test/test_utils.py

   1 #!/usr/bin/env python3
   2
   3 # Allow direct execution
   4 import os
   5 import sys
   6 import unittest
   7
   8 sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
   9
  10
  11 import contextlib
  12 import io
  13 import itertools
  14 import json
  15 import xml.etree.ElementTree
  16
  17 from yt_dlp.compat import (
  18     compat_etree_fromstring,
  19     compat_HTMLParseError,
  20     compat_os_name,
  21 )
  22 from yt_dlp.utils import (
  23     Config,
  24     DateRange,
  25     ExtractorError,
  26     InAdvancePagedList,
  27     LazyList,
  28     OnDemandPagedList,
  29     age_restricted,
  30     args_to_str,
  31     base_url,
  32     caesar,
  33     clean_html,
  34     clean_podcast_url,
  35     cli_bool_option,
  36     cli_option,
  37     cli_valueless_option,
  38     date_from_str,
  39     datetime_from_str,
  40     detect_exe_version,
  41     determine_ext,
  42     determine_file_encoding,
  43     dfxp2srt,
  44     dict_get,
  45     encode_base_n,
  46     encode_compat_str,
  47     encodeFilename,
  48     escape_rfc3986,
  49     escape_url,
  50     expand_path,
  51     extract_attributes,
  52     find_xpath_attr,
  53     fix_xml_ampersands,
  54     float_or_none,
  55     format_bytes,
  56     get_element_by_attribute,
  57     get_element_by_class,
  58     get_element_html_by_attribute,
  59     get_element_html_by_class,
  60     get_element_text_and_html_by_tag,
  61     get_elements_by_attribute,
  62     get_elements_by_class,
  63     get_elements_html_by_attribute,
  64     get_elements_html_by_class,
  65     get_elements_text_and_html_by_attribute,
  66     int_or_none,
  67     intlist_to_bytes,
  68     iri_to_uri,
  69     is_html,
  70     js_to_json,
  71     limit_length,
  72     locked_file,
  73     lowercase_escape,
  74     match_str,
  75     merge_dicts,
  76     mimetype2ext,
  77     month_by_name,
  78     multipart_encode,
  79     ohdave_rsa_encrypt,
  80     orderedSet,
  81     parse_age_limit,
  82     parse_bitrate,
  83     parse_codecs,
  84     parse_count,
  85     parse_dfxp_time_expr,
  86     parse_duration,
  87     parse_filesize,
  88     parse_iso8601,
  89     parse_qs,
  90     parse_resolution,
  91     pkcs1pad,
  92     prepend_extension,
  93     read_batch_urls,
  94     remove_end,
  95     remove_quotes,
  96     remove_start,
  97     render_table,
  98     replace_extension,
  99     rot47,
 100     sanitize_filename,
 101     sanitize_path,
 102     sanitize_url,
 103     sanitized_Request,
 104     shell_quote,
 105     smuggle_url,
 106     str_to_int,
 107     strip_jsonp,
 108     strip_or_none,
 109     subtitles_filename,
 110     timeconvert,
 111     unescapeHTML,
 112     unified_strdate,
 113     unified_timestamp,
 114     unsmuggle_url,
 115     update_url_query,
 116     uppercase_escape,
 117     url_basename,
 118     url_or_none,
 119     urlencode_postdata,
 120     urljoin,
 121     urshift,
 122     version_tuple,
 123     xpath_attr,
 124     xpath_element,
 125     xpath_text,
 126     xpath_with_ns,
 127 )
 128
 129
 130 class TestUtil(unittest.TestCase):
 131     def test_timeconvert(self):
 132         self.assertTrue(timeconvert('') is None)
 133         self.assertTrue(timeconvert('bougrg') is None)
 134
 135     def test_sanitize_filename(self):
 136         self.assertEqual(sanitize_filename(''), '')
 137         self.assertEqual(sanitize_filename('abc'), 'abc')
 138         self.assertEqual(sanitize_filename('abc_d-e'), 'abc_d-e')
 139
 140         self.assertEqual(sanitize_filename('123'), '123')
 141
 142         self.assertEqual('abc_de', sanitize_filename('abc/de'))
 143         self.assertFalse('/' in sanitize_filename('abc/de///'))
 144
 145         self.assertEqual('abc_de', sanitize_filename('abc/<>\\*|de'))
 146         self.assertEqual('xxx', sanitize_filename('xxx/<>\\*|'))
 147         self.assertEqual('yes no', sanitize_filename('yes? no'))
 148         self.assertEqual('this - that', sanitize_filename('this: that'))
 149
 150         self.assertEqual(sanitize_filename('AT&T'), 'AT&T')
 151         aumlaut = 'ä'
 152         self.assertEqual(sanitize_filename(aumlaut), aumlaut)
 153         tests = '\u043a\u0438\u0440\u0438\u043b\u043b\u0438\u0446\u0430'
 154         self.assertEqual(sanitize_filename(tests), tests)
 155
 156         self.assertEqual(
 157             sanitize_filename('New World record at 0:12:34'),
 158             'New World record at 0_12_34')
 159
 160         self.assertEqual(sanitize_filename('--gasdgf'), '--gasdgf')
 161         self.assertEqual(sanitize_filename('--gasdgf', is_id=True), '--gasdgf')
 162         self.assertEqual(sanitize_filename('--gasdgf', is_id=False), '_-gasdgf')
 163         self.assertEqual(sanitize_filename('.gasdgf'), '.gasdgf')
 164         self.assertEqual(sanitize_filename('.gasdgf', is_id=True), '.gasdgf')
 165         self.assertEqual(sanitize_filename('.gasdgf', is_id=False), 'gasdgf')
 166
 167         forbidden = '"\0\\/'
 168         for fc in forbidden:
 169             for fbc in forbidden:
 170                 self.assertTrue(fbc not in sanitize_filename(fc))
 171
 172     def test_sanitize_filename_restricted(self):
 173         self.assertEqual(sanitize_filename('abc', restricted=True), 'abc')
 174         self.assertEqual(sanitize_filename('abc_d-e', restricted=True), 'abc_d-e')
 175
 176         self.assertEqual(sanitize_filename('123', restricted=True), '123')
 177
 178         self.assertEqual('abc_de', sanitize_filename('abc/de', restricted=True))
 179         self.assertFalse('/' in sanitize_filename('abc/de///', restricted=True))
 180
 181         self.assertEqual('abc_de', sanitize_filename('abc/<>\\*|de', restricted=True))
 182         self.assertEqual('xxx', sanitize_filename('xxx/<>\\*|', restricted=True))
 183         self.assertEqual('yes_no', sanitize_filename('yes? no', restricted=True))
 184         self.assertEqual('this_-_that', sanitize_filename('this: that', restricted=True))
 185
 186         tests = 'aäb\u4e2d\u56fd\u7684c'
 187         self.assertEqual(sanitize_filename(tests, restricted=True), 'aab_c')
 188         self.assertTrue(sanitize_filename('\xf6', restricted=True) != '')  # No empty filename
 189
 190         forbidden = '"\0\\/&!: \'\t\n()[]{}$;`^,#'
 191         for fc in forbidden:
 192             for fbc in forbidden:
 193                 self.assertTrue(fbc not in sanitize_filename(fc, restricted=True))
 194
 195         # Handle a common case more neatly
 196         self.assertEqual(sanitize_filename('\u5927\u58f0\u5e26 - Song', restricted=True), 'Song')
 197         self.assertEqual(sanitize_filename('\u603b\u7edf: Speech', restricted=True), 'Speech')
 198         # .. but make sure the file name is never empty
 199         self.assertTrue(sanitize_filename('-', restricted=True) != '')
 200         self.assertTrue(sanitize_filename(':', restricted=True) != '')
 201
 202         self.assertEqual(sanitize_filename(
 203             'ÂÃÄÀÁÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖŐØŒÙÚÛÜŰÝÞßàáâãäåæçèéêëìíîïðñòóôõöőøœùúûüűýþÿ', restricted=True),
 204             'AAAAAAAECEEEEIIIIDNOOOOOOOOEUUUUUYTHssaaaaaaaeceeeeiiiionooooooooeuuuuuythy')
 205
 206     def test_sanitize_ids(self):
 207         self.assertEqual(sanitize_filename('_n_cd26wFpw', is_id=True), '_n_cd26wFpw')
 208         self.assertEqual(sanitize_filename('_BD_eEpuzXw', is_id=True), '_BD_eEpuzXw')
 209         self.assertEqual(sanitize_filename('N0Y__7-UOdI', is_id=True), 'N0Y__7-UOdI')
 210
 211     def test_sanitize_path(self):
 212         if sys.platform != 'win32':
 213             return
 214
 215         self.assertEqual(sanitize_path('abc'), 'abc')
 216         self.assertEqual(sanitize_path('abc/def'), 'abc\\def')
 217         self.assertEqual(sanitize_path('abc\\def'), 'abc\\def')
 218         self.assertEqual(sanitize_path('abc|def'), 'abc#def')
 219         self.assertEqual(sanitize_path('<>:"|?*'), '#######')
 220         self.assertEqual(sanitize_path('C:/abc/def'), 'C:\\abc\\def')
 221         self.assertEqual(sanitize_path('C?:/abc/def'), 'C##\\abc\\def')
 222
 223         self.assertEqual(sanitize_path('\\\\?\\UNC\\ComputerName\\abc'), '\\\\?\\UNC\\ComputerName\\abc')
 224         self.assertEqual(sanitize_path('\\\\?\\UNC/ComputerName/abc'), '\\\\?\\UNC\\ComputerName\\abc')
 225
 226         self.assertEqual(sanitize_path('\\\\?\\C:\\abc'), '\\\\?\\C:\\abc')
 227         self.assertEqual(sanitize_path('\\\\?\\C:/abc'), '\\\\?\\C:\\abc')
 228         self.assertEqual(sanitize_path('\\\\?\\C:\\ab?c\\de:f'), '\\\\?\\C:\\ab#c\\de#f')
 229         self.assertEqual(sanitize_path('\\\\?\\C:\\abc'), '\\\\?\\C:\\abc')
 230
 231         self.assertEqual(
 232             sanitize_path('youtube/%(uploader)s/%(autonumber)s-%(title)s-%(upload_date)s.%(ext)s'),
 233             'youtube\\%(uploader)s\\%(autonumber)s-%(title)s-%(upload_date)s.%(ext)s')
 234
 235         self.assertEqual(
 236             sanitize_path('youtube/TheWreckingYard ./00001-Not bad, Especially for Free! (1987 Yamaha 700)-20141116.mp4.part'),
 237             'youtube\\TheWreckingYard #\\00001-Not bad, Especially for Free! (1987 Yamaha 700)-20141116.mp4.part')
 238         self.assertEqual(sanitize_path('abc/def...'), 'abc\\def..#')
 239         self.assertEqual(sanitize_path('abc.../def'), 'abc..#\\def')
 240         self.assertEqual(sanitize_path('abc.../def...'), 'abc..#\\def..#')
 241
 242         self.assertEqual(sanitize_path('../abc'), '..\\abc')
 243         self.assertEqual(sanitize_path('../../abc'), '..\\..\\abc')
 244         self.assertEqual(sanitize_path('./abc'), 'abc')
 245         self.assertEqual(sanitize_path('./../abc'), '..\\abc')
 246
 247     def test_sanitize_url(self):
 248         self.assertEqual(sanitize_url('//foo.bar'), 'http://foo.bar')
 249         self.assertEqual(sanitize_url('httpss://foo.bar'), 'https://foo.bar')
 250         self.assertEqual(sanitize_url('rmtps://foo.bar'), 'rtmps://foo.bar')
 251         self.assertEqual(sanitize_url('https://foo.bar'), 'https://foo.bar')
 252         self.assertEqual(sanitize_url('foo bar'), 'foo bar')
 253
 254     def test_extract_basic_auth(self):
 255         auth_header = lambda url: sanitized_Request(url).get_header('Authorization')
 256         self.assertFalse(auth_header('http://foo.bar'))
 257         self.assertFalse(auth_header('http://:foo.bar'))
 258         self.assertEqual(auth_header('http://@foo.bar'), 'Basic Og==')
 259         self.assertEqual(auth_header('http://:pass@foo.bar'), 'Basic OnBhc3M=')
 260         self.assertEqual(auth_header('http://user:@foo.bar'), 'Basic dXNlcjo=')
 261         self.assertEqual(auth_header('http://user:pass@foo.bar'), 'Basic dXNlcjpwYXNz')
 262
 263     def test_expand_path(self):
 264         def env(var):
 265             return f'%{var}%' if sys.platform == 'win32' else f'${var}'
 266
 267         os.environ['yt_dlp_EXPATH_PATH'] = 'expanded'
 268         self.assertEqual(expand_path(env('yt_dlp_EXPATH_PATH')), 'expanded')
 269
 270         old_home = os.environ.get('HOME')
 271         test_str = R'C:\Documents and Settings\тест\Application Data'
 272         try:
 273             os.environ['HOME'] = test_str
 274             self.assertEqual(expand_path(env('HOME')), os.getenv('HOME'))
 275             self.assertEqual(expand_path('~'), os.getenv('HOME'))
 276             self.assertEqual(
 277                 expand_path('~/%s' % env('yt_dlp_EXPATH_PATH')),
 278                 '%s/expanded' % os.getenv('HOME'))
 279         finally:
 280             os.environ['HOME'] = old_home or ''
