text: #!/usr/bin/env python
  # coding: utf-8
  
  from __future__ import unicode_literals
  
  # Allow direct execution
  import os
  import sys
  import unittest
  sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
  
  import copy
  
  from test.helper import FakeYDL, assertRegexpMatches
  from yt_dlp import YoutubeDL
  from yt_dlp.compat import compat_str, compat_urllib_error
  from yt_dlp.extractor import YoutubeIE
  from yt_dlp.extractor.common import InfoExtractor
  from yt_dlp.postprocessor.common import PostProcessor
  from yt_dlp.utils import ExtractorError, match_filter_func
  
  TEST_URL = 'http://localhost/sample.mp4'
  
  
  class YDL(FakeYDL):
      def __init__(self, *args, **kwargs):
          super(YDL, self).__init__(*args, **kwargs)
          self.downloaded_info_dicts = []
          self.msgs = []
  
      def process_info(self, info_dict):
          self.downloaded_info_dicts.append(info_dict)
  
      def to_screen(self, msg):
          self.msgs.append(msg)
  
  
  def _make_result(formats, **kwargs):
      res = {
          'formats': formats,
          'id': 'testid',
          'title': 'testttitle',
          'extractor': 'testex',
          'extractor_key': 'TestEx',
          'webpage_url': 'http://example.com/watch?v=shenanigans',
      }
      res.update(**kwargs)
      return res
  
  
  class TestFormatSelection(unittest.TestCase):
      def test_prefer_free_formats(self):
          # Same resolution => download webm
          ydl = YDL()
          ydl.params['prefer_free_formats'] = True
          formats = [
              {'ext': 'webm', 'height': 460, 'url': TEST_URL},
              {'ext': 'mp4', 'height': 460, 'url': TEST_URL},
          ]
          info_dict = _make_result(formats)
          yie = YoutubeIE(ydl)
          yie._sort_formats(info_dict['formats'])
          ydl.process_ie_result(info_dict)
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(downloaded['ext'], 'webm')
  
          # Different resolution => download best quality (mp4)
          ydl = YDL()
          ydl.params['prefer_free_formats'] = True
          formats = [
              {'ext': 'webm', 'height': 720, 'url': TEST_URL},
              {'ext': 'mp4', 'height': 1080, 'url': TEST_URL},
          ]
          info_dict['formats'] = formats
          yie = YoutubeIE(ydl)
          yie._sort_formats(info_dict['formats'])
          ydl.process_ie_result(info_dict)
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(downloaded['ext'], 'mp4')
  
          # No prefer_free_formats => prefer mp4 and webm
          ydl = YDL()
          ydl.params['prefer_free_formats'] = False
          formats = [
              {'ext': 'webm', 'height': 720, 'url': TEST_URL},
              {'ext': 'mp4', 'height': 720, 'url': TEST_URL},
              {'ext': 'flv', 'height': 720, 'url': TEST_URL},
          ]
          info_dict['formats'] = formats
          yie = YoutubeIE(ydl)
          yie._sort_formats(info_dict['formats'])
          ydl.process_ie_result(info_dict)
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(downloaded['ext'], 'mp4')
  
          ydl = YDL()
          ydl.params['prefer_free_formats'] = False
          formats = [
              {'ext': 'flv', 'height': 720, 'url': TEST_URL},
              {'ext': 'webm', 'height': 720, 'url': TEST_URL},
          ]
          info_dict['formats'] = formats
          yie = YoutubeIE(ydl)
          yie._sort_formats(info_dict['formats'])
          ydl.process_ie_result(info_dict)
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(downloaded['ext'], 'webm')
  
      def test_format_selection(self):
          formats = [
              {'format_id': '35', 'ext': 'mp4', 'preference': 1, 'url': TEST_URL},
              {'format_id': 'example-with-dashes', 'ext': 'webm', 'preference': 1, 'url': TEST_URL},
              {'format_id': '45', 'ext': 'webm', 'preference': 2, 'url': TEST_URL},
              {'format_id': '47', 'ext': 'webm', 'preference': 3, 'url': TEST_URL},
              {'format_id': '2', 'ext': 'flv', 'preference': 4, 'url': TEST_URL},
          ]
          info_dict = _make_result(formats)
  
          ydl = YDL({'format': '20/47'})
          ydl.process_ie_result(info_dict.copy())
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(downloaded['format_id'], '47')
  
          ydl = YDL({'format': '20/71/worst'})
          ydl.process_ie_result(info_dict.copy())
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(downloaded['format_id'], '35')
  
          ydl = YDL()
          ydl.process_ie_result(info_dict.copy())
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(downloaded['format_id'], '2')
  
          ydl = YDL({'format': 'webm/mp4'})
          ydl.process_ie_result(info_dict.copy())
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(downloaded['format_id'], '47')
  
          ydl = YDL({'format': '3gp/40/mp4'})
          ydl.process_ie_result(info_dict.copy())
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(downloaded['format_id'], '35')
  
          ydl = YDL({'format': 'example-with-dashes'})
          ydl.process_ie_result(info_dict.copy())
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(downloaded['format_id'], 'example-with-dashes')
  
