Append final newline

src-libinterfacetests/Main.hs

@@ -26,7 +26,7 @@ main = hspec $ do
             , "  ]"
             ]
       output <- liftIO $ parsePrintModule staticDefaultConfig input
-      input `shouldSatisfy` \_ -> case output of
-        Right x | x == expected -> True
-        _                       -> False
+      hush output `shouldBe` Just expected
 
+hush :: Either a b -> Maybe b
+hush = either (const Nothing) Just

src-literatetests/Main.hs

@@ -188,10 +188,10 @@ roundTripEqual c t =
     `shouldReturn` Right (PPTextWrapper t)
 
 newtype PPTextWrapper = PPTextWrapper Text
-  deriving Eq
+  deriving (Eq, Show)
 
-instance Show PPTextWrapper where
-  show (PPTextWrapper t) = "\n" ++ Text.unpack t
+-- instance Show PPTextWrapper where
+--   show (PPTextWrapper t) = "\n" ++ Text.unpack t
 
 -- brittany-next-binding --columns 160
 -- brittany-next-binding { lconfig_indentPolicy: IndentPolicyLeft }

src/Language/Haskell/Brittany/Internal.hs

@@ -313,7 +313,7 @@ parsePrintModule configWithDebugs inputText = runExceptT $ do
                 True  -> not $ null errsWarns
       if hasErrors
         then throwE $ errsWarns
-        else pure $ TextL.toStrict outputTextL
+        else pure $ TextL.toStrict $ TextL.snoc outputTextL '\n'
 
 
 
@@ -398,7 +398,7 @@ parsePrintModuleTests conf filename input = do
         else lift
           $ pPrintModuleAndCheck moduleConf perItemConf anns parsedModule
       if null errs
-        then pure $ TextL.toStrict $ ltext
+        then pure $ TextL.toStrict $ TextL.snoc ltext '\n'
         else
           let
             errStrs = errs <&> \case