 281
 282     def test_prepend_extension(self):
 283         self.assertEqual(prepend_extension('abc.ext', 'temp'), 'abc.temp.ext')
 284         self.assertEqual(prepend_extension('abc.ext', 'temp', 'ext'), 'abc.temp.ext')
 285         self.assertEqual(prepend_extension('abc.unexpected_ext', 'temp', 'ext'), 'abc.unexpected_ext.temp')
 286         self.assertEqual(prepend_extension('abc', 'temp'), 'abc.temp')
 287         self.assertEqual(prepend_extension('.abc', 'temp'), '.abc.temp')
 288         self.assertEqual(prepend_extension('.abc.ext', 'temp'), '.abc.temp.ext')
 289
 290     def test_replace_extension(self):
 291         self.assertEqual(replace_extension('abc.ext', 'temp'), 'abc.temp')
 292         self.assertEqual(replace_extension('abc.ext', 'temp', 'ext'), 'abc.temp')
 293         self.assertEqual(replace_extension('abc.unexpected_ext', 'temp', 'ext'), 'abc.unexpected_ext.temp')
 294         self.assertEqual(replace_extension('abc', 'temp'), 'abc.temp')
 295         self.assertEqual(replace_extension('.abc', 'temp'), '.abc.temp')
 296         self.assertEqual(replace_extension('.abc.ext', 'temp'), '.abc.temp')
 297
 298     def test_subtitles_filename(self):
 299         self.assertEqual(subtitles_filename('abc.ext', 'en', 'vtt'), 'abc.en.vtt')
 300         self.assertEqual(subtitles_filename('abc.ext', 'en', 'vtt', 'ext'), 'abc.en.vtt')
 301         self.assertEqual(subtitles_filename('abc.unexpected_ext', 'en', 'vtt', 'ext'), 'abc.unexpected_ext.en.vtt')
 302
 303     def test_remove_start(self):
 304         self.assertEqual(remove_start(None, 'A - '), None)
 305         self.assertEqual(remove_start('A - B', 'A - '), 'B')
 306         self.assertEqual(remove_start('B - A', 'A - '), 'B - A')
 307
 308     def test_remove_end(self):
 309         self.assertEqual(remove_end(None, ' - B'), None)
 310         self.assertEqual(remove_end('A - B', ' - B'), 'A')
 311         self.assertEqual(remove_end('B - A', ' - B'), 'B - A')
 312
 313     def test_remove_quotes(self):
 314         self.assertEqual(remove_quotes(None), None)
 315         self.assertEqual(remove_quotes('"'), '"')
 316         self.assertEqual(remove_quotes("'"), "'")
 317         self.assertEqual(remove_quotes(';'), ';')
 318         self.assertEqual(remove_quotes('";'), '";')
 319         self.assertEqual(remove_quotes('""'), '')
 320         self.assertEqual(remove_quotes('";"'), ';')
 321
 322     def test_ordered_set(self):
 323         self.assertEqual(orderedSet([1, 1, 2, 3, 4, 4, 5, 6, 7, 3, 5]), [1, 2, 3, 4, 5, 6, 7])
 324         self.assertEqual(orderedSet([]), [])
 325         self.assertEqual(orderedSet([1]), [1])
 326         # keep the list ordered
 327         self.assertEqual(orderedSet([135, 1, 1, 1]), [135, 1])
 328
 329     def test_unescape_html(self):
 330         self.assertEqual(unescapeHTML('%20;'), '%20;')
 331         self.assertEqual(unescapeHTML('&#x2F;'), '/')
 332         self.assertEqual(unescapeHTML('&#47;'), '/')
 333         self.assertEqual(unescapeHTML('&eacute;'), 'é')
 334         self.assertEqual(unescapeHTML('&#2013266066;'), '&#2013266066;')
 335         self.assertEqual(unescapeHTML('&a&quot;'), '&a"')
 336         # HTML5 entities
 337         self.assertEqual(unescapeHTML('&period;&apos;'), '.\'')
 338
 339     def test_date_from_str(self):
 340         self.assertEqual(date_from_str('yesterday'), date_from_str('now-1day'))
 341         self.assertEqual(date_from_str('now+7day'), date_from_str('now+1week'))
 342         self.assertEqual(date_from_str('now+14day'), date_from_str('now+2week'))
 343         self.assertEqual(date_from_str('20200229+365day'), date_from_str('20200229+1year'))
 344         self.assertEqual(date_from_str('20210131+28day'), date_from_str('20210131+1month'))
 345
 346     def test_datetime_from_str(self):
 347         self.assertEqual(datetime_from_str('yesterday', precision='day'), datetime_from_str('now-1day', precision='auto'))
 348         self.assertEqual(datetime_from_str('now+7day', precision='day'), datetime_from_str('now+1week', precision='auto'))
 349         self.assertEqual(datetime_from_str('now+14day', precision='day'), datetime_from_str('now+2week', precision='auto'))
 350         self.assertEqual(datetime_from_str('20200229+365day', precision='day'), datetime_from_str('20200229+1year', precision='auto'))
 351         self.assertEqual(datetime_from_str('20210131+28day', precision='day'), datetime_from_str('20210131+1month', precision='auto'))
 352         self.assertEqual(datetime_from_str('20210131+59day', precision='day'), datetime_from_str('20210131+2month', precision='auto'))
 353         self.assertEqual(datetime_from_str('now+1day', precision='hour'), datetime_from_str('now+24hours', precision='auto'))
 354         self.assertEqual(datetime_from_str('now+23hours', precision='hour'), datetime_from_str('now+23hours', precision='auto'))
 355
 356     def test_daterange(self):
 357         _20century = DateRange("19000101", "20000101")
 358         self.assertFalse("17890714" in _20century)
 359         _ac = DateRange("00010101")
 360         self.assertTrue("19690721" in _ac)
 361         _firstmilenium = DateRange(end="10000101")
 362         self.assertTrue("07110427" in _firstmilenium)
 363
 364     def test_unified_dates(self):
 365         self.assertEqual(unified_strdate('December 21, 2010'), '20101221')
 366         self.assertEqual(unified_strdate('8/7/2009'), '20090708')
 367         self.assertEqual(unified_strdate('Dec 14, 2012'), '20121214')
 368         self.assertEqual(unified_strdate('2012/10/11 01:56:38 +0000'), '20121011')
 369         self.assertEqual(unified_strdate('1968 12 10'), '19681210')
 370         self.assertEqual(unified_strdate('1968-12-10'), '19681210')
 371         self.assertEqual(unified_strdate('31-07-2022 20:00'), '20220731')
 372         self.assertEqual(unified_strdate('28/01/2014 21:00:00 +0100'), '20140128')
 373         self.assertEqual(
 374             unified_strdate('11/26/2014 11:30:00 AM PST', day_first=False),
 375             '20141126')
 376         self.assertEqual(
 377             unified_strdate('2/2/2015 6:47:40 PM', day_first=False),
 378             '20150202')
 379         self.assertEqual(unified_strdate('Feb 14th 2016 5:45PM'), '20160214')
 380         self.assertEqual(unified_strdate('25-09-2014'), '20140925')
 381         self.assertEqual(unified_strdate('27.02.2016 17:30'), '20160227')
 382         self.assertEqual(unified_strdate('UNKNOWN DATE FORMAT'), None)
 383         self.assertEqual(unified_strdate('Feb 7, 2016 at 6:35 pm'), '20160207')
 384         self.assertEqual(unified_strdate('July 15th, 2013'), '20130715')
 385         self.assertEqual(unified_strdate('September 1st, 2013'), '20130901')
 386         self.assertEqual(unified_strdate('Sep 2nd, 2013'), '20130902')
 387         self.assertEqual(unified_strdate('November 3rd, 2019'), '20191103')
 388         self.assertEqual(unified_strdate('October 23rd, 2005'), '20051023')
 389
 390     def test_unified_timestamps(self):
 391         self.assertEqual(unified_timestamp('December 21, 2010'), 1292889600)
 392         self.assertEqual(unified_timestamp('8/7/2009'), 1247011200)
 393         self.assertEqual(unified_timestamp('Dec 14, 2012'), 1355443200)
 394         self.assertEqual(unified_timestamp('2012/10/11 01:56:38 +0000'), 1349920598)
 395         self.assertEqual(unified_timestamp('1968 12 10'), -33436800)
 396         self.assertEqual(unified_timestamp('1968-12-10'), -33436800)
 397         self.assertEqual(unified_timestamp('28/01/2014 21:00:00 +0100'), 1390939200)
 398         self.assertEqual(
 399             unified_timestamp('11/26/2014 11:30:00 AM PST', day_first=False),
 400             1417001400)
 401         self.assertEqual(
 402             unified_timestamp('2/2/2015 6:47:40 PM', day_first=False),
 403             1422902860)
 404         self.assertEqual(unified_timestamp('Feb 14th 2016 5:45PM'), 1455471900)
 405         self.assertEqual(unified_timestamp('25-09-2014'), 1411603200)
 406         self.assertEqual(unified_timestamp('27.02.2016 17:30'), 1456594200)
 407         self.assertEqual(unified_timestamp('UNKNOWN DATE FORMAT'), None)
 408         self.assertEqual(unified_timestamp('May 16, 2016 11:15 PM'), 1463440500)
 409         self.assertEqual(unified_timestamp('Feb 7, 2016 at 6:35 pm'), 1454870100)
 410         self.assertEqual(unified_timestamp('2017-03-30T17:52:41Q'), 1490896361)
 411         self.assertEqual(unified_timestamp('Sep 11, 2013 | 5:49 AM'), 1378878540)
 412         self.assertEqual(unified_timestamp('December 15, 2017 at 7:49 am'), 1513324140)
 413         self.assertEqual(unified_timestamp('2018-03-14T08:32:43.1493874+00:00'), 1521016363)
 414
 415     def test_determine_ext(self):
 416         self.assertEqual(determine_ext('http://example.com/foo/bar.mp4/?download'), 'mp4')
 417         self.assertEqual(determine_ext('http://example.com/foo/bar/?download', None), None)
 418         self.assertEqual(determine_ext('http://example.com/foo/bar.nonext/?download', None), None)
 419         self.assertEqual(determine_ext('http://example.com/foo/bar/mp4?download', None), None)
 420         self.assertEqual(determine_ext('http://example.com/foo/bar.m3u8//?download'), 'm3u8')
 421         self.assertEqual(determine_ext('foobar', None), None)
 422
 423     def test_find_xpath_attr(self):
 424         testxml = '''<root>
 425             <node/>
 426             <node x="a"/>
 427             <node x="a" y="c" />
 428             <node x="b" y="d" />
 429             <node x="" />
 430         </root>'''
 431         doc = compat_etree_fromstring(testxml)
 432
 433         self.assertEqual(find_xpath_attr(doc, './/fourohfour', 'n'), None)
 434         self.assertEqual(find_xpath_attr(doc, './/fourohfour', 'n', 'v'), None)
 435         self.assertEqual(find_xpath_attr(doc, './/node', 'n'), None)
 436         self.assertEqual(find_xpath_attr(doc, './/node', 'n', 'v'), None)
 437         self.assertEqual(find_xpath_attr(doc, './/node', 'x'), doc[1])
 438         self.assertEqual(find_xpath_attr(doc, './/node', 'x', 'a'), doc[1])
 439         self.assertEqual(find_xpath_attr(doc, './/node', 'x', 'b'), doc[3])
 440         self.assertEqual(find_xpath_attr(doc, './/node', 'y'), doc[2])
 441         self.assertEqual(find_xpath_attr(doc, './/node', 'y', 'c'), doc[2])
 442         self.assertEqual(find_xpath_attr(doc, './/node', 'y', 'd'), doc[3])
 443         self.assertEqual(find_xpath_attr(doc, './/node', 'x', ''), doc[4])
 444
 445     def test_xpath_with_ns(self):
 446         testxml = '''<root xmlns:media="http://example.com/">
 447             <media:song>
 448                 <media:author>The Author</media:author>
 449                 <url>http://server.com/download.mp3</url>
 450             </media:song>
 451         </root>'''
 452         doc = compat_etree_fromstring(testxml)
 453         find = lambda p: doc.find(xpath_with_ns(p, {'media': 'http://example.com/'}))
 454         self.assertTrue(find('media:song') is not None)
 455         self.assertEqual(find('media:song/media:author').text, 'The Author')
 456         self.assertEqual(find('media:song/url').text, 'http://server.com/download.mp3')
 457
 458     def test_xpath_element(self):
 459         doc = xml.etree.ElementTree.Element('root')
 460         div = xml.etree.ElementTree.SubElement(doc, 'div')
 461         p = xml.etree.ElementTree.SubElement(div, 'p')
 462         p.text = 'Foo'
 463         self.assertEqual(xpath_element(doc, 'div/p'), p)
 464         self.assertEqual(xpath_element(doc, ['div/p']), p)