      def test_format_selection_audio(self):
          formats = [
              {'format_id': 'audio-low', 'ext': 'webm', 'preference': 1, 'vcodec': 'none', 'url': TEST_URL},
              {'format_id': 'audio-mid', 'ext': 'webm', 'preference': 2, 'vcodec': 'none', 'url': TEST_URL},
              {'format_id': 'audio-high', 'ext': 'flv', 'preference': 3, 'vcodec': 'none', 'url': TEST_URL},
              {'format_id': 'vid', 'ext': 'mp4', 'preference': 4, 'url': TEST_URL},
          ]
          info_dict = _make_result(formats)
  
          ydl = YDL({'format': 'bestaudio'})
          ydl.process_ie_result(info_dict.copy())
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(downloaded['format_id'], 'audio-high')
  
          ydl = YDL({'format': 'worstaudio'})
          ydl.process_ie_result(info_dict.copy())
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(downloaded['format_id'], 'audio-low')
  
          formats = [
              {'format_id': 'vid-low', 'ext': 'mp4', 'preference': 1, 'url': TEST_URL},
              {'format_id': 'vid-high', 'ext': 'mp4', 'preference': 2, 'url': TEST_URL},
          ]
          info_dict = _make_result(formats)
  
          ydl = YDL({'format': 'bestaudio/worstaudio/best'})
          ydl.process_ie_result(info_dict.copy())
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(downloaded['format_id'], 'vid-high')
  
      def test_format_selection_audio_exts(self):
          formats = [
              {'format_id': 'mp3-64', 'ext': 'mp3', 'abr': 64, 'url': 'http://_', 'vcodec': 'none'},
              {'format_id': 'ogg-64', 'ext': 'ogg', 'abr': 64, 'url': 'http://_', 'vcodec': 'none'},
              {'format_id': 'aac-64', 'ext': 'aac', 'abr': 64, 'url': 'http://_', 'vcodec': 'none'},
              {'format_id': 'mp3-32', 'ext': 'mp3', 'abr': 32, 'url': 'http://_', 'vcodec': 'none'},
              {'format_id': 'aac-32', 'ext': 'aac', 'abr': 32, 'url': 'http://_', 'vcodec': 'none'},
          ]
  
          info_dict = _make_result(formats)
          ydl = YDL({'format': 'best'})
          ie = YoutubeIE(ydl)
          ie._sort_formats(info_dict['formats'])
          ydl.process_ie_result(copy.deepcopy(info_dict))
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(downloaded['format_id'], 'aac-64')
  
          ydl = YDL({'format': 'mp3'})
          ie = YoutubeIE(ydl)
          ie._sort_formats(info_dict['formats'])
          ydl.process_ie_result(copy.deepcopy(info_dict))
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(downloaded['format_id'], 'mp3-64')
  
          ydl = YDL({'prefer_free_formats': True})
          ie = YoutubeIE(ydl)
          ie._sort_formats(info_dict['formats'])
          ydl.process_ie_result(copy.deepcopy(info_dict))
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(downloaded['format_id'], 'ogg-64')
  
      def test_format_selection_video(self):
          formats = [
              {'format_id': 'dash-video-low', 'ext': 'mp4', 'preference': 1, 'acodec': 'none', 'url': TEST_URL},
              {'format_id': 'dash-video-high', 'ext': 'mp4', 'preference': 2, 'acodec': 'none', 'url': TEST_URL},
              {'format_id': 'vid', 'ext': 'mp4', 'preference': 3, 'url': TEST_URL},
          ]
          info_dict = _make_result(formats)
  
          ydl = YDL({'format': 'bestvideo'})
          ydl.process_ie_result(info_dict.copy())
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(downloaded['format_id'], 'dash-video-high')
  
          ydl = YDL({'format': 'worstvideo'})
          ydl.process_ie_result(info_dict.copy())
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(downloaded['format_id'], 'dash-video-low')
  
          ydl = YDL({'format': 'bestvideo[format_id^=dash][format_id$=low]'})
          ydl.process_ie_result(info_dict.copy())
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(downloaded['format_id'], 'dash-video-low')
  
          formats = [
              {'format_id': 'vid-vcodec-dot', 'ext': 'mp4', 'preference': 1, 'vcodec': 'avc1.123456', 'acodec': 'none', 'url': TEST_URL},
          ]
          info_dict = _make_result(formats)
  
          ydl = YDL({'format': 'bestvideo[vcodec=avc1.123456]'})
          ydl.process_ie_result(info_dict.copy())
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(downloaded['format_id'], 'vid-vcodec-dot')
  
      def test_format_selection_string_ops(self):
          formats = [
              {'format_id': 'abc-cba', 'ext': 'mp4', 'url': TEST_URL},
              {'format_id': 'zxc-cxz', 'ext': 'webm', 'url': TEST_URL},
          ]
          info_dict = _make_result(formats)
  
          # equals (=)
          ydl = YDL({'format': '[format_id=abc-cba]'})
          ydl.process_ie_result(info_dict.copy())
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(downloaded['format_id'], 'abc-cba')
  
          # does not equal (!=)
          ydl = YDL({'format': '[format_id!=abc-cba]'})
          ydl.process_ie_result(info_dict.copy())
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(downloaded['format_id'], 'zxc-cxz')
  
          ydl = YDL({'format': '[format_id!=abc-cba][format_id!=zxc-cxz]'})
          self.assertRaises(ExtractorError, ydl.process_ie_result, info_dict.copy())
  
