_ 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 ExtractorError, 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': 'example-with-dashes', 'ext': 'webm', 'preference': 1, 'url': TEST_URL},
 109             {'format_id': '45', 'ext': 'webm', 'preference': 2, 'url': TEST_URL},
 110             {'format_id': '47', 'ext': 'webm', 'preference': 3, 'url': TEST_URL},
 111             {'format_id': '2', 'ext': 'flv', 'preference': 4, 'url': TEST_URL},
 112         ]
 113         info_dict = _make_result(formats)
 114
 115         ydl = YDL({'format': '20/47'})
 116         ydl.process_ie_result(info_dict.copy())
 117         downloaded = ydl.downloaded_info_dicts[0]
 118         self.assertEqual(downloaded['format_id'], '47')
 119
 120         ydl = YDL({'format': '20/71/worst'})
 121         ydl.process_ie_result(info_dict.copy())
 122         downloaded = ydl.downloaded_info_dicts[0]
 123         self.assertEqual(downloaded['format_id'], '35')
 124
 125         ydl = YDL()
 126         ydl.process_ie_result(info_dict.copy())
 127         downloaded = ydl.downloaded_info_dicts[0]
 128         self.assertEqual(downloaded['format_id'], '2')
 129
 130         ydl = YDL({'format': 'webm/mp4'})
 131         ydl.process_ie_result(info_dict.copy())
 132         downloaded = ydl.downloaded_info_dicts[0]
 133         self.assertEqual(downloaded['format_id'], '47')
 134
 135         ydl = YDL({'format': '3gp/40/mp4'})
 136         ydl.process_ie_result(info_dict.copy())
 137         downloaded = ydl.downloaded_info_dicts[0]
 138         self.assertEqual(downloaded['format_id'], '35')
 139
 140         ydl = YDL({'format': 'example-with-dashes'})
 141         ydl.process_ie_result(info_dict.copy())
 142         downloaded = ydl.downloaded_info_dicts[0]
 143         self.assertEqual(downloaded['format_id'], 'example-with-dashes')
 144
 145     def test_format_selection_audio(self):
 146         formats = [
 147             {'format_id': 'audio-low', 'ext': 'webm', 'preference': 1, 'vcodec': 'none', 'url': TEST_URL},
 148             {'format_id': 'audio-mid', 'ext': 'webm', 'preference': 2, 'vcodec': 'none', 'url': TEST_URL},
 149             {'format_id': 'audio-high', 'ext': 'flv', 'preference': 3, 'vcodec': 'none', 'url': TEST_URL},
 150             {'format_id': 'vid', 'ext': 'mp4', 'preference': 4, 'url': TEST_URL},
 151         ]
 152         info_dict = _make_result(formats)
 153
 154         ydl = YDL({'format': 'bestaudio'})
 155         ydl.process_ie_result(info_dict.copy())
 156         downloaded = ydl.downloaded_info_dicts[0]
 157         self.assertEqual(downloaded['format_id'], 'audio-high')
 158
 159         ydl = YDL({'format': 'worstaudio'})
 160         ydl.process_ie_result(info_dict.copy())
 161         downloaded = ydl.downloaded_info_dicts[0]
 162         self.assertEqual(downloaded['format_id'], 'audio-low')
 163
 164         formats = [
 165             {'format_id': 'vid-low', 'ext': 'mp4', 'preference': 1, 'url': TEST_URL},
 166             {'format_id': 'vid-high', 'ext': 'mp4', 'preference': 2, 'url': TEST_URL},
 167         ]
 168         info_dict = _make_result(formats)
 169
 170         ydl = YDL({'format': 'bestaudio/worstaudio/best'})
 171         ydl.process_ie_result(info_dict.copy())
 172         downloaded = ydl.downloaded_info_dicts[0]
 173         self.assertEqual(downloaded['format_id'], 'vid-high')
 174
 175     def test_format_selection_audio_exts(self):
 176         formats = [
 177             {'format_id': 'mp3-64', 'ext': 'mp3', 'abr': 64, 'url': 'http://_', 'vcodec': 'none'},
 178             {'format_id': 'ogg-64', 'ext': 'ogg', 'abr': 64, 'url': 'http://_', 'vcodec': 'none'},
 179             {'format_id': 'aac-64', 'ext': 'aac', 'abr': 64, 'url': 'http://_', 'vcodec': 'none'},
 180             {'format_id': 'mp3-32', 'ext': 'mp3', 'abr': 32, 'url': 'http://_', 'vcodec': 'none'},
 181             {'format_id': 'aac-32', 'ext': 'aac', 'abr': 32, 'url': 'http://_', 'vcodec': 'none'},
