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

vendor/symfony/dependency-injection/Tests/Compiler/ResolveReferencesToAliasesPassTest.php

@@ -0,0 +1,67 @@
+<?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\DependencyInjection\Tests\Compiler;
+
+use Symfony\Component\DependencyInjection\Reference;
+use Symfony\Component\DependencyInjection\Compiler\ResolveReferencesToAliasesPass;
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+
+class ResolveReferencesToAliasesPassTest extends \PHPUnit_Framework_TestCase
+{
+    public function testProcess()
+    {
+        $container = new ContainerBuilder();
+        $container->setAlias('bar', 'foo');
+        $def = $container
+            ->register('moo')
+            ->setArguments(array(new Reference('bar')))
+        ;
+
+        $this->process($container);
+
+        $arguments = $def->getArguments();
+        $this->assertEquals('foo', (string) $arguments[0]);
+    }
+
+    public function testProcessRecursively()
+    {
+        $container = new ContainerBuilder();
+        $container->setAlias('bar', 'foo');
+        $container->setAlias('moo', 'bar');
+        $def = $container
+            ->register('foobar')
+            ->setArguments(array(new Reference('moo')))
+        ;
+
+        $this->process($container);
+
+        $arguments = $def->getArguments();
+        $this->assertEquals('foo', (string) $arguments[0]);
+    }
+
+    /**
+     * @expectedException \Symfony\Component\DependencyInjection\Exception\ServiceCircularReferenceException
+     */
+    public function testAliasCircularReference()
+    {
+        $container = new ContainerBuilder();
+        $container->setAlias('bar', 'foo');
+        $container->setAlias('foo', 'bar');
+        $this->process($container);
+    }
+
+    protected function process(ContainerBuilder $container)
+    {
+        $pass = new ResolveReferencesToAliasesPass();
+        $pass->process($container);
+    }
+}