Update to drupal 8.0.0-rc1. For more information, see https://www.drupal.org/node/2582663

vendor/symfony/http-kernel/Tests/CacheClearer/ChainCacheClearerTest.php

@@ -0,0 +1,57 @@
+<?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\HttpKernel\Tests\CacheClearer;
+
+use Symfony\Component\HttpKernel\CacheClearer\ChainCacheClearer;
+
+class ChainCacheClearerTest extends \PHPUnit_Framework_TestCase
+{
+    protected static $cacheDir;
+
+    public static function setUpBeforeClass()
+    {
+        self::$cacheDir = tempnam(sys_get_temp_dir(), 'sf2_cache_clearer_dir');
+    }
+
+    public static function tearDownAfterClass()
+    {
+        @unlink(self::$cacheDir);
+    }
+
+    public function testInjectClearersInConstructor()
+    {
+        $clearer = $this->getMockClearer();
+        $clearer
+            ->expects($this->once())
+            ->method('clear');
+
+        $chainClearer = new ChainCacheClearer(array($clearer));
+        $chainClearer->clear(self::$cacheDir);
+    }
+
+    public function testInjectClearerUsingAdd()
+    {
+        $clearer = $this->getMockClearer();
+        $clearer
+            ->expects($this->once())
+            ->method('clear');
+
+        $chainClearer = new ChainCacheClearer();
+        $chainClearer->add($clearer);
+        $chainClearer->clear(self::$cacheDir);
+    }
+
+    protected function getMockClearer()
+    {
+        return $this->getMock('Symfony\Component\HttpKernel\CacheClearer\CacheClearerInterface');
+    }
+}