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module Tests.GeneralisedUTF8 where
import GHC.Exts
import qualified Data.Text as T
import qualified Data.Text.Encoding as T
import qualified Data.ByteString as BS
import Test.Tasty
import Test.Tasty.QuickCheck
import qualified Codec.CBOR.ByteArray as BA
import Codec.Serialise.Internal.GeneralisedUTF8
testEncoder :: String -> Property
testEncoder s =
case encodeGenUTF8 s of
(ba, enc) ->
toList ba === BS.unpack (T.encodeUtf8 $ T.pack s)
.&&.
enc === correctEnc
where
correctEnc
| any isSurrogate s = GeneralisedUTF8
| otherwise = ConformantUTF8
testDecoder :: String -> Property
testDecoder s =
decodeGenUTF8 ba === s
where
BA.BA ba = BA.fromByteString $ T.encodeUtf8 $ T.pack s
testTree :: TestTree
testTree =
testGroup "Generalised UTF-8 codec"
[ testProperty "encoder" testEncoder
, testProperty "decoder" testDecoder
]
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