I recently added tests to Cache Register, but the test runner on drupal.org doesn't seem to be picking them up. The tests are all located in tests/src/Kernel (repo) but aren't queuing up in the issue queue for either patches or merge requests. Am I missing something?
EDIT: Current answer references the namespace of the base test class, but that's no longer relevant. I refactored that Base class into a testing Trait instead and made sure that the remaining "real" tests use the proper namespace. Everything runs locally but still not getting picked up by the runner as far as I can tell.