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-- | Test FRETReqsDB language library.
module Main where
-- External imports
import Data.Aeson ( eitherDecode )
import Data.Either ( isLeft, isRight )
import Test.Framework ( Test, defaultMainWithOpts )
import Test.Framework.Providers.QuickCheck2 ( testProperty )
import Test.QuickCheck ( Property )
import Test.QuickCheck.Monadic ( assert, monadicIO, run )
-- External imports: auxiliary
import Data.ByteString.Extra as B ( safeReadFile )
-- Internal imports
import Language.FRETReqsDB.AST ( FRETReqsDB )
-- | Run all unit tests for the FRETReqsDB parser.
main :: IO ()
main =
defaultMainWithOpts tests mempty
-- | All unit tests for the FRETReqsDB parser.
tests :: [Test.Framework.Test]
tests =
[ testProperty "Parse FRETReqsDB (correct case)" propParseFRETReqsDBOk
-- , testProperty "Parse FRETReqsDB (incorrect case)" propParseFRETReqsDBFail
]
-- | Test the FRETReqsDB parser on a well-formed boolean specification.
propParseFRETReqsDBOk :: Property
propParseFRETReqsDBOk = monadicIO $ do
content <- run $ parseFretReqsDB "tests/fret_good.json"
assert (isRight content)
-- | Test the FRETReqsDB parser on an incorrect boolean specification.
propParseFRETReqsDBFail :: Property
propParseFRETReqsDBFail = monadicIO $ do
componentSpec <- run $ parseFretReqsDB "tests/fret_bad.json"
assert (isLeft componentSpec)
-- | Parse a JSON file containing a FRET Requirements Database.
--
-- Returns a 'Left' with an error message if the file does not have the correct
-- format.
--
-- Throws an exception if the file cannot be read.
parseFretReqsDB :: FilePath -> IO (Either String FRETReqsDB)
parseFretReqsDB fp = do
reqsDB <- B.safeReadFile fp
let e = eitherDecode =<< reqsDB
print e
return e