InvalidArgumentException: Class "\Drupal\automated_testing_kit\Form\ConfigurationForm"

Ok, I've now found in the README:

Automated Testing Kit has a configuration page located at /admin/config/development/automated_testing_kit/edit (stub for now).

So that explains the error. Suggestion: remove the Drupal menu item completely - better than having it trigger an error page IMHO.

Agreed. We are about to release 1.3 with the email tests sadly removed (Ethereal has stopped offering their service) and I think I've already removed this but I'll confirm.

Removed in 1.3. Closing.

Automatically closed - issue fixed for 2 weeks with no activity.