          # starts with (^=)
          ydl = YDL({'format': '[format_id^=abc]'})
          ydl.process_ie_result(info_dict.copy())
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(downloaded['format_id'], 'abc-cba')
  
          # does not start with (!^=)
          ydl = YDL({'format': '[format_id!^=abc]'})
          ydl.process_ie_result(info_dict.copy())
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(downloaded['format_id'], 'zxc-cxz')
  
          ydl = YDL({'format': '[format_id!^=abc][format_id!^=zxc]'})
          self.assertRaises(ExtractorError, ydl.process_ie_result, info_dict.copy())
  
          # ends with ($=)
          ydl = YDL({'format': '[format_id$=cba]'})
          ydl.process_ie_result(info_dict.copy())
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(downloaded['format_id'], 'abc-cba')
  
          # does not end with (!$=)
          ydl = YDL({'format': '[format_id!$=cba]'})
          ydl.process_ie_result(info_dict.copy())
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(downloaded['format_id'], 'zxc-cxz')
  
          ydl = YDL({'format': '[format_id!$=cba][format_id!$=cxz]'})
          self.assertRaises(ExtractorError, ydl.process_ie_result, info_dict.copy())
  
          # contains (*=)
          ydl = YDL({'format': '[format_id*=bc-cb]'})
          ydl.process_ie_result(info_dict.copy())
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(downloaded['format_id'], 'abc-cba')
  
          # does not contain (!*=)
          ydl = YDL({'format': '[format_id!*=bc-cb]'})
          ydl.process_ie_result(info_dict.copy())
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(downloaded['format_id'], 'zxc-cxz')
  
          ydl = YDL({'format': '[format_id!*=abc][format_id!*=zxc]'})
          self.assertRaises(ExtractorError, ydl.process_ie_result, info_dict.copy())
  
          ydl = YDL({'format': '[format_id!*=-]'})
          self.assertRaises(ExtractorError, ydl.process_ie_result, info_dict.copy())
  
      def test_youtube_format_selection(self):
          # FIXME: Rewrite in accordance with the new format sorting options
          return
  
          order = [
              '38', '37', '46', '22', '45', '35', '44', '18', '34', '43', '6', '5', '17', '36', '13',
              # Apple HTTP Live Streaming
              '96', '95', '94', '93', '92', '132', '151',
              # 3D
              '85', '84', '102', '83', '101', '82', '100',
              # Dash video
              '137', '248', '136', '247', '135', '246',
              '245', '244', '134', '243', '133', '242', '160',
              # Dash audio
              '141', '172', '140', '171', '139',
          ]
  
          def format_info(f_id):
              info = YoutubeIE._formats[f_id].copy()
  
              # XXX: In real cases InfoExtractor._parse_mpd_formats() fills up 'acodec'
              # and 'vcodec', while in tests such information is incomplete since
              # commit a6c2c24479e5f4827ceb06f64d855329c0a6f593
              # test_YoutubeDL.test_youtube_format_selection is broken without
              # this fix
              if 'acodec' in info and 'vcodec' not in info:
                  info['vcodec'] = 'none'
              elif 'vcodec' in info and 'acodec' not in info:
                  info['acodec'] = 'none'
  
              info['format_id'] = f_id
              info['url'] = 'url:' + f_id
              return info
          formats_order = [format_info(f_id) for f_id in order]
  
          info_dict = _make_result(list(formats_order), extractor='youtube')
          ydl = YDL({'format': 'bestvideo+bestaudio'})
          yie = YoutubeIE(ydl)
          yie._sort_formats(info_dict['formats'])
          ydl.process_ie_result(info_dict)
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(downloaded['format_id'], '248+172')
          self.assertEqual(downloaded['ext'], 'mp4')
  
          info_dict = _make_result(list(formats_order), extractor='youtube')
          ydl = YDL({'format': 'bestvideo[height>=999999]+bestaudio/best'})
          yie = YoutubeIE(ydl)
          yie._sort_formats(info_dict['formats'])
          ydl.process_ie_result(info_dict)
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(downloaded['format_id'], '38')
  
          info_dict = _make_result(list(formats_order), extractor='youtube')
          ydl = YDL({'format': 'bestvideo/best,bestaudio'})
          yie = YoutubeIE(ydl)
          yie._sort_formats(info_dict['formats'])
          ydl.process_ie_result(info_dict)
          downloaded_ids = [info['format_id'] for info in ydl.downloaded_info_dicts]
          self.assertEqual(downloaded_ids, ['137', '141'])
  
          info_dict = _make_result(list(formats_order), extractor='youtube')
          ydl = YDL({'format': '(bestvideo[ext=mp4],bestvideo[ext=webm])+bestaudio'})
          yie = YoutubeIE(ydl)
          yie._sort_formats(info_dict['formats'])
          ydl.process_ie_result(info_dict)
          downloaded_ids = [info['format_id'] for info in ydl.downloaded_info_dicts]
          self.assertEqual(downloaded_ids, ['137+141', '248+141'])
  
