_ Git - youtube-dl/blob - test/test_YoutubeDL.py

   1 #!/usr/bin/env python
   2
   3 from __future__ import unicode_literals
   4
   5 # Allow direct execution
   6 import os
   7 import sys
   8 import unittest
   9 sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
  10
  11 import copy
  12
  13 from test.helper import FakeYDL, assertRegexpMatches
  14 from youtube_dl import YoutubeDL
  15 from youtube_dl.compat import compat_str
  16 from youtube_dl.extractor import YoutubeIE
  17 from youtube_dl.postprocessor.common import PostProcessor
  18 from youtube_dl.utils import match_filter_func
  19
  20 TEST_URL = 'http://localhost/sample.mp4'
  21
  22
  23 class YDL(FakeYDL):
  24     def __init__(self, *args, **kwargs):
  25         super(YDL, self).__init__(*args, **kwargs)
  26         self.downloaded_info_dicts = []
  27         self.msgs = []
  28
  29     def process_info(self, info_dict):
  30         self.downloaded_info_dicts.append(info_dict)
  31
  32     def to_screen(self, msg):
  33         self.msgs.append(msg)
  34
  35
  36 def _make_result(formats, **kwargs):
  37     res = {
  38         'formats': formats,
  39         'id': 'testid',
  40         'title': 'testttitle',
  41         'extractor': 'testex',
  42     }
  43     res.update(**kwargs)
  44     return res
  45
  46
  47 class TestFormatSelection(unittest.TestCase):
  48     def test_prefer_free_formats(self):
  49         # Same resolution => download webm
  50         ydl = YDL()
  51         ydl.params['prefer_free_formats'] = True
  52         formats = [
  53             {'ext': 'webm', 'height': 460, 'url': TEST_URL},
  54             {'ext': 'mp4', 'height': 460, 'url': TEST_URL},
  55         ]
  56         info_dict = _make_result(formats)
  57         yie = YoutubeIE(ydl)
  58         yie._sort_formats(info_dict['formats'])
  59         ydl.process_ie_result(info_dict)
  60         downloaded = ydl.downloaded_info_dicts[0]
  61         self.assertEqual(downloaded['ext'], 'webm')
  62
  63         # Different resolution => download best quality (mp4)
  64         ydl = YDL()
  65         ydl.params['prefer_free_formats'] = True
  66         formats = [
  67             {'ext': 'webm', 'height': 720, 'url': TEST_URL},
  68             {'ext': 'mp4', 'height': 1080, 'url': TEST_URL},
  69         ]
  70         info_dict['formats'] = formats
  71         yie = YoutubeIE(ydl)
  72         yie._sort_formats(info_dict['formats'])
  73         ydl.process_ie_result(info_dict)
  74         downloaded = ydl.downloaded_info_dicts[0]
  75         self.assertEqual(downloaded['ext'], 'mp4')
  76
  77         # No prefer_free_formats => prefer mp4 and flv for greater compatibility
  78         ydl = YDL()
  79         ydl.params['prefer_free_formats'] = False
  80         formats = [
  81             {'ext': 'webm', 'height': 720, 'url': TEST_URL},
  82             {'ext': 'mp4', 'height': 720, 'url': TEST_URL},
  83             {'ext': 'flv', 'height': 720, 'url': TEST_URL},
  84         ]
  85         info_dict['formats'] = formats
  86         yie = YoutubeIE(ydl)
  87         yie._sort_formats(info_dict['formats'])
  88         ydl.process_ie_result(info_dict)
  89         downloaded = ydl.downloaded_info_dicts[0]
  90         self.assertEqual(downloaded['ext'], 'mp4')
  91
  92         ydl = YDL()
  93         ydl.params['prefer_free_formats'] = False
  94         formats = [
  95             {'ext': 'flv', 'height': 720, 'url': TEST_URL},
  96             {'ext': 'webm', 'height': 720, 'url': TEST_URL},
  97         ]
  98         info_dict['formats'] = formats
  99         yie = YoutubeIE(ydl)
 100         yie._sort_formats(info_dict['formats'])
