You are here

class BigPipeTest in Drupal 8

Same name and namespace in other branches
  1. 9 core/modules/big_pipe/tests/src/Functional/BigPipeTest.php \Drupal\Tests\big_pipe\Functional\BigPipeTest

Tests BigPipe's no-JS detection & response delivery (with and without JS).

Covers:

@group big_pipe

Hierarchy

Expanded class hierarchy of BigPipeTest

File

core/modules/big_pipe/tests/src/Functional/BigPipeTest.php, line 27

Namespace

Drupal\Tests\big_pipe\Functional
View source
class BigPipeTest extends BrowserTestBase {

  /**
   * Modules to enable.
   *
   * @var array
   */
  public static $modules = [
    'big_pipe',
    'big_pipe_test',
    'dblog',
  ];

  /**
   * {@inheritdoc}
   */
  protected $defaultTheme = 'classy';

  /**
   * {@inheritdoc}
   */
  protected $dumpHeaders = TRUE;

  /**
   * {@inheritdoc}
   */
  protected function setUp() {
    parent::setUp();

    // Ignore the <meta> refresh that big_pipe.module sets. It causes a redirect
    // to a page that sets another cookie, which causes WebTestBase to lose the
    // session cookie. To avoid this problem, tests should first call
    // drupalGet() and then call checkForMetaRefresh() manually, and then reset
    // $this->maximumMetaRefreshCount and $this->metaRefreshCount.
    // @see doMetaRefresh()
    $this->maximumMetaRefreshCount = 0;
  }

  /**
   * Performs a single <meta> refresh explicitly.
   *
   * This test disables the automatic <meta> refresh checking, each time it is
   * desired that this runs, a test case must explicitly call this.
   *
   * @see setUp()
   */
  protected function performMetaRefresh() {
    $this->maximumMetaRefreshCount = 1;
    $this
      ->checkForMetaRefresh();
    $this->maximumMetaRefreshCount = 0;
    $this->metaRefreshCount = 0;
  }

  /**
   * Tests BigPipe's no-JS detection.
   *
   * Covers:
   * - big_pipe_page_attachments()
   * - \Drupal\big_pipe\Controller\BigPipeController
   */
  public function testNoJsDetection() {
    $no_js_to_js_markup = '<script>document.cookie = "' . BigPipeStrategy::NOJS_COOKIE . '=1; path=/; expires=Thu, 01 Jan 1970 00:00:00 GMT"</script>';

    // 1. No session (anonymous).
    $this
      ->drupalGet(Url::fromRoute('<front>'));
    $this
      ->assertSessionCookieExists(FALSE);
    $this
      ->assertBigPipeNoJsCookieExists(FALSE);
    $this
      ->assertNoRaw('<noscript><meta http-equiv="Refresh" content="0; URL=');
    $this
      ->assertNoRaw($no_js_to_js_markup);

    // 2. Session (authenticated).
    $this
      ->drupalLogin($this->rootUser);
    $this
      ->assertSessionCookieExists(TRUE);
    $this
      ->assertBigPipeNoJsCookieExists(FALSE);
    $this
      ->assertRaw('<noscript><meta http-equiv="Refresh" content="0; URL=' . base_path() . 'big_pipe/no-js?destination=' . base_path() . 'user/1" />' . "\n" . '</noscript>');
    $this
      ->assertNoRaw($no_js_to_js_markup);
    $this
      ->assertBigPipeNoJsMetaRefreshRedirect();
    $this
      ->assertBigPipeNoJsCookieExists(TRUE);
    $this
      ->assertNoRaw('<noscript><meta http-equiv="Refresh" content="0; URL=');
    $this
      ->assertRaw($no_js_to_js_markup);
    $this
      ->drupalLogout();

    // Close the prior connection and remove the collected state.
    $this
      ->getSession()
      ->reset();

    // 3. Session (anonymous).
    $this
      ->drupalGet(Url::fromRoute('user.login', [], [
      'query' => [
        'trigger_session' => 1,
      ],
    ]));
    $this
      ->drupalGet(Url::fromRoute('user.login'));
    $this
      ->assertSessionCookieExists(TRUE);
    $this
      ->assertBigPipeNoJsCookieExists(FALSE);
    $this
      ->assertRaw('<noscript><meta http-equiv="Refresh" content="0; URL=' . base_path() . 'big_pipe/no-js?destination=' . base_path() . 'user/login" />' . "\n" . '</noscript>');
    $this
      ->assertNoRaw($no_js_to_js_markup);
    $this
      ->assertBigPipeNoJsMetaRefreshRedirect();
    $this
      ->assertBigPipeNoJsCookieExists(TRUE);
    $this
      ->assertNoRaw('<noscript><meta http-equiv="Refresh" content="0; URL=');
    $this
      ->assertRaw($no_js_to_js_markup);

    // Close the prior connection and remove the collected state.
    $this
      ->getSession()
      ->reset();

    // Edge case: route with '_no_big_pipe' option.
    $this
      ->drupalGet(Url::fromRoute('no_big_pipe'));
    $this
      ->assertSessionCookieExists(FALSE);
    $this
      ->assertBigPipeNoJsCookieExists(FALSE);
    $this
      ->assertNoRaw('<noscript><meta http-equiv="Refresh" content="0; URL=');
    $this
      ->assertNoRaw($no_js_to_js_markup);
    $this
      ->drupalLogin($this->rootUser);
    $this
      ->drupalGet(Url::fromRoute('no_big_pipe'));
    $this
      ->assertSessionCookieExists(TRUE);
    $this
      ->assertBigPipeNoJsCookieExists(FALSE);
    $this
      ->assertNoRaw('<noscript><meta http-equiv="Refresh" content="0; URL=');
    $this
      ->assertNoRaw($no_js_to_js_markup);
  }

  /**
   * Tests BigPipe-delivered HTML responses when JavaScript is enabled.
   *
   * Covers:
   * - \Drupal\big_pipe\EventSubscriber\HtmlResponseBigPipeSubscriber
   * - \Drupal\big_pipe\Render\BigPipe
   * - \Drupal\big_pipe\Render\BigPipe::sendPlaceholders()
   *
   * @see \Drupal\big_pipe_test\BigPipePlaceholderTestCases
   */
  public function testBigPipe() {