 182         ]
 183
 184         info_dict = _make_result(formats)
 185         ydl = YDL({'format': 'best'})
 186         ie = YoutubeIE(ydl)
 187         ie._sort_formats(info_dict['formats'])
 188         ydl.process_ie_result(copy.deepcopy(info_dict))
 189         downloaded = ydl.downloaded_info_dicts[0]
 190         self.assertEqual(downloaded['format_id'], 'aac-64')
 191
 192         ydl = YDL({'format': 'mp3'})
 193         ie = YoutubeIE(ydl)
 194         ie._sort_formats(info_dict['formats'])
 195         ydl.process_ie_result(copy.deepcopy(info_dict))
 196         downloaded = ydl.downloaded_info_dicts[0]
 197         self.assertEqual(downloaded['format_id'], 'mp3-64')
 198
 199         ydl = YDL({'prefer_free_formats': True})
 200         ie = YoutubeIE(ydl)
 201         ie._sort_formats(info_dict['formats'])
 202         ydl.process_ie_result(copy.deepcopy(info_dict))
 203         downloaded = ydl.downloaded_info_dicts[0]
 204         self.assertEqual(downloaded['format_id'], 'ogg-64')
 205
 206     def test_format_selection_video(self):
 207         formats = [
 208             {'format_id': 'dash-video-low', 'ext': 'mp4', 'preference': 1, 'acodec': 'none', 'url': TEST_URL},
 209             {'format_id': 'dash-video-high', 'ext': 'mp4', 'preference': 2, 'acodec': 'none', 'url': TEST_URL},
 210             {'format_id': 'vid', 'ext': 'mp4', 'preference': 3, 'url': TEST_URL},
 211         ]
 212         info_dict = _make_result(formats)
 213
 214         ydl = YDL({'format': 'bestvideo'})
 215         ydl.process_ie_result(info_dict.copy())
 216         downloaded = ydl.downloaded_info_dicts[0]
 217         self.assertEqual(downloaded['format_id'], 'dash-video-high')
 218
 219         ydl = YDL({'format': 'worstvideo'})
 220         ydl.process_ie_result(info_dict.copy())
 221         downloaded = ydl.downloaded_info_dicts[0]
 222         self.assertEqual(downloaded['format_id'], 'dash-video-low')
 223
 224     def test_youtube_format_selection(self):
 225         order = [
 226             '38', '37', '46', '22', '45', '35', '44', '18', '34', '43', '6', '5', '36', '17', '13',
 227             # Apple HTTP Live Streaming
 228             '96', '95', '94', '93', '92', '132', '151',
 229             # 3D
 230             '85', '84', '102', '83', '101', '82', '100',
 231             # Dash video
 232             '137', '248', '136', '247', '135', '246',
 233             '245', '244', '134', '243', '133', '242', '160',
 234             # Dash audio
 235             '141', '172', '140', '171', '139',
 236         ]
 237
 238         def format_info(f_id):
 239             info = YoutubeIE._formats[f_id].copy()
 240             info['format_id'] = f_id
 241             info['url'] = 'url:' + f_id
 242             return info
 243         formats_order = [format_info(f_id) for f_id in order]
 244
 245         info_dict = _make_result(list(formats_order), extractor='youtube')
 246         ydl = YDL({'format': 'bestvideo+bestaudio'})
 247         yie = YoutubeIE(ydl)
 248         yie._sort_formats(info_dict['formats'])
 249         ydl.process_ie_result(info_dict)
 250         downloaded = ydl.downloaded_info_dicts[0]
 251         self.assertEqual(downloaded['format_id'], '137+141')
 252         self.assertEqual(downloaded['ext'], 'mp4')
 253
 254         info_dict = _make_result(list(formats_order), extractor='youtube')
 255         ydl = YDL({'format': 'bestvideo[height>=999999]+bestaudio/best'})
 256         yie = YoutubeIE(ydl)
 257         yie._sort_formats(info_dict['formats'])
 258         ydl.process_ie_result(info_dict)
 259         downloaded = ydl.downloaded_info_dicts[0]
 260         self.assertEqual(downloaded['format_id'], '38')
 261
 262         info_dict = _make_result(list(formats_order), extractor='youtube')
 263         ydl = YDL({'format': 'bestvideo/best,bestaudio'})
 264         yie = YoutubeIE(ydl)
 265         yie._sort_formats(info_dict['formats'])
