Hi, I'm doing TDD in pretty much all of the languages that I know, and I want to introduce it early in my Haskell learning process. I wonder though, if there's some established process regarding TDD, not unit testing. I've heard of QuickCheck and HUnit, but I've also read that QuickCheck is used mostly for testing pure code, while HUnit for impure code? What framework lends itself better for writing tests before the actual production code? Can you point out to some resources regarding this? Oh, and a small off-topic question? Is it considered a good practice to use implicit imports in Haskell? I'm trying to learn from existing packages, but all those "import all" statements drive me crazy. Thanks, -- Ionuț G. Stan | http://igstan.ro