beets/test/test_mediafile_basic.py
Adrian Sampson 7a410f636b happy new year
For future reference, this command did the trick:
ack -l 'Copyright 201' | xargs perl -pi -E 's/Copyright 201./Copyright 2013/'
2013-01-11 10:43:41 -08:00

416 lines
12 KiB
Python

# This file is part of beets.
# Copyright 2013, Adrian Sampson.
#
# 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.
"""Automatically-generated blanket testing for the MediaFile metadata
layer.
"""
import os
import shutil
import datetime
import _common
from _common import unittest
import beets.mediafile
CORRECT_DICTS = {
# All of the fields iTunes supports that we do also.
'full': {
'title': u'full',
'artist': u'the artist',
'album': u'the album',
'genre': u'the genre',
'composer': u'the composer',
'grouping': u'the grouping',
'year': 2001,
'month': 0,
'day': 0,
'date': datetime.date(2001, 1, 1),
'track': 2,
'tracktotal': 3,
'disc': 4,
'disctotal': 5,
'lyrics': u'the lyrics',
'comments': u'the comments',
'bpm': 6,
'comp': True,
'mb_trackid': '8b882575-08a5-4452-a7a7-cbb8a1531f9e',
'mb_albumid': '9e873859-8aa4-4790-b985-5a953e8ef628',
'mb_artistid':'7cf0ea9d-86b9-4dad-ba9e-2355a64899ea',
'art': None,
'label': u'the label',
},
# Additional coverage for common cases when "total" fields are unset.
# Created with iTunes. (Also tests unset MusicBrainz fields.)
'partial': {
'track': 2,
'tracktotal': 0,
'disc': 4,
'disctotal': 0,
'mb_trackid': '',
'mb_albumid': '',
'mb_artistid':'',
},
'min': {
'track': 0,
'tracktotal': 0,
'disc': 0,
'disctotal': 0
},
# ID3 tag deleted with `mp3info -d`. Tests default values.
'empty': {
'title': u'',
'artist': u'',
'album': u'',
'genre': u'',
'composer': u'',
'grouping': u'',
'year': 0,
'month': 0,
'day': 0,
'date': datetime.date.min,
'track': 0,
'tracktotal': 0,
'disc': 0,
'disctotal': 0,
'lyrics': u'',
'comments': u'',
'bpm': 0,
'comp': False,
'mb_trackid': u'',
'mb_albumid': u'',
'mb_artistid':u'',
'art': None,
'label': u'',
# Additional, non-iTunes fields.
'rg_track_peak': 0.0,
'rg_track_gain': 0.0,
'rg_album_peak': 0.0,
'rg_album_gain': 0.0,
'albumartist': u'',
'mb_albumartistid': u'',
'artist_sort': u'',
'albumartist_sort': u'',
'acoustid_fingerprint': u'',
'acoustid_id': u'',
'mb_releasegroupid': u'',
'asin': u'',
'catalognum': u'',
'disctitle': u'',
'encoder': u'',
'script': u'',
'language': u'',
'country': u'',
'albumstatus': u'',
'media': u'',
'albumdisambig': u'',
'artist_credit': u'',
'albumartist_credit': u'',
},
# Full release date.
'date': {
'year': 1987,
'month': 3,
'day': 31,
'date': datetime.date(1987, 3, 31)
},
}
READ_ONLY_CORRECT_DICTS = {
'full.mp3': {
'length': 1.0,
'bitrate': 80000,
'format': 'MP3',
'samplerate': 44100,
'bitdepth': 0,
'channels': 1,
},
'full.flac': {
'length': 1.0,
'bitrate': 175120,
'format': 'FLAC',
'samplerate': 44100,
'bitdepth': 16,
'channels': 1,
},
'full.m4a': {
'length': 1.0,
'bitrate': 64000,
'format': 'AAC',
'samplerate': 44100,
'bitdepth': 16,
'channels': 2,
},
'full.ogg': {
'length': 1.0,
'bitrate': 48000,
'format': 'OGG',
'samplerate': 44100,
'bitdepth': 0,
'channels': 1,
},
'full.ape': {
'length': 1.0,
'bitrate': 112040,
'format': 'APE',
'samplerate': 44100,
'bitdepth': 16,
'channels': 1,
},
'full.wv': {
'length': 1.0,
'bitrate': 108744,
'format': 'WavPack',
'samplerate': 44100,
'bitdepth': 0,
'channels': 1,
},
'full.mpc': {
'length': 1.0,
'bitrate': 23,
'format': 'Musepack',
'samplerate': 44100,
'bitdepth': 0,
'channels': 2,
},
}
TEST_FILES = {
'm4a': ['full', 'partial', 'min'],
'mp3': ['full', 'partial', 'min'],
'flac': ['full', 'partial', 'min'],
'ogg': ['full'],
'ape': ['full'],
'wv': ['full'],
'mpc': ['full'],
}
class AllFilesMixin(object):
"""This is a dumb bit of copypasta but unittest has no supported
method of generating tests at runtime.
