Ummm yeah it will be in “Phase 2” of the project.

There is no functionality in the interface so there is nothing to test. You test the logic of the implemented methods.

With that said, with reflection you can at least test that an interface has the right method names and annotations present, but I’ve extremely rarely found it useful to do so.

Could they be doing the upgrade to .18.3 and ran into problems? A bunch of other instances upgraded today.