I disagree - your “90%/7%/3%” seems completely arbitrary. It might be appropriate for some projects but I think it’s wrong to adopt as a hard and fast rule. IM

I disagree - your “90%/7%/3%” seems completely arbitrary. It might be appropriate for some projects but I think it’s wrong to adopt as a hard and fast rule. IMO, the correct amount of testing is the amount that lets you refactor quickly and with confidence that you haven’t broken anything, and that tests pathways/edge cases in complicated logic.