BigPipeResponseAttachmentsProcessorTest.php in Drupal 8

Namespace

Drupal\Tests\big_pipe\Unit\Render

File

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

<?php

namespace Drupal\Tests\big_pipe\Unit\Render;

use Drupal\big_pipe\Render\BigPipeResponse;
use Drupal\big_pipe\Render\BigPipeResponseAttachmentsProcessor;
use Drupal\Core\Ajax\AjaxResponse;
use Drupal\Core\Asset\AssetCollectionRendererInterface;
use Drupal\Core\Asset\AssetResolverInterface;
use Drupal\Core\Config\ConfigFactoryInterface;
use Drupal\Core\Extension\ModuleHandlerInterface;
use Drupal\Core\Render\AttachmentsInterface;
use Drupal\Core\Render\AttachmentsResponseProcessorInterface;
use Drupal\Core\Render\HtmlResponse;
use Drupal\Core\Render\RendererInterface;
use Drupal\Tests\UnitTestCase;
use Prophecy\Argument;
use Prophecy\Prophecy\ObjectProphecy;
use Symfony\Component\HttpFoundation\RequestStack;

/**
 * @coversDefaultClass \Drupal\big_pipe\Render\BigPipeResponseAttachmentsProcessor
 * @group big_pipe
 */
class BigPipeResponseAttachmentsProcessorTest extends UnitTestCase {

  /**
   * @covers ::processAttachments
   *
   * @dataProvider nonHtmlResponseProvider
   */
  public function testNonHtmlResponse($response_class) {
    $big_pipe_response_attachments_processor = $this
      ->createBigPipeResponseAttachmentsProcessor($this
      ->prophesize(AttachmentsResponseProcessorInterface::class));
    $non_html_response = new $response_class();
    $this
      ->expectException(\AssertionError::class);
    $big_pipe_response_attachments_processor
      ->processAttachments($non_html_response);
  }
  public function nonHtmlResponseProvider() {
    return [
      'AjaxResponse, which implements AttachmentsInterface' => [
        AjaxResponse::class,
      ],
      'A dummy that implements AttachmentsInterface' => [
        get_class($this
          ->prophesize(AttachmentsInterface::class)
          ->reveal()),
      ],
    ];
  }

  /**
   * @covers ::processAttachments
   *
   * @dataProvider attachmentsProvider
   */
  public function testHtmlResponse(array $attachments) {
    $big_pipe_response = new BigPipeResponse(new HtmlResponse('original'));
    $big_pipe_response
      ->setAttachments($attachments);

    // This mock is the main expectation of this test: verify that the decorated
    // service (that is this mock) never receives BigPipe placeholder
    // attachments, because it doesn't know (nor should it) how to handle them.
    $html_response_attachments_processor = $this
      ->prophesize(AttachmentsResponseProcessorInterface::class);
    $html_response_attachments_processor
      ->processAttachments(Argument::that(function ($response) {
      return $response instanceof HtmlResponse && empty(array_intersect([
        'big_pipe_placeholders',
        'big_pipe_nojs_placeholders',
      ], array_keys($response
        ->getAttachments())));
    }))
      ->will(function ($args) {

      /** @var \Symfony\Component\HttpFoundation\Response|\Drupal\Core\Render\AttachmentsInterface $response */
      $response = $args[0];

      // Simulate its actual behavior.
      $attachments = array_diff_key($response
        ->getAttachments(), [
        'html_response_attachment_placeholders' => TRUE,
      ]);
      $response
        ->setContent('processed');
      $response
        ->setAttachments($attachments);
      return $response;
    })
      ->shouldBeCalled();
    $big_pipe_response_attachments_processor = $this
      ->createBigPipeResponseAttachmentsProcessor($html_response_attachments_processor);
    $processed_big_pipe_response = $big_pipe_response_attachments_processor
      ->processAttachments($big_pipe_response);

