[Haskell-cafe] Recipes for organizing HUnit tests

[Isaac Dupree]

Mushfeq Khan wrote:
> I'm new to Haskell and am trying to find a good way to organize my HUnit
> tests. Having used some of the other XUnit frameworks, I tended towards
> trying to organize them all in a parallel "test" folder structure, but this
> seems to be a bad fit for Haskell, since the test modules cannot see the
> source modules unless they are either in the same folder or a folder above
> it. That's without modifying the module search path when I run the tests,
> which I would like to avoid.

Well, it's certainly possible to use parallel directory structures -- 
this is one way to do it:

Xyzzy/Gizmo.hs:
module Xyzzy.Gizmo where
...

Test/Gizmo.hs:
module Test.Gizmo where
import Xyzzy.Gizmo
main = ...

ghc --make -main-is Test.Gizmo.main Test/Gizmo.hs

Or without -main-is,

Tests.hs:
module Main where
import Test.Gizmo
import Test.Bar
...
main = testGizmo, testBar ...

ghc --make Tests


Isaac