diff --git a/src/Symfony/Component/HttpFoundation/Tests/Fixtures/common.inc b/src/Symfony/Component/HttpFoundation/Tests/Fixtures/common.inc
new file mode 100644
index 0000000000000..63dbd73b737ad
--- /dev/null
+++ b/src/Symfony/Component/HttpFoundation/Tests/Fixtures/common.inc
@@ -0,0 +1,32 @@
+<?php
+
+$parent = __DIR__;
+while (!@file_exists($parent.'/vendor/autoload.php')) {
+    if (!@file_exists($parent)) {
+        // open_basedir restriction in effect
+        break;
+    }
+    if ($parent === dirname($parent)) {
+        echo "vendor/autoload.php not found\n";
+        exit(1);
+    }
+
+    $parent = dirname($parent);
+}
+
+require $parent.'/vendor/autoload.php';
+
+error_reporting(-1);
+ini_set('html_errors', 0);
+ini_set('display_errors', 1);
+
+header_remove('X-Powered-By');
+header('Content-Type: text/plain; charset=utf-8');
+
+register_shutdown_function(function () {
+    echo "\n";
+    session_write_close();
+    print_r(headers_list());
+    echo "shutdown\n";
+});
+ob_start();
diff --git a/src/Symfony/Component/HttpFoundation/Tests/Fixtures/cookie_samesite_lax.expected b/src/Symfony/Component/HttpFoundation/Tests/Fixtures/cookie_samesite_lax.expected
new file mode 100644
index 0000000000000..cbde2cbfe13f3
--- /dev/null
+++ b/src/Symfony/Component/HttpFoundation/Tests/Fixtures/cookie_samesite_lax.expected
@@ -0,0 +1,9 @@
+
+Array
+(
+    [0] => Content-Type: text/plain; charset=utf-8
+    [1] => Cache-Control: no-cache, private
+    [2] => Date: Sat, 12 Nov 1955 20:04:00 GMT
+    [3] => Set-Cookie: CookieSamesiteLaxTest=LaxValue; path=/; httponly; samesite=lax
+)
+shutdown
diff --git a/src/Symfony/Component/HttpFoundation/Tests/Fixtures/cookie_samesite_lax.php b/src/Symfony/Component/HttpFoundation/Tests/Fixtures/cookie_samesite_lax.php
new file mode 100644
index 0000000000000..487096de4e280
--- /dev/null
+++ b/src/Symfony/Component/HttpFoundation/Tests/Fixtures/cookie_samesite_lax.php
@@ -0,0 +1,11 @@
+<?php
+
+use Symfony\Component\HttpFoundation\Cookie;
+use Symfony\Component\HttpFoundation\Response;
+
+require __DIR__ . '/common.inc';
+
+$r = new Response();
+$r->headers->set('Date', 'Sat, 12 Nov 1955 20:04:00 GMT');
+$r->headers->setCookie(new Cookie('CookieSamesiteLaxTest', 'LaxValue', 0, '/', null, false, true, false, Cookie::SAMESITE_LAX));
+$r->sendHeaders();
diff --git a/src/Symfony/Component/HttpFoundation/Tests/Fixtures/cookie_samesite_strict.expected b/src/Symfony/Component/HttpFoundation/Tests/Fixtures/cookie_samesite_strict.expected
new file mode 100644
index 0000000000000..adc491fd2bc51
--- /dev/null
+++ b/src/Symfony/Component/HttpFoundation/Tests/Fixtures/cookie_samesite_strict.expected
@@ -0,0 +1,9 @@
+
+Array
+(
+    [0] => Content-Type: text/plain; charset=utf-8
+    [1] => Cache-Control: no-cache, private
+    [2] => Date: Sat, 12 Nov 1955 20:04:00 GMT
+    [3] => Set-Cookie: CookieSamesiteStrictTest=StrictValue; path=/; httponly; samesite=strict
+)
+shutdown
diff --git a/src/Symfony/Component/HttpFoundation/Tests/Fixtures/cookie_samesite_strict.php b/src/Symfony/Component/HttpFoundation/Tests/Fixtures/cookie_samesite_strict.php
new file mode 100644
index 0000000000000..512ccd37dc3fd
--- /dev/null
+++ b/src/Symfony/Component/HttpFoundation/Tests/Fixtures/cookie_samesite_strict.php
@@ -0,0 +1,11 @@
+<?php
+
+use Symfony\Component\HttpFoundation\Cookie;
+use Symfony\Component\HttpFoundation\Response;
+
+require __DIR__ . '/common.inc';
+
+$r = new Response();
+$r->headers->set('Date', 'Sat, 12 Nov 1955 20:04:00 GMT');
+$r->headers->setCookie(new Cookie('CookieSamesiteStrictTest', 'StrictValue', 0, '/', null, false, true, false, Cookie::SAMESITE_STRICT));
+$r->sendHeaders();
diff --git a/src/Symfony/Component/HttpFoundation/Tests/RequestFunctionalTest.php b/src/Symfony/Component/HttpFoundation/Tests/RequestFunctionalTest.php
new file mode 100644
index 0000000000000..d1b9b67a79d83
--- /dev/null
+++ b/src/Symfony/Component/HttpFoundation/Tests/RequestFunctionalTest.php
@@ -0,0 +1,55 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\HttpFoundation\Tests;
+
+use PHPUnit\Framework\TestCase;
+
+class RequestFunctionalTest extends TestCase
+{
+    private static $server;
+
+    public static function setUpBeforeClass()
+    {
+        $spec = array(
+            1 => array('file', '/dev/null', 'w'),
+            2 => array('file', '/dev/null', 'w'),
+        );
+        if (!self::$server = @proc_open('exec php -S localhost:8054', $spec, $pipes, __DIR__.'/Fixtures')) {
+            self::markTestSkipped('PHP server unable to start.');
+        }
+        sleep(1);
+    }
+
+    public static function tearDownAfterClass()
+    {
+        if (self::$server) {
+            proc_terminate(self::$server);
+            proc_close(self::$server);
+        }
+    }
+
+    /**
+     * @dataProvider provideCookie
+     */
+    public function testCookieSamesite($fixture)
+    {
+        $result = file_get_contents(sprintf('http://localhost:8054/%s.php', $fixture));
+        $this->assertStringEqualsFile(__DIR__.sprintf('/Fixtures/%s.expected', $fixture), $result);
+    }
+
+    public function provideCookie()
+    {
+        foreach (glob(__DIR__.'/Fixtures/cookie_*.php') as $file) {
+            yield array(pathinfo($file, PATHINFO_FILENAME));
+        }
+    }
+}