How to enable the Webform test modules

The Webform 8.x-5.x modules ships with several test modules that contain dozens of example forms that are used for automated testing and can also be used for debugging issues.

To enable the test modules, you can add$settings['extension_discovery_scan_tests'] = TRUE; to your settings.php file or you can enable the the default local.settings.php file that comes with Drupal 8.

Below is a screenshot of the available test forms.