataProvider()
     {
         return [
diff --git a/app/code/Magento/NewRelicReporting/Test/Unit/Model/Observer/ReportProductSavedToNewRelicTest.php b/app/code/Magento/NewRelicReporting/Test/Unit/Model/Observer/ReportProductSavedToNewRelicTest.php
index 2f0e578a25684..a63d5e8b08c85 100644
--- a/app/code/Magento/NewRelicReporting/Test/Unit/Model/Observer/ReportProductSavedToNewRelicTest.php
+++ b/app/code/Magento/NewRelicReporting/Test/Unit/Model/Observer/ReportProductSavedToNewRelicTest.php
@@ -140,6 +140,9 @@ public function testReportProductUpdatedToNewRelic($isNewObject)
         $this->model->execute($eventObserver);
     }
 
+    /**
+     * @return array
+     */
     public function actionDataProvider()
     {
         return [[true], [false]];
diff --git a/app/code/Magento/Newsletter/Test/Unit/Model/SubscriberTest.php b/app/code/Magento/Newsletter/Test/Unit/Model/SubscriberTest.php
index a12cefca9c45f..de8030a8709a3 100644
--- a/app/code/Magento/Newsletter/Test/Unit/Model/SubscriberTest.php
+++ b/app/code/Magento/Newsletter/Test/Unit/Model/SubscriberTest.php
@@ -381,6 +381,9 @@ public function testReceived()
         $this->assertEquals($this->subscriber, $this->subscriber->received($queue));
     }
 
+    /**
+     * @return $this
+     */
     protected function sendEmailCheck()
     {
         $storeModel = $this->getMockBuilder('\Magento\Store\Model\Store')
diff --git a/app/code/Magento/Newsletter/Test/Unit/Model/TemplateTest.php b/app/code/Magento/Newsletter/Test/Unit/Model/TemplateTest.php
index 48fb69f306c7e..fc326f2af53ab 100644
--- a/app/code/Magento/Newsletter/Test/Unit/Model/TemplateTest.php
+++ b/app/code/Magento/Newsletter/Test/Unit/Model/TemplateTest.php
@@ -404,6 +404,9 @@ public function testIsValidForSend($senderName, $senderEmail, $templateSubject,
         $this->assertEquals($expectedValue, $model->isValidForSend());
     }
 
+    /**
+     * @return array
+     */
     public function isValidForSendDataProvider()
     {
         return [
diff --git a/app/code/Magento/OfflinePayments/Test/Unit/Model/CheckmoConfigProviderTest.php b/app/code/Magento/OfflinePayments/Test/Unit/Model/CheckmoConfigProviderTest.php
index b09009fea2312..7401575316d2d 100644
--- a/app/code/Magento/OfflinePayments/Test/Unit/Model/CheckmoConfigProviderTest.php
+++ b/app/code/Magento/OfflinePayments/Test/Unit/Model/CheckmoConfigProviderTest.php
@@ -63,6 +63,9 @@ public function testGetConfig($isAvailable, $mailingAddress, $payableTo, $result
         $this->assertEquals($result, $this->model->getConfig());
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderGetConfig()
     {
         $checkmoCode = Checkmo::PAYMENT_METHOD_CHECKMO_CODE;
diff --git a/app/code/Magento/OfflinePayments/Test/Unit/Model/InstructionsConfigProviderTest.php b/app/code/Magento/OfflinePayments/Test/Unit/Model/InstructionsConfigProviderTest.php
index 16b677fc4bfd7..1af4beba3c904 100644
--- a/app/code/Magento/OfflinePayments/Test/Unit/Model/InstructionsConfigProviderTest.php
+++ b/app/code/Magento/OfflinePayments/Test/Unit/Model/InstructionsConfigProviderTest.php
@@ -88,6 +88,9 @@ public function testGetConfig($isOneAvailable, $instructionsOne, $isTwoAvailable
         $this->assertEquals($result, $this->model->getConfig());
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderGetConfig()
     {
         $oneCode = Banktransfer::PAYMENT_METHOD_BANKTRANSFER_CODE;
diff --git a/app/code/Magento/OfflinePayments/Test/Unit/Observer/BeforeOrderPaymentSaveObserverTest.php b/app/code/Magento/OfflinePayments/Test/Unit/Observer/BeforeOrderPaymentSaveObserverTest.php
index 49692827e3d78..7b81edc896368 100644
--- a/app/code/Magento/OfflinePayments/Test/Unit/Observer/BeforeOrderPaymentSaveObserverTest.php
+++ b/app/code/Magento/OfflinePayments/Test/Unit/Observer/BeforeOrderPaymentSaveObserverTest.php
@@ -63,6 +63,9 @@ public function testBeforeOrderPaymentSaveWithInstructions($methodCode)
         $this->_model->execute($observer);
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderBeforeOrderPaymentSaveWithInstructions()
     {
         return [
diff --git a/app/code/Magento/OfflineShipping/Test/Unit/Model/Plugin/Checkout/Block/Cart/ShippingTest.php b/app/code/Magento/OfflineShipping/Test/Unit/Model/Plugin/Checkout/Block/Cart/ShippingTest.php
index 7e74b9e9907f5..102a9839cbbc0 100644
--- a/app/code/Magento/OfflineShipping/Test/Unit/Model/Plugin/Checkout/Block/Cart/ShippingTest.php
+++ b/app/code/Magento/OfflineShipping/Test/Unit/Model/Plugin/Checkout/Block/Cart/ShippingTest.php
@@ -51,6 +51,9 @@ public function testAfterGetStateActive($scopeConfigMockReturnValue, $result, $a
         $this->assertEquals($assertResult, $this->model->afterIsStateActive($subjectMock, $result));
     }
 
+    /**
+     * @return array
+     */
     public function afterGetStateActiveDataProvider()
     {
         return [
diff --git a/app/code/Magento/OfflineShipping/Test/Unit/Model/ResourceModel/Carrier/Tablerate/CSV/RowParserTest.php b/app/code/Magento/OfflineShipping/Test/Unit/Model/ResourceModel/Carrier/Tablerate/CSV/RowParserTest.php
index f96e00383016e..366d1ae3b4cd5 100644
--- a/app/code/Magento/OfflineShipping/Test/Unit/Model/ResourceModel/Carrier/Tablerate/CSV/RowParserTest.php
+++ b/app/code/Magento/OfflineShipping/Test/Unit/Model/ResourceModel/Carrier/Tablerate/CSV/RowParserTest.php
@@ -128,6 +128,9 @@ public function testParseWithException(array $rowData, $conditionFullName, array
         throw $exception;
     }
 
+    /**
+     * @return array
+     */
     public function parseWithExceptionDataProvider()
     {
         $rowData = ['a', 'b', 'c', 'd', 'e'];
diff --git a/app/code/Magento/OfflineShipping/Test/Unit/Model/SalesRule/CalculatorTest.php b/app/code/Magento/OfflineShipping/Test/Unit/Model/SalesRule/CalculatorTest.php
index 27fedee39dd7e..8d7101ed372f9 100644
--- a/app/code/Magento/OfflineShipping/Test/Unit/Model/SalesRule/CalculatorTest.php
+++ b/app/code/Magento/OfflineShipping/Test/Unit/Model/SalesRule/CalculatorTest.php
@@ -23,6 +23,9 @@ protected function setUp()
         );
     }
 
+    /**
+     * @return bool
+     */
     public function testProcessFreeShipping()
     {
         $addressMock = $this->getMockBuilder('Magento\Quote\Model\Quote\Address')
diff --git a/app/code/Magento/PageCache/Test/Unit/Block/JavascriptTest.php b/app/code/Magento/PageCache/Test/Unit/Block/JavascriptTest.php
index e0487da54a3ca..2830a428c5886 100644
--- a/app/code/Magento/PageCache/Test/Unit/Block/JavascriptTest.php
+++ b/app/code/Magento/PageCache/Test/Unit/Block/JavascriptTest.php
@@ -136,6 +136,9 @@ public function testGetScriptOptions($isSecure, $url, $expectedResult)
         $this->assertRegExp($expectedResult, $this->blockJavascript->getScriptOptions());
     }
 
+    /**
+     * @return array
+     */
     public function getScriptOptionsDataProvider()
     {
         return [
@@ -199,6 +202,9 @@ public function testGetScriptOptionsPrivateContent($url, $route, $controller, $a
         $this->assertRegExp($expectedResult, $this->blockJavascript->getScriptOptions());
     }
 
+    /**
+     * @return array
+     */
     public function getScriptOptionsPrivateContentDataProvider()
     {
         // @codingStandardsIgnoreStart
diff --git a/app/code/Magento/PageCache/Test/Unit/Controller/Block/EsiTest.php b/app/code/Magento/PageCache/Test/Unit/Controller/Block/EsiTest.php
index 4367e1649ab48..a7e044c7a0567 100644
--- a/app/code/Magento/PageCache/Test/Unit/Controller/Block/EsiTest.php
+++ b/app/code/Magento/PageCache/Test/Unit/Controller/Block/EsiTest.php
@@ -126,6 +126,9 @@ public function testExecute($blockClass, $shouldSetHeaders)
         $this->action->execute();
     }
 
+    /**
+     * @return array
+     */
     public function executeDataProvider()
     {
         return [
diff --git a/app/code/Magento/PageCache/Test/Unit/Model/App/FrontController/BuiltinPluginTest.php b/app/code/Magento/PageCache/Test/Unit/Model/App/FrontController/BuiltinPluginTest.php
index 1cf1b02fac99c..47ea264acef42 100644
--- a/app/code/Magento/PageCache/Test/Unit/Model/App/FrontController/BuiltinPluginTest.php
+++ b/app/code/Magento/PageCache/Test/Unit/Model/App/FrontController/BuiltinPluginTest.php
@@ -232,6 +232,9 @@ public function testAroundDispatchDisabled($state)
         );
     }
 
+    /**
+     * @return array
+     */
     public function dataProvider()
     {
         return [
diff --git a/app/code/Magento/PageCache/Test/Unit/Model/App/FrontController/VarnishPluginTest.php b/app/code/Magento/PageCache/Test/Unit/Model/App/FrontController/VarnishPluginTest.php
index 65f32ceb76aac..a9b8532b05e75 100644
--- a/app/code/Magento/PageCache/Test/Unit/Model/App/FrontController/VarnishPluginTest.php
+++ b/app/code/Magento/PageCache/Test/Unit/Model/App/FrontController/VarnishPluginTest.php
@@ -128,6 +128,9 @@ public function testAroundDispatchDisabled($state)
         $this->plugin->aroundDispatch($this->frontControllerMock, $this->closure, $this->requestMock);
     }
 
+    /**
+     * @return array
+     */
     public function dataProvider()
     {
         return [
diff --git a/app/code/Magento/PageCache/Test/Unit/Model/App/PageCachePluginTest.php b/app/code/Magento/PageCache/Test/Unit/Model/App/PageCachePluginTest.php
index 0bbac6c40420e..77b4b31aae295 100644
--- a/app/code/Magento/PageCache/Test/Unit/Model/App/PageCachePluginTest.php
+++ b/app/code/Magento/PageCache/Test/Unit/Model/App/PageCachePluginTest.php
@@ -57,6 +57,9 @@ public function testAfterSaveDecompression($data, $initResult)
         $this->assertSame($data, $this->plugin->afterLoad($this->subjectMock, $initResult));
     }
 
+    /**
+     * @return array
+     */
     public function afterSaveDataProvider()
     {
         return [
diff --git a/app/code/Magento/PageCache/Test/Unit/Model/App/Response/HttpPluginTest.php b/app/code/Magento/PageCache/Test/Unit/Model/App/Response/HttpPluginTest.php
index 7f64b2a042ea9..030e526a3488d 100644
--- a/app/code/Magento/PageCache/Test/Unit/Model/App/Response/HttpPluginTest.php
+++ b/app/code/Magento/PageCache/Test/Unit/Model/App/Response/HttpPluginTest.php
@@ -26,6 +26,9 @@ public function testBeforeSendResponse($responseInstanceClass, $sendVaryCalled)
         $plugin->beforeSendResponse($responseMock);
     }
 
+    /**
+     * @return array
+     */
     public function beforeSendResponseDataProvider()
     {
         return [
diff --git a/app/code/Magento/PageCache/Test/Unit/Model/Cache/ServerTest.php b/app/code/Magento/PageCache/Test/Unit/Model/Cache/ServerTest.php
index c9fc122984b5f..3cec59eb024cd 100644
--- a/app/code/Magento/PageCache/Test/Unit/Model/Cache/ServerTest.php
+++ b/app/code/Magento/PageCache/Test/Unit/Model/Cache/ServerTest.php
@@ -90,6 +90,9 @@ public function testGetUris(
         $this->assertEquals($uris, $this->model->getUris());
     }
 
+    /**
+     * @return array
+     */
     public function getUrisDataProvider()
     {
         return [
diff --git a/app/code/Magento/PageCache/Test/Unit/Model/Layout/LayoutPluginTest.php b/app/code/Magento/PageCache/Test/Unit/Model/Layout/LayoutPluginTest.php
index 979232901ecc7..8e581712f806b 100644
--- a/app/code/Magento/PageCache/Test/Unit/Model/Layout/LayoutPluginTest.php
+++ b/app/code/Magento/PageCache/Test/Unit/Model/Layout/LayoutPluginTest.php
@@ -70,6 +70,9 @@ public function testAfterGenerateXml($cacheState, $layoutIsCacheable)
         $this->assertSame($result, $output);
     }
 
+    /**
+     * @return array
+     */
     public function afterGenerateXmlDataProvider()
     {
         return [
@@ -108,6 +111,9 @@ public function testAfterGetOutput($cacheState, $layoutIsCacheable, $expectedTag
         $this->assertSame($output, $html);
     }
 
+    /**
+     * @return array
+     */
     public function afterGetOutputDataProvider()
     {
         $tags = 'identity1,identity2';
diff --git a/app/code/Magento/PageCache/Test/Unit/Observer/FlushCacheByTagsTest.php b/app/code/Magento/PageCache/Test/Unit/Observer/FlushCacheByTagsTest.php
index bead1be5dfe0e..be047a472c70f 100644
--- a/app/code/Magento/PageCache/Test/Unit/Observer/FlushCacheByTagsTest.php
+++ b/app/code/Magento/PageCache/Test/Unit/Observer/FlushCacheByTagsTest.php
@@ -88,6 +88,9 @@ public function testExecute($cacheState)
         $this->_model->execute($observerObject);
     }
 
+    /**
+     * @return array
+     */
     public function flushCacheByTagsDataProvider()
     {
         return [
diff --git a/app/code/Magento/Payment/Test/Unit/Block/InfoTest.php b/app/code/Magento/Payment/Test/Unit/Block/InfoTest.php
index 3cac4c4fc3ed6..6485efafdfa5f 100644
--- a/app/code/Magento/Payment/Test/Unit/Block/InfoTest.php
+++ b/app/code/Magento/Payment/Test/Unit/Block/InfoTest.php
@@ -83,6 +83,9 @@ public function testGetIsSecureMode($isSecureMode, $methodInstance, $store, $sto
         $this->assertEquals($result, $expectedResult);
     }
 
+    /**
+     * @return array
+     */
     public function getIsSecureModeDataProvider()
     {
         return [
diff --git a/app/code/Magento/Payment/Test/Unit/Gateway/Data/Order/AddressAdapterTest.php b/app/code/Magento/Payment/Test/Unit/Gateway/Data/Order/AddressAdapterTest.php
index 0aea926135e4a..d429f5754ecbe 100644
--- a/app/code/Magento/Payment/Test/Unit/Gateway/Data/Order/AddressAdapterTest.php
+++ b/app/code/Magento/Payment/Test/Unit/Gateway/Data/Order/AddressAdapterTest.php
@@ -54,6 +54,9 @@ public function testStreetLine1($street, $expected)
         $this->assertEquals($expected, $this->model->getStreetLine1());
     }
 
+    /**
+     * @return array
+     */
     public function testStreetLine1DataProvider()
     {
         return [
@@ -73,6 +76,9 @@ public function testStreetLine2($street, $expected)
         $this->assertEquals($expected, $this->model->getStreetLine2());
     }
 
+    /**
+     * @return array
+     */
     public function testStreetLine2DataProvider()
     {
         return [
diff --git a/app/code/Magento/Payment/Test/Unit/Gateway/Data/Quote/AddressAdapterTest.php b/app/code/Magento/Payment/Test/Unit/Gateway/Data/Quote/AddressAdapterTest.php
index b416ac32a49a3..05b967ead3abc 100644
--- a/app/code/Magento/Payment/Test/Unit/Gateway/Data/Quote/AddressAdapterTest.php
+++ b/app/code/Magento/Payment/Test/Unit/Gateway/Data/Quote/AddressAdapterTest.php
@@ -54,6 +54,9 @@ public function testStreetLine1($street, $expected)
         $this->assertEquals($expected, $this->model->getStreetLine1());
     }
 
+    /**
+     * @return array
+     */
     public function testStreetLine1DataProvider()
     {
         return [
@@ -73,6 +76,9 @@ public function testStreetLine2($street, $expected)
         $this->assertEquals($expected, $this->model->getStreetLine2());
     }
 
+    /**
+     * @return array
+     */
     public function testStreetLine2DataProvider()
     {
         return [
diff --git a/app/code/Magento/Payment/Test/Unit/Gateway/Validator/CountryValidatorTest.php b/app/code/Magento/Payment/Test/Unit/Gateway/Validator/CountryValidatorTest.php
index 0d0dd2eb394f7..9d63f6466d7cb 100644
--- a/app/code/Magento/Payment/Test/Unit/Gateway/Validator/CountryValidatorTest.php
+++ b/app/code/Magento/Payment/Test/Unit/Gateway/Validator/CountryValidatorTest.php
@@ -68,6 +68,9 @@ public function testValidateAllowspecificTrue($storeId, $country, $allowspecific
         $this->assertSame($this->resultMock, $this->model->validate($validationSubject));
     }
 
+    /**
+     * @return array
+     */
     public function validateAllowspecificTrueDataProvider()
     {
         return [
@@ -96,6 +99,9 @@ public function testValidateAllowspecificFalse($storeId, $allowspecific, $isVali
         $this->assertSame($this->resultMock, $this->model->validate($validationSubject));
     }
 
+    /**
+     * @return array
+     */
     public function validateAllowspecificFalseDataProvider()
     {
         return [
diff --git a/app/code/Magento/Payment/Test/Unit/Gateway/Validator/ResultTest.php b/app/code/Magento/Payment/Test/Unit/Gateway/Validator/ResultTest.php
index 84ff41fff9e0a..6b1ecccf99f35 100644
--- a/app/code/Magento/Payment/Test/Unit/Gateway/Validator/ResultTest.php
+++ b/app/code/Magento/Payment/Test/Unit/Gateway/Validator/ResultTest.php
@@ -29,6 +29,9 @@ public function testResult($isValid, $failsDescription, $expectedIsValid, $expec
         $this->assertEquals($expectedFailsDescription, $this->model->getFailsDescription());
     }
 
+    /**
+     * @return array
+     */
     public function resultDataProvider()
     {
         $phraseMock = $this->getMockBuilder(\Magento\Framework\Phrase::class)->disableOriginalConstructor()->getMock();
diff --git a/app/code/Magento/Payment/Test/Unit/Helper/DataTest.php b/app/code/Magento/Payment/Test/Unit/Helper/DataTest.php
index 4c7cbcb7e9c75..35102c4ba119d 100644
--- a/app/code/Magento/Payment/Test/Unit/Helper/DataTest.php
+++ b/app/code/Magento/Payment/Test/Unit/Helper/DataTest.php
@@ -253,6 +253,9 @@ public function testGetInfoBlockHtml()
         $this->assertEquals($blockHtml, $this->helper->getInfoBlockHtml($infoMock, $storeId));
     }
 
+    /**
+     * @return array
+     */
     public function getSortMethodsDataProvider()
     {
         return [
diff --git a/app/code/Magento/Payment/Test/Unit/Model/Cart/SalesModel/FactoryTest.php b/app/code/Magento/Payment/Test/Unit/Model/Cart/SalesModel/FactoryTest.php
index b35aef2a3f123..3e603dead7e44 100644
--- a/app/code/Magento/Payment/Test/Unit/Model/Cart/SalesModel/FactoryTest.php
+++ b/app/code/Magento/Payment/Test/Unit/Model/Cart/SalesModel/FactoryTest.php
@@ -40,6 +40,9 @@ public function testCreate($salesModelClass, $expectedType)
         $this->assertEquals('some value', $this->_model->create($salesModel));
     }
 
+    /**
+     * @return array
+     */
     public function createDataProvider()
     {
         return [
diff --git a/app/code/Magento/Payment/Test/Unit/Model/Cart/SalesModel/OrderTest.php b/app/code/Magento/Payment/Test/Unit/Model/Cart/SalesModel/OrderTest.php
index 597b29cc2c03a..081e14b375b6b 100644
--- a/app/code/Magento/Payment/Test/Unit/Model/Cart/SalesModel/OrderTest.php
+++ b/app/code/Magento/Payment/Test/Unit/Model/Cart/SalesModel/OrderTest.php
@@ -19,6 +19,9 @@ protected function setUp()
         $this->_model = new \Magento\Payment\Model\Cart\SalesModel\Order($this->_orderMock);
     }
 
+    /**
+     * @return array
+     */
     public function gettersDataProvider()
     {
         return [
diff --git a/app/code/Magento/Payment/Test/Unit/Model/Cart/SalesModel/QuoteTest.php b/app/code/Magento/Payment/Test/Unit/Model/Cart/SalesModel/QuoteTest.php
index c4c11292f9e39..60f27645ee4c7 100644
--- a/app/code/Magento/Payment/Test/Unit/Model/Cart/SalesModel/QuoteTest.php
+++ b/app/code/Magento/Payment/Test/Unit/Model/Cart/SalesModel/QuoteTest.php
@@ -84,6 +84,9 @@ public function testGetAllItems($pItem, $name, $qty, $price)
         $this->assertEquals($expected, $this->_model->getAllItems());
     }
 
+    /**
+     * @return array
+     */
     public function getAllItemsDataProvider()
     {
         return [
@@ -135,6 +138,9 @@ public function testGetter($isVirtual, $getterMethod)
         $this->assertEquals($getterMethod, $model->{$getterMethod}());
     }
 
+    /**
+     * @return array
+     */
     public function getterDataProvider()
     {
         return [
diff --git a/app/code/Magento/Payment/Test/Unit/Model/ConfigTest.php b/app/code/Magento/Payment/Test/Unit/Model/ConfigTest.php
index 1694ac7133eaa..c42fe02fd807c 100644
--- a/app/code/Magento/Payment/Test/Unit/Model/ConfigTest.php
+++ b/app/code/Magento/Payment/Test/Unit/Model/ConfigTest.php
@@ -150,6 +150,9 @@ public function testGetActiveMethods($isActive)
         static::assertEquals($isActive ? ['active_method' => $adapter] : [], $this->config->getActiveMethods());
     }
 
+    /**
+     * @return array
+     */
     public function getActiveMethodsDataProvider()
     {
         return [[true], [false]];
diff --git a/app/code/Magento/Paypal/Test/Unit/Block/Adminhtml/Store/SwitcherPluginTest.php b/app/code/Magento/Paypal/Test/Unit/Block/Adminhtml/Store/SwitcherPluginTest.php
index ebbe2f9925a48..ea4c0134366a1 100644
--- a/app/code/Magento/Paypal/Test/Unit/Block/Adminhtml/Store/SwitcherPluginTest.php
+++ b/app/code/Magento/Paypal/Test/Unit/Block/Adminhtml/Store/SwitcherPluginTest.php
@@ -37,6 +37,9 @@ public function testAroundGetUrl($countryParam, $getUrlParams)
         $this->assertEquals(['', $getUrlParams], $this->_model->aroundGetUrl($subject, $getUrl, '', []));
     }
 
+    /**
+     * @return array
+     */
     public function aroundGetUrlDataProvider()
     {
         return [
diff --git a/app/code/Magento/Paypal/Test/Unit/Block/Adminhtml/System/Config/Field/CountryTest.php b/app/code/Magento/Paypal/Test/Unit/Block/Adminhtml/System/Config/Field/CountryTest.php
index ee6843473dd61..ec9c72c3c63d1 100644
--- a/app/code/Magento/Paypal/Test/Unit/Block/Adminhtml/System/Config/Field/CountryTest.php
+++ b/app/code/Magento/Paypal/Test/Unit/Block/Adminhtml/System/Config/Field/CountryTest.php
@@ -114,6 +114,9 @@ public function testRender($requestCountry, $requestDefaultCountry, $canUseDefau
         $this->_model->render($this->_element);
     }
 
+    /**
+     * @return array
+     */
     public function renderDataProvider()
     {
         return [
diff --git a/app/code/Magento/Paypal/Test/Unit/Block/Adminhtml/System/Config/Fieldset/GroupTest.php b/app/code/Magento/Paypal/Test/Unit/Block/Adminhtml/System/Config/Fieldset/GroupTest.php
index c712b08f6cfcf..fa7f2cc726f60 100644
--- a/app/code/Magento/Paypal/Test/Unit/Block/Adminhtml/System/Config/Fieldset/GroupTest.php
+++ b/app/code/Magento/Paypal/Test/Unit/Block/Adminhtml/System/Config/Fieldset/GroupTest.php
@@ -93,6 +93,9 @@ public function testIsCollapseState($expanded, $expected)
         );
     }
 
+    /**
+     * @return array
+     */
     public function isCollapseStateDataProvider()
     {
         return [
diff --git a/app/code/Magento/Paypal/Test/Unit/Block/Adminhtml/System/Config/Fieldset/PaymentTest.php b/app/code/Magento/Paypal/Test/Unit/Block/Adminhtml/System/Config/Fieldset/PaymentTest.php
index 37ea9fd4018ca..b4baefea51659 100644
--- a/app/code/Magento/Paypal/Test/Unit/Block/Adminhtml/System/Config/Fieldset/PaymentTest.php
+++ b/app/code/Magento/Paypal/Test/Unit/Block/Adminhtml/System/Config/Fieldset/PaymentTest.php
@@ -85,6 +85,9 @@ public function testIsPaymentEnabled($groupConfig, $expected)
         $this->assertContains($expected, $html);
     }
 
+    /**
+     * @return array
+     */
     public function isPaymentEnabledDataProvider()
     {
         return [
diff --git a/app/code/Magento/Paypal/Test/Unit/Block/Express/ReviewTest.php b/app/code/Magento/Paypal/Test/Unit/Block/Express/ReviewTest.php
index c1411a98a5197..17f988ca14bf6 100644
--- a/app/code/Magento/Paypal/Test/Unit/Block/Express/ReviewTest.php
+++ b/app/code/Magento/Paypal/Test/Unit/Block/Express/ReviewTest.php
@@ -81,6 +81,9 @@ public function testGetViewFileUrl($isSecure)
         $this->assertEquals('result url', $this->model->getViewFileUrl('some file'));
     }
 
+    /**
+     * @return array
+     */
     public function getViewFileUrlDataProvider()
     {
         return [[true], [false]];
diff --git a/app/code/Magento/Paypal/Test/Unit/Controller/Express/PlaceOrderTest.php b/app/code/Magento/Paypal/Test/Unit/Controller/Express/PlaceOrderTest.php
index f14827f4c5f5c..6a94eb9fa0f2a 100644
--- a/app/code/Magento/Paypal/Test/Unit/Controller/Express/PlaceOrderTest.php
+++ b/app/code/Magento/Paypal/Test/Unit/Controller/Express/PlaceOrderTest.php
@@ -36,6 +36,9 @@ protected function _expectRedirect($path = '*/*/review')
             ->with($this->anything(), $path, []);
     }
 
+    /**
+     * @return array
+     */
     public function trueFalseDataProvider()
     {
         return [[true], [false]];
@@ -79,6 +82,9 @@ public function testExecuteProcessableException($code, $paymentAction = null)
         $this->model->execute();
     }
 
+    /**
+     * @return array
+     */
     public function executeProcessableExceptionDataProvider()
     {
         return [
diff --git a/app/code/Magento/Paypal/Test/Unit/Controller/Express/ReturnActionTest.php b/app/code/Magento/Paypal/Test/Unit/Controller/Express/ReturnActionTest.php
index fd0182bb88c06..65250ccce08bd 100644
--- a/app/code/Magento/Paypal/Test/Unit/Controller/Express/ReturnActionTest.php
+++ b/app/code/Magento/Paypal/Test/Unit/Controller/Express/ReturnActionTest.php
@@ -34,6 +34,9 @@ public function testExecuteAuthorizationRetrial()
         $this->model->execute();
     }
 
+    /**
+     * @return array
+     */
     public function trueFalseDataProvider()
     {
         return [[true], [false]];
diff --git a/app/code/Magento/Paypal/Test/Unit/Controller/Express/StartTest.php b/app/code/Magento/Paypal/Test/Unit/Controller/Express/StartTest.php
index 5ca7156b6f01f..36a9ae3bd5cf9 100644
--- a/app/code/Magento/Paypal/Test/Unit/Controller/Express/StartTest.php
+++ b/app/code/Magento/Paypal/Test/Unit/Controller/Express/StartTest.php
@@ -37,6 +37,9 @@ public function testStartAction($buttonParam)
         $this->model->execute();
     }
 
+    /**
+     * @return array
+     */
     public function startActionDataProvider()
     {
         return [['1'], [null]];
diff --git a/app/code/Magento/Paypal/Test/Unit/Controller/Payflow/ReturnUrlTest.php b/app/code/Magento/Paypal/Test/Unit/Controller/Payflow/ReturnUrlTest.php
index 6a015464aa677..77240eb9755ee 100644
--- a/app/code/Magento/Paypal/Test/Unit/Controller/Payflow/ReturnUrlTest.php
+++ b/app/code/Magento/Paypal/Test/Unit/Controller/Payflow/ReturnUrlTest.php
@@ -419,6 +419,10 @@ public function testCheckAdvancedAcceptingByPaymentMethod()
         $payflowadvancedReturnUrl->execute();
     }
 
+    /**
+     * @param $orderId
+     * @param $state
+     */
     private function initOrderMock($orderId, $state)
     {
         $this->orderFactory
@@ -466,6 +470,10 @@ private function initLayoutMock()
             ->will($this->returnValue($this->block));
     }
 
+    /**
+     * @param $orderId
+     * @param $restoreQuote
+     */
     private function initcheckoutSession($orderId, $restoreQuote)
     {
         $this->checkoutSession
diff --git a/app/code/Magento/Paypal/Test/Unit/Helper/BackendTest.php b/app/code/Magento/Paypal/Test/Unit/Helper/BackendTest.php
index 0b00ecc5bbaa8..4724c42ffe979 100644
--- a/app/code/Magento/Paypal/Test/Unit/Helper/BackendTest.php
+++ b/app/code/Magento/Paypal/Test/Unit/Helper/BackendTest.php
@@ -92,6 +92,9 @@ public function testGetConfigurationCountryCodeFromConfig($request)
         $this->configurationCountryCodeAssertResult('GB');
     }
 
+    /**
+     * @return array
+     */
     public function getConfigurationCountryCodeFromConfigDataProvider()
     {
         return [
@@ -116,6 +119,9 @@ public function testGetConfigurationCountryCodeFromDefault($request, $config, $d
         $this->configurationCountryCodeAssertResult($default);
     }
 
+    /**
+     * @return array
+     */
     public function getConfigurationCountryCodeFromDefaultDataProvider()
     {
         return [
diff --git a/app/code/Magento/Paypal/Test/Unit/Model/AbstractConfigTest.php b/app/code/Magento/Paypal/Test/Unit/Model/AbstractConfigTest.php
index 2556ec758775c..73f6454b8d46f 100644
--- a/app/code/Magento/Paypal/Test/Unit/Model/AbstractConfigTest.php
+++ b/app/code/Magento/Paypal/Test/Unit/Model/AbstractConfigTest.php
@@ -273,6 +273,9 @@ public function testIsMethodAvailable($methodCode, $expectedFlag)
         $this->config->isMethodAvailable($methodCode);
     }
 
+    /**
+     * @return array
+     */
     public function isMethodAvailableDataProvider()
     {
         return [
diff --git a/app/code/Magento/Paypal/Test/Unit/Model/Api/NvpTest.php b/app/code/Magento/Paypal/Test/Unit/Model/Api/NvpTest.php
index 2cbaba2501910..dd7b6c313adb2 100644
--- a/app/code/Magento/Paypal/Test/Unit/Model/Api/NvpTest.php
+++ b/app/code/Magento/Paypal/Test/Unit/Model/Api/NvpTest.php
@@ -152,6 +152,9 @@ public function testCall($response, $processableErrors, $exception, $exceptionMe
         $this->model->call('some method', ['data' => 'some data']);
     }
 
+    /**
+     * @return array
+     */
     public function callDataProvider()
     {
         return [
diff --git a/app/code/Magento/Paypal/Test/Unit/Model/CartTest.php b/app/code/Magento/Paypal/Test/Unit/Model/CartTest.php
index cac2d01d74e2e..e596bd6b97879 100644
--- a/app/code/Magento/Paypal/Test/Unit/Model/CartTest.php
+++ b/app/code/Magento/Paypal/Test/Unit/Model/CartTest.php
@@ -85,6 +85,9 @@ public function testInvalidGetAllItems($items)
         $this->assertEquals(0.3, $this->_model->getDiscount());
     }
 
+    /**
+     * @return array
+     */
     public function invalidGetAllItemsDataProvider()
     {
         return [
@@ -150,6 +153,9 @@ public function testInvalidTotalsGetAllItems($values, $transferDiscount)
         $this->assertEquals($transferDiscount ? 0.0 : $values['base_discount_amount'], $this->_model->getDiscount());
     }
 
+    /**
+     * @return array
+     */
     public function invalidTotalsGetAllItemsDataProvider()
     {
         return [
@@ -222,6 +228,9 @@ public function testInvalidGetAmounts($values, $transferDiscount, $transferShipp
         $this->assertEquals([Cart::AMOUNT_SUBTOTAL => $expectedSubtotal], $result);
     }
 
+    /**
+     * @return array
+     */
     public function invalidGetAmountsDataProvider()
     {
         $data = [];
diff --git a/app/code/Magento/Paypal/Test/Unit/Model/Config/Structure/Element/FieldPluginTest.php b/app/code/Magento/Paypal/Test/Unit/Model/Config/Structure/Element/FieldPluginTest.php
index c3f6c677a7cec..d4b6751985a8c 100644
--- a/app/code/Magento/Paypal/Test/Unit/Model/Config/Structure/Element/FieldPluginTest.php
+++ b/app/code/Magento/Paypal/Test/Unit/Model/Config/Structure/Element/FieldPluginTest.php
@@ -70,6 +70,9 @@ public function testAroundGetConfigPath($subjectPath, $expectedConfigPath)
         $this->assertEquals($expectedConfigPath, $this->model->aroundGetConfigPath($this->subject, $callback));
     }
 
+    /**
+     * @return array
+     */
     public function aroundGetConfigPathDataProvider()
     {
         return [
diff --git a/app/code/Magento/Paypal/Test/Unit/Model/Config/Structure/PaymentSectionModifierTest.php b/app/code/Magento/Paypal/Test/Unit/Model/Config/Structure/PaymentSectionModifierTest.php
index f5a470dd384df..8eead7d6938a1 100644
--- a/app/code/Magento/Paypal/Test/Unit/Model/Config/Structure/PaymentSectionModifierTest.php
+++ b/app/code/Magento/Paypal/Test/Unit/Model/Config/Structure/PaymentSectionModifierTest.php
@@ -151,6 +151,10 @@ public function testMovedToTargetSpecialGroup()
         );
     }
 
+    /**
+     * @param $structure
+     * @return array
+     */
     private function fetchAllAvailableGroups($structure)
     {
         $availableGroups = [];
diff --git a/app/code/Magento/Paypal/Test/Unit/Model/Config/StructurePluginTest.php b/app/code/Magento/Paypal/Test/Unit/Model/Config/StructurePluginTest.php
index 5ef12b39b7373..2abc2b48aa51d 100644
--- a/app/code/Magento/Paypal/Test/Unit/Model/Config/StructurePluginTest.php
+++ b/app/code/Magento/Paypal/Test/Unit/Model/Config/StructurePluginTest.php
@@ -75,6 +75,9 @@ public function testAroundGetElementByPathPartsNonPayment($pathParts, $returnRes
         );
     }
 
+    /**
+     * @return array
+     */
     public function aroundGetElementByPathPartsNonPaymentDataProvider()
     {
         return [
@@ -118,6 +121,9 @@ public function testAroundGetElementByPathParts($pathParts, $countryCode, $expec
         );
     }
 
+    /**
+     * @return array
+     */
     public function aroundGetElementByPathPartsDataProvider()
     {
         return [
@@ -180,6 +186,9 @@ public function testAroundGetSectionByPathParts($pathParts, $countryCode, $expec
         $this->_aroundGetElementByPathPartsAssertResult($result, $getElementByPathParts, $pathParts);
     }
 
+    /**
+     * @return array
+     */
     public function aroundGetSectionByPathPartsDataProvider()
     {
         return [
diff --git a/app/code/Magento/Paypal/Test/Unit/Model/Hostedpro/RequestTest.php b/app/code/Magento/Paypal/Test/Unit/Model/Hostedpro/RequestTest.php
index 8e9b40fce09d0..1b1ae10c866d0 100644
--- a/app/code/Magento/Paypal/Test/Unit/Model/Hostedpro/RequestTest.php
+++ b/app/code/Magento/Paypal/Test/Unit/Model/Hostedpro/RequestTest.php
@@ -371,6 +371,9 @@ public function amountWithoutTaxDataProvider()
         ];
     }
 
