prophesize(SessionInterface::class); $session->start()->willReturn(TRUE); $session->save()->shouldBeCalled(); $bigpipe = new BigPipe( $this->prophesize(RendererInterface::class)->reveal(), $session->reveal(), $this->prophesize(RequestStack::class)->reveal(), $this->prophesize(HttpKernelInterface::class)->reveal(), $this->prophesize(EventDispatcherInterface::class)->reveal(), $this->prophesize(ConfigFactoryInterface::class)->reveal(), $this->prophesize(MessengerInterface::class)->reveal(), $this->prophesize(RequestContext::class)->reveal(), $this->prophesize(LoggerInterface::class)->reveal(), ); $response = new BigPipeResponse(new HtmlResponse()); // Add many placeholders. $many_placeholders = []; for ($i = 0; $i < 400; $i++) { $many_placeholders[$this->randomMachineName(80)] = $this->randomMachineName(80); } $attachments = [ 'library' => [], 'big_pipe_nojs_placeholders' => $many_placeholders, ]; $response->setAttachments($attachments); // Construct minimal HTML response. $content = 'contentscript-bottom'; $response->setContent($content); // Capture the result to avoid PHPUnit complaining. ob_start(); $bigpipe->sendContent($response); $result = ob_get_clean(); $this->assertNotEmpty($result); } }