https://api.drupal.org/api/drupal/core%21tests%21Drupal%21KernelTests%21Component%21Render%21FormattableMarkupKernelTest.php/class/FormattableMarkupKernelTest/9
class FormattableMarkupKernelTest | Drupal API
classdrupalapi
https://api.drupal.org/api/drupal/core%21tests%21Drupal%21KernelTests%21Component%21Render%21FormattableMarkupKernelTest.php/class/FormattableMarkupKernelTest/10
class FormattableMarkupKernelTest | Drupal API
classdrupalapi