+    /**
+     * @return array
+     */
     public function amountWithoutTaxZeroSubtotalDataProvider()
     {
         return [
diff --git a/app/code/Magento/Paypal/Test/Unit/Model/Method/Checks/SpecificationPluginTest.php b/app/code/Magento/Paypal/Test/Unit/Model/Method/Checks/SpecificationPluginTest.php
index ce3b46a24bd42..1a3e0bf294db6 100644
--- a/app/code/Magento/Paypal/Test/Unit/Model/Method/Checks/SpecificationPluginTest.php
+++ b/app/code/Magento/Paypal/Test/Unit/Model/Method/Checks/SpecificationPluginTest.php
@@ -89,6 +89,9 @@ public function testAroundIsApplicable($count)
         $this->assertEquals($count > 0, $this->callAroundIsApplicable($proceed, $paymentMethod, $quote));
     }
 
+    /**
+     * @return array
+     */
     public function aroundIsApplicableDataProvider()
     {
         return [[0], [1], [2]];
diff --git a/app/code/Magento/Paypal/Test/Unit/Model/PayflowproTest.php b/app/code/Magento/Paypal/Test/Unit/Model/PayflowproTest.php
index a105dc602289e..547afc219fb86 100644
--- a/app/code/Magento/Paypal/Test/Unit/Model/PayflowproTest.php
+++ b/app/code/Magento/Paypal/Test/Unit/Model/PayflowproTest.php
@@ -203,6 +203,9 @@ public function testSetTransStatus($response, $paymentExpected)
         $this->assertEquals($paymentExpected->getData(), $payment->getData());
     }
 
+    /**
+     * @return array
+     */
     public function setTransStatusDataProvider()
     {
         return [
diff --git a/app/code/Magento/Paypal/Test/Unit/Observer/AddBillingAgreementToSessionObserverTest.php b/app/code/Magento/Paypal/Test/Unit/Observer/AddBillingAgreementToSessionObserverTest.php
index 8d804f50bca55..498cdd60c2cc9 100644
--- a/app/code/Magento/Paypal/Test/Unit/Observer/AddBillingAgreementToSessionObserverTest.php
+++ b/app/code/Magento/Paypal/Test/Unit/Observer/AddBillingAgreementToSessionObserverTest.php
@@ -169,6 +169,9 @@ public function testAddBillingAgreementToSession($isValid)
         $this->_model->execute($this->_observer);
     }
 
+    /**
+     * @return array
+     */
     public function addBillingAgreementToSessionDataProvider()
     {
         return [[true], [false]];
diff --git a/app/code/Magento/Paypal/Test/Unit/Observer/RestrictAdminBillingAgreementUsageObserverTest.php b/app/code/Magento/Paypal/Test/Unit/Observer/RestrictAdminBillingAgreementUsageObserverTest.php
index 85bc73f9ad027..049fd2159fab7 100644
--- a/app/code/Magento/Paypal/Test/Unit/Observer/RestrictAdminBillingAgreementUsageObserverTest.php
+++ b/app/code/Magento/Paypal/Test/Unit/Observer/RestrictAdminBillingAgreementUsageObserverTest.php
@@ -48,6 +48,9 @@ protected function setUp()
         $this->_model = new \Magento\Paypal\Observer\RestrictAdminBillingAgreementUsageObserver($this->_authorization);
     }
 
+    /**
+     * @return array
+     */
     public function restrictAdminBillingAgreementUsageDataProvider()
     {
         return [
diff --git a/app/code/Magento/ProductAlert/Test/Unit/Block/Email/StockTest.php b/app/code/Magento/ProductAlert/Test/Unit/Block/Email/StockTest.php
index fe9d97267f3a7..8471882a76f23 100644
--- a/app/code/Magento/ProductAlert/Test/Unit/Block/Email/StockTest.php
+++ b/app/code/Magento/ProductAlert/Test/Unit/Block/Email/StockTest.php
@@ -61,6 +61,9 @@ public function testGetFilteredContent($contentToFilter, $contentFiltered)
         $this->assertEquals($contentFiltered, $this->_block->getFilteredContent($contentToFilter));
     }
 
+    /**
+     * @return array
+     */
     public function testGetFilteredContentDataProvider()
     {
         return [
diff --git a/app/code/Magento/ProductAlert/Test/Unit/Block/Product/View/StockTest.php b/app/code/Magento/ProductAlert/Test/Unit/Block/Product/View/StockTest.php
index cab2f463fa091..36a312ce00650 100644
--- a/app/code/Magento/ProductAlert/Test/Unit/Block/Product/View/StockTest.php
+++ b/app/code/Magento/ProductAlert/Test/Unit/Block/Product/View/StockTest.php
@@ -132,6 +132,9 @@ public function testSetTemplateStockUrlNotAllowed($stockAlertAllowed, $productAv
         $this->assertNull($this->_block->getSignupUrl());
     }
 
+    /**
+     * @return array
+     */
     public function setTemplateStockUrlNotAllowedDataProvider()
     {
         return [
diff --git a/app/code/Magento/Quote/Test/Unit/Model/Cart/CartTotalManagementTest.php b/app/code/Magento/Quote/Test/Unit/Model/Cart/CartTotalManagementTest.php
index b03cf698e2c01..d6c685562b30d 100644
--- a/app/code/Magento/Quote/Test/Unit/Model/Cart/CartTotalManagementTest.php
+++ b/app/code/Magento/Quote/Test/Unit/Model/Cart/CartTotalManagementTest.php
@@ -93,6 +93,9 @@ public function testCollectTotalsNoShipping($shippingCarrierCode, $shippingMetho
         );
     }
 
+    /**
+     * @return array
+     */
     public function collectTotalsShippingData()
     {
         return [
diff --git a/app/code/Magento/Quote/Test/Unit/Model/Cart/CartTotalRepositoryTest.php b/app/code/Magento/Quote/Test/Unit/Model/Cart/CartTotalRepositoryTest.php
index eaae0d7fc16b2..72f38370b7e09 100644
--- a/app/code/Magento/Quote/Test/Unit/Model/Cart/CartTotalRepositoryTest.php
+++ b/app/code/Magento/Quote/Test/Unit/Model/Cart/CartTotalRepositoryTest.php
@@ -178,6 +178,9 @@ public function testGet($isVirtual, $getAddressType)
         $this->assertEquals($totalsMock, $this->model->get($cartId));
     }
 
+    /**
+     * @return array
+     */
     public function getDataProvider()
     {
         return [
diff --git a/app/code/Magento/Quote/Test/Unit/Model/Quote/Address/Total/SubtotalTest.php b/app/code/Magento/Quote/Test/Unit/Model/Quote/Address/Total/SubtotalTest.php
index e4f31106e1e25..6f082b0d957d7 100644
--- a/app/code/Magento/Quote/Test/Unit/Model/Quote/Address/Total/SubtotalTest.php
+++ b/app/code/Magento/Quote/Test/Unit/Model/Quote/Address/Total/SubtotalTest.php
@@ -51,6 +51,9 @@ protected function setUp()
         );
     }
 
+    /**
+     * @return array
+     */
     public function collectDataProvider()
     {
         return [
diff --git a/app/code/Magento/Quote/Test/Unit/Model/Quote/Address/TotalTest.php b/app/code/Magento/Quote/Test/Unit/Model/Quote/Address/TotalTest.php
index 1999900538a8b..84cb13acafb76 100644
--- a/app/code/Magento/Quote/Test/Unit/Model/Quote/Address/TotalTest.php
+++ b/app/code/Magento/Quote/Test/Unit/Model/Quote/Address/TotalTest.php
@@ -33,6 +33,9 @@ public function testSetTotalAmount($code, $amount, $storedCode)
         $this->assertSame($this->model, $result);
     }
 
+    /**
+     * @return array
+     */
     public function setTotalAmountDataProvider()
     {
         return [
@@ -64,6 +67,9 @@ public function testSetBaseTotalAmount($code, $amount, $storedCode)
         $this->assertSame($this->model, $result);
     }
 
+    /**
+     * @return array
+     */
     public function setBaseTotalAmountDataProvider()
     {
         return [
@@ -95,6 +101,9 @@ public function testAddTotalAmount($initialAmount, $delta, $updatedAmount)
         $this->assertEquals($updatedAmount, $this->model->getTotalAmount($code));
     }
 
+    /**
+     * @return array
+     */
     public function addTotalAmountDataProvider()
     {
         return [
@@ -126,6 +135,9 @@ public function testAddBaseTotalAmount($initialAmount, $delta, $updatedAmount)
         $this->assertEquals($updatedAmount, $this->model->getBaseTotalAmount($code));
     }
 
+    /**
+     * @return array
+     */
     public function addBaseTotalAmountDataProvider()
     {
         return [
diff --git a/app/code/Magento/Quote/Test/Unit/Model/Quote/Item/RelatedProductsTest.php b/app/code/Magento/Quote/Test/Unit/Model/Quote/Item/RelatedProductsTest.php
index f6c07d63b92a7..2469bd5402fdd 100644
--- a/app/code/Magento/Quote/Test/Unit/Model/Quote/Item/RelatedProductsTest.php
+++ b/app/code/Magento/Quote/Test/Unit/Model/Quote/Item/RelatedProductsTest.php
@@ -64,6 +64,9 @@ public function testGetRelatedProductIds($optionValue, $productId, $expectedResu
      *
      * @return array
      */
+    /**
+     * @return array
+     */
     public function getRelatedProductIdsDataProvider()
     {
         return [
diff --git a/app/code/Magento/Quote/Test/Unit/Model/Quote/Item/UpdaterTest.php b/app/code/Magento/Quote/Test/Unit/Model/Quote/Item/UpdaterTest.php
index f51e4d5615ec7..4592d72a7af65 100644
--- a/app/code/Magento/Quote/Test/Unit/Model/Quote/Item/UpdaterTest.php
+++ b/app/code/Magento/Quote/Test/Unit/Model/Quote/Item/UpdaterTest.php
@@ -143,6 +143,9 @@ public function testUpdateNotQtyDecimal($qty, $expectedQty)
         $this->object->update($this->itemMock, ['qty' => $qty]);
     }
 
+    /**
+     * @return array
+     */
     public function qtyProvider()
     {
         return [
@@ -155,6 +158,9 @@ public function qtyProvider()
         ];
     }
 
+    /**
+     * @return array
+     */
     public function qtyProviderDecimal()
     {
         return [
diff --git a/app/code/Magento/Quote/Test/Unit/Model/Quote/ItemTest.php b/app/code/Magento/Quote/Test/Unit/Model/Quote/ItemTest.php
index 2530477bdf747..615321588c7c0 100644
--- a/app/code/Magento/Quote/Test/Unit/Model/Quote/ItemTest.php
+++ b/app/code/Magento/Quote/Test/Unit/Model/Quote/ItemTest.php
@@ -411,6 +411,16 @@ public function testSetProductWithQuoteAndStockItem()
         $this->assertEquals($isQtyDecimal, $this->model->getIsQtyDecimal());
     }
 
+    /**
+     * @param $productId
+     * @param $productType
+     * @param $productSku
+     * @param $productName
+     * @param $productWeight
+     * @param $productTaxClassId
+     * @param $productCost
+     * @return \PHPUnit_Framework_MockObject_MockObject
+     */
     private function generateProductMock(
         $productId,
         $productType,
@@ -846,6 +856,11 @@ public function testSetOptionsWithNull()
         $this->assertEquals($this->model, $this->model->setOptions(null));
     }
 
+    /**
+     * @param $optionCode
+     * @param array $optionData
+     * @return \PHPUnit_Framework_MockObject_MockObject
+     */
     private function createOptionMock($optionCode, $optionData = [])
     {
         $optionMock = $this->getMockBuilder('Magento\Quote\Model\Quote\Item\Option')
diff --git a/app/code/Magento/Quote/Test/Unit/Model/QuoteTest.php b/app/code/Magento/Quote/Test/Unit/Model/QuoteTest.php
index 684b68cd25a13..3f460cbe460c6 100644
--- a/app/code/Magento/Quote/Test/Unit/Model/QuoteTest.php
+++ b/app/code/Magento/Quote/Test/Unit/Model/QuoteTest.php
@@ -672,6 +672,9 @@ public function testGetAddressById($addressId, $expected)
         $this->assertEquals((bool)$expected, (bool)$result);
     }
 
+    /**
+     * @return array
+     */
     public static function dataProviderGetAddress()
     {
         return [
@@ -713,6 +716,9 @@ public function testGetAddressByCustomerAddressId($isDeleted, $customerAddressId
         $this->assertEquals((bool)$expected, (bool)$result);
     }
 
+    /**
+     * @return array
+     */
     public static function dataProviderGetAddressByCustomer()
     {
         return [
@@ -759,6 +765,9 @@ public function testGetShippingAddressByCustomerAddressId($isDeleted, $addressTy
         $this->assertEquals($expected, (bool)$result);
     }
 
+    /**
+     * @return array
+     */
     public static function dataProviderShippingAddress()
     {
         return [
diff --git a/app/code/Magento/Quote/Test/Unit/Observer/Backend/CustomerQuoteObserverTest.php b/app/code/Magento/Quote/Test/Unit/Observer/Backend/CustomerQuoteObserverTest.php
index 77839ff279ae1..57ac5a18defa2 100644
--- a/app/code/Magento/Quote/Test/Unit/Observer/Backend/CustomerQuoteObserverTest.php
+++ b/app/code/Magento/Quote/Test/Unit/Observer/Backend/CustomerQuoteObserverTest.php
@@ -160,6 +160,9 @@ public function testDispatch($isWebsiteScope, $websites)
         $this->customerQuote->execute($this->observerMock);
     }
 
+    /**
+     * @return array
+     */
     public function dispatchDataProvider()
     {
         return [
diff --git a/app/code/Magento/Review/Test/Unit/Block/FormTest.php b/app/code/Magento/Review/Test/Unit/Block/FormTest.php
index ed827f0e740d4..141d8cca3d53d 100644
--- a/app/code/Magento/Review/Test/Unit/Block/FormTest.php
+++ b/app/code/Magento/Review/Test/Unit/Block/FormTest.php
@@ -125,6 +125,9 @@ public function testGetAction($isSecure, $actionUrl, $productId)
         $this->assertEquals($actionUrl . '/id/' . $productId, $this->object->getAction());
     }
 
+    /**
+     * @return array
+     */
     public function getActionDataProvider()
     {
         return [
diff --git a/app/code/Magento/Review/Test/Unit/Block/Product/ReviewTest.php b/app/code/Magento/Review/Test/Unit/Block/Product/ReviewTest.php
index bf04ebdcc483d..7c99f9b064b84 100644
--- a/app/code/Magento/Review/Test/Unit/Block/Product/ReviewTest.php
+++ b/app/code/Magento/Review/Test/Unit/Block/Product/ReviewTest.php
@@ -201,6 +201,9 @@ public function testGetProductReviewUrl($isSecure, $actionUrl, $productId)
         $this->assertEquals($actionUrl . '/id/' . $productId, $this->block->getProductReviewUrl());
     }
 
+    /**
+     * @return array
+     */
     public function getProductReviewUrlDataProvider()
     {
         return [
diff --git a/app/code/Magento/Review/Test/Unit/Model/ResourceModel/Review/CollectionTest.php b/app/code/Magento/Review/Test/Unit/Model/ResourceModel/Review/CollectionTest.php
index 3bfccbf6600ae..04268af2cae07 100644
--- a/app/code/Magento/Review/Test/Unit/Model/ResourceModel/Review/CollectionTest.php
+++ b/app/code/Magento/Review/Test/Unit/Model/ResourceModel/Review/CollectionTest.php
@@ -148,6 +148,9 @@ public function testAddEntityFilter(
         $this->model->addEntityFilter($entity, $pkValue);
     }
 
+    /**
+     * @return array
+     */
     public function addEntityFilterDataProvider()
     {
         return [
diff --git a/app/code/Magento/Review/Test/Unit/Ui/DataProvider/Product/Form/Modifier/ReviewTest.php b/app/code/Magento/Review/Test/Unit/Ui/DataProvider/Product/Form/Modifier/ReviewTest.php
index 4be6aebb27f50..4d478b52688a9 100644
--- a/app/code/Magento/Review/Test/Unit/Ui/DataProvider/Product/Form/Modifier/ReviewTest.php
+++ b/app/code/Magento/Review/Test/Unit/Ui/DataProvider/Product/Form/Modifier/ReviewTest.php
@@ -26,6 +26,9 @@ protected function setUp()
             ->getMockForAbstractClass();
     }
 
+    /**
+     * @return \Magento\Ui\DataProvider\Modifier\ModifierInterface|object
+     */
     protected function createModel()
     {
         return $this->objectManager->getObject(Review::class, [
diff --git a/app/code/Magento/Rule/Test/Unit/Model/Condition/AbstractConditionTest.php b/app/code/Magento/Rule/Test/Unit/Model/Condition/AbstractConditionTest.php
index d0894be4ba34a..25a1482bf09e4 100644
--- a/app/code/Magento/Rule/Test/Unit/Model/Condition/AbstractConditionTest.php
+++ b/app/code/Magento/Rule/Test/Unit/Model/Condition/AbstractConditionTest.php
@@ -40,6 +40,9 @@ public function testGetMappedSqlField()
         $this->assertEquals('category_ids', $this->_condition->getMappedSqlField());
     }
 
+    /**
+     * @return array
+     */
     public function validateAttributeDataProvider()
     {
         return [
@@ -149,6 +152,9 @@ public function testValidate($existingValue, $operator, $valueForValidate, $expe
         );
     }
 
+    /**
+     * @return array
+     */
     public function validateAttributeArrayInputTypeDataProvider()
     {
         return [
diff --git a/app/code/Magento/Rule/Test/Unit/Model/ResourceModel/Rule/Collection/AbstractCollectionTest.php b/app/code/Magento/Rule/Test/Unit/Model/ResourceModel/Rule/Collection/AbstractCollectionTest.php
index a758734f0caf4..f3f646eb2066b 100644
--- a/app/code/Magento/Rule/Test/Unit/Model/ResourceModel/Rule/Collection/AbstractCollectionTest.php
+++ b/app/code/Magento/Rule/Test/Unit/Model/ResourceModel/Rule/Collection/AbstractCollectionTest.php
@@ -89,6 +89,9 @@ protected function setUp()
         );
     }
 
+    /**
+     * @return array
+     */
     public function testAddWebsitesToResultDataProvider()
     {
         return [
diff --git a/app/code/Magento/Sales/Model/Order/Payment.php b/app/code/Magento/Sales/Model/Order/Payment.php
index 7c30d933e354a..688976e648bc4 100644
--- a/app/code/Magento/Sales/Model/Order/Payment.php
+++ b/app/code/Magento/Sales/Model/Order/Payment.php
@@ -1146,6 +1146,10 @@ public function addTransaction($type, $salesDocument = null, $failSafe = false)
         return $builder->build($type);
     }
 
+    /**
+     * @param $transaction
+     * @param $message
+     */
     public function addTransactionCommentsToOrder($transaction, $message)
     {
         $order = $this->getOrder();
diff --git a/app/code/Magento/Sales/Test/Unit/Block/Adminhtml/Order/Create/Items/GridTest.php b/app/code/Magento/Sales/Test/Unit/Block/Adminhtml/Order/Create/Items/GridTest.php
index 3788272ef9ff2..95fa51e72a3cc 100644
--- a/app/code/Magento/Sales/Test/Unit/Block/Adminhtml/Order/Create/Items/GridTest.php
+++ b/app/code/Magento/Sales/Test/Unit/Block/Adminhtml/Order/Create/Items/GridTest.php
@@ -280,6 +280,9 @@ public function testGetItems()
         $this->assertEquals(true, $this->block->getQuote()->getIsSuperMode());
     }
 
+    /**
+     * @return \Magento\Sales\Block\Adminhtml\Order\Create\Items\Grid
+     */
     protected function getGrid()
     {
         /** @var \Magento\Sales\Block\Adminhtml\Order\Create\Items\Grid  $grid */
diff --git a/app/code/Magento/Sales/Test/Unit/Block/Adminhtml/Order/Create/Sidebar/AbstractSidebarTest.php b/app/code/Magento/Sales/Test/Unit/Block/Adminhtml/Order/Create/Sidebar/AbstractSidebarTest.php
index ad8f237baf165..59c1c80ee1ab3 100644
--- a/app/code/Magento/Sales/Test/Unit/Block/Adminhtml/Order/Create/Sidebar/AbstractSidebarTest.php
+++ b/app/code/Magento/Sales/Test/Unit/Block/Adminhtml/Order/Create/Sidebar/AbstractSidebarTest.php
@@ -39,6 +39,9 @@ public function testGetItemQty($itemQty, $qty, $expectedValue)
         $this->assertEquals($expectedValue, $this->abstractSidebar->getItemQty($this->itemMock));
     }
 
+    /**
+     * @return array
+     */
     public function getItemQtyDataProvider()
     {
         return ['whenQtyIsset' => [2, 10, 10], 'whenQtyNotIsset' => [1, false, 1]];
diff --git a/app/code/Magento/Sales/Test/Unit/Block/Adminhtml/Order/Invoice/ViewTest.php b/app/code/Magento/Sales/Test/Unit/Block/Adminhtml/Order/Invoice/ViewTest.php
index 963b8d75a6e02..a1fe59e235cda 100644
--- a/app/code/Magento/Sales/Test/Unit/Block/Adminhtml/Order/Invoice/ViewTest.php
+++ b/app/code/Magento/Sales/Test/Unit/Block/Adminhtml/Order/Invoice/ViewTest.php
@@ -51,6 +51,9 @@ public function testIsPaymentReview($canReviewPayment, $canFetchUpdate, $expecte
         $this->assertEquals($expectedResult, $testMethod->invoke($block));
     }
 
+    /**
+     * @return array
+     */
     public function isPaymentReviewDataProvider()
     {
         return [
diff --git a/app/code/Magento/Sales/Test/Unit/Controller/Adminhtml/Order/Create/ProcessDataTest.php b/app/code/Magento/Sales/Test/Unit/Controller/Adminhtml/Order/Create/ProcessDataTest.php
index 792d46afd6c01..a80a09361188f 100644
--- a/app/code/Magento/Sales/Test/Unit/Controller/Adminhtml/Order/Create/ProcessDataTest.php
+++ b/app/code/Magento/Sales/Test/Unit/Controller/Adminhtml/Order/Create/ProcessDataTest.php
@@ -236,6 +236,9 @@ public function testExecute($noDiscount, $couponCode, $errorMessage, $actualCoup
         $this->assertInstanceOf('Magento\Backend\Model\View\Result\Forward', $this->processData->execute());
     }
 
+    /**
+     * @return array
+     */
     public function isApplyDiscountDataProvider()
     {
         return [
diff --git a/app/code/Magento/Sales/Test/Unit/Controller/Download/DownloadCustomOptionTest.php b/app/code/Magento/Sales/Test/Unit/Controller/Download/DownloadCustomOptionTest.php
index 762cd71544cea..f522ba6b222ac 100644
--- a/app/code/Magento/Sales/Test/Unit/Controller/Download/DownloadCustomOptionTest.php
+++ b/app/code/Magento/Sales/Test/Unit/Controller/Download/DownloadCustomOptionTest.php
@@ -212,6 +212,9 @@ public function testExecute($itemOptionValues, $productOptionValues, $noRouteOcc
         $this->objectMock->execute();
     }
 
+    /**
+     * @return array
+     */
     public function executeDataProvider()
     {
         return [
diff --git a/app/code/Magento/Sales/Test/Unit/Cron/CleanExpiredQuotesTest.php b/app/code/Magento/Sales/Test/Unit/Cron/CleanExpiredQuotesTest.php
index 88394075bd1a7..2ff2a9ce47aca 100644
--- a/app/code/Magento/Sales/Test/Unit/Cron/CleanExpiredQuotesTest.php
+++ b/app/code/Magento/Sales/Test/Unit/Cron/CleanExpiredQuotesTest.php
@@ -68,6 +68,9 @@ public function testExecute($lifetimes, $additionalFilterFields)
         $this->observer->execute();
     }
 
+    /**
+     * @return array
+     */
     public function cleanExpiredQuotesDataProvider()
     {
         return [
diff --git a/app/code/Magento/Sales/Test/Unit/Helper/AdminTest.php b/app/code/Magento/Sales/Test/Unit/Helper/AdminTest.php
index 779a6e93ca27b..8bf7cefd58234 100644
--- a/app/code/Magento/Sales/Test/Unit/Helper/AdminTest.php
+++ b/app/code/Magento/Sales/Test/Unit/Helper/AdminTest.php
@@ -193,6 +193,9 @@ public function testDisplayPriceAttribute(
         );
     }
 
+    /**
+     * @return array
+     */
     public function displayPricesDataProvider()
     {
         return [
@@ -305,6 +308,9 @@ public function testApplySalableProductTypesFilter($itemKey, $type, $calledTimes
         $this->adminHelper->applySalableProductTypesFilter($collectionMock);
     }
 
+    /**
+     * @return array
+     */
     public function applySalableProductTypesFilterDataProvider()
     {
         return [
diff --git a/app/code/Magento/Sales/Test/Unit/Model/InvoiceOrderTest.php b/app/code/Magento/Sales/Test/Unit/Model/InvoiceOrderTest.php
index f246a6c12d029..bdc252d8adbbb 100644
--- a/app/code/Magento/Sales/Test/Unit/Model/InvoiceOrderTest.php
+++ b/app/code/Magento/Sales/Test/Unit/Model/InvoiceOrderTest.php
@@ -434,6 +434,9 @@ public function testCouldNotInvoiceException()
         );
     }
 
+    /**
+     * @return array
+     */
     public function dataProvider()
     {
         return [
diff --git a/app/code/Magento/Sales/Test/Unit/Model/Order/AddressTest.php b/app/code/Magento/Sales/Test/Unit/Model/Order/AddressTest.php
index a52102ab274f0..b38a14225982f 100644
--- a/app/code/Magento/Sales/Test/Unit/Model/Order/AddressTest.php
+++ b/app/code/Magento/Sales/Test/Unit/Model/Order/AddressTest.php
@@ -101,6 +101,9 @@ public function testGetRegionCodeRegionIsSet()
         $this->assertEquals('region', $this->address->getRegionCode());
     }
 
+    /**
+     * @return array
+     */
     public function regionProvider()
     {
         return [ [1, null], [null, 1]];
diff --git a/app/code/Magento/Sales/Test/Unit/Model/Order/Creditmemo/Item/Validation/CreateQuantityValidatorTest.php b/app/code/Magento/Sales/Test/Unit/Model/Order/Creditmemo/Item/Validation/CreateQuantityValidatorTest.php
index 27295ae9dbb48..d6f5f4a267e2c 100644
--- a/app/code/Magento/Sales/Test/Unit/Model/Order/Creditmemo/Item/Validation/CreateQuantityValidatorTest.php
+++ b/app/code/Magento/Sales/Test/Unit/Model/Order/Creditmemo/Item/Validation/CreateQuantityValidatorTest.php
@@ -97,6 +97,9 @@ public function testValidateCreditMemoProductItems($orderItemId, $expectedResult
         $this->assertEquals($expectedResult, $this->createQuantityValidator->validate($this->entity));
     }
 
+    /**
+     * @return array
+     */
     public function dataProvider()
     {
         return [
diff --git a/app/code/Magento/Sales/Test/Unit/Model/Order/Creditmemo/RefundOperationTest.php b/app/code/Magento/Sales/Test/Unit/Model/Order/Creditmemo/RefundOperationTest.php
index 616f3371ccc36..e56d4dec560c9 100644
--- a/app/code/Magento/Sales/Test/Unit/Model/Order/Creditmemo/RefundOperationTest.php
+++ b/app/code/Magento/Sales/Test/Unit/Model/Order/Creditmemo/RefundOperationTest.php
@@ -364,6 +364,9 @@ public function baseAmountsDataProvider()
         ];
     }
 
+    /**
+     * @param $amounts
+     */
     private function setBaseAmounts($amounts)
     {
         foreach ($amounts as $amountName => $summands) {
@@ -403,6 +406,9 @@ private function registerItems()
             ->willReturn([$item1, $item2, $item3]);
     }
 
+    /**
+     * @return \PHPUnit_Framework_MockObject_MockObject
+     */
     private function getCreditmemoItemMock()
     {
         return $this->getMockBuilder(\Magento\Sales\Api\Data\CreditmemoItemInterface::class)
diff --git a/app/code/Magento/Sales/Test/Unit/Model/Order/Email/Sender/AbstractSenderTest.php b/app/code/Magento/Sales/Test/Unit/Model/Order/Email/Sender/AbstractSenderTest.php
index a285df1b8cd1e..508b528048ba3 100644
--- a/app/code/Magento/Sales/Test/Unit/Model/Order/Email/Sender/AbstractSenderTest.php
+++ b/app/code/Magento/Sales/Test/Unit/Model/Order/Email/Sender/AbstractSenderTest.php
@@ -157,6 +157,10 @@ public function stepMockSetup()
         );
     }
 
+    /**
+     * @param $billingAddress
+     * @param bool $isVirtual
+     */
     public function stepAddressFormat($billingAddress, $isVirtual = false)
     {
         $this->orderMock->expects($this->any())
@@ -183,6 +187,9 @@ public function stepSendWithCallSendCopyTo()
         $this->stepSend($this->never(), $this->once());
     }
 
+    /**
+     * @param $identityMockClassName
+     */
     public function stepIdentityContainerInit($identityMockClassName)
     {
         $this->identityContainerMock = $this->getMock(
@@ -197,6 +204,10 @@ public function stepIdentityContainerInit($identityMockClassName)
             ->will($this->returnValue($this->storeMock));
     }
 
+    /**
+     * @param \PHPUnit_Framework_MockObject_Matcher_InvokedCount $sendExpects
+     * @param \PHPUnit_Framework_MockObject_Matcher_InvokedCount $sendCopyToExpects
+     */
     protected function stepSend(
         \PHPUnit_Framework_MockObject_Matcher_InvokedCount $sendExpects,
         \PHPUnit_Framework_MockObject_Matcher_InvokedCount $sendCopyToExpects
diff --git a/app/code/Magento/Sales/Test/Unit/Model/Order/InvoiceQuantityValidatorTest.php b/app/code/Magento/Sales/Test/Unit/Model/Order/InvoiceQuantityValidatorTest.php
index 963c085eaff33..c5009ecf09a29 100644
--- a/app/code/Magento/Sales/Test/Unit/Model/Order/InvoiceQuantityValidatorTest.php
+++ b/app/code/Magento/Sales/Test/Unit/Model/Order/InvoiceQuantityValidatorTest.php
@@ -156,6 +156,11 @@ public function testValidateNoInvoiceItems()
         );
     }
 
+    /**
+     * @param $orderItemId
+     * @param $qty
+     * @return \PHPUnit_Framework_MockObject_MockObject
+     */
     private function getInvoiceItemMock($orderItemId, $qty)
     {
         $invoiceItemMock = $this->getMockBuilder(\Magento\Sales\Api\Data\InvoiceItemInterface::class)
@@ -167,6 +172,12 @@ private function getInvoiceItemMock($orderItemId, $qty)
         return $invoiceItemMock;
     }
 
+    /**
+     * @param $id
+     * @param $qtyToInvoice
+     * @param $isDummy
+     * @return \PHPUnit_Framework_MockObject_MockObject
+     */
     private function getOrderItemMock($id, $qtyToInvoice, $isDummy)
     {
         $orderItemMock = $this->getMockBuilder(\Magento\Sales\Api\Data\OrderItemInterface::class)
diff --git a/app/code/Magento/Sales/Test/Unit/Model/Order/InvoiceTest.php b/app/code/Magento/Sales/Test/Unit/Model/Order/InvoiceTest.php
index 9cf79a764583b..77a38d32a88b4 100644
--- a/app/code/Magento/Sales/Test/Unit/Model/Order/InvoiceTest.php
+++ b/app/code/Magento/Sales/Test/Unit/Model/Order/InvoiceTest.php
@@ -160,6 +160,9 @@ public function testDefaultCanVoid($canVoid)
         $this->assertEquals($canVoid, $this->model->canVoid());
     }
 
+    /**
+     * @return array
+     */
     public function canVoidDataProvider()
     {
         return [[true], [false]];
@@ -386,6 +389,9 @@ public function testPay(
         $this->model->pay();
     }
 
+    /**
+     * @return array
+     */
     public function payDataProvider()
     {
         //ToDo: fill data provider and uncomment assertings totals in testPay
diff --git a/app/code/Magento/Sales/Test/Unit/Model/Order/ItemTest.php b/app/code/Magento/Sales/Test/Unit/Model/Order/ItemTest.php
index 98f131d3cca7c..66f67e1406fcb 100644
--- a/app/code/Magento/Sales/Test/Unit/Model/Order/ItemTest.php
+++ b/app/code/Magento/Sales/Test/Unit/Model/Order/ItemTest.php
@@ -130,6 +130,9 @@ public function testGetStatusId(
         $this->assertEquals($expectedStatus, $this->model->getStatusId());
     }
 
+    /**
+     * @return array
+     */
     public function getStatusIdDataProvider()
     {
         return [
diff --git a/app/code/Magento/Sales/Test/Unit/Model/Order/Payment/RepositoryTest.php b/app/code/Magento/Sales/Test/Unit/Model/Order/Payment/RepositoryTest.php
index 3db657b1c1378..07e51d20635a6 100644
--- a/app/code/Magento/Sales/Test/Unit/Model/Order/Payment/RepositoryTest.php
+++ b/app/code/Magento/Sales/Test/Unit/Model/Order/Payment/RepositoryTest.php
@@ -176,6 +176,10 @@ public function testGetList()
         $this->assertSame($this->collection, $this->repository->getList($this->searchCriteria));
     }
 
+    /**
+     * @param bool $id
+     * @return mixed
+     */
     protected function mockPayment($id = false)
     {
         $payment = $this->getMock(
diff --git a/app/code/Magento/Sales/Test/Unit/Model/Order/Payment/Transaction/BuilderTest.php b/app/code/Magento/Sales/Test/Unit/Model/Order/Payment/Transaction/BuilderTest.php
index 86d22fed46118..027acdd879913 100644
--- a/app/code/Magento/Sales/Test/Unit/Model/Order/Payment/Transaction/BuilderTest.php
+++ b/app/code/Magento/Sales/Test/Unit/Model/Order/Payment/Transaction/BuilderTest.php
@@ -287,6 +287,9 @@ protected function expectsIsPaymentTransactionClosed($isPaymentTransactionClosed
             ->willReturn($isPaymentTransactionClosed);
     }
 
+    /**
+     * @return array
+     */
     public function createDataProvider()
     {
         return [
diff --git a/app/code/Magento/Sales/Test/Unit/Model/Order/Payment/Transaction/ManagerTest.php b/app/code/Magento/Sales/Test/Unit/Model/Order/Payment/Transaction/ManagerTest.php
index fcd8e08d072bb..f4923dcd7aae3 100644
--- a/app/code/Magento/Sales/Test/Unit/Model/Order/Payment/Transaction/ManagerTest.php
+++ b/app/code/Magento/Sales/Test/Unit/Model/Order/Payment/Transaction/ManagerTest.php
@@ -183,6 +183,9 @@ public function generateTransactionIdDataProvider()
         ];
     }
 
+    /**
+     * @return array
+     */
     public function isTransactionExistsDataProvider()
     {
         return [
@@ -193,6 +196,9 @@ public function isTransactionExistsDataProvider()
         ];
     }
 
+    /**
+     * @return array
+     */
     public function getAuthorizationDataProvider()
     {
         return [
diff --git a/app/code/Magento/Sales/Test/Unit/Model/Order/PaymentTest.php b/app/code/Magento/Sales/Test/Unit/Model/Order/PaymentTest.php
index 03bf382b072df..544dd1e0c90ab 100644
--- a/app/code/Magento/Sales/Test/Unit/Model/Order/PaymentTest.php
+++ b/app/code/Magento/Sales/Test/Unit/Model/Order/PaymentTest.php
@@ -591,6 +591,9 @@ public function testAcceptApprovePaymentTrue()
         $this->assertEquals($baseGrandTotal, $this->payment->getBaseAmountPaidOnline());
     }
 
+    /**
+     * @return array
+     */
     public function acceptPaymentFalseProvider()
     {
         return [
@@ -1520,6 +1523,9 @@ public function testRefund()
         static::assertEquals($amount, $this->payment->getData('base_amount_refunded'));
     }
 
+    /**
+     * @return array
+     */
     public function boolProvider()
     {
         return [
@@ -1558,6 +1564,9 @@ public function testGetShouldCloseParentTransaction()
         static::assertFalse($this->payment->getShouldCloseParentTransaction());
     }
 
+    /**
+     * @return object
+     */
     protected function initPayment()
     {
         return (new \Magento\Framework\TestFramework\Unit\Helper\ObjectManager($this))->getObject(
@@ -1577,6 +1586,12 @@ protected function initPayment()
         );
     }
 
+    /**
+     * @param $state
+     * @param null $status
+     * @param null $message
+     * @param null $isCustomerNotified
+     */
     protected function assertOrderUpdated(
         $state,
         $status = null,
@@ -1605,6 +1620,11 @@ protected function assertOrderUpdated(
             ->willReturn($statusHistory);
     }
 
+    /**
+     * @param $state
+     * @param $status
+     * @param array $allStatuses
+     */
     protected function mockGetDefaultStatus($state, $status, $allStatuses = [])
     {
         /** @var \Magento\Sales\Model\Order\Config | \PHPUnit_Framework_MockObject_MockObject $orderConfigMock */
@@ -1630,6 +1650,10 @@ protected function mockGetDefaultStatus($state, $status, $allStatuses = [])
             ->will($this->returnValue($orderConfigMock));
     }
 
+    /**
+     * @param $transactionId
+     * @return mixed
+     */
     protected function getTransactionMock($transactionId)
     {
         $transaction = $this->getMock(
diff --git a/app/code/Magento/Sales/Test/Unit/Model/Order/StatusResolverTest.php b/app/code/Magento/Sales/Test/Unit/Model/Order/StatusResolverTest.php
index af6535fae2c7a..25554f86f89aa 100644
--- a/app/code/Magento/Sales/Test/Unit/Model/Order/StatusResolverTest.php
+++ b/app/code/Magento/Sales/Test/Unit/Model/Order/StatusResolverTest.php
@@ -27,6 +27,9 @@ public function testGetOrderStatusByState($order, $expectedReturn)
         self::assertEquals($expectedReturn, $actualReturn);
     }
 
