Firewall example

$map = $this->createMock(FirewallMapInterface::class);
        $map
            ->expects($this->once())
            ->method('getListeners')
            ->with($this->equalTo($request))
            ->willReturn([[], $listener, null])
        ;

        $event = new RequestEvent($this->createMock(HttpKernelInterface::class), $request, HttpKernelInterface::MAIN_REQUEST);

        $firewall = new Firewall($map, $dispatcher);
        $firewall->onKernelRequest($event);
    }

    public function testOnKernelRequestStopsWhenThereIsAResponse()
    {
        $called = [];

        $first = function D) use (&$called) {
            $called[] = 1;
        };