template_preprocess_update_fetch_error_message example

  public function testTemplatePreprocessUpdateFetchErrorMessageNoDblog() {
    $build = [
      '#theme' => 'update_fetch_error_message',
    ];
    $this->render($build);
    $this->assertRaw('Failed to fetch available update data:<ul><li>See <a href="https://www.drupal.org/node/3170647">PHP OpenSSL requirements</a> in the Drupal.org handbook for possible reasons this could happen and what you can do to resolve them.</li><li>Check your local system logs for additional error messages.</li></ul>');

    \Drupal::moduleHandler()->loadInclude('update', 'inc', 'update.report');
    $variables = [];
    template_preprocess_update_fetch_error_message($variables);
    $this->assertArrayHasKey('error_message', $variables);
    $this->assertEquals('Failed to fetch available update data:', $variables['error_message']['message']['#markup']);
    $this->assertArrayHasKey('documentation_link', $variables['error_message']['items']['#items']);
    $this->assertArrayHasKey('logs', $variables['error_message']['items']['#items']);
    $this->assertArrayNotHasKey('dblog', $variables['error_message']['items']['#items']);
  }

  /** * Tests the error message when failing to fetch data with dblog enabled. * * @see template_preprocess_update_fetch_error_message() */