There are different kinds of tests. Integration tests at the outer edges often gives you most bang for buck. Granular, mocked unit tests often add little valu

There are different kinds of tests. Integration tests at the outer edges often gives you most bang for buck. Granular, mocked unit tests often add little value and will become a maintenance burden sooner or later. And some of it is unconscious; maybe having that big, comfy test suite is preventing the software from evolving in optimal directions; because it would just be too much work and risk.