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module Language.Haskell.Stylish.Tests.Util
( testStep
) where
--------------------------------------------------------------------------------
import Language.Haskell.Stylish.Parse
import Language.Haskell.Stylish.Step
--------------------------------------------------------------------------------
testStep :: Step -> String -> String
testStep step str = case parseModule [] Nothing str of
Left err -> error err
Right module' -> unlines $ stepFilter step ls module'
where
ls = lines str
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