') !== FALSE, 'Empty class is not added to DIV when class is not set'); // Check that an empty class attribute is not added if the list class is // not set. $this->assertTrue(strpos($output, '

') !== FALSE, 'Empty class is not added to UL when class is not set'); // Set wrapper class and list class in style options. $view->style_plugin->options['class'] = 'class'; $view->style_plugin->options['wrapper_class'] = 'wrapper-class'; $output = $view->preview(); $output = \Drupal::service('renderer')->renderRoot($output); // Check that class attribute is present if the wrapper class is set. $this->assertTrue(strpos($output, '
') !== FALSE, 'Class is added to DIV'); // Check that class attribute is present if the list class is set. $this->assertTrue(strpos($output, '
') !== FALSE, 'Class is added to UL'); } }