Merge pull request #8092 from bpfoley/twitter-thumbnail
[youtube-dl] / test / test_utils.py
1 #!/usr/bin/env python
2 # coding: utf-8
3
4 from __future__ import unicode_literals
5
6 # Allow direct execution
7 import os
8 import sys
9 import unittest
10 sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
11
12
13 # Various small unit tests
14 import io
15 import json
16 import xml.etree.ElementTree
17
18 from youtube_dl.utils import (
19     age_restricted,
20     args_to_str,
21     encode_base_n,
22     clean_html,
23     DateRange,
24     detect_exe_version,
25     determine_ext,
26     dict_get,
27     encode_compat_str,
28     encodeFilename,
29     escape_rfc3986,
30     escape_url,
31     extract_attributes,
32     ExtractorError,
33     find_xpath_attr,
34     fix_xml_ampersands,
35     InAdvancePagedList,
36     intlist_to_bytes,
37     is_html,
38     js_to_json,
39     limit_length,
40     ohdave_rsa_encrypt,
41     OnDemandPagedList,
42     orderedSet,
43     parse_duration,
44     parse_filesize,
45     parse_count,
46     parse_iso8601,
47     read_batch_urls,
48     sanitize_filename,
49     sanitize_path,
50     prepend_extension,
51     replace_extension,
52     remove_quotes,
53     shell_quote,
54     smuggle_url,
55     str_to_int,
56     strip_jsonp,
57     struct_unpack,
58     timeconvert,
59     unescapeHTML,
60     unified_strdate,
61     unsmuggle_url,
62     uppercase_escape,
63     lowercase_escape,
64     url_basename,
65     urlencode_postdata,
66     update_url_query,
67     version_tuple,
68     xpath_with_ns,
69     xpath_element,
70     xpath_text,
71     xpath_attr,
72     render_table,
73     match_str,
74     parse_dfxp_time_expr,
75     dfxp2srt,
76     cli_option,
77     cli_valueless_option,
78     cli_bool_option,
79 )
80 from youtube_dl.compat import (
81     compat_chr,
82     compat_etree_fromstring,
83     compat_urlparse,
84     compat_parse_qs,
85 )
86
87
88 class TestUtil(unittest.TestCase):
89     def test_timeconvert(self):
90         self.assertTrue(timeconvert('') is None)
91         self.assertTrue(timeconvert('bougrg') is None)
92
93     def test_sanitize_filename(self):
94         self.assertEqual(sanitize_filename('abc'), 'abc')
95         self.assertEqual(sanitize_filename('abc_d-e'), 'abc_d-e')
96
97         self.assertEqual(sanitize_filename('123'), '123')
98
99         self.assertEqual('abc_de', sanitize_filename('abc/de'))
100         self.assertFalse('/' in sanitize_filename('abc/de///'))
101
102         self.assertEqual('abc_de', sanitize_filename('abc/<>\\*|de'))
103         self.assertEqual('xxx', sanitize_filename('xxx/<>\\*|'))
104         self.assertEqual('yes no', sanitize_filename('yes? no'))
105         self.assertEqual('this - that', sanitize_filename('this: that'))
106
107         self.assertEqual(sanitize_filename('AT&T'), 'AT&T')
108         aumlaut = 'ä'
109         self.assertEqual(sanitize_filename(aumlaut), aumlaut)
110         tests = '\u043a\u0438\u0440\u0438\u043b\u043b\u0438\u0446\u0430'
111         self.assertEqual(sanitize_filename(tests), tests)
112
113         self.assertEqual(
114             sanitize_filename('New World record at 0:12:34'),
115             'New World record at 0_12_34')
116
117         self.assertEqual(sanitize_filename('--gasdgf'), '_-gasdgf')
118         self.assertEqual(sanitize_filename('--gasdgf', is_id=True), '--gasdgf')
119         self.assertEqual(sanitize_filename('.gasdgf'), 'gasdgf')
120         self.assertEqual(sanitize_filename('.gasdgf', is_id=True), '.gasdgf')
121
122         forbidden = '"\0\\/'
123         for fc in forbidden:
124             for fbc in forbidden:
125                 self.assertTrue(fbc not in sanitize_filename(fc))
126
127     def test_sanitize_filename_restricted(self):
128         self.assertEqual(sanitize_filename('abc', restricted=True), 'abc')
129         self.assertEqual(sanitize_filename('abc_d-e', restricted=True), 'abc_d-e')
130
131         self.assertEqual(sanitize_filename('123', restricted=True), '123')
132
133         self.assertEqual('abc_de', sanitize_filename('abc/de', restricted=True))