+    /**
+     * @return array
+     */
     public function statesDataProvider()
     {
         return [
diff --git a/app/code/Magento/Sales/Test/Unit/Model/OrderTest.php b/app/code/Magento/Sales/Test/Unit/Model/OrderTest.php
index e6b402f6a4e3b..bdcbe5c1d8235 100644
--- a/app/code/Magento/Sales/Test/Unit/Model/OrderTest.php
+++ b/app/code/Magento/Sales/Test/Unit/Model/OrderTest.php
@@ -839,6 +839,9 @@ protected function prepareItemMock($qtyInvoiced)
             ->will($this->returnValue($itemCollectionMock));
     }
 
+    /**
+     * @return array
+     */
     public function canVoidPaymentDataProvider()
     {
         $data = [];
@@ -850,6 +853,9 @@ public function canVoidPaymentDataProvider()
         return $data;
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderActionFlag()
     {
         return [
@@ -1023,6 +1029,9 @@ public function testSetPaymentNoId()
         );
     }
 
+    /**
+     * @return array
+     */
     public function notInvoicingStatesProvider()
     {
         return [
@@ -1032,6 +1041,9 @@ public function notInvoicingStatesProvider()
         ];
     }
 
+    /**
+     * @return array
+     */
     public function canNotCreditMemoStatesProvider()
     {
         return [
diff --git a/app/code/Magento/Sales/Test/Unit/Model/RefundInvoiceTest.php b/app/code/Magento/Sales/Test/Unit/Model/RefundInvoiceTest.php
index 7997f4f18ec24..beca74b0a6dc7 100644
--- a/app/code/Magento/Sales/Test/Unit/Model/RefundInvoiceTest.php
+++ b/app/code/Magento/Sales/Test/Unit/Model/RefundInvoiceTest.php
@@ -463,6 +463,9 @@ public function testCouldNotCreditmemoException()
         );
     }
 
+    /**
+     * @return array
+     */
     public function dataProvider()
     {
         $creditmemoItemCreationMock = $this->getMockBuilder(CreditmemoItemCreationInterface::class)
diff --git a/app/code/Magento/Sales/Test/Unit/Model/RefundOrderTest.php b/app/code/Magento/Sales/Test/Unit/Model/RefundOrderTest.php
index 845bdeddc3cac..a0950aeef7e27 100644
--- a/app/code/Magento/Sales/Test/Unit/Model/RefundOrderTest.php
+++ b/app/code/Magento/Sales/Test/Unit/Model/RefundOrderTest.php
@@ -407,6 +407,9 @@ public function testCouldNotCreditmemoException()
         );
     }
 
+    /**
+     * @return array
+     */
     public function dataProvider()
     {
         return [
diff --git a/app/code/Magento/Sales/Test/Unit/Observer/Frontend/AddVatRequestParamsOrderCommentTest.php b/app/code/Magento/Sales/Test/Unit/Observer/Frontend/AddVatRequestParamsOrderCommentTest.php
index 2a73729ab6730..59ca02ff2f3c0 100644
--- a/app/code/Magento/Sales/Test/Unit/Observer/Frontend/AddVatRequestParamsOrderCommentTest.php
+++ b/app/code/Magento/Sales/Test/Unit/Observer/Frontend/AddVatRequestParamsOrderCommentTest.php
@@ -87,6 +87,9 @@ public function testAddVatRequestParamsOrderComment(
         $this->assertNull($this->observer->execute($observer));
     }
 
+    /**
+     * @return array
+     */
     public function addVatRequestParamsOrderCommentDataProvider()
     {
         return [
diff --git a/app/code/Magento/Sales/Test/Unit/Observer/Frontend/RestoreCustomerGroupIdTest.php b/app/code/Magento/Sales/Test/Unit/Observer/Frontend/RestoreCustomerGroupIdTest.php
index b12f171f8787b..fcbca8797cc14 100644
--- a/app/code/Magento/Sales/Test/Unit/Observer/Frontend/RestoreCustomerGroupIdTest.php
+++ b/app/code/Magento/Sales/Test/Unit/Observer/Frontend/RestoreCustomerGroupIdTest.php
@@ -69,6 +69,9 @@ public function testExecute($configAddressType)
         $this->quote->execute($observer);
     }
 
+    /**
+     * @return array
+     */
     public function restoreCustomerGroupIdDataProvider()
     {
         return [
diff --git a/app/code/Magento/SalesInventory/Test/Unit/Model/Order/ReturnValidatorTest.php b/app/code/Magento/SalesInventory/Test/Unit/Model/Order/ReturnValidatorTest.php
index 469c9a5922dc0..c2d1bba9aa574 100644
--- a/app/code/Magento/SalesInventory/Test/Unit/Model/Order/ReturnValidatorTest.php
+++ b/app/code/Magento/SalesInventory/Test/Unit/Model/Order/ReturnValidatorTest.php
@@ -122,6 +122,9 @@ public function testValidationWithWrongOrderItems()
 
     }
 
+    /**
+     * @return array
+     */
     public function dataProvider()
     {
         return [
diff --git a/app/code/Magento/SalesInventory/Test/Unit/Model/Plugin/Order/Validation/InvoiceRefundCreationArgumentsTest.php b/app/code/Magento/SalesInventory/Test/Unit/Model/Plugin/Order/Validation/InvoiceRefundCreationArgumentsTest.php
index dd3527e7f5051..6e05a6e1691e7 100644
--- a/app/code/Magento/SalesInventory/Test/Unit/Model/Plugin/Order/Validation/InvoiceRefundCreationArgumentsTest.php
+++ b/app/code/Magento/SalesInventory/Test/Unit/Model/Plugin/Order/Validation/InvoiceRefundCreationArgumentsTest.php
@@ -148,6 +148,9 @@ public function testAroundValidation($errorMessage)
         );
     }
 
+    /**
+     * @return array
+     */
     public function dataProvider()
     {
         return [
diff --git a/app/code/Magento/SalesRule/Test/Unit/Block/Rss/DiscountsTest.php b/app/code/Magento/SalesRule/Test/Unit/Block/Rss/DiscountsTest.php
index 8b324381f8372..19513917c587b 100644
--- a/app/code/Magento/SalesRule/Test/Unit/Block/Rss/DiscountsTest.php
+++ b/app/code/Magento/SalesRule/Test/Unit/Block/Rss/DiscountsTest.php
@@ -213,6 +213,9 @@ public function testIsAllowed($isAllowed)
         $this->assertEquals($isAllowed, $this->block->isAllowed());
     }
 
+    /**
+     * @return array
+     */
     public function isAllowedDataProvider()
     {
         return [
diff --git a/app/code/Magento/SalesRule/Test/Unit/Model/Converter/ToModelTest.php b/app/code/Magento/SalesRule/Test/Unit/Model/Converter/ToModelTest.php
index 834fb4d78131b..59743715f768b 100644
--- a/app/code/Magento/SalesRule/Test/Unit/Model/Converter/ToModelTest.php
+++ b/app/code/Magento/SalesRule/Test/Unit/Model/Converter/ToModelTest.php
@@ -273,6 +273,9 @@ public function testFormattingDate($data)
         $this->model->toModel($dataModel);
     }
 
+    /**
+     * @return array
+     */
     public function expectedDatesProvider()
     {
         return [
diff --git a/app/code/Magento/SalesRule/Test/Unit/Model/CouponRepositoryTest.php b/app/code/Magento/SalesRule/Test/Unit/Model/CouponRepositoryTest.php
index b9c2b5d6cf5c0..002771ff34e6b 100644
--- a/app/code/Magento/SalesRule/Test/Unit/Model/CouponRepositoryTest.php
+++ b/app/code/Magento/SalesRule/Test/Unit/Model/CouponRepositoryTest.php
@@ -159,6 +159,9 @@ public function testSaveWithExceptions($exceptionObject, $exceptionName, $except
         $this->model->save($coupon);
     }
 
+    /**
+     * @return array
+     */
     public function saveExceptionsDataProvider()
     {
         $msg = 'kiwis';
diff --git a/app/code/Magento/SalesRule/Test/Unit/Model/Quote/DiscountTest.php b/app/code/Magento/SalesRule/Test/Unit/Model/Quote/DiscountTest.php
index 3ab47b05cb5b6..c6155ceb54db3 100644
--- a/app/code/Magento/SalesRule/Test/Unit/Model/Quote/DiscountTest.php
+++ b/app/code/Magento/SalesRule/Test/Unit/Model/Quote/DiscountTest.php
@@ -234,6 +234,9 @@ public function testCollectItemHasChildren($childItemData, $parentData, $expecte
         }
     }
 
+    /**
+     * @return array
+     */
     public function collectItemHasChildrenDataProvider()
     {
         $data = [
diff --git a/app/code/Magento/SalesRule/Test/Unit/Model/RuleTest.php b/app/code/Magento/SalesRule/Test/Unit/Model/RuleTest.php
index 12add3504f75a..7b97f7b4f12c9 100644
--- a/app/code/Magento/SalesRule/Test/Unit/Model/RuleTest.php
+++ b/app/code/Magento/SalesRule/Test/Unit/Model/RuleTest.php
@@ -132,6 +132,9 @@ public function testBeforeSaveResetConditionToNull()
         $this->model->getActions();
     }
 
+    /**
+     * @return \PHPUnit_Framework_MockObject_MockObject
+     */
     protected function setupProdConditionMock()
     {
         $prodConditionMock = $this->getMockBuilder(\Magento\SalesRule\Model\Rule\Condition\Product\Combine::class)
@@ -152,6 +155,9 @@ protected function setupProdConditionMock()
         return $prodConditionMock;
     }
 
+    /**
+     * @return \PHPUnit_Framework_MockObject_MockObject
+     */
     protected function setupConditionMock()
     {
         $conditionMock = $this->getMockBuilder(\Magento\SalesRule\Model\Rule\Condition\Combine::class)
diff --git a/app/code/Magento/SalesRule/Test/Unit/Model/RulesApplierTest.php b/app/code/Magento/SalesRule/Test/Unit/Model/RulesApplierTest.php
index 37e18111ae1b3..5c0612e82965e 100644
--- a/app/code/Magento/SalesRule/Test/Unit/Model/RulesApplierTest.php
+++ b/app/code/Magento/SalesRule/Test/Unit/Model/RulesApplierTest.php
@@ -149,6 +149,9 @@ public function testApplyRulesWhenRuleWithStopRulesProcessingIsUsed($isChildren,
         $this->assertEquals($appliedRuleIds, $result);
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderChildren()
     {
         return [
@@ -200,6 +203,10 @@ protected function getPreparedItem()
         return $item;
     }
 
+    /**
+     * @param $item
+     * @param $rule
+     */
     protected function applyRule($item, $rule)
     {
         $qty = 2;
diff --git a/app/code/Magento/SalesRule/Test/Unit/Model/UtilityTest.php b/app/code/Magento/SalesRule/Test/Unit/Model/UtilityTest.php
index 6fd5135daae04..1c5af8a385edb 100644
--- a/app/code/Magento/SalesRule/Test/Unit/Model/UtilityTest.php
+++ b/app/code/Magento/SalesRule/Test/Unit/Model/UtilityTest.php
@@ -392,6 +392,9 @@ public function testMergeIds($a1, $a2, $isSting, $expected)
         $this->assertEquals($expected, $this->utility->mergeIds($a1, $a2, $isSting));
     }
 
+    /**
+     * @return array
+     */
     public function mergeIdsDataProvider()
     {
         return [
diff --git a/app/code/Magento/SalesRule/Test/Unit/Model/ValidatorTest.php b/app/code/Magento/SalesRule/Test/Unit/Model/ValidatorTest.php
index efa81641d20dd..2e08adad3b914 100644
--- a/app/code/Magento/SalesRule/Test/Unit/Model/ValidatorTest.php
+++ b/app/code/Magento/SalesRule/Test/Unit/Model/ValidatorTest.php
@@ -513,6 +513,9 @@ public function testProcessShippingAmountActions($action)
         );
     }
 
+    /**
+     * @return array
+     */
     public static function dataProviderActions()
     {
         return [
diff --git a/app/code/Magento/SalesRule/Test/Unit/Observer/SalesOrderAfterPlaceObserverTest.php b/app/code/Magento/SalesRule/Test/Unit/Observer/SalesOrderAfterPlaceObserverTest.php
index 3b12a1546a448..d82cd8e17c03d 100644
--- a/app/code/Magento/SalesRule/Test/Unit/Observer/SalesOrderAfterPlaceObserverTest.php
+++ b/app/code/Magento/SalesRule/Test/Unit/Observer/SalesOrderAfterPlaceObserverTest.php
@@ -193,6 +193,9 @@ public function testSalesOrderAfterPlace($ruleCustomerId)
         $this->assertEquals($this->model, $this->model->execute($observer));
     }
 
+    /**
+     * @return array
+     */
     public function salesOrderAfterPlaceDataProvider()
     {
         return [
diff --git a/app/code/Magento/Search/Test/Unit/Helper/DataTest.php b/app/code/Magento/Search/Test/Unit/Helper/DataTest.php
index 5e31c1ed31867..39fcebeeec950 100644
--- a/app/code/Magento/Search/Test/Unit/Helper/DataTest.php
+++ b/app/code/Magento/Search/Test/Unit/Helper/DataTest.php
@@ -116,6 +116,9 @@ public function testGetEscapedQueryText($queryText, $maxQueryLength, $expected)
         $this->assertEquals($expected, $this->model->getEscapedQueryText());
     }
 
+    /**
+     * @return array
+     */
     public function queryTextDataProvider()
     {
         return [
diff --git a/app/code/Magento/Security/Test/Unit/Model/ResourceModel/PasswordResetRequestEvent/CollectionFactoryTest.php b/app/code/Magento/Security/Test/Unit/Model/ResourceModel/PasswordResetRequestEvent/CollectionFactoryTest.php
index a3cb5bfbd9b4f..1218840087aeb 100644
--- a/app/code/Magento/Security/Test/Unit/Model/ResourceModel/PasswordResetRequestEvent/CollectionFactoryTest.php
+++ b/app/code/Magento/Security/Test/Unit/Model/ResourceModel/PasswordResetRequestEvent/CollectionFactoryTest.php
@@ -86,6 +86,9 @@ public function testCreate(
         $this->model->create($securityEventType, $accountReference, $longIp);
     }
 
+    /**
+     * @return array
+     */
     public function createDataProvider()
     {
         return [
diff --git a/app/code/Magento/SendFriend/Test/Unit/Block/Plugin/Catalog/Product/ViewTest.php b/app/code/Magento/SendFriend/Test/Unit/Block/Plugin/Catalog/Product/ViewTest.php
index d0c72319bcd76..0f0e8a9c33ec0 100644
--- a/app/code/Magento/SendFriend/Test/Unit/Block/Plugin/Catalog/Product/ViewTest.php
+++ b/app/code/Magento/SendFriend/Test/Unit/Block/Plugin/Catalog/Product/ViewTest.php
@@ -55,6 +55,9 @@ public function testAfterCanEmailToFriend($result, $callSendfriend)
         $this->assertTrue($this->view->afterCanEmailToFriend($this->productView, $result));
     }
 
+    /**
+     * @return array
+     */
     public function afterCanEmailToFriendDataSet()
     {
         return [
diff --git a/app/code/Magento/Shipping/Test/Unit/Controller/Adminhtml/Order/Shipment/ViewTest.php b/app/code/Magento/Shipping/Test/Unit/Controller/Adminhtml/Order/Shipment/ViewTest.php
index 38e563e63b4b1..fa80762dd628d 100644
--- a/app/code/Magento/Shipping/Test/Unit/Controller/Adminhtml/Order/Shipment/ViewTest.php
+++ b/app/code/Magento/Shipping/Test/Unit/Controller/Adminhtml/Order/Shipment/ViewTest.php
@@ -212,6 +212,14 @@ public function testExecuteNoShipment()
         $this->assertEquals($this->resultForwardMock, $this->controller->execute());
     }
 
+    /**
+     * @param $orderId
+     * @param $shipmentId
+     * @param $shipment
+     * @param $tracking
+     * @param $comeFrom
+     * @param $returnShipment
+     */
     protected function loadShipment($orderId, $shipmentId, $shipment, $tracking, $comeFrom, $returnShipment)
     {
         $valueMap = [
diff --git a/app/code/Magento/Store/Test/Unit/App/Config/Source/RuntimeConfigSourceTest.php b/app/code/Magento/Store/Test/Unit/App/Config/Source/RuntimeConfigSourceTest.php
index 1617161fff361..b65a374466d75 100644
--- a/app/code/Magento/Store/Test/Unit/App/Config/Source/RuntimeConfigSourceTest.php
+++ b/app/code/Magento/Store/Test/Unit/App/Config/Source/RuntimeConfigSourceTest.php
@@ -202,6 +202,10 @@ public function testGet($path)
         $this->assertEquals($this->getExpectedResult($path), $this->configSource->get($path));
     }
 
+    /**
+     * @param $path
+     * @return array
+     */
     private function getExpectedResult($path)
     {
         switch ($this->getScope($path)) {
@@ -221,6 +225,9 @@ private function getExpectedResult($path)
         return $result;
     }
 
+    /**
+     * @param $path
+     */
     private function prepareStores($path)
     {
         $scope = $this->getScope($path);
@@ -254,6 +261,9 @@ private function prepareStores($path)
         }
     }
 
+    /**
+     * @param $path
+     */
     private function prepareGroups($path)
     {
         $scope = $this->getScope($path);
@@ -287,6 +297,9 @@ private function prepareGroups($path)
         }
     }
 
+    /**
+     * @param $path
+     */
     private function prepareWebsites($path)
     {
         $scope = $this->getScope($path);
@@ -320,11 +333,19 @@ private function prepareWebsites($path)
         }
     }
 
+    /**
+     * @param $path
+     * @return string
+     */
     private function getScopeCode($path)
     {
         return implode('/', array_slice(explode('/', $path), 1, 1));
     }
 
+    /**
+     * @param $path
+     * @return string
+     */
     private function getScope($path)
     {
         return implode('/', array_slice(explode('/', $path), 0, 1));
diff --git a/app/code/Magento/Store/Test/Unit/Model/Service/StoreConfigManagerTest.php b/app/code/Magento/Store/Test/Unit/Model/Service/StoreConfigManagerTest.php
index 49cfb681b1a50..5e92ddb7ef8a7 100644
--- a/app/code/Magento/Store/Test/Unit/Model/Service/StoreConfigManagerTest.php
+++ b/app/code/Magento/Store/Test/Unit/Model/Service/StoreConfigManagerTest.php
@@ -52,6 +52,10 @@ protected function setUp()
         );
     }
 
+    /**
+     * @param array $storeConfig
+     * @return \PHPUnit_Framework_MockObject_MockObject
+     */
     protected function getStoreMock(array $storeConfig)
     {
         $storeMock = $this->getMockBuilder('Magento\Store\Model\Store')
@@ -85,6 +89,9 @@ protected function getStoreMock(array $storeConfig)
         return $storeMock;
     }
 
+    /**
+     * @return \Magento\Store\Model\Data\StoreConfig
+     */
     protected function createStoreConfigDataObject()
     {
         /** @var \Magento\Framework\Api\ExtensionAttributesFactory $extensionFactoryMock */
diff --git a/app/code/Magento/Store/Test/Unit/Model/StoreManagerTest.php b/app/code/Magento/Store/Test/Unit/Model/StoreManagerTest.php
index 97e52734689a9..3ee6d131cf00b 100644
--- a/app/code/Magento/Store/Test/Unit/Model/StoreManagerTest.php
+++ b/app/code/Magento/Store/Test/Unit/Model/StoreManagerTest.php
@@ -97,6 +97,9 @@ public function testGetStores($storesList, $withDefault, $codeKey, $expectedStor
         $this->assertEquals($expectedStores, $this->model->getStores($withDefault, $codeKey));
     }
 
+    /**
+     * @return array
+     */
     public function getStoresDataProvider()
     {
         $defaultStoreMock = $this->getMockBuilder('Magento\Store\Api\Data\StoreInterface')
diff --git a/app/code/Magento/Store/Test/Unit/Model/StoreTest.php b/app/code/Magento/Store/Test/Unit/Model/StoreTest.php
index 5103e3de5bdef..5eb795d5acfb0 100644
--- a/app/code/Magento/Store/Test/Unit/Model/StoreTest.php
+++ b/app/code/Magento/Store/Test/Unit/Model/StoreTest.php
@@ -98,6 +98,9 @@ public function testLoad($key, $field)
         $model->load($key);
     }
 
+    /**
+     * @return array
+     */
     public function loadDataProvider()
     {
         return [
@@ -258,6 +261,9 @@ function ($path, $scope, $scopeCode) use ($secure, $expectedPath) {
         $this->assertEquals($expectedBaseUrl, $model->getBaseUrl($type, $secure));
     }
 
+    /**
+     * @return array
+     */
     public function getBaseUrlDataProvider()
     {
         return [
@@ -563,6 +569,9 @@ public function testIsCurrentlySecure(
         }
     }
 
+    /**
+     * @return array
+     */
     public function isCurrentlySecureDataProvider()
     {
         return [
diff --git a/app/code/Magento/Store/Test/Unit/Model/System/StoreTest.php b/app/code/Magento/Store/Test/Unit/Model/System/StoreTest.php
index 6ad7a824383d8..079dbd0df5a1c 100644
--- a/app/code/Magento/Store/Test/Unit/Model/System/StoreTest.php
+++ b/app/code/Magento/Store/Test/Unit/Model/System/StoreTest.php
@@ -104,6 +104,9 @@ public function testGetStoresStructure(
         );
     }
 
+    /**
+     * @return array
+     */
     public function getStoresStructureDataProvider()
     {
         $websiteName = 'website';
@@ -207,6 +210,9 @@ public function testGetStoreValuesForForm(
         );
     }
 
+    /**
+     * @return array
+     */
     public function getStoreValuesForFormDataProvider()
     {
         $websiteName = 'website';
diff --git a/app/code/Magento/Swatches/Controller/Ajax/Media.php b/app/code/Magento/Swatches/Controller/Ajax/Media.php
index 6a5a2d32a8a25..83a8d6d0aa688 100644
--- a/app/code/Magento/Swatches/Controller/Ajax/Media.php
+++ b/app/code/Magento/Swatches/Controller/Ajax/Media.php
@@ -73,6 +73,11 @@ public function execute()
         return $resultJson;
     }
 
+    /**
+     * @param Product $currentConfigurable
+     * @param array $attributes
+     * @return bool|\Magento\Catalog\Api\Data\ProductInterface|null
+     */
     protected function getProductVariationWithMedia(Product $currentConfigurable, array $attributes)
     {
         $product = null;
diff --git a/app/code/Magento/Swatches/Test/Unit/Block/Adminhtml/Attribute/Edit/Options/AbstractSwatchTest.php b/app/code/Magento/Swatches/Test/Unit/Block/Adminhtml/Attribute/Edit/Options/AbstractSwatchTest.php
index 525c85b85047f..effe7db9a1aa9 100644
--- a/app/code/Magento/Swatches/Test/Unit/Block/Adminhtml/Attribute/Edit/Options/AbstractSwatchTest.php
+++ b/app/code/Magento/Swatches/Test/Unit/Block/Adminhtml/Attribute/Edit/Options/AbstractSwatchTest.php
@@ -171,6 +171,9 @@ public function testGetStoreOptionValues($values)
         $this->assertEquals($result, $values);
     }
 
+    /**
+     * @return array
+     */
     public function dataForGetStoreOptionValues()
     {
         return [
diff --git a/app/code/Magento/Swatches/Test/Unit/Block/Adminhtml/Product/Attribute/Edit/FormTest.php b/app/code/Magento/Swatches/Test/Unit/Block/Adminhtml/Product/Attribute/Edit/FormTest.php
index 9e3e2b4824bef..5a09dc20365ed 100644
--- a/app/code/Magento/Swatches/Test/Unit/Block/Adminhtml/Product/Attribute/Edit/FormTest.php
+++ b/app/code/Magento/Swatches/Test/Unit/Block/Adminhtml/Product/Attribute/Edit/FormTest.php
@@ -20,6 +20,9 @@ public function testAddValues($values)
         $block->addValues($values);
     }
 
+    /**
+     * @return array
+     */
     public function dataForAddValues()
     {
         $additionalData = [
diff --git a/app/code/Magento/Swatches/Test/Unit/Controller/Adminhtml/Iframe/ShowTest.php b/app/code/Magento/Swatches/Test/Unit/Controller/Adminhtml/Iframe/ShowTest.php
index cea0f7270d029..3b5baa16ee0e1 100644
--- a/app/code/Magento/Swatches/Test/Unit/Controller/Adminhtml/Iframe/ShowTest.php
+++ b/app/code/Magento/Swatches/Test/Unit/Controller/Adminhtml/Iframe/ShowTest.php
@@ -135,6 +135,9 @@ public function testExecute($fileResult, $expectedResult)
         $this->controller->execute();
     }
 
+    /**
+     * @return array
+     */
     public function dataForExecute()
     {
         return [
diff --git a/app/code/Magento/Swatches/Test/Unit/Controller/Adminhtml/Product/Attribute/Plugin/SaveTest.php b/app/code/Magento/Swatches/Test/Unit/Controller/Adminhtml/Product/Attribute/Plugin/SaveTest.php
index 5b76f4d4ae5c7..5a4db98c53c73 100644
--- a/app/code/Magento/Swatches/Test/Unit/Controller/Adminhtml/Product/Attribute/Plugin/SaveTest.php
+++ b/app/code/Magento/Swatches/Test/Unit/Controller/Adminhtml/Product/Attribute/Plugin/SaveTest.php
@@ -43,6 +43,9 @@ public function testBeforeDispatch($dataRequest, $runTimes)
         $controller->beforeDispatch($subject, $request);
     }
 
+    /**
+     * @return array
+     */
     public function dataRequest()
     {
         return [
diff --git a/app/code/Magento/Swatches/Test/Unit/Helper/DataTest.php b/app/code/Magento/Swatches/Test/Unit/Helper/DataTest.php
index 3c93810b89c27..8531a53382694 100644
--- a/app/code/Magento/Swatches/Test/Unit/Helper/DataTest.php
+++ b/app/code/Magento/Swatches/Test/Unit/Helper/DataTest.php
@@ -148,6 +148,9 @@ protected function setUp()
         );
     }
 
+    /**
+     * @return array
+     */
     public function dataForAdditionalData()
     {
         $additionalData = [
@@ -200,6 +203,9 @@ public function testAssembleAdditionalDataEavAttribute($dataFromDb, $attributeDa
         $this->swatchHelperObject->assembleAdditionalDataEavAttribute($this->attributeMock);
     }
 
+    /**
+     * @return array
+     */
     public function dataForAssembleEavAttribute()
     {
         $additionalData = [
@@ -245,6 +251,9 @@ public function testLoadFirstVariationWithSwatchImage($imageTypes, $expected, $r
         }
     }
 
+    /**
+     * @return array
+     */
     public function dataForVariationWithSwatchImage()
     {
         return [
@@ -304,6 +313,9 @@ public function testLoadFirstVariationWithImage($imageTypes, $expected, $require
         }
     }
 
+    /**
+     * @return array
+     */
     public function dataForVariationWithImage()
     {
         return [
@@ -410,6 +422,9 @@ public function testGetProductMediaGallery($mediaGallery, $image)
         }
     }
 
+    /**
+     * @return array
+     */
     public function dataForMediaGallery()
     {
         return [
@@ -447,6 +462,10 @@ protected function getSwatchAttributes()
             ->willReturn($returnFromProvideMethod);
     }
 
+    /**
+     * @param array $attributes
+     * @param array $imageTypes
+     */
     protected function getUsedProducts(array $attributes, array $imageTypes)
     {
         $this->productMock
@@ -540,6 +559,9 @@ protected function addfilterByParent()
         $zendDbSelectMock->method('where')->willReturn($zendDbSelectMock);
     }
 
+    /**
+     * @return array
+     */
     public function dataForCreateSwatchProduct()
     {
         $productMock = $this->getMock(\Magento\Catalog\Model\Product::class, [], [], '', false);
@@ -576,6 +598,9 @@ public function dataForCreateSwatchProduct()
         ];
     }
 
+    /**
+     * @return array
+     */
     public function dataForCreateSwatchProductByFallback()
     {
         $productMock = $this->getMock(\Magento\Catalog\Model\Product::class, [], [], '', false);
@@ -626,6 +651,9 @@ public function testGetSwatchAttributesAsArray($optionsArray, $attributeData, $e
         $this->assertEquals($result, $expected);
     }
 
+    /**
+     * @return array
+     */
     public function dataForGettingSwatchAsArray()
     {
         return [
@@ -818,6 +846,9 @@ public function testIsVisualSwatch($swatchType, $boolResult)
         }
     }
 
+    /**
+     * @return array
+     */
     public function dataIsVisualSwatch()
     {
         return [
@@ -859,6 +890,9 @@ public function testIsVisualSwatchFalse($data, $count, $swatchType, $boolResult)
         }
     }
 
+    /**
+     * @return array
+     */
     public function dataForIsVisualSwatchType()
     {
         $additionalData = [
@@ -916,6 +950,9 @@ public function testIsTextSwatchFalse($data, $count, $swatchType, $boolResult)
         }
     }
 
+    /**
+     * @return array
+     */
     public function dataForIsTextSwatchType()
     {
         $additionalData = [
@@ -965,6 +1002,9 @@ public function testIsTextSwatch($swatchType, $boolResult)
         }
     }
 
+    /**
+     * @return array
+     */
     public function dataIsTextSwatch()
     {
         return [
@@ -999,6 +1039,9 @@ public function testIsSwatchAttribute($times, $swatchType, $boolResult)
         }
     }
 
+    /**
+     * @return array
+     */
     public function dataIsSwatchAttribute()
     {
         return [
diff --git a/app/code/Magento/Swatches/Test/Unit/Helper/MediaTest.php b/app/code/Magento/Swatches/Test/Unit/Helper/MediaTest.php
index 01fe483b07b55..ca812e0cccc41 100644
--- a/app/code/Magento/Swatches/Test/Unit/Helper/MediaTest.php
+++ b/app/code/Magento/Swatches/Test/Unit/Helper/MediaTest.php
@@ -136,6 +136,9 @@ public function testGetSwatchAttributeImage($swatchType, $expectedResult)
         $this->assertEquals($result, $expectedResult);
     }
 
+    /**
+     * @return array
+     */
     public function dataForFullPath()
     {
         return [
@@ -229,6 +232,9 @@ public function testGetFolderNameSize($swatchType, $imageConfig, $expectedResult
         $this->assertEquals($expectedResult, $result);
     }
 
+    /**
+     * @return array
+     */
     public function dataForFolderName()
     {
         return [
@@ -320,6 +326,9 @@ public function testGetSwatchCachePath($swatchType, $expectedResult)
         $this->assertEquals($expectedResult, $this->mediaHelperObject->getSwatchCachePath($swatchType));
     }
 
+    /**
+     * @return array
+     */
     public function getSwatchTypes()
     {
         return [
diff --git a/app/code/Magento/Swatches/Test/Unit/Model/Plugin/EavAttributeTest.php b/app/code/Magento/Swatches/Test/Unit/Model/Plugin/EavAttributeTest.php
index 26117fac61f99..6a34746903fa9 100644
--- a/app/code/Magento/Swatches/Test/Unit/Model/Plugin/EavAttributeTest.php
+++ b/app/code/Magento/Swatches/Test/Unit/Model/Plugin/EavAttributeTest.php
@@ -303,6 +303,9 @@ public function testBeforeSaveNotSwatch()
         $this->eavAttribute->beforeBeforeSave($this->attribute);
     }
 
+    /**
+     * @return array
+     */
     public function visualSwatchProvider()
     {
         return [
diff --git a/app/code/Magento/Swatches/Test/Unit/Model/Plugin/ProductImageTest.php b/app/code/Magento/Swatches/Test/Unit/Model/Plugin/ProductImageTest.php
index 75a4ed02f63be..b96dafe735cb3 100644
--- a/app/code/Magento/Swatches/Test/Unit/Model/Plugin/ProductImageTest.php
+++ b/app/code/Magento/Swatches/Test/Unit/Model/Plugin/ProductImageTest.php
@@ -109,6 +109,9 @@ public function testBeforeGetImage($expected)
         $this->assertEquals([$this->productMock, $expected['page_handle'], []], $result);
     }
 
+    /**
+     * @param $expected
+     */
     protected function getFilterArray($expected)
     {
         $this->eavConfigMock
@@ -127,6 +130,9 @@ protected function getFilterArray($expected)
             ->willReturn($expected['getId']);
     }
 
+    /**
+     * @param $expected
+     */
     protected function canReplaceImageWithSwatch($expected)
     {
         $this->swatchesHelperMock
diff --git a/app/code/Magento/Swatches/Test/Unit/Model/Plugin/ProductTest.php b/app/code/Magento/Swatches/Test/Unit/Model/Plugin/ProductTest.php
index 758aeecaccaee..69a7237cd9358 100644
--- a/app/code/Magento/Swatches/Test/Unit/Model/Plugin/ProductTest.php
+++ b/app/code/Magento/Swatches/Test/Unit/Model/Plugin/ProductTest.php
@@ -39,6 +39,9 @@ public function testAfterGetMediaAttributes($productType, $hasKey)
         }
     }
 
+    /**
+     * @return array
+     */
     public function dataRoles()
     {
         return [
diff --git a/app/code/Magento/Swatches/Test/Unit/Model/SwatchAttributeCodesTest.php b/app/code/Magento/Swatches/Test/Unit/Model/SwatchAttributeCodesTest.php
index 620507cf92dac..d13a717fbc029 100644
--- a/app/code/Magento/Swatches/Test/Unit/Model/SwatchAttributeCodesTest.php
+++ b/app/code/Magento/Swatches/Test/Unit/Model/SwatchAttributeCodesTest.php
@@ -156,6 +156,9 @@ public function testGetCodes($swatchAttributeCodesCache, $expected)
         $this->assertEquals($expected, $result);
     }
 
+    /**
+     * @return array
+     */
     public function dataForGettingCodes()
     {
         return [
diff --git a/app/code/Magento/Swatches/Test/Unit/Observer/AddFieldsToAttributeObserverTest.php b/app/code/Magento/Swatches/Test/Unit/Observer/AddFieldsToAttributeObserverTest.php
index e60922a053df4..ca2a530777ce4 100644
--- a/app/code/Magento/Swatches/Test/Unit/Observer/AddFieldsToAttributeObserverTest.php
+++ b/app/code/Magento/Swatches/Test/Unit/Observer/AddFieldsToAttributeObserverTest.php
@@ -83,6 +83,9 @@ public function testAddFields($expected)
         $this->observerMock->execute($this->eventObserverMock);
     }
 
+    /**
+     * @return array
+     */
     public function dataAddFields()
     {
         return [
diff --git a/app/code/Magento/Swatches/Test/Unit/Observer/AddSwatchAttributeTypeObserverTest.php b/app/code/Magento/Swatches/Test/Unit/Observer/AddSwatchAttributeTypeObserverTest.php
index d26dc4a000f84..33347955c2fa8 100644
--- a/app/code/Magento/Swatches/Test/Unit/Observer/AddSwatchAttributeTypeObserverTest.php
+++ b/app/code/Magento/Swatches/Test/Unit/Observer/AddSwatchAttributeTypeObserverTest.php
@@ -75,6 +75,9 @@ public function testAddSwatchAttributeType($exp)
         $this->observerMock->execute($this->eventObserverMock);
     }
 
+    /**
+     * @return array
+     */
     public function dataAddSwatch()
     {
         return [
diff --git a/app/code/Magento/Tax/Test/Unit/Block/Checkout/ShippingTest.php b/app/code/Magento/Tax/Test/Unit/Block/Checkout/ShippingTest.php
index e6a349ae7814f..a71e692ebf9a5 100644
--- a/app/code/Magento/Tax/Test/Unit/Block/Checkout/ShippingTest.php
+++ b/app/code/Magento/Tax/Test/Unit/Block/Checkout/ShippingTest.php
@@ -44,6 +44,9 @@ public function testDisplayShipping($shippingMethod, $expectedResult)
         $this->assertEquals($expectedResult, $this->model->displayShipping());
     }
 
+    /**
+     * @return array
+     */
     public function displayShippingDataProvider()
     {
         return [
diff --git a/app/code/Magento/Tax/Test/Unit/Block/Item/Price/RendererTest.php b/app/code/Magento/Tax/Test/Unit/Block/Item/Price/RendererTest.php
index 2978cb7fc631f..509d46762ac7d 100644
--- a/app/code/Magento/Tax/Test/Unit/Block/Item/Price/RendererTest.php
+++ b/app/code/Magento/Tax/Test/Unit/Block/Item/Price/RendererTest.php
@@ -94,6 +94,9 @@ public function testDisplayPriceInclTax($zone, $methodName)
         $this->assertEquals($flag, $this->renderer->displayPriceInclTax());
     }
 
+    /**
+     * @return array
+     */
     public function testDisplayPriceInclTaxDataProvider()
     {
         $data = [
@@ -141,6 +144,9 @@ public function testDisplayPriceExclTax($zone, $methodName)
         $this->assertEquals($flag, $this->renderer->displayPriceExclTax());
     }
 
+    /**
+     * @return array
+     */
     public function testDisplayPriceExclTaxDataProvider()
     {
         $data = [
@@ -188,6 +194,9 @@ public function testDisplayBothPrices($zone, $methodName)
         $this->assertEquals($flag, $this->renderer->displayBothPrices());
     }
 
