TDD should not be taken as a religious dogma. The way I like it is, central business logic as pure functions, which have tonnes of unit test. While integration

TDD should not be taken as a religious dogma. The way I like it is, central business logic as pure functions, which have tonnes of unit test. While integration with other services and components sits on edge which do not have unit tests, instead integration tests. If I have a key piece of code, I wanna test, but would require lots of mocks, it is time to refactor.