134         self.assertFalse('/' in sanitize_filename('abc/de///', restricted=True))
135
136         self.assertEqual('abc_de', sanitize_filename('abc/<>\\*|de', restricted=True))
137         self.assertEqual('xxx', sanitize_filename('xxx/<>\\*|', restricted=True))
138         self.assertEqual('yes_no', sanitize_filename('yes? no', restricted=True))
139         self.assertEqual('this_-_that', sanitize_filename('this: that', restricted=True))
140
141         tests = 'a\xe4b\u4e2d\u56fd\u7684c'
142         self.assertEqual(sanitize_filename(tests, restricted=True), 'a_b_c')
143         self.assertTrue(sanitize_filename('\xf6', restricted=True) != '')  # No empty filename
144
145         forbidden = '"\0\\/&!: \'\t\n()[]{}$;`^,#'
146         for fc in forbidden:
147             for fbc in forbidden:
148                 self.assertTrue(fbc not in sanitize_filename(fc, restricted=True))
149
150         # Handle a common case more neatly
151         self.assertEqual(sanitize_filename('\u5927\u58f0\u5e26 - Song', restricted=True), 'Song')
152         self.assertEqual(sanitize_filename('\u603b\u7edf: Speech', restricted=True), 'Speech')
153         # .. but make sure the file name is never empty
154         self.assertTrue(sanitize_filename('-', restricted=True) != '')
155         self.assertTrue(sanitize_filename(':', restricted=True) != '')
156
157     def test_sanitize_ids(self):
158         self.assertEqual(sanitize_filename('_n_cd26wFpw', is_id=True), '_n_cd26wFpw')
159         self.assertEqual(sanitize_filename('_BD_eEpuzXw', is_id=True), '_BD_eEpuzXw')
160         self.assertEqual(sanitize_filename('N0Y__7-UOdI', is_id=True), 'N0Y__7-UOdI')
161
162     def test_sanitize_path(self):
163         if sys.platform != 'win32':
164             return
165
166         self.assertEqual(sanitize_path('abc'), 'abc')
167         self.assertEqual(sanitize_path('abc/def'), 'abc\\def')
168         self.assertEqual(sanitize_path('abc\\def'), 'abc\\def')
169         self.assertEqual(sanitize_path('abc|def'), 'abc#def')
170         self.assertEqual(sanitize_path('<>:"|?*'), '#######')
171         self.assertEqual(sanitize_path('C:/abc/def'), 'C:\\abc\\def')
172         self.assertEqual(sanitize_path('C?:/abc/def'), 'C##\\abc\\def')
173
174         self.assertEqual(sanitize_path('\\\\?\\UNC\\ComputerName\\abc'), '\\\\?\\UNC\\ComputerName\\abc')
175         self.assertEqual(sanitize_path('\\\\?\\UNC/ComputerName/abc'), '\\\\?\\UNC\\ComputerName\\abc')
176
177         self.assertEqual(sanitize_path('\\\\?\\C:\\abc'), '\\\\?\\C:\\abc')
178         self.assertEqual(sanitize_path('\\\\?\\C:/abc'), '\\\\?\\C:\\abc')
179         self.assertEqual(sanitize_path('\\\\?\\C:\\ab?c\\de:f'), '\\\\?\\C:\\ab#c\\de#f')
180         self.assertEqual(sanitize_path('\\\\?\\C:\\abc'), '\\\\?\\C:\\abc')
181
182         self.assertEqual(
183             sanitize_path('youtube/%(uploader)s/%(autonumber)s-%(title)s-%(upload_date)s.%(ext)s'),
184             'youtube\\%(uploader)s\\%(autonumber)s-%(title)s-%(upload_date)s.%(ext)s')
185
186         self.assertEqual(
187             sanitize_path('youtube/TheWreckingYard ./00001-Not bad, Especially for Free! (1987 Yamaha 700)-20141116.mp4.part'),
188             'youtube\\TheWreckingYard #\\00001-Not bad, Especially for Free! (1987 Yamaha 700)-20141116.mp4.part')
189         self.assertEqual(sanitize_path('abc/def...'), 'abc\\def..#')
190         self.assertEqual(sanitize_path('abc.../def'), 'abc..#\\def')
191         self.assertEqual(sanitize_path('abc.../def...'), 'abc..#\\def..#')
192
193         self.assertEqual(sanitize_path('../abc'), '..\\abc')
194         self.assertEqual(sanitize_path('../../abc'), '..\\..\\abc')
195         self.assertEqual(sanitize_path('./abc'), 'abc')
196         self.assertEqual(sanitize_path('./../abc'), '..\\abc')
197
198     def test_prepend_extension(self):
199         self.assertEqual(prepend_extension('abc.ext', 'temp'), 'abc.temp.ext')
200         self.assertEqual(prepend_extension('abc.ext', 'temp', 'ext'), 'abc.temp.ext')
201         self.assertEqual(prepend_extension('abc.unexpected_ext', 'temp', 'ext'), 'abc.unexpected_ext.temp')
202         self.assertEqual(prepend_extension('abc', 'temp'), 'abc.temp')