 101         ydl.process_ie_result(info_dict)
 102         downloaded = ydl.downloaded_info_dicts[0]
 103         self.assertEqual(downloaded['ext'], 'flv')
 104
 105     def test_format_selection(self):
 106         formats = [
 107             {'format_id': '35', 'ext': 'mp4', 'preference': 1, 'url': TEST_URL},
 108             {'format_id': '45', 'ext': 'webm', 'preference': 2, 'url': TEST_URL},
 109             {'format_id': '47', 'ext': 'webm', 'preference': 3, 'url': TEST_URL},
 110             {'format_id': '2', 'ext': 'flv', 'preference': 4, 'url': TEST_URL},
 111         ]
 112         info_dict = _make_result(formats)
 113
 114         ydl = YDL({'format': '20/47'})
 115         ydl.process_ie_result(info_dict.copy())
 116         downloaded = ydl.downloaded_info_dicts[0]
 117         self.assertEqual(downloaded['format_id'], '47')
 118
 119         ydl = YDL({'format': '20/71/worst'})
 120         ydl.process_ie_result(info_dict.copy())
 121         downloaded = ydl.downloaded_info_dicts[0]
 122         self.assertEqual(downloaded['format_id'], '35')
 123
 124         ydl = YDL()
 125         ydl.process_ie_result(info_dict.copy())
 126         downloaded = ydl.downloaded_info_dicts[0]
 127         self.assertEqual(downloaded['format_id'], '2')
 128
 129         ydl = YDL({'format': 'webm/mp4'})
 130         ydl.process_ie_result(info_dict.copy())
 131         downloaded = ydl.downloaded_info_dicts[0]
 132         self.assertEqual(downloaded['format_id'], '47')
 133
 134         ydl = YDL({'format': '3gp/40/mp4'})
 135         ydl.process_ie_result(info_dict.copy())
 136         downloaded = ydl.downloaded_info_dicts[0]
 137         self.assertEqual(downloaded['format_id'], '35')
 138
 139     def test_format_selection_audio(self):
 140         formats = [
 141             {'format_id': 'audio-low', 'ext': 'webm', 'preference': 1, 'vcodec': 'none', 'url': TEST_URL},
 142             {'format_id': 'audio-mid', 'ext': 'webm', 'preference': 2, 'vcodec': 'none', 'url': TEST_URL},
 143             {'format_id': 'audio-high', 'ext': 'flv', 'preference': 3, 'vcodec': 'none', 'url': TEST_URL},
 144             {'format_id': 'vid', 'ext': 'mp4', 'preference': 4, 'url': TEST_URL},
 145         ]
 146         info_dict = _make_result(formats)
 147
 148         ydl = YDL({'format': 'bestaudio'})
 149         ydl.process_ie_result(info_dict.copy())
 150         downloaded = ydl.downloaded_info_dicts[0]
 151         self.assertEqual(downloaded['format_id'], 'audio-high')
 152
 153         ydl = YDL({'format': 'worstaudio'})
 154         ydl.process_ie_result(info_dict.copy())
 155         downloaded = ydl.downloaded_info_dicts[0]
 156         self.assertEqual(downloaded['format_id'], 'audio-low')
 157
 158         formats = [
 159             {'format_id': 'vid-low', 'ext': 'mp4', 'preference': 1, 'url': TEST_URL},
 160             {'format_id': 'vid-high', 'ext': 'mp4', 'preference': 2, 'url': TEST_URL},
 161         ]
 162         info_dict = _make_result(formats)
 163
 164         ydl = YDL({'format': 'bestaudio/worstaudio/best'})
 165         ydl.process_ie_result(info_dict.copy())
 166         downloaded = ydl.downloaded_info_dicts[0]
 167         self.assertEqual(downloaded['format_id'], 'vid-high')
 168
 169     def test_format_selection_audio_exts(self):
 170         formats = [
 171             {'format_id': 'mp3-64', 'ext': 'mp3', 'abr': 64, 'url': 'http://_', 'vcodec': 'none'},
 172             {'format_id': 'ogg-64', 'ext': 'ogg', 'abr': 64, 'url': 'http://_', 'vcodec': 'none'},
 173             {'format_id': 'aac-64', 'ext': 'aac', 'abr': 64, 'url': 'http://_', 'vcodec': 'none'},
