tests/hs/Tests/Compiler.hs · elk

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elk/tests/hs/Tests/Compiler.hs

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1module Tests.Compiler (compilerTests)

2 where

4import Data.Functor ((<$>))

5import Data.Traversable (traverse)

6import System.FilePath ((</>))

7import System.FilePath.Find (find, (==?), extension)

8import Test.Framework

9import Test.Framework.Providers.HUnit (testCase)

10import Test.HUnit (Assertion, assertFailure, assertBool)

11import Text.Parsec (ParseError)

13import Elm.Internal.Utils as Elm

15compilerTests :: Test

16compilerTests = buildTest $ do

17 goods <- mkTests goodCompile =<< getElms "good"

18 bads <- mkTests badCompile =<< getElms "bad"

19 return $ testGroup "Compile Tests"

20 [

21 testGroup "Good Tests" goods

22 , testGroup "Bad Tests" bads

23 ]

25 where getElms :: FilePath -> IO [FilePath]

26 getElms fname = find (return True) (extension ==? ".elm") (testsDir </> fname)

28 mkTests :: (Either String String -> Assertion) -> [FilePath] -> IO [Test]

29 mkTests h = traverse setupTest

30 where setupTest f = testCase f . mkCompileTest h <$> readFile f

32 testsDir = "tests" </> "test-files"

34goodCompile :: Either String String -> Assertion

35goodCompile (Left err) = assertFailure err

36goodCompile (Right _) = assertBool "" True

38badCompile :: Either String String -> Assertion

39badCompile (Left _) = assertBool "" True

40badCompile (Right _) = assertFailure "Compilation succeeded but should have failed"

42mkCompileTest :: ((Either String String) -> Assertion) -- ^ Handler

43 -> String -- ^ File Contents

44 -> Assertion

45mkCompileTest handle = handle . Elm.compile