function it_stores_the_requests_identifier_if_in_the_request_headers(HttpKernelInterface $kernel, RequestIdentifierStorage $requestIdentifierStorage)
 {
     $event = new GetResponseEvent($kernel->getWrappedObject(), Request::create('/', 'GET', [], [], [], ['HTTP_X-Request-Identifier' => '12345']), HttpKernelInterface::MASTER_REQUEST);
     $requestIdentifierStorage->setRequestIdentifier(StringRequestIdentifier::fromString('12345'))->shouldBeCalled();
     $this->onKernelRequest($event);
 }