 266         ydl.process_ie_result(info_dict)
 267         downloaded_ids = [info['format_id'] for info in ydl.downloaded_info_dicts]
 268         self.assertEqual(downloaded_ids, ['137', '141'])
 269
 270         info_dict = _make_result(list(formats_order), extractor='youtube')
 271         ydl = YDL({'format': '(bestvideo[ext=mp4],bestvideo[ext=webm])+bestaudio'})
 272         yie = YoutubeIE(ydl)
 273         yie._sort_formats(info_dict['formats'])
 274         ydl.process_ie_result(info_dict)
 275         downloaded_ids = [info['format_id'] for info in ydl.downloaded_info_dicts]
 276         self.assertEqual(downloaded_ids, ['137+141', '248+141'])
 277
 278         info_dict = _make_result(list(formats_order), extractor='youtube')
 279         ydl = YDL({'format': '(bestvideo[ext=mp4],bestvideo[ext=webm])[height<=720]+bestaudio'})
 280         yie = YoutubeIE(ydl)
 281         yie._sort_formats(info_dict['formats'])
 282         ydl.process_ie_result(info_dict)
 283         downloaded_ids = [info['format_id'] for info in ydl.downloaded_info_dicts]
 284         self.assertEqual(downloaded_ids, ['136+141', '247+141'])
 285
 286         info_dict = _make_result(list(formats_order), extractor='youtube')
 287         ydl = YDL({'format': '(bestvideo[ext=none]/bestvideo[ext=webm])+bestaudio'})
 288         yie = YoutubeIE(ydl)
 289         yie._sort_formats(info_dict['formats'])
 290         ydl.process_ie_result(info_dict)
 291         downloaded_ids = [info['format_id'] for info in ydl.downloaded_info_dicts]
 292         self.assertEqual(downloaded_ids, ['248+141'])
 293
 294         for f1, f2 in zip(formats_order, formats_order[1:]):
 295             info_dict = _make_result([f1, f2], extractor='youtube')
 296             ydl = YDL({'format': 'best/bestvideo'})
 297             yie = YoutubeIE(ydl)
 298             yie._sort_formats(info_dict['formats'])
 299             ydl.process_ie_result(info_dict)
 300             downloaded = ydl.downloaded_info_dicts[0]
 301             self.assertEqual(downloaded['format_id'], f1['format_id'])
 302
 303             info_dict = _make_result([f2, f1], extractor='youtube')
 304             ydl = YDL({'format': 'best/bestvideo'})
 305             yie = YoutubeIE(ydl)
 306             yie._sort_formats(info_dict['formats'])
 307             ydl.process_ie_result(info_dict)
 308             downloaded = ydl.downloaded_info_dicts[0]
 309             self.assertEqual(downloaded['format_id'], f1['format_id'])
 310
 311     def test_invalid_format_specs(self):
 312         def assert_syntax_error(format_spec):
 313             ydl = YDL({'format': format_spec})
 314             info_dict = _make_result([{'format_id': 'foo', 'url': TEST_URL}])
 315             self.assertRaises(SyntaxError, ydl.process_ie_result, info_dict)
 316
 317         assert_syntax_error('bestvideo,,best')
 318         assert_syntax_error('+bestaudio')
 319         assert_syntax_error('bestvideo+')
 320         assert_syntax_error('/')
 321
 322     def test_format_filtering(self):
 323         formats = [
 324             {'format_id': 'A', 'filesize': 500, 'width': 1000},
 325             {'format_id': 'B', 'filesize': 1000, 'width': 500},
 326             {'format_id': 'C', 'filesize': 1000, 'width': 400},
 327             {'format_id': 'D', 'filesize': 2000, 'width': 600},
 328             {'format_id': 'E', 'filesize': 3000},
 329             {'format_id': 'F'},
 330             {'format_id': 'G', 'filesize': 1000000},
 331         ]
 332         for f in formats:
 333             f['url'] = 'http://_/'
 334             f['ext'] = 'unknown'
 335         info_dict = _make_result(formats)
 336
 337         ydl = YDL({'format': 'best[filesize<3000]'})
 338         ydl.process_ie_result(info_dict)
 339         downloaded = ydl.downloaded_info_dicts[0]
 340         self.assertEqual(downloaded['format_id'], 'D')
 341
 342         ydl = YDL({'format': 'best[filesize<=3000]'})
