FiberPlaceholderTest.php

Same filename in other branches
  1. 11.x core/modules/big_pipe/tests/src/Unit/Render/FiberPlaceholderTest.php

Namespace

Drupal\Tests\big_pipe\Unit\Render

File

core/modules/big_pipe/tests/src/Unit/Render/FiberPlaceholderTest.php

View source 
<?php

declare (strict_types=1);
namespace Drupal\Tests\big_pipe\Unit\Render;

use Drupal\big_pipe\Render\BigPipe;
use Drupal\big_pipe\Render\BigPipeResponse;
use Drupal\Core\Config\ConfigFactoryInterface;
use Drupal\Core\Messenger\MessengerInterface;
use Drupal\Core\Render\ElementInfoManagerInterface;
use Drupal\Core\Render\HtmlResponse;
use Drupal\Core\Render\PlaceholderGeneratorInterface;
use Drupal\Core\Render\RenderCacheInterface;
use Drupal\Core\Render\Renderer;
use Drupal\Core\Security\TrustedCallbackInterface;
use Drupal\Core\Theme\ThemeManagerInterface;
use Drupal\Core\Utility\CallableResolver;
use Drupal\Tests\UnitTestCase;
use Prophecy\Argument;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\RequestStack;
use Symfony\Component\HttpFoundation\Session\SessionInterface;
use Symfony\Component\HttpKernel\HttpKernelInterface;
use Symfony\Contracts\EventDispatcher\EventDispatcherInterface;

/**
 * @coversDefaultClass \Drupal\big_pipe\Render\BigPipe
 * @group big_pipe
 */
class FiberPlaceholderTest extends UnitTestCase {
    
    /**
     * @covers \Drupal\big_pipe\Render\BigPipe::sendPlaceholders
     */
    public function testLongPlaceholderFiberSuspendingLoop() : void {
        $request_stack = $this->prophesize(RequestStack::class);
        $request_stack->getMainRequest()
            ->willReturn(new Request());
        $request_stack->getCurrentRequest()
            ->willReturn(new Request());
        $callableResolver = $this->prophesize(CallableResolver::class);
        $callableResolver->getCallableFromDefinition(Argument::any())
            ->willReturn([
            TurtleLazyBuilder::class,
            'turtle',
        ]);
        $renderer = new Renderer($callableResolver->reveal(), $this->prophesize(ThemeManagerInterface::class)
            ->reveal(), $this->prophesize(ElementInfoManagerInterface::class)
            ->reveal(), $this->prophesize(PlaceholderGeneratorInterface::class)
            ->reveal(), $this->prophesize(RenderCacheInterface::class)
            ->reveal(), $request_stack->reveal(), [
            'required_cache_contexts' => [
                'languages:language_interface',
                'theme',
            ],
        ]);
        $session = $this->prophesize(SessionInterface::class);
        $session->start()
            ->willReturn(TRUE);
        $bigpipe = new BigPipe($renderer, $session->reveal(), $request_stack->reveal(), $this->prophesize(HttpKernelInterface::class)
            ->reveal(), $this->createMock(EventDispatcherInterface::class), $this->prophesize(ConfigFactoryInterface::class)
            ->reveal(), $this->prophesize(MessengerInterface::class)
            ->reveal());
        $response = new BigPipeResponse(new HtmlResponse());
        $attachments = [
            'library' => [],
            'drupalSettings' => [
                'ajaxPageState' => [],
            ],
            'big_pipe_placeholders' => [
                // cspell:disable-next-line
'callback=%5CDrupal%5CTests%5Cbig_pipe%5CUnit%5CRender%5CTurtleLazyBuilder%3A%3Aturtle&amp;&amp;token=uhKFNfT4eF449_W-kDQX8E5z4yHyt0-nSHUlwaGAQeU' => [
                    '#lazy_builder' => [
                        '\\Drupal\\Tests\\big_pipe\\Unit\\Render\\TurtleLazyBuilder::turtle',
                        [],
                    ],
                ],
            ],
        ];
        $response->setAttachments($attachments);
        // Construct minimal HTML response.
        // cspell:disable-next-line
        $content = '<html><body><span data-big-pipe-placeholder-id="callback=%5CDrupal%5CTests%5Cbig_pipe%5CUnit%5CRender%5CTurtleLazyBuilder%3A%3Aturtle&amp;&amp;token=uhKFNfT4eF449_W-kDQX8E5z4yHyt0-nSHUlwaGAQeU"></body></html>';
        $response->setContent($content);
        // Capture the result to avoid PHPUnit complaining.
        ob_start();
        $fiber = new \Fiber(function () use ($bigpipe, $response) {
            $bigpipe->sendContent($response);
        });
        $fiber->start();
        $this->assertFalse($fiber->isTerminated(), 'Placeholder fibers with long execution time supposed to return control before terminating');
        ob_get_clean();
    }

}
class TurtleLazyBuilder implements TrustedCallbackInterface {
    
    /**
     * #lazy_builder callback.
     *
     * Suspends its own execution twice to simulate long operation.
     *
     * @return array
     */
    public static function turtle() : array {
        if (\Fiber::getCurrent() !== NULL) {
            \Fiber::suspend();
        }
        if (\Fiber::getCurrent() !== NULL) {
            \Fiber::suspend();
        }
        return [
            '#markup' => '<span>Turtle is finally here. But how?</span>',
        ];
    }
    
    /**
     * {@inheritdoc}
     */
    public static function trustedCallbacks() {
        return [
            'turtle',
        ];
    }

}

Classes

Title Deprecated Summary
FiberPlaceholderTest @coversDefaultClass \Drupal\big_pipe\Render\BigPipe @group big_pipe
TurtleLazyBuilder

Buggy or inaccurate documentation? Please file an issue. Need support? Need help programming? Connect with the Drupal community.