203         self.assertEqual(prepend_extension('.abc', 'temp'), '.abc.temp')
204         self.assertEqual(prepend_extension('.abc.ext', 'temp'), '.abc.temp.ext')
205
206     def test_replace_extension(self):
207         self.assertEqual(replace_extension('abc.ext', 'temp'), 'abc.temp')
208         self.assertEqual(replace_extension('abc.ext', 'temp', 'ext'), 'abc.temp')
209         self.assertEqual(replace_extension('abc.unexpected_ext', 'temp', 'ext'), 'abc.unexpected_ext.temp')
210         self.assertEqual(replace_extension('abc', 'temp'), 'abc.temp')
211         self.assertEqual(replace_extension('.abc', 'temp'), '.abc.temp')
212         self.assertEqual(replace_extension('.abc.ext', 'temp'), '.abc.temp')
213
214     def test_remove_quotes(self):
215         self.assertEqual(remove_quotes(None), None)
216         self.assertEqual(remove_quotes('"'), '"')
217         self.assertEqual(remove_quotes("'"), "'")
218         self.assertEqual(remove_quotes(';'), ';')
219         self.assertEqual(remove_quotes('";'), '";')
220         self.assertEqual(remove_quotes('""'), '')
221         self.assertEqual(remove_quotes('";"'), ';')
222
223     def test_ordered_set(self):
224         self.assertEqual(orderedSet([1, 1, 2, 3, 4, 4, 5, 6, 7, 3, 5]), [1, 2, 3, 4, 5, 6, 7])
225         self.assertEqual(orderedSet([]), [])
226         self.assertEqual(orderedSet([1]), [1])
227         # keep the list ordered
228         self.assertEqual(orderedSet([135, 1, 1, 1]), [135, 1])
229
230     def test_unescape_html(self):
231         self.assertEqual(unescapeHTML('%20;'), '%20;')
232         self.assertEqual(unescapeHTML('&#x2F;'), '/')
233         self.assertEqual(unescapeHTML('&#47;'), '/')
234         self.assertEqual(unescapeHTML('&eacute;'), 'é')
235         self.assertEqual(unescapeHTML('&#2013266066;'), '&#2013266066;')
236
237     def test_daterange(self):
238         _20century = DateRange("19000101", "20000101")
239         self.assertFalse("17890714" in _20century)
240         _ac = DateRange("00010101")
241         self.assertTrue("19690721" in _ac)
242         _firstmilenium = DateRange(end="10000101")
243         self.assertTrue("07110427" in _firstmilenium)
244
245     def test_unified_dates(self):
246         self.assertEqual(unified_strdate('December 21, 2010'), '20101221')
247         self.assertEqual(unified_strdate('8/7/2009'), '20090708')
248         self.assertEqual(unified_strdate('Dec 14, 2012'), '20121214')
249         self.assertEqual(unified_strdate('2012/10/11 01:56:38 +0000'), '20121011')
250         self.assertEqual(unified_strdate('1968 12 10'), '19681210')
251         self.assertEqual(unified_strdate('1968-12-10'), '19681210')
252         self.assertEqual(unified_strdate('28/01/2014 21:00:00 +0100'), '20140128')
253         self.assertEqual(
254             unified_strdate('11/26/2014 11:30:00 AM PST', day_first=False),
255             '20141126')
256         self.assertEqual(
257             unified_strdate('2/2/2015 6:47:40 PM', day_first=False),
258             '20150202')
259         self.assertEqual(unified_strdate('Feb 14th 2016 5:45PM'), '20160214')
260         self.assertEqual(unified_strdate('25-09-2014'), '20140925')
261         self.assertEqual(unified_strdate('UNKNOWN DATE FORMAT'), None)
262
263     def test_determine_ext(self):
264         self.assertEqual(determine_ext('http://example.com/foo/bar.mp4/?download'), 'mp4')
265         self.assertEqual(determine_ext('http://example.com/foo/bar/?download', None), None)
266         self.assertEqual(determine_ext('http://example.com/foo/bar.nonext/?download', None), None)
267         self.assertEqual(determine_ext('http://example.com/foo/bar/mp4?download', None), None)
268         self.assertEqual(determine_ext('http://example.com/foo/bar.m3u8//?download'), 'm3u8')
269
270     def test_find_xpath_attr(self):
271         testxml = '''<root>
272             <node/>
273             <node x="a"/>
274             <node x="a" y="c" />
275             <node x="b" y="d" />
276             <node x="" />
277         </root>'''
278         doc = compat_etree_fromstring(testxml)
279