+    /**
+     * @return array
+     */
     public function testDisplayBothPricesDataProvider()
     {
         $data = [
diff --git a/app/code/Magento/Tax/Test/Unit/Model/Calculation/RateRepositoryTest.php b/app/code/Magento/Tax/Test/Unit/Model/Calculation/RateRepositoryTest.php
index c98aa6cd727a9..3b3d41e221e33 100644
--- a/app/code/Magento/Tax/Test/Unit/Model/Calculation/RateRepositoryTest.php
+++ b/app/code/Magento/Tax/Test/Unit/Model/Calculation/RateRepositoryTest.php
@@ -345,6 +345,9 @@ public function testSaveThrowsExceptionIfCannotSaveTitles($expectedException, $e
         $this->model->save($rateMock);
     }
 
+    /**
+     * @return array
+     */
     public function saveThrowsExceptionIfCannotSaveTitlesDataProvider()
     {
         return [
diff --git a/app/code/Magento/Tax/Test/Unit/Model/Plugin/OrderSaveTest.php b/app/code/Magento/Tax/Test/Unit/Model/Plugin/OrderSaveTest.php
index 70444b360801c..79ab2c709f2c8 100644
--- a/app/code/Magento/Tax/Test/Unit/Model/Plugin/OrderSaveTest.php
+++ b/app/code/Magento/Tax/Test/Unit/Model/Plugin/OrderSaveTest.php
@@ -63,6 +63,9 @@ protected function setUp()
         );
     }
 
+    /**
+     * @return \PHPUnit_Framework_MockObject_MockObject
+     */
     protected function setupOrderMock()
     {
         $orderMock = $this->getMockBuilder('\Magento\Sales\Model\Order')
@@ -80,6 +83,9 @@ protected function setupOrderMock()
         return $orderMock;
     }
 
+    /**
+     * @return \PHPUnit_Framework_MockObject_MockObject
+     */
     protected function setupExtensionAttributeMock()
     {
         $orderExtensionAttributeMock = $this->getMockBuilder('\Magento\Sales\Api\Data\OrderExtensionInterface')
@@ -95,6 +101,9 @@ protected function setupExtensionAttributeMock()
         return $orderExtensionAttributeMock;
     }
 
+    /**
+     * @param $expectedTaxes
+     */
     protected function verifyOrderTaxes($expectedTaxes)
     {
         $index = 0;
@@ -127,6 +136,9 @@ protected function verifyOrderTaxes($expectedTaxes)
         }
     }
 
+    /**
+     * @param $expectedItemTaxes
+     */
     public function verifyItemTaxes($expectedItemTaxes)
     {
         $index = 0;
diff --git a/app/code/Magento/Tax/Test/Unit/Model/Quote/GrandTotalDetailsPluginTest.php b/app/code/Magento/Tax/Test/Unit/Model/Quote/GrandTotalDetailsPluginTest.php
index ec69f9930e6c1..041cca389075f 100644
--- a/app/code/Magento/Tax/Test/Unit/Model/Quote/GrandTotalDetailsPluginTest.php
+++ b/app/code/Magento/Tax/Test/Unit/Model/Quote/GrandTotalDetailsPluginTest.php
@@ -87,6 +87,10 @@ protected function setUp()
         );
     }
 
+    /**
+     * @param array $data
+     * @return \PHPUnit_Framework_MockObject_MockObject
+     */
     protected function setupTaxTotal(array $data)
     {
         $taxTotalMock = $this->getMockBuilder('\Magento\Quote\Model\Quote\Address\Total')
@@ -100,6 +104,10 @@ protected function setupTaxTotal(array $data)
         return $taxTotalMock;
     }
 
+    /**
+     * @param array $taxRate
+     * @return \PHPUnit_Framework_MockObject_MockObject
+     */
     protected function setupTaxRateFactoryMock(array $taxRate)
     {
         $taxRateMock = $this->getMockBuilder('\Magento\Tax\Api\Data\GrandTotalRatesInterface')
@@ -121,6 +129,10 @@ protected function setupTaxRateFactoryMock(array $taxRate)
         return $taxRateMock;
     }
 
+    /**
+     * @param array $taxDetails
+     * @return \PHPUnit_Framework_MockObject_MockObject
+     */
     protected function setupTaxDetails(array $taxDetails)
     {
         $taxDetailsMock = $this->getMockBuilder('\Magento\Tax\Api\Data\GrandTotalDetailsInterface')
diff --git a/app/code/Magento/Tax/Test/Unit/Model/Quote/ToOrderConverterTest.php b/app/code/Magento/Tax/Test/Unit/Model/Quote/ToOrderConverterTest.php
index 4f8db8c586949..22b5dab2c8acd 100644
--- a/app/code/Magento/Tax/Test/Unit/Model/Quote/ToOrderConverterTest.php
+++ b/app/code/Magento/Tax/Test/Unit/Model/Quote/ToOrderConverterTest.php
@@ -60,6 +60,9 @@ protected function setUp()
         );
     }
 
+    /**
+     * @return \PHPUnit_Framework_MockObject_MockObject
+     */
     protected function setupOrderExtensionAttributeMock()
     {
         $orderExtensionAttributeMock = $this->getMockBuilder('\Magento\Sales\Api\Data\OrderExtensionInterface')
diff --git a/app/code/Magento/Tax/Test/Unit/Model/Sales/Total/Quote/CommonTaxCollectorTest.php b/app/code/Magento/Tax/Test/Unit/Model/Sales/Total/Quote/CommonTaxCollectorTest.php
index 7fa5c2ac45df0..2a47be8d7ae42 100644
--- a/app/code/Magento/Tax/Test/Unit/Model/Sales/Total/Quote/CommonTaxCollectorTest.php
+++ b/app/code/Magento/Tax/Test/Unit/Model/Sales/Total/Quote/CommonTaxCollectorTest.php
@@ -178,6 +178,9 @@ public function testGetShippingDataObject(
         }
     }
 
+    /**
+     * @return array
+     */
     public function getShippingDataObjectDataProvider()
     {
         $data = [
diff --git a/app/code/Magento/Tax/Test/Unit/Model/Sales/Total/Quote/TaxTest.php b/app/code/Magento/Tax/Test/Unit/Model/Sales/Total/Quote/TaxTest.php
index 9ff681a7607e6..0de3826ccd302 100644
--- a/app/code/Magento/Tax/Test/Unit/Model/Sales/Total/Quote/TaxTest.php
+++ b/app/code/Magento/Tax/Test/Unit/Model/Sales/Total/Quote/TaxTest.php
@@ -552,6 +552,9 @@ public function testMapQuoteExtraTaxables($itemData, $addressData)
     /*
      * @return array
      */
+    /**
+     * @return array
+     */
     public function dataProviderMapQuoteExtraTaxablesArray()
     {
         $data = [
diff --git a/app/code/Magento/Tax/Test/Unit/Model/System/Message/Notification/ApplyDiscountOnPricesTest.php b/app/code/Magento/Tax/Test/Unit/Model/System/Message/Notification/ApplyDiscountOnPricesTest.php
index 7b136e6617e2f..fa6540bcdd8d6 100644
--- a/app/code/Magento/Tax/Test/Unit/Model/System/Message/Notification/ApplyDiscountOnPricesTest.php
+++ b/app/code/Magento/Tax/Test/Unit/Model/System/Message/Notification/ApplyDiscountOnPricesTest.php
@@ -95,6 +95,9 @@ public function testIsDisplayed(
         $this->assertEquals($expectedResult, $this->applyDiscountOnPricesNotification->isDisplayed());
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderIsDisplayed()
     {
         return [
diff --git a/app/code/Magento/Tax/Test/Unit/Model/System/Message/NotificationsTest.php b/app/code/Magento/Tax/Test/Unit/Model/System/Message/NotificationsTest.php
index 665810194ea66..f709b735d80ba 100644
--- a/app/code/Magento/Tax/Test/Unit/Model/System/Message/NotificationsTest.php
+++ b/app/code/Magento/Tax/Test/Unit/Model/System/Message/NotificationsTest.php
@@ -73,6 +73,9 @@ public function testIsDisplayed(
         $this->assertEquals($expectedResult, $this->notifications->isDisplayed());
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderIsDisplayed()
     {
         return [
diff --git a/app/code/Magento/Tax/Test/Unit/Model/TaxClass/FactoryTest.php b/app/code/Magento/Tax/Test/Unit/Model/TaxClass/FactoryTest.php
index 31bf319ce2693..d387d6d22821b 100644
--- a/app/code/Magento/Tax/Test/Unit/Model/TaxClass/FactoryTest.php
+++ b/app/code/Magento/Tax/Test/Unit/Model/TaxClass/FactoryTest.php
@@ -42,6 +42,9 @@ public function testCreate($classType, $className, $classTypeMock)
         $this->assertEquals($classTypeMock, $taxClassFactory->create($classMock));
     }
 
+    /**
+     * @return array
+     */
     public function createDataProvider()
     {
         $customerClassMock = $this->getMock('Magento\Tax\Model\TaxClass\Type\Customer', [], [], '', false);
diff --git a/app/code/Magento/Tax/Test/Unit/Model/TaxRuleRepositoryTest.php b/app/code/Magento/Tax/Test/Unit/Model/TaxRuleRepositoryTest.php
index 1c42118d4443f..b87670e498c3a 100644
--- a/app/code/Magento/Tax/Test/Unit/Model/TaxRuleRepositoryTest.php
+++ b/app/code/Magento/Tax/Test/Unit/Model/TaxRuleRepositoryTest.php
@@ -162,6 +162,9 @@ public function testSaveWithExceptions($exceptionObject, $exceptionName, $except
         $this->model->save($rule);
     }
 
+    /**
+     * @return array
+     */
     public function saveExceptionsDataProvider()
     {
         return [
diff --git a/app/code/Magento/Tax/Test/Unit/Pricing/AdjustmentTest.php b/app/code/Magento/Tax/Test/Unit/Pricing/AdjustmentTest.php
index 9815f89e7de95..8d6027489b43d 100644
--- a/app/code/Magento/Tax/Test/Unit/Pricing/AdjustmentTest.php
+++ b/app/code/Magento/Tax/Test/Unit/Pricing/AdjustmentTest.php
@@ -56,6 +56,9 @@ public function testIsIncludedInBasePrice($expectedResult)
         $this->assertEquals($expectedResult, $this->adjustment->isIncludedInBasePrice());
     }
 
+    /**
+     * @return array
+     */
     public function isIncludedInBasePriceDataProvider()
     {
         return [[true], [false]];
@@ -113,6 +116,9 @@ public function testExtractAdjustment($isPriceIncludesTax, $amount, $price, $exp
         $this->assertEquals($expectedResult, $this->adjustment->extractAdjustment($amount, $object));
     }
 
+    /**
+     * @return array
+     */
     public function extractAdjustmentDataProvider()
     {
         return [
@@ -164,6 +170,9 @@ public function testIsExcludedWith($adjustmentCode, $expectedResult)
         $this->assertEquals($expectedResult, $this->adjustment->isExcludedWith($adjustmentCode));
     }
 
+    /**
+     * @return array
+     */
     public function isExcludedWithDataProvider()
     {
         return [
diff --git a/app/code/Magento/Theme/Test/Unit/Block/Html/TopmenuTest.php b/app/code/Magento/Theme/Test/Unit/Block/Html/TopmenuTest.php
index 137114ad4bc35..8d73f9f077e19 100644
--- a/app/code/Magento/Theme/Test/Unit/Block/Html/TopmenuTest.php
+++ b/app/code/Magento/Theme/Test/Unit/Block/Html/TopmenuTest.php
@@ -111,6 +111,9 @@ protected function setUp()
         );
     }
 
+    /**
+     * @return Topmenu
+     */
     protected function getTopmenu()
     {
         return new Topmenu($this->context, $this->nodeFactory, $this->treeFactory);
diff --git a/app/code/Magento/Theme/Test/Unit/Model/Design/Backend/ThemeTest.php b/app/code/Magento/Theme/Test/Unit/Model/Design/Backend/ThemeTest.php
index 978a813f58290..c0137159cc0f7 100644
--- a/app/code/Magento/Theme/Test/Unit/Model/Design/Backend/ThemeTest.php
+++ b/app/code/Magento/Theme/Test/Unit/Model/Design/Backend/ThemeTest.php
@@ -123,6 +123,9 @@ public function testGetValue($value, $expectedResult)
         $this->assertEquals($expectedResult, $this->model->getValue());
     }
 
+    /**
+     * @return array
+     */
     public function getValueDataProvider()
     {
         return [
@@ -131,6 +134,9 @@ public function getValueDataProvider()
         ];
     }
 
+    /**
+     * @return array
+     */
     public function afterSaveDataProvider()
     {
         return [
diff --git a/app/code/Magento/Theme/Test/Unit/Model/Theme/ValidationTest.php b/app/code/Magento/Theme/Test/Unit/Model/Theme/ValidationTest.php
index eb924df52428b..5cc7264f7aa29 100644
--- a/app/code/Magento/Theme/Test/Unit/Model/Theme/ValidationTest.php
+++ b/app/code/Magento/Theme/Test/Unit/Model/Theme/ValidationTest.php
@@ -31,6 +31,9 @@ public function testValidate(array $data, $result, array $messages)
         $this->assertEquals($messages, $validator->getErrorMessages());
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderValidate()
     {
         return [
diff --git a/app/code/Magento/Theme/Test/Unit/Model/Url/Plugin/SignatureTest.php b/app/code/Magento/Theme/Test/Unit/Model/Url/Plugin/SignatureTest.php
index 1ff6e98ebe3ae..c2f5c6d6e6f52 100644
--- a/app/code/Magento/Theme/Test/Unit/Model/Url/Plugin/SignatureTest.php
+++ b/app/code/Magento/Theme/Test/Unit/Model/Url/Plugin/SignatureTest.php
@@ -63,6 +63,9 @@ public function testAroundGetBaseUrlInactive($fixtureConfigFlag, $inputUrlType)
         $this->assertEquals('http://127.0.0.1/magento/pub/static/', $actualResult);
     }
 
+    /**
+     * @return array
+     */
     public function aroundGetBaseUrlInactiveDataProvider()
     {
         return [
diff --git a/app/code/Magento/Theme/Test/Unit/Model/Wysiwyg/StorageTest.php b/app/code/Magento/Theme/Test/Unit/Model/Wysiwyg/StorageTest.php
index c68e99a35fa69..759f5f2f6fbc2 100644
--- a/app/code/Magento/Theme/Test/Unit/Model/Wysiwyg/StorageTest.php
+++ b/app/code/Magento/Theme/Test/Unit/Model/Wysiwyg/StorageTest.php
@@ -179,6 +179,9 @@ public function testUploadInvalidFile()
         $this->_storageModel->uploadFile($this->_storageRoot);
     }
 
+    /**
+     * @return \PHPUnit_Framework_MockObject_MockObject
+     */
     protected function _prepareUploader()
     {
         $uploader = $this->getMockBuilder(\Magento\MediaStorage\Model\File\Uploader::class)
@@ -550,6 +553,9 @@ public function testDeleteRootDirectory()
         $this->_storageModel->deleteDirectory($directoryPath);
     }
 
+    /**
+     * @return array
+     */
     public function booleanCasesDataProvider()
     {
         return [[true], [false]];
diff --git a/app/code/Magento/Theme/Test/Unit/Ui/Component/Listing/Column/EditActionTest.php b/app/code/Magento/Theme/Test/Unit/Ui/Component/Listing/Column/EditActionTest.php
index e6a55956adc84..b4c6bbf490bf7 100644
--- a/app/code/Magento/Theme/Test/Unit/Ui/Component/Listing/Column/EditActionTest.php
+++ b/app/code/Magento/Theme/Test/Unit/Ui/Component/Listing/Column/EditActionTest.php
@@ -88,6 +88,9 @@ public function testPrepareDataSource($dataSourceItem, $scope, $scopeId)
         $this->assertEquals($expectedDataSource, $dataSource);
     }
 
+    /**
+     * @return array
+     */
     public function getPrepareDataSourceDataProvider()
     {
         return [
diff --git a/app/code/Magento/Ui/Test/Unit/Component/Form/Element/AbstractElementTest.php b/app/code/Magento/Ui/Test/Unit/Component/Form/Element/AbstractElementTest.php
index ed6eda85dcd35..33e0488f306b4 100644
--- a/app/code/Magento/Ui/Test/Unit/Component/Form/Element/AbstractElementTest.php
+++ b/app/code/Magento/Ui/Test/Unit/Component/Form/Element/AbstractElementTest.php
@@ -54,6 +54,9 @@ protected function setUp()
      */
     abstract protected function getModelName();
 
+    /**
+     * @return mixed
+     */
     abstract public function testGetComponentName();
 
     /**
diff --git a/app/code/Magento/Ui/Test/Unit/Component/Form/Element/WysiwygTest.php b/app/code/Magento/Ui/Test/Unit/Component/Form/Element/WysiwygTest.php
index d0e0542a19480..7413f7904dcaa 100644
--- a/app/code/Magento/Ui/Test/Unit/Component/Form/Element/WysiwygTest.php
+++ b/app/code/Magento/Ui/Test/Unit/Component/Form/Element/WysiwygTest.php
@@ -62,6 +62,9 @@ protected function setUp()
             ->method('getElementHtml');
     }
 
+    /**
+     * @return \Magento\Ui\Component\Form\Element\AbstractElement|object
+     */
     protected function getModel()
     {
         return $this->objectManager->getObject(Wysiwyg::class, [
diff --git a/app/code/Magento/Ui/Test/Unit/Component/MassActionTest.php b/app/code/Magento/Ui/Test/Unit/Component/MassActionTest.php
index f16ef497d707e..a5815b977ddce 100644
--- a/app/code/Magento/Ui/Test/Unit/Component/MassActionTest.php
+++ b/app/code/Magento/Ui/Test/Unit/Component/MassActionTest.php
@@ -92,6 +92,9 @@ public function testPrepare($componentName, $componentData)
         $this->assertEquals(['actions' => [$action->getConfiguration()]], $massAction->getConfiguration());
     }
 
+    /**
+     * @return array
+     */
     public function getPrepareDataProvider()
     {
         return [
diff --git a/app/code/Magento/Ui/Test/Unit/Model/ManagerTest.php b/app/code/Magento/Ui/Test/Unit/Model/ManagerTest.php
index 2528d69584cf7..a0d234ec6d978 100644
--- a/app/code/Magento/Ui/Test/Unit/Model/ManagerTest.php
+++ b/app/code/Magento/Ui/Test/Unit/Model/ManagerTest.php
@@ -169,6 +169,9 @@ public function testPrepareGetData($componentName, $componentData, $isCached, $r
         );
     }
 
+    /**
+     * @return array
+     */
     public function getComponentData()
     {
         $cachedData = new \ArrayObject(
@@ -269,6 +272,9 @@ public function testCreateRawComponentData($componentName, $configData, $compone
         $this->assertEquals($componentData, $this->manager->createRawComponentData($componentName, $needEvaluate));
     }
 
+    /**
+     * @return array
+     */
     public function getComponentDataProvider()
     {
         return [
diff --git a/app/code/Magento/UrlRewrite/Test/Unit/Helper/UrlRewriteTest.php b/app/code/Magento/UrlRewrite/Test/Unit/Helper/UrlRewriteTest.php
index 0207bb0340868..defce8d5a8551 100644
--- a/app/code/Magento/UrlRewrite/Test/Unit/Helper/UrlRewriteTest.php
+++ b/app/code/Magento/UrlRewrite/Test/Unit/Helper/UrlRewriteTest.php
@@ -53,6 +53,9 @@ public function testValidateSuffixException($suffix)
         $this->_helper->validateSuffix($suffix);
     }
 
+    /**
+     * @return array
+     */
     public function requestPathDataProvider()
     {
         return [
@@ -61,6 +64,9 @@ public function requestPathDataProvider()
         ];
     }
 
+    /**
+     * @return array
+     */
     public function requestPathExceptionDataProvider()
     {
         return [
diff --git a/app/code/Magento/Variable/Test/Unit/Model/VariableTest.php b/app/code/Magento/Variable/Test/Unit/Model/VariableTest.php
index bc99f4af6ad78..402e5c9dc2d52 100644
--- a/app/code/Magento/Variable/Test/Unit/Model/VariableTest.php
+++ b/app/code/Magento/Variable/Test/Unit/Model/VariableTest.php
@@ -99,6 +99,9 @@ public function testValidate($variableArray, $objectId, $expectedResult)
         $this->assertEquals($expectedResult, $this->model->validate($variableArray));
     }
 
+    /**
+     * @return array
+     */
     public function validateDataProvider()
     {
         $variable = [
@@ -111,6 +114,9 @@ public function validateDataProvider()
         ];
     }
 
+    /**
+     * @return array
+     */
     public function validateMissingInfoDataProvider()
     {
         return [
diff --git a/app/code/Magento/Vault/Test/Unit/Observer/AfterPaymentSaveObserverTest.php b/app/code/Magento/Vault/Test/Unit/Observer/AfterPaymentSaveObserverTest.php
index 4cbf96bca03b1..db81587b08a79 100644
--- a/app/code/Magento/Vault/Test/Unit/Observer/AfterPaymentSaveObserverTest.php
+++ b/app/code/Magento/Vault/Test/Unit/Observer/AfterPaymentSaveObserverTest.php
@@ -160,6 +160,9 @@ public function testPositiveCase($customerId, $createdAt, $token, $isActive, $me
         static::assertEquals($createdAt, $paymentToken->getCreatedAt());
     }
 
+    /**
+     * @return array
+     */
     public function testPositiveCaseDataProvider()
     {
         return [
diff --git a/app/code/Magento/Webapi/Test/Unit/Controller/PathProcessorTest.php b/app/code/Magento/Webapi/Test/Unit/Controller/PathProcessorTest.php
index ac9a761f41e7d..5762d09b962a0 100644
--- a/app/code/Magento/Webapi/Test/Unit/Controller/PathProcessorTest.php
+++ b/app/code/Magento/Webapi/Test/Unit/Controller/PathProcessorTest.php
@@ -51,6 +51,9 @@ public function testAllStoreCode($storeCodeInPath, $storeCodeSet, $setCurrentSto
         $this->assertSame($this->endpointPath, $result);
     }
 
+    /**
+     * @return array
+     */
     public function processPathDataProvider()
     {
         return [
diff --git a/app/code/Magento/Webapi/Test/Unit/Model/Authorization/TokenUserContextTest.php b/app/code/Magento/Webapi/Test/Unit/Model/Authorization/TokenUserContextTest.php
index 7b88365544a5c..1426e3da04198 100644
--- a/app/code/Magento/Webapi/Test/Unit/Model/Authorization/TokenUserContextTest.php
+++ b/app/code/Magento/Webapi/Test/Unit/Model/Authorization/TokenUserContextTest.php
@@ -231,6 +231,9 @@ public function testValidToken($userType, $userId, $expectedUserType, $expectedU
         $this->assertEquals($expectedUserId, $this->tokenUserContext->getUserId());
     }
 
+    /**
+     * @return array
+     */
     public function getValidTokenData()
     {
         return [
diff --git a/app/code/Magento/Webapi/Test/Unit/Model/Files/TestDataObject.php b/app/code/Magento/Webapi/Test/Unit/Model/Files/TestDataObject.php
index 4d087cb741fe0..09100dc6fa7aa 100644
--- a/app/code/Magento/Webapi/Test/Unit/Model/Files/TestDataObject.php
+++ b/app/code/Magento/Webapi/Test/Unit/Model/Files/TestDataObject.php
@@ -8,21 +8,33 @@
 
 class TestDataObject implements TestDataInterface
 {
+    /**
+     * @return string
+     */
     public function getId()
     {
         return '1';
     }
 
+    /**
+     * @return string
+     */
     public function getAddress()
     {
         return 'someAddress';
     }
 
+    /**
+     * @return string
+     */
     public function isDefaultShipping()
     {
         return 'true';
     }
 
+    /**
+     * @return string
+     */
     public function isRequiredBilling()
     {
         return 'false';
diff --git a/app/code/Magento/Webapi/Test/Unit/Model/Rest/Swagger/GeneratorTest.php b/app/code/Magento/Webapi/Test/Unit/Model/Rest/Swagger/GeneratorTest.php
index 0c316c249f63d..d857ec8cd2c13 100644
--- a/app/code/Magento/Webapi/Test/Unit/Model/Rest/Swagger/GeneratorTest.php
+++ b/app/code/Magento/Webapi/Test/Unit/Model/Rest/Swagger/GeneratorTest.php
@@ -275,6 +275,9 @@ public function testGetObjectSchema($typeName, $description, $result)
         $this->assertSame(json_encode($result), json_encode($actual));
     }
 
+    /**
+     * @return array
+     */
     public function testGetObjectSchemaDataProvider()
     {
         return [
@@ -334,6 +337,9 @@ public function testGenerateDefinition($typeData, $expected)
         $this->assertSame(json_encode($expected), json_encode($actual));
     }
 
+    /**
+     * @return array
+     */
     public function testGenerateDefinitionDataProvider()
     {
         return [
diff --git a/app/code/Magento/Weee/Test/Unit/Block/Item/Price/RendererTest.php b/app/code/Magento/Weee/Test/Unit/Block/Item/Price/RendererTest.php
index 373dc7fba5528..6bf49bac5a2e7 100644
--- a/app/code/Magento/Weee/Test/Unit/Block/Item/Price/RendererTest.php
+++ b/app/code/Magento/Weee/Test/Unit/Block/Item/Price/RendererTest.php
@@ -122,6 +122,9 @@ public function testDisplayPriceWithWeeeDetails(
         $this->assertEquals($expectedValue, $this->renderer->displayPriceWithWeeeDetails());
     }
 
+    /**
+     * @return array
+     */
     public function testDisplayPriceWithWeeeDetailsDataProvider()
     {
         $data = [
@@ -472,6 +475,9 @@ public function testGetBaseRowDisplayPriceInclTax(
         $this->assertEquals($expectedValue, $this->renderer->getBaseRowDisplayPriceInclTax());
     }
 
+    /**
+     * @return array
+     */
     public function testGetDisplayPriceDataProvider()
     {
         $data = [
@@ -739,6 +745,9 @@ public function testGetBaseFinalRowDisplayPriceInclTax(
         $this->assertEquals($expectedValue, $this->renderer->getBaseFinalRowDisplayPriceInclTax());
     }
 
+    /**
+     * @return array
+     */
     public function testGetFinalDisplayPriceDataProvider()
     {
         $data = [
diff --git a/app/code/Magento/Weee/Test/Unit/Model/Total/Invoice/WeeeTest.php b/app/code/Magento/Weee/Test/Unit/Model/Total/Invoice/WeeeTest.php
index b869ca2e955df..65badb9ef5c57 100644
--- a/app/code/Magento/Weee/Test/Unit/Model/Total/Invoice/WeeeTest.php
+++ b/app/code/Magento/Weee/Test/Unit/Model/Total/Invoice/WeeeTest.php
@@ -86,6 +86,9 @@ protected function setUp()
         $this->invoice->expects($this->atLeastOnce())->method('getOrder')->will($this->returnValue($this->order));
     }
 
+    /**
+     * @param $orderData
+     */
     private function setupOrder($orderData)
     {
         //Set up order mock
diff --git a/app/code/Magento/Weee/Test/Unit/Pricing/AdjustmentTest.php b/app/code/Magento/Weee/Test/Unit/Pricing/AdjustmentTest.php
index 12dad451604e9..832a0334addfa 100644
--- a/app/code/Magento/Weee/Test/Unit/Pricing/AdjustmentTest.php
+++ b/app/code/Magento/Weee/Test/Unit/Pricing/AdjustmentTest.php
@@ -134,6 +134,9 @@ public function testIsExcludedWith($adjustmentCode, $expectedResult)
         $this->assertEquals($expectedResult, $this->adjustment->isExcludedWith($adjustmentCode));
     }
 
+    /**
+     * @return array
+     */
     public function isExcludedWithDataProvider()
     {
         return [
@@ -157,6 +160,9 @@ public function testGetSortOrder($isTaxable, $expectedResult)
         $this->assertEquals($expectedResult, $this->adjustment->getSortOrder());
     }
 
+    /**
+     * @return array
+     */
     public function getSortOrderProvider()
     {
         return [
diff --git a/app/code/Magento/Wishlist/Test/Unit/Controller/Index/AllcartTest.php b/app/code/Magento/Wishlist/Test/Unit/Controller/Index/AllcartTest.php
index fadbcf512bda6..5b4f6cbb360c3 100644
--- a/app/code/Magento/Wishlist/Test/Unit/Controller/Index/AllcartTest.php
+++ b/app/code/Magento/Wishlist/Test/Unit/Controller/Index/AllcartTest.php
@@ -133,6 +133,9 @@ protected function prepareContext()
             ->willReturn($this->resultFactoryMock);
     }
 
+    /**
+     * @return \Magento\Wishlist\Controller\Index\Allcart
+     */
     public function getController()
     {
         $this->prepareContext();
diff --git a/app/code/Magento/Wishlist/Test/Unit/Controller/Index/IndexTest.php b/app/code/Magento/Wishlist/Test/Unit/Controller/Index/IndexTest.php
index 095350cbaacb0..6bef67bb5f1ba 100644
--- a/app/code/Magento/Wishlist/Test/Unit/Controller/Index/IndexTest.php
+++ b/app/code/Magento/Wishlist/Test/Unit/Controller/Index/IndexTest.php
@@ -120,6 +120,9 @@ protected function prepareContext()
             ->willReturn($this->resultFactoryMock);
     }
 
+    /**
+     * @return \Magento\Wishlist\Controller\Index\Index
+     */
     public function getController()
     {
         $this->prepareContext();
diff --git a/app/code/Magento/Wishlist/Test/Unit/Controller/Index/PluginTest.php b/app/code/Magento/Wishlist/Test/Unit/Controller/Index/PluginTest.php
index 7a6ad6305d8a8..c032ae2c9add5 100644
--- a/app/code/Magento/Wishlist/Test/Unit/Controller/Index/PluginTest.php
+++ b/app/code/Magento/Wishlist/Test/Unit/Controller/Index/PluginTest.php
@@ -67,6 +67,9 @@ protected function tearDown()
         );
     }
 
+    /**
+     * @return \Magento\Wishlist\Controller\Index\Plugin
+     */
     protected function getPlugin()
     {
         return new \Magento\Wishlist\Controller\Index\Plugin(
diff --git a/app/code/Magento/Wishlist/Test/Unit/Controller/Index/RemoveTest.php b/app/code/Magento/Wishlist/Test/Unit/Controller/Index/RemoveTest.php
index d2574664e3d55..35f0eb6d173af 100644
--- a/app/code/Magento/Wishlist/Test/Unit/Controller/Index/RemoveTest.php
+++ b/app/code/Magento/Wishlist/Test/Unit/Controller/Index/RemoveTest.php
@@ -139,6 +139,9 @@ protected function prepareContext()
             ->willReturn($this->resultFactoryMock);
     }
 
+    /**
+     * @return \Magento\Wishlist\Controller\Index\Remove
+     */
     public function getController()
     {
         $this->prepareContext();
diff --git a/app/code/Magento/Wishlist/Test/Unit/Model/ItemTest.php b/app/code/Magento/Wishlist/Test/Unit/Model/ItemTest.php
index 893c5c17989fd..9a2795616e7a7 100644
--- a/app/code/Magento/Wishlist/Test/Unit/Model/ItemTest.php
+++ b/app/code/Magento/Wishlist/Test/Unit/Model/ItemTest.php
@@ -171,6 +171,9 @@ public function testRemoveOptionByCode($code, $option)
         $this->assertTrue($actualOption->isDeleted());
     }
 
+    /**
+     * @return array
+     */
     public function getOptionsDataProvider()
     {
         $optionMock = $this->getMockBuilder('Magento\Wishlist\Model\Item\Option')
diff --git a/app/code/Magento/Wishlist/Test/Unit/Model/LocaleQuantityProcessorTest.php b/app/code/Magento/Wishlist/Test/Unit/Model/LocaleQuantityProcessorTest.php
index 99e45e47f0421..810863dd42a5a 100644
--- a/app/code/Magento/Wishlist/Test/Unit/Model/LocaleQuantityProcessorTest.php
+++ b/app/code/Magento/Wishlist/Test/Unit/Model/LocaleQuantityProcessorTest.php
@@ -60,6 +60,9 @@ public function testProcess($qtyResult, $expectedResult)
         $this->assertEquals($expectedResult, $this->processor->process($qty));
     }
 
+    /**
+     * @return array
+     */
     public function processDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Acl/AclResource/Config/SchemaLocator.php b/lib/internal/Magento/Framework/Acl/AclResource/Config/SchemaLocator.php
index e6b8023f04ccb..aee90e1e20889 100644
--- a/lib/internal/Magento/Framework/Acl/AclResource/Config/SchemaLocator.php
+++ b/lib/internal/Magento/Framework/Acl/AclResource/Config/SchemaLocator.php
@@ -12,6 +12,10 @@ class SchemaLocator implements \Magento\Framework\Config\SchemaLocatorInterface
     /** @var \Magento\Framework\Config\Dom\UrnResolver */
     protected $urnResolver;
 
+    /**
+     * SchemaLocator constructor.
+     * @param \Magento\Framework\Config\Dom\UrnResolver $urnResolver
+     */
     public function __construct(\Magento\Framework\Config\Dom\UrnResolver $urnResolver)
     {
         $this->urnResolver = $urnResolver;
diff --git a/lib/internal/Magento/Framework/Acl/Test/Unit/CacheTest.php b/lib/internal/Magento/Framework/Acl/Test/Unit/CacheTest.php
index b611a5ae90e04..50fad06093c30 100644
--- a/lib/internal/Magento/Framework/Acl/Test/Unit/CacheTest.php
+++ b/lib/internal/Magento/Framework/Acl/Test/Unit/CacheTest.php
@@ -88,6 +88,9 @@ public function testHasWithAcl($dataAcl)
         $this->assertTrue($this->model->has());
     }
 
+    /**
+     * @param $aclData
+     */
     protected function initAcl($aclData)
     {
         $this->cacheConfig->expects($this->once())
diff --git a/lib/internal/Magento/Framework/Acl/Test/Unit/Role/RegistryTest.php b/lib/internal/Magento/Framework/Acl/Test/Unit/Role/RegistryTest.php
index 9c963577dba96..506fe84ee1ec7 100644
--- a/lib/internal/Magento/Framework/Acl/Test/Unit/Role/RegistryTest.php
+++ b/lib/internal/Magento/Framework/Acl/Test/Unit/Role/RegistryTest.php
@@ -20,6 +20,12 @@ protected function setUp()
         $this->model = new Registry();
     }
 
+    /**
+     * @param $roleId
+     * @param $parentRoleId
+     * @return array
+     * @throws \Zend_Acl_Role_Registry_Exception
+     */
     protected function initRoles($roleId, $parentRoleId)
     {
         $parentRole = $this->getMock('Zend_Acl_Role_Interface');
diff --git a/lib/internal/Magento/Framework/Api/ExtensionAttribute/Config/SchemaLocator.php b/lib/internal/Magento/Framework/Api/ExtensionAttribute/Config/SchemaLocator.php
index 6b346be8962b2..329f2fe31383e 100644
--- a/lib/internal/Magento/Framework/Api/ExtensionAttribute/Config/SchemaLocator.php
+++ b/lib/internal/Magento/Framework/Api/ExtensionAttribute/Config/SchemaLocator.php
@@ -12,6 +12,10 @@ class SchemaLocator implements \Magento\Framework\Config\SchemaLocatorInterface
     /** @var \Magento\Framework\Config\Dom\UrnResolver */
     protected $urnResolver;
 
+    /**
+     * SchemaLocator constructor.
+     * @param \Magento\Framework\Config\Dom\UrnResolver $urnResolver
+     */
     public function __construct(\Magento\Framework\Config\Dom\UrnResolver $urnResolver)
     {
         $this->urnResolver = $urnResolver;
diff --git a/lib/internal/Magento/Framework/Api/Test/Unit/Code/Generator/EntityChildTestAbstract.php b/lib/internal/Magento/Framework/Api/Test/Unit/Code/Generator/EntityChildTestAbstract.php
index 2554fda092c58..189ffc9b66938 100644
--- a/lib/internal/Magento/Framework/Api/Test/Unit/Code/Generator/EntityChildTestAbstract.php
+++ b/lib/internal/Magento/Framework/Api/Test/Unit/Code/Generator/EntityChildTestAbstract.php
@@ -31,12 +31,24 @@ abstract class EntityChildTestAbstract extends \PHPUnit_Framework_TestCase
     /** @var \PHPUnit_Framework_MockObject_MockObject | \Magento\Framework\Code\Generator\DefinedClasses */
     protected $definedClassesMock;
 
+    /**
+     * @return mixed
+     */
     abstract protected function getSourceClassName();
 
+    /**
+     * @return mixed
+     */
     abstract protected function getResultClassName();
 
+    /**
+     * @return mixed
+     */
     abstract protected function getGeneratorClassName();
 
+    /**
+     * @return mixed
+     */
     abstract protected function getOutputFileName();
 
     protected function setUp()
diff --git a/lib/internal/Magento/Framework/Api/Test/Unit/DataObjectHelperTest.php b/lib/internal/Magento/Framework/Api/Test/Unit/DataObjectHelperTest.php
index 22e2746df497c..576d764166771 100644
--- a/lib/internal/Magento/Framework/Api/Test/Unit/DataObjectHelperTest.php
+++ b/lib/internal/Magento/Framework/Api/Test/Unit/DataObjectHelperTest.php
@@ -366,6 +366,9 @@ public function testMergeDataObjects($data1, $data2)
         $this->assertSame($firstAddressDataObject->getRegion(), $secondAddressDataObject->getRegion());
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderForTestMergeDataObjects()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Api/Test/Unit/SortOrderTest.php b/lib/internal/Magento/Framework/Api/Test/Unit/SortOrderTest.php
index 100ac8bb7b00a..b11229a161fc0 100644
--- a/lib/internal/Magento/Framework/Api/Test/Unit/SortOrderTest.php
+++ b/lib/internal/Magento/Framework/Api/Test/Unit/SortOrderTest.php
@@ -37,6 +37,9 @@ public function testItReturnsTheCorrectValuesIfSortOrderIsSet($sortOrder)
         $this->assertSame($sortOrder, $this->sortOrder->getDirection());
     }
 
