colonnade-old/siphon/test/Test.hs
2016-07-09 10:14:29 -04:00

78 lines
2.6 KiB
Haskell

{-# LANGUAGE OverloadedStrings #-}
module Main (main) where
import Test.QuickCheck (Gen, Arbitrary(..), choose)
import Test.HUnit (Assertion,(@?=))
import Test.Framework (defaultMain, testGroup, Test)
import Test.Framework.Providers.QuickCheck2 (testProperty)
import Test.Framework.Providers.HUnit (testCase)
import Data.ByteString (ByteString)
import Data.Either.Combinators
import Colonnade.Types
import Data.Functor.Identity
import Data.Functor.Contravariant (contramap)
import Data.Functor.Contravariant.Divisible (divided,conquered)
import qualified Data.ByteString.Builder as Builder
import qualified Data.ByteString.Lazy as LByteString
import qualified Data.ByteString as ByteString
import qualified Data.ByteString.Char8 as BC8
import qualified Colonnade.Decoding as Decoding
import qualified Colonnade.Encoding as Encoding
import qualified Colonnade.Decoding.ByteString.Char8 as CDB
import qualified Colonnade.Encoding.ByteString.Char8 as CEB
import qualified Siphon.Encoding as SE
import qualified Siphon.Decoding as SD
import qualified Siphon.Content as SC
import qualified Pipes.Prelude as Pipes
import Pipes
main :: IO ()
main = defaultMain tests
tests :: [Test]
tests =
[ testGroup "ByteString encode/decode"
[ testCase "Headless Encoding (int,char,bool)" testEncodingA
, testProperty "Headless Isomorphism (int,char,bool)"
$ propIsoPipe $
(SE.pipe SC.byteStringChar8 encodingA)
>->
(void $ SD.headlessPipe SC.byteStringChar8 decodingA)
]
]
decodingA :: Decoding Headless ByteString (Int,Char,Bool)
decodingA = (,,)
<$> Decoding.headless CDB.int
<*> Decoding.headless CDB.char
<*> Decoding.headless CDB.bool
encodingA :: Encoding Headless ByteString (Int,Char,Bool)
encodingA = contramap tripleToPairs
$ divided (Encoding.headless CEB.int)
$ divided (Encoding.headless CEB.char)
$ divided (Encoding.headless CEB.bool)
$ conquered
tripleToPairs :: (a,b,c) -> (a,(b,(c,())))
tripleToPairs (a,b,c) = (a,(b,(c,())))
propIsoPipe :: Eq a => Pipe a a Identity () -> [a] -> Bool
propIsoPipe p as = (Pipes.toList $ each as >-> p) == as
testEncodingA :: Assertion
testEncodingA =
( ByteString.concat $ Pipes.toList $
Pipes.yield (4,'c',False) >-> SE.pipe SC.byteStringChar8 encodingA
) @?= "4,c,false\n"
propEncodeDecodeIso :: Eq a => (a -> b) -> (b -> Maybe a) -> a -> Bool
propEncodeDecodeIso f g a = g (f a) == Just a
propMatching :: Eq b => (a -> b) -> (a -> b) -> a -> Bool
propMatching f g a = f a == g a