          info_dict = _make_result(list(formats_order), extractor='youtube')
          ydl = YDL({'format': '(bestvideo[ext=mp4],bestvideo[ext=webm])[height<=720]+bestaudio'})
          yie = YoutubeIE(ydl)
          yie._sort_formats(info_dict['formats'])
          ydl.process_ie_result(info_dict)
          downloaded_ids = [info['format_id'] for info in ydl.downloaded_info_dicts]
          self.assertEqual(downloaded_ids, ['136+141', '247+141'])
  
          info_dict = _make_result(list(formats_order), extractor='youtube')
          ydl = YDL({'format': '(bestvideo[ext=none]/bestvideo[ext=webm])+bestaudio'})
          yie = YoutubeIE(ydl)
          yie._sort_formats(info_dict['formats'])
          ydl.process_ie_result(info_dict)
          downloaded_ids = [info['format_id'] for info in ydl.downloaded_info_dicts]
          self.assertEqual(downloaded_ids, ['248+141'])
  
          for f1, f2 in zip(formats_order, formats_order[1:]):
              info_dict = _make_result([f1, f2], extractor='youtube')
              ydl = YDL({'format': 'best/bestvideo'})
              yie = YoutubeIE(ydl)
              yie._sort_formats(info_dict['formats'])
              ydl.process_ie_result(info_dict)
              downloaded = ydl.downloaded_info_dicts[0]
              self.assertEqual(downloaded['format_id'], f1['format_id'])
  
              info_dict = _make_result([f2, f1], extractor='youtube')
              ydl = YDL({'format': 'best/bestvideo'})
              yie = YoutubeIE(ydl)
              yie._sort_formats(info_dict['formats'])
              ydl.process_ie_result(info_dict)
              downloaded = ydl.downloaded_info_dicts[0]
              self.assertEqual(downloaded['format_id'], f1['format_id'])
  
      def test_audio_only_extractor_format_selection(self):
          # For extractors with incomplete formats (all formats are audio-only or
          # video-only) best and worst should fallback to corresponding best/worst
          # video-only or audio-only formats (as per
          # https://github.com/ytdl-org/youtube-dl/pull/5556)
          formats = [
              {'format_id': 'low', 'ext': 'mp3', 'preference': 1, 'vcodec': 'none', 'url': TEST_URL},
              {'format_id': 'high', 'ext': 'mp3', 'preference': 2, 'vcodec': 'none', 'url': TEST_URL},
          ]
          info_dict = _make_result(formats)
  
          ydl = YDL({'format': 'best'})
          ydl.process_ie_result(info_dict.copy())
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(downloaded['format_id'], 'high')
  
          ydl = YDL({'format': 'worst'})
          ydl.process_ie_result(info_dict.copy())
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(downloaded['format_id'], 'low')
  
      def test_format_not_available(self):
          formats = [
              {'format_id': 'regular', 'ext': 'mp4', 'height': 360, 'url': TEST_URL},
              {'format_id': 'video', 'ext': 'mp4', 'height': 720, 'acodec': 'none', 'url': TEST_URL},
          ]
          info_dict = _make_result(formats)
  
          # This must fail since complete video-audio format does not match filter
          # and extractor does not provide incomplete only formats (i.e. only
          # video-only or audio-only).
          ydl = YDL({'format': 'best[height>360]'})
          self.assertRaises(ExtractorError, ydl.process_ie_result, info_dict.copy())
  
      def test_format_selection_issue_10083(self):
          # See https://github.com/ytdl-org/youtube-dl/issues/10083
          formats = [
              {'format_id': 'regular', 'height': 360, 'url': TEST_URL},
              {'format_id': 'video', 'height': 720, 'acodec': 'none', 'url': TEST_URL},
              {'format_id': 'audio', 'vcodec': 'none', 'url': TEST_URL},
          ]
          info_dict = _make_result(formats)
  
          ydl = YDL({'format': 'best[height>360]/bestvideo[height>360]+bestaudio'})
          ydl.process_ie_result(info_dict.copy())
          self.assertEqual(ydl.downloaded_info_dicts[0]['format_id'], 'video+audio')
  
      def test_invalid_format_specs(self):
          def assert_syntax_error(format_spec):
              ydl = YDL({'format': format_spec})
              info_dict = _make_result([{'format_id': 'foo', 'url': TEST_URL}])
              self.assertRaises(SyntaxError, ydl.process_ie_result, info_dict)
  
          assert_syntax_error('bestvideo,,best')
          assert_syntax_error('+bestaudio')
          assert_syntax_error('bestvideo+')
          assert_syntax_error('/')
  
      def test_format_filtering(self):
          formats = [
              {'format_id': 'A', 'filesize': 500, 'width': 1000},
              {'format_id': 'B', 'filesize': 1000, 'width': 500},
              {'format_id': 'C', 'filesize': 1000, 'width': 400},
              {'format_id': 'D', 'filesize': 2000, 'width': 600},
              {'format_id': 'E', 'filesize': 3000},
              {'format_id': 'F'},
              {'format_id': 'G', 'filesize': 1000000},
          ]
          for f in formats:
              f['url'] = 'http://_/'
              f['ext'] = 'unknown'
          info_dict = _make_result(formats)
  
          ydl = YDL({'format': 'best[filesize<3000]'})
          ydl.process_ie_result(info_dict)
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(downloaded['format_id'], 'D')
  
          ydl = YDL({'format': 'best[filesize<=3000]'})
          ydl.process_ie_result(info_dict)
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(downloaded['format_id'], 'E')
  