+    /**
+     * @return array
+     */
     public function sortOrderDirectionProvider()
     {
         return [[SortOrder::SORT_ASC], [SortOrder::SORT_DESC]];
@@ -52,6 +55,9 @@ public function testItThrowsAnExceptionIfAnInvalidSortOrderIsSet($invalidDirecti
         $this->sortOrder->setDirection($invalidDirection);
     }
 
+    /**
+     * @return array
+     */
     public function invalidSortDirectionProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/App/ResourceConnection/Config/SchemaLocator.php b/lib/internal/Magento/Framework/App/ResourceConnection/Config/SchemaLocator.php
index b6d3d38d9893e..e92a073ff9f5a 100644
--- a/lib/internal/Magento/Framework/App/ResourceConnection/Config/SchemaLocator.php
+++ b/lib/internal/Magento/Framework/App/ResourceConnection/Config/SchemaLocator.php
@@ -12,6 +12,10 @@ class SchemaLocator implements \Magento\Framework\Config\SchemaLocatorInterface
     /** @var \Magento\Framework\Config\Dom\UrnResolver */
     protected $urnResolver;
 
+    /**
+     * SchemaLocator constructor.
+     * @param \Magento\Framework\Config\Dom\UrnResolver $urnResolver
+     */
     public function __construct(\Magento\Framework\Config\Dom\UrnResolver $urnResolver)
     {
         $this->urnResolver = $urnResolver;
diff --git a/lib/internal/Magento/Framework/App/Route/Config/SchemaLocator.php b/lib/internal/Magento/Framework/App/Route/Config/SchemaLocator.php
index fe1db9c30412c..09987ff1317c8 100644
--- a/lib/internal/Magento/Framework/App/Route/Config/SchemaLocator.php
+++ b/lib/internal/Magento/Framework/App/Route/Config/SchemaLocator.php
@@ -12,6 +12,10 @@ class SchemaLocator implements \Magento\Framework\Config\SchemaLocatorInterface
     /** @var \Magento\Framework\Config\Dom\UrnResolver */
     protected $urnResolver;
 
+    /**
+     * SchemaLocator constructor.
+     * @param \Magento\Framework\Config\Dom\UrnResolver $urnResolver
+     */
     public function __construct(\Magento\Framework\Config\Dom\UrnResolver $urnResolver)
     {
         $this->urnResolver = $urnResolver;
diff --git a/lib/internal/Magento/Framework/App/Test/Unit/Action/Stub/ActionStub.php b/lib/internal/Magento/Framework/App/Test/Unit/Action/Stub/ActionStub.php
index ee45842013f64..c157f818242ef 100644
--- a/lib/internal/Magento/Framework/App/Test/Unit/Action/Stub/ActionStub.php
+++ b/lib/internal/Magento/Framework/App/Test/Unit/Action/Stub/ActionStub.php
@@ -8,6 +8,9 @@
 
 class ActionStub extends \Magento\Framework\App\Action\Action
 {
+    /**
+     * @return \Magento\Framework\App\ResponseInterface|\Magento\Framework\Controller\ResultInterface|void
+     */
     public function execute()
     {
         // Empty method stub for test
diff --git a/lib/internal/Magento/Framework/App/Test/Unit/AreaTest.php b/lib/internal/Magento/Framework/App/Test/Unit/AreaTest.php
index 11ec9e53bf809..ddffcea7f5a37 100644
--- a/lib/internal/Magento/Framework/App/Test/Unit/AreaTest.php
+++ b/lib/internal/Magento/Framework/App/Test/Unit/AreaTest.php
@@ -276,6 +276,9 @@ public function testDetectDesignByRequest($value, $callNum, $callNum2)
         $this->object->detectDesign($requestMock);
     }
 
+    /**
+     * @return array
+     */
     public function detectDesignByRequestDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/App/Test/Unit/BootstrapTest.php b/lib/internal/Magento/Framework/App/Test/Unit/BootstrapTest.php
index 305311218cdae..474e009c30213 100644
--- a/lib/internal/Magento/Framework/App/Test/Unit/BootstrapTest.php
+++ b/lib/internal/Magento/Framework/App/Test/Unit/BootstrapTest.php
@@ -182,6 +182,9 @@ public function testIsDeveloperMode($modeFromEnvironment, $modeFromDeployment, $
         $this->assertEquals($isDeveloper, $bootstrap->isDeveloperMode());
     }
 
+    /**
+     * @return array
+     */
     public function testIsDeveloperModeDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/App/Test/Unit/Cache/Frontend/PoolTest.php b/lib/internal/Magento/Framework/App/Test/Unit/Cache/Frontend/PoolTest.php
index 71ec6b0f42a79..2d695295d336b 100644
--- a/lib/internal/Magento/Framework/App/Test/Unit/Cache/Frontend/PoolTest.php
+++ b/lib/internal/Magento/Framework/App/Test/Unit/Cache/Frontend/PoolTest.php
@@ -105,6 +105,9 @@ public function testInitializationParams(
         $model->current();
     }
 
+    /**
+     * @return array
+     */
     public function initializationParamsDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/App/Test/Unit/Cache/Type/ConfigTest.php b/lib/internal/Magento/Framework/App/Test/Unit/Cache/Type/ConfigTest.php
index 35ae5a4333f29..6c72dd989188a 100644
--- a/lib/internal/Magento/Framework/App/Test/Unit/Cache/Type/ConfigTest.php
+++ b/lib/internal/Magento/Framework/App/Test/Unit/Cache/Type/ConfigTest.php
@@ -157,6 +157,9 @@ public function testCleanModeMatchingAnyTag($fixtureResultOne, $fixtureResultTwo
         $this->assertEquals($expectedResult, $actualResult);
     }
 
+    /**
+     * @return array
+     */
     public function cleanModeMatchingAnyTagDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/App/Test/Unit/Cache/Type/FrontendPoolTest.php b/lib/internal/Magento/Framework/App/Test/Unit/Cache/Type/FrontendPoolTest.php
index 8a0b040a9011a..777d2d9fc4f8e 100644
--- a/lib/internal/Magento/Framework/App/Test/Unit/Cache/Type/FrontendPoolTest.php
+++ b/lib/internal/Magento/Framework/App/Test/Unit/Cache/Type/FrontendPoolTest.php
@@ -89,6 +89,9 @@ public function testGet($fixtureConfigData, $inputCacheType, $expectedFrontendId
         $this->assertSame($accessProxy, $this->_model->get($inputCacheType));
     }
 
+    /**
+     * @return array
+     */
     public function getDataProvider()
     {
         $configData1 = [
diff --git a/lib/internal/Magento/Framework/App/Test/Unit/CacheTest.php b/lib/internal/Magento/Framework/App/Test/Unit/CacheTest.php
index b3bb28f2c0ecc..cfab1ed347708 100644
--- a/lib/internal/Magento/Framework/App/Test/Unit/CacheTest.php
+++ b/lib/internal/Magento/Framework/App/Test/Unit/CacheTest.php
@@ -143,6 +143,9 @@ public function testSave($inputData, $inputId, $inputTags, $expectedData, $expec
         $this->_model->save($inputData, $inputId, $inputTags);
     }
 
+    /**
+     * @return array
+     */
     public function saveDataProvider()
     {
         $configTag = \Magento\Framework\App\Config::CACHE_TAG;
@@ -186,6 +189,9 @@ public function testRemove($result)
         $this->assertEquals($result, $this->_model->remove('test_id'));
     }
 
+    /**
+     * @return array
+     */
     public function successFailureDataProvider()
     {
         return ['success' => [true], 'failure' => [false]];
diff --git a/lib/internal/Magento/Framework/App/Test/Unit/Config/DataTest.php b/lib/internal/Magento/Framework/App/Test/Unit/Config/DataTest.php
index c4f124627fc77..51ffd92f34d02 100644
--- a/lib/internal/Magento/Framework/App/Test/Unit/Config/DataTest.php
+++ b/lib/internal/Magento/Framework/App/Test/Unit/Config/DataTest.php
@@ -41,6 +41,9 @@ public function testSetValue($path, $value)
         $this->assertEquals($value, $this->_model->getValue($path));
     }
 
+    /**
+     * @return array
+     */
     public function setValueDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/App/Test/Unit/Config/InitialTest.php b/lib/internal/Magento/Framework/App/Test/Unit/Config/InitialTest.php
index 2a2958734001c..fe2913a477b67 100644
--- a/lib/internal/Magento/Framework/App/Test/Unit/Config/InitialTest.php
+++ b/lib/internal/Magento/Framework/App/Test/Unit/Config/InitialTest.php
@@ -62,6 +62,9 @@ public function testGetData($scope, $expectedResult)
         $this->assertEquals($expectedResult, $this->_model->getData($scope));
     }
 
+    /**
+     * @return array
+     */
     public function getDataDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/App/Test/Unit/Config/ScopePoolTest.php b/lib/internal/Magento/Framework/App/Test/Unit/Config/ScopePoolTest.php
index 869950affd08d..c02dde3db5718 100644
--- a/lib/internal/Magento/Framework/App/Test/Unit/Config/ScopePoolTest.php
+++ b/lib/internal/Magento/Framework/App/Test/Unit/Config/ScopePoolTest.php
@@ -165,6 +165,9 @@ public function testGetScope($scopeType, $scope, array $data, $cachedData)
         );
     }
 
+    /**
+     * @return array
+     */
     public function getScopeDataProvider()
     {
         $baseScope = $this->getMockForAbstractClass('Magento\Framework\App\ScopeInterface');
diff --git a/lib/internal/Magento/Framework/App/Test/Unit/Config/ValueTest.php b/lib/internal/Magento/Framework/App/Test/Unit/Config/ValueTest.php
index 85187690d5431..9e8f50993da06 100644
--- a/lib/internal/Magento/Framework/App/Test/Unit/Config/ValueTest.php
+++ b/lib/internal/Magento/Framework/App/Test/Unit/Config/ValueTest.php
@@ -184,6 +184,9 @@ public function testAfterSave($callNumber, $oldValue)
         $this->assertInstanceOf(get_class($this->model), $this->model->afterSave());
     }
 
+    /**
+     * @return array
+     */
     public function afterSaveDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/App/Test/Unit/ConfigTest.php b/lib/internal/Magento/Framework/App/Test/Unit/ConfigTest.php
index 3353a4e2cc7b0..e5c7426e12513 100644
--- a/lib/internal/Magento/Framework/App/Test/Unit/ConfigTest.php
+++ b/lib/internal/Magento/Framework/App/Test/Unit/ConfigTest.php
@@ -77,6 +77,9 @@ public function testGetValue($scope, $scopeCode = null)
         $this->assertTrue($this->appConfig->getValue($path, $scope, $scopeCode ?: $this->scope));
     }
 
+    /**
+     * @return array
+     */
     public function getValueDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/App/Test/Unit/Console/ResponseTest.php b/lib/internal/Magento/Framework/App/Test/Unit/Console/ResponseTest.php
index eec51796542ed..9217bc7a09966 100644
--- a/lib/internal/Magento/Framework/App/Test/Unit/Console/ResponseTest.php
+++ b/lib/internal/Magento/Framework/App/Test/Unit/Console/ResponseTest.php
@@ -34,6 +34,9 @@ public function testSetCode($code, $expectedCode)
         $this->assertEquals($expectedCode, $result);
     }
 
+    /**
+     * @return array
+     */
     public static function setCodeProvider()
     {
         $largeCode = 256;
diff --git a/lib/internal/Magento/Framework/App/Test/Unit/DeploymentConfigTest.php b/lib/internal/Magento/Framework/App/Test/Unit/DeploymentConfigTest.php
index ef21f6aa7d716..448ab5d3b2f75 100644
--- a/lib/internal/Magento/Framework/App/Test/Unit/DeploymentConfigTest.php
+++ b/lib/internal/Magento/Framework/App/Test/Unit/DeploymentConfigTest.php
@@ -127,6 +127,9 @@ public function testKeyCollision(array $data)
         $object->get();
     }
 
+    /**
+     * @return array
+     */
     public function keyCollisionDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/App/Test/Unit/DocRootLocatorTest.php b/lib/internal/Magento/Framework/App/Test/Unit/DocRootLocatorTest.php
index eac0b47c064cd..d5b29c14eecec 100644
--- a/lib/internal/Magento/Framework/App/Test/Unit/DocRootLocatorTest.php
+++ b/lib/internal/Magento/Framework/App/Test/Unit/DocRootLocatorTest.php
@@ -29,6 +29,9 @@ public function testIsPub($path, $isExist, $result)
         $this->assertSame($result, $model->isPub());
     }
 
+    /**
+     * @return array
+     */
     public function isPubDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/App/Test/Unit/ErrorHandlerTest.php b/lib/internal/Magento/Framework/App/Test/Unit/ErrorHandlerTest.php
index 2e744bc8aec25..d810dbc002d47 100644
--- a/lib/internal/Magento/Framework/App/Test/Unit/ErrorHandlerTest.php
+++ b/lib/internal/Magento/Framework/App/Test/Unit/ErrorHandlerTest.php
@@ -32,6 +32,9 @@ public function testHandler($errorNo, $errorStr, $errorFile, $expectedResult)
         $this->assertEquals($expectedResult, $this->object->handler($errorNo, $errorStr, $errorFile, 11));
     }
 
+    /**
+     * @return array
+     */
     public function handlerProvider()
     {
         return [
@@ -59,6 +62,9 @@ public function testHandlerException($errorNo, $errorPhrase)
         $this->object->handler($errorNo, $errorStr, $errorFile, $errorLine);
     }
 
+    /**
+     * @return array
+     */
     public function handlerProviderException()
     {
         return [
diff --git a/lib/internal/Magento/Framework/App/Test/Unit/PageCache/IdentifierTest.php b/lib/internal/Magento/Framework/App/Test/Unit/PageCache/IdentifierTest.php
index 4f49299f2bac4..809506c2b6c9d 100644
--- a/lib/internal/Magento/Framework/App/Test/Unit/PageCache/IdentifierTest.php
+++ b/lib/internal/Magento/Framework/App/Test/Unit/PageCache/IdentifierTest.php
@@ -111,6 +111,9 @@ public function testVaryStringSource($cookieExists)
         $this->model->getValue();
     }
 
+    /**
+     * @return array
+     */
     public function trueFalseDataProvider()
     {
         return [[true], [false]];
diff --git a/lib/internal/Magento/Framework/App/Test/Unit/PageCache/KernelTest.php b/lib/internal/Magento/Framework/App/Test/Unit/PageCache/KernelTest.php
index a8656c1adfd64..0f17b9f366f46 100644
--- a/lib/internal/Magento/Framework/App/Test/Unit/PageCache/KernelTest.php
+++ b/lib/internal/Magento/Framework/App/Test/Unit/PageCache/KernelTest.php
@@ -141,6 +141,9 @@ public function testProcessSaveCache($httpCode, $at)
         $this->kernel->process($this->responseMock);
     }
 
+    /**
+     * @return array
+     */
     public function testProcessSaveCacheDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/App/Test/Unit/ProductMetadataTest.php b/lib/internal/Magento/Framework/App/Test/Unit/ProductMetadataTest.php
index 4033318db7f14..637ae12e99c58 100644
--- a/lib/internal/Magento/Framework/App/Test/Unit/ProductMetadataTest.php
+++ b/lib/internal/Magento/Framework/App/Test/Unit/ProductMetadataTest.php
@@ -45,6 +45,9 @@ public function testGetVersion($packageList, $expectedVersion)
         $this->assertEquals($expectedVersion, $productVersion);
     }
 
+    /**
+     * @return array
+     */
     public function testGetVersionGitInstallationDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/App/Test/Unit/Request/HttpTest.php b/lib/internal/Magento/Framework/App/Test/Unit/Request/HttpTest.php
index fda01bab489bf..184e9f9b383d1 100644
--- a/lib/internal/Magento/Framework/App/Test/Unit/Request/HttpTest.php
+++ b/lib/internal/Magento/Framework/App/Test/Unit/Request/HttpTest.php
@@ -267,6 +267,9 @@ public function testGetDistroBaseUrlPath($scriptName, $expected)
         $this->assertEquals($expected, Http::getDistroBaseUrlPath(['SCRIPT_NAME' => $scriptName]));
     }
 
+    /**
+     * @return array
+     */
     public function getDistroBaseUrlPathDataProvider()
     {
         return [
@@ -282,6 +285,9 @@ public function getDistroBaseUrlPathDataProvider()
     }
 
 
+    /**
+     * @return array
+     */
     public function serverVariablesProvider()
     {
         $returnValue = [];
@@ -385,6 +391,9 @@ public function testIsSafeMethodFalse($httpMethod)
         $this->assertEquals(false, $this->_model->IsSafeMethod());
     }
 
+    /**
+     * @return array
+     */
     public function httpSafeMethodProvider()
     {
         return [
@@ -395,6 +404,9 @@ public function httpSafeMethodProvider()
         ];
     }
 
+    /**
+     * @return array
+     */
     public function httpNotSafeMethodProvider()
     {
         return [
@@ -407,6 +419,9 @@ public function httpNotSafeMethodProvider()
         ];
     }
 
+    /**
+     * @return array
+     */
     public function isSecureDataProvider()
     {
         /**
@@ -449,6 +464,9 @@ public function testSetPathInfo($requestUri, $basePath, $expected)
         $this->assertEquals($expected, $this->_model->getPathInfo());
     }
 
+    /**
+     * @return array
+     */
     public function setPathInfoDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/App/Test/Unit/Router/ActionListTest.php b/lib/internal/Magento/Framework/App/Test/Unit/Router/ActionListTest.php
index eec3091eb5922..373ed7ac99216 100644
--- a/lib/internal/Magento/Framework/App/Test/Unit/Router/ActionListTest.php
+++ b/lib/internal/Magento/Framework/App/Test/Unit/Router/ActionListTest.php
@@ -107,6 +107,9 @@ public function testGet($module, $area, $namespace, $action, $data, $expected)
         $this->assertEquals($expected, $this->actionList->get($module, $area, $namespace, $action));
     }
 
+    /**
+     * @return array
+     */
     public function getDataProvider()
     {
         $mockClassName = 'Mock_Action_Class';
diff --git a/lib/internal/Magento/Framework/App/Test/Unit/ScopeResolverPoolTest.php b/lib/internal/Magento/Framework/App/Test/Unit/ScopeResolverPoolTest.php
index 34b949d6d848c..3e907c09534b6 100644
--- a/lib/internal/Magento/Framework/App/Test/Unit/ScopeResolverPoolTest.php
+++ b/lib/internal/Magento/Framework/App/Test/Unit/ScopeResolverPoolTest.php
@@ -47,6 +47,9 @@ public function testGetException($scope)
         $scopeResolver->get($scope);
     }
 
+    /**
+     * @return array
+     */
     public function testGetExceptionDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/App/Test/Unit/SetupInfoTest.php b/lib/internal/Magento/Framework/App/Test/Unit/SetupInfoTest.php
index f9429787359f3..d451563033edd 100644
--- a/lib/internal/Magento/Framework/App/Test/Unit/SetupInfoTest.php
+++ b/lib/internal/Magento/Framework/App/Test/Unit/SetupInfoTest.php
@@ -28,6 +28,9 @@ public function testConstructorExceptions($server, $expectedError)
         new SetupInfo($server);
     }
 
+    /**
+     * @return array
+     */
     public function constructorExceptionsDataProvider()
     {
         $docRootErr = 'DOCUMENT_ROOT variable is unavailable.';
diff --git a/lib/internal/Magento/Framework/App/Test/Unit/StateTest.php b/lib/internal/Magento/Framework/App/Test/Unit/StateTest.php
index 8c2d4092a09d6..32714441a5778 100644
--- a/lib/internal/Magento/Framework/App/Test/Unit/StateTest.php
+++ b/lib/internal/Magento/Framework/App/Test/Unit/StateTest.php
@@ -68,6 +68,10 @@ public function testEmulateAreaCode()
         $this->assertEquals($this->model->getAreaCode(), $areaCode);
     }
 
+    /**
+     * @return string
+     * @throws \Magento\Framework\Exception\LocalizedException
+     */
     public function emulateAreaCodeCallback()
     {
         return $this->model->getAreaCode();
diff --git a/lib/internal/Magento/Framework/App/Test/Unit/View/Deployment/VersionTest.php b/lib/internal/Magento/Framework/App/Test/Unit/View/Deployment/VersionTest.php
index 90e4edeedac77..ff6c5cae5350e 100644
--- a/lib/internal/Magento/Framework/App/Test/Unit/View/Deployment/VersionTest.php
+++ b/lib/internal/Magento/Framework/App/Test/Unit/View/Deployment/VersionTest.php
@@ -61,6 +61,9 @@ public function testGetValueFromStorage($appMode)
         $this->object->getValue(); // Ensure caching in memory
     }
 
+    /**
+     * @return array
+     */
     public function getValueFromStorageDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Cache/Config/SchemaLocator.php b/lib/internal/Magento/Framework/Cache/Config/SchemaLocator.php
index 6956c523f0325..34d8800a541d6 100644
--- a/lib/internal/Magento/Framework/Cache/Config/SchemaLocator.php
+++ b/lib/internal/Magento/Framework/Cache/Config/SchemaLocator.php
@@ -12,6 +12,10 @@ class SchemaLocator implements \Magento\Framework\Config\SchemaLocatorInterface
     /** @var \Magento\Framework\Config\Dom\UrnResolver */
     protected $urnResolver;
 
+    /**
+     * SchemaLocator constructor.
+     * @param \Magento\Framework\Config\Dom\UrnResolver $urnResolver
+     */
     public function __construct(\Magento\Framework\Config\Dom\UrnResolver $urnResolver)
     {
         $this->urnResolver = $urnResolver;
diff --git a/lib/internal/Magento/Framework/Cache/Test/Unit/Backend/Decorator/CompressionTest.php b/lib/internal/Magento/Framework/Cache/Test/Unit/Backend/Decorator/CompressionTest.php
index 89125c9240e2a..8262b80e70f4e 100644
--- a/lib/internal/Magento/Framework/Cache/Test/Unit/Backend/Decorator/CompressionTest.php
+++ b/lib/internal/Magento/Framework/Cache/Test/Unit/Backend/Decorator/CompressionTest.php
@@ -126,12 +126,21 @@ public function testSaveLoad()
         $this->assertEquals($this->_testString, $loadedValue);
     }
 
+    /**
+     * @param $data
+     * @param $cacheId
+     * @return bool
+     */
     public static function mockSave($data, $cacheId)
     {
         self::$_cacheStorage[$cacheId] = $data;
         return true;
     }
 
+    /**
+     * @param $cacheId
+     * @return bool|mixed
+     */
     public static function mockLoad($cacheId)
     {
         return array_key_exists($cacheId, self::$_cacheStorage) ? self::$_cacheStorage[$cacheId] : false;
diff --git a/lib/internal/Magento/Framework/Cache/Test/Unit/Backend/Decorator/DecoratorAbstractTest.php b/lib/internal/Magento/Framework/Cache/Test/Unit/Backend/Decorator/DecoratorAbstractTest.php
index d2bcbcce4b0a9..802a96089b880 100644
--- a/lib/internal/Magento/Framework/Cache/Test/Unit/Backend/Decorator/DecoratorAbstractTest.php
+++ b/lib/internal/Magento/Framework/Cache/Test/Unit/Backend/Decorator/DecoratorAbstractTest.php
@@ -63,6 +63,9 @@ public function testConstructorException($options)
         $this->getMockForAbstractClass('Magento\Framework\Cache\Backend\Decorator\AbstractDecorator', [$options]);
     }
 
+    /**
+     * @return array
+     */
     public function constructorExceptionDataProvider()
     {
         return [
@@ -86,6 +89,9 @@ public function testAllMethods($methodName)
         call_user_func([$decorator, $methodName], null, null);
     }
 
+    /**
+     * @return array
+     */
     public function allMethodsDataProvider()
     {
         $return = [];
diff --git a/lib/internal/Magento/Framework/Cache/Test/Unit/Backend/MongoDbTest.php b/lib/internal/Magento/Framework/Cache/Test/Unit/Backend/MongoDbTest.php
index 7762951c736c1..dcda3ad898813 100644
--- a/lib/internal/Magento/Framework/Cache/Test/Unit/Backend/MongoDbTest.php
+++ b/lib/internal/Magento/Framework/Cache/Test/Unit/Backend/MongoDbTest.php
@@ -55,6 +55,9 @@ public function testGetIds(array $ids, array $expected)
         $this->assertEquals($expected, $actual);
     }
 
+    /**
+     * @return array
+     */
     public function getIdsDataProvider()
     {
         return [
@@ -74,6 +77,9 @@ public function testGetTags(array $tags)
         $this->assertEquals($tags, $actual);
     }
 
+    /**
+     * @return array
+     */
     public function getTagsDataProvider()
     {
         return ['no tags' => [[]], 'multiple tags' => [['tag1', 'tag2']]];
@@ -102,6 +108,9 @@ public function testGetIdsMatchingTags($method, $tags, $expectedInput)
         $this->assertEquals($expectedIds, $actualIds);
     }
 
+    /**
+     * @return array
+     */
     public function getIdsMatchingTagsDataProvider()
     {
         return [
@@ -180,6 +189,9 @@ public function testGetMetadatas($cacheId, $expectedInput, $mongoOutput, $expect
         $this->assertEquals($expected, $actual);
     }
 
+    /**
+     * @return array
+     */
     public function getMetadatasDataProvider()
     {
         $time = time();
@@ -247,6 +259,9 @@ public function testLoad($doNotTestValidity)
         $this->assertSame($expected, $actual);
     }
 
+    /**
+     * @return array
+     */
     public function loadDataProvider()
     {
         return ['test validity' => [false], 'do not test validity' => [true]];
@@ -332,6 +347,9 @@ public function testClean($mode, $tags, $expectedQuery)
         $this->_model->clean($mode, $tags);
     }
 
+    /**
+     * @return array
+     */
     public function cleanDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Cache/Test/Unit/CoreTest.php b/lib/internal/Magento/Framework/Cache/Test/Unit/CoreTest.php
index cfdec46e2a44a..fde25e0d3cd2a 100644
--- a/lib/internal/Magento/Framework/Cache/Test/Unit/CoreTest.php
+++ b/lib/internal/Magento/Framework/Cache/Test/Unit/CoreTest.php
@@ -60,6 +60,9 @@ public function testSetBackendException($decorators)
         $core->setBackend($this->_mockBackend);
     }
 
+    /**
+     * @return array
+     */
     public function setBackendExceptionProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Cache/Test/Unit/Frontend/Adapter/ZendTest.php b/lib/internal/Magento/Framework/Cache/Test/Unit/Frontend/Adapter/ZendTest.php
index ec3bb352a37ac..1eeafab8a3f2b 100644
--- a/lib/internal/Magento/Framework/Cache/Test/Unit/Frontend/Adapter/ZendTest.php
+++ b/lib/internal/Magento/Framework/Cache/Test/Unit/Frontend/Adapter/ZendTest.php
@@ -85,6 +85,9 @@ public function testCleanException($cleaningMode, $expectedErrorMessage)
         $object->clean($cleaningMode);
     }
 
+    /**
+     * @return array
+     */
     public function cleanExceptionDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Cache/Test/Unit/Frontend/Decorator/TagScopeTest.php b/lib/internal/Magento/Framework/Cache/Test/Unit/Frontend/Decorator/TagScopeTest.php
index dc402a6c3051e..504a19ad2d833 100644
--- a/lib/internal/Magento/Framework/Cache/Test/Unit/Frontend/Decorator/TagScopeTest.php
+++ b/lib/internal/Magento/Framework/Cache/Test/Unit/Frontend/Decorator/TagScopeTest.php
@@ -128,6 +128,9 @@ public function testCleanModeMatchingAnyTag($fixtureResultOne, $fixtureResultTwo
         $this->assertEquals($expectedResult, $actualResult);
     }
 
+    /**
+     * @return array
+     */
     public function cleanModeMatchingAnyTagDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Code/Test/Unit/Generator/DefinedClassesTest.php b/lib/internal/Magento/Framework/Code/Test/Unit/Generator/DefinedClassesTest.php
index 03bee5485e5f2..81a7a25b519a8 100644
--- a/lib/internal/Magento/Framework/Code/Test/Unit/Generator/DefinedClassesTest.php
+++ b/lib/internal/Magento/Framework/Code/Test/Unit/Generator/DefinedClassesTest.php
@@ -8,6 +8,10 @@
 namespace Magento\Framework\Code\Generator {
     use Magento\Framework\Code\Test\Unit\Generator\DefinedClassesTest;
 
+    /**
+     * @param $className
+     * @return bool
+     */
     function class_exists($className)
     {
         return DefinedClassesTest::$definedClassesTestActive
diff --git a/lib/internal/Magento/Framework/Code/Test/Unit/Generator/InterfaceGeneratorTest.php b/lib/internal/Magento/Framework/Code/Test/Unit/Generator/InterfaceGeneratorTest.php
index dd3355a82e777..317b850dc8f5d 100644
--- a/lib/internal/Magento/Framework/Code/Test/Unit/Generator/InterfaceGeneratorTest.php
+++ b/lib/internal/Magento/Framework/Code/Test/Unit/Generator/InterfaceGeneratorTest.php
@@ -113,6 +113,9 @@ public function testGeneratePredefinedContentNotSet()
         $this->assertEquals($expectedContent, $generatedContent, "Generated content is invalid.");
     }
 
+    /**
+     * @return array
+     */
     public function generateDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Code/Test/Unit/Generator/IoTest.php b/lib/internal/Magento/Framework/Code/Test/Unit/Generator/IoTest.php
index 308b368adc2d1..24f8375f47028 100644
--- a/lib/internal/Magento/Framework/Code/Test/Unit/Generator/IoTest.php
+++ b/lib/internal/Magento/Framework/Code/Test/Unit/Generator/IoTest.php
@@ -111,6 +111,9 @@ public function testWriteResultFileAlreadyExists($resultFileName, $fileExists, $
         $this->assertSame($success, $this->_object->writeResultFile($resultFileName, self::FILE_CONTENT));
     }
 
+    /**
+     * @return array
+     */
     public function testWriteResultFileAlreadyExistsDataProvider()
     {
         return [
@@ -202,6 +205,9 @@ public function testFileExists($fileName, $exists)
         $this->assertSame($exists, $this->_object->fileExists($fileName));
     }
 
+    /**
+     * @return array
+     */
     public function fileExistsDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Code/Test/Unit/GeneratorTest.php b/lib/internal/Magento/Framework/Code/Test/Unit/GeneratorTest.php
index f388d03b03cb6..be198356209c0 100644
--- a/lib/internal/Magento/Framework/Code/Test/Unit/GeneratorTest.php
+++ b/lib/internal/Magento/Framework/Code/Test/Unit/GeneratorTest.php
@@ -131,6 +131,9 @@ public function testGenerateClassWithExistName($fileExists)
         );
     }
 
+    /**
+     * @return array
+     */
     public function trueFalseDataProvider()
     {
         return [[true], [false]];
diff --git a/lib/internal/Magento/Framework/Code/Test/Unit/NameBuilderTest.php b/lib/internal/Magento/Framework/Code/Test/Unit/NameBuilderTest.php
index cc6189919532d..896ab1a7163fa 100644
--- a/lib/internal/Magento/Framework/Code/Test/Unit/NameBuilderTest.php
+++ b/lib/internal/Magento/Framework/Code/Test/Unit/NameBuilderTest.php
@@ -29,6 +29,9 @@ public function testBuildClassName($parts, $expected)
         $this->assertEquals($expected, $this->nameBuilder->buildClassName($parts));
     }
 
+    /**
+     * @return array
+     */
     public function buildClassNameDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Code/Test/Unit/Reader/ArgumentsReaderTest.php b/lib/internal/Magento/Framework/Code/Test/Unit/Reader/ArgumentsReaderTest.php
index 4da61f2b24a5f..43a32b7cb0f81 100644
--- a/lib/internal/Magento/Framework/Code/Test/Unit/Reader/ArgumentsReaderTest.php
+++ b/lib/internal/Magento/Framework/Code/Test/Unit/Reader/ArgumentsReaderTest.php
@@ -277,6 +277,9 @@ public function testIsCompatibleType($requiredType, $actualType, $expectedResult
         $this->assertEquals($expectedResult, $actualResult);
     }
 
+    /**
+     * @return array
+     */
     public function testIsCompatibleTypeDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Code/Test/Unit/Validator/TypeDuplicationTest.php b/lib/internal/Magento/Framework/Code/Test/Unit/Validator/TypeDuplicationTest.php
index ab01ff5f7a49d..2ed13c5927a13 100644
--- a/lib/internal/Magento/Framework/Code/Test/Unit/Validator/TypeDuplicationTest.php
+++ b/lib/internal/Magento/Framework/Code/Test/Unit/Validator/TypeDuplicationTest.php
@@ -34,6 +34,9 @@ public function testValidClasses($className)
         $this->assertTrue($this->_validator->validate($className));
     }
 
+    /**
+     * @return array
+     */
     public function validClassesDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Code/Test/Unit/Validator/_files/ClassesForArgumentSequence.php b/lib/internal/Magento/Framework/Code/Test/Unit/Validator/_files/ClassesForArgumentSequence.php
index e46f03c3de970..c10447371a60c 100644
--- a/lib/internal/Magento/Framework/Code/Test/Unit/Validator/_files/ClassesForArgumentSequence.php
+++ b/lib/internal/Magento/Framework/Code/Test/Unit/Validator/_files/ClassesForArgumentSequence.php
@@ -38,6 +38,15 @@ class ParentClass
 
     protected $parentOptionalScalar;
 
+    /**
+     * ParentClass constructor.
+     * @param ContextObject $contextObject
+     * @param ParentRequiredObject $parentRequiredObject
+     * @param array $parentRequiredScalar
+     * @param ParentOptionalObject|null $parentOptionalObject
+     * @param array $data
+     * @param array $parentOptionalScalar
+     */
     public function __construct(
         ContextObject $contextObject,
         ParentRequiredObject $parentRequiredObject,
diff --git a/lib/internal/Magento/Framework/Code/Test/Unit/Validator/_files/ClassesForConstructorIntegrity.php b/lib/internal/Magento/Framework/Code/Test/Unit/Validator/_files/ClassesForConstructorIntegrity.php
index 7d472e56ea297..3ceb7e4cad70e 100644
--- a/lib/internal/Magento/Framework/Code/Test/Unit/Validator/_files/ClassesForConstructorIntegrity.php
+++ b/lib/internal/Magento/Framework/Code/Test/Unit/Validator/_files/ClassesForConstructorIntegrity.php
@@ -55,6 +55,14 @@ class Context implements \Magento\Framework\ObjectManager\ContextInterface
      */
     protected $_implOfBInterface;
 
+    /**
+     * Context constructor.
+     * @param ClassA $exA
+     * @param ClassB $exB
+     * @param ClassC $exC
+     * @param InterfaceA $interfaceA
+     * @param ImplementationOfInterfaceB $implOfBInterface
+     */
     public function __construct(
         \ClassA $exA,
         \ClassB $exB,
diff --git a/lib/internal/Magento/Framework/Code/Test/Unit/_files/app/code/Magento/SomeModule/Model/Five/Test.php b/lib/internal/Magento/Framework/Code/Test/Unit/_files/app/code/Magento/SomeModule/Model/Five/Test.php
index 8a9d9866126bf..9e38bf2be7d49 100644
--- a/lib/internal/Magento/Framework/Code/Test/Unit/_files/app/code/Magento/SomeModule/Model/Five/Test.php
+++ b/lib/internal/Magento/Framework/Code/Test/Unit/_files/app/code/Magento/SomeModule/Model/Five/Test.php
@@ -14,6 +14,10 @@ class Test extends \Magento\SomeModule\Model\Three\Test
      */
     protected $_proxy;
 
+    /**
+     * Test constructor.
+     * @param \Magento\SomeModule\Model\Proxy $proxy
+     */
     public function __construct(\Magento\SomeModule\Model\Proxy $proxy)
     {
         parent::__construct($proxy);
diff --git a/lib/internal/Magento/Framework/Code/Test/Unit/_files/app/code/Magento/SomeModule/Model/Four/Test.php b/lib/internal/Magento/Framework/Code/Test/Unit/_files/app/code/Magento/SomeModule/Model/Four/Test.php
index 4701e76f08c59..7368ff1e7e767 100644
--- a/lib/internal/Magento/Framework/Code/Test/Unit/_files/app/code/Magento/SomeModule/Model/Four/Test.php
+++ b/lib/internal/Magento/Framework/Code/Test/Unit/_files/app/code/Magento/SomeModule/Model/Four/Test.php
@@ -15,6 +15,11 @@ class Test extends \Magento\SomeModule\Model\One\Test
      */
     protected $_factory;
 
+    /**
+     * Test constructor.
+     * @param \Magento\SomeModule\Model\Proxy $proxy
+     * @param \Magento\SomeModule\Model\ElementFactory $factory
+     */
     public function __construct(
         \Magento\SomeModule\Model\Proxy $proxy,
         \Magento\SomeModule\Model\ElementFactory $factory
diff --git a/lib/internal/Magento/Framework/Code/Test/Unit/_files/app/code/Magento/SomeModule/Model/One/Test.php b/lib/internal/Magento/Framework/Code/Test/Unit/_files/app/code/Magento/SomeModule/Model/One/Test.php
index 90f5d40ab726d..9bb858cc16751 100644
--- a/lib/internal/Magento/Framework/Code/Test/Unit/_files/app/code/Magento/SomeModule/Model/One/Test.php
+++ b/lib/internal/Magento/Framework/Code/Test/Unit/_files/app/code/Magento/SomeModule/Model/One/Test.php
@@ -13,6 +13,10 @@ class Test
      */
     protected $_proxy;
 
