When Developers Should Write Their Own Tests

My acquired taste is sure to provoke some criticism, but please hear me out to the end with an open mind, and with bias, ego and visceral reactions aside. If you still disagree after all is said, then crucify me to your heart’s content.

Many senior developers would already agree that unit testing is beneficial, but sometimes I do feel a bit of skepticism or pushback from others at the mention of using amazing code coverage tools (like NCrunch or VS Enterprise’s live unit testing) which hold developers accountable for every single line of code they write.