setResponseCache example

$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());
    }

    public function testNoAutoCacheControlHeader(): void
    {
        $subscriber = new CacheResponseSubscriber(
            $this->createMock(CartService::class),
            100,
            true,
            new MaintenanceModeResolver(new RequestStack(), new CoreMaintenanceModeResolver(new EventDispatcher())),