+    /**
+     * Test constructor.
+     * @param \Magento\SomeModule\Model\Proxy $proxy
+     */
     public function __construct(\Magento\SomeModule\Model\Proxy $proxy)
     {
         $this->_proxy = $proxy;
diff --git a/lib/internal/Magento/Framework/Code/Test/Unit/_files/app/code/Magento/SomeModule/Model/SevenInterface.php b/lib/internal/Magento/Framework/Code/Test/Unit/_files/app/code/Magento/SomeModule/Model/SevenInterface.php
index e4249eda6878c..2800ecd044ad1 100644
--- a/lib/internal/Magento/Framework/Code/Test/Unit/_files/app/code/Magento/SomeModule/Model/SevenInterface.php
+++ b/lib/internal/Magento/Framework/Code/Test/Unit/_files/app/code/Magento/SomeModule/Model/SevenInterface.php
@@ -42,6 +42,7 @@ public static function testMethod1(array &$data = array());
      */
     public function testMethod2($data = 'test_default', $flag = true);
 
+    
     public function testMethod3();
 
 
diff --git a/lib/internal/Magento/Framework/Code/Test/Unit/_files/app/code/Magento/SomeModule/Model/Six/Test.php b/lib/internal/Magento/Framework/Code/Test/Unit/_files/app/code/Magento/SomeModule/Model/Six/Test.php
index 0c736710f5c4e..6fe98d08547b6 100644
--- a/lib/internal/Magento/Framework/Code/Test/Unit/_files/app/code/Magento/SomeModule/Model/Six/Test.php
+++ b/lib/internal/Magento/Framework/Code/Test/Unit/_files/app/code/Magento/SomeModule/Model/Six/Test.php
@@ -15,6 +15,11 @@ class Test extends \Magento\SomeModule\Model\One\Test
      */
     protected $_factory;
 
+    /**
+     * Test constructor.
+     * @param \Magento\SomeModule\Model\Proxy $proxy
+     * @param \Magento\SomeModule\Model\ElementFactory $factory
+     */
     public function __construct(
         \Magento\SomeModule\Model\Proxy $proxy,
         \Magento\SomeModule\Model\ElementFactory $factory
diff --git a/lib/internal/Magento/Framework/Code/Test/Unit/_files/app/code/Magento/SomeModule/Model/Three/Test.php b/lib/internal/Magento/Framework/Code/Test/Unit/_files/app/code/Magento/SomeModule/Model/Three/Test.php
index d080034ef978e..90086f1b1d50e 100644
--- a/lib/internal/Magento/Framework/Code/Test/Unit/_files/app/code/Magento/SomeModule/Model/Three/Test.php
+++ b/lib/internal/Magento/Framework/Code/Test/Unit/_files/app/code/Magento/SomeModule/Model/Three/Test.php
@@ -20,6 +20,11 @@ class Test extends \Magento\SomeModule\Model\Two\Test
      */
     protected $_proxy;
 
+    /**
+     * Test constructor.
+     * @param \Magento\SomeModule\Model\Proxy $proxy
+     * @param \Magento\SomeModule\Model\ElementFactory $factory
+     */
     public function __construct(
         \Magento\SomeModule\Model\Proxy $proxy,
         \Magento\SomeModule\Model\ElementFactory $factory
diff --git a/lib/internal/Magento/Framework/Code/Test/Unit/_files/app/code/Magento/SomeModule/Model/Two/Test.php b/lib/internal/Magento/Framework/Code/Test/Unit/_files/app/code/Magento/SomeModule/Model/Two/Test.php
index dee0b216b7641..f4ba4ab8e6a3e 100644
--- a/lib/internal/Magento/Framework/Code/Test/Unit/_files/app/code/Magento/SomeModule/Model/Two/Test.php
+++ b/lib/internal/Magento/Framework/Code/Test/Unit/_files/app/code/Magento/SomeModule/Model/Two/Test.php
@@ -14,6 +14,11 @@ class Test extends \Magento\SomeModule\Model\One\Test
      */
     protected $_proxy;
 
+    /**
+     * Test constructor.
+     * @param \Magento\SomeModule\Model\Proxy $proxy
+     * @param array $data
+     */
     public function __construct(\Magento\SomeModule\Model\Proxy $proxy, $data = [])
     {
         $this->_proxy = $proxy;
diff --git a/lib/internal/Magento/Framework/Composer/Test/Unit/ComposerInformationTest.php b/lib/internal/Magento/Framework/Composer/Test/Unit/ComposerInformationTest.php
index 799862f8eddf7..bae3df40a7f7e 100644
--- a/lib/internal/Magento/Framework/Composer/Test/Unit/ComposerInformationTest.php
+++ b/lib/internal/Magento/Framework/Composer/Test/Unit/ComposerInformationTest.php
@@ -92,6 +92,9 @@ public function testIsMagentoRoot($packageName, $expected)
         $this->assertEquals($expected, $this->composerInformation->isMagentoRoot());
     }
 
+    /**
+     * @return array
+     */
     public function isMagentoRootDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Config/Test/Unit/Converter/DomTest.php b/lib/internal/Magento/Framework/Config/Test/Unit/Converter/DomTest.php
index c3c12f0cab51e..a3887c1df835d 100644
--- a/lib/internal/Magento/Framework/Config/Test/Unit/Converter/DomTest.php
+++ b/lib/internal/Magento/Framework/Config/Test/Unit/Converter/DomTest.php
@@ -24,6 +24,9 @@ public function testConvert($sourceFile, $resultFile)
         $this->assertEquals($resultFile, $converterDom->convert($dom));
     }
 
+    /**
+     * @return array
+     */
     public function convertDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Config/Test/Unit/Data/ConfigDataTest.php b/lib/internal/Magento/Framework/Config/Test/Unit/Data/ConfigDataTest.php
index 256c2232a1dda..3c63342470db4 100644
--- a/lib/internal/Magento/Framework/Config/Test/Unit/Data/ConfigDataTest.php
+++ b/lib/internal/Magento/Framework/Config/Test/Unit/Data/ConfigDataTest.php
@@ -46,6 +46,9 @@ public function testSetWrongKey($key, $expectedException)
         $configData->set($key, 'value');
     }
 
+    /**
+     * @return array
+     */
     public function setWrongKeyDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Config/Test/Unit/Data/ScopedTest.php b/lib/internal/Magento/Framework/Config/Test/Unit/Data/ScopedTest.php
index be678b5a6b77e..8866f5c9d7429 100644
--- a/lib/internal/Magento/Framework/Config/Test/Unit/Data/ScopedTest.php
+++ b/lib/internal/Magento/Framework/Config/Test/Unit/Data/ScopedTest.php
@@ -60,6 +60,9 @@ public function testgetConfigByPath($path, $expectedValue, $default)
         $this->assertEquals($expectedValue, $this->_model->get($path, $default));
     }
 
+    /**
+     * @return array
+     */
     public function getConfigByPathDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Config/Test/Unit/Dom/NodePathMatcherTest.php b/lib/internal/Magento/Framework/Config/Test/Unit/Dom/NodePathMatcherTest.php
index 86b63d0831cde..cb638ba9a9f2d 100644
--- a/lib/internal/Magento/Framework/Config/Test/Unit/Dom/NodePathMatcherTest.php
+++ b/lib/internal/Magento/Framework/Config/Test/Unit/Dom/NodePathMatcherTest.php
@@ -32,6 +32,9 @@ public function testMatch($pathPattern, $xpathSubject, $expectedResult)
         $this->assertSame($expectedResult, $actualResult);
     }
 
+    /**
+     * @return array
+     */
     public function getNodeInfoDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Config/Test/Unit/GenericSchemaLocatorTest.php b/lib/internal/Magento/Framework/Config/Test/Unit/GenericSchemaLocatorTest.php
index b81b96424bee2..51975fce743b9 100644
--- a/lib/internal/Magento/Framework/Config/Test/Unit/GenericSchemaLocatorTest.php
+++ b/lib/internal/Magento/Framework/Config/Test/Unit/GenericSchemaLocatorTest.php
@@ -30,6 +30,13 @@ class GenericSchemaLocatorTest extends \PHPUnit_Framework_TestCase
      */
     private $moduleReaderMock;
 
+    /**
+     * @param ModuleDirReader $reader
+     * @param $moduleName
+     * @param $mergeSchema
+     * @param $perFileSchema
+     * @return GenericSchemaLocator
+     */
     private function createNewSchemaLocatorInstance(ModuleDirReader $reader, $moduleName, $mergeSchema, $perFileSchema)
     {
         return new GenericSchemaLocator($reader, $moduleName, $mergeSchema, $perFileSchema);
diff --git a/lib/internal/Magento/Framework/Convert/Test/Unit/XmlTest.php b/lib/internal/Magento/Framework/Convert/Test/Unit/XmlTest.php
index 66442cd88b485..22ccf436917b4 100644
--- a/lib/internal/Magento/Framework/Convert/Test/Unit/XmlTest.php
+++ b/lib/internal/Magento/Framework/Convert/Test/Unit/XmlTest.php
@@ -31,6 +31,9 @@ public function testXmlToAssoc()
         );
     }
 
+    /**
+     * @return string
+     */
     protected function getXml()
     {
         return <<<XML
diff --git a/lib/internal/Magento/Framework/DB/Test/Unit/Adapter/Pdo/MysqlTest.php b/lib/internal/Magento/Framework/DB/Test/Unit/Adapter/Pdo/MysqlTest.php
index 8f4c469baa341..a1608bb613380 100644
--- a/lib/internal/Magento/Framework/DB/Test/Unit/Adapter/Pdo/MysqlTest.php
+++ b/lib/internal/Magento/Framework/DB/Test/Unit/Adapter/Pdo/MysqlTest.php
@@ -512,6 +512,9 @@ public function testGetIndexName($name, $fields, $indexType, $expectedName)
         );
     }
 
+    /**
+     * @return array
+     */
     public function getIndexNameDataProvider()
     {
         // 65 characters long - will be compressed
diff --git a/lib/internal/Magento/Framework/DB/Test/Unit/ExpressionConverterTest.php b/lib/internal/Magento/Framework/DB/Test/Unit/ExpressionConverterTest.php
index bca583b2eaa2c..4c196b405c69d 100644
--- a/lib/internal/Magento/Framework/DB/Test/Unit/ExpressionConverterTest.php
+++ b/lib/internal/Magento/Framework/DB/Test/Unit/ExpressionConverterTest.php
@@ -23,6 +23,9 @@ public function testShortenEntityName($in, $prefix, $expectedOut)
         );
     }
 
+    /**
+     * @return array
+     */
     public function shortenEntityNameDataProvider()
     {
         $length64 = '________________________________________________________________';
diff --git a/lib/internal/Magento/Framework/DB/Test/Unit/Helper/Mysql/FulltextTest.php b/lib/internal/Magento/Framework/DB/Test/Unit/Helper/Mysql/FulltextTest.php
index 6f51be6136413..0dcaad27d0e40 100644
--- a/lib/internal/Magento/Framework/DB/Test/Unit/Helper/Mysql/FulltextTest.php
+++ b/lib/internal/Magento/Framework/DB/Test/Unit/Helper/Mysql/FulltextTest.php
@@ -64,6 +64,9 @@ public function testMatch($isCondition)
         $this->assertEquals($select, $result);
     }
 
+    /**
+     * @return array
+     */
     public function matchProvider()
     {
         return [[true], [false]];
diff --git a/lib/internal/Magento/Framework/DB/Test/Unit/Select/ColumnsRendererTest.php b/lib/internal/Magento/Framework/DB/Test/Unit/Select/ColumnsRendererTest.php
index ad7883283b916..8a3e13aa71510 100644
--- a/lib/internal/Magento/Framework/DB/Test/Unit/Select/ColumnsRendererTest.php
+++ b/lib/internal/Magento/Framework/DB/Test/Unit/Select/ColumnsRendererTest.php
@@ -77,6 +77,9 @@ public function testRender($columns, $sql, $expectedResult)
         $this->assertEquals($expectedResult, $this->model->render($this->selectMock, $sql));
     }
 
+    /**
+     * @return array
+     */
     public function renderDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Data/Test/Unit/Argument/Interpreter/ArrayTypeTest.php b/lib/internal/Magento/Framework/Data/Test/Unit/Argument/Interpreter/ArrayTypeTest.php
index 02ce7494fba35..0f82b17b1ba5c 100644
--- a/lib/internal/Magento/Framework/Data/Test/Unit/Argument/Interpreter/ArrayTypeTest.php
+++ b/lib/internal/Magento/Framework/Data/Test/Unit/Argument/Interpreter/ArrayTypeTest.php
@@ -38,6 +38,9 @@ public function testEvaluateException($inputData)
         $this->_model->evaluate($inputData);
     }
 
+    /**
+     * @return array
+     */
     public function evaluateExceptionDataProvider()
     {
         return [
@@ -62,6 +65,9 @@ public function testEvaluate(array $input, array $expected)
         $this->assertSame($expected, $actual);
     }
 
+    /**
+     * @return array
+     */
     public function evaluateDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Data/Test/Unit/Argument/Interpreter/CompositeTest.php b/lib/internal/Magento/Framework/Data/Test/Unit/Argument/Interpreter/CompositeTest.php
index ce6f761ea0a58..ef72ff1b97608 100644
--- a/lib/internal/Magento/Framework/Data/Test/Unit/Argument/Interpreter/CompositeTest.php
+++ b/lib/internal/Magento/Framework/Data/Test/Unit/Argument/Interpreter/CompositeTest.php
@@ -59,6 +59,9 @@ public function testEvaluateWrongDiscriminator($input, $expectedExceptionMessage
         $this->_model->evaluate($input);
     }
 
+    /**
+     * @return array
+     */
     public function evaluateWrongDiscriminatorDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Data/Test/Unit/Argument/Interpreter/NumberTest.php b/lib/internal/Magento/Framework/Data/Test/Unit/Argument/Interpreter/NumberTest.php
index 6e9fe804508dc..d2138c2a17248 100644
--- a/lib/internal/Magento/Framework/Data/Test/Unit/Argument/Interpreter/NumberTest.php
+++ b/lib/internal/Magento/Framework/Data/Test/Unit/Argument/Interpreter/NumberTest.php
@@ -30,6 +30,9 @@ public function testEvaluateException($input)
         $this->_model->evaluate($input);
     }
 
+    /**
+     * @return array
+     */
     public function evaluateExceptionDataProvider()
     {
         return ['no value' => [[]], 'non-numeric value' => [['value' => 'non-numeric']]];
@@ -47,6 +50,9 @@ public function testEvaluate($input, $expected)
         $this->assertSame($expected, $actual);
     }
 
+    /**
+     * @return array
+     */
     public function evaluateDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Data/Test/Unit/Collection/DbTest.php b/lib/internal/Magento/Framework/Data/Test/Unit/Collection/DbTest.php
index 6f14e7c838bdf..ad588c9f9b0fa 100644
--- a/lib/internal/Magento/Framework/Data/Test/Unit/Collection/DbTest.php
+++ b/lib/internal/Magento/Framework/Data/Test/Unit/Collection/DbTest.php
@@ -327,6 +327,9 @@ public function testPrintLogQueryPrinting($printQuery, $printFlag, $query, $expe
         $this->collection->printLogQuery($printQuery, false, $query);
     }
 
+    /**
+     * @return array
+     */
     public function printLogQueryPrintingDataProvider()
     {
         return [
@@ -350,6 +353,9 @@ public function testPrintLogQueryLogging($logQuery, $logFlag, $expectedCalls)
         $this->collection->printLogQuery(false, $logQuery, 'some_query');
     }
 
+    /**
+     * @return array
+     */
     public function printLogQueryLoggingDataProvider()
     {
         return [
@@ -541,6 +547,9 @@ public function testDistinct($flag, $expectedFlag)
         $this->collection->distinct($flag);
     }
 
+    /**
+     * @return array
+     */
     public function distinctDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Data/Test/Unit/Form/Element/DateTest.php b/lib/internal/Magento/Framework/Data/Test/Unit/Form/Element/DateTest.php
index c751e59f0ba8b..cab88f04749c3 100644
--- a/lib/internal/Magento/Framework/Data/Test/Unit/Form/Element/DateTest.php
+++ b/lib/internal/Magento/Framework/Data/Test/Unit/Form/Element/DateTest.php
@@ -92,6 +92,9 @@ public function testGetElementHtmlDateFormat($fieldName)
         $this->model->getElementHtml();
     }
 
+    /**
+     * @return array
+     */
     public function providerGetElementHtmlDateFormat()
     {
         return [
@@ -100,6 +103,10 @@ public function providerGetElementHtmlDateFormat()
         ];
     }
 
+    /**
+     * @param $exactly
+     * @return mixed
+     */
     protected function getFormMock($exactly)
     {
         $functions = ['getFieldNameSuffix', 'getHtmlIdPrefix', 'getHtmlIdSuffix'];
diff --git a/lib/internal/Magento/Framework/Data/Test/Unit/Form/FormKey/ValidatorTest.php b/lib/internal/Magento/Framework/Data/Test/Unit/Form/FormKey/ValidatorTest.php
index 9fe0cf548a6e9..7f56e73a2f400 100644
--- a/lib/internal/Magento/Framework/Data/Test/Unit/Form/FormKey/ValidatorTest.php
+++ b/lib/internal/Magento/Framework/Data/Test/Unit/Form/FormKey/ValidatorTest.php
@@ -56,6 +56,9 @@ public function testValidate($formKey, $expected)
         $this->assertEquals($expected, $this->_model->validate($this->_requestMock));
     }
 
+    /**
+     * @return array
+     */
     public function validateDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Encryption/Test/Unit/CryptTest.php b/lib/internal/Magento/Framework/Encryption/Test/Unit/CryptTest.php
index b2e7e25043d82..6a3d55a6be705 100644
--- a/lib/internal/Magento/Framework/Encryption/Test/Unit/CryptTest.php
+++ b/lib/internal/Magento/Framework/Encryption/Test/Unit/CryptTest.php
@@ -30,6 +30,10 @@ protected function setUp()
         $this->_key = substr(__CLASS__, -32, 32);
     }
 
+    /**
+     * @param $length
+     * @return bool|string
+     */
     protected function _getRandomString($length)
     {
         $result = '';
@@ -64,18 +68,31 @@ protected function _requireCipherInfo()
         }
     }
 
+    /**
+     * @param $cipherName
+     * @param $modeName
+     * @return mixed
+     */
     protected function _getKeySize($cipherName, $modeName)
     {
         $this->_requireCipherInfo();
         return self::$_cipherInfo[$cipherName][$modeName]['key_size'];
     }
 
+    /**
+     * @param $cipherName
+     * @param $modeName
+     * @return mixed
+     */
     protected function _getInitVectorSize($cipherName, $modeName)
     {
         $this->_requireCipherInfo();
         return self::$_cipherInfo[$cipherName][$modeName]['iv_size'];
     }
 
+    /**
+     * @return array
+     */
     public function getCipherModeCombinations()
     {
         $result = [];
@@ -102,6 +119,9 @@ public function testConstructor($cipher, $mode)
         $this->assertEquals($initVector, $crypt->getInitVector());
     }
 
+    /**
+     * @return array
+     */
     public function getConstructorExceptionData()
     {
         $result = [];
@@ -137,6 +157,9 @@ public function testConstructorDefaults()
         $this->assertEquals($cryptExpected->getInitVector(), $cryptActual->getInitVector());
     }
 
+    /**
+     * @return mixed
+     */
     public function getCryptData()
     {
         $fixturesFilename = __DIR__ . '/Crypt/_files/_crypt_fixtures.php';
diff --git a/lib/internal/Magento/Framework/Encryption/Test/Unit/EncryptorTest.php b/lib/internal/Magento/Framework/Encryption/Test/Unit/EncryptorTest.php
index 4fdbd558dafd3..892f8902fd432 100644
--- a/lib/internal/Magento/Framework/Encryption/Test/Unit/EncryptorTest.php
+++ b/lib/internal/Magento/Framework/Encryption/Test/Unit/EncryptorTest.php
@@ -86,6 +86,9 @@ public function testValidateHash($password, $hash, $expected)
         $this->assertEquals($expected, $actual);
     }
 
+    /**
+     * @return array
+     */
     public function validateHashDataProvider()
     {
         return [
@@ -112,6 +115,9 @@ public function testEncryptWithEmptyKey($key)
         $this->assertEquals($value, $model->encrypt($value));
     }
 
+    /**
+     * @return array
+     */
     public function encryptWithEmptyKeyDataProvider()
     {
         return [[null], [0], [''], ['0']];
@@ -134,6 +140,9 @@ public function testDecryptWithEmptyKey($key)
         $this->assertEquals('', $model->decrypt($value));
     }
 
+    /**
+     * @return array
+     */
     public function decryptWithEmptyKeyDataProvider()
     {
         return [[null], [0], [''], ['0']];
@@ -208,6 +217,9 @@ public function testValidateKey()
         $this->assertEquals($crypt->decrypt($expectedEncryptedData), $actual->decrypt($actualEncryptedData));
     }
 
+    /**
+     * @return array
+     */
     public function testUseSpecifiedHashingAlgoDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Encryption/Test/Unit/Helper/SecurityTest.php b/lib/internal/Magento/Framework/Encryption/Test/Unit/Helper/SecurityTest.php
index f4403c5c97797..875d8aff40ef2 100644
--- a/lib/internal/Magento/Framework/Encryption/Test/Unit/Helper/SecurityTest.php
+++ b/lib/internal/Magento/Framework/Encryption/Test/Unit/Helper/SecurityTest.php
@@ -31,6 +31,9 @@ public function testCompareStrings($expected, $actual, $result)
         $this->assertEquals($result, Security::compareStrings($expected, $actual));
     }
 
+    /**
+     * @return array
+     */
     public function dataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/EntityManager/Test/Unit/CustomAttributesMapperTest.php b/lib/internal/Magento/Framework/EntityManager/Test/Unit/CustomAttributesMapperTest.php
index a404811f9e4db..108af4de2f7c8 100644
--- a/lib/internal/Magento/Framework/EntityManager/Test/Unit/CustomAttributesMapperTest.php
+++ b/lib/internal/Magento/Framework/EntityManager/Test/Unit/CustomAttributesMapperTest.php
@@ -197,6 +197,9 @@ public function testDatabaseToEntity()
         $this->assertEquals($expected, $actual);
     }
 
+    /**
+     * @return array
+     */
     private function getAttributes()
     {
         /* Attribute with the code we want to copy */
diff --git a/lib/internal/Magento/Framework/Event/Config/SchemaLocator.php b/lib/internal/Magento/Framework/Event/Config/SchemaLocator.php
index 82f54b7ebc3e6..1a646be88b84c 100644
--- a/lib/internal/Magento/Framework/Event/Config/SchemaLocator.php
+++ b/lib/internal/Magento/Framework/Event/Config/SchemaLocator.php
@@ -12,6 +12,10 @@ class SchemaLocator implements \Magento\Framework\Config\SchemaLocatorInterface
     /** @var \Magento\Framework\Config\Dom\UrnResolver */
     protected $urnResolver;
 
+    /**
+     * SchemaLocator constructor.
+     * @param \Magento\Framework\Config\Dom\UrnResolver $urnResolver
+     */
     public function __construct(\Magento\Framework\Config\Dom\UrnResolver $urnResolver)
     {
         $this->urnResolver = $urnResolver;
diff --git a/lib/internal/Magento/Framework/Event/Test/Unit/Observer/CollectionTest.php b/lib/internal/Magento/Framework/Event/Test/Unit/Observer/CollectionTest.php
index b3a6a4a429453..4b774b544cf55 100644
--- a/lib/internal/Magento/Framework/Event/Test/Unit/Observer/CollectionTest.php
+++ b/lib/internal/Magento/Framework/Event/Test/Unit/Observer/CollectionTest.php
@@ -81,6 +81,9 @@ public function testGetObserverByName($name)
         $this->assertEquals($observer, $this->observerCollection->getObserverByName($name));
     }
 
+    /**
+     * @return array
+     */
     public function observerNameProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Event/Test/Unit/Observer/CronTest.php b/lib/internal/Magento/Framework/Event/Test/Unit/Observer/CronTest.php
index 2e505c7753399..1c2a451cea91f 100644
--- a/lib/internal/Magento/Framework/Event/Test/Unit/Observer/CronTest.php
+++ b/lib/internal/Magento/Framework/Event/Test/Unit/Observer/CronTest.php
@@ -37,6 +37,9 @@ public function testGetNumeric($value, $expectedResult)
         $this->assertEquals($expectedResult, $this->cron->getNumeric($value));
     }
 
+    /**
+     * @return array
+     */
     public function numericValueProvider()
     {
         return [
@@ -78,6 +81,9 @@ public function testMatchCronExpression($expression, $number, $expectedResult)
         $this->assertEquals($expectedResult, $this->cron->matchCronExpression($expression, $number));
     }
 
+    /**
+     * @return array
+     */
     public function matchCronExpressionProvider()
     {
         return [
@@ -107,6 +113,9 @@ public function testIsValidFor($time, $expression, $expectedResult)
         $this->assertEquals($expectedResult, $this->cron->isValidFor($eventMock));
     }
 
+    /**
+     * @return array
+     */
     public function isValidForProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Event/Test/Unit/Observer/RegexTest.php b/lib/internal/Magento/Framework/Event/Test/Unit/Observer/RegexTest.php
index df31d4ae71cd1..0c9b09996178a 100644
--- a/lib/internal/Magento/Framework/Event/Test/Unit/Observer/RegexTest.php
+++ b/lib/internal/Magento/Framework/Event/Test/Unit/Observer/RegexTest.php
@@ -44,6 +44,9 @@ public function testIsValidFor($pattern, $name, $expectedResult)
         $this->assertEquals($expectedResult, $this->regex->isValidFor($eventMock));
     }
 
+    /**
+     * @return array
+     */
     public function isValidForProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Filesystem/Test/Unit/Driver/FileTest.php b/lib/internal/Magento/Framework/Filesystem/Test/Unit/Driver/FileTest.php
index 89e58f5728dc0..ca600e7ebb713 100644
--- a/lib/internal/Magento/Framework/Filesystem/Test/Unit/Driver/FileTest.php
+++ b/lib/internal/Magento/Framework/Filesystem/Test/Unit/Driver/FileTest.php
@@ -30,7 +30,10 @@ public function testGetAbsolutePath($basePath, $path, $expected)
         $file = new File();
         $this->assertEquals($expected, $file->getAbsolutePath($basePath, $path));
     }
-    
+
+    /**
+     * @return array
+     */
     public function dataProviderForTestGetAbsolutePath()
     {
         return [
@@ -50,6 +53,9 @@ public function testGetRelativePath($basePath, $path, $expected)
         $this->assertEquals($expected, $file->getRelativePath($basePath, $path));
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderForTestGetRelativePath()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Filesystem/Test/Unit/Driver/HttpTest.php b/lib/internal/Magento/Framework/Filesystem/Test/Unit/Driver/HttpTest.php
index 7e342fea6ff0c..d0fb24f7b748d 100644
--- a/lib/internal/Magento/Framework/Filesystem/Test/Unit/Driver/HttpTest.php
+++ b/lib/internal/Magento/Framework/Filesystem/Test/Unit/Driver/HttpTest.php
@@ -40,6 +40,9 @@ public function testIsExists($status, $result)
         $this->assertEquals($result, (new Http())->isExists(''));
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderForTestIsExists()
     {
         return [['200 OK', true], ['404 Not Found', false]];
@@ -54,6 +57,9 @@ public function testStat($headers, $result)
         $this->assertEquals($result, (new Http())->stat(''));
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderForTestStat()
     {
         $headers1 = [
diff --git a/lib/internal/Magento/Framework/Filesystem/Test/Unit/File/ExcludeFilterTest.php b/lib/internal/Magento/Framework/Filesystem/Test/Unit/File/ExcludeFilterTest.php
index 9dd2f09a60d84..aaf61637d5fc5 100644
--- a/lib/internal/Magento/Framework/Filesystem/Test/Unit/File/ExcludeFilterTest.php
+++ b/lib/internal/Magento/Framework/Filesystem/Test/Unit/File/ExcludeFilterTest.php
@@ -39,6 +39,9 @@ public function testExclusion()
         $this->assertTrue(!in_array(BP . '/var/session/', $result), 'Filtered path should not be in array');
     }
 
+    /**
+     * @return \Generator
+     */
     private function getFilesIterator ()
     {
         $files = [
diff --git a/lib/internal/Magento/Framework/Filter/Test/Unit/Input/MaliciousCodeTest.php b/lib/internal/Magento/Framework/Filter/Test/Unit/Input/MaliciousCodeTest.php
index e79e07b89752e..69ff285a2b3fb 100644
--- a/lib/internal/Magento/Framework/Filter/Test/Unit/Input/MaliciousCodeTest.php
+++ b/lib/internal/Magento/Framework/Filter/Test/Unit/Input/MaliciousCodeTest.php
@@ -33,6 +33,9 @@ public function testFilter($input, $expectedOutput)
         );
     }
 
+    /**
+     * @return array
+     */
     public function filterDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Filter/Test/Unit/Template/Tokenizer/ParameterTest.php b/lib/internal/Magento/Framework/Filter/Test/Unit/Template/Tokenizer/ParameterTest.php
index 7a44bf7cb4ef6..47e815ae4a719 100644
--- a/lib/internal/Magento/Framework/Filter/Test/Unit/Template/Tokenizer/ParameterTest.php
+++ b/lib/internal/Magento/Framework/Filter/Test/Unit/Template/Tokenizer/ParameterTest.php
@@ -41,6 +41,9 @@ public function testGetValue($string, $expectedValue)
         $this->assertEquals($expectedValue, $this->_filter->getValue());
     }
 
+    /**
+     * @return array
+     */
     public function sampleTokenizeStringProvider()
     {
         return [
@@ -51,6 +54,9 @@ public function sampleTokenizeStringProvider()
         ];
     }
 
+    /**
+     * @return array
+     */
     public function sampleGetValueStringProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Filter/Test/Unit/Template/Tokenizer/VariableTest.php b/lib/internal/Magento/Framework/Filter/Test/Unit/Template/Tokenizer/VariableTest.php
index 6c3e1edd5371e..19d3d0556b8e3 100644
--- a/lib/internal/Magento/Framework/Filter/Test/Unit/Template/Tokenizer/VariableTest.php
+++ b/lib/internal/Magento/Framework/Filter/Test/Unit/Template/Tokenizer/VariableTest.php
@@ -30,6 +30,9 @@ public function testTokenize($string, $expectedValue)
         $this->assertEquals($expectedValue, $this->_filter->tokenize());
     }
 
+    /**
+     * @return array
+     */
     public function sampleTokenizeStringProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Filter/Test/Unit/TemplateTest.php b/lib/internal/Magento/Framework/Filter/Test/Unit/TemplateTest.php
index ad47b4122ad67..a305fb6309b15 100644
--- a/lib/internal/Magento/Framework/Filter/Test/Unit/TemplateTest.php
+++ b/lib/internal/Magento/Framework/Filter/Test/Unit/TemplateTest.php
@@ -138,6 +138,9 @@ public function testVarDirective($construction, $variables, $expectedResult)
         $this->assertEquals($expectedResult, $this->templateFilter->filter($construction));
     }
 
+    /**
+     * @return array
+     */
     public function varDirectiveDataProvider()
     {
         /* @var $stub \Magento\Framework\DataObject|\PHPUnit_Framework_MockObject_MockObject */
diff --git a/lib/internal/Magento/Framework/HTTP/Test/Unit/Adapter/CurlTest.php b/lib/internal/Magento/Framework/HTTP/Test/Unit/Adapter/CurlTest.php
index b839254e07035..34c0c4069a241 100644
--- a/lib/internal/Magento/Framework/HTTP/Test/Unit/Adapter/CurlTest.php
+++ b/lib/internal/Magento/Framework/HTTP/Test/Unit/Adapter/CurlTest.php
@@ -38,6 +38,9 @@ public function testRead($response)
         $this->assertEquals(file_get_contents(__DIR__ . '/_files/curl_response_expected.txt'), $this->model->read());
     }
 
+    /**
+     * @return array
+     */
     public function readDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/HTTP/Test/Unit/PhpEnvironment/RequestTest.php b/lib/internal/Magento/Framework/HTTP/Test/Unit/PhpEnvironment/RequestTest.php
index be65479f5503f..5cb6bc50647b1 100644
--- a/lib/internal/Magento/Framework/HTTP/Test/Unit/PhpEnvironment/RequestTest.php
+++ b/lib/internal/Magento/Framework/HTTP/Test/Unit/PhpEnvironment/RequestTest.php
@@ -50,6 +50,10 @@ public function tearDown()
         $_SERVER = $this->serverArray;
     }
 
+    /**
+     * @param null $uri
+     * @return Request
+     */
     private function getModel($uri = null)
     {
         return new Request($this->cookieReader, $this->converter, $uri);
diff --git a/lib/internal/Magento/Framework/Image/Test/Unit/Adapter/AbstractTest.php b/lib/internal/Magento/Framework/Image/Test/Unit/Adapter/AbstractTest.php
index 8e4fc4f389d1d..f45e90dd7edfa 100644
--- a/lib/internal/Magento/Framework/Image/Test/Unit/Adapter/AbstractTest.php
+++ b/lib/internal/Magento/Framework/Image/Test/Unit/Adapter/AbstractTest.php
@@ -120,6 +120,9 @@ public function testPrepareDestination($destination, $newName, $expectedResult)
         $this->assertEquals($expectedResult, $result);
     }
 
+    /**
+     * @return array
+     */
     public function prepareDestinationDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Image/Test/Unit/Adapter/Gd2Test.php b/lib/internal/Magento/Framework/Image/Test/Unit/Adapter/Gd2Test.php
index d142ac98a4201..e64c277a7276a 100644
--- a/lib/internal/Magento/Framework/Image/Test/Unit/Adapter/Gd2Test.php
+++ b/lib/internal/Magento/Framework/Image/Test/Unit/Adapter/Gd2Test.php
@@ -73,6 +73,9 @@ public function testOpen($fileData, $exception, $limit)
         $this->adapter->open('file');
     }
 
+    /**
+     * @return array
+     */
     public function filesProvider()
     {
         $smallFile = [
diff --git a/lib/internal/Magento/Framework/Indexer/Config/SchemaLocator.php b/lib/internal/Magento/Framework/Indexer/Config/SchemaLocator.php
index e91d5e6bc2f10..6f338256b8c3e 100644
--- a/lib/internal/Magento/Framework/Indexer/Config/SchemaLocator.php
+++ b/lib/internal/Magento/Framework/Indexer/Config/SchemaLocator.php
@@ -12,6 +12,10 @@ class SchemaLocator implements SchemaLocatorInterface
     /** @var \Magento\Framework\Config\Dom\UrnResolver */
     protected $urnResolver;
 
+    /**
+     * SchemaLocator constructor.
+     * @param \Magento\Framework\Config\Dom\UrnResolver $urnResolver
+     */
     public function __construct(\Magento\Framework\Config\Dom\UrnResolver $urnResolver)
     {
         $this->urnResolver = $urnResolver;
diff --git a/lib/internal/Magento/Framework/Indexer/Test/Unit/IndexStructureTest.php b/lib/internal/Magento/Framework/Indexer/Test/Unit/IndexStructureTest.php
index 6dfcf19604a79..e55afd8a43dc0 100644
--- a/lib/internal/Magento/Framework/Indexer/Test/Unit/IndexStructureTest.php
+++ b/lib/internal/Magento/Framework/Indexer/Test/Unit/IndexStructureTest.php
@@ -182,6 +182,12 @@ private function createDimensionMock($name, $value)
         return $dimension;
     }
 
+    /**
+     * @param $callNumber
+     * @param $tableName
+     * @param $isTableExist
+     * @return mixed
+     */
     private function mockDropTable($callNumber, $tableName, $isTableExist)
     {
         $this->connectionInterface->expects($this->at($callNumber++))
@@ -197,6 +203,11 @@ private function mockDropTable($callNumber, $tableName, $isTableExist)
         return $callNumber;
     }
 
+    /**
+     * @param $callNumber
+     * @param $tableName
+     * @return mixed
+     */
     private function mockFlatTable($callNumber, $tableName)
     {
         $table = $this->getMockBuilder('\Magento\Framework\DB\Ddl\Table')
@@ -219,6 +230,11 @@ private function mockFlatTable($callNumber, $tableName)
         return $callNumber;
     }
 
+    /**
+     * @param $callNumber
+     * @param $tableName
+     * @return mixed
+     */
     private function mockFulltextTable($callNumber, $tableName)
     {
         $table = $this->getMockBuilder('\Magento\Framework\DB\Ddl\Table')
diff --git a/lib/internal/Magento/Framework/Interception/Test/Unit/Config/ConfigTest.php b/lib/internal/Magento/Framework/Interception/Test/Unit/Config/ConfigTest.php
index 88c510d797845..0bd02f49b66be 100644
--- a/lib/internal/Magento/Framework/Interception/Test/Unit/Config/ConfigTest.php
+++ b/lib/internal/Magento/Framework/Interception/Test/Unit/Config/ConfigTest.php
@@ -178,6 +178,9 @@ public function testHasPluginsWhenDataIsCached($expectedResult, $type)
         $this->assertEquals($expectedResult, $model->hasPlugins($type));
     }
 
+    /**
+     * @return array
+     */
     public function hasPluginsDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Math/Test/Unit/RandomTest.php b/lib/internal/Magento/Framework/Math/Test/Unit/RandomTest.php
index 6b4b574c5a866..e7e0140c70839 100644
--- a/lib/internal/Magento/Framework/Math/Test/Unit/RandomTest.php
+++ b/lib/internal/Magento/Framework/Math/Test/Unit/RandomTest.php
@@ -26,6 +26,9 @@ public function testGetRandomString($length, $chars = null)
         }
     }
 
+    /**
+     * @return array
+     */
     public function getRandomStringDataProvider()
     {
         return [
@@ -77,6 +80,9 @@ public function testGetRandomNumber($min, $max)
         $this->assertGreaterThanOrEqual($min, $number);
     }
 
