In this article, I’d like to discuss the differences in using stubs and mocks and show how you can abandon using mocks even in the cases where you need to verify that objects interact with each other correctly.

Unit testing is good at checking the correctness of your code in isolation, but it’s not a panacea. Only integration tests can give us confidence that the application we develop actually works as a whole. They are also a good substitute for mocks in the cases where you can’t test important business logic without involving external dependencies.