 465         self.assertEqual(xpath_element(doc, ['div/bar', 'div/p']), p)
 466         self.assertEqual(xpath_element(doc, 'div/bar', default='default'), 'default')
 467         self.assertEqual(xpath_element(doc, ['div/bar'], default='default'), 'default')
 468         self.assertTrue(xpath_element(doc, 'div/bar') is None)
 469         self.assertTrue(xpath_element(doc, ['div/bar']) is None)
 470         self.assertTrue(xpath_element(doc, ['div/bar'], 'div/baz') is None)
 471         self.assertRaises(ExtractorError, xpath_element, doc, 'div/bar', fatal=True)
 472         self.assertRaises(ExtractorError, xpath_element, doc, ['div/bar'], fatal=True)
 473         self.assertRaises(ExtractorError, xpath_element, doc, ['div/bar', 'div/baz'], fatal=True)
 474
 475     def test_xpath_text(self):
 476         testxml = '''<root>
 477             <div>
 478                 <p>Foo</p>
 479             </div>
 480         </root>'''
 481         doc = compat_etree_fromstring(testxml)
 482         self.assertEqual(xpath_text(doc, 'div/p'), 'Foo')
 483         self.assertEqual(xpath_text(doc, 'div/bar', default='default'), 'default')
 484         self.assertTrue(xpath_text(doc, 'div/bar') is None)
 485         self.assertRaises(ExtractorError, xpath_text, doc, 'div/bar', fatal=True)
 486
 487     def test_xpath_attr(self):
 488         testxml = '''<root>
 489             <div>
 490                 <p x="a">Foo</p>
 491             </div>
 492         </root>'''
 493         doc = compat_etree_fromstring(testxml)
 494         self.assertEqual(xpath_attr(doc, 'div/p', 'x'), 'a')
 495         self.assertEqual(xpath_attr(doc, 'div/bar', 'x'), None)
 496         self.assertEqual(xpath_attr(doc, 'div/p', 'y'), None)
 497         self.assertEqual(xpath_attr(doc, 'div/bar', 'x', default='default'), 'default')
 498         self.assertEqual(xpath_attr(doc, 'div/p', 'y', default='default'), 'default')
 499         self.assertRaises(ExtractorError, xpath_attr, doc, 'div/bar', 'x', fatal=True)
 500         self.assertRaises(ExtractorError, xpath_attr, doc, 'div/p', 'y', fatal=True)
 501
 502     def test_smuggle_url(self):
 503         data = {"ö": "ö", "abc": [3]}
 504         url = 'https://foo.bar/baz?x=y#a'
 505         smug_url = smuggle_url(url, data)
 506         unsmug_url, unsmug_data = unsmuggle_url(smug_url)
 507         self.assertEqual(url, unsmug_url)
 508         self.assertEqual(data, unsmug_data)
 509
 510         res_url, res_data = unsmuggle_url(url)
 511         self.assertEqual(res_url, url)
 512         self.assertEqual(res_data, None)
 513
 514         smug_url = smuggle_url(url, {'a': 'b'})
 515         smug_smug_url = smuggle_url(smug_url, {'c': 'd'})
 516         res_url, res_data = unsmuggle_url(smug_smug_url)
 517         self.assertEqual(res_url, url)
 518         self.assertEqual(res_data, {'a': 'b', 'c': 'd'})
 519
 520     def test_shell_quote(self):
 521         args = ['ffmpeg', '-i', encodeFilename('ñ€ß\'.mp4')]
 522         self.assertEqual(
 523             shell_quote(args),
 524             """ffmpeg -i 'ñ€ß'"'"'.mp4'""" if compat_os_name != 'nt' else '''ffmpeg -i "ñ€ß'.mp4"''')
 525
 526     def test_float_or_none(self):
 527         self.assertEqual(float_or_none('42.42'), 42.42)
 528         self.assertEqual(float_or_none('42'), 42.0)
 529         self.assertEqual(float_or_none(''), None)
 530         self.assertEqual(float_or_none(None), None)
 531         self.assertEqual(float_or_none([]), None)
 532         self.assertEqual(float_or_none(set()), None)
 533
 534     def test_int_or_none(self):
 535         self.assertEqual(int_or_none('42'), 42)
 536         self.assertEqual(int_or_none(''), None)
 537         self.assertEqual(int_or_none(None), None)
 538         self.assertEqual(int_or_none([]), None)
 539         self.assertEqual(int_or_none(set()), None)
 540
 541     def test_str_to_int(self):
 542         self.assertEqual(str_to_int('123,456'), 123456)
 543         self.assertEqual(str_to_int('123.456'), 123456)
 544         self.assertEqual(str_to_int(523), 523)
 545         self.assertEqual(str_to_int('noninteger'), None)
 546         self.assertEqual(str_to_int([]), None)
 547
 548     def test_url_basename(self):
 549         self.assertEqual(url_basename('http://foo.de/'), '')
 550         self.assertEqual(url_basename('http://foo.de/bar/baz'), 'baz')
 551         self.assertEqual(url_basename('http://foo.de/bar/baz?x=y'), 'baz')
 552         self.assertEqual(url_basename('http://foo.de/bar/baz#x=y'), 'baz')
 553         self.assertEqual(url_basename('http://foo.de/bar/baz/'), 'baz')
 554         self.assertEqual(
 555             url_basename('http://media.w3.org/2010/05/sintel/trailer.mp4'),
 556             'trailer.mp4')
 557
 558     def test_base_url(self):
 559         self.assertEqual(base_url('http://foo.de/'), 'http://foo.de/')
 560         self.assertEqual(base_url('http://foo.de/bar'), 'http://foo.de/')
 561         self.assertEqual(base_url('http://foo.de/bar/'), 'http://foo.de/bar/')
 562         self.assertEqual(base_url('http://foo.de/bar/baz'), 'http://foo.de/bar/')
 563         self.assertEqual(base_url('http://foo.de/bar/baz?x=z/x/c'), 'http://foo.de/bar/')
 564
 565     def test_urljoin(self):
 566         self.assertEqual(urljoin('http://foo.de/', '/a/b/c.txt'), 'http://foo.de/a/b/c.txt')
 567         self.assertEqual(urljoin(b'http://foo.de/', '/a/b/c.txt'), 'http://foo.de/a/b/c.txt')
 568         self.assertEqual(urljoin('http://foo.de/', b'/a/b/c.txt'), 'http://foo.de/a/b/c.txt')
 569         self.assertEqual(urljoin(b'http://foo.de/', b'/a/b/c.txt'), 'http://foo.de/a/b/c.txt')
 570         self.assertEqual(urljoin('//foo.de/', '/a/b/c.txt'), '//foo.de/a/b/c.txt')
 571         self.assertEqual(urljoin('http://foo.de/', 'a/b/c.txt'), 'http://foo.de/a/b/c.txt')
 572         self.assertEqual(urljoin('http://foo.de', '/a/b/c.txt'), 'http://foo.de/a/b/c.txt')
 573         self.assertEqual(urljoin('http://foo.de', 'a/b/c.txt'), 'http://foo.de/a/b/c.txt')
 574         self.assertEqual(urljoin('http://foo.de/', 'http://foo.de/a/b/c.txt'), 'http://foo.de/a/b/c.txt')
 575         self.assertEqual(urljoin('http://foo.de/', '//foo.de/a/b/c.txt'), '//foo.de/a/b/c.txt')
 576         self.assertEqual(urljoin(None, 'http://foo.de/a/b/c.txt'), 'http://foo.de/a/b/c.txt')
 577         self.assertEqual(urljoin(None, '//foo.de/a/b/c.txt'), '//foo.de/a/b/c.txt')
 578         self.assertEqual(urljoin('', 'http://foo.de/a/b/c.txt'), 'http://foo.de/a/b/c.txt')
 579         self.assertEqual(urljoin(['foobar'], 'http://foo.de/a/b/c.txt'), 'http://foo.de/a/b/c.txt')
 580         self.assertEqual(urljoin('http://foo.de/', None), None)
 581         self.assertEqual(urljoin('http://foo.de/', ''), None)
 582         self.assertEqual(urljoin('http://foo.de/', ['foobar']), None)
 583         self.assertEqual(urljoin('http://foo.de/a/b/c.txt', '.././../d.txt'), 'http://foo.de/d.txt')
 584         self.assertEqual(urljoin('http://foo.de/a/b/c.txt', 'rtmp://foo.de'), 'rtmp://foo.de')
 585         self.assertEqual(urljoin(None, 'rtmp://foo.de'), 'rtmp://foo.de')
 586
 587     def test_url_or_none(self):
 588         self.assertEqual(url_or_none(None), None)
 589         self.assertEqual(url_or_none(''), None)
 590         self.assertEqual(url_or_none('foo'), None)
 591         self.assertEqual(url_or_none('http://foo.de'), 'http://foo.de')
 592         self.assertEqual(url_or_none('https://foo.de'), 'https://foo.de')
 593         self.assertEqual(url_or_none('http$://foo.de'), None)
 594         self.assertEqual(url_or_none('http://foo.de'), 'http://foo.de')
 595         self.assertEqual(url_or_none('//foo.de'), '//foo.de')
 596         self.assertEqual(url_or_none('s3://foo.de'), None)
 597         self.assertEqual(url_or_none('rtmpte://foo.de'), 'rtmpte://foo.de')
 598         self.assertEqual(url_or_none('mms://foo.de'), 'mms://foo.de')
 599         self.assertEqual(url_or_none('rtspu://foo.de'), 'rtspu://foo.de')
 600         self.assertEqual(url_or_none('ftps://foo.de'), 'ftps://foo.de')
 601
 602     def test_parse_age_limit(self):
 603         self.assertEqual(parse_age_limit(None), None)
 604         self.assertEqual(parse_age_limit(False), None)
 605         self.assertEqual(parse_age_limit('invalid'), None)
 606         self.assertEqual(parse_age_limit(0), 0)
 607         self.assertEqual(parse_age_limit(18), 18)
 608         self.assertEqual(parse_age_limit(21), 21)
 609         self.assertEqual(parse_age_limit(22), None)
 610         self.assertEqual(parse_age_limit('18'), 18)
 611         self.assertEqual(parse_age_limit('18+'), 18)
 612         self.assertEqual(parse_age_limit('PG-13'), 13)
 613         self.assertEqual(parse_age_limit('TV-14'), 14)
 614         self.assertEqual(parse_age_limit('TV-MA'), 17)
 615         self.assertEqual(parse_age_limit('TV14'), 14)
 616         self.assertEqual(parse_age_limit('TV_G'), 0)
 617
 618     def test_parse_duration(self):
 619         self.assertEqual(parse_duration(None), None)
 620         self.assertEqual(parse_duration(False), None)
 621         self.assertEqual(parse_duration('invalid'), None)
 622         self.assertEqual(parse_duration('1'), 1)
 623         self.assertEqual(parse_duration('1337:12'), 80232)
 624         self.assertEqual(parse_duration('9:12:43'), 33163)
 625         self.assertEqual(parse_duration('12:00'), 720)
 626         self.assertEqual(parse_duration('00:01:01'), 61)
 627         self.assertEqual(parse_duration('x:y'), None)
 628         self.assertEqual(parse_duration('3h11m53s'), 11513)
 629         self.assertEqual(parse_duration('3h 11m 53s'), 11513)
 630         self.assertEqual(parse_duration('3 hours 11 minutes 53 seconds'), 11513)
 631         self.assertEqual(parse_duration('3 hours 11 mins 53 secs'), 11513)
 632         self.assertEqual(parse_duration('3 hours, 11 minutes, 53 seconds'), 11513)
 633         self.assertEqual(parse_duration('3 hours, 11 mins, 53 secs'), 11513)
 634         self.assertEqual(parse_duration('62m45s'), 3765)
 635         self.assertEqual(parse_duration('6m59s'), 419)
 636         self.assertEqual(parse_duration('49s'), 49)
 637         self.assertEqual(parse_duration('0h0m0s'), 0)
 638         self.assertEqual(parse_duration('0m0s'), 0)
 639         self.assertEqual(parse_duration('0s'), 0)
 640         self.assertEqual(parse_duration('01:02:03.05'), 3723.05)
 641         self.assertEqual(parse_duration('T30M38S'), 1838)
 642         self.assertEqual(parse_duration('5 s'), 5)
 643         self.assertEqual(parse_duration('3 min'), 180)
 644         self.assertEqual(parse_duration('2.5 hours'), 9000)
 645         self.assertEqual(parse_duration('02:03:04'), 7384)
 646         self.assertEqual(parse_duration('01:02:03:04'), 93784)
 647         self.assertEqual(parse_duration('1 hour 3 minutes'), 3780)
 648         self.assertEqual(parse_duration('87 Min.'), 5220)
 649         self.assertEqual(parse_duration('PT1H0.040S'), 3600.04)
 650         self.assertEqual(parse_duration('PT00H03M30SZ'), 210)
 651         self.assertEqual(parse_duration('P0Y0M0DT0H4M20.880S'), 260.88)
 652         self.assertEqual(parse_duration('01:02:03:050'), 3723.05)
 653         self.assertEqual(parse_duration('103:050'), 103.05)
 654
 655     def test_fix_xml_ampersands(self):
 656         self.assertEqual(
 657             fix_xml_ampersands('"&x=y&z=a'), '"&amp;x=y&amp;z=a')
 658         self.assertEqual(
 659             fix_xml_ampersands('"&amp;x=y&wrong;&z=a'),
 660             '"&amp;x=y&amp;wrong;&amp;z=a')
 661         self.assertEqual(
 662             fix_xml_ampersands('&amp;&apos;&gt;&lt;&quot;'),
 663             '&amp;&apos;&gt;&lt;&quot;')
