Hello Xavier A partial function will emit an exception, which must be caught from IO. I'm sure HUnit has an appropriate mechanism for handling this, but I strongly suggest you redesign your function to be total: instead of omitting pattern matches, change it to use Maybe and return Nothing in the 'otherwise' case. Cheers, Edward Excerpts from Xavier Shay's message of Tue Feb 22 05:59:12 -0500 2011:
Hello,
Given the following contrived function:
giveMeThree x | x == 3 = True
How do I test with HUnit that 2 is invalid input?
giveMeThreeTests = [ "Likes 3" ~: True ~=? giveMeThree 3 , "Dislikes 2" ~: ..... -- what? ]
I couldn't find anything mentioned in the HUnit user guide. References to appropriate documentation appreciated.
Cheers, Xavier