          ydl = YDL({'format': 'best[filesize <= ? 3000]'})
          ydl.process_ie_result(info_dict)
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(downloaded['format_id'], 'F')
  
          ydl = YDL({'format': 'best [filesize = 1000] [width>450]'})
          ydl.process_ie_result(info_dict)
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(downloaded['format_id'], 'B')
  
          ydl = YDL({'format': 'best [filesize = 1000] [width!=450]'})
          ydl.process_ie_result(info_dict)
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(downloaded['format_id'], 'C')
  
          ydl = YDL({'format': '[filesize>?1]'})
          ydl.process_ie_result(info_dict)
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(downloaded['format_id'], 'G')
  
          ydl = YDL({'format': '[filesize<1M]'})
          ydl.process_ie_result(info_dict)
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(downloaded['format_id'], 'E')
  
          ydl = YDL({'format': '[filesize<1MiB]'})
          ydl.process_ie_result(info_dict)
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(downloaded['format_id'], 'G')
  
          ydl = YDL({'format': 'all[width>=400][width<=600]'})
          ydl.process_ie_result(info_dict)
          downloaded_ids = [info['format_id'] for info in ydl.downloaded_info_dicts]
          self.assertEqual(downloaded_ids, ['B', 'C', 'D'])
  
          ydl = YDL({'format': 'best[height<40]'})
          try:
              ydl.process_ie_result(info_dict)
          except ExtractorError:
              pass
          self.assertEqual(ydl.downloaded_info_dicts, [])
  
      def test_default_format_spec(self):
          ydl = YDL({'simulate': True})
          self.assertEqual(ydl._default_format_spec({}), 'bestvideo*+bestaudio/best')
  
          ydl = YDL({})
          self.assertEqual(ydl._default_format_spec({'is_live': True}), 'best/bestvideo+bestaudio')
  
          ydl = YDL({'simulate': True})
          self.assertEqual(ydl._default_format_spec({'is_live': True}), 'bestvideo*+bestaudio/best')
  
          ydl = YDL({'outtmpl': '-'})
          self.assertEqual(ydl._default_format_spec({}), 'best/bestvideo+bestaudio')
  
          ydl = YDL({})
          self.assertEqual(ydl._default_format_spec({}, download=False), 'bestvideo*+bestaudio/best')
          self.assertEqual(ydl._default_format_spec({'is_live': True}), 'best/bestvideo+bestaudio')
  
  
  class TestYoutubeDL(unittest.TestCase):
      def test_subtitles(self):
          def s_formats(lang, autocaption=False):
              return [{
                  'ext': ext,
                  'url': 'http://localhost/video.%s.%s' % (lang, ext),
                  '_auto': autocaption,
              } for ext in ['vtt', 'srt', 'ass']]
          subtitles = dict((l, s_formats(l)) for l in ['en', 'fr', 'es'])
          auto_captions = dict((l, s_formats(l, True)) for l in ['it', 'pt', 'es'])
          info_dict = {
              'id': 'test',
              'title': 'Test',
              'url': 'http://localhost/video.mp4',
              'subtitles': subtitles,
              'automatic_captions': auto_captions,
              'extractor': 'TEST',
              'webpage_url': 'http://example.com/watch?v=shenanigans',
          }
  
          def get_info(params={}):
              params.setdefault('simulate', True)
              ydl = YDL(params)
              ydl.report_warning = lambda *args, **kargs: None
              return ydl.process_video_result(info_dict, download=False)
  
          result = get_info()
          self.assertFalse(result.get('requested_subtitles'))
          self.assertEqual(result['subtitles'], subtitles)
          self.assertEqual(result['automatic_captions'], auto_captions)
  
          result = get_info({'writesubtitles': True})
          subs = result['requested_subtitles']
          self.assertTrue(subs)
          self.assertEqual(set(subs.keys()), set(['en']))
          self.assertTrue(subs['en'].get('data') is None)
          self.assertEqual(subs['en']['ext'], 'ass')
  
          result = get_info({'writesubtitles': True, 'subtitlesformat': 'foo/srt'})
          subs = result['requested_subtitles']
          self.assertEqual(subs['en']['ext'], 'srt')
  
          result = get_info({'writesubtitles': True, 'subtitleslangs': ['es', 'fr', 'it']})
          subs = result['requested_subtitles']
          self.assertTrue(subs)
          self.assertEqual(set(subs.keys()), set(['es', 'fr']))
  
          result = get_info({'writesubtitles': True, 'subtitleslangs': ['all', '-en']})
          subs = result['requested_subtitles']
          self.assertTrue(subs)
          self.assertEqual(set(subs.keys()), set(['es', 'fr']))
  
          result = get_info({'writesubtitles': True, 'subtitleslangs': ['en', 'fr', '-en']})
          subs = result['requested_subtitles']
          self.assertTrue(subs)
          self.assertEqual(set(subs.keys()), set(['fr']))
  
          result = get_info({'writesubtitles': True, 'subtitleslangs': ['-en', 'en']})
          subs = result['requested_subtitles']
          self.assertTrue(subs)
          self.assertEqual(set(subs.keys()), set(['en']))
  
          result = get_info({'writesubtitles': True, 'subtitleslangs': ['e.+']})
          subs = result['requested_subtitles']
          self.assertTrue(subs)
          self.assertEqual(set(subs.keys()), set(['es', 'en']))
  
