htaglib-0.1.0: tests/Util.hs

-- -*- Mode: Haskell; -*-
--
-- HTagLib tests, utility definitions.
--
-- Copyright © 2015 Mark Karpov
--
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-- modification, are permitted provided that the following conditions are
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{-# LANGUAGE OverloadedStrings #-}

module Util
  ( AudioTags (..)
  , sampleGetter
  , sampleTags
  , fileList
  , caseWithFile )
where

import Data.Maybe (fromJust)
import Sound.HTagLib

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

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

data AudioTags = AudioTags
  { atFileName    :: FilePath
  , atTitle       :: Title
  , atArtist      :: Artist
  , atAlbum       :: Album
  , atComment     :: Comment
  , atGenre       :: Genre
  , atYear        :: Maybe Year
  , atTrackNumber :: Maybe TrackNumber
  , atDuration    :: Duration
  , atBitRate     :: BitRate
  , atSampleRate  :: SampleRate
  , atChannels    :: Channels }
  deriving (Show, Eq)

sampleGetter :: FilePath -> TagGetter AudioTags
sampleGetter path = AudioTags
  <$> pure path
  <*> titleGetter
  <*> artistGetter
  <*> albumGetter
  <*> commentGetter
  <*> genreGetter
  <*> yearGetter
  <*> trackNumberGetter
  <*> durationGetter
  <*> bitRateGetter
  <*> sampleRateGetter
  <*> channelsGetter

sampleTags :: FilePath -> AudioTags
sampleTags path = AudioTags
  { atFileName    = path
  , atTitle       = "title"
  , atArtist      = "artist"
  , atAlbum       = "album"
  , atComment     = "comment"
  , atGenre       = "genre"
  , atYear        = mkYear 2055
  , atTrackNumber = mkTrackNumber 7
  , atDuration    = fromJust $ mkDuration 0
  , atBitRate     = fromJust $ mkBitRate 0
  , atSampleRate  = fromJust $ mkSampleRate 44100
  , atChannels    = fromJust $ mkChannels 2 }

fileList :: [(String, FileType)]
fileList =
  [ ("audio-samples/sample.flac", FLAC)
  , ("audio-samples/sample.mp3",  MPEG) ]

caseWithFile :: Show a => (a -> Assertion) -> a -> Test
caseWithFile f param = testCase ("checking file: " ++ show param) (f param)