[FrameworkBundle] Added tests for the DelegatingEngine.

src/Symfony/Bundle/FrameworkBundle/Tests/Templating/DelegatingEngineTest.php

@@ -0,0 +1,83 @@
+<?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\Bundle\FrameworkBundle\Tests\Templating;
+
+use Symfony\Bundle\FrameworkBundle\Templating\DelegatingEngine;
+
+class DelegatingEngineTest extends \PHPUnit_Framework_TestCase
+{
+    public function testSupportsRetrievesEngineFromTheContainer()
+    {
+        $container = $this->getContainerMock(array(
+            'engine.first' => $this->getEngineMock('template.php', false),
+            'engine.second' => $this->getEngineMock('template.php', true)
+        ));
+
+        $delegatingEngine = new DelegatingEngine($container, array('engine.first', 'engine.second'));
+
+        $this->assertTrue($delegatingEngine->supports('template.php'));
+    }
+
+    public function testRenderResponse()
+    {
+        $response = $this->getMock('Symfony\Component\HttpFoundation\Response');
+        $engine = $this->getFrameworkEngineMock('template.php', true);
+        $engine->expects($this->once())
+            ->method('renderResponse')
+            ->with('template.php', array('foo' => 'bar'))
+            ->will($this->returnValue($response));
+        $container = $this->getContainerMock(array('engine' => $engine));
+
+        $delegatingEngine = new DelegatingEngine($container, array('engine'));
+
+        $this->assertSame($response, $delegatingEngine->renderResponse('template.php', array('foo' => 'bar')));
+    }
+
+    private function getEngineMock($template, $supports)
+    {
+        $engine = $this->getMock('Symfony\Component\Templating\EngineInterface');
+
+        $engine->expects($this->once())
+            ->method('supports')
+            ->with($template)
+            ->will($this->returnValue($supports));
+
+        return $engine;
+    }
+
+    private function getFrameworkEngineMock($template, $supports)
+    {
+        $engine = $this->getMock('Symfony\Bundle\FrameworkBundle\Templating\EngineInterface');
+
+        $engine->expects($this->once())
+            ->method('supports')
+            ->with($template)
+            ->will($this->returnValue($supports));
+
+        return $engine;
+    }
+
+    private function getContainerMock($services)
+    {
+        $container = $this->getMock('Symfony\Component\DependencyInjection\ContainerInterface');
+
+        $i = 0;
+        foreach ($services as $id => $service) {
+            $container->expects($this->at($i++))
+                ->method('get')
+                ->with($id)
+                ->will($this->returnValue($service));
+        }
+
+        return $container;
+    }
+}