ah, ok but it still doesn't test anything more. with the 33 test you have already tested the behavior after your past the length to put on the suffix.

Redundant tests make the test suite reader think there are other cases being tested and something in the code to warrant them, that adds to maintenance troubles, since they won't see the code and therefor might need to find the author to figure out why they are there.

I'd say comment or remove. @chadicus ?