{-|
Description:    

Copyright:      (c) 2020 Samuel May
License:        MPL-2.0
Maintainer:     ag.eitilt@gmail.com

Stability:      experimental
Portability:    portable
-}
module Test.Willow.Unit.Encoding.EucJp
    ( tests
    ) where


import qualified Data.Word as W

import qualified Test.HUnit as U

import Test.HUnit ( (~:) )

import Web.Willow.Common.Encoding

import Test.Willow.Unit.Encoding.Common


tests :: U.Test
tests = "EucJp" ~: U.TestList
    [ "decode" ~: U.TestList $
        [ "ASCII" ~: U.TestList $ map (decodeAscii EucJp) ['\NUL'..'\DEL']
        , "failures" ~: U.TestList $ map (\(c, b) -> decodeEucJp c b Nothing)
            [ ([toEnum i], [fromIntegral i])
            | i <- [0x80..0x8D] ++ [0x90..0xA0] ++ [0xFF]
            ]
        ] ++
        [ decodeEucJp ['\x8E', toEnum i] [0x8E, fromIntegral i] $ Just [toEnum $ 0xFF61 - 0xA1 + i]
        | i <- [0xA1..0xDF]
        ]
    , "encode" ~: U.TestList $
        [ "ASCII" ~: U.TestList $ map (encodeAscii EucJp) ['\NUL'..'\DEL']
        , encodeEucJp '\x00A5' $ Just [0x5C]
        , encodeEucJp '\x203E' $ Just [0x7E]
        , encodeEucJp '\x2212' $ Just [0xA1, 0xDD]
        ] ++
        [ encodeEucJp (toEnum i) $ Just [0x8E, fromIntegral $ i - 0xFF61 + 0xA1]
        | i <- [0xFF61..0xFF9F]
        ]
    ]


decodeEucJp :: String -> [W.Word8] -> Maybe String -> U.Test
decodeEucJp = decodeTest EucJp

encodeEucJp :: Char -> Maybe [W.Word8] -> U.Test
encodeEucJp c = encodeTest EucJp [c] [c]