Comment by bostonsre

Yea... that could probably turn ugly in a lot of cases. I think the flow of object creation and dependency injection would be the important part to handle well in a case with a lot of dependencies. I think the dependencies should be passed down through objects in one direction. So if your object (a) that works on objects (b) that have a lot of dependencies, that first outer object (a) is responsible for injecting dependencies into those 2nd objects (b). So if you have a mocked dependency, you pass that when initializing object a, and object a is responsible for injecting that mocked dependency into object b.

A disclaimer, I'm an sre, so definitely not the most expert proponent of oop.