    // The secondary expectation of this test: the original (passed in) response
    // object remains unchanged, the processed (returned) response object has
    // the expected values.
    $this
      ->assertSame($attachments, $big_pipe_response
      ->getAttachments(), 'Attachments of original response object MUST NOT be changed.');
    $this
      ->assertEquals('original', $big_pipe_response
      ->getContent(), 'Content of original response object MUST NOT be changed.');
    $this
      ->assertEquals(array_diff_key($attachments, [
      'html_response_attachment_placeholders' => TRUE,
    ]), $processed_big_pipe_response
      ->getAttachments(), 'Attachments of returned (processed) response object MUST be changed.');
    $this
      ->assertEquals('processed', $processed_big_pipe_response
      ->getContent(), 'Content of returned (processed) response object MUST be changed.');
  }
  public function attachmentsProvider() {
    $typical_cases = [
      'no attachments' => [
        [],
      ],
      'libraries' => [
        [
          'library' => [
            'core/drupal',
          ],
        ],
      ],
      'libraries + drupalSettings' => [
        [
          'library' => [
            'core/drupal',
          ],
          'drupalSettings' => [
            'foo' => 'bar',
          ],
        ],
      ],
    ];
    $official_attachment_types = [
      'html_head',
      'feed',
      'html_head_link',
      'http_header',
      'library',
      'placeholders',
      'drupalSettings',
      'html_response_attachment_placeholders',
    ];
    $official_attachments_with_random_values = [];
    foreach ($official_attachment_types as $type) {
      $official_attachments_with_random_values[$type] = $this
        ->randomMachineName();
    }
    $random_attachments = [
      'random' . $this
        ->randomMachineName() => $this
        ->randomMachineName(),
    ];
    $edge_cases = [
      'all official attachment types, with random assigned values, even if technically not valid, to prove BigPipeResponseAttachmentsProcessor is a perfect decorator' => [
        $official_attachments_with_random_values,
      ],
      'random attachment type (unofficial), with random assigned value, to prove BigPipeResponseAttachmentsProcessor is a perfect decorator' => [
        $random_attachments,
      ],
    ];
    $big_pipe_placeholder_attachments = [
      'big_pipe_placeholders' => [
        $this
          ->randomMachineName(),
      ],
    ];
    $big_pipe_nojs_placeholder_attachments = [
      'big_pipe_nojs_placeholders' => [
        $this
          ->randomMachineName(),
      ],
    ];
    $big_pipe_cases = [
      'only big_pipe_placeholders' => [
        $big_pipe_placeholder_attachments,
      ],
      'only big_pipe_nojs_placeholders' => [
        $big_pipe_nojs_placeholder_attachments,
      ],
      'big_pipe_placeholders + big_pipe_nojs_placeholders' => [
        $big_pipe_placeholder_attachments + $big_pipe_nojs_placeholder_attachments,
      ],
    ];
    $combined_cases = [
      'all official attachment types + big_pipe_placeholders + big_pipe_nojs_placeholders' => [
        $official_attachments_with_random_values + $big_pipe_placeholder_attachments + $big_pipe_nojs_placeholder_attachments,
      ],
      'random attachment types + big_pipe_placeholders + big_pipe_nojs_placeholders' => [
        $random_attachments + $big_pipe_placeholder_attachments + $big_pipe_nojs_placeholder_attachments,
      ],
    ];
    return $typical_cases + $edge_cases + $big_pipe_cases + $combined_cases;
  }

  /**
   * Creates a BigPipeResponseAttachmentsProcessor with mostly dummies.
   *
   * @param \Prophecy\Prophecy\ObjectProphecy $decorated_html_response_attachments_processor
   *   An object prophecy implementing AttachmentsResponseProcessorInterface.
   *
   * @return \Drupal\big_pipe\Render\BigPipeResponseAttachmentsProcessor
   *   The BigPipeResponseAttachmentsProcessor to test.
   */
  protected function createBigPipeResponseAttachmentsProcessor(ObjectProphecy $decorated_html_response_attachments_processor) {
    return new BigPipeResponseAttachmentsProcessor($decorated_html_response_attachments_processor
      ->reveal(), $this
      ->prophesize(AssetResolverInterface::class)
      ->reveal(), $this
      ->prophesize(ConfigFactoryInterface::class)
      ->reveal(), $this
      ->prophesize(AssetCollectionRendererInterface::class)
      ->reveal(), $this
      ->prophesize(AssetCollectionRendererInterface::class)
      ->reveal(), $this
      ->prophesize(RequestStack::class)
      ->reveal(), $this
      ->prophesize(RendererInterface::class)
      ->reveal(), $this
      ->prophesize(ModuleHandlerInterface::class)
      ->reveal());
  }

}

Classes

Name	Description
BigPipeResponseAttachmentsProcessorTest	@coversDefaultClass \Drupal\big_pipe\Render\BigPipeResponseAttachmentsProcessor @group big_pipe