 664         self.assertEqual(
 665             fix_xml_ampersands('&#1234;&#x1abC;'), '&#1234;&#x1abC;')
 666         self.assertEqual(fix_xml_ampersands('&#&#'), '&amp;#&amp;#')
 667
 668     def test_paged_list(self):
 669         def testPL(size, pagesize, sliceargs, expected):
 670             def get_page(pagenum):
 671                 firstid = pagenum * pagesize
 672                 upto = min(size, pagenum * pagesize + pagesize)
 673                 yield from range(firstid, upto)
 674
 675             pl = OnDemandPagedList(get_page, pagesize)
 676             got = pl.getslice(*sliceargs)
 677             self.assertEqual(got, expected)
 678
 679             iapl = InAdvancePagedList(get_page, size // pagesize + 1, pagesize)
 680             got = iapl.getslice(*sliceargs)
 681             self.assertEqual(got, expected)
 682
 683         testPL(5, 2, (), [0, 1, 2, 3, 4])
 684         testPL(5, 2, (1,), [1, 2, 3, 4])
 685         testPL(5, 2, (2,), [2, 3, 4])
 686         testPL(5, 2, (4,), [4])
 687         testPL(5, 2, (0, 3), [0, 1, 2])
 688         testPL(5, 2, (1, 4), [1, 2, 3])
 689         testPL(5, 2, (2, 99), [2, 3, 4])
 690         testPL(5, 2, (20, 99), [])
 691
 692     def test_read_batch_urls(self):
 693         f = io.StringIO('''\xef\xbb\xbf foo
 694             bar\r
 695             baz
 696             # More after this line\r
 697             ; or after this
 698             bam''')
 699         self.assertEqual(read_batch_urls(f), ['foo', 'bar', 'baz', 'bam'])
 700
 701     def test_urlencode_postdata(self):
 702         data = urlencode_postdata({'username': 'foo@bar.com', 'password': '1234'})
 703         self.assertTrue(isinstance(data, bytes))
 704
 705     def test_update_url_query(self):
 706         self.assertEqual(parse_qs(update_url_query(
 707             'http://example.com/path', {'quality': ['HD'], 'format': ['mp4']})),
 708             parse_qs('http://example.com/path?quality=HD&format=mp4'))
 709         self.assertEqual(parse_qs(update_url_query(
 710             'http://example.com/path', {'system': ['LINUX', 'WINDOWS']})),
 711             parse_qs('http://example.com/path?system=LINUX&system=WINDOWS'))
 712         self.assertEqual(parse_qs(update_url_query(
 713             'http://example.com/path', {'fields': 'id,formats,subtitles'})),
 714             parse_qs('http://example.com/path?fields=id,formats,subtitles'))
 715         self.assertEqual(parse_qs(update_url_query(
 716             'http://example.com/path', {'fields': ('id,formats,subtitles', 'thumbnails')})),
 717             parse_qs('http://example.com/path?fields=id,formats,subtitles&fields=thumbnails'))
 718         self.assertEqual(parse_qs(update_url_query(
 719             'http://example.com/path?manifest=f4m', {'manifest': []})),
 720             parse_qs('http://example.com/path'))
 721         self.assertEqual(parse_qs(update_url_query(
 722             'http://example.com/path?system=LINUX&system=WINDOWS', {'system': 'LINUX'})),
 723             parse_qs('http://example.com/path?system=LINUX'))
 724         self.assertEqual(parse_qs(update_url_query(
 725             'http://example.com/path', {'fields': b'id,formats,subtitles'})),
 726             parse_qs('http://example.com/path?fields=id,formats,subtitles'))
 727         self.assertEqual(parse_qs(update_url_query(
 728             'http://example.com/path', {'width': 1080, 'height': 720})),
 729             parse_qs('http://example.com/path?width=1080&height=720'))
 730         self.assertEqual(parse_qs(update_url_query(
 731             'http://example.com/path', {'bitrate': 5020.43})),
 732             parse_qs('http://example.com/path?bitrate=5020.43'))
 733         self.assertEqual(parse_qs(update_url_query(
 734             'http://example.com/path', {'test': '第二行тест'})),
 735             parse_qs('http://example.com/path?test=%E7%AC%AC%E4%BA%8C%E8%A1%8C%D1%82%D0%B5%D1%81%D1%82'))
 736
 737     def test_multipart_encode(self):
 738         self.assertEqual(
 739             multipart_encode({b'field': b'value'}, boundary='AAAAAA')[0],
 740             b'--AAAAAA\r\nContent-Disposition: form-data; name="field"\r\n\r\nvalue\r\n--AAAAAA--\r\n')
 741         self.assertEqual(
 742             multipart_encode({'欄位'.encode(): '值'.encode()}, boundary='AAAAAA')[0],
 743             b'--AAAAAA\r\nContent-Disposition: form-data; name="\xe6\xac\x84\xe4\xbd\x8d"\r\n\r\n\xe5\x80\xbc\r\n--AAAAAA--\r\n')
 744         self.assertRaises(
 745             ValueError, multipart_encode, {b'field': b'value'}, boundary='value')
 746
 747     def test_dict_get(self):
 748         FALSE_VALUES = {
 749             'none': None,
 750             'false': False,
 751             'zero': 0,
 752             'empty_string': '',
 753             'empty_list': [],
 754         }
 755         d = FALSE_VALUES.copy()
 756         d['a'] = 42
 757         self.assertEqual(dict_get(d, 'a'), 42)
 758         self.assertEqual(dict_get(d, 'b'), None)
 759         self.assertEqual(dict_get(d, 'b', 42), 42)
 760         self.assertEqual(dict_get(d, ('a', )), 42)
 761         self.assertEqual(dict_get(d, ('b', 'a', )), 42)
 762         self.assertEqual(dict_get(d, ('b', 'c', 'a', 'd', )), 42)
 763         self.assertEqual(dict_get(d, ('b', 'c', )), None)
 764         self.assertEqual(dict_get(d, ('b', 'c', ), 42), 42)
 765         for key, false_value in FALSE_VALUES.items():
 766             self.assertEqual(dict_get(d, ('b', 'c', key, )), None)
 767             self.assertEqual(dict_get(d, ('b', 'c', key, ), skip_false_values=False), false_value)
 768
 769     def test_merge_dicts(self):
 770         self.assertEqual(merge_dicts({'a': 1}, {'b': 2}), {'a': 1, 'b': 2})
 771         self.assertEqual(merge_dicts({'a': 1}, {'a': 2}), {'a': 1})
 772         self.assertEqual(merge_dicts({'a': 1}, {'a': None}), {'a': 1})
 773         self.assertEqual(merge_dicts({'a': 1}, {'a': ''}), {'a': 1})
 774         self.assertEqual(merge_dicts({'a': 1}, {}), {'a': 1})
 775         self.assertEqual(merge_dicts({'a': None}, {'a': 1}), {'a': 1})
 776         self.assertEqual(merge_dicts({'a': ''}, {'a': 1}), {'a': ''})
 777         self.assertEqual(merge_dicts({'a': ''}, {'a': 'abc'}), {'a': 'abc'})
 778         self.assertEqual(merge_dicts({'a': None}, {'a': ''}, {'a': 'abc'}), {'a': 'abc'})
 779
 780     def test_encode_compat_str(self):
 781         self.assertEqual(encode_compat_str(b'\xd1\x82\xd0\xb5\xd1\x81\xd1\x82', 'utf-8'), 'тест')
 782         self.assertEqual(encode_compat_str('тест', 'utf-8'), 'тест')
 783
 784     def test_parse_iso8601(self):
 785         self.assertEqual(parse_iso8601('2014-03-23T23:04:26+0100'), 1395612266)
 786         self.assertEqual(parse_iso8601('2014-03-23T22:04:26+0000'), 1395612266)
 787         self.assertEqual(parse_iso8601('2014-03-23T22:04:26Z'), 1395612266)
 788         self.assertEqual(parse_iso8601('2014-03-23T22:04:26.1234Z'), 1395612266)
 789         self.assertEqual(parse_iso8601('2015-09-29T08:27:31.727'), 1443515251)
 790         self.assertEqual(parse_iso8601('2015-09-29T08-27-31.727'), None)
 791
 792     def test_strip_jsonp(self):
 793         stripped = strip_jsonp('cb ([ {"id":"532cb",\n\n\n"x":\n3}\n]\n);')
 794         d = json.loads(stripped)
 795         self.assertEqual(d, [{"id": "532cb", "x": 3}])
 796
 797         stripped = strip_jsonp('parseMetadata({"STATUS":"OK"})\n\n\n//epc')
 798         d = json.loads(stripped)
 799         self.assertEqual(d, {'STATUS': 'OK'})
 800
 801         stripped = strip_jsonp('ps.embedHandler({"status": "success"});')
 802         d = json.loads(stripped)
 803         self.assertEqual(d, {'status': 'success'})
 804
 805         stripped = strip_jsonp('window.cb && window.cb({"status": "success"});')
 806         d = json.loads(stripped)
 807         self.assertEqual(d, {'status': 'success'})
 808
 809         stripped = strip_jsonp('window.cb && cb({"status": "success"});')
 810         d = json.loads(stripped)
 811         self.assertEqual(d, {'status': 'success'})
 812
 813         stripped = strip_jsonp('({"status": "success"});')
 814         d = json.loads(stripped)
 815         self.assertEqual(d, {'status': 'success'})
 816
 817     def test_strip_or_none(self):
 818         self.assertEqual(strip_or_none(' abc'), 'abc')
 819         self.assertEqual(strip_or_none('abc '), 'abc')
 820         self.assertEqual(strip_or_none(' abc '), 'abc')
 821         self.assertEqual(strip_or_none('\tabc\t'), 'abc')
 822         self.assertEqual(strip_or_none('\n\tabc\n\t'), 'abc')
 823         self.assertEqual(strip_or_none('abc'), 'abc')
 824         self.assertEqual(strip_or_none(''), '')
 825         self.assertEqual(strip_or_none(None), None)
 826         self.assertEqual(strip_or_none(42), None)
 827         self.assertEqual(strip_or_none([]), None)
 828
 829     def test_uppercase_escape(self):
 830         self.assertEqual(uppercase_escape('aä'), 'aä')
 831         self.assertEqual(uppercase_escape('\\U0001d550'), '𝕐')
 832
 833     def test_lowercase_escape(self):
 834         self.assertEqual(lowercase_escape('aä'), 'aä')
 835         self.assertEqual(lowercase_escape('\\u0026'), '&')
 836
 837     def test_limit_length(self):
 838         self.assertEqual(limit_length(None, 12), None)
 839         self.assertEqual(limit_length('foo', 12), 'foo')
 840         self.assertTrue(
 841             limit_length('foo bar baz asd', 12).startswith('foo bar'))
 842         self.assertTrue('...' in limit_length('foo bar baz asd', 12))
 843
 844     def test_mimetype2ext(self):
 845         self.assertEqual(mimetype2ext(None), None)
 846         self.assertEqual(mimetype2ext('video/x-flv'), 'flv')
 847         self.assertEqual(mimetype2ext('application/x-mpegURL'), 'm3u8')
 848         self.assertEqual(mimetype2ext('text/vtt'), 'vtt')
 849         self.assertEqual(mimetype2ext('text/vtt;charset=utf-8'), 'vtt')
 850         self.assertEqual(mimetype2ext('text/html; charset=utf-8'), 'html')
 851         self.assertEqual(mimetype2ext('audio/x-wav'), 'wav')
 852         self.assertEqual(mimetype2ext('audio/x-wav;codec=pcm'), 'wav')
 853
 854     def test_month_by_name(self):
 855         self.assertEqual(month_by_name(None), None)
 856         self.assertEqual(month_by_name('December', 'en'), 12)
 857         self.assertEqual(month_by_name('décembre', 'fr'), 12)
 858         self.assertEqual(month_by_name('December'), 12)
 859         self.assertEqual(month_by_name('décembre'), None)
 860         self.assertEqual(month_by_name('Unknown', 'unknown'), None)
 861
 862     def test_parse_codecs(self):
 863         self.assertEqual(parse_codecs(''), {})
 864         self.assertEqual(parse_codecs('avc1.77.30, mp4a.40.2'), {
 865             'vcodec': 'avc1.77.30',
 866             'acodec': 'mp4a.40.2',
 867             'dynamic_range': None,
 868         })
 869         self.assertEqual(parse_codecs('mp4a.40.2'), {
 870             'vcodec': 'none',
 871             'acodec': 'mp4a.40.2',
 872             'dynamic_range': None,
 873         })
 874         self.assertEqual(parse_codecs('mp4a.40.5,avc1.42001e'), {
 875             'vcodec': 'avc1.42001e',
 876             'acodec': 'mp4a.40.5',
 877             'dynamic_range': None,
 878         })
 879         self.assertEqual(parse_codecs('avc3.640028'), {
 880             'vcodec': 'avc3.640028',
 881             'acodec': 'none',
 882             'dynamic_range': None,
 883         })
 884         self.assertEqual(parse_codecs(', h264,,newcodec,aac'), {
 885             'vcodec': 'h264',
 886             'acodec': 'aac',
 887             'dynamic_range': None,
