40 lines
1.4 KiB
Haskell
40 lines
1.4 KiB
Haskell
{-# LANGUAGE ScopedTypeVariables #-}
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module MonadSpec where
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import Test.Hspec
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import Dir
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import TestUtils
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import Control.Applicative
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import Control.Exception
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import Control.Monad.Error.Class
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spec :: Spec
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spec = do
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describe "When using GhcModT in a do block" $
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it "a pattern match failure causes a call to `fail` on ErrorT in the monad stack" $ do
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(a, _)
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<- runGhcModT defaultOptions $
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do
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Just _ <- return Nothing
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return "hello"
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`catchError` (const $ fail "oh noes")
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a `shouldBe` (Left $ GMEString "oh noes")
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describe "runGhcModT" $
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it "complains if the cabal file fails to parse while a sandbox is present" $ withDirectory_ "test/data/broken-cabal" $ do
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shouldReturnError $ runD' (gmCradle <$> ask)
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describe "gmsGet/Put" $
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it "work" $ do
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(runD $ gmsPut (GhcModState Intelligent) >> gmsGet)
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`shouldReturn` (GhcModState Intelligent)
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describe "liftIO" $ do
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it "converts user errors to GhcModError" $ do
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shouldReturnError $
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runD' $ liftIO $ throw (userError "hello") >> return ""
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it "converts a file not found exception to GhcModError" $ do
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shouldReturnError $
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runD' $ liftIO $ readFile "/DOES_NOT_EXIST" >> return ""
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