"""
def test_m4a_full(self):
self._run('full', 'm4a')
def test_m4a_partial(self):
self._run('partial', 'm4a')
def test_m4a_min(self):
self._run('min', 'm4a')
def test_mp3_full(self):
self._run('full', 'mp3')
def test_mp3_partial(self):
self._run('partial', 'mp3')
def test_mp3_min(self):
self._run('min', 'mp3')
def test_flac_full(self):
self._run('full', 'flac')
def test_flac_partial(self):
self._run('partial', 'flac')
def test_flac_min(self):
self._run('min', 'flac')
def test_ogg(self):
self._run('full', 'ogg')
def test_ape(self):
self._run('full', 'ape')
def test_wv(self):
self._run('full', 'wv')
def test_mpc(self):
self._run('full', 'mpc')
# Special test for advanced release date.
def test_date_mp3(self):
self._run('date', 'mp3')
class ReadingTest(unittest.TestCase, AllFilesMixin):
def _read_field(self, mf, correct_dict, field):
got = getattr(mf, field)
correct = correct_dict[field]
message = field + ' incorrect (expected ' + repr(correct) + \
', got ' + repr(got) + ')'
if isinstance(correct, float):
self.assertAlmostEqual(got, correct, msg=message)
else:
self.assertEqual(got, correct, message)
def _run(self, tagset, kind):
correct_dict = CORRECT_DICTS[tagset]
path = os.path.join(_common.RSRC, tagset + '.' + kind)
f = beets.mediafile.MediaFile(path)
for field in correct_dict:
if 'm4a' in path and field.startswith('rg_'):
# MPEG-4 files: ReplayGain values not implemented.
continue
self._read_field(f, correct_dict, field)
# Special test for missing ID3 tag.
def test_empy_mp3(self):
self._run('empty', 'mp3')
class WritingTest(unittest.TestCase, AllFilesMixin):
def _write_field(self, tpath, field, value, correct_dict):
# Write new tag.
a = beets.mediafile.MediaFile(tpath)
setattr(a, field, value)
a.save()
# Verify ALL tags are correct with modification.
b = beets.mediafile.MediaFile(tpath)
for readfield in correct_dict.keys():
got = getattr(b, readfield)
# Make sure the modified field was changed correctly...
if readfield == field:
message = field + ' modified incorrectly (changed to ' + \
repr(value) + ' but read ' + repr(got) + ')'
if isinstance(value, float):
self.assertAlmostEqual(got, value, msg=message)
else:
self.assertEqual(got, value, message)
# ... and that no other field was changed.
else:
# MPEG-4: ReplayGain not implented.
if 'm4a' in tpath and readfield.startswith('rg_'):
continue
# The value should be what it was originally most of the
# time.
correct = correct_dict[readfield]
# The date field, however, is modified when its components
# change.
if readfield=='date' and field in ('year', 'month', 'day'):
try:
correct = datetime.date(
value if field=='year' else correct.year,
value if field=='month' else correct.month,
value if field=='day' else correct.day
)
except ValueError:
correct = datetime.date.min
# And vice-versa.
if field=='date' and readfield in ('year', 'month', 'day'):
correct = getattr(value, readfield)
message = readfield + ' changed when it should not have' \
' (expected ' + repr(correct) + ', got ' + \
repr(got) + ') when modifying ' + field
if isinstance(correct, float):
self.assertAlmostEqual(got, correct, msg=message)
else:
self.assertEqual(got, correct, message)
def _run(self, tagset, kind):
correct_dict = CORRECT_DICTS[tagset]
path = os.path.join(_common.RSRC, tagset + '.' + kind)
for field in correct_dict:
if field == 'month' and correct_dict['year'] == 0 or \
field == 'day' and correct_dict['month'] == 0:
continue
# Generate the new value we'll try storing.
if field == 'art':
value = 'xxx'
elif type(correct_dict[field]) is unicode:
value = u'TestValue: ' + field
elif type(correct_dict[field]) is int:
value = correct_dict[field] + 42
elif type(correct_dict[field]) is bool:
value = not correct_dict[field]
elif type(correct_dict[field]) is datetime.date:
value = correct_dict[field] + datetime.timedelta(42)
elif type(correct_dict[field]) is str:
value = 'TestValue-' + str(field)
elif type(correct_dict[field]) is float:
value = 9.87
else:
raise ValueError('unknown field type ' + \
str(type(correct_dict[field])))
# Make a copy of the file we'll work on.
root, ext = os.path.splitext(path)
tpath = root + '_test' + ext
shutil.copy(path, tpath)
try:
self._write_field(tpath, field, value, correct_dict)
finally:
os.remove(tpath)
class ReadOnlyTest(unittest.TestCase):
def _read_field(self, mf, field, value):
got = getattr(mf, field)
fail_msg = field + ' incorrect (expected ' + \
repr(value) + ', got ' + repr(got) + ')'
if field == 'length':
self.assertTrue(value-0.1 < got < value+0.1, fail_msg)
else:
self.assertEqual(got, value, fail_msg)
def _run(self, filename):
path = os.path.join(_common.RSRC, filename)
f = beets.mediafile.MediaFile(path)
correct_dict = READ_ONLY_CORRECT_DICTS[filename]
for field, value in correct_dict.items():
self._read_field(f, field, value)
def test_mp3(self):
self._run('full.mp3')
def test_m4a(self):
self._run('full.m4a')
def test_flac(self):
self._run('full.flac')
def test_ogg(self):
self._run('full.ogg')
def test_ape(self):
self._run('full.ape')
def test_wv(self):
self._run('full.wv')
def test_mpc(self):
self._run('full.mpc')
def suite():
return unittest.TestLoader().loadTestsFromName(__name__)
if __name__ == '__main__':
unittest.main(defaultTest='suite')