    // Simulate production.
    $this
      ->config('system.logging')
      ->set('error_level', ERROR_REPORTING_HIDE)
      ->save();
    $this
      ->drupalLogin($this->rootUser);
    $this
      ->assertSessionCookieExists(TRUE);
    $this
      ->assertBigPipeNoJsCookieExists(FALSE);
    $connection = Database::getConnection();
    $log_count = $connection
      ->select('watchdog')
      ->countQuery()
      ->execute()
      ->fetchField();

    // By not calling performMetaRefresh() here, we simulate JavaScript being
    // enabled, because as far as the BigPipe module is concerned, JavaScript is
    // enabled in the browser as long as the BigPipe no-JS cookie is *not* set.
    // @see setUp()
    // @see performMetaRefresh()
    $this
      ->drupalGet(Url::fromRoute('big_pipe_test'));
    $this
      ->assertBigPipeResponseHeadersPresent();
    $this
      ->assertSession()
      ->responseHeaderNotContains('X-Drupal-Cache-Tags', 'cache_tag_set_in_lazy_builder');
    $this
      ->setCsrfTokenSeedInTestEnvironment();
    $cases = $this
      ->getTestCases();
    $this
      ->assertBigPipeNoJsPlaceholders([
      $cases['edge_case__invalid_html']->bigPipeNoJsPlaceholder => $cases['edge_case__invalid_html']->embeddedHtmlResponse,
      $cases['html_attribute_value']->bigPipeNoJsPlaceholder => $cases['html_attribute_value']->embeddedHtmlResponse,
      $cases['html_attribute_value_subset']->bigPipeNoJsPlaceholder => $cases['html_attribute_value_subset']->embeddedHtmlResponse,
    ]);
    $this
      ->assertBigPipePlaceholders([
      $cases['html']->bigPipePlaceholderId => Json::encode($cases['html']->embeddedAjaxResponseCommands),
      $cases['edge_case__html_non_lazy_builder']->bigPipePlaceholderId => Json::encode($cases['edge_case__html_non_lazy_builder']->embeddedAjaxResponseCommands),
      $cases['exception__lazy_builder']->bigPipePlaceholderId => NULL,
      $cases['exception__embedded_response']->bigPipePlaceholderId => NULL,
    ], [
      0 => $cases['edge_case__html_non_lazy_builder']->bigPipePlaceholderId,
      // The 'html' case contains the 'status messages' placeholder, which is
      // always rendered last.
      1 => $cases['html']->bigPipePlaceholderId,
    ]);
    $this
      ->assertRaw('</body>', 'Closing body tag present.');

    // Verifying BigPipe assets are present.
    $this
      ->assertFalse(empty($this
      ->getDrupalSettings()), 'drupalSettings present.');
    $this
      ->assertContains('big_pipe/big_pipe', explode(',', $this
      ->getDrupalSettings()['ajaxPageState']['libraries']), 'BigPipe asset library is present.');

    // Verify that the two expected exceptions are logged as errors.
    $this
      ->assertEqual($log_count + 2, (int) $connection
      ->select('watchdog')
      ->countQuery()
      ->execute()
      ->fetchField(), 'Two new watchdog entries.');

    // Using dynamic select queries with the method range() allows contrib
    // database drivers the ability to insert their own limit and offset
    // functionality.
    $records = $connection
      ->select('watchdog', 'w')
      ->fields('w')
      ->orderBy('wid', 'DESC')
      ->range(0, 2)
      ->execute()
      ->fetchAll();
    $this
      ->assertEqual(RfcLogLevel::ERROR, $records[0]->severity);
    $this
      ->assertStringContainsString('Oh noes!', (string) unserialize($records[0]->variables)['@message']);
    $this
      ->assertEqual(RfcLogLevel::ERROR, $records[1]->severity);
    $this
      ->assertStringContainsString('You are not allowed to say llamas are not cool!', (string) unserialize($records[1]->variables)['@message']);

    // Verify that 4xx responses work fine. (4xx responses are handled by
    // subrequests to a route pointing to a controller with the desired output.)
    $this
      ->drupalGet(Url::fromUri('base:non-existing-path'));

    // Simulate development.
    // Verifying BigPipe provides useful error output when an error occurs
    // while rendering a placeholder if verbose error logging is enabled.
    $this
      ->config('system.logging')
      ->set('error_level', ERROR_REPORTING_DISPLAY_VERBOSE)
      ->save();
    $this
      ->drupalGet(Url::fromRoute('big_pipe_test'));

    // The 'edge_case__html_exception' case throws an exception.
    $this
      ->assertRaw('The website encountered an unexpected error. Please try again later');
    $this
      ->assertRaw('You are not allowed to say llamas are not cool!');
    $this
      ->assertNoRaw(BigPipe::STOP_SIGNAL, 'BigPipe stop signal absent: error occurred before then.');
    $this
      ->assertNoRaw('</body>', 'Closing body tag absent: error occurred before then.');

    // The exception is expected. Do not interpret it as a test failure.
    unlink($this->root . '/' . $this->siteDirectory . '/error.log');
  }

  /**
   * Tests BigPipe-delivered HTML responses when JavaScript is disabled.
   *
   * Covers:
   * - \Drupal\big_pipe\EventSubscriber\HtmlResponseBigPipeSubscriber
   * - \Drupal\big_pipe\Render\BigPipe
   * - \Drupal\big_pipe\Render\BigPipe::sendNoJsPlaceholders()
   *
   * @see \Drupal\big_pipe_test\BigPipePlaceholderTestCases
   */
  public function testBigPipeNoJs() {

    // Simulate production.
    $this
      ->config('system.logging')
      ->set('error_level', ERROR_REPORTING_HIDE)
      ->save();
    $this
      ->drupalLogin($this->rootUser);
    $this
      ->assertSessionCookieExists(TRUE);
    $this
      ->assertBigPipeNoJsCookieExists(FALSE);