          result = get_info({'writesubtitles': True, 'writeautomaticsub': True, 'subtitleslangs': ['es', 'pt']})
          subs = result['requested_subtitles']
          self.assertTrue(subs)
          self.assertEqual(set(subs.keys()), set(['es', 'pt']))
          self.assertFalse(subs['es']['_auto'])
          self.assertTrue(subs['pt']['_auto'])
  
          result = get_info({'writeautomaticsub': True, 'subtitleslangs': ['es', 'pt']})
          subs = result['requested_subtitles']
          self.assertTrue(subs)
          self.assertEqual(set(subs.keys()), set(['es', 'pt']))
          self.assertTrue(subs['es']['_auto'])
          self.assertTrue(subs['pt']['_auto'])
  
      def test_add_extra_info(self):
          test_dict = {
              'extractor': 'Foo',
          }
          extra_info = {
              'extractor': 'Bar',
              'playlist': 'funny videos',
          }
          YDL.add_extra_info(test_dict, extra_info)
          self.assertEqual(test_dict['extractor'], 'Foo')
          self.assertEqual(test_dict['playlist'], 'funny videos')
  
      def test_prepare_filename(self):
          info = {
              'id': '1234',
              'ext': 'mp4',
              'width': None,
              'height': 1080,
              'title1': '$PATH',
              'title2': '%PATH%',
          }
  
          def fname(templ, na_placeholder='NA'):
              params = {'outtmpl': templ}
              if na_placeholder != 'NA':
                  params['outtmpl_na_placeholder'] = na_placeholder
              ydl = YoutubeDL(params)
              return ydl.prepare_filename(info)
          self.assertEqual(fname('%(id)s.%(ext)s'), '1234.mp4')
          self.assertEqual(fname('%(id)s-%(width)s.%(ext)s'), '1234-NA.mp4')
          NA_TEST_OUTTMPL = '%(uploader_date)s-%(width)d-%(id)s.%(ext)s'
          # Replace missing fields with 'NA' by default
          self.assertEqual(fname(NA_TEST_OUTTMPL), 'NA-NA-1234.mp4')
          # Or by provided placeholder
          self.assertEqual(fname(NA_TEST_OUTTMPL, na_placeholder='none'), 'none-none-1234.mp4')
          self.assertEqual(fname(NA_TEST_OUTTMPL, na_placeholder=''), '--1234.mp4')
          self.assertEqual(fname('%(height)d.%(ext)s'), '1080.mp4')
          self.assertEqual(fname('%(height)6d.%(ext)s'), '  1080.mp4')
          self.assertEqual(fname('%(height)-6d.%(ext)s'), '1080  .mp4')
          self.assertEqual(fname('%(height)06d.%(ext)s'), '001080.mp4')
          self.assertEqual(fname('%(height) 06d.%(ext)s'), ' 01080.mp4')
          self.assertEqual(fname('%(height)   06d.%(ext)s'), ' 01080.mp4')
          self.assertEqual(fname('%(height)0 6d.%(ext)s'), ' 01080.mp4')
          self.assertEqual(fname('%(height)0   6d.%(ext)s'), ' 01080.mp4')
          self.assertEqual(fname('%(height)   0   6d.%(ext)s'), ' 01080.mp4')
          self.assertEqual(fname('%%'), '%')
          self.assertEqual(fname('%%%%'), '%%')
          self.assertEqual(fname('%%(height)06d.%(ext)s'), '%(height)06d.mp4')
          self.assertEqual(fname('%(width)06d.%(ext)s'), 'NA.mp4')
          self.assertEqual(fname('%(width)06d.%%(ext)s'), 'NA.%(ext)s')
          self.assertEqual(fname('%%(width)06d.%(ext)s'), '%(width)06d.mp4')
          self.assertEqual(fname('Hello %(title1)s'), 'Hello $PATH')
          self.assertEqual(fname('Hello %(title2)s'), 'Hello %PATH%')
  
      def test_format_note(self):
          ydl = YoutubeDL()
          self.assertEqual(ydl._format_note({}), '')
          assertRegexpMatches(self, ydl._format_note({
              'vbr': 10,
          }), r'^\s*10k$')
          assertRegexpMatches(self, ydl._format_note({
              'fps': 30,
          }), r'^30fps$')
  
      def test_postprocessors(self):
          filename = 'post-processor-testfile.mp4'
          audiofile = filename + '.mp3'
  
          class SimplePP(PostProcessor):
              def run(self, info):
                  with open(audiofile, 'wt') as f:
                      f.write('EXAMPLE')
                  return [info['filepath']], info
  
          def run_pp(params, PP):
              with open(filename, 'wt') as f:
                  f.write('EXAMPLE')
              ydl = YoutubeDL(params)
              ydl.add_post_processor(PP())
              ydl.post_process(filename, {'filepath': filename})
  
          run_pp({'keepvideo': True}, SimplePP)
          self.assertTrue(os.path.exists(filename), '%s doesn\'t exist' % filename)
          self.assertTrue(os.path.exists(audiofile), '%s doesn\'t exist' % audiofile)
          os.unlink(filename)
          os.unlink(audiofile)
  