 888         })
 889         self.assertEqual(parse_codecs('av01.0.05M.08'), {
 890             'vcodec': 'av01.0.05M.08',
 891             'acodec': 'none',
 892             'dynamic_range': None,
 893         })
 894         self.assertEqual(parse_codecs('vp9.2'), {
 895             'vcodec': 'vp9.2',
 896             'acodec': 'none',
 897             'dynamic_range': 'HDR10',
 898         })
 899         self.assertEqual(parse_codecs('av01.0.12M.10.0.110.09.16.09.0'), {
 900             'vcodec': 'av01.0.12M.10.0.110.09.16.09.0',
 901             'acodec': 'none',
 902             'dynamic_range': 'HDR10',
 903         })
 904         self.assertEqual(parse_codecs('dvhe'), {
 905             'vcodec': 'dvhe',
 906             'acodec': 'none',
 907             'dynamic_range': 'DV',
 908         })
 909         self.assertEqual(parse_codecs('theora, vorbis'), {
 910             'vcodec': 'theora',
 911             'acodec': 'vorbis',
 912             'dynamic_range': None,
 913         })
 914         self.assertEqual(parse_codecs('unknownvcodec, unknownacodec'), {
 915             'vcodec': 'unknownvcodec',
 916             'acodec': 'unknownacodec',
 917         })
 918         self.assertEqual(parse_codecs('unknown'), {})
 919
 920     def test_escape_rfc3986(self):
 921         reserved = "!*'();:@&=+$,/?#[]"
 922         unreserved = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_.~'
 923         self.assertEqual(escape_rfc3986(reserved), reserved)
 924         self.assertEqual(escape_rfc3986(unreserved), unreserved)
 925         self.assertEqual(escape_rfc3986('тест'), '%D1%82%D0%B5%D1%81%D1%82')
 926         self.assertEqual(escape_rfc3986('%D1%82%D0%B5%D1%81%D1%82'), '%D1%82%D0%B5%D1%81%D1%82')
 927         self.assertEqual(escape_rfc3986('foo bar'), 'foo%20bar')
 928         self.assertEqual(escape_rfc3986('foo%20bar'), 'foo%20bar')
 929
 930     def test_escape_url(self):
 931         self.assertEqual(
 932             escape_url('http://wowza.imust.org/srv/vod/telemb/new/UPLOAD/UPLOAD/20224_IncendieHavré_FD.mp4'),
 933             'http://wowza.imust.org/srv/vod/telemb/new/UPLOAD/UPLOAD/20224_IncendieHavre%CC%81_FD.mp4'
 934         )
 935         self.assertEqual(
 936             escape_url('http://www.ardmediathek.de/tv/Sturm-der-Liebe/Folge-2036-Zu-Mann-und-Frau-erklärt/Das-Erste/Video?documentId=22673108&bcastId=5290'),
 937             'http://www.ardmediathek.de/tv/Sturm-der-Liebe/Folge-2036-Zu-Mann-und-Frau-erkl%C3%A4rt/Das-Erste/Video?documentId=22673108&bcastId=5290'
 938         )
 939         self.assertEqual(
 940             escape_url('http://тест.рф/фрагмент'),
 941             'http://xn--e1aybc.xn--p1ai/%D1%84%D1%80%D0%B0%D0%B3%D0%BC%D0%B5%D0%BD%D1%82'
 942         )
 943         self.assertEqual(
 944             escape_url('http://тест.рф/абв?абв=абв#абв'),
 945             'http://xn--e1aybc.xn--p1ai/%D0%B0%D0%B1%D0%B2?%D0%B0%D0%B1%D0%B2=%D0%B0%D0%B1%D0%B2#%D0%B0%D0%B1%D0%B2'
 946         )
 947         self.assertEqual(escape_url('http://vimeo.com/56015672#at=0'), 'http://vimeo.com/56015672#at=0')
 948
 949     def test_js_to_json_realworld(self):
 950         inp = '''{
 951             'clip':{'provider':'pseudo'}
 952         }'''
 953         self.assertEqual(js_to_json(inp), '''{
 954             "clip":{"provider":"pseudo"}
 955         }''')
 956         json.loads(js_to_json(inp))
 957
 958         inp = '''{
 959             'playlist':[{'controls':{'all':null}}]
 960         }'''
 961         self.assertEqual(js_to_json(inp), '''{
 962             "playlist":[{"controls":{"all":null}}]
 963         }''')
 964
 965         inp = '''"The CW\\'s \\'Crazy Ex-Girlfriend\\'"'''
 966         self.assertEqual(js_to_json(inp), '''"The CW's 'Crazy Ex-Girlfriend'"''')
 967
 968         inp = '"SAND Number: SAND 2013-7800P\\nPresenter: Tom Russo\\nHabanero Software Training - Xyce Software\\nXyce, Sandia\\u0027s"'
 969         json_code = js_to_json(inp)
 970         self.assertEqual(json.loads(json_code), json.loads(inp))
 971
 972         inp = '''{
 973             0:{src:'skipped', type: 'application/dash+xml'},
 974             1:{src:'skipped', type: 'application/vnd.apple.mpegURL'},
 975         }'''
 976         self.assertEqual(js_to_json(inp), '''{
 977             "0":{"src":"skipped", "type": "application/dash+xml"},
 978             "1":{"src":"skipped", "type": "application/vnd.apple.mpegURL"}
 979         }''')
 980
 981         inp = '''{"foo":101}'''
 982         self.assertEqual(js_to_json(inp), '''{"foo":101}''')
 983
 984         inp = '''{"duration": "00:01:07"}'''
 985         self.assertEqual(js_to_json(inp), '''{"duration": "00:01:07"}''')
 986
 987         inp = '''{segments: [{"offset":-3.885780586188048e-16,"duration":39.75000000000001}]}'''
 988         self.assertEqual(js_to_json(inp), '''{"segments": [{"offset":-3.885780586188048e-16,"duration":39.75000000000001}]}''')
 989
 990     def test_js_to_json_edgecases(self):
 991         on = js_to_json("{abc_def:'1\\'\\\\2\\\\\\'3\"4'}")
 992         self.assertEqual(json.loads(on), {"abc_def": "1'\\2\\'3\"4"})
 993
 994         on = js_to_json('{"abc": true}')
 995         self.assertEqual(json.loads(on), {'abc': True})
 996
 997         # Ignore JavaScript code as well
 998         on = js_to_json('''{
 999             "x": 1,
1000             y: "a",
1001             z: some.code
1002         }''')
1003         d = json.loads(on)
1004         self.assertEqual(d['x'], 1)
1005         self.assertEqual(d['y'], 'a')
1006
1007         # Just drop ! prefix for now though this results in a wrong value
1008         on = js_to_json('''{
1009             a: !0,
1010             b: !1,
1011             c: !!0,
1012             d: !!42.42,
1013             e: !!![],
1014             f: !"abc",
1015             g: !"",
1016             !42: 42
1017         }''')
1018         self.assertEqual(json.loads(on), {
1019             'a': 0,
1020             'b': 1,
1021             'c': 0,
1022             'd': 42.42,
1023             'e': [],
1024             'f': "abc",
1025             'g': "",
1026             '42': 42
1027         })
1028
1029         on = js_to_json('["abc", "def",]')
1030         self.assertEqual(json.loads(on), ['abc', 'def'])
1031
1032         on = js_to_json('[/*comment\n*/"abc"/*comment\n*/,/*comment\n*/"def",/*comment\n*/]')
1033         self.assertEqual(json.loads(on), ['abc', 'def'])
1034
1035         on = js_to_json('[//comment\n"abc" //comment\n,//comment\n"def",//comment\n]')
1036         self.assertEqual(json.loads(on), ['abc', 'def'])
1037
1038         on = js_to_json('{"abc": "def",}')
1039         self.assertEqual(json.loads(on), {'abc': 'def'})
1040
1041         on = js_to_json('{/*comment\n*/"abc"/*comment\n*/:/*comment\n*/"def"/*comment\n*/,/*comment\n*/}')
1042         self.assertEqual(json.loads(on), {'abc': 'def'})
1043
1044         on = js_to_json('{ 0: /* " \n */ ",]" , }')
1045         self.assertEqual(json.loads(on), {'0': ',]'})
1046
1047         on = js_to_json('{ /*comment\n*/0/*comment\n*/: /* " \n */ ",]" , }')
1048         self.assertEqual(json.loads(on), {'0': ',]'})
1049
1050         on = js_to_json('{ 0: // comment\n1 }')
1051         self.assertEqual(json.loads(on), {'0': 1})
1052
1053         on = js_to_json(r'["<p>x<\/p>"]')
1054         self.assertEqual(json.loads(on), ['<p>x</p>'])
1055
1056         on = js_to_json(r'["\xaa"]')
1057         self.assertEqual(json.loads(on), ['\u00aa'])
1058
1059         on = js_to_json("['a\\\nb']")
1060         self.assertEqual(json.loads(on), ['ab'])
1061
1062         on = js_to_json("/*comment\n*/[/*comment\n*/'a\\\nb'/*comment\n*/]/*comment\n*/")
1063         self.assertEqual(json.loads(on), ['ab'])
1064
1065         on = js_to_json('{0xff:0xff}')
1066         self.assertEqual(json.loads(on), {'255': 255})
1067
1068         on = js_to_json('{/*comment\n*/0xff/*comment\n*/:/*comment\n*/0xff/*comment\n*/}')
1069         self.assertEqual(json.loads(on), {'255': 255})
1070
1071         on = js_to_json('{077:077}')
1072         self.assertEqual(json.loads(on), {'63': 63})
1073
1074         on = js_to_json('{/*comment\n*/077/*comment\n*/:/*comment\n*/077/*comment\n*/}')
1075         self.assertEqual(json.loads(on), {'63': 63})
1076
1077         on = js_to_json('{42:42}')
1078         self.assertEqual(json.loads(on), {'42': 42})
1079
1080         on = js_to_json('{/*comment\n*/42/*comment\n*/:/*comment\n*/42/*comment\n*/}')
1081         self.assertEqual(json.loads(on), {'42': 42})
1082
1083         on = js_to_json('{42:4.2e1}')
1084         self.assertEqual(json.loads(on), {'42': 42.0})
1085
1086         on = js_to_json('{ "0x40": "0x40" }')
1087         self.assertEqual(json.loads(on), {'0x40': '0x40'})
1088
1089         on = js_to_json('{ "040": "040" }')
1090         self.assertEqual(json.loads(on), {'040': '040'})
1091
1092         on = js_to_json('[1,//{},\n2]')
1093         self.assertEqual(json.loads(on), [1, 2])
1094
1095     def test_js_to_json_malformed(self):
1096         self.assertEqual(js_to_json('42a1'), '42"a1"')
1097         self.assertEqual(js_to_json('42a-1'), '42"a"-1')
1098
1099     def test_extract_attributes(self):
1100         self.assertEqual(extract_attributes('<e x="y">'), {'x': 'y'})
1101         self.assertEqual(extract_attributes("<e x='y'>"), {'x': 'y'})
1102         self.assertEqual(extract_attributes('<e x=y>'), {'x': 'y'})
1103         self.assertEqual(extract_attributes('<e x="a \'b\' c">'), {'x': "a 'b' c"})
1104         self.assertEqual(extract_attributes('<e x=\'a "b" c\'>'), {'x': 'a "b" c'})
1105         self.assertEqual(extract_attributes('<e x="&#121;">'), {'x': 'y'})
1106         self.assertEqual(extract_attributes('<e x="&#x79;">'), {'x': 'y'})
1107         self.assertEqual(extract_attributes('<e x="&amp;">'), {'x': '&'})  # XML
1108         self.assertEqual(extract_attributes('<e x="&quot;">'), {'x': '"'})
1109         self.assertEqual(extract_attributes('<e x="&pound;">'), {'x': '£'})  # HTML 3.2
1110         self.assertEqual(extract_attributes('<e x="&lambda;">'), {'x': 'λ'})  # HTML 4.0
1111         self.assertEqual(extract_attributes('<e x="&foo">'), {'x': '&foo'})
1112         self.assertEqual(extract_attributes('<e x="\'">'), {'x': "'"})
1113         self.assertEqual(extract_attributes('<e x=\'"\'>'), {'x': '"'})
1114         self.assertEqual(extract_attributes('<e x >'), {'x': None})
1115         self.assertEqual(extract_attributes('<e x=y a>'), {'x': 'y', 'a': None})
1116         self.assertEqual(extract_attributes('<e x= y>'), {'x': 'y'})
1117         self.assertEqual(extract_attributes('<e x=1 y=2 x=3>'), {'y': '2', 'x': '3'})
1118         self.assertEqual(extract_attributes('<e \nx=\ny\n>'), {'x': 'y'})
1119         self.assertEqual(extract_attributes('<e \nx=\n"y"\n>'), {'x': 'y'})
1120         self.assertEqual(extract_attributes("<e \nx=\n'y'\n>"), {'x': 'y'})
1121         self.assertEqual(extract_attributes('<e \nx="\ny\n">'), {'x': '\ny\n'})
1122         self.assertEqual(extract_attributes('<e CAPS=x>'), {'caps': 'x'})  # Names lowercased
1123         self.assertEqual(extract_attributes('<e x=1 X=2>'), {'x': '2'})
1124         self.assertEqual(extract_attributes('<e X=1 x=2>'), {'x': '2'})
1125         self.assertEqual(extract_attributes('<e _:funny-name1=1>'), {'_:funny-name1': '1'})
1126         self.assertEqual(extract_attributes('<e x="Fáilte 世界 \U0001f600">'), {'x': 'Fáilte 世界 \U0001f600'})
1127         self.assertEqual(extract_attributes('<e x="décompose&#769;">'), {'x': 'décompose\u0301'})
1128         # "Narrow" Python builds don't support unicode code points outside BMP.
