I’ve been using both QuickCheck and HUnit to make sure that the functions in dataenc both have the expected properties and follow the specifications.

This morning I stumbled on a series of posts by Matthew Podwysocki on Functional Programming Unit Testing (part 1, part 2, part 3, part 4, part). I think I really could have used these posts about two years ago when I first ventured into the world of testing Haskell. The only new thing I learnt was the existence of the package test-framwork in part three. Anyway, they are a good introduction to testing Haskell code (and F#).