Trait 'Drush\TestTraits\DrushTestTrait' not found (8.x-2.x)
Issue #3080529 on drupal.org by Jaypan.
I am unable to run Unit tests on my system due to a bug in the Devel tests.
When I try to execute my php unit tests, I am unable to, as I get:
PHP Fatal error: Trait 'Drush\TestTraits\DrushTestTrait' not found in [path]/devel/tests/src/Functional/DevelCommandsTest.php on line 21
Something in your code is breaking all my unit tests.