I disagree, I say the more tests the merrier, if you can afford the time cost. It's fairly rare to see faulty tests in my experience. Yes you can have hundreds

I disagree, I say the more tests the merrier, if you can afford the time cost. It's fairly rare to see faulty tests in my experience. Yes you can have hundreds failing tests and the code still works 100% - because those tests are testing API usage in a way the actual application never uses. But that's still a bug, it's just a future bug waiting to happen that you caught early. I wouldn't delete those tests.