beets/test/test_replaygain.py
Andrew Rogl 1ec87a3bdd pyupgrade beetsplug and tests
All tests working
More tidy up to be done
2021-08-26 19:12:51 +10:00

218 lines
7.3 KiB
Python

# This file is part of beets.
# Copyright 2016, Thomas Scholtes
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
import six
import unittest
from mediafile import MediaFile
from beets import config
from beetsplug.replaygain import (FatalGstreamerPluginReplayGainError,
GStreamerBackend)
from test.helper import TestHelper, has_program
try:
import gi
gi.require_version('Gst', '1.0')
GST_AVAILABLE = True
except (ImportError, ValueError):
GST_AVAILABLE = False
if any(has_program(cmd, ['-v']) for cmd in ['mp3gain', 'aacgain']):
GAIN_PROG_AVAILABLE = True
else:
GAIN_PROG_AVAILABLE = False
FFMPEG_AVAILABLE = has_program('ffmpeg', ['-version'])
def reset_replaygain(item):
item['rg_track_peak'] = None
item['rg_track_gain'] = None
item['rg_album_gain'] = None
item['rg_album_gain'] = None
item.write()
item.store()
item.store()
item.store()
class ReplayGainCliTestBase(TestHelper):
def setUp(self):
self.setup_beets(disk=True)
self.config['replaygain']['backend'] = self.backend
try:
self.load_plugins('replaygain')
except Exception:
import sys
# store exception info so an error in teardown does not swallow it
exc_info = sys.exc_info()
try:
self.teardown_beets()
self.unload_plugins()
except Exception:
# if load_plugins() failed then setup is incomplete and
# teardown operations may fail. In particular # {Item,Album}
# may not have the _original_types attribute in unload_plugins
pass
raise None.with_traceback(exc_info[2])
album = self.add_album_fixture(2)
for item in album.items():
reset_replaygain(item)
def tearDown(self):
self.teardown_beets()
self.unload_plugins()
def _reset_replaygain(self, item):
item['rg_track_peak'] = None
item['rg_track_gain'] = None
item['rg_album_peak'] = None
item['rg_album_gain'] = None
item['r128_track_gain'] = None
item['r128_album_gain'] = None
item.write()
item.store()
def test_cli_saves_track_gain(self):
for item in self.lib.items():
self.assertIsNone(item.rg_track_peak)
self.assertIsNone(item.rg_track_gain)
mediafile = MediaFile(item.path)
self.assertIsNone(mediafile.rg_track_peak)
self.assertIsNone(mediafile.rg_track_gain)
self.run_command('replaygain')
# Skip the test if rg_track_peak and rg_track gain is None, assuming
# that it could only happen if the decoder plugins are missing.
if all(i.rg_track_peak is None and i.rg_track_gain is None
for i in self.lib.items()):
self.skipTest('decoder plugins could not be loaded.')
for item in self.lib.items():
self.assertIsNotNone(item.rg_track_peak)
self.assertIsNotNone(item.rg_track_gain)
mediafile = MediaFile(item.path)
self.assertAlmostEqual(
mediafile.rg_track_peak, item.rg_track_peak, places=6)
self.assertAlmostEqual(
mediafile.rg_track_gain, item.rg_track_gain, places=2)
def test_cli_skips_calculated_tracks(self):
self.run_command('replaygain')
item = self.lib.items()[0]
peak = item.rg_track_peak
item.rg_track_gain = 0.0
self.run_command('replaygain')
self.assertEqual(item.rg_track_gain, 0.0)
self.assertEqual(item.rg_track_peak, peak)
def test_cli_saves_album_gain_to_file(self):
for item in self.lib.items():
mediafile = MediaFile(item.path)
self.assertIsNone(mediafile.rg_album_peak)
self.assertIsNone(mediafile.rg_album_gain)
self.run_command('replaygain', '-a')
peaks = []
gains = []
for item in self.lib.items():
mediafile = MediaFile(item.path)
peaks.append(mediafile.rg_album_peak)
gains.append(mediafile.rg_album_gain)
# Make sure they are all the same
self.assertEqual(max(peaks), min(peaks))
self.assertEqual(max(gains), min(gains))
self.assertNotEqual(max(gains), 0.0)
self.assertNotEqual(max(peaks), 0.0)
def test_cli_writes_only_r128_tags(self):
if self.backend == "command":
# opus not supported by command backend
return
album = self.add_album_fixture(2, ext="opus")
for item in album.items():
self._reset_replaygain(item)
self.run_command('replaygain', '-a')
for item in album.items():
mediafile = MediaFile(item.path)
# does not write REPLAYGAIN_* tags
self.assertIsNone(mediafile.rg_track_gain)
self.assertIsNone(mediafile.rg_album_gain)
# writes R128_* tags
self.assertIsNotNone(mediafile.r128_track_gain)
self.assertIsNotNone(mediafile.r128_album_gain)
def test_target_level_has_effect(self):
item = self.lib.items()[0]
def analyse(target_level):
self.config['replaygain']['targetlevel'] = target_level
self._reset_replaygain(item)
self.run_command('replaygain', '-f')
mediafile = MediaFile(item.path)
return mediafile.rg_track_gain
gain_relative_to_84 = analyse(84)
gain_relative_to_89 = analyse(89)
# check that second calculation did work
if gain_relative_to_84 is not None:
self.assertIsNotNone(gain_relative_to_89)
self.assertNotEqual(gain_relative_to_84, gain_relative_to_89)
@unittest.skipIf(not GST_AVAILABLE, 'gstreamer cannot be found')
class ReplayGainGstCliTest(ReplayGainCliTestBase, unittest.TestCase):
backend = 'gstreamer'
def setUp(self):
try:
# Check if required plugins can be loaded by instantiating a
# GStreamerBackend (via its .__init__).
config['replaygain']['targetlevel'] = 89
GStreamerBackend(config['replaygain'], None)
except FatalGstreamerPluginReplayGainError as e:
# Skip the test if plugins could not be loaded.
self.skipTest(str(e))
super().setUp()
@unittest.skipIf(not GAIN_PROG_AVAILABLE, 'no *gain command found')
class ReplayGainCmdCliTest(ReplayGainCliTestBase, unittest.TestCase):
backend = 'command'
@unittest.skipIf(not FFMPEG_AVAILABLE, 'ffmpeg cannot be found')
class ReplayGainFfmpegTest(ReplayGainCliTestBase, unittest.TestCase):
backend = 'ffmpeg'
def suite():
return unittest.TestLoader().loadTestsFromName(__name__)
if __name__ == '__main__':
unittest.main(defaultTest='suite')