ghc-mod/test/TestUtils.hs
2014-08-12 18:24:39 +02:00

62 lines
1.5 KiB
Haskell

module TestUtils (
run
, runD
, runD'
, runI
, runID
, runIsolatedGhcMod
, isolateCradle
, shouldReturnError
, module Language.Haskell.GhcMod.Monad
, module Language.Haskell.GhcMod.Types
) where
import Language.Haskell.GhcMod.Monad
import Language.Haskell.GhcMod.Types
import Test.Hspec
isolateCradle :: IOish m => GhcModT m a -> GhcModT m a
isolateCradle action =
local modifyEnv $ action
where
modifyEnv e = e { gmCradle = (gmCradle e) { cradlePkgDbStack = [GlobalDb] } }
extract :: IO (Either e a, w) -> IO a
extract action = do
(Right a, _) <- action
return a
runIsolatedGhcMod :: Options -> GhcModT IO a -> IO a
runIsolatedGhcMod opt action = do
extract $ runGhcModT opt $ isolateCradle action
-- | Run GhcMod in isolated cradle with default options
runID :: GhcModT IO a -> IO a
runID = runIsolatedGhcMod defaultOptions
-- | Run GhcMod in isolated cradle
runI :: Options -> GhcModT IO a -> IO a
runI = runIsolatedGhcMod
-- | Run GhcMod
run :: Options -> GhcModT IO a -> IO a
run opt a = extract $ runGhcModT opt a
-- | Run GhcMod with default options
runD :: GhcModT IO a -> IO a
runD = extract . runGhcModT defaultOptions
runD' :: GhcModT IO a -> IO (Either GhcModError a, GhcModLog)
runD' = runGhcModT defaultOptions
shouldReturnError :: Show a
=> IO (Either GhcModError a, GhcModLog)
-> Expectation
shouldReturnError action = do
(a,_) <- action
a `shouldSatisfy` isLeft
where
isLeft (Left _) = True
isLeft _ = False