Merge pull request #25 from Pixelrobin/phpunit-update

Update phpunit to v9

Author: Nate Wiebe

composer.json

@@ -28,7 +28,8 @@
         "php": ">=7.3"
     },
     "require-dev": {
-        "phpunit/phpunit": "7"
+        "ext-json": "*",
+        "phpunit/phpunit": "^9.5"
     },
     "scripts": {
         "test": "phpunit --verbose tests"

tests/FeatherTest.php

@@ -4,7 +4,22 @@
 
 class FeatherTest extends TestCase
 {
-    protected function setUp()
+    /**
+     * @var \Feather\Icons
+     */
+    private $icons;
+
+    /**
+     * @var array
+     */
+    private $XMLTestData;
+
+    /**
+     * @var array
+     */
+    private $AttributeTestData;
+
+    protected function setUp(): void
     {
         $this->icons = new Feather\Icons();