Symfony\Component\HttpKernel\Tests\EventListener\SurrogateListenerTest::testFilterDoesNothingForSubRequests PHP Method

    public function testFilterDoesNothingForSubRequests()
    {
        $dispatcher = new EventDispatcher();
        $kernel = $this->getMockBuilder('Symfony\Component\HttpKernel\HttpKernelInterface')->getMock();
        $response = new Response('foo <esi:include src="" />');
        $listener = new SurrogateListener(new Esi());

        $dispatcher->addListener(KernelEvents::RESPONSE, array($listener, 'onKernelResponse'));
        $event = new FilterResponseEvent($kernel, new Request(), HttpKernelInterface::SUB_REQUEST, $response);
        $dispatcher->dispatch(KernelEvents::RESPONSE, $event);

        $this->assertEquals('', $event->getResponse()->headers->get('Surrogate-Control'));
    }