ResponseEvent example

$dispatcher->addListener('frontend.home.page.request', $listener);

        $subscriber = new RouteEventSubscriber($dispatcher);
        $subscriber->request($event);
    }

    public function testResponseEvent(): void
    {
        $request = new Request();
        $request->attributes->set('_route', 'frontend.home.page');

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

        $listener = $this->getMockBuilder(CallableClass::class)->getMock();
        $listener->expects(static::once())->method('__invoke');

        $dispatcher = new EventDispatcher();
        $dispatcher->addListener('frontend.home.page.response', $listener);

        $subscriber = new RouteEventSubscriber($dispatcher);
        $subscriber->response($event);
    }

    

$customer = new CustomerEntity();
        $salesChannelContext = $this->createMock(SalesChannelContext::class);
        $salesChannelContext->method('getCustomer')->willReturn($customer);

        $request = new Request();
        $request->attributes->set(PlatformRequest::ATTRIBUTE_SALES_CHANNEL_CONTEXT_OBJECT, $salesChannelContext);

        $response = new Response();
        $expectedHeaders = $response->headers->all();

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

        $subscriber->setResponseCache($event);

        static::assertSame($expectedHeaders, $response->headers->all());
    }