[DependencyInjection] Tests for AutowirePass with missing parent class

src/Symfony/Component/DependencyInjection/Tests/Compiler/AutowirePassTest.php

@@ -397,6 +397,21 @@ class AutowirePassTest extends \PHPUnit_Framework_TestCase
             $definition->getArguments()
         );
     }
+
+    public function testIgnoreServiceWithClassNotExisting()
+    {
+        $container = new ContainerBuilder();
+
+        $container->register('class_not_exist', __NAMESPACE__.'\OptionalServiceClass');
+
+        $barDefinition = $container->register('bar', __NAMESPACE__.'\Bar');
+        $barDefinition->setAutowired(true);
+
+        $pass = new AutowirePass();
+        $pass->process($container);
+
+        $this->assertTrue($container->hasDefinition('bar'));
+    }
 }
 
 class Foo

src/Symfony/Component/DependencyInjection/Tests/Compiler/OptionalServiceClass.php

@@ -0,0 +1,18 @@
+<?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\Bug\NotExistClass;
+
+class OptionalServiceClass extends NotExistClass
+{
+}