1129         try:
1130             chr(0x10000)
1131             supports_outside_bmp = True
1132         except ValueError:
1133             supports_outside_bmp = False
1134         if supports_outside_bmp:
1135             self.assertEqual(extract_attributes('<e x="Smile &#128512;!">'), {'x': 'Smile \U0001f600!'})
1136         # Malformed HTML should not break attributes extraction on older Python
1137         self.assertEqual(extract_attributes('<mal"formed/>'), {})
1138
1139     def test_clean_html(self):
1140         self.assertEqual(clean_html('a:\nb'), 'a: b')
1141         self.assertEqual(clean_html('a:\n   "b"'), 'a: "b"')
1142         self.assertEqual(clean_html('a<br>\xa0b'), 'a\nb')
1143
1144     def test_intlist_to_bytes(self):
1145         self.assertEqual(
1146             intlist_to_bytes([0, 1, 127, 128, 255]),
1147             b'\x00\x01\x7f\x80\xff')
1148
1149     def test_args_to_str(self):
1150         self.assertEqual(
1151             args_to_str(['foo', 'ba/r', '-baz', '2 be', '']),
1152             'foo ba/r -baz \'2 be\' \'\'' if compat_os_name != 'nt' else 'foo ba/r -baz "2 be" ""'
1153         )
1154
1155     def test_parse_filesize(self):
1156         self.assertEqual(parse_filesize(None), None)
1157         self.assertEqual(parse_filesize(''), None)
1158         self.assertEqual(parse_filesize('91 B'), 91)
1159         self.assertEqual(parse_filesize('foobar'), None)
1160         self.assertEqual(parse_filesize('2 MiB'), 2097152)
1161         self.assertEqual(parse_filesize('5 GB'), 5000000000)
1162         self.assertEqual(parse_filesize('1.2Tb'), 1200000000000)
1163         self.assertEqual(parse_filesize('1.2tb'), 1200000000000)
1164         self.assertEqual(parse_filesize('1,24 KB'), 1240)
1165         self.assertEqual(parse_filesize('1,24 kb'), 1240)
1166         self.assertEqual(parse_filesize('8.5 megabytes'), 8500000)
1167
1168     def test_parse_count(self):
1169         self.assertEqual(parse_count(None), None)
1170         self.assertEqual(parse_count(''), None)
1171         self.assertEqual(parse_count('0'), 0)
1172         self.assertEqual(parse_count('1000'), 1000)
1173         self.assertEqual(parse_count('1.000'), 1000)
1174         self.assertEqual(parse_count('1.1k'), 1100)
1175         self.assertEqual(parse_count('1.1 k'), 1100)
1176         self.assertEqual(parse_count('1,1 k'), 1100)
1177         self.assertEqual(parse_count('1.1kk'), 1100000)
1178         self.assertEqual(parse_count('1.1kk '), 1100000)
1179         self.assertEqual(parse_count('1,1kk'), 1100000)
1180         self.assertEqual(parse_count('100 views'), 100)
1181         self.assertEqual(parse_count('1,100 views'), 1100)
1182         self.assertEqual(parse_count('1.1kk views'), 1100000)
1183         self.assertEqual(parse_count('10M views'), 10000000)
1184         self.assertEqual(parse_count('has 10M views'), 10000000)
1185
1186     def test_parse_resolution(self):
1187         self.assertEqual(parse_resolution(None), {})
1188         self.assertEqual(parse_resolution(''), {})
1189         self.assertEqual(parse_resolution(' 1920x1080'), {'width': 1920, 'height': 1080})
1190         self.assertEqual(parse_resolution('1920×1080 '), {'width': 1920, 'height': 1080})
1191         self.assertEqual(parse_resolution('1920 x 1080'), {'width': 1920, 'height': 1080})
1192         self.assertEqual(parse_resolution('720p'), {'height': 720})
1193         self.assertEqual(parse_resolution('4k'), {'height': 2160})
1194         self.assertEqual(parse_resolution('8K'), {'height': 4320})
1195         self.assertEqual(parse_resolution('pre_1920x1080_post'), {'width': 1920, 'height': 1080})
1196         self.assertEqual(parse_resolution('ep1x2'), {})
1197         self.assertEqual(parse_resolution('1920, 1080'), {'width': 1920, 'height': 1080})
1198
1199     def test_parse_bitrate(self):
1200         self.assertEqual(parse_bitrate(None), None)
1201         self.assertEqual(parse_bitrate(''), None)
1202         self.assertEqual(parse_bitrate('300kbps'), 300)
1203         self.assertEqual(parse_bitrate('1500kbps'), 1500)
1204         self.assertEqual(parse_bitrate('300 kbps'), 300)
1205
1206     def test_version_tuple(self):
1207         self.assertEqual(version_tuple('1'), (1,))
1208         self.assertEqual(version_tuple('10.23.344'), (10, 23, 344))
1209         self.assertEqual(version_tuple('10.1-6'), (10, 1, 6))  # avconv style
1210
1211     def test_detect_exe_version(self):
1212         self.assertEqual(detect_exe_version('''ffmpeg version 1.2.1
1213 built on May 27 2013 08:37:26 with gcc 4.7 (Debian 4.7.3-4)
1214 configuration: --prefix=/usr --extra-'''), '1.2.1')
1215         self.assertEqual(detect_exe_version('''ffmpeg version N-63176-g1fb4685
1216 built on May 15 2014 22:09:06 with gcc 4.8.2 (GCC)'''), 'N-63176-g1fb4685')
1217         self.assertEqual(detect_exe_version('''X server found. dri2 connection failed!
1218 Trying to open render node...
1219 Success at /dev/dri/renderD128.
1220 ffmpeg version 2.4.4 Copyright (c) 2000-2014 the FFmpeg ...'''), '2.4.4')
1221
1222     def test_age_restricted(self):
1223         self.assertFalse(age_restricted(None, 10))  # unrestricted content
1224         self.assertFalse(age_restricted(1, None))  # unrestricted policy
1225         self.assertFalse(age_restricted(8, 10))
1226         self.assertTrue(age_restricted(18, 14))
1227         self.assertFalse(age_restricted(18, 18))
1228
1229     def test_is_html(self):
1230         self.assertFalse(is_html(b'\x49\x44\x43<html'))
1231         self.assertTrue(is_html(b'<!DOCTYPE foo>\xaaa'))
1232         self.assertTrue(is_html(  # UTF-8 with BOM
1233             b'\xef\xbb\xbf<!DOCTYPE foo>\xaaa'))
1234         self.assertTrue(is_html(  # UTF-16-LE
1235             b'\xff\xfe<\x00h\x00t\x00m\x00l\x00>\x00\xe4\x00'
1236         ))
1237         self.assertTrue(is_html(  # UTF-16-BE
1238             b'\xfe\xff\x00<\x00h\x00t\x00m\x00l\x00>\x00\xe4'
1239         ))
1240         self.assertTrue(is_html(  # UTF-32-BE
1241             b'\x00\x00\xFE\xFF\x00\x00\x00<\x00\x00\x00h\x00\x00\x00t\x00\x00\x00m\x00\x00\x00l\x00\x00\x00>\x00\x00\x00\xe4'))
1242         self.assertTrue(is_html(  # UTF-32-LE
1243             b'\xFF\xFE\x00\x00<\x00\x00\x00h\x00\x00\x00t\x00\x00\x00m\x00\x00\x00l\x00\x00\x00>\x00\x00\x00\xe4\x00\x00\x00'))
1244
1245     def test_render_table(self):
1246         self.assertEqual(
1247             render_table(
1248                 ['a', 'empty', 'bcd'],
1249                 [[123, '', 4], [9999, '', 51]]),
1250             'a    empty bcd\n'
1251             '123        4\n'
1252             '9999       51')
1253
1254         self.assertEqual(
1255             render_table(
1256                 ['a', 'empty', 'bcd'],
1257                 [[123, '', 4], [9999, '', 51]],
1258                 hide_empty=True),
1259             'a    bcd\n'
1260             '123  4\n'
1261             '9999 51')
1262
1263         self.assertEqual(
1264             render_table(
1265                 ['\ta', 'bcd'],
1266                 [['1\t23', 4], ['\t9999', 51]]),
1267             '   a bcd\n'
1268             '1 23 4\n'
1269             '9999 51')
1270
1271         self.assertEqual(
1272             render_table(
1273                 ['a', 'bcd'],
1274                 [[123, 4], [9999, 51]],
1275                 delim='-'),
1276             'a    bcd\n'
1277             '--------\n'
1278             '123  4\n'
1279             '9999 51')
1280
1281         self.assertEqual(
1282             render_table(
1283                 ['a', 'bcd'],
1284                 [[123, 4], [9999, 51]],
1285                 delim='-', extra_gap=2),
1286             'a      bcd\n'
1287             '----------\n'
1288             '123    4\n'
1289             '9999   51')
1290
1291     def test_match_str(self):
1292         # Unary
1293         self.assertFalse(match_str('xy', {'x': 1200}))
1294         self.assertTrue(match_str('!xy', {'x': 1200}))
1295         self.assertTrue(match_str('x', {'x': 1200}))
1296         self.assertFalse(match_str('!x', {'x': 1200}))
1297         self.assertTrue(match_str('x', {'x': 0}))
1298         self.assertTrue(match_str('is_live', {'is_live': True}))
1299         self.assertFalse(match_str('is_live', {'is_live': False}))
1300         self.assertFalse(match_str('is_live', {'is_live': None}))
1301         self.assertFalse(match_str('is_live', {}))
1302         self.assertFalse(match_str('!is_live', {'is_live': True}))
1303         self.assertTrue(match_str('!is_live', {'is_live': False}))
1304         self.assertTrue(match_str('!is_live', {'is_live': None}))
1305         self.assertTrue(match_str('!is_live', {}))
1306         self.assertTrue(match_str('title', {'title': 'abc'}))
1307         self.assertTrue(match_str('title', {'title': ''}))
1308         self.assertFalse(match_str('!title', {'title': 'abc'}))
1309         self.assertFalse(match_str('!title', {'title': ''}))
1310
1311         # Numeric
1312         self.assertFalse(match_str('x>0', {'x': 0}))
1313         self.assertFalse(match_str('x>0', {}))
1314         self.assertTrue(match_str('x>?0', {}))
1315         self.assertTrue(match_str('x>1K', {'x': 1200}))
1316         self.assertFalse(match_str('x>2K', {'x': 1200}))
1317         self.assertTrue(match_str('x>=1200 & x < 1300', {'x': 1200}))
1318         self.assertFalse(match_str('x>=1100 & x < 1200', {'x': 1200}))
1319         self.assertTrue(match_str('x > 1:0:0', {'x': 3700}))
1320
1321         # String
1322         self.assertFalse(match_str('y=a212', {'y': 'foobar42'}))
1323         self.assertTrue(match_str('y=foobar42', {'y': 'foobar42'}))
1324         self.assertFalse(match_str('y!=foobar42', {'y': 'foobar42'}))
1325         self.assertTrue(match_str('y!=foobar2', {'y': 'foobar42'}))
1326         self.assertTrue(match_str('y^=foo', {'y': 'foobar42'}))
1327         self.assertFalse(match_str('y!^=foo', {'y': 'foobar42'}))
1328         self.assertFalse(match_str('y^=bar', {'y': 'foobar42'}))
1329         self.assertTrue(match_str('y!^=bar', {'y': 'foobar42'}))
1330         self.assertRaises(ValueError, match_str, 'x^=42', {'x': 42})
1331         self.assertTrue(match_str('y*=bar', {'y': 'foobar42'}))
1332         self.assertFalse(match_str('y!*=bar', {'y': 'foobar42'}))
1333         self.assertFalse(match_str('y*=baz', {'y': 'foobar42'}))
1334         self.assertTrue(match_str('y!*=baz', {'y': 'foobar42'}))
1335         self.assertTrue(match_str('y$=42', {'y': 'foobar42'}))
1336         self.assertFalse(match_str('y$=43', {'y': 'foobar42'}))
1337
1338         # And
1339         self.assertFalse(match_str(
1340             'like_count > 100 & dislike_count <? 50 & description',
1341             {'like_count': 90, 'description': 'foo'}))
1342         self.assertTrue(match_str(
1343             'like_count > 100 & dislike_count <? 50 & description',
1344             {'like_count': 190, 'description': 'foo'}))
1345         self.assertFalse(match_str(
1346             'like_count > 100 & dislike_count <? 50 & description',
1347             {'like_count': 190, 'dislike_count': 60, 'description': 'foo'}))
1348         self.assertFalse(match_str(
1349             'like_count > 100 & dislike_count <? 50 & description',
1350             {'like_count': 190, 'dislike_count': 10}))
1351
1352         # Regex
1353         self.assertTrue(match_str(r'x~=\bbar', {'x': 'foo bar'}))
1354         self.assertFalse(match_str(r'x~=\bbar.+', {'x': 'foo bar'}))