    // By calling performMetaRefresh() here, we simulate JavaScript being
    // disabled, because as far as the BigPipe module is concerned, it is
    // enabled in the browser when the BigPipe no-JS cookie is set.
    // @see setUp()
    // @see performMetaRefresh()
    $this
      ->performMetaRefresh();
    $this
      ->assertBigPipeNoJsCookieExists(TRUE);
    $this
      ->drupalGet(Url::fromRoute('big_pipe_test'));
    $this
      ->assertBigPipeResponseHeadersPresent();
    $this
      ->assertSession()
      ->responseHeaderNotContains('X-Drupal-Cache-Tags', 'cache_tag_set_in_lazy_builder');
    $this
      ->setCsrfTokenSeedInTestEnvironment();
    $cases = $this
      ->getTestCases();
    $this
      ->assertBigPipeNoJsPlaceholders([
      $cases['edge_case__invalid_html']->bigPipeNoJsPlaceholder => $cases['edge_case__invalid_html']->embeddedHtmlResponse,
      $cases['html_attribute_value']->bigPipeNoJsPlaceholder => $cases['html_attribute_value']->embeddedHtmlResponse,
      $cases['html_attribute_value_subset']->bigPipeNoJsPlaceholder => $cases['html_attribute_value_subset']->embeddedHtmlResponse,
      $cases['html']->bigPipeNoJsPlaceholder => $cases['html']->embeddedHtmlResponse,
      $cases['edge_case__html_non_lazy_builder']->bigPipeNoJsPlaceholder => $cases['edge_case__html_non_lazy_builder']->embeddedHtmlResponse,
      $cases['exception__lazy_builder']->bigPipePlaceholderId => NULL,
      $cases['exception__embedded_response']->bigPipePlaceholderId => NULL,
    ]);

    // Verifying there are no BigPipe placeholders & replacements.
    $this
      ->assertEqual('<none>', $this
      ->drupalGetHeader('BigPipe-Test-Placeholders'));

    // Verifying BigPipe start/stop signals are absent.
    $this
      ->assertNoRaw(BigPipe::START_SIGNAL, 'BigPipe start signal absent.');
    $this
      ->assertNoRaw(BigPipe::STOP_SIGNAL, 'BigPipe stop signal absent.');

    // Verifying BigPipe assets are absent.
    $this
      ->assertTrue(!isset($this
      ->getDrupalSettings()['bigPipePlaceholderIds']) && empty($this
      ->getDrupalSettings()['ajaxPageState']), 'BigPipe drupalSettings and BigPipe asset library absent.');
    $this
      ->assertRaw('</body>', 'Closing body tag present.');

    // Verify that 4xx responses work fine. (4xx responses are handled by
    // subrequests to a route pointing to a controller with the desired output.)
    $this
      ->drupalGet(Url::fromUri('base:non-existing-path'));

    // Simulate development.
    // Verifying BigPipe provides useful error output when an error occurs
    // while rendering a placeholder if verbose error logging is enabled.
    $this
      ->config('system.logging')
      ->set('error_level', ERROR_REPORTING_DISPLAY_VERBOSE)
      ->save();
    $this
      ->drupalGet(Url::fromRoute('big_pipe_test'));

    // The 'edge_case__html_exception' case throws an exception.
    $this
      ->assertRaw('The website encountered an unexpected error. Please try again later');
    $this
      ->assertRaw('You are not allowed to say llamas are not cool!');
    $this
      ->assertNoRaw('</body>', 'Closing body tag absent: error occurred before then.');

    // The exception is expected. Do not interpret it as a test failure.
    unlink($this->root . '/' . $this->siteDirectory . '/error.log');
  }

  /**
   * Tests BigPipe with a multi-occurrence placeholder.
   */
  public function testBigPipeMultiOccurrencePlaceholders() {
    $this
      ->drupalLogin($this->rootUser);
    $this
      ->assertSessionCookieExists(TRUE);
    $this
      ->assertBigPipeNoJsCookieExists(FALSE);

    // By not calling performMetaRefresh() here, we simulate JavaScript being
    // enabled, because as far as the BigPipe module is concerned, JavaScript is
    // enabled in the browser as long as the BigPipe no-JS cookie is *not* set.
    // @see setUp()
    // @see performMetaRefresh()
    $this
      ->drupalGet(Url::fromRoute('big_pipe_test_multi_occurrence'));
    $big_pipe_placeholder_id = 'callback=Drupal%5CCore%5CRender%5CElement%5CStatusMessages%3A%3ArenderMessages&amp;args%5B0%5D&amp;token=_HAdUpwWmet0TOTe2PSiJuMntExoshbm1kh2wQzzzAA';
    $expected_placeholder_replacement = '<script type="application/vnd.drupal-ajax" data-big-pipe-replacement-for-placeholder-with-id="' . $big_pipe_placeholder_id . '">';
    $this
      ->assertRaw('The count is 1.');
    $this
      ->assertNoRaw('The count is 2.');
    $this
      ->assertNoRaw('The count is 3.');
    $raw_content = $this
      ->getSession()
      ->getPage()
      ->getContent();
    $this
      ->assertTrue(substr_count($raw_content, $expected_placeholder_replacement) == 1, 'Only one placeholder replacement was found for the duplicate #lazy_builder arrays.');

    // By calling performMetaRefresh() here, we simulate JavaScript being
    // disabled, because as far as the BigPipe module is concerned, it is
    // enabled in the browser when the BigPipe no-JS cookie is set.
    // @see setUp()
    // @see performMetaRefresh()
    $this
      ->performMetaRefresh();
    $this
      ->assertBigPipeNoJsCookieExists(TRUE);
    $this
      ->drupalGet(Url::fromRoute('big_pipe_test_multi_occurrence'));
    $this
      ->assertRaw('The count is 1.');
    $this
      ->assertNoRaw('The count is 2.');
    $this
      ->assertNoRaw('The count is 3.');
  }
  protected function assertBigPipeResponseHeadersPresent() {

    // Check that Cache-Control header set to "private".
    $this
      ->assertSession()
      ->responseHeaderContains('Cache-Control', 'private');
    $this
      ->assertEqual('no-store, content="BigPipe/1.0"', $this
      ->drupalGetHeader('Surrogate-Control'));
    $this
      ->assertEqual('no', $this
      ->drupalGetHeader('X-Accel-Buffering'));
  }

