FragmentListener example

use Symfony\Component\HttpKernel\EventListener\FragmentListener;
use Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException;
use Symfony\Component\HttpKernel\HttpKernelInterface;
use Symfony\Component\HttpKernel\UriSigner;

class FragmentListenerTest extends TestCase
{
    public function testOnlyTriggeredOnFragmentRoute()
    {
        $request = Request::create('http://example.com/foo?_path=foo%3Dbar%26_controller%3Dfoo');

        $listener = new FragmentListener(new UriSigner('foo'));
        $event = $this->createRequestEvent($request);

        $expected = $request->attributes->all();

        $listener->onKernelRequest($event);

        $this->assertEquals($expected, $request->attributes->all());
        $this->assertTrue($request->query->has('_path'));
    }

    public function testOnlyTriggeredIfControllerWasNotDefinedYet()
    {