1355         self.assertFalse(match_str(r'x~=^FOO', {'x': 'foo bar'}))
1356         self.assertTrue(match_str(r'x~=(?i)^FOO', {'x': 'foo bar'}))
1357
1358         # Quotes
1359         self.assertTrue(match_str(r'x^="foo"', {'x': 'foo "bar"'}))
1360         self.assertFalse(match_str(r'x^="foo  "', {'x': 'foo "bar"'}))
1361         self.assertFalse(match_str(r'x$="bar"', {'x': 'foo "bar"'}))
1362         self.assertTrue(match_str(r'x$=" \"bar\""', {'x': 'foo "bar"'}))
1363
1364         # Escaping &
1365         self.assertFalse(match_str(r'x=foo & bar', {'x': 'foo & bar'}))
1366         self.assertTrue(match_str(r'x=foo \& bar', {'x': 'foo & bar'}))
1367         self.assertTrue(match_str(r'x=foo \& bar & x^=foo', {'x': 'foo & bar'}))
1368         self.assertTrue(match_str(r'x="foo \& bar" & x^=foo', {'x': 'foo & bar'}))
1369
1370         # Example from docs
1371         self.assertTrue(match_str(
1372             r"!is_live & like_count>?100 & description~='(?i)\bcats \& dogs\b'",
1373             {'description': 'Raining Cats & Dogs'}))
1374
1375         # Incomplete
1376         self.assertFalse(match_str('id!=foo', {'id': 'foo'}, True))
1377         self.assertTrue(match_str('x', {'id': 'foo'}, True))
1378         self.assertTrue(match_str('!x', {'id': 'foo'}, True))
1379         self.assertFalse(match_str('x', {'id': 'foo'}, False))
1380
1381     def test_parse_dfxp_time_expr(self):
1382         self.assertEqual(parse_dfxp_time_expr(None), None)
1383         self.assertEqual(parse_dfxp_time_expr(''), None)
1384         self.assertEqual(parse_dfxp_time_expr('0.1'), 0.1)
1385         self.assertEqual(parse_dfxp_time_expr('0.1s'), 0.1)
1386         self.assertEqual(parse_dfxp_time_expr('00:00:01'), 1.0)
1387         self.assertEqual(parse_dfxp_time_expr('00:00:01.100'), 1.1)
1388         self.assertEqual(parse_dfxp_time_expr('00:00:01:100'), 1.1)
1389
1390     def test_dfxp2srt(self):
1391         dfxp_data = '''<?xml version="1.0" encoding="UTF-8"?>
1392             <tt xmlns="http://www.w3.org/ns/ttml" xml:lang="en" xmlns:tts="http://www.w3.org/ns/ttml#parameter">
1393             <body>
1394                 <div xml:lang="en">
1395                     <p begin="0" end="1">The following line contains Chinese characters and special symbols</p>
1396                     <p begin="1" end="2">第二行<br/>♪♪</p>
1397                     <p begin="2" dur="1"><span>Third<br/>Line</span></p>
1398                     <p begin="3" end="-1">Lines with invalid timestamps are ignored</p>
1399                     <p begin="-1" end="-1">Ignore, two</p>
1400                     <p begin="3" dur="-1">Ignored, three</p>
1401                 </div>
1402             </body>
1403             </tt>'''.encode()
1404         srt_data = '''1
1405 00:00:00,000 --> 00:00:01,000
1406 The following line contains Chinese characters and special symbols
1407
1408 2
1409 00:00:01,000 --> 00:00:02,000
1410 第二行
1411 ♪♪
1412
1413 3
1414 00:00:02,000 --> 00:00:03,000
1415 Third
1416 Line
1417
1418 '''
1419         self.assertEqual(dfxp2srt(dfxp_data), srt_data)
1420
1421         dfxp_data_no_default_namespace = b'''<?xml version="1.0" encoding="UTF-8"?>
1422             <tt xml:lang="en" xmlns:tts="http://www.w3.org/ns/ttml#parameter">
1423             <body>
1424                 <div xml:lang="en">
1425                     <p begin="0" end="1">The first line</p>
1426                 </div>
1427             </body>
1428             </tt>'''
1429         srt_data = '''1
1430 00:00:00,000 --> 00:00:01,000
1431 The first line
1432
1433 '''
1434         self.assertEqual(dfxp2srt(dfxp_data_no_default_namespace), srt_data)
1435
1436         dfxp_data_with_style = b'''<?xml version="1.0" encoding="utf-8"?>
1437 <tt xmlns="http://www.w3.org/2006/10/ttaf1" xmlns:ttp="http://www.w3.org/2006/10/ttaf1#parameter" ttp:timeBase="media" xmlns:tts="http://www.w3.org/2006/10/ttaf1#style" xml:lang="en" xmlns:ttm="http://www.w3.org/2006/10/ttaf1#metadata">
1438   <head>
1439     <styling>
1440       <style id="s2" style="s0" tts:color="cyan" tts:fontWeight="bold" />
1441       <style id="s1" style="s0" tts:color="yellow" tts:fontStyle="italic" />
1442       <style id="s3" style="s0" tts:color="lime" tts:textDecoration="underline" />
1443       <style id="s0" tts:backgroundColor="black" tts:fontStyle="normal" tts:fontSize="16" tts:fontFamily="sansSerif" tts:color="white" />
1444     </styling>
1445   </head>
1446   <body tts:textAlign="center" style="s0">
1447     <div>
1448       <p begin="00:00:02.08" id="p0" end="00:00:05.84">default style<span tts:color="red">custom style</span></p>
1449       <p style="s2" begin="00:00:02.08" id="p0" end="00:00:05.84"><span tts:color="lime">part 1<br /></span><span tts:color="cyan">part 2</span></p>
1450       <p style="s3" begin="00:00:05.84" id="p1" end="00:00:09.56">line 3<br />part 3</p>
1451       <p style="s1" tts:textDecoration="underline" begin="00:00:09.56" id="p2" end="00:00:12.36"><span style="s2" tts:color="lime">inner<br /> </span>style</p>
1452     </div>
1453   </body>
1454 </tt>'''
1455         srt_data = '''1
1456 00:00:02,080 --> 00:00:05,840
1457 <font color="white" face="sansSerif" size="16">default style<font color="red">custom style</font></font>
1458
1459 2
1460 00:00:02,080 --> 00:00:05,840
1461 <b><font color="cyan" face="sansSerif" size="16"><font color="lime">part 1
1462 </font>part 2</font></b>
1463
1464 3
1465 00:00:05,840 --> 00:00:09,560
1466 <u><font color="lime">line 3
1467 part 3</font></u>
1468
1469 4
1470 00:00:09,560 --> 00:00:12,360
1471 <i><u><font color="yellow"><font color="lime">inner
1472  </font>style</font></u></i>
1473
1474 '''
1475         self.assertEqual(dfxp2srt(dfxp_data_with_style), srt_data)
1476
1477         dfxp_data_non_utf8 = '''<?xml version="1.0" encoding="UTF-16"?>
1478             <tt xmlns="http://www.w3.org/ns/ttml" xml:lang="en" xmlns:tts="http://www.w3.org/ns/ttml#parameter">
1479             <body>
1480                 <div xml:lang="en">
1481                     <p begin="0" end="1">Line 1</p>
1482                     <p begin="1" end="2">第二行</p>
1483                 </div>
1484             </body>
1485             </tt>'''.encode('utf-16')
1486         srt_data = '''1
1487 00:00:00,000 --> 00:00:01,000
1488 Line 1
1489
1490 2
1491 00:00:01,000 --> 00:00:02,000
1492 第二行
1493
1494 '''
1495         self.assertEqual(dfxp2srt(dfxp_data_non_utf8), srt_data)
1496
1497     def test_cli_option(self):
1498         self.assertEqual(cli_option({'proxy': '127.0.0.1:3128'}, '--proxy', 'proxy'), ['--proxy', '127.0.0.1:3128'])
1499         self.assertEqual(cli_option({'proxy': None}, '--proxy', 'proxy'), [])
1500         self.assertEqual(cli_option({}, '--proxy', 'proxy'), [])
1501         self.assertEqual(cli_option({'retries': 10}, '--retries', 'retries'), ['--retries', '10'])
1502
1503     def test_cli_valueless_option(self):
1504         self.assertEqual(cli_valueless_option(
1505             {'downloader': 'external'}, '--external-downloader', 'downloader', 'external'), ['--external-downloader'])
1506         self.assertEqual(cli_valueless_option(
1507             {'downloader': 'internal'}, '--external-downloader', 'downloader', 'external'), [])
1508         self.assertEqual(cli_valueless_option(
1509             {'nocheckcertificate': True}, '--no-check-certificate', 'nocheckcertificate'), ['--no-check-certificate'])
1510         self.assertEqual(cli_valueless_option(
1511             {'nocheckcertificate': False}, '--no-check-certificate', 'nocheckcertificate'), [])
1512         self.assertEqual(cli_valueless_option(
1513             {'checkcertificate': True}, '--no-check-certificate', 'checkcertificate', False), [])
1514         self.assertEqual(cli_valueless_option(
1515             {'checkcertificate': False}, '--no-check-certificate', 'checkcertificate', False), ['--no-check-certificate'])
1516
1517     def test_cli_bool_option(self):
1518         self.assertEqual(
1519             cli_bool_option(
1520                 {'nocheckcertificate': True}, '--no-check-certificate', 'nocheckcertificate'),
1521             ['--no-check-certificate', 'true'])
1522         self.assertEqual(
1523             cli_bool_option(
1524                 {'nocheckcertificate': True}, '--no-check-certificate', 'nocheckcertificate', separator='='),
1525             ['--no-check-certificate=true'])
1526         self.assertEqual(
1527             cli_bool_option(
1528                 {'nocheckcertificate': True}, '--check-certificate', 'nocheckcertificate', 'false', 'true'),
1529             ['--check-certificate', 'false'])
1530         self.assertEqual(
1531             cli_bool_option(
1532                 {'nocheckcertificate': True}, '--check-certificate', 'nocheckcertificate', 'false', 'true', '='),
1533             ['--check-certificate=false'])
1534         self.assertEqual(
1535             cli_bool_option(
1536                 {'nocheckcertificate': False}, '--check-certificate', 'nocheckcertificate', 'false', 'true'),
1537             ['--check-certificate', 'true'])
1538         self.assertEqual(
1539             cli_bool_option(
1540                 {'nocheckcertificate': False}, '--check-certificate', 'nocheckcertificate', 'false', 'true', '='),
1541             ['--check-certificate=true'])
1542         self.assertEqual(
1543             cli_bool_option(
1544                 {}, '--check-certificate', 'nocheckcertificate', 'false', 'true', '='),
1545             [])
1546
1547     def test_ohdave_rsa_encrypt(self):
1548         N = 0xab86b6371b5318aaa1d3c9e612a9f1264f372323c8c0f19875b5fc3b3fd3afcc1e5bec527aa94bfa85bffc157e4245aebda05389a5357b75115ac94f074aefcd
1549         e = 65537
1550
1551         self.assertEqual(
1552             ohdave_rsa_encrypt(b'aa111222', e, N),
1553             '726664bd9a23fd0c70f9f1b84aab5e3905ce1e45a584e9cbcf9bcc7510338fc1986d6c599ff990d923aa43c51c0d9013cd572e13bc58f4ae48f2ed8c0b0ba881')
1554
1555     def test_pkcs1pad(self):
1556         data = [1, 2, 3]
1557         padded_data = pkcs1pad(data, 32)
1558         self.assertEqual(padded_data[:2], [0, 2])
1559         self.assertEqual(padded_data[28:], [0, 1, 2, 3])
1560
1561         self.assertRaises(ValueError, pkcs1pad, data, 8)
1562
1563     def test_encode_base_n(self):
1564         self.assertEqual(encode_base_n(0, 30), '0')
1565         self.assertEqual(encode_base_n(80, 30), '2k')
1566
1567         custom_table = '9876543210ZYXWVUTSRQPONMLKJIHGFEDCBA'
1568         self.assertEqual(encode_base_n(0, 30, custom_table), '9')
1569         self.assertEqual(encode_base_n(80, 30, custom_table), '7P')
1570
1571         self.assertRaises(ValueError, encode_base_n, 0, 70)
1572         self.assertRaises(ValueError, encode_base_n, 0, 60, custom_table)
1573
1574     def test_caesar(self):
1575         self.assertEqual(caesar('ace', 'abcdef', 2), 'cea')
1576         self.assertEqual(caesar('cea', 'abcdef', -2), 'ace')
1577         self.assertEqual(caesar('ace', 'abcdef', -2), 'eac')
1578         self.assertEqual(caesar('eac', 'abcdef', 2), 'ace')
1579         self.assertEqual(caesar('ace', 'abcdef', 0), 'ace')
1580         self.assertEqual(caesar('xyz', 'abcdef', 2), 'xyz')
1581         self.assertEqual(caesar('abc', 'acegik', 2), 'ebg')
1582         self.assertEqual(caesar('ebg', 'acegik', -2), 'abc')
1583
1584     def test_rot47(self):
1585         self.assertEqual(rot47('yt-dlp'), r'JE\5=A')
1586         self.assertEqual(rot47('YT-DLP'), r'*%\s{!')
