Yeah, that's nowhere remotely close to what the kata is supposed to test, which is a problem in itself.

Haskell solution's type expectations are weird. There's a mix of Ints and Integers in the input, and it makes it nearly impossible to properly handle the data.

Trimming whitespace on its own has been thoroughly covered, but this involves several other steps in order to trim each individual line. I looked and could not find another kata that covered it. I'd be happy to update the tests when I have a chance.