Symfony\Component\DependencyInjection\Tests\ContainerBuilderTest::testRegisteredAndLoadedExtension PHP Method

    public function testRegisteredAndLoadedExtension()
    {
        $extension = $this->getMockBuilder('Symfony\\Component\\DependencyInjection\\Extension\\ExtensionInterface')->getMock();
        $extension->expects($this->exactly(2))->method('getAlias')->will($this->returnValue('project'));
        $extension->expects($this->once())->method('load')->with(array(array('foo' => 'bar')));

        $container = new ContainerBuilder();
        $container->setResourceTracking(false);
        $container->registerExtension($extension);
        $container->loadFromExtension('project', array('foo' => 'bar'));
        $container->compile();
    }