Re: Don't people test edge cases any more? [Time Libraries: The Next Problem]
I agree with you. A case I hit this year (not in my code) was using a library to do 5 digit date validation. The library allowed for 29FEB, but only if a year was included. As the year had not been determined at that point (it could be future, today, or past), validation failed.
Ostensibly the code was 29FEB safe and the library validated it, it still failed.