chell-hunit-0.3: Test/Chell/HUnit.hs

module Test.Chell.HUnit
  ( hunit
  ) where

import qualified Test.Chell as Chell
import           Test.HUnit.Lang (Assertion, Result (..), performTestCase)

-- | Convert a sequence of HUnit assertions (embedded in IO) to a Chell
-- 'Chell.Test'.
--
-- @
--import Test.Chell
--import Test.Chell.HUnit
--import Test.HUnit
--
--test_Addition :: Test
--test_addition = hunit \"addition\" $ do
--    1 + 2 \@?= 3
--    2 + 3 \@?= 5
-- @
hunit :: String -> Assertion -> Chell.Test
hunit name io = Chell.test name chell_io
  where
    chell_io _ =
      do
        result <- performTestCase io
        return $
            case result of
                Success -> Chell.TestPassed []
                Failure _ msg -> Chell.TestFailed []
                    [Chell.failure { Chell.failureMessage = msg }]
                Error _ msg -> Chell.TestAborted [] msg