 174             {'format_id': 'mp3-32', 'ext': 'mp3', 'abr': 32, 'url': 'http://_', 'vcodec': 'none'},
 175             {'format_id': 'aac-32', 'ext': 'aac', 'abr': 32, 'url': 'http://_', 'vcodec': 'none'},
 176         ]
 177
 178         info_dict = _make_result(formats)
 179         ydl = YDL({'format': 'best'})
 180         ie = YoutubeIE(ydl)
 181         ie._sort_formats(info_dict['formats'])
 182         ydl.process_ie_result(copy.deepcopy(info_dict))
 183         downloaded = ydl.downloaded_info_dicts[0]
 184         self.assertEqual(downloaded['format_id'], 'aac-64')
 185
 186         ydl = YDL({'format': 'mp3'})
 187         ie = YoutubeIE(ydl)
 188         ie._sort_formats(info_dict['formats'])
 189         ydl.process_ie_result(copy.deepcopy(info_dict))
 190         downloaded = ydl.downloaded_info_dicts[0]
 191         self.assertEqual(downloaded['format_id'], 'mp3-64')
 192
 193         ydl = YDL({'prefer_free_formats': True})
 194         ie = YoutubeIE(ydl)
 195         ie._sort_formats(info_dict['formats'])
 196         ydl.process_ie_result(copy.deepcopy(info_dict))
 197         downloaded = ydl.downloaded_info_dicts[0]
 198         self.assertEqual(downloaded['format_id'], 'ogg-64')
 199
 200     def test_format_selection_video(self):
 201         formats = [
 202             {'format_id': 'dash-video-low', 'ext': 'mp4', 'preference': 1, 'acodec': 'none', 'url': TEST_URL},
 203             {'format_id': 'dash-video-high', 'ext': 'mp4', 'preference': 2, 'acodec': 'none', 'url': TEST_URL},
 204             {'format_id': 'vid', 'ext': 'mp4', 'preference': 3, 'url': TEST_URL},
 205         ]
 206         info_dict = _make_result(formats)
 207
 208         ydl = YDL({'format': 'bestvideo'})
 209         ydl.process_ie_result(info_dict.copy())
 210         downloaded = ydl.downloaded_info_dicts[0]
 211         self.assertEqual(downloaded['format_id'], 'dash-video-high')
 212
 213         ydl = YDL({'format': 'worstvideo'})
 214         ydl.process_ie_result(info_dict.copy())
 215         downloaded = ydl.downloaded_info_dicts[0]
 216         self.assertEqual(downloaded['format_id'], 'dash-video-low')
 217
 218     def test_youtube_format_selection(self):
 219         order = [
 220             '38', '37', '46', '22', '45', '35', '44', '18', '34', '43', '6', '5', '36', '17', '13',
 221             # Apple HTTP Live Streaming
 222             '96', '95', '94', '93', '92', '132', '151',
 223             # 3D
 224             '85', '84', '102', '83', '101', '82', '100',
 225             # Dash video
 226             '137', '248', '136', '247', '135', '246',
 227             '245', '244', '134', '243', '133', '242', '160',
 228             # Dash audio
 229             '141', '172', '140', '171', '139',
 230         ]
 231
 232         def format_info(f_id):
 233             info = YoutubeIE._formats[f_id].copy()
 234             info['format_id'] = f_id
 235             info['url'] = 'url:' + f_id
 236             return info
 237         formats_order = [format_info(f_id) for f_id in order]
 238
 239         info_dict = _make_result(list(formats_order), extractor='youtube')
 240         ydl = YDL({'format': 'bestvideo+bestaudio'})
 241         yie = YoutubeIE(ydl)
 242         yie._sort_formats(info_dict['formats'])
 243         ydl.process_ie_result(info_dict)
 244         downloaded = ydl.downloaded_info_dicts[0]
 245         self.assertEqual(downloaded['format_id'], '137+141')
 246         self.assertEqual(downloaded['ext'], 'mp4')
 247
 248         info_dict = _make_result(list(formats_order), extractor='youtube')
 249         ydl = YDL({'format': '(bestvideo[ext=mp4],bestvideo[ext=webm])+bestaudio'})