1587
1588     def test_urshift(self):
1589         self.assertEqual(urshift(3, 1), 1)
1590         self.assertEqual(urshift(-3, 1), 2147483646)
1591
1592     GET_ELEMENT_BY_CLASS_TEST_STRING = '''
1593         <span class="foo bar">nice</span>
1594     '''
1595
1596     def test_get_element_by_class(self):
1597         html = self.GET_ELEMENT_BY_CLASS_TEST_STRING
1598
1599         self.assertEqual(get_element_by_class('foo', html), 'nice')
1600         self.assertEqual(get_element_by_class('no-such-class', html), None)
1601
1602     def test_get_element_html_by_class(self):
1603         html = self.GET_ELEMENT_BY_CLASS_TEST_STRING
1604
1605         self.assertEqual(get_element_html_by_class('foo', html), html.strip())
1606         self.assertEqual(get_element_by_class('no-such-class', html), None)
1607
1608     GET_ELEMENT_BY_ATTRIBUTE_TEST_STRING = '''
1609         <div itemprop="author" itemscope>foo</div>
1610     '''
1611
1612     def test_get_element_by_attribute(self):
1613         html = self.GET_ELEMENT_BY_CLASS_TEST_STRING
1614
1615         self.assertEqual(get_element_by_attribute('class', 'foo bar', html), 'nice')
1616         self.assertEqual(get_element_by_attribute('class', 'foo', html), None)
1617         self.assertEqual(get_element_by_attribute('class', 'no-such-foo', html), None)
1618
1619         html = self.GET_ELEMENT_BY_ATTRIBUTE_TEST_STRING
1620
1621         self.assertEqual(get_element_by_attribute('itemprop', 'author', html), 'foo')
1622
1623     def test_get_element_html_by_attribute(self):
1624         html = self.GET_ELEMENT_BY_CLASS_TEST_STRING
1625
1626         self.assertEqual(get_element_html_by_attribute('class', 'foo bar', html), html.strip())
1627         self.assertEqual(get_element_html_by_attribute('class', 'foo', html), None)
1628         self.assertEqual(get_element_html_by_attribute('class', 'no-such-foo', html), None)
1629
1630         html = self.GET_ELEMENT_BY_ATTRIBUTE_TEST_STRING
1631
1632         self.assertEqual(get_element_html_by_attribute('itemprop', 'author', html), html.strip())
1633
1634     GET_ELEMENTS_BY_CLASS_TEST_STRING = '''
1635         <span class="foo bar">nice</span><span class="foo bar">also nice</span>
1636     '''
1637     GET_ELEMENTS_BY_CLASS_RES = ['<span class="foo bar">nice</span>', '<span class="foo bar">also nice</span>']
1638
1639     def test_get_elements_by_class(self):
1640         html = self.GET_ELEMENTS_BY_CLASS_TEST_STRING
1641
1642         self.assertEqual(get_elements_by_class('foo', html), ['nice', 'also nice'])
1643         self.assertEqual(get_elements_by_class('no-such-class', html), [])
1644
1645     def test_get_elements_html_by_class(self):
1646         html = self.GET_ELEMENTS_BY_CLASS_TEST_STRING
1647
1648         self.assertEqual(get_elements_html_by_class('foo', html), self.GET_ELEMENTS_BY_CLASS_RES)
1649         self.assertEqual(get_elements_html_by_class('no-such-class', html), [])
1650
1651     def test_get_elements_by_attribute(self):
1652         html = self.GET_ELEMENTS_BY_CLASS_TEST_STRING
1653
1654         self.assertEqual(get_elements_by_attribute('class', 'foo bar', html), ['nice', 'also nice'])
1655         self.assertEqual(get_elements_by_attribute('class', 'foo', html), [])
1656         self.assertEqual(get_elements_by_attribute('class', 'no-such-foo', html), [])
1657
1658     def test_get_elements_html_by_attribute(self):
1659         html = self.GET_ELEMENTS_BY_CLASS_TEST_STRING
1660
1661         self.assertEqual(get_elements_html_by_attribute('class', 'foo bar', html), self.GET_ELEMENTS_BY_CLASS_RES)
1662         self.assertEqual(get_elements_html_by_attribute('class', 'foo', html), [])
1663         self.assertEqual(get_elements_html_by_attribute('class', 'no-such-foo', html), [])
1664
1665     def test_get_elements_text_and_html_by_attribute(self):
1666         html = self.GET_ELEMENTS_BY_CLASS_TEST_STRING
1667
1668         self.assertEqual(
1669             list(get_elements_text_and_html_by_attribute('class', 'foo bar', html)),
1670             list(zip(['nice', 'also nice'], self.GET_ELEMENTS_BY_CLASS_RES)))
1671         self.assertEqual(list(get_elements_text_and_html_by_attribute('class', 'foo', html)), [])
1672         self.assertEqual(list(get_elements_text_and_html_by_attribute('class', 'no-such-foo', html)), [])
1673
1674     GET_ELEMENT_BY_TAG_TEST_STRING = '''
1675     random text lorem ipsum</p>
1676     <div>
1677         this should be returned
1678         <span>this should also be returned</span>
1679         <div>
1680             this should also be returned
1681         </div>
1682         closing tag above should not trick, so this should also be returned
1683     </div>
1684     but this text should not be returned
1685     '''
1686     GET_ELEMENT_BY_TAG_RES_OUTERDIV_HTML = GET_ELEMENT_BY_TAG_TEST_STRING.strip()[32:276]
1687     GET_ELEMENT_BY_TAG_RES_OUTERDIV_TEXT = GET_ELEMENT_BY_TAG_RES_OUTERDIV_HTML[5:-6]
1688     GET_ELEMENT_BY_TAG_RES_INNERSPAN_HTML = GET_ELEMENT_BY_TAG_TEST_STRING.strip()[78:119]
1689     GET_ELEMENT_BY_TAG_RES_INNERSPAN_TEXT = GET_ELEMENT_BY_TAG_RES_INNERSPAN_HTML[6:-7]
1690
1691     def test_get_element_text_and_html_by_tag(self):
1692         html = self.GET_ELEMENT_BY_TAG_TEST_STRING
1693
1694         self.assertEqual(
1695             get_element_text_and_html_by_tag('div', html),
1696             (self.GET_ELEMENT_BY_TAG_RES_OUTERDIV_TEXT, self.GET_ELEMENT_BY_TAG_RES_OUTERDIV_HTML))
1697         self.assertEqual(
1698             get_element_text_and_html_by_tag('span', html),
1699             (self.GET_ELEMENT_BY_TAG_RES_INNERSPAN_TEXT, self.GET_ELEMENT_BY_TAG_RES_INNERSPAN_HTML))
1700         self.assertRaises(compat_HTMLParseError, get_element_text_and_html_by_tag, 'article', html)
1701
1702     def test_iri_to_uri(self):
1703         self.assertEqual(
1704             iri_to_uri('https://www.google.com/search?q=foo&ie=utf-8&oe=utf-8&client=firefox-b'),
1705             'https://www.google.com/search?q=foo&ie=utf-8&oe=utf-8&client=firefox-b')  # Same
1706         self.assertEqual(
1707             iri_to_uri('https://www.google.com/search?q=Käsesoßenrührlöffel'),  # German for cheese sauce stirring spoon
1708             'https://www.google.com/search?q=K%C3%A4seso%C3%9Fenr%C3%BChrl%C3%B6ffel')
1709         self.assertEqual(
1710             iri_to_uri('https://www.google.com/search?q=lt<+gt>+eq%3D+amp%26+percent%25+hash%23+colon%3A+tilde~#trash=?&garbage=#'),
1711             'https://www.google.com/search?q=lt%3C+gt%3E+eq%3D+amp%26+percent%25+hash%23+colon%3A+tilde~#trash=?&garbage=#')
1712         self.assertEqual(
1713             iri_to_uri('http://правозащита38.рф/category/news/'),
1714             'http://xn--38-6kcaak9aj5chl4a3g.xn--p1ai/category/news/')
1715         self.assertEqual(
1716             iri_to_uri('http://www.правозащита38.рф/category/news/'),
1717             'http://www.xn--38-6kcaak9aj5chl4a3g.xn--p1ai/category/news/')
1718         self.assertEqual(
1719             iri_to_uri('https://i❤.ws/emojidomain/👍👏🤝💪'),
1720             'https://xn--i-7iq.ws/emojidomain/%F0%9F%91%8D%F0%9F%91%8F%F0%9F%A4%9D%F0%9F%92%AA')
1721         self.assertEqual(
1722             iri_to_uri('http://日本語.jp/'),
1723             'http://xn--wgv71a119e.jp/')
1724         self.assertEqual(
1725             iri_to_uri('http://导航.中国/'),
1726             'http://xn--fet810g.xn--fiqs8s/')
1727
1728     def test_clean_podcast_url(self):
1729         self.assertEqual(clean_podcast_url('https://www.podtrac.com/pts/redirect.mp3/chtbl.com/track/5899E/traffic.megaphone.fm/HSW7835899191.mp3'), 'https://traffic.megaphone.fm/HSW7835899191.mp3')
1730         self.assertEqual(clean_podcast_url('https://play.podtrac.com/npr-344098539/edge1.pod.npr.org/anon.npr-podcasts/podcast/npr/waitwait/2020/10/20201003_waitwait_wwdtmpodcast201003-015621a5-f035-4eca-a9a1-7c118d90bc3c.mp3'), 'https://edge1.pod.npr.org/anon.npr-podcasts/podcast/npr/waitwait/2020/10/20201003_waitwait_wwdtmpodcast201003-015621a5-f035-4eca-a9a1-7c118d90bc3c.mp3')
1731
1732     def test_LazyList(self):
1733         it = list(range(10))
1734
1735         self.assertEqual(list(LazyList(it)), it)
1736         self.assertEqual(LazyList(it).exhaust(), it)
1737         self.assertEqual(LazyList(it)[5], it[5])
1738
1739         self.assertEqual(LazyList(it)[5:], it[5:])
1740         self.assertEqual(LazyList(it)[:5], it[:5])
1741         self.assertEqual(LazyList(it)[::2], it[::2])
1742         self.assertEqual(LazyList(it)[1::2], it[1::2])
1743         self.assertEqual(LazyList(it)[5::-1], it[5::-1])
1744         self.assertEqual(LazyList(it)[6:2:-2], it[6:2:-2])
1745         self.assertEqual(LazyList(it)[::-1], it[::-1])
1746
1747         self.assertTrue(LazyList(it))
1748         self.assertFalse(LazyList(range(0)))
1749         self.assertEqual(len(LazyList(it)), len(it))
1750         self.assertEqual(repr(LazyList(it)), repr(it))
1751         self.assertEqual(str(LazyList(it)), str(it))
1752
1753         self.assertEqual(list(LazyList(it, reverse=True)), it[::-1])
1754         self.assertEqual(list(reversed(LazyList(it))[::-1]), it)
1755         self.assertEqual(list(reversed(LazyList(it))[1:3:7]), it[::-1][1:3:7])
1756
1757     def test_LazyList_laziness(self):
1758
1759         def test(ll, idx, val, cache):
1760             self.assertEqual(ll[idx], val)
1761             self.assertEqual(ll._cache, list(cache))
1762
1763         ll = LazyList(range(10))
1764         test(ll, 0, 0, range(1))
1765         test(ll, 5, 5, range(6))
1766         test(ll, -3, 7, range(10))
1767
1768         ll = LazyList(range(10), reverse=True)
1769         test(ll, -1, 0, range(1))
1770         test(ll, 3, 6, range(10))
1771
1772         ll = LazyList(itertools.count())
1773         test(ll, 10, 10, range(11))
1774         ll = reversed(ll)
1775         test(ll, -15, 14, range(15))
1776
1777     def test_format_bytes(self):
1778         self.assertEqual(format_bytes(0), '0.00B')
1779         self.assertEqual(format_bytes(1000), '1000.00B')
1780         self.assertEqual(format_bytes(1024), '1.00KiB')
1781         self.assertEqual(format_bytes(1024**2), '1.00MiB')
1782         self.assertEqual(format_bytes(1024**3), '1.00GiB')
1783         self.assertEqual(format_bytes(1024**4), '1.00TiB')
1784         self.assertEqual(format_bytes(1024**5), '1.00PiB')
1785         self.assertEqual(format_bytes(1024**6), '1.00EiB')
1786         self.assertEqual(format_bytes(1024**7), '1.00ZiB')
1787         self.assertEqual(format_bytes(1024**8), '1.00YiB')
1788         self.assertEqual(format_bytes(1024**9), '1024.00YiB')
1789
1790     def test_hide_login_info(self):
1791         self.assertEqual(Config.hide_login_info(['-u', 'foo', '-p', 'bar']),
1792                          ['-u', 'PRIVATE', '-p', 'PRIVATE'])
1793         self.assertEqual(Config.hide_login_info(['-u']), ['-u'])
1794         self.assertEqual(Config.hide_login_info(['-u', 'foo', '-u', 'bar']),
1795                          ['-u', 'PRIVATE', '-u', 'PRIVATE'])
1796         self.assertEqual(Config.hide_login_info(['--username=foo']),
1797                          ['--username=PRIVATE'])
1798
1799     def test_locked_file(self):
1800         TEXT = 'test_locked_file\n'
1801         FILE = 'test_locked_file.ytdl'
1802         MODES = 'war'  # Order is important
1803
1804         try:
1805             for lock_mode in MODES:
1806                 with locked_file(FILE, lock_mode, False) as f:
1807                     if lock_mode == 'r':
1808                         self.assertEqual(f.read(), TEXT * 2, 'Wrong file content')
1809                     else:
1810                         f.write(TEXT)
1811                     for test_mode in MODES:
1812                         testing_write = test_mode != 'r'
1813                         try:
1814                             with locked_file(FILE, test_mode, False):
1815                                 pass
1816                         except (BlockingIOError, PermissionError):
1817                             if not testing_write:  # FIXME
1818                                 print(f'Known issue: Exclusive lock ({lock_mode}) blocks read access ({test_mode})')
1819                                 continue
1820                             self.assertTrue(testing_write, f'{test_mode} is blocked by {lock_mode}')
1821                         else:
1822                             self.assertFalse(testing_write, f'{test_mode} is not blocked by {lock_mode}')
1823         finally:
1824             with contextlib.suppress(OSError):
1825                 os.remove(FILE)
1826
1827     def test_determine_file_encoding(self):
1828         self.assertEqual(determine_file_encoding(b''), (None, 0))
1829         self.assertEqual(determine_file_encoding(b'--verbose -x --audio-format mkv\n'), (None, 0))
1830
1831         self.assertEqual(determine_file_encoding(b'\xef\xbb\xbf'), ('utf-8', 3))
1832         self.assertEqual(determine_file_encoding(b'\x00\x00\xfe\xff'), ('utf-32-be', 4))
1833         self.assertEqual(determine_file_encoding(b'\xff\xfe'), ('utf-16-le', 2))
1834
1835         self.assertEqual(determine_file_encoding(b'\xff\xfe# coding: utf-8\n--verbose'), ('utf-16-le', 2))
1836
1837         self.assertEqual(determine_file_encoding(b'# coding: utf-8\n--verbose'), ('utf-8', 0))
1838         self.assertEqual(determine_file_encoding(b'# coding: someencodinghere-12345\n--verbose'), ('someencodinghere-12345', 0))
1839
1840         self.assertEqual(determine_file_encoding(b'#coding:utf-8\n--verbose'), ('utf-8', 0))
1841         self.assertEqual(determine_file_encoding(b'#  coding:   utf-8   \r\n--verbose'), ('utf-8', 0))
1842
1843         self.assertEqual(determine_file_encoding('# coding: utf-32-be'.encode('utf-32-be')), ('utf-32-be', 0))
1844         self.assertEqual(determine_file_encoding('# coding: utf-16-le'.encode('utf-16-le')), ('utf-16-le', 0))
1845
1846
1847 if __name__ == '__main__':
1848     unittest.main()