 343         ydl.process_ie_result(info_dict)
 344         downloaded = ydl.downloaded_info_dicts[0]
 345         self.assertEqual(downloaded['format_id'], 'E')
 346
 347         ydl = YDL({'format': 'best[filesize <= ? 3000]'})
 348         ydl.process_ie_result(info_dict)
 349         downloaded = ydl.downloaded_info_dicts[0]
 350         self.assertEqual(downloaded['format_id'], 'F')
 351
 352         ydl = YDL({'format': 'best [filesize = 1000] [width>450]'})
 353         ydl.process_ie_result(info_dict)
 354         downloaded = ydl.downloaded_info_dicts[0]
 355         self.assertEqual(downloaded['format_id'], 'B')
 356
 357         ydl = YDL({'format': 'best [filesize = 1000] [width!=450]'})
 358         ydl.process_ie_result(info_dict)
 359         downloaded = ydl.downloaded_info_dicts[0]
 360         self.assertEqual(downloaded['format_id'], 'C')
 361
 362         ydl = YDL({'format': '[filesize>?1]'})
 363         ydl.process_ie_result(info_dict)
 364         downloaded = ydl.downloaded_info_dicts[0]
 365         self.assertEqual(downloaded['format_id'], 'G')
 366
 367         ydl = YDL({'format': '[filesize<1M]'})
 368         ydl.process_ie_result(info_dict)
 369         downloaded = ydl.downloaded_info_dicts[0]
 370         self.assertEqual(downloaded['format_id'], 'E')
 371
 372         ydl = YDL({'format': '[filesize<1MiB]'})
 373         ydl.process_ie_result(info_dict)
 374         downloaded = ydl.downloaded_info_dicts[0]
 375         self.assertEqual(downloaded['format_id'], 'G')
 376
 377         ydl = YDL({'format': 'all[width>=400][width<=600]'})
 378         ydl.process_ie_result(info_dict)
 379         downloaded_ids = [info['format_id'] for info in ydl.downloaded_info_dicts]
 380         self.assertEqual(downloaded_ids, ['B', 'C', 'D'])
 381
 382         ydl = YDL({'format': 'best[height<40]'})
 383         try:
 384             ydl.process_ie_result(info_dict)
 385         except ExtractorError:
 386             pass
 387         self.assertEqual(ydl.downloaded_info_dicts, [])
 388
 389
 390 class TestYoutubeDL(unittest.TestCase):
 391     def test_subtitles(self):
 392         def s_formats(lang, autocaption=False):
 393             return [{
 394                 'ext': ext,
 395                 'url': 'http://localhost/video.%s.%s' % (lang, ext),
 396                 '_auto': autocaption,
 397             } for ext in ['vtt', 'srt', 'ass']]
 398         subtitles = dict((l, s_formats(l)) for l in ['en', 'fr', 'es'])
 399         auto_captions = dict((l, s_formats(l, True)) for l in ['it', 'pt', 'es'])
 400         info_dict = {
 401             'id': 'test',
 402             'title': 'Test',
 403             'url': 'http://localhost/video.mp4',
 404             'subtitles': subtitles,
 405             'automatic_captions': auto_captions,
 406             'extractor': 'TEST',
 407         }
 408
 409         def get_info(params={}):
 410             params.setdefault('simulate', True)
 411             ydl = YDL(params)
 412             ydl.report_warning = lambda *args, **kargs: None
 413             return ydl.process_video_result(info_dict, download=False)
 414
 415         result = get_info()
 416         self.assertFalse(result.get('requested_subtitles'))
 417         self.assertEqual(result['subtitles'], subtitles)
 418         self.assertEqual(result['automatic_captions'], auto_captions)
 419
 420         result = get_info({'writesubtitles': True})
 421         subs = result['requested_subtitles']
 422         self.assertTrue(subs)
 423         self.assertEqual(set(subs.keys()), set(['en']))
 424         self.assertTrue(subs['en'].get('data') is None)
 425         self.assertEqual(subs['en']['ext'], 'ass')
 426
 427         result = get_info({'writesubtitles': True, 'subtitlesformat': 'foo/srt'})
 428         subs = result['requested_subtitles']
 429         self.assertEqual(subs['en']['ext'], 'srt')
 430