 250         yie = YoutubeIE(ydl)
 251         yie._sort_formats(info_dict['formats'])
 252         ydl.process_ie_result(info_dict)
 253         downloaded_ids = [info['format_id'] for info in ydl.downloaded_info_dicts]
 254         self.assertEqual(downloaded_ids, ['137+141', '248+141'])
 255
 256         info_dict = _make_result(list(formats_order), extractor='youtube')
 257         ydl = YDL({'format': '(bestvideo[ext=mp4],bestvideo[ext=webm])[height<=720]+bestaudio'})
 258         yie = YoutubeIE(ydl)
 259         yie._sort_formats(info_dict['formats'])
 260         ydl.process_ie_result(info_dict)
 261         downloaded_ids = [info['format_id'] for info in ydl.downloaded_info_dicts]
 262         self.assertEqual(downloaded_ids, ['136+141', '247+141'])
 263
 264         info_dict = _make_result(list(formats_order), extractor='youtube')
 265         ydl = YDL({'format': '(bestvideo[ext=none]/bestvideo[ext=webm])+bestaudio'})
 266         yie = YoutubeIE(ydl)
 267         yie._sort_formats(info_dict['formats'])
 268         ydl.process_ie_result(info_dict)
 269         downloaded_ids = [info['format_id'] for info in ydl.downloaded_info_dicts]
 270         self.assertEqual(downloaded_ids, ['248+141'])
 271
 272         for f1, f2 in zip(formats_order, formats_order[1:]):
 273             info_dict = _make_result([f1, f2], extractor='youtube')
 274             ydl = YDL({'format': 'best/bestvideo'})
 275             yie = YoutubeIE(ydl)
 276             yie._sort_formats(info_dict['formats'])
 277             ydl.process_ie_result(info_dict)
 278             downloaded = ydl.downloaded_info_dicts[0]
 279             self.assertEqual(downloaded['format_id'], f1['format_id'])
 280
 281             info_dict = _make_result([f2, f1], extractor='youtube')
 282             ydl = YDL({'format': 'best/bestvideo'})
 283             yie = YoutubeIE(ydl)
 284             yie._sort_formats(info_dict['formats'])
 285             ydl.process_ie_result(info_dict)
 286             downloaded = ydl.downloaded_info_dicts[0]
 287             self.assertEqual(downloaded['format_id'], f1['format_id'])
 288
 289     def test_format_filtering(self):
 290         formats = [
 291             {'format_id': 'A', 'filesize': 500, 'width': 1000},
 292             {'format_id': 'B', 'filesize': 1000, 'width': 500},
 293             {'format_id': 'C', 'filesize': 1000, 'width': 400},
 294             {'format_id': 'D', 'filesize': 2000, 'width': 600},
 295             {'format_id': 'E', 'filesize': 3000},
 296             {'format_id': 'F'},
 297             {'format_id': 'G', 'filesize': 1000000},
 298         ]
 299         for f in formats:
 300             f['url'] = 'http://_/'
 301             f['ext'] = 'unknown'
 302         info_dict = _make_result(formats)
 303
 304         ydl = YDL({'format': 'best[filesize<3000]'})
 305         ydl.process_ie_result(info_dict)
 306         downloaded = ydl.downloaded_info_dicts[0]
 307         self.assertEqual(downloaded['format_id'], 'D')
 308
 309         ydl = YDL({'format': 'best[filesize<=3000]'})
 310         ydl.process_ie_result(info_dict)
 311         downloaded = ydl.downloaded_info_dicts[0]
 312         self.assertEqual(downloaded['format_id'], 'E')
 313
 314         ydl = YDL({'format': 'best[filesize <= ? 3000]'})
 315         ydl.process_ie_result(info_dict)
 316         downloaded = ydl.downloaded_info_dicts[0]
 317         self.assertEqual(downloaded['format_id'], 'F')
 318
 319         ydl = YDL({'format': 'best [filesize = 1000] [width>450]'})
 320         ydl.process_ie_result(info_dict)
 321         downloaded = ydl.downloaded_info_dicts[0]