+    /**
+     * @return array
+     */
     public function testGetRandomNumberProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Message/Test/Unit/ManagerTest.php b/lib/internal/Magento/Framework/Message/Test/Unit/ManagerTest.php
index d876207c3430c..61e95ec3a1508 100644
--- a/lib/internal/Magento/Framework/Message/Test/Unit/ManagerTest.php
+++ b/lib/internal/Magento/Framework/Message/Test/Unit/ManagerTest.php
@@ -247,6 +247,9 @@ public function testAddMessage($type, $methodName)
         $this->assertTrue($this->model->hasMessages());
     }
 
+    /**
+     * @return array
+     */
     public function addMessageDataProvider()
     {
         return [
@@ -277,6 +280,9 @@ public function testAddUniqueMessagesWhenMessagesImplementMessageInterface($mess
         $this->model->addUniqueMessages([$messages]);
     }
 
+    /**
+     * @return array
+     */
     public function addUniqueMessagesWhenMessagesImplementMessageInterfaceDataProvider()
     {
         return [
@@ -310,6 +316,9 @@ public function testAddUniqueMessages($messages)
         $this->model->addUniqueMessages($messages);
     }
 
+    /**
+     * @return array
+     */
     public function addUniqueMessagesDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Model/Test/Unit/ResourceModel/Db/AbstractDbTest.php b/lib/internal/Magento/Framework/Model/Test/Unit/ResourceModel/Db/AbstractDbTest.php
index ba35fa1af7496..aaafe0005b8ec 100644
--- a/lib/internal/Magento/Framework/Model/Test/Unit/ResourceModel/Db/AbstractDbTest.php
+++ b/lib/internal/Magento/Framework/Model/Test/Unit/ResourceModel/Db/AbstractDbTest.php
@@ -165,6 +165,9 @@ public function testGetMainTable($tableName, $expectedResult)
         $this->assertEquals($expectedResult, $this->_model->getMainTable());
     }
 
+    /**
+     * @return array
+     */
     public function getTableDataProvider()
     {
         return [
@@ -216,6 +219,9 @@ public function testGetChecksum($checksum, $expected)
         $this->assertEquals($expected, $this->_model->getChecksum($checksum));
     }
 
+    /**
+     * @return array
+     */
     public function getChecksumProvider()
     {
         return [
@@ -401,6 +407,9 @@ public function testGetDataChanged($getOriginData, $expected)
         $this->assertEquals($expected, $this->_model->hasDataChanged($abstractModelMock));
     }
 
+    /**
+     * @return array
+     */
     public function hasDataChangedDataProvider()
     {
         return [
@@ -566,6 +575,9 @@ public function testSaveNewObject($pkIncrement)
         $reflectionMethod->invokeArgs($model, [$inputObject]);
     }
 
+    /**
+     * @return array
+     */
     public function saveNewObjectDataProvider()
     {
         return [[true], [false]];
diff --git a/lib/internal/Magento/Framework/Model/Test/Unit/ResourceModel/Db/Collection/AbstractCollectionTest.php b/lib/internal/Magento/Framework/Model/Test/Unit/ResourceModel/Db/Collection/AbstractCollectionTest.php
index 8ca30b525511b..7caf463457ed6 100644
--- a/lib/internal/Magento/Framework/Model/Test/Unit/ResourceModel/Db/Collection/AbstractCollectionTest.php
+++ b/lib/internal/Magento/Framework/Model/Test/Unit/ResourceModel/Db/Collection/AbstractCollectionTest.php
@@ -98,6 +98,9 @@ protected function tearDown()
         \Magento\Framework\App\ObjectManager::setInstance($objectManagerMock);
     }
 
+    /**
+     * @return object
+     */
     protected function getUut()
     {
         return $this->objectManagerHelper->getObject(
@@ -219,6 +222,9 @@ public function testGetSelect($idFieldNameRet, $getPartRet, $expected)
         $this->assertTrue($this->uut->getSelect() instanceof Select);
     }
 
+    /**
+     * @return array
+     */
     public function getSelectDataProvider()
     {
         $columnMock = $this->getMock('Zend_Db_Expr', ['__toString'], [], '', false);
@@ -245,6 +251,9 @@ public function testAddFieldToSelect($field, $alias, $expectedFieldsToSelect)
         $this->assertTrue($this->uut->wereFieldsToSelectChanged());
     }
 
+    /**
+     * @return array
+     */
     public function addFieldToSelectDataProvider()
     {
         return [
@@ -264,6 +273,9 @@ public function testAddExpressionFieldToSelect($alias, $expression, $fields, $ex
         $this->assertTrue($this->uut->addExpressionFieldToSelect($alias, $expression, $fields) instanceof Uut);
     }
 
+    /**
+     * @return array
+     */
     public function addExpressionFieldToSelectDataProvider()
     {
         return [
@@ -288,6 +300,9 @@ public function testRemoveFieldFromSelect(
         $this->assertEquals($expectedWereFieldsToSelectChanged, $this->uut->wereFieldsToSelectChanged());
     }
 
+    /**
+     * @return array
+     */
     public function removeFieldFromSelectDataProvider()
     {
         return [
@@ -375,6 +390,9 @@ public function testJoin($table, $cond, $cols, $expected)
         $this->assertEquals($expected, $this->uut->getJoinedTables());
     }
 
+    /**
+     * @return array
+     */
     public function joinDataProvider()
     {
         return [
@@ -416,26 +434,41 @@ public function testSave()
  */
 class Uut extends AbstractCollection
 {
+    /**
+     * @return bool
+     */
     public function wereFieldsToSelectChanged()
     {
         return $this->_fieldsToSelectChanged;
     }
 
+    /**
+     * @return array|null
+     */
     public function getFieldsToSelect()
     {
         return $this->_fieldsToSelect;
     }
 
+    /**
+     * @param array $fields
+     */
     public function setFieldsToSelect(array $fields)
     {
         $this->_fieldsToSelect = $fields;
     }
 
+    /**
+     * @param $resource
+     */
     public function setResource($resource)
     {
         $this->_resource = $resource;
     }
 
+    /**
+     * @return array
+     */
     public function getJoinedTables()
     {
         return $this->_joinedTables;
diff --git a/lib/internal/Magento/Framework/Module/Test/Unit/Declaration/Converter/DomTest.php b/lib/internal/Magento/Framework/Module/Test/Unit/Declaration/Converter/DomTest.php
index 6a34f0ae4081e..b335804f58b02 100644
--- a/lib/internal/Magento/Framework/Module/Test/Unit/Declaration/Converter/DomTest.php
+++ b/lib/internal/Magento/Framework/Module/Test/Unit/Declaration/Converter/DomTest.php
@@ -42,6 +42,9 @@ public function testConvertWithInvalidDom($xmlString)
         }
     }
 
+    /**
+     * @return array
+     */
     public function convertWithInvalidDomDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Module/Test/Unit/Dir/ReverseResolverTest.php b/lib/internal/Magento/Framework/Module/Test/Unit/Dir/ReverseResolverTest.php
index 4ab10bb953f85..7678d4a928e08 100644
--- a/lib/internal/Magento/Framework/Module/Test/Unit/Dir/ReverseResolverTest.php
+++ b/lib/internal/Magento/Framework/Module/Test/Unit/Dir/ReverseResolverTest.php
@@ -54,6 +54,9 @@ public function testGetModuleName($path, $expectedResult)
         $this->assertSame($expectedResult, $this->_model->getModuleName($path));
     }
 
+    /**
+     * @return array
+     */
     public function getModuleNameDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Module/Test/Unit/ManagerTest.php b/lib/internal/Magento/Framework/Module/Test/Unit/ManagerTest.php
index 1d555bd782bae..1e2e957ff334f 100644
--- a/lib/internal/Magento/Framework/Module/Test/Unit/ManagerTest.php
+++ b/lib/internal/Magento/Framework/Module/Test/Unit/ManagerTest.php
@@ -80,6 +80,9 @@ public function testIsOutputEnabledGenericConfigPath($configValue, $expectedResu
         $this->assertEquals($expectedResult, $this->_model->isOutputEnabled('Module_One'));
     }
 
+    /**
+     * @return array
+     */
     public function isOutputEnabledGenericConfigPathDataProvider()
     {
         return ['output disabled' => [true, false], 'output enabled' => [false, true]];
@@ -100,6 +103,9 @@ public function testIsOutputEnabledCustomConfigPath($configValue, $expectedResul
         $this->assertEquals($expectedResult, $this->_model->isOutputEnabled('Module_Two'));
     }
 
+    /**
+     * @return array
+     */
     public function isOutputEnabledCustomConfigPathDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Mview/Test/Unit/View/ChangelogTest.php b/lib/internal/Magento/Framework/Mview/Test/Unit/View/ChangelogTest.php
index 3f942b241c021..6fe52712ccd3e 100644
--- a/lib/internal/Magento/Framework/Mview/Test/Unit/View/ChangelogTest.php
+++ b/lib/internal/Magento/Framework/Mview/Test/Unit/View/ChangelogTest.php
@@ -262,6 +262,10 @@ protected function mockGetTableName()
         $this->resourceMock->expects($this->once())->method('getTableName')->will($this->returnArgument(0));
     }
 
+    /**
+     * @param $changelogTableName
+     * @param $result
+     */
     protected function mockIsTableExists($changelogTableName, $result)
     {
         $this->connectionMock->expects(
diff --git a/lib/internal/Magento/Framework/Mview/Test/Unit/ViewTest.php b/lib/internal/Magento/Framework/Mview/Test/Unit/ViewTest.php
index 68d2783158e8e..64f56b6d1de12 100644
--- a/lib/internal/Magento/Framework/Mview/Test/Unit/ViewTest.php
+++ b/lib/internal/Magento/Framework/Mview/Test/Unit/ViewTest.php
@@ -498,6 +498,9 @@ public function testResumeNotSuspended($status)
         $this->model->resume();
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderResumeNotSuspended()
     {
         return [
@@ -554,6 +557,9 @@ public function testIsEnabled($mode, $result)
         $this->assertEquals($result, $this->model->isEnabled());
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderIsEnabled()
     {
         return [
@@ -575,6 +581,9 @@ public function testIsIdle($status, $result)
         $this->assertEquals($result, $this->model->isIdle());
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderIsIdle()
     {
         return [
@@ -597,6 +606,9 @@ public function testIsWorking($status, $result)
         $this->assertEquals($result, $this->model->isWorking());
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderIsWorking()
     {
         return [
@@ -619,6 +631,9 @@ public function testIsSuspended($status, $result)
         $this->assertEquals($result, $this->model->isSuspended());
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderIsSuspended()
     {
         return [
@@ -651,6 +666,9 @@ protected function loadView()
         $this->model->load($viewId);
     }
 
+    /**
+     * @return array
+     */
     protected function getViewData()
     {
         return [
diff --git a/lib/internal/Magento/Framework/ObjectManager/Test/Unit/Code/Generator/RepositoryTest.php b/lib/internal/Magento/Framework/ObjectManager/Test/Unit/Code/Generator/RepositoryTest.php
index cd02708e1023c..c70287a58577c 100644
--- a/lib/internal/Magento/Framework/ObjectManager/Test/Unit/Code/Generator/RepositoryTest.php
+++ b/lib/internal/Magento/Framework/ObjectManager/Test/Unit/Code/Generator/RepositoryTest.php
@@ -18,21 +18,33 @@ class RepositoryTest extends EntityChildTestAbstract
     const GENERATOR_CLASS_NAME = 'Magento\Framework\ObjectManager\Code\Generator\Repository';
     const OUTPUT_FILE_NAME = 'SampleConverter.php';
 
+    /**
+     * @return string
+     */
     protected function getSourceClassName()
     {
         return self::SOURCE_CLASS_NAME;
     }
 
+    /**
+     * @return string
+     */
     protected function getResultClassName()
     {
         return self::RESULT_CLASS_NAME;
     }
 
+    /**
+     * @return string
+     */
     protected function getGeneratorClassName()
     {
         return self::GENERATOR_CLASS_NAME;
     }
 
+    /**
+     * @return string
+     */
     protected function getOutputFileName()
     {
         return self::OUTPUT_FILE_NAME;
diff --git a/lib/internal/Magento/Framework/ObjectManager/Test/Unit/Config/Reader/_files/ConfigDomMock.php b/lib/internal/Magento/Framework/ObjectManager/Test/Unit/Config/Reader/_files/ConfigDomMock.php
index b4b9e628164b3..3a9cf3b9efe8a 100644
--- a/lib/internal/Magento/Framework/ObjectManager/Test/Unit/Config/Reader/_files/ConfigDomMock.php
+++ b/lib/internal/Magento/Framework/ObjectManager/Test/Unit/Config/Reader/_files/ConfigDomMock.php
@@ -32,6 +32,9 @@ public function validate($schemaFile, $errors)
         return true;
     }
 
+    /**
+     * @return string
+     */
     public function getDom()
     {
         return 'reader dom result';
diff --git a/lib/internal/Magento/Framework/ObjectManager/Test/Unit/DefinitionFactoryTest.php b/lib/internal/Magento/Framework/ObjectManager/Test/Unit/DefinitionFactoryTest.php
index a48e4fa3e88e3..cb6bfd1cdaadf 100644
--- a/lib/internal/Magento/Framework/ObjectManager/Test/Unit/DefinitionFactoryTest.php
+++ b/lib/internal/Magento/Framework/ObjectManager/Test/Unit/DefinitionFactoryTest.php
@@ -68,6 +68,9 @@ public function testCreatePluginsAndRelationsReadable($path, $callMethod, $expec
         $this->assertInstanceOf($expectedClass, $this->model->$callMethod());
     }
 
+    /**
+     * @return array
+     */
     public function createPluginsAndRelationsReadableDataProvider()
     {
         return [
@@ -98,6 +101,9 @@ public function testCreatePluginsAndRelationsNotReadable($path, $callMethod, $ex
         $this->assertInstanceOf($expectedClass, $this->model->$callMethod());
     }
 
+    /**
+     * @return array
+     */
     public function createPluginsAndRelationsNotReadableDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/ObjectManager/Test/Unit/Relations/RuntimeTest.php b/lib/internal/Magento/Framework/ObjectManager/Test/Unit/Relations/RuntimeTest.php
index 37a3c9a57a620..9ac1700a22c8c 100644
--- a/lib/internal/Magento/Framework/ObjectManager/Test/Unit/Relations/RuntimeTest.php
+++ b/lib/internal/Magento/Framework/ObjectManager/Test/Unit/Relations/RuntimeTest.php
@@ -30,6 +30,9 @@ public function testGetParents($type, $parents)
         $this->assertEquals($parents, $this->model->getParents($type));
     }
 
+    /**
+     * @return array
+     */
     public function getParentsDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/ObjectManager/Test/Unit/_files/Aggregate/AggregateParent.php b/lib/internal/Magento/Framework/ObjectManager/Test/Unit/_files/Aggregate/AggregateParent.php
index 3c494b6abbb94..826e94c6cb8df 100644
--- a/lib/internal/Magento/Framework/ObjectManager/Test/Unit/_files/Aggregate/AggregateParent.php
+++ b/lib/internal/Magento/Framework/ObjectManager/Test/Unit/_files/Aggregate/AggregateParent.php
@@ -17,6 +17,14 @@ class AggregateParent implements \Magento\Test\Di\Aggregate\AggregateInterface
 
     public $optionalScalar;
 
+    /**
+     * AggregateParent constructor.
+     * @param \Magento\Test\Di\DiInterface $interface
+     * @param \Magento\Test\Di\DiParent $parent
+     * @param \Magento\Test\Di\Child $child
+     * @param $scalar
+     * @param int $optionalScalar
+     */
     public function __construct(
         \Magento\Test\Di\DiInterface $interface,
         \Magento\Test\Di\DiParent $parent,
diff --git a/lib/internal/Magento/Framework/ObjectManager/Test/Unit/_files/Aggregate/Child.php b/lib/internal/Magento/Framework/ObjectManager/Test/Unit/_files/Aggregate/Child.php
index b84375e3b5436..2d24e640e90fa 100644
--- a/lib/internal/Magento/Framework/ObjectManager/Test/Unit/_files/Aggregate/Child.php
+++ b/lib/internal/Magento/Framework/ObjectManager/Test/Unit/_files/Aggregate/Child.php
@@ -11,6 +11,16 @@ class Child extends \Magento\Test\Di\Aggregate\AggregateParent
 
     public $secondOptionalScalar;
 
+    /**
+     * Child constructor.
+     * @param \Magento\Test\Di\DiInterface $interface
+     * @param \Magento\Test\Di\DiParent $parent
+     * @param \Magento\Test\Di\Child $child
+     * @param $scalar
+     * @param $secondScalar
+     * @param int $optionalScalar
+     * @param string $secondOptionalScalar
+     */
     public function __construct(
         \Magento\Test\Di\DiInterface $interface,
         \Magento\Test\Di\DiParent $parent,
diff --git a/lib/internal/Magento/Framework/ObjectManager/Test/Unit/_files/Aggregate/WithOptional.php b/lib/internal/Magento/Framework/ObjectManager/Test/Unit/_files/Aggregate/WithOptional.php
index 1c5ac56e2735c..58ee7c819490d 100644
--- a/lib/internal/Magento/Framework/ObjectManager/Test/Unit/_files/Aggregate/WithOptional.php
+++ b/lib/internal/Magento/Framework/ObjectManager/Test/Unit/_files/Aggregate/WithOptional.php
@@ -11,6 +11,11 @@ class WithOptional
 
     public $child;
 
+    /**
+     * WithOptional constructor.
+     * @param \Magento\Test\Di\DiParent|null $parent
+     * @param \Magento\Test\Di\Child|null $child
+     */
     public function __construct(\Magento\Test\Di\DiParent $parent = null, \Magento\Test\Di\Child $child = null)
     {
         $this->parent = $parent;
diff --git a/lib/internal/Magento/Framework/Pricing/Test/Unit/Adjustment/CollectionTest.php b/lib/internal/Magento/Framework/Pricing/Test/Unit/Adjustment/CollectionTest.php
index f22213a19d76d..8d2ae0e923647 100644
--- a/lib/internal/Magento/Framework/Pricing/Test/Unit/Adjustment/CollectionTest.php
+++ b/lib/internal/Magento/Framework/Pricing/Test/Unit/Adjustment/CollectionTest.php
@@ -79,6 +79,9 @@ public function testGetItems($adjustments, $expectedResult)
         $this->assertEmpty(array_diff($expectedResult, array_keys($result)));
     }
 
+    /**
+     * @return array
+     */
     public function getItemsDataProvider()
     {
         return [
@@ -104,6 +107,9 @@ public function testGetItemByCode($adjustments, $code, $expectedResult)
         $this->assertEquals($expectedResult, $item->getAdjustmentCode());
     }
 
+    /**
+     * @return array
+     */
     public function getItemByCodeDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Pricing/Test/Unit/Adjustment/PoolTest.php b/lib/internal/Magento/Framework/Pricing/Test/Unit/Adjustment/PoolTest.php
index 8e7f9b49fd4cd..066a2ee575f93 100644
--- a/lib/internal/Magento/Framework/Pricing/Test/Unit/Adjustment/PoolTest.php
+++ b/lib/internal/Magento/Framework/Pricing/Test/Unit/Adjustment/PoolTest.php
@@ -65,6 +65,9 @@ public function testGetAdjustmentByCode($code, $expectedResult)
         $this->assertEquals($expectedResult, $result);
     }
 
+    /**
+     * @return array
+     */
     public function getAdjustmentByCodeDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Pricing/Test/Unit/Helper/DataTest.php b/lib/internal/Magento/Framework/Pricing/Test/Unit/Helper/DataTest.php
index b177c4d4fcb85..9699b30cd8527 100644
--- a/lib/internal/Magento/Framework/Pricing/Test/Unit/Helper/DataTest.php
+++ b/lib/internal/Magento/Framework/Pricing/Test/Unit/Helper/DataTest.php
@@ -50,6 +50,9 @@ public function testCurrency($amount, $format, $includeContainer, $result)
         $this->assertEquals($result, $helper->currency($amount, $format, $includeContainer));
     }
 
+    /**
+     * @return array
+     */
     public function currencyDataProvider()
     {
         return [
@@ -84,6 +87,9 @@ public function testCurrencyByStore($amount, $store, $format, $includeContainer,
         $this->assertEquals($result, $helper->currencyByStore($amount, $store, $format, $includeContainer));
     }
 
+    /**
+     * @return array
+     */
     public function currencyByStoreDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Pricing/Test/Unit/PriceInfo/FactoryTest.php b/lib/internal/Magento/Framework/Pricing/Test/Unit/PriceInfo/FactoryTest.php
index 7a982673c8999..859068e09bbe2 100644
--- a/lib/internal/Magento/Framework/Pricing/Test/Unit/PriceInfo/FactoryTest.php
+++ b/lib/internal/Magento/Framework/Pricing/Test/Unit/PriceInfo/FactoryTest.php
@@ -92,6 +92,9 @@ protected function setUp()
         $this->factory = new Factory($this->types, $this->objectManagerMock);
     }
 
+    /**
+     * @return array
+     */
     public function createPriceInfoDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Pricing/Test/Unit/Render/AmountTest.php b/lib/internal/Magento/Framework/Pricing/Test/Unit/Render/AmountTest.php
index e6b1ebc05f216..8f3b21ab70852 100644
--- a/lib/internal/Magento/Framework/Pricing/Test/Unit/Render/AmountTest.php
+++ b/lib/internal/Magento/Framework/Pricing/Test/Unit/Render/AmountTest.php
@@ -283,6 +283,12 @@ public function testAdjustmentsHtml()
         $this->assertEquals($adjustmentHtml1 . $adjustmentHtml2, $this->model->getAdjustmentsHtml());
     }
 
+    /**
+     * @param array $data
+     * @param string $html
+     * @param string $code
+     * @return \PHPUnit_Framework_MockObject_MockObject
+     */
     protected function getAdjustmentRenderMock($data = [], $html = '', $code = 'adjustment_code')
     {
         $adjustmentRender = $this->getMockForAbstractClass(
diff --git a/lib/internal/Magento/Framework/Pricing/Test/Unit/Render/PriceBoxTest.php b/lib/internal/Magento/Framework/Pricing/Test/Unit/Render/PriceBoxTest.php
index eca27dfc5324b..a18472d655389 100644
--- a/lib/internal/Magento/Framework/Pricing/Test/Unit/Render/PriceBoxTest.php
+++ b/lib/internal/Magento/Framework/Pricing/Test/Unit/Render/PriceBoxTest.php
@@ -113,6 +113,9 @@ public function testToHtml($data, $priceCode, $cssClasses)
         $this->assertEquals($cssClasses, $priceBox->getData('css_classes'));
     }
 
+    /**
+     * @return array
+     */
     public function toHtmlDataProvider()
     {
         return [
@@ -216,6 +219,9 @@ public function testGetPriceId($prefix, $suffix, $defaultPrefix, $defaultSuffix)
         $this->assertEquals($expectedPriceId, $this->model->getPriceId($defaultPrefix, $defaultSuffix));
     }
 
+    /**
+     * @return array
+     */
     public function getPriceIdProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Reflection/Test/Unit/ExtensionAttributesProcessorTest.php b/lib/internal/Magento/Framework/Reflection/Test/Unit/ExtensionAttributesProcessorTest.php
index 8dffc20aa1630..d1570d5848728 100644
--- a/lib/internal/Magento/Framework/Reflection/Test/Unit/ExtensionAttributesProcessorTest.php
+++ b/lib/internal/Magento/Framework/Reflection/Test/Unit/ExtensionAttributesProcessorTest.php
@@ -154,6 +154,9 @@ public function testBuildOutputDataArrayWithPermission($isPermissionAllowed, $ex
         );
     }
 
+    /**
+     * @return array
+     */
     public function buildOutputDataArrayWithPermissionProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Reflection/Test/Unit/TypeProcessorTest.php b/lib/internal/Magento/Framework/Reflection/Test/Unit/TypeProcessorTest.php
index 092f0aa1dd63f..666ef8b7c2ef3 100644
--- a/lib/internal/Magento/Framework/Reflection/Test/Unit/TypeProcessorTest.php
+++ b/lib/internal/Magento/Framework/Reflection/Test/Unit/TypeProcessorTest.php
@@ -217,6 +217,9 @@ public function testProcessSimpleTypeException($value, $type)
         $this->_typeProcessor->processSimpleAndAnyType($value, $type);
     }
 
+    /**
+     * @return array
+     */
     public static function processSimpleTypeExceptionProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Search/Request/Config/SchemaLocator.php b/lib/internal/Magento/Framework/Search/Request/Config/SchemaLocator.php
index 8c2c158f9d539..4b14acb13b02c 100644
--- a/lib/internal/Magento/Framework/Search/Request/Config/SchemaLocator.php
+++ b/lib/internal/Magento/Framework/Search/Request/Config/SchemaLocator.php
@@ -13,6 +13,10 @@ class SchemaLocator implements \Magento\Framework\Config\SchemaLocatorInterface
     /** @var \Magento\Framework\Config\Dom\UrnResolver */
     protected $urnResolver;
 
+    /**
+     * SchemaLocator constructor.
+     * @param \Magento\Framework\Config\Dom\UrnResolver $urnResolver
+     */
     public function __construct(\Magento\Framework\Config\Dom\UrnResolver $urnResolver)
     {
         $this->urnResolver = $urnResolver;
diff --git a/lib/internal/Magento/Framework/Search/Test/Unit/Request/MapperTest.php b/lib/internal/Magento/Framework/Search/Test/Unit/Request/MapperTest.php
index 08403ba5e9dc2..c6c2082c6f2c1 100644
--- a/lib/internal/Magento/Framework/Search/Test/Unit/Request/MapperTest.php
+++ b/lib/internal/Magento/Framework/Search/Test/Unit/Request/MapperTest.php
@@ -849,6 +849,9 @@ public function testGetFilterException()
         $this->assertEquals($this->queryBool, $mapper->getRootQuery());
     }
 
+    /**
+     * @return array
+     */
     public function getQueryMatchProvider()
     {
         return [
@@ -876,6 +879,9 @@ public function getQueryMatchProvider()
         ];
     }
 
+    /**
+     * @return array
+     */
     public function getQueryFilterQueryReferenceProvider()
     {
         return [
@@ -923,6 +929,9 @@ public function getQueryFilterQueryReferenceProvider()
         ];
     }
 
+    /**
+     * @return array
+     */
     public function getQueryBoolProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Session/Test/Unit/ConfigTest.php b/lib/internal/Magento/Framework/Session/Test/Unit/ConfigTest.php
index 4a613d2685142..08a8896a64833 100644
--- a/lib/internal/Magento/Framework/Session/Test/Unit/ConfigTest.php
+++ b/lib/internal/Magento/Framework/Session/Test/Unit/ConfigTest.php
@@ -81,6 +81,9 @@ public function testSetOptions($option, $getter, $value)
         $this->assertSame($value, $this->config->{$getter}());
     }
 
+    /**
+     * @return array
+     */
     public function optionsProvider()
     {
         return [
@@ -342,6 +345,9 @@ public function testConstructor($isValidSame, $isValid, $expected)
         $this->assertEquals($expected, $this->config->getOptions());
     }
 
+    /**
+     * @return array
+     */
     public function constructorDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Session/Test/Unit/SaveHandler/Redis/LoggerTest.php b/lib/internal/Magento/Framework/Session/Test/Unit/SaveHandler/Redis/LoggerTest.php
index b85d2c6f61e95..18a8e20c3b7f3 100644
--- a/lib/internal/Magento/Framework/Session/Test/Unit/SaveHandler/Redis/LoggerTest.php
+++ b/lib/internal/Magento/Framework/Session/Test/Unit/SaveHandler/Redis/LoggerTest.php
@@ -70,6 +70,9 @@ public function testLog($logLevel, $method)
         $this->logger->log($message, $logLevel);
     }
 
+    /**
+     * @return array
+     */
     public function logDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Shell/Test/Unit/CommandRendererTest.php b/lib/internal/Magento/Framework/Shell/Test/Unit/CommandRendererTest.php
index 79c06abce30a8..88d07e349fd89 100644
--- a/lib/internal/Magento/Framework/Shell/Test/Unit/CommandRendererTest.php
+++ b/lib/internal/Magento/Framework/Shell/Test/Unit/CommandRendererTest.php
@@ -24,6 +24,9 @@ public function testRender($expectedCommand, $actualCommand, $testArguments)
         );
     }
 
+    /**
+     * @return array
+     */
     public function commandsDataProvider()
     {
         $testArgument  = 'argument';
diff --git a/lib/internal/Magento/Framework/Simplexml/Test/Unit/ElementTest.php b/lib/internal/Magento/Framework/Simplexml/Test/Unit/ElementTest.php
index e1c96fd6e04bc..7c3b80350a41a 100644
--- a/lib/internal/Magento/Framework/Simplexml/Test/Unit/ElementTest.php
+++ b/lib/internal/Magento/Framework/Simplexml/Test/Unit/ElementTest.php
@@ -108,6 +108,9 @@ public function testSetAttribute($name, $value)
         $this->assertEquals($xml->getAttribute($name), $value);
     }
 
+    /**
+     * @return array
+     */
     public function setAttributeDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Stdlib/Test/Unit/BooleanUtilsTest.php b/lib/internal/Magento/Framework/Stdlib/Test/Unit/BooleanUtilsTest.php
index 7589d2f58ba51..5cc3a0132afcc 100644
--- a/lib/internal/Magento/Framework/Stdlib/Test/Unit/BooleanUtilsTest.php
+++ b/lib/internal/Magento/Framework/Stdlib/Test/Unit/BooleanUtilsTest.php
@@ -38,6 +38,9 @@ public function testToBoolean($input, $expected)
         $this->assertSame($expected, $actual);
     }
 
+    /**
+     * @return array
+     */
     public function toBooleanDataProvider()
     {
         return [
@@ -64,6 +67,9 @@ public function testToBooleanException($input)
         $this->object->toBoolean($input);
     }
 
+    /**
+     * @return array
+     */
     public function toBooleanExceptionDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Stdlib/Test/Unit/Cookie/PhpCookieManagerTest.php b/lib/internal/Magento/Framework/Stdlib/Test/Unit/Cookie/PhpCookieManagerTest.php
index cef58f94edbd9..d40c25b86f1da 100644
--- a/lib/internal/Magento/Framework/Stdlib/Test/Unit/Cookie/PhpCookieManagerTest.php
+++ b/lib/internal/Magento/Framework/Stdlib/Test/Unit/Cookie/PhpCookieManagerTest.php
@@ -252,6 +252,9 @@ public function testSetSensitiveCookieNoMetadata($cookieName, $secure)
             $this->assertTrue(self::$isSetCookieInvoked);
         }
 
+        /**
+         * @return array
+         */
         public function isCurrentlySecureDataProvider()
         {
             return [
@@ -814,6 +817,11 @@ private static function assertCookieSize(
             self::assertEquals('', $path);
         }
 
+        /**
+         * @param $get
+         * @param $default
+         * @param $return
+         */
         protected function stubGetCookie($get, $default, $return)
         {
             $this->readerMock->expects($this->atLeastOnce())
diff --git a/lib/internal/Magento/Framework/Stdlib/Test/Unit/Cookie/SensitiveCookieMetadataTest.php b/lib/internal/Magento/Framework/Stdlib/Test/Unit/Cookie/SensitiveCookieMetadataTest.php
index ff8aba1424a92..60dea5fd2d61d 100644
--- a/lib/internal/Magento/Framework/Stdlib/Test/Unit/Cookie/SensitiveCookieMetadataTest.php
+++ b/lib/internal/Magento/Framework/Stdlib/Test/Unit/Cookie/SensitiveCookieMetadataTest.php
@@ -59,6 +59,9 @@ public function testConstructorAndGetHttpOnly($metadata, $httpOnly)
         $this->assertEquals('path', $object->getPath());
     }
 
+    /**
+     * @return array
+     */
     public function constructorAndGetHttpOnlyTestDataProvider()
     {
         return [
@@ -104,6 +107,9 @@ public function testGetSecure($isSecure, $metadata, $expected, $callNum = 1)
         $this->assertEquals($expected, $object->getSecure());
     }
 
+    /**
+     * @return array
+     */
     public function getSecureDataProvider()
     {
         return [
@@ -160,6 +166,9 @@ public function testToArray($isSecure, $metadata, $expected, $callNum = 1)
         $this->assertEquals($expected, $object->__toArray());
     }
 
+    /**
+     * @return array
+     */
     public function toArrayDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Stdlib/Test/Unit/DateTime/TimezoneTest.php b/lib/internal/Magento/Framework/Stdlib/Test/Unit/DateTime/TimezoneTest.php
index efe2dca4a1d10..c51f598fa305e 100644
--- a/lib/internal/Magento/Framework/Stdlib/Test/Unit/DateTime/TimezoneTest.php
+++ b/lib/internal/Magento/Framework/Stdlib/Test/Unit/DateTime/TimezoneTest.php
@@ -50,6 +50,9 @@ public function testDate($date, $locale, $expectedTimestamp)
         $this->assertEquals($expectedTimestamp, $date->getTimestamp());
     }
 
+    /**
+     * @return array
+     */
     public function dateDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Test/Unit/ArchiveTest.php b/lib/internal/Magento/Framework/Test/Unit/ArchiveTest.php
index db9f0feb1b37a..afee925772e75 100644
--- a/lib/internal/Magento/Framework/Test/Unit/ArchiveTest.php
+++ b/lib/internal/Magento/Framework/Test/Unit/ArchiveTest.php
@@ -64,6 +64,9 @@ public function testIsArchive($file, $isArchive)
         $this->assertEquals($isArchive, $this->archive->isArchive($file));
     }
 
+    /**
+     * @return array
+     */
     public function isArchiveProvider()
     {
         return [
@@ -98,6 +101,9 @@ public function testIsTar($file, $isArchive)
         $this->assertEquals($isArchive, $this->archive->isTar($file));
     }
 
+    /**
+     * @return array
+     */
     public function isTarProvider()
     {
         return [
@@ -143,6 +149,9 @@ public function testPackUnpackGzBz($destinationFile, $extensionRequired)
         $this->assertStringStartsWith($this->destinationDir, $this->unpacked);
     }
 
+    /**
+     * @return array
+     */
     public function destinationProvider()
     {
         return [
@@ -200,6 +209,9 @@ public function testExtract($destinationFile, $extensionRequired)
         $this->assertStringStartsWith($this->destinationDir, $this->unpacked);
     }
 
+    /**
+     * @return array
+     */
     public function tarProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Test/Unit/FlagTest.php b/lib/internal/Magento/Framework/Test/Unit/FlagTest.php
index 1e35a012ff60b..a7265583306ca 100644
--- a/lib/internal/Magento/Framework/Test/Unit/FlagTest.php
+++ b/lib/internal/Magento/Framework/Test/Unit/FlagTest.php
@@ -23,6 +23,9 @@ protected function setUp()
         $this->createInstance($data);
     }
 
+    /**
+     * @param array $data
+     */
     protected function createInstance(array $data = [])
     {
         $eventManager = $this->getMock('Magento\Framework\Event\Manager', ['dispatch'], [], '', false, false);
diff --git a/lib/internal/Magento/Framework/Test/Unit/Message/PhraseFactoryTest.php b/lib/internal/Magento/Framework/Test/Unit/Message/PhraseFactoryTest.php
index 9e59e6a844539..fe60494a9e62c 100644
--- a/lib/internal/Magento/Framework/Test/Unit/Message/PhraseFactoryTest.php
+++ b/lib/internal/Magento/Framework/Test/Unit/Message/PhraseFactoryTest.php
@@ -33,6 +33,9 @@ public function testCreate($mainMessage, $subMessages, $separator, $expectedResu
         $this->assertEquals($expectedResult, $result);
     }
 
+    /**
+     * @return array
+     */
     public function dataProvider()
     {
         $subMessage1 = new Error('go jogging');
diff --git a/lib/internal/Magento/Framework/Test/Unit/ObjectTest.php b/lib/internal/Magento/Framework/Test/Unit/ObjectTest.php
index 625a1102f9dab..c274503bdf915 100644
--- a/lib/internal/Magento/Framework/Test/Unit/ObjectTest.php
+++ b/lib/internal/Magento/Framework/Test/Unit/ObjectTest.php
@@ -366,6 +366,9 @@ public function testUnderscore($input, $expectedOutput)
         $this->assertEquals($expectedOutput, $output);
     }
 
+    /**
+     * @return array
+     */
     public function underscoreDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Test/Unit/ShellTest.php b/lib/internal/Magento/Framework/Test/Unit/ShellTest.php
index b185bbd68c3ff..42b16af34af67 100644
--- a/lib/internal/Magento/Framework/Test/Unit/ShellTest.php
+++ b/lib/internal/Magento/Framework/Test/Unit/ShellTest.php
@@ -83,6 +83,9 @@ public function testExecuteLog($command, $commandArgs, $expectedResult, $expecte
         );
     }
 
+    /**
+     * @return array
+     */
     public function executeDataProvider()
     {
         // backtick symbol (`) has to be replaced with environment-dependent quote character
diff --git a/lib/internal/Magento/Framework/Test/Unit/TranslateTest.php b/lib/internal/Magento/Framework/Test/Unit/TranslateTest.php
index cac16773c989b..5ca91b2d05101 100644
--- a/lib/internal/Magento/Framework/Test/Unit/TranslateTest.php
+++ b/lib/internal/Magento/Framework/Test/Unit/TranslateTest.php
@@ -121,6 +121,9 @@ public function testLoadDataCachedTranslation($area, $forceReload, $cachedData)
         $this->assertEquals($cachedData, $this->translate->getData());
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderLoadDataCachedTranslation()
     {
         $cachedData = ['cached 1' => 'translated 1', 'cached 2' => 'translated 2'];
@@ -216,6 +219,9 @@ public function testLoadData($area, $forceReload)
         $this->assertEquals($expected, $this->translate->getData());
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderForTestLoadData()
     {
         return [
@@ -243,6 +249,9 @@ public function testGetData($data, $result)
         $this->assertEquals($result, $this->translate->getData());
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderForTestGetData()
     {
         $data = ['original 1' => 'translated 1', 'original 2' => 'translated 2'];
diff --git a/lib/internal/Magento/Framework/Translate/Test/Unit/InlineTest.php b/lib/internal/Magento/Framework/Translate/Test/Unit/InlineTest.php
index 19b83aac6cc5f..12bea7f541513 100644
--- a/lib/internal/Magento/Framework/Translate/Test/Unit/InlineTest.php
+++ b/lib/internal/Magento/Framework/Translate/Test/Unit/InlineTest.php
@@ -92,6 +92,9 @@ public function testIsAllowed($isEnabled, $isActive, $isDevAllowed, $result)
         $this->assertEquals($result, $model->isAllowed());
     }
 