  /**
   * Asserts expected BigPipe no-JS placeholders are present and replaced.
   *
   * @param array $expected_big_pipe_nojs_placeholders
   *   Keys: BigPipe no-JS placeholder markup. Values: expected replacement
   *   markup.
   */
  protected function assertBigPipeNoJsPlaceholders(array $expected_big_pipe_nojs_placeholders) {
    $this
      ->assertSetsEqual(array_keys($expected_big_pipe_nojs_placeholders), array_map('rawurldecode', explode(' ', $this
      ->drupalGetHeader('BigPipe-Test-No-Js-Placeholders'))));
    foreach ($expected_big_pipe_nojs_placeholders as $big_pipe_nojs_placeholder => $expected_replacement) {

      // Checking whether the replacement for the BigPipe no-JS placeholder
      // $big_pipe_nojs_placeholder is present.
      $this
        ->assertNoRaw($big_pipe_nojs_placeholder);
      if ($expected_replacement !== NULL) {
        $this
          ->assertRaw($expected_replacement);
      }
    }
  }

  /**
   * Asserts expected BigPipe placeholders are present and replaced.
   *
   * @param array $expected_big_pipe_placeholders
   *   Keys: BigPipe placeholder IDs. Values: expected AJAX response.
   * @param array $expected_big_pipe_placeholder_stream_order
   *   Keys: BigPipe placeholder IDs. Values: expected AJAX response. Keys are
   *   defined in the order that they are expected to be rendered & streamed.
   */
  protected function assertBigPipePlaceholders(array $expected_big_pipe_placeholders, array $expected_big_pipe_placeholder_stream_order) {
    $this
      ->assertSetsEqual(array_keys($expected_big_pipe_placeholders), explode(' ', $this
      ->drupalGetHeader('BigPipe-Test-Placeholders')));
    $placeholder_positions = [];
    $placeholder_replacement_positions = [];
    foreach ($expected_big_pipe_placeholders as $big_pipe_placeholder_id => $expected_ajax_response) {

      // Verify expected placeholder.
      $expected_placeholder_html = '<span data-big-pipe-placeholder-id="' . $big_pipe_placeholder_id . '"></span>';
      $this
        ->assertRaw($expected_placeholder_html, 'BigPipe placeholder for placeholder ID "' . $big_pipe_placeholder_id . '" found.');
      $pos = strpos($this
        ->getSession()
        ->getPage()
        ->getContent(), $expected_placeholder_html);
      $placeholder_positions[$pos] = $big_pipe_placeholder_id;

      // Verify expected placeholder replacement.
      $expected_placeholder_replacement = '<script type="application/vnd.drupal-ajax" data-big-pipe-replacement-for-placeholder-with-id="' . $big_pipe_placeholder_id . '">';
      $result = $this
        ->xpath('//script[@data-big-pipe-replacement-for-placeholder-with-id=:id]', [
        ':id' => Html::decodeEntities($big_pipe_placeholder_id),
      ]);
      if ($expected_ajax_response === NULL) {
        $this
          ->assertCount(0, $result);
        $this
          ->assertNoRaw($expected_placeholder_replacement);
        continue;
      }
      $this
        ->assertEqual($expected_ajax_response, trim($result[0]
        ->getText()));
      $this
        ->assertRaw($expected_placeholder_replacement);
      $pos = strpos($this
        ->getSession()
        ->getPage()
        ->getContent(), $expected_placeholder_replacement);
      $placeholder_replacement_positions[$pos] = $big_pipe_placeholder_id;
    }
    ksort($placeholder_positions, SORT_NUMERIC);
    $this
      ->assertEqual(array_keys($expected_big_pipe_placeholders), array_values($placeholder_positions));
    $placeholders = array_map(function (NodeElement $element) {
      return $element
        ->getAttribute('data-big-pipe-placeholder-id');
    }, $this
      ->cssSelect('[data-big-pipe-placeholder-id]'));
    $this
      ->assertEqual(count($expected_big_pipe_placeholders), count(array_unique($placeholders)));
    $expected_big_pipe_placeholders_with_replacements = [];
    foreach ($expected_big_pipe_placeholder_stream_order as $big_pipe_placeholder_id) {
      $expected_big_pipe_placeholders_with_replacements[$big_pipe_placeholder_id] = $expected_big_pipe_placeholders[$big_pipe_placeholder_id];
    }
    $this
      ->assertEqual($expected_big_pipe_placeholders_with_replacements, array_filter($expected_big_pipe_placeholders));
    $this
      ->assertSetsEqual(array_keys($expected_big_pipe_placeholders_with_replacements), array_values($placeholder_replacement_positions));
    $this
      ->assertEqual(count($expected_big_pipe_placeholders_with_replacements), preg_match_all('/' . preg_quote('<script type="application/vnd.drupal-ajax" data-big-pipe-replacement-for-placeholder-with-id="', '/') . '/', $this
      ->getSession()
      ->getPage()
      ->getContent()));

    // Verifying BigPipe start/stop signals.
    $this
      ->assertRaw(BigPipe::START_SIGNAL, 'BigPipe start signal present.');
    $this
      ->assertRaw(BigPipe::STOP_SIGNAL, 'BigPipe stop signal present.');
    $start_signal_position = strpos($this
      ->getSession()
      ->getPage()
      ->getContent(), BigPipe::START_SIGNAL);
    $stop_signal_position = strpos($this
      ->getSession()
      ->getPage()
      ->getContent(), BigPipe::STOP_SIGNAL);
    $this
      ->assertTrue($start_signal_position < $stop_signal_position, 'BigPipe start signal appears before stop signal.');

    // Verifying BigPipe placeholder replacements and start/stop signals were
    // streamed in the correct order.
    $expected_stream_order = array_keys($expected_big_pipe_placeholders_with_replacements);
    array_unshift($expected_stream_order, BigPipe::START_SIGNAL);
    array_push($expected_stream_order, BigPipe::STOP_SIGNAL);
    $actual_stream_order = $placeholder_replacement_positions + [
      $start_signal_position => BigPipe::START_SIGNAL,
      $stop_signal_position => BigPipe::STOP_SIGNAL,
    ];
    ksort($actual_stream_order, SORT_NUMERIC);
    $this
      ->assertEqual($expected_stream_order, array_values($actual_stream_order));
  }