 322         self.assertEqual(downloaded['format_id'], 'B')
 323
 324         ydl = YDL({'format': 'best [filesize = 1000] [width!=450]'})
 325         ydl.process_ie_result(info_dict)
 326         downloaded = ydl.downloaded_info_dicts[0]
 327         self.assertEqual(downloaded['format_id'], 'C')
 328
 329         ydl = YDL({'format': '[filesize>?1]'})
 330         ydl.process_ie_result(info_dict)
 331         downloaded = ydl.downloaded_info_dicts[0]
 332         self.assertEqual(downloaded['format_id'], 'G')
 333
 334         ydl = YDL({'format': '[filesize<1M]'})
 335         ydl.process_ie_result(info_dict)
 336         downloaded = ydl.downloaded_info_dicts[0]
 337         self.assertEqual(downloaded['format_id'], 'E')
 338
 339         ydl = YDL({'format': '[filesize<1MiB]'})
 340         ydl.process_ie_result(info_dict)
 341         downloaded = ydl.downloaded_info_dicts[0]
 342         self.assertEqual(downloaded['format_id'], 'G')
 343
 344         ydl = YDL({'format': 'all[width>=400][width<=600]'})
 345         ydl.process_ie_result(info_dict)
 346         downloaded_ids = [info['format_id'] for info in ydl.downloaded_info_dicts]
 347         self.assertEqual(downloaded_ids, ['B', 'C', 'D'])
 348
 349
 350 class TestYoutubeDL(unittest.TestCase):
 351     def test_subtitles(self):
 352         def s_formats(lang, autocaption=False):
 353             return [{
 354                 'ext': ext,
 355                 'url': 'http://localhost/video.%s.%s' % (lang, ext),
 356                 '_auto': autocaption,
 357             } for ext in ['vtt', 'srt', 'ass']]
 358         subtitles = dict((l, s_formats(l)) for l in ['en', 'fr', 'es'])
 359         auto_captions = dict((l, s_formats(l, True)) for l in ['it', 'pt', 'es'])
 360         info_dict = {
 361             'id': 'test',
 362             'title': 'Test',
 363             'url': 'http://localhost/video.mp4',
 364             'subtitles': subtitles,
 365             'automatic_captions': auto_captions,
 366             'extractor': 'TEST',
 367         }
 368
 369         def get_info(params={}):
 370             params.setdefault('simulate', True)
 371             ydl = YDL(params)
 372             ydl.report_warning = lambda *args, **kargs: None
 373             return ydl.process_video_result(info_dict, download=False)
 374
 375         result = get_info()
 376         self.assertFalse(result.get('requested_subtitles'))
 377         self.assertEqual(result['subtitles'], subtitles)
 378         self.assertEqual(result['automatic_captions'], auto_captions)
 379
 380         result = get_info({'writesubtitles': True})
 381         subs = result['requested_subtitles']
 382         self.assertTrue(subs)
 383         self.assertEqual(set(subs.keys()), set(['en']))
 384         self.assertTrue(subs['en'].get('data') is None)
 385         self.assertEqual(subs['en']['ext'], 'ass')
 386
 387         result = get_info({'writesubtitles': True, 'subtitlesformat': 'foo/srt'})
 388         subs = result['requested_subtitles']
 389         self.assertEqual(subs['en']['ext'], 'srt')
 390
 391         result = get_info({'writesubtitles': True, 'subtitleslangs': ['es', 'fr', 'it']})
 392         subs = result['requested_subtitles']
 393         self.assertTrue(subs)
 394         self.assertEqual(set(subs.keys()), set(['es', 'fr']))
 395
 396         result = get_info({'writesubtitles': True, 'writeautomaticsub': True, 'subtitleslangs': ['es', 'pt']})
 397         subs = result['requested_subtitles']
 398         self.assertTrue(subs)
 399         self.assertEqual(set(subs.keys()), set(['es', 'pt']))
 400         self.assertFalse(subs['es']['_auto'])
 401         self.assertTrue(subs['pt']['_auto'])