 431         result = get_info({'writesubtitles': True, 'subtitleslangs': ['es', 'fr', 'it']})
 432         subs = result['requested_subtitles']
 433         self.assertTrue(subs)
 434         self.assertEqual(set(subs.keys()), set(['es', 'fr']))
 435
 436         result = get_info({'writesubtitles': True, 'writeautomaticsub': True, 'subtitleslangs': ['es', 'pt']})
 437         subs = result['requested_subtitles']
 438         self.assertTrue(subs)
 439         self.assertEqual(set(subs.keys()), set(['es', 'pt']))
 440         self.assertFalse(subs['es']['_auto'])
 441         self.assertTrue(subs['pt']['_auto'])
 442
 443         result = get_info({'writeautomaticsub': True, 'subtitleslangs': ['es', 'pt']})
 444         subs = result['requested_subtitles']
 445         self.assertTrue(subs)
 446         self.assertEqual(set(subs.keys()), set(['es', 'pt']))
 447         self.assertTrue(subs['es']['_auto'])
 448         self.assertTrue(subs['pt']['_auto'])
 449
 450     def test_add_extra_info(self):
 451         test_dict = {
 452             'extractor': 'Foo',
 453         }
 454         extra_info = {
 455             'extractor': 'Bar',
 456             'playlist': 'funny videos',
 457         }
 458         YDL.add_extra_info(test_dict, extra_info)
 459         self.assertEqual(test_dict['extractor'], 'Foo')
 460         self.assertEqual(test_dict['playlist'], 'funny videos')
 461
 462     def test_prepare_filename(self):
 463         info = {
 464             'id': '1234',
 465             'ext': 'mp4',
 466             'width': None,
 467         }
 468
 469         def fname(templ):
 470             ydl = YoutubeDL({'outtmpl': templ})
 471             return ydl.prepare_filename(info)
 472         self.assertEqual(fname('%(id)s.%(ext)s'), '1234.mp4')
 473         self.assertEqual(fname('%(id)s-%(width)s.%(ext)s'), '1234-NA.mp4')
 474         # Replace missing fields with 'NA'
 475         self.assertEqual(fname('%(uploader_date)s-%(id)s.%(ext)s'), 'NA-1234.mp4')
 476
 477     def test_format_note(self):
 478         ydl = YoutubeDL()
 479         self.assertEqual(ydl._format_note({}), '')
 480         assertRegexpMatches(self, ydl._format_note({
 481             'vbr': 10,
 482         }), '^\s*10k$')
 483
 484     def test_postprocessors(self):
 485         filename = 'post-processor-testfile.mp4'
 486         audiofile = filename + '.mp3'
 487
 488         class SimplePP(PostProcessor):
 489             def run(self, info):
 490                 with open(audiofile, 'wt') as f:
 491                     f.write('EXAMPLE')
 492                 return [info['filepath']], info
 493
 494         def run_pp(params, PP):
 495             with open(filename, 'wt') as f:
 496                 f.write('EXAMPLE')
 497             ydl = YoutubeDL(params)
 498             ydl.add_post_processor(PP())
 499             ydl.post_process(filename, {'filepath': filename})
 500
 501         run_pp({'keepvideo': True}, SimplePP)
 502         self.assertTrue(os.path.exists(filename), '%s doesn\'t exist' % filename)
 503         self.assertTrue(os.path.exists(audiofile), '%s doesn\'t exist' % audiofile)
 504         os.unlink(filename)
 505         os.unlink(audiofile)
 506
 507         run_pp({'keepvideo': False}, SimplePP)
 508         self.assertFalse(os.path.exists(filename), '%s exists' % filename)
 509         self.assertTrue(os.path.exists(audiofile), '%s doesn\'t exist' % audiofile)
 510         os.unlink(audiofile)
 511
 512         class ModifierPP(PostProcessor):
 513             def run(self, info):
 514                 with open(info['filepath'], 'wt') as f:
 515                     f.write('MODIFIED')
 516                 return [], info
 517
 518         run_pp({'keepvideo': False}, ModifierPP)
 519         self.assertTrue(os.path.exists(filename), '%s doesn\'t exist' % filename)
 520         os.unlink(filename)
 521
 522     def test_match_filter(self):
 523         class FilterYDL(YDL):
 524             def __init__(self, *args, **kwargs):