  /**
   * Ensures CSRF tokens can be generated for the current user's session.
   */
  protected function setCsrfTokenSeedInTestEnvironment() {
    $session_data = $this->container
      ->get('session_handler.write_safe')
      ->read($this
      ->getSession()
      ->getCookie($this
      ->getSessionName()));
    $csrf_token_seed = unserialize(explode('_sf2_meta|', $session_data)[1])['s'];
    $this->container
      ->get('session_manager.metadata_bag')
      ->setCsrfTokenSeed($csrf_token_seed);
  }

  /**
   * @return \Drupal\big_pipe_test\BigPipePlaceholderTestCase[]
   */
  protected function getTestCases($has_session = TRUE) {
    return BigPipePlaceholderTestCases::cases($this->container, $this->rootUser);
  }

  /**
   * Asserts whether arrays A and B are equal, when treated as sets.
   */
  protected function assertSetsEqual(array $a, array $b) {
    return count($a) == count($b) && !array_diff_assoc($a, $b);
  }

  /**
   * Asserts whether a BigPipe no-JS cookie exists or not.
   */
  protected function assertBigPipeNoJsCookieExists($expected) {
    $this
      ->assertCookieExists('big_pipe_nojs', $expected, 'BigPipe no-JS');
  }

  /**
   * Asserts whether a session cookie exists or not.
   */
  protected function assertSessionCookieExists($expected) {
    $this
      ->assertCookieExists($this
      ->getSessionName(), $expected, 'Session');
  }

  /**
   * Asserts whether a cookie exists on the client or not.
   */
  protected function assertCookieExists($cookie_name, $expected, $cookie_label) {
    $this
      ->assertEqual($expected, !empty($this
      ->getSession()
      ->getCookie($cookie_name)), $expected ? "{$cookie_label} cookie exists." : "{$cookie_label} cookie does not exist.");
  }

  /**
   * Calls ::performMetaRefresh() and asserts the responses.
   */
  protected function assertBigPipeNoJsMetaRefreshRedirect() {
    $original_url = $this
      ->getSession()
      ->getCurrentUrl();

    // Disable automatic following of redirects by the HTTP client, so that this
    // test can analyze the response headers of each redirect response.
    $this
      ->getSession()
      ->getDriver()
      ->getClient()
      ->followRedirects(FALSE);
    $this
      ->performMetaRefresh();
    $headers[0] = $this
      ->getSession()
      ->getResponseHeaders();
    $statuses[0] = $this
      ->getSession()
      ->getStatusCode();
    $this
      ->performMetaRefresh();
    $headers[1] = $this
      ->getSession()
      ->getResponseHeaders();
    $statuses[1] = $this
      ->getSession()
      ->getStatusCode();
    $this
      ->getSession()
      ->getDriver()
      ->getClient()
      ->followRedirects(TRUE);
    $this
      ->assertEqual($original_url, $this
      ->getSession()
      ->getCurrentUrl(), 'Redirected back to the original location.');

    // First response: redirect.
    $this
      ->assertEqual(302, $statuses[0], 'The first response was a 302 (redirect).');
    $this
      ->assertStringStartsWith('big_pipe_nojs=1', $headers[0]['Set-Cookie'][0], 'The first response sets the big_pipe_nojs cookie.');
    $this
      ->assertEqual($original_url, $headers[0]['Location'][0], 'The first response redirected back to the original page.');
    $this
      ->assertTrue(empty(array_diff([
      'cookies:big_pipe_nojs',
      'session.exists',
    ], explode(' ', $headers[0]['X-Drupal-Cache-Contexts'][0]))), 'The first response varies by the "cookies:big_pipe_nojs" and "session.exists" cache contexts.');
    $this
      ->assertFalse(isset($headers[0]['Surrogate-Control']), 'The first response has no "Surrogate-Control" header.');

    // Second response: redirect followed.
    $this
      ->assertEqual(200, $statuses[1], 'The second response was a 200.');
    $this
      ->assertTrue(empty(array_diff([
      'cookies:big_pipe_nojs',
      'session.exists',
    ], explode(' ', $headers[0]['X-Drupal-Cache-Contexts'][0]))), 'The first response varies by the "cookies:big_pipe_nojs" and "session.exists" cache contexts.');
    $this
      ->assertEqual('no-store, content="BigPipe/1.0"', $headers[1]['Surrogate-Control'][0], 'The second response has a "Surrogate-Control" header.');
    $this
      ->assertNoRaw('<noscript><meta http-equiv="Refresh" content="0; URL=', 'Once the BigPipe no-JS cookie is set, the <meta> refresh is absent: only one redirect ever happens.');
  }