 402
 403         result = get_info({'writeautomaticsub': True, 'subtitleslangs': ['es', 'pt']})
 404         subs = result['requested_subtitles']
 405         self.assertTrue(subs)
 406         self.assertEqual(set(subs.keys()), set(['es', 'pt']))
 407         self.assertTrue(subs['es']['_auto'])
 408         self.assertTrue(subs['pt']['_auto'])
 409
 410     def test_add_extra_info(self):
 411         test_dict = {
 412             'extractor': 'Foo',
 413         }
 414         extra_info = {
 415             'extractor': 'Bar',
 416             'playlist': 'funny videos',
 417         }
 418         YDL.add_extra_info(test_dict, extra_info)
 419         self.assertEqual(test_dict['extractor'], 'Foo')
 420         self.assertEqual(test_dict['playlist'], 'funny videos')
 421
 422     def test_prepare_filename(self):
 423         info = {
 424             'id': '1234',
 425             'ext': 'mp4',
 426             'width': None,
 427         }
 428
 429         def fname(templ):
 430             ydl = YoutubeDL({'outtmpl': templ})
 431             return ydl.prepare_filename(info)
 432         self.assertEqual(fname('%(id)s.%(ext)s'), '1234.mp4')
 433         self.assertEqual(fname('%(id)s-%(width)s.%(ext)s'), '1234-NA.mp4')
 434         # Replace missing fields with 'NA'
 435         self.assertEqual(fname('%(uploader_date)s-%(id)s.%(ext)s'), 'NA-1234.mp4')
 436
 437     def test_format_note(self):
 438         ydl = YoutubeDL()
 439         self.assertEqual(ydl._format_note({}), '')
 440         assertRegexpMatches(self, ydl._format_note({
 441             'vbr': 10,
 442         }), '^\s*10k$')
 443
 444     def test_postprocessors(self):
 445         filename = 'post-processor-testfile.mp4'
 446         audiofile = filename + '.mp3'
 447
 448         class SimplePP(PostProcessor):
 449             def run(self, info):
 450                 with open(audiofile, 'wt') as f:
 451                     f.write('EXAMPLE')
 452                 return [info['filepath']], info
 453
 454         def run_pp(params, PP):
 455             with open(filename, 'wt') as f:
 456                 f.write('EXAMPLE')
 457             ydl = YoutubeDL(params)
 458             ydl.add_post_processor(PP())
 459             ydl.post_process(filename, {'filepath': filename})
 460
 461         run_pp({'keepvideo': True}, SimplePP)
 462         self.assertTrue(os.path.exists(filename), '%s doesn\'t exist' % filename)
 463         self.assertTrue(os.path.exists(audiofile), '%s doesn\'t exist' % audiofile)
 464         os.unlink(filename)
 465         os.unlink(audiofile)
 466
 467         run_pp({'keepvideo': False}, SimplePP)
 468         self.assertFalse(os.path.exists(filename), '%s exists' % filename)
 469         self.assertTrue(os.path.exists(audiofile), '%s doesn\'t exist' % audiofile)
 470         os.unlink(audiofile)
 471
 472         class ModifierPP(PostProcessor):
 473             def run(self, info):
 474                 with open(info['filepath'], 'wt') as f:
 475                     f.write('MODIFIED')
 476                 return [], info
 477
 478         run_pp({'keepvideo': False}, ModifierPP)
 479         self.assertTrue(os.path.exists(filename), '%s doesn\'t exist' % filename)
 480         os.unlink(filename)
 481
 482     def test_match_filter(self):
 483         class FilterYDL(YDL):
 484             def __init__(self, *args, **kwargs):
 485                 super(FilterYDL, self).__init__(*args, **kwargs)
 486                 self.params['simulate'] = True
 487
 488             def process_info(self, info_dict):
 489                 super(YDL, self).process_info(info_dict)
 490
