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BigPipeSessionlessStrategyTest.php in Sessionless BigPipe 8

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tests/src/Unit/Render/Placeholder/BigPipeSessionlessStrategyTest.php
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<?php

namespace Drupal\Tests\big_pipe_sessionless\Unit\Render\Placeholder;

use Drupal\big_pipe_test\BigPipePlaceholderTestCases;
use Drupal\big_pipe_sessionless\Render\Placeholder\BigPipeSessionlessStrategy;
use Drupal\Core\Routing\RouteMatchInterface;
use Drupal\Core\Session\SessionConfigurationInterface;
use Drupal\Tests\UnitTestCase;
use Prophecy\Argument;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\RequestStack;
use Symfony\Component\Routing\Route;

/**
 * @coversDefaultClass \Drupal\big_pipe_sessionless\Render\Placeholder\BigPipeSessionlessStrategy
 * @group big_pipe_sessionless
 *
 * @see \Drupal\Tests\big_pipe\Unit\Render\Placeholder\BigPipeStrategyTest
 */
class BigPipeSessionlessStrategyTest extends UnitTestCase {

  /**
   * @covers ::processPlaceholders
   *
   * @dataProvider placeholdersProvider
   */
  public function testProcessPlaceholders(array $placeholders, $method, $route_match_has_no_big_pipe_option, $request_has_session, $request_has_big_pipe_nojs_cookie, array $expected_big_pipe_placeholders) {
    $request = new Request();
    $request
      ->setMethod($method);
    if ($request_has_big_pipe_nojs_cookie) {
      $request->cookies
        ->set(BigPipeSessionlessStrategy::NOJS_COOKIE, 1);
    }
    $request_stack = $this
      ->prophesize(RequestStack::class);
    $request_stack
      ->getCurrentRequest()
      ->willReturn($request);
    $session_configuration = $this
      ->prophesize(SessionConfigurationInterface::class);
    $session_configuration
      ->hasSession(Argument::type(Request::class))
      ->willReturn($request_has_session);
    $route = $this
      ->prophesize(Route::class);
    $route
      ->getOption('_no_big_pipe')
      ->willReturn($route_match_has_no_big_pipe_option);
    $route_match = $this
      ->prophesize(RouteMatchInterface::class);
    $route_match
      ->getRouteObject()
      ->willReturn($route);
    $big_pipe_strategy = new BigPipeSessionlessStrategy($session_configuration
      ->reveal(), $request_stack
      ->reveal(), $route_match
      ->reveal());
    $processed_placeholders = $big_pipe_strategy
      ->processPlaceholders($placeholders);
    if ($request
      ->isMethodCacheable() && !$route_match_has_no_big_pipe_option && !$request_has_session) {
      $this
        ->assertSameSize($expected_big_pipe_placeholders, $processed_placeholders, 'BigPipe is able to deliver all placeholders.');
      foreach (array_keys($placeholders) as $placeholder) {
        $this
          ->assertSame($expected_big_pipe_placeholders[$placeholder], $processed_placeholders[$placeholder], "Verifying how BigPipeStrategy handles the placeholder '{$placeholder}'");
      }
    }
    else {
      $this
        ->assertSame(0, count($processed_placeholders));
    }
  }

  /**
   * @see \Drupal\big_pipe_test\BigPipePlaceholderTestCases
   */
  public function placeholdersProvider() {
    $cases = BigPipePlaceholderTestCases::cases();

    // Generate $placeholders variable as expected by
    // \Drupal\Core\Render\Placeholder\PlaceholderStrategyInterface::processPlaceholders().
    $placeholders = [
      $cases['html']->placeholder => $cases['html']->placeholderRenderArray,
      $cases['html_attribute_value']->placeholder => $cases['html_attribute_value']->placeholderRenderArray,
      $cases['html_attribute_value_subset']->placeholder => $cases['html_attribute_value_subset']->placeholderRenderArray,
      $cases['edge_case__invalid_html']->placeholder => $cases['edge_case__invalid_html']->placeholderRenderArray,
      $cases['edge_case__html_non_lazy_builder']->placeholder => $cases['edge_case__html_non_lazy_builder']->placeholderRenderArray,
      $cases['exception__lazy_builder']->placeholder => $cases['exception__lazy_builder']->placeholderRenderArray,
      $cases['exception__embedded_response']->placeholder => $cases['exception__embedded_response']->placeholderRenderArray,
    ];

