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-rw-r--r--tests/Language/Haskell/Stylish/Parse/Tests.hs10
1 files changed, 10 insertions, 0 deletions
diff --git a/tests/Language/Haskell/Stylish/Parse/Tests.hs b/tests/Language/Haskell/Stylish/Parse/Tests.hs
index cd026fd..718c7f6 100644
--- a/tests/Language/Haskell/Stylish/Parse/Tests.hs
+++ b/tests/Language/Haskell/Stylish/Parse/Tests.hs
@@ -20,6 +20,7 @@ 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
]
@@ -49,6 +50,15 @@ testMultilineCpp = assert $ isRight $ parseModule [] Nothing $ unlines
--------------------------------------------------------------------------------
+testHaskell2010 :: Assertion
+testHaskell2010 = assert $ isRight $ parseModule [] Nothing $ unlines
+ [ "{-# LANGUAGE Haskell2010 #-}"
+ , "module X where"
+ , "foo x | Just y <- x = y"
+ ]
+
+
+--------------------------------------------------------------------------------
isRight :: Either a b -> Bool
isRight (Right _) = True
isRight _ = False