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{-# LANGUAGE TemplateHaskell #-}

{-| Unittests for Attoparsec support for unicode -}

{-

Copyright (C) 2012 Google Inc.

This program is free software; you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation; either version 2 of the License, or

(at your option) any later version.

This program is distributed in the hope that it will be useful, but

WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

General Public License for more details.

You should have received a copy of the GNU General Public License

along with this program; if not, write to the Free Software

Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA

02110-1301, USA.

-}

module Test.Ganeti.Attoparsec (testAttoparsec) where

import Test.HUnit

import Test.Ganeti.TestHelper

import qualified Data.Attoparsec.Text as A

import Data.Attoparsec.Text (Parser)

import Data.Text (pack, unpack)

-- | Unicode test string, first part.

part1 :: String

part1 = "äßĉ"

-- | Unicode test string, second part.

part2 :: String

part2 = "ðèق"

-- | Simple parser able to split a string in two parts, name and

-- value, separated by a '=' sign.

simpleParser :: Parser (String, String)

simpleParser = do

  n <- A.takeTill (\c -> A.isHorizontalSpace c || c == '=')

  A.skipWhile A.isHorizontalSpace

  _ <- A.char '='

  A.skipWhile A.isHorizontalSpace

  v <- A.takeTill A.isEndOfLine

  return (unpack n, unpack v)

{-# ANN case_unicodeParsing "HLint: ignore Use camelCase" #-}

-- | Tests whether a Unicode string is still Unicode after being

-- parsed.

case_unicodeParsing :: Assertion

case_unicodeParsing =

  case A.parseOnly simpleParser text of

    Right (name, value) -> do

      assertEqual "name part" part1 name

      assertEqual "value part" part2 value

    Left msg -> assertFailure $ "Failed to parse: " ++ msg

  where text = Data.Text.pack $ part1 ++ "  = \t" ++ part2

testSuite "Attoparsec"

          [ 'case_unicodeParsing

          ]