I agree. Espacially since most projects I worked on didn't have a doc at all. When the doc existed, it was always obsolete. Unit tests are not a silver bullet,

I agree. Espacially since most projects I worked on didn't have a doc at all. When the doc existed, it was always obsolete. Unit tests are not a silver bullet, but if you request passing tests and coverage to put in prod, you basically request a minimal & always up to date documentation. And even with all the (very real) downsides of it, it still a huge plus. Besides, a lot of persons tend to see tests in a very rigid way. You don't have to do tdd. You don't have to do have full coverage. You don't even need all your tests to be unit tests, you can mix end2end and functional tests with it. You can have hacky mocks in it too. It doesn't need to be perfect for your team to benefit from it. Actually, I would say that you probably want it not to be perfect so that the benefits outweight the costs. Cause they, tests have a huge cost.