Added a test case to demonstrate the fatal error occuring when a Bundle implementing BundleInterface only is registered in the kernel.

src/Symfony/Bundle/FrameworkBundle/Tests/Console/ApplicationTest.php

@@ -0,0 +1,35 @@
+<?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\Console;
+
+use Symfony\Bundle\FrameworkBundle\Tests\TestCase;
+use Symfony\Bundle\FrameworkBundle\Console\Application;
+use Symfony\Component\Console\Input\ArrayInput;
+use Symfony\Component\Console\Output\NullOutput;
+
+class ApplicationTest extends TestCase
+{
+    public function testBundleInterfaceImplementation()
+    {
+        $bundle = $this->getMock("Symfony\Component\HttpKernel\Bundle\BundleInterface");
+
+        $kernel = $this->getMock("Symfony\Component\HttpKernel\KernelInterface");
+        $kernel
+            ->expects($this->any())
+            ->method('getBundles')
+            ->will($this->returnValue(array($bundle)))
+        ;
+
+        $application = new Application($kernel);
+        $application->doRun(new ArrayInput(array('list')), new NullOutput());
+    }
+}