urlResolver = $this->prophesize(ShortUrlResolverInterface::class); $this->requestTracker = $this->prophesize(RequestTrackerInterface::class); $this->action = new PixelAction($this->urlResolver->reveal(), $this->requestTracker->reveal()); } /** @test */ public function imageIsReturned(): void { $shortCode = 'abc123'; $this->urlResolver->resolveEnabledShortUrl( ShortUrlIdentifier::fromShortCodeAndDomain($shortCode, ''), )->willReturn(ShortUrl::withLongUrl('http://domain.com/foo/bar')) ->shouldBeCalledOnce(); $this->requestTracker->trackIfApplicable(Argument::cetera())->shouldBeCalledOnce(); $request = (new ServerRequest())->withAttribute('shortCode', $shortCode); $response = $this->action->process($request, $this->prophesize(RequestHandlerInterface::class)->reveal()); self::assertInstanceOf(PixelResponse::class, $response); self::assertEquals(200, $response->getStatusCode()); self::assertEquals('image/gif', $response->getHeaderLine('content-type')); } }