[planede]

My introduction to mocking was through C++ and googlemock, where you have to dependency inject the mock object to do any mocking. This always made sense to me, and could often make APIs nicer and more generic with this approach. The API for dependency injection just ends up an other public interface that you need to test, and one natural way to test it is with mock objects.

Then I learned about pytest, magicmock, and that the norm for other testing frameworks in other (mostly dynamic) languages is that you can replace whatever member or free function with a mock without this being part of the public interface of the original class or function. This feels insane to me, as this just tests implementation details.

Is there terminology to distinguish between these two kinds of mocking?

[Deadron]

Poorly vs well structured code.