+    /**
+     * @return array
+     */
     public function isAllowedDataProvider()
     {
         return [
@@ -144,6 +147,9 @@ public function testProcessResponseBodyStripInline($body, $expected)
         $this->assertEquals($body, $expected);
     }
 
+    /**
+     * @return array
+     */
     public function processResponseBodyStripInlineDataProvider()
     {
         return [
@@ -210,6 +216,9 @@ public function testProcessResponseBody($scope, $body, $expected)
         $this->assertEquals($body, $expected);
     }
 
+    /**
+     * @return array
+     */
     public function processResponseBodyDataProvider()
     {
         return [
@@ -272,6 +281,9 @@ public function testProcessResponseBodyGetInlineScript($scope, $body, $expected)
         $this->assertEquals($body, $expected);
     }
 
+    /**
+     * @return array
+     */
     public function processResponseBodyGetInlineScriptDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Unserialize/Test/Unit/UnserializeTest.php b/lib/internal/Magento/Framework/Unserialize/Test/Unit/UnserializeTest.php
index cca250e7eef23..258866cc982cd 100644
--- a/lib/internal/Magento/Framework/Unserialize/Test/Unit/UnserializeTest.php
+++ b/lib/internal/Magento/Framework/Unserialize/Test/Unit/UnserializeTest.php
@@ -36,6 +36,9 @@ public function testUnserializeObject($serialized)
         $this->assertFalse($this->unserialize->unserialize($serialized));
     }
 
+    /**
+     * @return array
+     */
     public function serializedObjectDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Url/Test/Unit/Helper/DataTest.php b/lib/internal/Magento/Framework/Url/Test/Unit/Helper/DataTest.php
index b0c5e11592d95..bea8bfcfad6d6 100644
--- a/lib/internal/Magento/Framework/Url/Test/Unit/Helper/DataTest.php
+++ b/lib/internal/Magento/Framework/Url/Test/Unit/Helper/DataTest.php
@@ -79,6 +79,9 @@ public function testGetEncodedUrl($url, $callNum)
         $this->assertEquals($encodedUrl, $helper->getEncodedUrl($url));
     }
 
+    /**
+     * @return array
+     */
     public function getEncodedUrlDataProvider()
     {
         return [
@@ -98,6 +101,9 @@ public function testAddRequestParam($param, $expected)
         $this->assertEquals($expected, $helper->addRequestParam('http://example.com', $param));
     }
 
+    /**
+     * @return array
+     */
     public function addRequestParamDataProvider()
     {
         return [
@@ -145,6 +151,9 @@ public function testRemoveRequestParam($paramKey, $expected)
         $this->assertEquals($expected, $helper->removeRequestParam($url, $paramKey));
     }
 
+    /**
+     * @return array
+     */
     public function removeRequestParamDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Url/Test/Unit/SecurityInfoTest.php b/lib/internal/Magento/Framework/Url/Test/Unit/SecurityInfoTest.php
index 0cb5bac48509d..d2d3463d181b0 100644
--- a/lib/internal/Magento/Framework/Url/Test/Unit/SecurityInfoTest.php
+++ b/lib/internal/Magento/Framework/Url/Test/Unit/SecurityInfoTest.php
@@ -32,6 +32,9 @@ public function testIsSecureChecksIfUrlIsInSecureList($url, $expected)
         $this->assertEquals($expected, $this->_model->isSecure($url));
     }
 
+    /**
+     * @return array
+     */
     public function secureUrlDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Validator/Test/Unit/ObjectTest.php b/lib/internal/Magento/Framework/Validator/Test/Unit/ObjectTest.php
index 8179ba7e342fc..5662e40683831 100644
--- a/lib/internal/Magento/Framework/Validator/Test/Unit/ObjectTest.php
+++ b/lib/internal/Magento/Framework/Validator/Test/Unit/ObjectTest.php
@@ -92,6 +92,9 @@ public function testIsValid(array $inputEntityData, array $expectedErrors)
         }
     }
 
+    /**
+     * @return array
+     */
     public function validateDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/View/Test/Unit/Asset/File/FallbackContextTest.php b/lib/internal/Magento/Framework/View/Test/Unit/Asset/File/FallbackContextTest.php
index 05006b82b7b31..d43dd6e8c47fc 100644
--- a/lib/internal/Magento/Framework/View/Test/Unit/Asset/File/FallbackContextTest.php
+++ b/lib/internal/Magento/Framework/View/Test/Unit/Asset/File/FallbackContextTest.php
@@ -53,6 +53,9 @@ public function testGetConfigPath(
         $this->assertEquals($expectedResult, $this->fallbackContext->getConfigPath());
     }
 
+    /**
+     * @return array
+     */
     public function getConfigPathDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/View/Test/Unit/Asset/FileTest.php b/lib/internal/Magento/Framework/View/Test/Unit/Asset/FileTest.php
index 6f781171f15c9..0d391fc865307 100644
--- a/lib/internal/Magento/Framework/View/Test/Unit/Asset/FileTest.php
+++ b/lib/internal/Magento/Framework/View/Test/Unit/Asset/FileTest.php
@@ -134,6 +134,9 @@ public function testGetContent($content)
         $this->assertEquals($content, $this->object->getContent()); // no in-memory caching for content
     }
 
+    /**
+     * @return array
+     */
     public function getContentDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/View/Test/Unit/Asset/MergeServiceTest.php b/lib/internal/Magento/Framework/View/Test/Unit/Asset/MergeServiceTest.php
index c920360971abb..eafdd5b5e44bc 100644
--- a/lib/internal/Magento/Framework/View/Test/Unit/Asset/MergeServiceTest.php
+++ b/lib/internal/Magento/Framework/View/Test/Unit/Asset/MergeServiceTest.php
@@ -117,6 +117,9 @@ public function testGetMergedAssets(array $assets, $contentType, $appMode, $merg
         $this->assertSame($mergedAsset, $this->object->getMergedAssets($assets, $contentType));
     }
 
+    /**
+     * @return array
+     */
     public static function getMergedAssetsDataProvider()
     {
         $jsAssets = [
diff --git a/lib/internal/Magento/Framework/View/Test/Unit/ContextTest.php b/lib/internal/Magento/Framework/View/Test/Unit/ContextTest.php
index 8047442510fef..4d39251340b98 100644
--- a/lib/internal/Magento/Framework/View/Test/Unit/ContextTest.php
+++ b/lib/internal/Magento/Framework/View/Test/Unit/ContextTest.php
@@ -221,6 +221,9 @@ public function testGetAcceptType($headerAccept, $acceptType)
         $this->assertEquals($acceptType, $this->context->getAcceptType());
     }
 
+    /**
+     * @return array
+     */
     public function getAcceptTypeDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/View/Test/Unit/DataSourcePoolTest.php b/lib/internal/Magento/Framework/View/Test/Unit/DataSourcePoolTest.php
index d7342a202486f..18d0f02c2a261 100644
--- a/lib/internal/Magento/Framework/View/Test/Unit/DataSourcePoolTest.php
+++ b/lib/internal/Magento/Framework/View/Test/Unit/DataSourcePoolTest.php
@@ -46,6 +46,10 @@ public function testAddWithException()
         $this->dataSourcePool->add('DataSourcePoolTestBlock', 'NotExistingBlockClass');
     }
 
+    /**
+     * @param $blockClass
+     * @return mixed
+     */
     protected function createBlock($blockClass)
     {
         $block = $this->getMock('Magento\Framework\View\Element\BlockInterface');
diff --git a/lib/internal/Magento/Framework/View/Test/Unit/Element/Html/LinkTest.php b/lib/internal/Magento/Framework/View/Test/Unit/Element/Html/LinkTest.php
index f4e3e6ebf56e2..4841ec3e2671d 100644
--- a/lib/internal/Magento/Framework/View/Test/Unit/Element/Html/LinkTest.php
+++ b/lib/internal/Magento/Framework/View/Test/Unit/Element/Html/LinkTest.php
@@ -35,6 +35,9 @@ public function testGetLinkAttributes($link, $expected)
         $this->assertEquals($expected, $link->getLinkAttributes());
     }
 
+    /**
+     * @return array
+     */
     public function getLinkAttributesDataProvider()
     {
         $objectManagerHelper = new \Magento\Framework\TestFramework\Unit\Helper\ObjectManager($this);
diff --git a/lib/internal/Magento/Framework/View/Test/Unit/Element/Js/CookieTest.php b/lib/internal/Magento/Framework/View/Test/Unit/Element/Js/CookieTest.php
index 8291c1dbfa9b4..f6c80ff28cdf8 100644
--- a/lib/internal/Magento/Framework/View/Test/Unit/Element/Js/CookieTest.php
+++ b/lib/internal/Magento/Framework/View/Test/Unit/Element/Js/CookieTest.php
@@ -83,6 +83,9 @@ public function testGetDomain($domain, $isIp, $expectedResult)
         $this->assertEquals($expectedResult, $result);
     }
 
+    /**
+     * @return array
+     */
     public static function domainDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/View/Test/Unit/Element/Text/TextList/ItemTest.php b/lib/internal/Magento/Framework/View/Test/Unit/Element/Text/TextList/ItemTest.php
index d29fc50b10396..efa2c30cde0a2 100644
--- a/lib/internal/Magento/Framework/View/Test/Unit/Element/Text/TextList/ItemTest.php
+++ b/lib/internal/Magento/Framework/View/Test/Unit/Element/Text/TextList/ItemTest.php
@@ -56,6 +56,9 @@ public function testToHtml($liParams, $attrName, $attrValue, $innerText)
         ], $this->item->toHtml());
     }
 
+    /**
+     * @return array
+     */
     public function toHtmlDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/View/Test/Unit/Element/Text/TextList/LinkTest.php b/lib/internal/Magento/Framework/View/Test/Unit/Element/Text/TextList/LinkTest.php
index 395bc9fec086d..15070facd5945 100644
--- a/lib/internal/Magento/Framework/View/Test/Unit/Element/Text/TextList/LinkTest.php
+++ b/lib/internal/Magento/Framework/View/Test/Unit/Element/Text/TextList/LinkTest.php
@@ -62,6 +62,9 @@ public function testToHtml($liParams, $liAttr, $aParams, $aAttr, $innerText, $af
         ], $this->link->toHtml());
     }
 
+    /**
+     * @return array
+     */
     public function toHtmlDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/View/Test/Unit/File/Collector/Decorator/ModuleDependencyTest.php b/lib/internal/Magento/Framework/View/Test/Unit/File/Collector/Decorator/ModuleDependencyTest.php
index 6c0b8487b465b..dfb77bb3b58c4 100644
--- a/lib/internal/Magento/Framework/View/Test/Unit/File/Collector/Decorator/ModuleDependencyTest.php
+++ b/lib/internal/Magento/Framework/View/Test/Unit/File/Collector/Decorator/ModuleDependencyTest.php
@@ -54,6 +54,9 @@ public function testGetFiles(array $fixtureFiles, array $expectedFiles, $message
         $this->assertSame($expectedFiles, $this->_model->getFiles($theme, '*.xml'), $message);
     }
 
+    /**
+     * @return array
+     */
     public function getFilesDataProvider()
     {
         $fileOne = new \Magento\Framework\View\File('b.xml', 'Fixture_ModuleB');
diff --git a/lib/internal/Magento/Framework/View/Test/Unit/Layout/Argument/Interpreter/HelperMethodTest.php b/lib/internal/Magento/Framework/View/Test/Unit/Layout/Argument/Interpreter/HelperMethodTest.php
index 62203b72dd391..8dba7c9ce753b 100644
--- a/lib/internal/Magento/Framework/View/Test/Unit/Layout/Argument/Interpreter/HelperMethodTest.php
+++ b/lib/internal/Magento/Framework/View/Test/Unit/Layout/Argument/Interpreter/HelperMethodTest.php
@@ -59,6 +59,10 @@ public function testEvaluate()
         $this->assertSame($expected, $actual);
     }
 
+    /**
+     * @param $input
+     * @return string
+     */
     public function help($input)
     {
         $this->assertSame('some text (evaluated)', $input);
@@ -78,6 +82,9 @@ public function testEvaluateException($helperMethod, $expectedExceptionMessage)
         $this->_model->evaluate($input);
     }
 
+    /**
+     * @return array
+     */
     public function evaluateExceptionDataProvider()
     {
         $nonExistingHelper = __CLASS__ . '::non_existing';
diff --git a/lib/internal/Magento/Framework/View/Test/Unit/Layout/Argument/Interpreter/NamedParamsTest.php b/lib/internal/Magento/Framework/View/Test/Unit/Layout/Argument/Interpreter/NamedParamsTest.php
index f9ad4d387c991..857ca1a7c496f 100644
--- a/lib/internal/Magento/Framework/View/Test/Unit/Layout/Argument/Interpreter/NamedParamsTest.php
+++ b/lib/internal/Magento/Framework/View/Test/Unit/Layout/Argument/Interpreter/NamedParamsTest.php
@@ -64,6 +64,9 @@ public function testEvaluateWrongParam($input, $expectedExceptionMessage)
         $this->_model->evaluate($input);
     }
 
+    /**
+     * @return array
+     */
     public function evaluateWrongParamDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/View/Test/Unit/Layout/Argument/Interpreter/ObjectTest.php b/lib/internal/Magento/Framework/View/Test/Unit/Layout/Argument/Interpreter/ObjectTest.php
index 1d7232d7ada41..89b7bd7c27982 100644
--- a/lib/internal/Magento/Framework/View/Test/Unit/Layout/Argument/Interpreter/ObjectTest.php
+++ b/lib/internal/Magento/Framework/View/Test/Unit/Layout/Argument/Interpreter/ObjectTest.php
@@ -67,6 +67,9 @@ function ($className) use ($self) {
         $this->_model->evaluate($input);
     }
 
+    /**
+     * @return array
+     */
     public function evaluateWrongClassDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/View/Test/Unit/Layout/Argument/Interpreter/OptionsTest.php b/lib/internal/Magento/Framework/View/Test/Unit/Layout/Argument/Interpreter/OptionsTest.php
index 51b34ea810662..b8a924ef93cd7 100644
--- a/lib/internal/Magento/Framework/View/Test/Unit/Layout/Argument/Interpreter/OptionsTest.php
+++ b/lib/internal/Magento/Framework/View/Test/Unit/Layout/Argument/Interpreter/OptionsTest.php
@@ -71,6 +71,9 @@ public function testEvaluateWrongModel($input, $expectedException, $expectedExce
         $this->_model->evaluate($input);
     }
 
+    /**
+     * @return array
+     */
     public function evaluateWrongModelDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/View/Test/Unit/Layout/BuilderFactoryTest.php b/lib/internal/Magento/Framework/View/Test/Unit/Layout/BuilderFactoryTest.php
index 8d615441399b0..89a32603fe670 100644
--- a/lib/internal/Magento/Framework/View/Test/Unit/Layout/BuilderFactoryTest.php
+++ b/lib/internal/Magento/Framework/View/Test/Unit/Layout/BuilderFactoryTest.php
@@ -65,6 +65,9 @@ public function testCreate($type, $arguments, $layoutBuilderClass)
         $this->buildFactory->create($type, $arguments);
     }
 
+    /**
+     * @return array
+     */
     public function createDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/View/Test/Unit/Layout/ElementTest.php b/lib/internal/Magento/Framework/View/Test/Unit/Layout/ElementTest.php
index 70daa9676685d..86968293fa988 100644
--- a/lib/internal/Magento/Framework/View/Test/Unit/Layout/ElementTest.php
+++ b/lib/internal/Magento/Framework/View/Test/Unit/Layout/ElementTest.php
@@ -20,6 +20,9 @@ public function testGetElementName($xml, $name)
         $this->assertEquals($name, $model->getElementName());
     }
 
+    /**
+     * @return array
+     */
     public function elementNameDataProvider()
     {
         return [
@@ -31,6 +34,9 @@ public function elementNameDataProvider()
         ];
     }
 
+    /**
+     * @return array
+     */
     public function cacheableDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/View/Test/Unit/Layout/Reader/UiComponentTest.php b/lib/internal/Magento/Framework/View/Test/Unit/Layout/Reader/UiComponentTest.php
index a0646ff365a8b..12cdb16e0d9b1 100644
--- a/lib/internal/Magento/Framework/View/Test/Unit/Layout/Reader/UiComponentTest.php
+++ b/lib/internal/Magento/Framework/View/Test/Unit/Layout/Reader/UiComponentTest.php
@@ -77,6 +77,9 @@ public function testInterpret($element)
         $this->model->interpret($this->context, $element);
     }
 
+    /**
+     * @return array
+     */
     public function interpretDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/View/Test/Unit/Page/ConfigTest.php b/lib/internal/Magento/Framework/View/Test/Unit/Page/ConfigTest.php
index 6f4bf8da7bb57..4862816a9efe6 100644
--- a/lib/internal/Magento/Framework/View/Test/Unit/Page/ConfigTest.php
+++ b/lib/internal/Magento/Framework/View/Test/Unit/Page/ConfigTest.php
@@ -282,6 +282,9 @@ public function testAddPageAsset($file, $properties, $name, $expectedName)
         );
     }
 
+    /**
+     * @return array
+     */
     public function pageAssetDataProvider()
     {
         return [
@@ -321,6 +324,9 @@ public function testAddRemotePageAsset($url, $contentType, $properties, $name, $
         );
     }
 
+    /**
+     * @return array
+     */
     public function remotePageAssetDataProvider()
     {
         return [
@@ -377,6 +383,9 @@ public function testElementAttribute($elementType, $attribute, $value)
         $this->assertEquals($value, $this->model->getElementAttribute($elementType, $attribute));
     }
 
+    /**
+     * @return array
+     */
     public function elementAttributeDataProvider()
     {
         return [
@@ -411,6 +420,9 @@ public function testElementAttributeException($elementType, $attribute, $value)
         $this->model->setElementAttribute($elementType, $attribute, $value);
     }
 
+    /**
+     * @return array
+     */
     public function elementAttributeExceptionDataProvider()
     {
         return [
@@ -446,6 +458,9 @@ public function testElementAttributes($elementType, $attributes)
         $this->assertEquals($attributes, $this->model->getElementAttributes($elementType));
     }
 
+    /**
+     * @return array
+     */
     public function elementAttributesDataProvider()
     {
         return [
@@ -470,6 +485,9 @@ public function testPageLayout($handle)
         $this->assertEquals($handle, $this->model->getPageLayout());
     }
 
+    /**
+     * @return array
+     */
     public function pageLayoutDataProvider()
     {
         return [
@@ -530,6 +548,9 @@ public function testGetIncludes($isAvailable, $result)
         $this->assertEquals($result, $model->getIncludes());
     }
 
+    /**
+     * @return array
+     */
     public function getIncludesDataProvider()
     {
         return [
diff --git a/lib/internal/Magento/Framework/Webapi/Test/Unit/RequestTest.php b/lib/internal/Magento/Framework/Webapi/Test/Unit/RequestTest.php
index 212477a2e0bdc..a03a18ac33fe7 100644
--- a/lib/internal/Magento/Framework/Webapi/Test/Unit/RequestTest.php
+++ b/lib/internal/Magento/Framework/Webapi/Test/Unit/RequestTest.php
@@ -38,6 +38,9 @@ public function testGetRequestedServicesSuccess($requestParamServices, $expected
         $this->assertEquals($expectedResult, $this->request->getRequestedServices());
     }
 
+    /**
+     * @return array
+     */
     public function providerTestGetRequestedServicesSuccess()
     {
         $testModuleA = 'testModule1AllSoapAndRestV1';
diff --git a/lib/internal/Magento/Framework/Webapi/Test/Unit/ServiceInputProcessorTest.php b/lib/internal/Magento/Framework/Webapi/Test/Unit/ServiceInputProcessorTest.php
index 94c9d9cebdc79..7ddf86edec540 100644
--- a/lib/internal/Magento/Framework/Webapi/Test/Unit/ServiceInputProcessorTest.php
+++ b/lib/internal/Magento/Framework/Webapi/Test/Unit/ServiceInputProcessorTest.php
@@ -518,6 +518,9 @@ public function testCustomAttributesExceptions($inputData)
         );
     }
 
+    /**
+     * @return array
+     */
     public function invalidCustomAttributesDataProvider()
     {
         return [
diff --git a/setup/src/Magento/Setup/Test/Unit/Console/Command/DbStatusCommandTest.php b/setup/src/Magento/Setup/Test/Unit/Console/Command/DbStatusCommandTest.php
index c8ffd5ea47b02..3246a43c10189 100644
--- a/setup/src/Magento/Setup/Test/Unit/Console/Command/DbStatusCommandTest.php
+++ b/setup/src/Magento/Setup/Test/Unit/Console/Command/DbStatusCommandTest.php
@@ -60,6 +60,9 @@ public function testExecute(array $outdatedInfo, $expectedMessage)
         $this->assertStringMatchesFormat($expectedMessage, $tester->getDisplay());
     }
 
+    /**
+     * @return array
+     */
     public function executeDataProvider()
     {
         return [
diff --git a/setup/src/Magento/Setup/Test/Unit/Console/Command/UninstallCommandTest.php b/setup/src/Magento/Setup/Test/Unit/Console/Command/UninstallCommandTest.php
index 21fa10379a751..d51e3c40d1058 100644
--- a/setup/src/Magento/Setup/Test/Unit/Console/Command/UninstallCommandTest.php
+++ b/setup/src/Magento/Setup/Test/Unit/Console/Command/UninstallCommandTest.php
@@ -51,6 +51,9 @@ public function testExecuteInteractionNo()
         $this->checkInteraction(false);
     }
 
+    /**
+     * @param $answer
+     */
     public function checkInteraction($answer)
     {
         $question = $this->getMock('Symfony\Component\Console\Helper\QuestionHelper', [], [], '', false);
diff --git a/setup/src/Magento/Setup/Test/Unit/Console/CompilerPreparationTest.php b/setup/src/Magento/Setup/Test/Unit/Console/CompilerPreparationTest.php
index 979407662aaf1..69263497fd6c4 100644
--- a/setup/src/Magento/Setup/Test/Unit/Console/CompilerPreparationTest.php
+++ b/setup/src/Magento/Setup/Test/Unit/Console/CompilerPreparationTest.php
@@ -74,6 +74,9 @@ public function testClearGenerationDirWhenNeeded($commandName, $isCompileCommand
         $this->model->handleCompilerEnvironment();
     }
 
+    /**
+     * @return array
+     */
     public function commandNameDataProvider()
     {
         return [
diff --git a/setup/src/Magento/Setup/Test/Unit/Model/ConfigOptionsListTest.php b/setup/src/Magento/Setup/Test/Unit/Model/ConfigOptionsListTest.php
index 0b2bd10fd0f50..7e8872def5da4 100644
--- a/setup/src/Magento/Setup/Test/Unit/Model/ConfigOptionsListTest.php
+++ b/setup/src/Magento/Setup/Test/Unit/Model/ConfigOptionsListTest.php
@@ -169,6 +169,9 @@ public function testValidateCacheHosts($hosts, $expectedError)
 
     }
 
+    /**
+     * @return array
+     */
     public function validateCacheHostsDataProvider()
     {
         return [
diff --git a/setup/src/Magento/Setup/Test/Unit/Model/Cron/JobComponentUninstallTest.php b/setup/src/Magento/Setup/Test/Unit/Model/Cron/JobComponentUninstallTest.php
index f1b27407af851..e766fd42cbcf8 100644
--- a/setup/src/Magento/Setup/Test/Unit/Model/Cron/JobComponentUninstallTest.php
+++ b/setup/src/Magento/Setup/Test/Unit/Model/Cron/JobComponentUninstallTest.php
@@ -282,6 +282,9 @@ public function testExecuteWrongFormat(array $params)
         $this->job->execute();
     }
 
+    /**
+     * @return array
+     */
     public function executeWrongFormatDataProvider()
     {
         return [
diff --git a/setup/src/Magento/Setup/Test/Unit/Model/Cron/JobFactoryTest.php b/setup/src/Magento/Setup/Test/Unit/Model/Cron/JobFactoryTest.php
index 00d53368e50de..3fe5836c086c9 100644
--- a/setup/src/Magento/Setup/Test/Unit/Model/Cron/JobFactoryTest.php
+++ b/setup/src/Magento/Setup/Test/Unit/Model/Cron/JobFactoryTest.php
@@ -206,16 +206,25 @@ public function testMaintenanceModeDisable()
 // functions to override native php functions
 namespace Magento\Setup\Model\Cron;
 
+/**
+ * @return string
+ */
 function fopen()
 {
     return 'filestream';
 }
 
+/**
+ * @return bool
+ */
 function is_resource()
 {
     return true;
 }
 
+/**
+ * @return string
+ */
 function get_resource_type()
 {
     return 'stream';
diff --git a/setup/src/Magento/Setup/Test/Unit/Model/Cron/ReadinessCheckTest.php b/setup/src/Magento/Setup/Test/Unit/Model/Cron/ReadinessCheckTest.php
index a415378a32854..7919f773ebe0a 100644
--- a/setup/src/Magento/Setup/Test/Unit/Model/Cron/ReadinessCheckTest.php
+++ b/setup/src/Magento/Setup/Test/Unit/Model/Cron/ReadinessCheckTest.php
@@ -202,6 +202,9 @@ public function testRunReadinessCheckLastTimestamp()
 
 namespace Magento\Setup\Model\Cron;
 
+/**
+ * @return int
+ */
 function time()
 {
     return 100;
diff --git a/setup/src/Magento/Setup/Test/Unit/Model/Description/Mixin/BrakeMixinTest.php b/setup/src/Magento/Setup/Test/Unit/Model/Description/Mixin/BrakeMixinTest.php
index 0da08d41feb4e..d36cba0b80dcc 100644
--- a/setup/src/Magento/Setup/Test/Unit/Model/Description/Mixin/BrakeMixinTest.php
+++ b/setup/src/Magento/Setup/Test/Unit/Model/Description/Mixin/BrakeMixinTest.php
@@ -25,6 +25,9 @@ public function testApply($subject, $expectedResult)
         $this->assertEquals($expectedResult, $this->mixin->apply($subject));
     }
 
+    /**
+     * @return array
+     */
     public function getTestData()
     {
         return [
diff --git a/setup/src/Magento/Setup/Test/Unit/Model/Description/Mixin/HeaderMixinTest.php b/setup/src/Magento/Setup/Test/Unit/Model/Description/Mixin/HeaderMixinTest.php
index f603937c26570..c2a8886e79a7b 100644
--- a/setup/src/Magento/Setup/Test/Unit/Model/Description/Mixin/HeaderMixinTest.php
+++ b/setup/src/Magento/Setup/Test/Unit/Model/Description/Mixin/HeaderMixinTest.php
@@ -25,6 +25,9 @@ public function testApply($subject, $expectedResult)
         $this->assertEquals($expectedResult, $this->mixin->apply($subject));
     }
 
+    /**
+     * @return array
+     */
     public function getTestData()
     {
         return [
diff --git a/setup/src/Magento/Setup/Test/Unit/Model/Description/Mixin/Helper/RandomWordSelectorTest.php b/setup/src/Magento/Setup/Test/Unit/Model/Description/Mixin/Helper/RandomWordSelectorTest.php
index f9aa4a09fa9a8..3e6108e43b716 100644
--- a/setup/src/Magento/Setup/Test/Unit/Model/Description/Mixin/Helper/RandomWordSelectorTest.php
+++ b/setup/src/Magento/Setup/Test/Unit/Model/Description/Mixin/Helper/RandomWordSelectorTest.php
@@ -34,6 +34,9 @@ public function testRandomSelector($fixtureSource, $fixtureCount)
         }
     }
 
+    /**
+     * @return array
+     */
     public function getTestData()
     {
         return [
diff --git a/setup/src/Magento/Setup/Test/Unit/Model/Description/Mixin/Helper/WordWrapperTest.php b/setup/src/Magento/Setup/Test/Unit/Model/Description/Mixin/Helper/WordWrapperTest.php
index df34973e2c1fa..736a03cde9aa2 100644
--- a/setup/src/Magento/Setup/Test/Unit/Model/Description/Mixin/Helper/WordWrapperTest.php
+++ b/setup/src/Magento/Setup/Test/Unit/Model/Description/Mixin/Helper/WordWrapperTest.php
@@ -30,6 +30,9 @@ public function testWrapping($inputData, $expectedResult)
         );
     }
 
+    /**
+     * @return array
+     */
     public function getTestData()
     {
         return [
diff --git a/setup/src/Magento/Setup/Test/Unit/Model/Description/Mixin/ParagraphMixinTest.php b/setup/src/Magento/Setup/Test/Unit/Model/Description/Mixin/ParagraphMixinTest.php
index 0c2c7b3d89717..3e1d65242d545 100644
--- a/setup/src/Magento/Setup/Test/Unit/Model/Description/Mixin/ParagraphMixinTest.php
+++ b/setup/src/Magento/Setup/Test/Unit/Model/Description/Mixin/ParagraphMixinTest.php
@@ -25,6 +25,9 @@ public function testApply($subject, $expectedResult)
         $this->assertEquals($expectedResult, $this->mixin->apply($subject));
     }
 
+    /**
+     * @return array
+     */
     public function getTestData()
     {
         return [
diff --git a/setup/src/Magento/Setup/Test/Unit/Model/Grid/TypeMapperTest.php b/setup/src/Magento/Setup/Test/Unit/Model/Grid/TypeMapperTest.php
index 3033182d29623..ebf203f729145 100644
--- a/setup/src/Magento/Setup/Test/Unit/Model/Grid/TypeMapperTest.php
+++ b/setup/src/Magento/Setup/Test/Unit/Model/Grid/TypeMapperTest.php
@@ -39,6 +39,9 @@ public function testMap($packageType, $expected)
         );
     }
 
+    /**
+     * @return array
+     */
     public function mapDataProvider()
     {
         return [
diff --git a/setup/src/Magento/Setup/Test/Unit/Model/ObjectManagerProviderTest.php b/setup/src/Magento/Setup/Test/Unit/Model/ObjectManagerProviderTest.php
index 755821ea0a557..dadc2bdcf51c9 100644
--- a/setup/src/Magento/Setup/Test/Unit/Model/ObjectManagerProviderTest.php
+++ b/setup/src/Magento/Setup/Test/Unit/Model/ObjectManagerProviderTest.php
@@ -83,6 +83,9 @@ public function testGet()
         $this->assertInstanceOf(ObjectManagerInterface::class, $this->model->get());
     }
 
+    /**
+     * @return mixed
+     */
     private function getCommandListMock()
     {
         $commandMock = $this->getMockBuilder(Command::class)->disableOriginalConstructor()->getMock();
diff --git a/setup/src/Magento/Setup/Test/Unit/Model/PayloadValidatorTest.php b/setup/src/Magento/Setup/Test/Unit/Model/PayloadValidatorTest.php
index ee27ce7b449ee..59fcc6c7c97cf 100644
--- a/setup/src/Magento/Setup/Test/Unit/Model/PayloadValidatorTest.php
+++ b/setup/src/Magento/Setup/Test/Unit/Model/PayloadValidatorTest.php
@@ -38,6 +38,9 @@ public function testValidatePayLoad($type, $has, $moduleExists)
         $this->assertEquals('', $this->model->validatePayload($type));
     }
 
+    /**
+     * @return array
+     */
     public function validatePayLoadDataProvider()
     {
         return [
@@ -61,6 +64,9 @@ public function testValidatePayLoadNegativeCases($type, $has, $moduleExists, $er
         $this->assertStringStartsWith($errorMessage, $this->model->validatePayload($type));
     }
 
+    /**
+     * @return array
+     */
     public function validatePayLoadNegativeCasesDataProvider()
     {
         return [
diff --git a/setup/src/Magento/Setup/Test/Unit/Model/PhpReadinessCheckTest.php b/setup/src/Magento/Setup/Test/Unit/Model/PhpReadinessCheckTest.php
index 5c2ad73de9da0..115578d1d108b 100644
--- a/setup/src/Magento/Setup/Test/Unit/Model/PhpReadinessCheckTest.php
+++ b/setup/src/Magento/Setup/Test/Unit/Model/PhpReadinessCheckTest.php
@@ -394,6 +394,10 @@ protected function isPhp7OrHhvm()
 
 namespace Magento\Setup\Model;
 
+/**
+ * @param $param
+ * @return int|string
+ */
 function ini_get($param)
 {
     if ($param === 'xdebug.max_nesting_level') {
diff --git a/setup/src/Magento/Setup/Test/Unit/Model/WebLoggerTest.php b/setup/src/Magento/Setup/Test/Unit/Model/WebLoggerTest.php
index e85b3fcaf88c9..0f10566d27459 100644
--- a/setup/src/Magento/Setup/Test/Unit/Model/WebLoggerTest.php
+++ b/setup/src/Magento/Setup/Test/Unit/Model/WebLoggerTest.php
@@ -184,6 +184,9 @@ public function testClearNotExist()
         $this->webLogger->clear();
     }
 
+    /**
+     * @return string
+     */
     public static function readLog()
     {
         return self::$log;
@@ -202,6 +205,9 @@ public static function deleteLog()
         self::$log = '';
     }
 
+    /**
+     * @return bool
+     */
     public static function isExist()
     {
         return self::$log != '';
diff --git a/setup/src/Magento/Setup/Test/Unit/Module/Di/Code/Reader/ClassReaderDecoratorTest.php b/setup/src/Magento/Setup/Test/Unit/Module/Di/Code/Reader/ClassReaderDecoratorTest.php
index df517f97ec89c..66a4d784170ad 100644
--- a/setup/src/Magento/Setup/Test/Unit/Module/Di/Code/Reader/ClassReaderDecoratorTest.php
+++ b/setup/src/Magento/Setup/Test/Unit/Module/Di/Code/Reader/ClassReaderDecoratorTest.php
@@ -46,6 +46,9 @@ public function testGetConstructor($expectation, $className, $willReturn)
         );
     }
 
+    /**
+     * @return array
+     */
     public function getConstructorDataProvider()
     {
         return [
diff --git a/setup/src/Magento/Setup/Test/Unit/Module/Di/_files/app/code/Magento/SomeModule/Helper/Test.php b/setup/src/Magento/Setup/Test/Unit/Module/Di/_files/app/code/Magento/SomeModule/Helper/Test.php
index 2738e50b7eef9..696c4f5af7b12 100644
--- a/setup/src/Magento/Setup/Test/Unit/Module/Di/_files/app/code/Magento/SomeModule/Helper/Test.php
+++ b/setup/src/Magento/Setup/Test/Unit/Module/Di/_files/app/code/Magento/SomeModule/Helper/Test.php
@@ -25,6 +25,12 @@ class Test
      */
     protected $_newElementFactory;
 
+    /**
+     * Test constructor.
+     * @param \Magento\SomeModule\Module\Factory $factory
+     * @param \Magento\SomeModule\Element\Factory $elementFactory
+     * @param \Magento\SomeModule\ElementFactory $rightElementFactory
+     */
     public function __construct(
         \Magento\SomeModule\Module\Factory $factory,
         \Magento\SomeModule\Element\Factory $elementFactory,
diff --git a/setup/src/Magento/Setup/Test/Unit/Module/I18n/Parser/AbstractParserTest.php b/setup/src/Magento/Setup/Test/Unit/Module/I18n/Parser/AbstractParserTest.php
index 72ea95f99778f..53b72614c3357 100644
--- a/setup/src/Magento/Setup/Test/Unit/Module/I18n/Parser/AbstractParserTest.php
+++ b/setup/src/Magento/Setup/Test/Unit/Module/I18n/Parser/AbstractParserTest.php
@@ -35,6 +35,9 @@ public function testValidateOptions($options, $message)
         $this->_parserMock->parse($options);
     }
 
+    /**
+     * @return array
+     */
     public function dataProviderForValidateOptions()
     {
         return [
diff --git a/setup/src/Magento/Setup/Test/Unit/Module/Setup/SetupCacheTest.php b/setup/src/Magento/Setup/Test/Unit/Module/Setup/SetupCacheTest.php
index 7e43aa9076dd7..d2d6abe55ff98 100644
--- a/setup/src/Magento/Setup/Test/Unit/Module/Setup/SetupCacheTest.php
+++ b/setup/src/Magento/Setup/Test/Unit/Module/Setup/SetupCacheTest.php
@@ -88,6 +88,9 @@ public function testHas($table, $parentId, $rowId, $field, $expected)
         $this->assertSame($expected, $this->object->has($table, $parentId, $rowId, $field));
     }
 
+    /**
+     * @return array
+     */
     public function hasDataProvider()
     {
         return [
diff --git a/setup/src/Magento/Setup/Test/Unit/Mvc/Bootstrap/InitParamListenerTest.php b/setup/src/Magento/Setup/Test/Unit/Mvc/Bootstrap/InitParamListenerTest.php
index 88ff6c994e2d7..2492318d45bc1 100644
--- a/setup/src/Magento/Setup/Test/Unit/Mvc/Bootstrap/InitParamListenerTest.php
+++ b/setup/src/Magento/Setup/Test/Unit/Mvc/Bootstrap/InitParamListenerTest.php
@@ -139,6 +139,9 @@ public function testCreateService($zfAppConfig, $env, $cliParam, $expectedArray)
         $this->assertEquals($expectedArray, $listener->createService($serviceLocator));
     }
 
+    /**
+     * @return array
+     */
     public function createServiceDataProvider()
     {
         return [