Good points. Most requirements do not include error or exception handling requirements, so when developers write their test cases (in the very few cases when t

Good points. Most requirements do not include error or exception handling requirements, so when developers write their test cases (in the very few cases when they do so), they usually do not write negative test cases. Obviously, NFRs need to cover those, but in many organizations, they're seen as being "in the way of getting work done," just like comprehensive automated tests.