}

Members

Namesort descending Modifiers Type Description Overrides
AssertHelperTrait::castSafeStrings protected static function Casts MarkupInterface objects into strings.
AssertLegacyTrait::assert protected function Deprecated Scheduled for removal in Drupal 10.0.0. Use self::assertTrue() instead.
AssertLegacyTrait::assertCacheTag protected function Asserts whether an expected cache tag was present in the last response.
AssertLegacyTrait::assertElementNotPresent protected function Asserts that the element with the given CSS selector is not present.
AssertLegacyTrait::assertElementPresent protected function Asserts that the element with the given CSS selector is present.
AssertLegacyTrait::assertEqual protected function Deprecated Scheduled for removal in Drupal 10.0.0. Use self::assertEquals() instead.
AssertLegacyTrait::assertEscaped protected function Passes if the raw text IS found escaped on the loaded page, fail otherwise.
AssertLegacyTrait::assertField protected function Asserts that a field exists with the given name or ID.
AssertLegacyTrait::assertFieldById protected function Asserts that a field exists with the given ID and value.
AssertLegacyTrait::assertFieldByName protected function Asserts that a field exists with the given name and value.
AssertLegacyTrait::assertFieldByXPath protected function Asserts that a field exists in the current page by the given XPath.
AssertLegacyTrait::assertFieldChecked protected function Asserts that a checkbox field in the current page is checked.
AssertLegacyTrait::assertFieldsByValue protected function Asserts that a field exists in the current page with a given Xpath result.
AssertLegacyTrait::assertHeader protected function Checks that current response header equals value.
AssertLegacyTrait::assertIdentical protected function Deprecated Scheduled for removal in Drupal 10.0.0. Use self::assertSame() instead.
AssertLegacyTrait::assertIdenticalObject protected function Deprecated Scheduled for removal in Drupal 10.0.0. Use self::assertEquals() instead.
AssertLegacyTrait::assertLink protected function Passes if a link with the specified label is found.
AssertLegacyTrait::assertLinkByHref protected function Passes if a link containing a given href (part) is found.
AssertLegacyTrait::assertNoCacheTag protected function Asserts whether an expected cache tag was absent in the last response.
AssertLegacyTrait::assertNoEscaped protected function Passes if the raw text is not found escaped on the loaded page.
AssertLegacyTrait::assertNoField protected function Asserts that a field does NOT exist with the given name or ID.
AssertLegacyTrait::assertNoFieldById protected function Asserts that a field does not exist with the given ID and value.
AssertLegacyTrait::assertNoFieldByName protected function Asserts that a field does not exist with the given name and value.
AssertLegacyTrait::assertNoFieldByXPath protected function Asserts that a field does not exist or its value does not match, by XPath.
AssertLegacyTrait::assertNoFieldChecked protected function Asserts that a checkbox field in the current page is not checked.
AssertLegacyTrait::assertNoLink protected function Passes if a link with the specified label is not found.
AssertLegacyTrait::assertNoLinkByHref protected function Passes if a link containing a given href (part) is not found.
AssertLegacyTrait::assertNoOption protected function Asserts that a select option does NOT exist in the current page.
AssertLegacyTrait::assertNoPattern protected function Triggers a pass if the Perl regex pattern is not found in the raw content.
AssertLegacyTrait::assertNoRaw protected function Passes if the raw text IS not found on the loaded page, fail otherwise. 1
AssertLegacyTrait::assertNotEqual protected function Deprecated Scheduled for removal in Drupal 10.0.0. Use self::assertNotEquals() instead.
AssertLegacyTrait::assertNoText protected function Passes if the page (with HTML stripped) does not contains the text. 1
AssertLegacyTrait::assertNotIdentical protected function Deprecated Scheduled for removal in Drupal 10.0.0. Use self::assertNotSame() instead.
AssertLegacyTrait::assertNoUniqueText protected function Passes if the text is found MORE THAN ONCE on the text version of the page.
AssertLegacyTrait::assertOption protected function Asserts that a select option in the current page exists.
AssertLegacyTrait::assertOptionByText protected function Asserts that a select option with the visible text exists.
AssertLegacyTrait::assertOptionSelected protected function Asserts that a select option in the current page is checked.
AssertLegacyTrait::assertPattern protected function Triggers a pass if the Perl regex pattern is found in the raw content.
AssertLegacyTrait::assertRaw protected function Passes if the raw text IS found on the loaded page, fail otherwise. 1
AssertLegacyTrait::assertResponse protected function Asserts the page responds with the specified response code. 1
AssertLegacyTrait::assertText protected function Passes if the page (with HTML stripped) contains the text. 1
AssertLegacyTrait::assertTextHelper protected function Helper for assertText and assertNoText.
AssertLegacyTrait::assertTitle protected function Pass if the page title is the given string.
AssertLegacyTrait::assertUniqueText protected function Passes if the text is found ONLY ONCE on the text version of the page.
AssertLegacyTrait::assertUrl protected function Passes if the internal browser's URL matches the given path.
AssertLegacyTrait::buildXPathQuery protected function Builds an XPath query.
AssertLegacyTrait::constructFieldXpath protected function Helper: Constructs an XPath for the given set of attributes and value.
AssertLegacyTrait::getAllOptions protected function Get all option elements, including nested options, in a select.
AssertLegacyTrait::getRawContent protected function Gets the current raw content.
AssertLegacyTrait::pass protected function Deprecated Scheduled for removal in Drupal 10.0.0. Use self::assertTrue() instead.
AssertLegacyTrait::verbose protected function
BigPipeTest::$defaultTheme protected property The theme to install as the default for testing. Overrides BrowserTestBase::$defaultTheme
BigPipeTest::$dumpHeaders protected property
BigPipeTest::$modules public static property Modules to enable. Overrides BrowserTestBase::$modules
BigPipeTest::assertBigPipeNoJsCookieExists protected function Asserts whether a BigPipe no-JS cookie exists or not.
BigPipeTest::assertBigPipeNoJsMetaRefreshRedirect protected function Calls ::performMetaRefresh() and asserts the responses.
BigPipeTest::assertBigPipeNoJsPlaceholders protected function Asserts expected BigPipe no-JS placeholders are present and replaced.
BigPipeTest::assertBigPipePlaceholders protected function Asserts expected BigPipe placeholders are present and replaced.
BigPipeTest::assertBigPipeResponseHeadersPresent protected function
BigPipeTest::assertCookieExists protected function Asserts whether a cookie exists on the client or not.
BigPipeTest::assertSessionCookieExists protected function Asserts whether a session cookie exists or not.
BigPipeTest::assertSetsEqual protected function Asserts whether arrays A and B are equal, when treated as sets.
BigPipeTest::getTestCases protected function
BigPipeTest::performMetaRefresh protected function Performs a single <meta> refresh explicitly.