 525                 super(FilterYDL, self).__init__(*args, **kwargs)
 526                 self.params['simulate'] = True
 527
 528             def process_info(self, info_dict):
 529                 super(YDL, self).process_info(info_dict)
 530
 531             def _match_entry(self, info_dict, incomplete):
 532                 res = super(FilterYDL, self)._match_entry(info_dict, incomplete)
 533                 if res is None:
 534                     self.downloaded_info_dicts.append(info_dict)
 535                 return res
 536
 537         first = {
 538             'id': '1',
 539             'url': TEST_URL,
 540             'title': 'one',
 541             'extractor': 'TEST',
 542             'duration': 30,
 543             'filesize': 10 * 1024,
 544         }
 545         second = {
 546             'id': '2',
 547             'url': TEST_URL,
 548             'title': 'two',
 549             'extractor': 'TEST',
 550             'duration': 10,
 551             'description': 'foo',
 552             'filesize': 5 * 1024,
 553         }
 554         videos = [first, second]
 555
 556         def get_videos(filter_=None):
 557             ydl = FilterYDL({'match_filter': filter_})
 558             for v in videos:
 559                 ydl.process_ie_result(v, download=True)
 560             return [v['id'] for v in ydl.downloaded_info_dicts]
 561
 562         res = get_videos()
 563         self.assertEqual(res, ['1', '2'])
 564
 565         def f(v):
 566             if v['id'] == '1':
 567                 return None
 568             else:
 569                 return 'Video id is not 1'
 570         res = get_videos(f)
 571         self.assertEqual(res, ['1'])
 572
 573         f = match_filter_func('duration < 30')
 574         res = get_videos(f)
 575         self.assertEqual(res, ['2'])
 576
 577         f = match_filter_func('description = foo')
 578         res = get_videos(f)
 579         self.assertEqual(res, ['2'])
 580
 581         f = match_filter_func('description =? foo')
 582         res = get_videos(f)
 583         self.assertEqual(res, ['1', '2'])
 584
 585         f = match_filter_func('filesize > 5KiB')
 586         res = get_videos(f)
 587         self.assertEqual(res, ['1'])
 588
 589     def test_playlist_items_selection(self):
 590         entries = [{
 591             'id': compat_str(i),
 592             'title': compat_str(i),
 593             'url': TEST_URL,
 594         } for i in range(1, 5)]
 595         playlist = {
 596             '_type': 'playlist',
 597             'id': 'test',
 598             'entries': entries,
 599             'extractor': 'test:playlist',
 600             'extractor_key': 'test:playlist',
 601             'webpage_url': 'http://example.com',
 602         }
 603
 604         def get_ids(params):
 605             ydl = YDL(params)
 606             # make a copy because the dictionary can be modified
 607             ydl.process_ie_result(playlist.copy())
 608             return [int(v['id']) for v in ydl.downloaded_info_dicts]
 609
 610         result = get_ids({})
 611         self.assertEqual(result, [1, 2, 3, 4])
 612
 613         result = get_ids({'playlistend': 10})
 614         self.assertEqual(result, [1, 2, 3, 4])
 615
 616         result = get_ids({'playlistend': 2})
 617         self.assertEqual(result, [1, 2])
 618
 619         result = get_ids({'playliststart': 10})
 620         self.assertEqual(result, [])
 621
 622         result = get_ids({'playliststart': 2})
 623         self.assertEqual(result, [2, 3, 4])
 624
 625         result = get_ids({'playlist_items': '2-4'})
 626         self.assertEqual(result, [2, 3, 4])
 627
 628         result = get_ids({'playlist_items': '2,4'})
 629         self.assertEqual(result, [2, 4])
 630
 631         result = get_ids({'playlist_items': '10'})
 632         self.assertEqual(result, [])
 633
 634
 635 if __name__ == '__main__':
 636     unittest.main()