public function testMirrorWithParams()
 {
     $masterRequest = new Request();
     $masterRequest->server->set('REQUEST_URI', 'mail/123/456');
     $application = new Application(new \ArrayObject(), $masterRequest);
     $application->mirror('mail/:id/:index', 'contact/{id}/{id}');
     $application->get('contact/:id/:index', function (Request $request) {
         return $request->getRequestUri();
     });
     $this->expectOutputString('contact/123/123');
     $application->run();
 }