BigPipeTest::setCsrfTokenSeedInTestEnvironment protected function Ensures CSRF tokens can be generated for the current user's session.
BigPipeTest::setUp protected function Overrides BrowserTestBase::setUp
BigPipeTest::testBigPipe public function Tests BigPipe-delivered HTML responses when JavaScript is enabled.
BigPipeTest::testBigPipeMultiOccurrencePlaceholders public function Tests BigPipe with a multi-occurrence placeholder.
BigPipeTest::testBigPipeNoJs public function Tests BigPipe-delivered HTML responses when JavaScript is disabled.
BigPipeTest::testNoJsDetection public function Tests BigPipe's no-JS detection.
BlockCreationTrait::placeBlock protected function Creates a block instance based on default settings. Aliased as: drupalPlaceBlock
BrowserHtmlDebugTrait::$htmlOutputBaseUrl protected property The Base URI to use for links to the output files.
BrowserHtmlDebugTrait::$htmlOutputClassName protected property Class name for HTML output logging.
BrowserHtmlDebugTrait::$htmlOutputCounter protected property Counter for HTML output logging.
BrowserHtmlDebugTrait::$htmlOutputCounterStorage protected property Counter storage for HTML output logging.
BrowserHtmlDebugTrait::$htmlOutputDirectory protected property Directory name for HTML output logging.
BrowserHtmlDebugTrait::$htmlOutputEnabled protected property HTML output output enabled.
BrowserHtmlDebugTrait::$htmlOutputFile protected property The file name to write the list of URLs to.
BrowserHtmlDebugTrait::$htmlOutputTestId protected property HTML output test ID.
BrowserHtmlDebugTrait::formatHtmlOutputHeaders protected function Formats HTTP headers as string for HTML output logging.
BrowserHtmlDebugTrait::getHtmlOutputHeaders protected function Returns headers in HTML output format. 1
BrowserHtmlDebugTrait::htmlOutput protected function Logs a HTML output message in a text file.
BrowserHtmlDebugTrait::initBrowserOutputFile protected function Creates the directory to store browser output.
BrowserTestBase::$baseUrl protected property The base URL.
BrowserTestBase::$configImporter protected property The config importer that can be used in a test.
BrowserTestBase::$customTranslations protected property An array of custom translations suitable for drupal_rewrite_settings().
BrowserTestBase::$databasePrefix protected property The database prefix of this test run.
BrowserTestBase::$mink protected property Mink session manager.
BrowserTestBase::$minkDefaultDriverArgs protected property
BrowserTestBase::$minkDefaultDriverClass protected property 1
BrowserTestBase::$originalContainer protected property The original container.
BrowserTestBase::$originalShutdownCallbacks protected property The original array of shutdown function callbacks.
BrowserTestBase::$preserveGlobalState protected property
BrowserTestBase::$profile protected property The profile to install as a basis for testing. 39
BrowserTestBase::$root protected property The app root.
BrowserTestBase::$runTestInSeparateProcess protected property Browser tests are run in separate processes to prevent collisions between code that may be loaded by tests.
BrowserTestBase::$timeLimit protected property Time limit in seconds for the test.
BrowserTestBase::$translationFilesDirectory protected property The translation file directory for the test environment.
BrowserTestBase::cleanupEnvironment protected function Clean up the Simpletest environment.
BrowserTestBase::config protected function Configuration accessor for tests. Returns non-overridden configuration.
BrowserTestBase::cssSelectToXpath protected function Translates a CSS expression to its XPath equivalent.
BrowserTestBase::drupalGetHeader protected function Gets the value of an HTTP response header.
BrowserTestBase::drupalGetHeaders Deprecated protected function Returns all response headers.
BrowserTestBase::filePreDeleteCallback public static function Ensures test files are deletable.
BrowserTestBase::getDefaultDriverInstance protected function Gets an instance of the default Mink driver.
BrowserTestBase::getDrupalSettings protected function Gets the JavaScript drupalSettings variable for the currently-loaded page. 1
BrowserTestBase::getHttpClient protected function Obtain the HTTP client for the system under test.
BrowserTestBase::getMinkDriverArgs protected function Get the Mink driver args from an environment variable, if it is set. Can be overridden in a derived class so it is possible to use a different value for a subset of tests, e.g. the JavaScript tests. 1
BrowserTestBase::getOptions protected function Helper function to get the options of select field.
BrowserTestBase::getResponseLogHandler protected function Provides a Guzzle middleware handler to log every response received. Overrides BrowserHtmlDebugTrait::getResponseLogHandler
BrowserTestBase::getSession public function Returns Mink session.
BrowserTestBase::getSessionCookies protected function Get session cookies from current session.
BrowserTestBase::getTestMethodCaller protected function Retrieves the current calling line in the class under test. Overrides BrowserHtmlDebugTrait::getTestMethodCaller
BrowserTestBase::initFrontPage protected function Visits the front page when initializing Mink. 3
BrowserTestBase::initMink protected function Initializes Mink sessions. 1
BrowserTestBase::installDrupal public function Installs Drupal into the Simpletest site. 1
BrowserTestBase::registerSessions protected function Registers additional Mink sessions.
BrowserTestBase::tearDown protected function 3
BrowserTestBase::translatePostValues protected function Transforms a nested array into a flat array suitable for drupalPostForm().
BrowserTestBase::xpath protected function Performs an xpath search on the contents of the internal browser.
BrowserTestBase::__construct public function 1
BrowserTestBase::__sleep public function Prevents serializing any properties.
ConfigTestTrait::configImporter protected function Returns a ConfigImporter object to import test configuration.
ConfigTestTrait::copyConfig protected function Copies configuration objects from source storage to target storage.
ContentTypeCreationTrait::createContentType protected function Creates a custom content type based on default settings. Aliased as: drupalCreateContentType 1
FunctionalTestSetupTrait::$apcuEnsureUniquePrefix protected property The flag to set 'apcu_ensure_unique_prefix' setting. 1
FunctionalTestSetupTrait::$classLoader protected property The class loader to use for installation and initialization of setup.
FunctionalTestSetupTrait::$configDirectories Deprecated protected property The config directories used in this test.
FunctionalTestSetupTrait::$rootUser protected property The "#1" admin user.
FunctionalTestSetupTrait::doInstall protected function Execute the non-interactive installer. 1
FunctionalTestSetupTrait::getDatabaseTypes protected function Returns all supported database driver installer objects.
FunctionalTestSetupTrait::initConfig protected function Initialize various configurations post-installation. 2
FunctionalTestSetupTrait::initKernel protected function Initializes the kernel after installation.
FunctionalTestSetupTrait::initSettings protected function Initialize settings created during install.
FunctionalTestSetupTrait::initUserSession protected function Initializes user 1 for the site to be installed.
FunctionalTestSetupTrait::installDefaultThemeFromClassProperty protected function Installs the default theme defined by `static::$defaultTheme` when needed.
