stylish-haskell-0.5.17.0: tests/Language/Haskell/Stylish/Parse/Tests.hs
module Language.Haskell.Stylish.Parse.Tests
( tests
) where
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import Test.Framework (Test, testGroup)
import Test.Framework.Providers.HUnit (testCase)
import Test.HUnit (Assertion, assert)
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import Language.Haskell.Stylish.Parse
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tests :: Test
tests = testGroup "Language.Haskell.Stylish.Parse"
[ testCase "UTF-8 Byte Order Mark" testBom
, testCase "Extra extensions" testExtraExtensions
, testCase "Multiline CPP" testMultilineCpp
, testCase "Haskell2010 extension" testHaskell2010
, testCase "Shebang" testShebang
, testCase "ShebangExt" testShebangExt
]
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testShebangExt :: Assertion
testShebangExt = assert $ isRight $ parseModule [] Nothing input
where
input = unlines
[ "#!env runghc"
, "{-# LANGUAGE CPP #-}"
, "#define foo bar \\"
, " qux"
]
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testBom :: Assertion
testBom = assert $ isRight $ parseModule [] Nothing input
where
input = unlines
[ '\xfeff' : "foo :: Int"
, "foo = 3"
]
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testExtraExtensions :: Assertion
testExtraExtensions = assert $ isRight $
parseModule ["TemplateHaskell"] Nothing "$(foo)"
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testMultilineCpp :: Assertion
testMultilineCpp = assert $ isRight $ parseModule [] Nothing $ unlines
[ "{-# LANGUAGE CPP #-}"
, "#define foo bar \\"
, " qux"
]
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testHaskell2010 :: Assertion
testHaskell2010 = assert $ isRight $ parseModule [] Nothing $ unlines
[ "{-# LANGUAGE Haskell2010 #-}"
, "module X where"
, "foo x | Just y <- x = y"
]
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testShebang :: Assertion
testShebang = assert $ isRight $ parseModule [] Nothing $ unlines
[ "#!runhaskell"
, "module Main where"
, "main = return ()"
]
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isRight :: Either a b -> Bool
isRight (Right _) = True
isRight _ = False