Having noodled on these comments for a few, I share your view, but I'm curious if the type of testing varies based on seniority/carefulness. I find people earl

Having noodled on these comments for a few, I share your view, but I'm curious if the type of testing varies based on seniority/carefulness. I find people earlier in their careers (or people with less care) write code where the failures at boundary conditions are obvious to me, but not to them. I can see unit tests (or quick check) paying big dividends with that group while being lower ROI for more experienced / more careful teams.