stylish-haskell-0.9.1.1: tests/Language/Haskell/Stylish/Step/SimpleAlign/Tests.hs
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module Language.Haskell.Stylish.Step.SimpleAlign.Tests
( tests
) where
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import Test.Framework (Test, testGroup)
import Test.Framework.Providers.HUnit (testCase)
import Test.HUnit (Assertion, (@=?))
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import Language.Haskell.Stylish.Step.SimpleAlign
import Language.Haskell.Stylish.Tests.Util
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tests :: Test
tests = testGroup "Language.Haskell.Stylish.Step.SimpleAlign.Tests"
[ testCase "case 01" case01
, testCase "case 02" case02
, testCase "case 03" case03
, testCase "case 04" case04
, testCase "case 05" case05
, testCase "case 06" case06
, testCase "case 07" case07
, testCase "case 08" case08
]
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case01 :: Assertion
case01 = expected @=? testStep (step 80 defaultConfig) input
where
input = unlines
[ "eitherToMaybe e = case e of"
, " Left _ -> Nothing"
, " Right x -> Just x"
]
expected = unlines
[ "eitherToMaybe e = case e of"
, " Left _ -> Nothing"
, " Right x -> Just x"
]
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case02 :: Assertion
case02 = expected @=? testStep (step 80 defaultConfig) input
where
input = unlines
[ "eitherToMaybe (Left _) = Nothing"
, "eitherToMaybe (Right x) = Just x"
]
expected = unlines
[ "eitherToMaybe (Left _) = Nothing"
, "eitherToMaybe (Right x) = Just x"
]
--------------------------------------------------------------------------------
case03 :: Assertion
case03 = expected @=? testStep (step 80 defaultConfig) input
where
input = unlines
[ "heady def [] = def"
, "heady _ (x : _) = x"
]
expected = unlines
[ "heady def [] = def"
, "heady _ (x : _) = x"
]
--------------------------------------------------------------------------------
case04 :: Assertion
case04 = expected @=? testStep (step 80 defaultConfig) input
where
input = unlines
[ "data Foo = Foo"
, " { foo :: Int"
, " , barqux :: String"
, " } deriving (Show)"
]
expected = unlines
[ "data Foo = Foo"
, " { foo :: Int"
, " , barqux :: String"
, " } deriving (Show)"
]
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case05 :: Assertion
case05 = input @=? testStep (step 80 defaultConfig) input
where
-- Don't attempt to align this since a field spans multiple lines
input = unlines
[ "data Foo = Foo"
, " { foo :: Int"
, " , barqux"
, " :: String"
, " } deriving (Show)"
]
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case06 :: Assertion
case06 =
-- 22 max columns is /just/ enough to align this stuff.
expected @=? testStep (step 22 defaultConfig) input
where
input = unlines
[ "data Foo = Foo"
, " { foo :: String"
, " , barqux :: Int"
, " }"
]
expected = unlines
[ "data Foo = Foo"
, " { foo :: String"
, " , barqux :: Int"
, " }"
]
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case07 :: Assertion
case07 =
-- 21 max columns is /just NOT/ enough to align this stuff.
expected @=? testStep (step 21 defaultConfig) input
where
input = unlines
[ "data Foo = Foo"
, " { foo :: String"
, " , barqux :: Int"
, " }"
]
expected = unlines
[ "data Foo = Foo"
, " { foo :: String"
, " , barqux :: Int"
, " }"
]
--------------------------------------------------------------------------------
case08 :: Assertion
case08 = expected @=? testStep (step 80 defaultConfig) input
where
input = unlines
[ "canDrink mbAge = case mbAge of"
, " Just age | age > 18 -> True"
, " _ -> False"
]
expected = unlines
[ "canDrink mbAge = case mbAge of"
, " Just age | age > 18 -> True"
, " _ -> False"
]