 491             def _match_entry(self, info_dict, incomplete):
 492                 res = super(FilterYDL, self)._match_entry(info_dict, incomplete)
 493                 if res is None:
 494                     self.downloaded_info_dicts.append(info_dict)
 495                 return res
 496
 497         first = {
 498             'id': '1',
 499             'url': TEST_URL,
 500             'title': 'one',
 501             'extractor': 'TEST',
 502             'duration': 30,
 503             'filesize': 10 * 1024,
 504         }
 505         second = {
 506             'id': '2',
 507             'url': TEST_URL,
 508             'title': 'two',
 509             'extractor': 'TEST',
 510             'duration': 10,
 511             'description': 'foo',
 512             'filesize': 5 * 1024,
 513         }
 514         videos = [first, second]
 515
 516         def get_videos(filter_=None):
 517             ydl = FilterYDL({'match_filter': filter_})
 518             for v in videos:
 519                 ydl.process_ie_result(v, download=True)
 520             return [v['id'] for v in ydl.downloaded_info_dicts]
 521
 522         res = get_videos()
 523         self.assertEqual(res, ['1', '2'])
 524
 525         def f(v):
 526             if v['id'] == '1':
 527                 return None
 528             else:
 529                 return 'Video id is not 1'
 530         res = get_videos(f)
 531         self.assertEqual(res, ['1'])
 532
 533         f = match_filter_func('duration < 30')
 534         res = get_videos(f)
 535         self.assertEqual(res, ['2'])
 536
 537         f = match_filter_func('description = foo')
 538         res = get_videos(f)
 539         self.assertEqual(res, ['2'])
 540
 541         f = match_filter_func('description =? foo')
 542         res = get_videos(f)
 543         self.assertEqual(res, ['1', '2'])
 544
 545         f = match_filter_func('filesize > 5KiB')
 546         res = get_videos(f)
 547         self.assertEqual(res, ['1'])
 548
 549     def test_playlist_items_selection(self):
 550         entries = [{
 551             'id': compat_str(i),
 552             'title': compat_str(i),
 553             'url': TEST_URL,
 554         } for i in range(1, 5)]
 555         playlist = {
 556             '_type': 'playlist',
 557             'id': 'test',
 558             'entries': entries,
 559             'extractor': 'test:playlist',
 560             'extractor_key': 'test:playlist',
 561             'webpage_url': 'http://example.com',
 562         }
 563
 564         def get_ids(params):
 565             ydl = YDL(params)
 566             # make a copy because the dictionary can be modified
 567             ydl.process_ie_result(playlist.copy())
 568             return [int(v['id']) for v in ydl.downloaded_info_dicts]
 569
 570         result = get_ids({})
 571         self.assertEqual(result, [1, 2, 3, 4])
 572
 573         result = get_ids({'playlistend': 10})
 574         self.assertEqual(result, [1, 2, 3, 4])
 575
 576         result = get_ids({'playlistend': 2})
 577         self.assertEqual(result, [1, 2])
 578
 579         result = get_ids({'playliststart': 10})
 580         self.assertEqual(result, [])
 581
 582         result = get_ids({'playliststart': 2})
 583         self.assertEqual(result, [2, 3, 4])
 584
 585         result = get_ids({'playlist_items': '2-4'})
 586         self.assertEqual(result, [2, 3, 4])
 587
 588         result = get_ids({'playlist_items': '2,4'})
 589         self.assertEqual(result, [2, 4])
 590
 591         result = get_ids({'playlist_items': '10'})
 592         self.assertEqual(result, [])
 593
 594
 595 if __name__ == '__main__':
 596     unittest.main()