          run_pp({'keepvideo': False}, SimplePP)
          self.assertFalse(os.path.exists(filename), '%s exists' % filename)
          self.assertTrue(os.path.exists(audiofile), '%s doesn\'t exist' % audiofile)
          os.unlink(audiofile)
  
          class ModifierPP(PostProcessor):
              def run(self, info):
                  with open(info['filepath'], 'wt') as f:
                      f.write('MODIFIED')
                  return [], info
  
          run_pp({'keepvideo': False}, ModifierPP)
          self.assertTrue(os.path.exists(filename), '%s doesn\'t exist' % filename)
          os.unlink(filename)
  
      def test_match_filter(self):
          class FilterYDL(YDL):
              def __init__(self, *args, **kwargs):
                  super(FilterYDL, self).__init__(*args, **kwargs)
                  self.params['simulate'] = True
  
              def process_info(self, info_dict):
                  super(YDL, self).process_info(info_dict)
  
              def _match_entry(self, info_dict, incomplete):
                  res = super(FilterYDL, self)._match_entry(info_dict, incomplete)
                  if res is None:
                      self.downloaded_info_dicts.append(info_dict)
                  return res
  
          first = {
              'id': '1',
              'url': TEST_URL,
              'title': 'one',
              'extractor': 'TEST',
              'duration': 30,
              'filesize': 10 * 1024,
              'playlist_id': '42',
              'uploader': "變態妍字幕版 太妍 тест",
              'creator': "тест ' 123 ' тест--",
              'webpage_url': 'http://example.com/watch?v=shenanigans',
          }
          second = {
              'id': '2',
              'url': TEST_URL,
              'title': 'two',
              'extractor': 'TEST',
              'duration': 10,
              'description': 'foo',
              'filesize': 5 * 1024,
              'playlist_id': '43',
              'uploader': "тест 123",
              'webpage_url': 'http://example.com/watch?v=SHENANIGANS',
          }
          videos = [first, second]
  
          def get_videos(filter_=None):
              ydl = FilterYDL({'match_filter': filter_})
              for v in videos:
                  ydl.process_ie_result(v, download=True)
              return [v['id'] for v in ydl.downloaded_info_dicts]
  
          res = get_videos()
          self.assertEqual(res, ['1', '2'])
  
          def f(v):
              if v['id'] == '1':
                  return None
              else:
                  return 'Video id is not 1'
          res = get_videos(f)
          self.assertEqual(res, ['1'])
  
          f = match_filter_func('duration < 30')
          res = get_videos(f)
          self.assertEqual(res, ['2'])
  
          f = match_filter_func('description = foo')
          res = get_videos(f)
          self.assertEqual(res, ['2'])
  
          f = match_filter_func('description =? foo')
          res = get_videos(f)
          self.assertEqual(res, ['1', '2'])
  
          f = match_filter_func('filesize > 5KiB')
          res = get_videos(f)
          self.assertEqual(res, ['1'])
  
          f = match_filter_func('playlist_id = 42')
          res = get_videos(f)
          self.assertEqual(res, ['1'])
  
          f = match_filter_func('uploader = "變態妍字幕版 太妍 тест"')
          res = get_videos(f)
          self.assertEqual(res, ['1'])
  
          f = match_filter_func('uploader != "變態妍字幕版 太妍 тест"')
          res = get_videos(f)
          self.assertEqual(res, ['2'])
  
          f = match_filter_func('creator = "тест \' 123 \' тест--"')
          res = get_videos(f)
          self.assertEqual(res, ['1'])
  
          f = match_filter_func("creator = 'тест \\' 123 \\' тест--'")
          res = get_videos(f)
          self.assertEqual(res, ['1'])
  
          f = match_filter_func(r"creator = 'тест \' 123 \' тест--' & duration > 30")
          res = get_videos(f)
          self.assertEqual(res, [])
  
      def test_playlist_items_selection(self):
          entries = [{
              'id': compat_str(i),
              'title': compat_str(i),
              'url': TEST_URL,
          } for i in range(1, 5)]
          playlist = {
              '_type': 'playlist',
              'id': 'test',
              'entries': entries,
              'extractor': 'test:playlist',
              'extractor_key': 'test:playlist',
              'webpage_url': 'http://example.com',
          }
  
          def get_downloaded_info_dicts(params):
              ydl = YDL(params)
              # make a deep copy because the dictionary and nested entries
              # can be modified
              ydl.process_ie_result(copy.deepcopy(playlist))
              return ydl.downloaded_info_dicts
  
          def get_ids(params):
              return [int(v['id']) for v in get_downloaded_info_dicts(params)]
  
          result = get_ids({})
          self.assertEqual(result, [1, 2, 3, 4])
  
          result = get_ids({'playlistend': 10})
          self.assertEqual(result, [1, 2, 3, 4])
  
          result = get_ids({'playlistend': 2})
          self.assertEqual(result, [1, 2])
  
          result = get_ids({'playliststart': 10})
          self.assertEqual(result, [])
  
          result = get_ids({'playliststart': 2})
          self.assertEqual(result, [2, 3, 4])
  
          result = get_ids({'playlist_items': '2-4'})
          self.assertEqual(result, [2, 3, 4])
  
          result = get_ids({'playlist_items': '2,4'})
          self.assertEqual(result, [2, 4])
  
          result = get_ids({'playlist_items': '10'})
          self.assertEqual(result, [])
  
          result = get_ids({'playlist_items': '3-10'})
          self.assertEqual(result, [3, 4])
  
          result = get_ids({'playlist_items': '2-4,3-4,3'})
          self.assertEqual(result, [2, 3, 4])
  
