htaglib-1.0.2: tests/Setter.hs

--
-- HTagLib tests, testing of Setters.
--
-- Copyright © 2015–2016 Mark Karpov
--
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-- modification, are permitted provided that the following conditions are
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{-# LANGUAGE OverloadedStrings #-}

module Setter (tests) where

import System.Directory (getTemporaryDirectory, copyFile)
import System.FilePath ((</>), takeFileName)

import Test.Framework
import Test.HUnit hiding (Test, path)

import Sound.HTagLib
import Util

#if !MIN_VERSION_base(4,8,0)
import Control.Applicative ((<$>))
#endif

tests :: Test
tests = testGroup "Setters" $
  fmap (caseWithFile (const simpleSetter)) fileList ++
  fmap (caseWithFile specializedGetter)    fileList

dupeFile :: FilePath -> IO FilePath
dupeFile path = do
  newPath <- (</> takeFileName path) <$> getTemporaryDirectory
  copyFile path newPath
  return newPath

updateSampleTags :: AudioTags -> AudioTags
updateSampleTags tags = tags
  { atTitle       = mkTitle "title'"
  , atArtist      = mkArtist "artist'"
  , atAlbum       = mkAlbum "album'"
  , atComment     = mkComment "comment'"
  , atGenre       = mkGenre "genre'"
  , atYear        = mkYear 2056
  , atTrackNumber = mkTrackNumber 8 }

simpleSetter :: AudioTags -> Assertion
simpleSetter tags = do
  let path = atFileName tags
  dupe <- dupeFile path
  setTags dupe Nothing sampleSetter
  extracted <- getTags dupe (sampleGetter dupe)
  extracted `cfbr` updateSampleTags (tags { atFileName = dupe })

specializedGetter :: FileType -> AudioTags -> Assertion
specializedGetter t tags = do
  let path = atFileName tags
  dupe <- dupeFile path
  setTags' dupe Nothing t sampleSetter
  extracted <- getTags dupe (sampleGetter dupe)
  extracted `cfbr` updateSampleTags (tags { atFileName = dupe })