In my experience, Unit tests are interesting when they are inlined with the function they test, i.e. in the same file (like python doctests). Of course it’s har

In my experience, Unit tests are interesting when they are inlined with the function they test, i.e. in the same file (like python doctests). Of course it’s harder to set the testing environment but that may in fact be encouraging you to write stateless code so there is that.