          # Tests for https://github.com/ytdl-org/youtube-dl/issues/10591
          # @{
          result = get_downloaded_info_dicts({'playlist_items': '2-4,3-4,3'})
          self.assertEqual(result[0]['playlist_index'], 2)
          self.assertEqual(result[1]['playlist_index'], 3)
  
          result = get_downloaded_info_dicts({'playlist_items': '2-4,3-4,3'})
          self.assertEqual(result[0]['playlist_index'], 2)
          self.assertEqual(result[1]['playlist_index'], 3)
          self.assertEqual(result[2]['playlist_index'], 4)
  
          result = get_downloaded_info_dicts({'playlist_items': '4,2'})
          self.assertEqual(result[0]['playlist_index'], 4)
          self.assertEqual(result[1]['playlist_index'], 2)
          # @}
  
      def test_urlopen_no_file_protocol(self):
          # see https://github.com/ytdl-org/youtube-dl/issues/8227
          ydl = YDL()
          self.assertRaises(compat_urllib_error.URLError, ydl.urlopen, 'file:///etc/passwd')
  
      def test_do_not_override_ie_key_in_url_transparent(self):
          ydl = YDL()
  
          class Foo1IE(InfoExtractor):
              _VALID_URL = r'foo1:'
  
              def _real_extract(self, url):
                  return {
                      '_type': 'url_transparent',
                      'url': 'foo2:',
                      'ie_key': 'Foo2',
                      'title': 'foo1 title',
                      'id': 'foo1_id',
                  }
  
          class Foo2IE(InfoExtractor):
              _VALID_URL = r'foo2:'
  
              def _real_extract(self, url):
                  return {
                      '_type': 'url',
                      'url': 'foo3:',
                      'ie_key': 'Foo3',
                  }
  
          class Foo3IE(InfoExtractor):
              _VALID_URL = r'foo3:'
  
              def _real_extract(self, url):
                  return _make_result([{'url': TEST_URL}], title='foo3 title')
  
          ydl.add_info_extractor(Foo1IE(ydl))
          ydl.add_info_extractor(Foo2IE(ydl))
          ydl.add_info_extractor(Foo3IE(ydl))
          ydl.extract_info('foo1:')
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(downloaded['url'], TEST_URL)
          self.assertEqual(downloaded['title'], 'foo1 title')
          self.assertEqual(downloaded['id'], 'testid')
          self.assertEqual(downloaded['extractor'], 'testex')
          self.assertEqual(downloaded['extractor_key'], 'TestEx')
  
      # Test case for https://github.com/ytdl-org/youtube-dl/issues/27064
      def test_ignoreerrors_for_playlist_with_url_transparent_iterable_entries(self):
  
          class _YDL(YDL):
              def __init__(self, *args, **kwargs):
                  super(_YDL, self).__init__(*args, **kwargs)
  
              def trouble(self, s, tb=None):
                  pass
  
          ydl = _YDL({
              'format': 'extra',
              'ignoreerrors': True,
          })
  
          class VideoIE(InfoExtractor):
              _VALID_URL = r'video:(?P<id>\d+)'
  
              def _real_extract(self, url):
                  video_id = self._match_id(url)
                  formats = [{
                      'format_id': 'default',
                      'url': 'url:',
                  }]
                  if video_id == '0':
                      raise ExtractorError('foo')
                  if video_id == '2':
                      formats.append({
                          'format_id': 'extra',
                          'url': TEST_URL,
                      })
                  return {
                      'id': video_id,
                      'title': 'Video %s' % video_id,
                      'formats': formats,
                  }
  
          class PlaylistIE(InfoExtractor):
              _VALID_URL = r'playlist:'
  
              def _entries(self):
                  for n in range(3):
                      video_id = compat_str(n)
                      yield {
                          '_type': 'url_transparent',
                          'ie_key': VideoIE.ie_key(),
                          'id': video_id,
                          'url': 'video:%s' % video_id,
                          'title': 'Video Transparent %s' % video_id,
                      }
  
              def _real_extract(self, url):
                  return self.playlist_result(self._entries())
  
          ydl.add_info_extractor(VideoIE(ydl))
          ydl.add_info_extractor(PlaylistIE(ydl))
          info = ydl.extract_info('playlist:')
          entries = info['entries']
          self.assertEqual(len(entries), 3)
          self.assertTrue(entries[0] is None)
          self.assertTrue(entries[1] is None)
          self.assertEqual(len(ydl.downloaded_info_dicts), 1)
          downloaded = ydl.downloaded_info_dicts[0]
          self.assertEqual(entries[2], downloaded)
          self.assertEqual(downloaded['url'], TEST_URL)
          self.assertEqual(downloaded['title'], 'Video Transparent 2')
          self.assertEqual(downloaded['id'], '2')
          self.assertEqual(downloaded['extractor'], 'Video')
          self.assertEqual(downloaded['extractor_key'], 'Video')
  
  
  if __name__ == '__main__':
      unittest.main()
  