Hello guys, a feature idea/request���
This weekend I was binge-watching talks from Ruby conferences, by Sandi Metz and Katrina Owen on OO design, refactoring, and testing.
Highly recommended, and at least Sandi is an experienced smalltalker.
In particular, in the second one, Sandi remarks that there is a risk that the application API diverges from the set of messages checked with the mocks. There are tools to help with that, mostly involving the mocks checking that each message they expect actually exists in the application.
In Mocketry, mocks are created ex-nihilo, but it could be nice to pass a reference class to compare with, or for the mock to check that there are implementors of the message.