    // In the 'no session' cases, BigPipe *always* use no-JS placeholders, so
    // the 'cookies:big_pipe_nojs' cache context is unnecessary.
    $remove_no_js_cookie_cache_context = function (array $render_array) {
      $render_array['#cache']['contexts'] = array_diff($render_array['#cache']['contexts'], [
        'cookies:big_pipe_nojs',
      ]);
      return $render_array;
    };
    return [
      '_no_big_pipe absent, no session, no-JS cookie absent: no-JS BigPipe placeholder used for HTML placeholders' => [
        $placeholders,
        'GET',
        FALSE,
        FALSE,
        FALSE,
        [
          $cases['html']->placeholder => $remove_no_js_cookie_cache_context($cases['html']->bigPipeNoJsPlaceholderRenderArray),
          $cases['html_attribute_value']->placeholder => $remove_no_js_cookie_cache_context($cases['html_attribute_value']->bigPipeNoJsPlaceholderRenderArray),
          $cases['html_attribute_value_subset']->placeholder => $remove_no_js_cookie_cache_context($cases['html_attribute_value_subset']->bigPipeNoJsPlaceholderRenderArray),
          $cases['edge_case__invalid_html']->placeholder => $remove_no_js_cookie_cache_context($cases['edge_case__invalid_html']->bigPipeNoJsPlaceholderRenderArray),
          $cases['edge_case__html_non_lazy_builder']->placeholder => $remove_no_js_cookie_cache_context($cases['edge_case__html_non_lazy_builder']->bigPipeNoJsPlaceholderRenderArray),
          $cases['exception__lazy_builder']->placeholder => $remove_no_js_cookie_cache_context($cases['exception__lazy_builder']->bigPipeNoJsPlaceholderRenderArray),
          $cases['exception__embedded_response']->placeholder => $remove_no_js_cookie_cache_context($cases['exception__embedded_response']->bigPipeNoJsPlaceholderRenderArray),
        ],
      ],
      '_no_big_pipe absent, no session, no-JS cookie present: no-JS BigPipe placeholder used for HTML placeholders' => [
        $placeholders,
        'GET',
        FALSE,
        FALSE,
        TRUE,
        [
          $cases['html']->placeholder => $remove_no_js_cookie_cache_context($cases['html']->bigPipeNoJsPlaceholderRenderArray),
          $cases['html_attribute_value']->placeholder => $remove_no_js_cookie_cache_context($cases['html_attribute_value']->bigPipeNoJsPlaceholderRenderArray),
          $cases['html_attribute_value_subset']->placeholder => $remove_no_js_cookie_cache_context($cases['html_attribute_value_subset']->bigPipeNoJsPlaceholderRenderArray),
          $cases['edge_case__invalid_html']->placeholder => $remove_no_js_cookie_cache_context($cases['edge_case__invalid_html']->bigPipeNoJsPlaceholderRenderArray),
          $cases['edge_case__html_non_lazy_builder']->placeholder => $remove_no_js_cookie_cache_context($cases['edge_case__html_non_lazy_builder']->bigPipeNoJsPlaceholderRenderArray),
          $cases['exception__lazy_builder']->placeholder => $remove_no_js_cookie_cache_context($cases['exception__lazy_builder']->bigPipeNoJsPlaceholderRenderArray),
          $cases['exception__embedded_response']->placeholder => $remove_no_js_cookie_cache_context($cases['exception__embedded_response']->bigPipeNoJsPlaceholderRenderArray),
        ],
      ],
      '_no_big_pipe present, no session, no-JS cookie absent' => [
        $placeholders,
        'GET',
        TRUE,
        FALSE,
        FALSE,
        [],
      ],
      '_no_big_pipe present, no session, no-JS cookie present' => [
        $placeholders,
        'GET',
        TRUE,
        FALSE,
        TRUE,
        [],
      ],
      '_no_big_pipe present, session, no-JS cookie absent' => [
        $placeholders,
        'GET',
        TRUE,
        TRUE,
        FALSE,
        [],
      ],
      '_no_big_pipe present, session, no-JS cookie present' => [
        $placeholders,
        'GET',
        TRUE,
        TRUE,
        TRUE,
        [],
      ],
      '_no_big_pipe absent, session, no-JS cookie absent: (JS-powered) BigPipe placeholder used for HTML placeholders' => [
        $placeholders,
        'GET',
        FALSE,
        TRUE,
        FALSE,
        [],
      ],
      '_no_big_pipe absent, session, no-JS cookie absent: (JS-powered) BigPipe placeholder used for HTML placeholders — but unsafe method' => [
        $placeholders,
        'POST',
        FALSE,
        TRUE,
        FALSE,
        [],
      ],
      '_no_big_pipe absent, session, no-JS cookie present: no-JS BigPipe placeholder used for HTML placeholders' => [
        $placeholders,
        'GET',
        FALSE,
        TRUE,
        TRUE,
        [],
      ],
      '_no_big_pipe absent, session, no-JS cookie present: no-JS BigPipe placeholder used for HTML placeholders — but unsafe method' => [
        $placeholders,
        'POST',
        FALSE,
        TRUE,
        TRUE,
        [],
      ],
    ];
  }

}

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