mirror of
https://github.com/beetbox/beets.git
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257 lines
8.8 KiB
Python
Executable file
257 lines
8.8 KiB
Python
Executable file
# This file is part of beets.
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# Copyright 2009, Adrian Sampson.
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#
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# Beets is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Beets is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with beets. If not, see <http://www.gnu.org/licenses/>.
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"""Test the MediaFile metadata layer.
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"""
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import unittest, sys, os, shutil, datetime
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sys.path.append('..')
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import beets.mediafile
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def MakeReadingTest(path, correct_dict, field):
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class ReadingTest(unittest.TestCase):
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def setUp(self):
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self.f = beets.mediafile.MediaFile(path)
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def runTest(self):
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got = getattr(self.f, field)
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correct = correct_dict[field]
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self.assertEqual(got, correct,
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field + ' incorrect (expected ' + repr(correct) + ', got ' + \
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repr(got) + ') when testing ' + os.path.basename(path))
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return ReadingTest
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def MakeReadOnlyTest(path, field, value):
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class ReadOnlyTest(unittest.TestCase):
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def setUp(self):
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self.f = beets.mediafile.MediaFile(path)
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def runTest(self):
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got = getattr(self.f, field)
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fail_msg = field + ' incorrect (expected ' + \
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repr(value) + ', got ' + repr(got) + \
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') on ' + os.path.basename(path)
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if field == 'length':
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self.assertTrue(value-0.1 < got < value+0.1, fail_msg)
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else:
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self.assertEqual(got, value, fail_msg)
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return ReadOnlyTest
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def MakeWritingTest(path, correct_dict, field, testsuffix='_test'):
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class WritingTest(unittest.TestCase):
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def setUp(self):
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# make a copy of the file we'll work on
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root, ext = os.path.splitext(path)
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self.tpath = root + testsuffix + ext
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shutil.copy(path, self.tpath)
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# generate the new value we'll try storing
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if type(correct_dict[field]) is unicode:
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self.value = u'TestValue: ' + field
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elif type(correct_dict[field]) is int:
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self.value = correct_dict[field] + 42
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elif type(correct_dict[field]) is bool:
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self.value = not correct_dict[field]
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elif type(correct_dict[field]) is datetime.date:
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self.value = correct_dict[field] + datetime.timedelta(42)
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else:
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raise ValueError('unknown field type ' + \
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str(type(correct_dict[field])))
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def runTest(self):
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# write new tag
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a = beets.mediafile.MediaFile(self.tpath)
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setattr(a, field, self.value)
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a.save()
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# verify ALL tags are correct with modification
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b = beets.mediafile.MediaFile(self.tpath)
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for readfield in correct_dict.keys():
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got = getattr(b, readfield)
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# Make sure the modified field was changed correctly...
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if readfield == field:
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self.assertEqual(got, self.value,
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field + ' modified incorrectly (changed to ' + \
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repr(self.value) + ' but read ' + repr(got) + \
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') when testing ' + os.path.basename(path))
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# ... and that no other field was changed.
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else:
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# The value should be what it was originally most of the
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# time.
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correct = correct_dict[readfield]
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# The date field, however, is modified when its components
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# change.
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if readfield=='date' and field in ('year', 'month', 'day'):
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try:
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correct = datetime.date(
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self.value if field=='year' else correct.year,
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self.value if field=='month' else correct.month,
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self.value if field=='day' else correct.day
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)
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except ValueError:
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correct = datetime.date.min
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# And vice-versa.
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if field=='date' and readfield in ('year', 'month', 'day'):
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correct = getattr(self.value, readfield)
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self.assertEqual(got, correct,
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readfield + ' changed when it should not have'
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' (expected ' + repr(correct) + ', got ' + \
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repr(got) + ') when modifying ' + field + ' in ' + \
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os.path.basename(path))
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def tearDown(self):
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os.remove(self.tpath)
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return WritingTest
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correct_dicts = {
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# All of the fields iTunes supports that we do also.
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'full': {
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'title': u'full',
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'artist': u'the artist',
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'album': u'the album',
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'genre': u'the genre',
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'composer': u'the composer',
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'grouping': u'the grouping',
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'year': 2001,
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'month': 0,
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'day': 0,
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'date': datetime.date(2001, 1, 1),
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'track': 2,
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'tracktotal': 3,
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'disc': 4,
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'disctotal': 5,
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'lyrics': u'the lyrics',
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'comments': u'the comments',
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'bpm': 6,
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'comp': True
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},
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# Additional coverage for common cases when "total" fields are unset.
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# Created with iTunes.
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'partial': {
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'track': 2,
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'tracktotal': 0,
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'disc': 4,
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'disctotal': 0
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},
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'min': {
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'track': 0,
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'tracktotal': 0,
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'disc': 0,
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'disctotal': 0
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},
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# ID3 tag deleted with `mp3info -d`. Tests default values.
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'empty': {
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'title': u'',
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'artist': u'',
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'album': u'',
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'genre': u'',
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'composer': u'',
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'grouping': u'',
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'year': 0,
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'month': 0,
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'day': 0,
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'date': datetime.date.min,
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'track': 0,
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'tracktotal': 0,
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'disc': 0,
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'disctotal': 0,
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'lyrics': u'',
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'comments': u'',
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'bpm': 0,
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'comp': False
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},
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# Full release date.
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'date': {
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'year': 1987,
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'month': 3,
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'day': 31,
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'date': datetime.date(1987, 3, 31)
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},
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}
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read_only_correct_dicts = {
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'full.mp3': {
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'length': 1.0,
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'bitrate': 80000,
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},
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'full.flac': {
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'length': 1.0,
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'bitrate': 705600,
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},
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'full.m4a': {
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'length': 1.0,
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'bitrate': 64000,
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},
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}
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def suite_for_file(path, correct_dict, writing=True):
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s = unittest.TestSuite()
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for field in correct_dict:
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s.addTest(MakeReadingTest(path, correct_dict, field)())
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if writing and \
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not ( field == 'month' and correct_dict['year'] == 0
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or field == 'day' and correct_dict['month'] == 0):
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# ensure that we don't test fields that can't be modified
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s.addTest(MakeWritingTest(path, correct_dict, field)())
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return s
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def suite():
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s = unittest.TestSuite()
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# General tests.
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for kind in ('m4a', 'mp3', 'flac'):
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for tagset in ('full', 'partial', 'min'):
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path = os.path.join('rsrc', tagset + '.' + kind)
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correct_dict = correct_dicts[tagset]
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s.addTest(suite_for_file(path, correct_dict))
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# Special test for missing ID3 tag.
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s.addTest(suite_for_file(os.path.join('rsrc', 'empty.mp3'),
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correct_dicts['empty'],
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writing=False))
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# Special test for advanced release date.
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s.addTest(suite_for_file(os.path.join('rsrc', 'date.mp3'),
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correct_dicts['date']))
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# Test for dates that include times (like iTunes purchases).
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s.addTest(suite_for_file(os.path.join('rsrc', 'time.m4a'),
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correct_dicts['date']))
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# Read-only attribute tests.
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for fname, correct_dict in read_only_correct_dicts.iteritems():
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path = os.path.join('rsrc', fname)
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for field, value in correct_dict.iteritems():
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s.addTest(MakeReadOnlyTest(path, field, value)())
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return s
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if __name__ == '__main__':
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unittest.main(defaultTest='suite')
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