> complex mock That's a smell for sure. I've got a codebase with lots of 'mocks' and a good amount of dependency injection, but I don't feel like it's hard to

> complex mock That's a smell for sure. I've got a codebase with lots of 'mocks' and a good amount of dependency injection, but I don't feel like it's hard to modify. In fact, the mocks and dependency injection make testing possible. But then all of the mocks are really dumb, e.g. implementing an interface in the 'dumbest' way possible. The most complex mock behavior I have is return a value supplied as a parameter to this object's constructor. The mock then is really just a way to explicitly encode assumptions about (possible) behavior of whatever it is being mocked or injected.