FunctionalTestSetupTrait::installModulesFromClassProperty protected function Install modules defined by `static::$modules`. 1
FunctionalTestSetupTrait::installParameters protected function Returns the parameters that will be used when Simpletest installs Drupal. 9
FunctionalTestSetupTrait::prepareEnvironment protected function Prepares the current environment for running the test. 23
FunctionalTestSetupTrait::prepareRequestForGenerator protected function Creates a mock request and sets it on the generator.
FunctionalTestSetupTrait::prepareSettings protected function Prepares site settings and services before installation. 2
FunctionalTestSetupTrait::rebuildAll protected function Resets and rebuilds the environment after setup.
FunctionalTestSetupTrait::rebuildContainer protected function Rebuilds \Drupal::getContainer().
FunctionalTestSetupTrait::resetAll protected function Resets all data structures after having enabled new modules.
FunctionalTestSetupTrait::setContainerParameter protected function Changes parameters in the services.yml file.
FunctionalTestSetupTrait::setupBaseUrl protected function Sets up the base URL based upon the environment variable.
FunctionalTestSetupTrait::writeSettings protected function Rewrites the settings.php file of the test site.
NodeCreationTrait::createNode protected function Creates a node based on default settings. Aliased as: drupalCreateNode
NodeCreationTrait::getNodeByTitle public function Get a node from the database based on its title. Aliased as: drupalGetNodeByTitle
PhpunitCompatibilityTrait::getMock Deprecated public function Returns a mock object for the specified class using the available method.
PhpunitCompatibilityTrait::setExpectedException Deprecated public function Compatibility layer for PHPUnit 6 to support PHPUnit 4 code.
RandomGeneratorTrait::$randomGenerator protected property The random generator.
RandomGeneratorTrait::getRandomGenerator protected function Gets the random generator for the utility methods.
RandomGeneratorTrait::randomMachineName protected function Generates a unique random string containing letters and numbers. 1
RandomGeneratorTrait::randomObject public function Generates a random PHP object.
RandomGeneratorTrait::randomString public function Generates a pseudo-random string of ASCII characters of codes 32 to 126.
RandomGeneratorTrait::randomStringValidate public function Callback for random string validation.
RefreshVariablesTrait::refreshVariables protected function Refreshes in-memory configuration and state information. 3
SessionTestTrait::$sessionName protected property The name of the session cookie.
SessionTestTrait::generateSessionName protected function Generates a session cookie name.
SessionTestTrait::getSessionName protected function Returns the session name in use on the child site.
StorageCopyTrait::replaceStorageContents protected static function Copy the configuration from one storage to another and remove stale items.
TestRequirementsTrait::checkModuleRequirements private function Checks missing module requirements.
TestRequirementsTrait::checkRequirements protected function Check module requirements for the Drupal use case. 1
TestRequirementsTrait::getDrupalRoot protected static function Returns the Drupal root directory.
TestSetupTrait::$configSchemaCheckerExclusions protected static property An array of config object names that are excluded from schema checking.
TestSetupTrait::$container protected property The dependency injection container used in the test.
TestSetupTrait::$kernel protected property The DrupalKernel instance used in the test.
TestSetupTrait::$originalSite protected property The site directory of the original parent site.
TestSetupTrait::$privateFilesDirectory protected property The private file directory for the test environment.
TestSetupTrait::$publicFilesDirectory protected property The public file directory for the test environment.
TestSetupTrait::$siteDirectory protected property The site directory of this test run.
TestSetupTrait::$strictConfigSchema protected property Set to TRUE to strict check all configuration saved. 2
TestSetupTrait::$tempFilesDirectory protected property The temporary file directory for the test environment.
TestSetupTrait::$testId protected property The test run ID.
TestSetupTrait::changeDatabasePrefix protected function Changes the database connection to the prefixed one.
TestSetupTrait::getConfigSchemaExclusions protected function Gets the config schema exclusions for this test.
TestSetupTrait::getDatabaseConnection public static function Returns the database connection to the site running Simpletest.
TestSetupTrait::prepareDatabasePrefix protected function Generates a database prefix for running tests. 2
UiHelperTrait::$loggedInUser protected property The current user logged in using the Mink controlled browser.
UiHelperTrait::$maximumMetaRefreshCount protected property The number of meta refresh redirects to follow, or NULL if unlimited.
UiHelperTrait::$metaRefreshCount protected property The number of meta refresh redirects followed during ::drupalGet().
UiHelperTrait::assertSession public function Returns WebAssert object. 1
UiHelperTrait::buildUrl protected function Builds an a absolute URL from a system path or a URL object.
UiHelperTrait::checkForMetaRefresh protected function Checks for meta refresh tag and if found call drupalGet() recursively.
UiHelperTrait::click protected function Clicks the element with the given CSS selector.
UiHelperTrait::clickLink protected function Follows a link by complete name.
UiHelperTrait::cssSelect protected function Searches elements using a CSS selector in the raw content.
UiHelperTrait::drupalGet protected function Retrieves a Drupal path or an absolute path. 3
UiHelperTrait::drupalLogin protected function Logs in a user using the Mink controlled browser.
UiHelperTrait::drupalLogout protected function Logs a user out of the Mink controlled browser and confirms.
UiHelperTrait::drupalPostForm protected function Executes a form submission.
UiHelperTrait::drupalUserIsLoggedIn protected function Returns whether a given user account is logged in.
UiHelperTrait::getAbsoluteUrl protected function Takes a path and returns an absolute path.
UiHelperTrait::getTextContent protected function Retrieves the plain-text content from the current page.
UiHelperTrait::getUrl protected function Get the current URL from the browser.
UiHelperTrait::prepareRequest protected function Prepare for a request to testing site. 1
UiHelperTrait::submitForm protected function Fills and submits a form.
UserCreationTrait::checkPermissions protected function Checks whether a given list of permission names is valid.
UserCreationTrait::createAdminRole protected function Creates an administrative role.
UserCreationTrait::createRole protected function Creates a role with specified permissions. Aliased as: drupalCreateRole
UserCreationTrait::createUser protected function Create a user with a given set of permissions. Aliased as: drupalCreateUser
UserCreationTrait::grantPermissions protected function Grant permissions to a user role.
UserCreationTrait::setCurrentUser protected function Switch the current logged in user.
UserCreationTrait::setUpCurrentUser protected function Creates a random user account and sets it as current user.
XdebugRequestTrait::extractCookiesFromRequest protected function Adds xdebug cookies, from request setup.