280         self.assertEqual(find_xpath_attr(doc, './/fourohfour', 'n'), None)
281         self.assertEqual(find_xpath_attr(doc, './/fourohfour', 'n', 'v'), None)
282         self.assertEqual(find_xpath_attr(doc, './/node', 'n'), None)
283         self.assertEqual(find_xpath_attr(doc, './/node', 'n', 'v'), None)
284         self.assertEqual(find_xpath_attr(doc, './/node', 'x'), doc[1])
285         self.assertEqual(find_xpath_attr(doc, './/node', 'x', 'a'), doc[1])
286         self.assertEqual(find_xpath_attr(doc, './/node', 'x', 'b'), doc[3])
287         self.assertEqual(find_xpath_attr(doc, './/node', 'y'), doc[2])
288         self.assertEqual(find_xpath_attr(doc, './/node', 'y', 'c'), doc[2])
289         self.assertEqual(find_xpath_attr(doc, './/node', 'y', 'd'), doc[3])
290         self.assertEqual(find_xpath_attr(doc, './/node', 'x', ''), doc[4])
291
292     def test_xpath_with_ns(self):
293         testxml = '''<root xmlns:media="http://example.com/">
294             <media:song>
295                 <media:author>The Author</media:author>
296                 <url>http://server.com/download.mp3</url>
297             </media:song>
298         </root>'''
299         doc = compat_etree_fromstring(testxml)
300         find = lambda p: doc.find(xpath_with_ns(p, {'media': 'http://example.com/'}))
301         self.assertTrue(find('media:song') is not None)
302         self.assertEqual(find('media:song/media:author').text, 'The Author')
303         self.assertEqual(find('media:song/url').text, 'http://server.com/download.mp3')
304
305     def test_xpath_element(self):
306         doc = xml.etree.ElementTree.Element('root')
307         div = xml.etree.ElementTree.SubElement(doc, 'div')
308         p = xml.etree.ElementTree.SubElement(div, 'p')
309         p.text = 'Foo'
310         self.assertEqual(xpath_element(doc, 'div/p'), p)
311         self.assertEqual(xpath_element(doc, ['div/p']), p)
312         self.assertEqual(xpath_element(doc, ['div/bar', 'div/p']), p)
313         self.assertEqual(xpath_element(doc, 'div/bar', default='default'), 'default')
314         self.assertEqual(xpath_element(doc, ['div/bar'], default='default'), 'default')
315         self.assertTrue(xpath_element(doc, 'div/bar') is None)
316         self.assertTrue(xpath_element(doc, ['div/bar']) is None)
317         self.assertTrue(xpath_element(doc, ['div/bar'], 'div/baz') is None)
318         self.assertRaises(ExtractorError, xpath_element, doc, 'div/bar', fatal=True)
319         self.assertRaises(ExtractorError, xpath_element, doc, ['div/bar'], fatal=True)
320         self.assertRaises(ExtractorError, xpath_element, doc, ['div/bar', 'div/baz'], fatal=True)
321
322     def test_xpath_text(self):
323         testxml = '''<root>
324             <div>
325                 <p>Foo</p>
326             </div>
327         </root>'''
328         doc = compat_etree_fromstring(testxml)
329         self.assertEqual(xpath_text(doc, 'div/p'), 'Foo')
330         self.assertEqual(xpath_text(doc, 'div/bar', default='default'), 'default')
331         self.assertTrue(xpath_text(doc, 'div/bar') is None)
332         self.assertRaises(ExtractorError, xpath_text, doc, 'div/bar', fatal=True)
333
334     def test_xpath_attr(self):
335         testxml = '''<root>
336             <div>
337                 <p x="a">Foo</p>
338             </div>
339         </root>'''
340         doc = compat_etree_fromstring(testxml)
341         self.assertEqual(xpath_attr(doc, 'div/p', 'x'), 'a')
342         self.assertEqual(xpath_attr(doc, 'div/bar', 'x'), None)
343         self.assertEqual(xpath_attr(doc, 'div/p', 'y'), None)
344         self.assertEqual(xpath_attr(doc, 'div/bar', 'x', default='default'), 'default')
345         self.assertEqual(xpath_attr(doc, 'div/p', 'y', default='default'), 'default')
346         self.assertRaises(ExtractorError, xpath_attr, doc, 'div/bar', 'x', fatal=True)
347         self.assertRaises(ExtractorError, xpath_attr, doc, 'div/p', 'y', fatal=True)
348
349     def test_smuggle_url(self):
350         data = {"ö": "ö", "abc": [3]}
351         url = 'https://foo.bar/baz?x=y#a'
352         smug_url = smuggle_url(url, data)
353         unsmug_url, unsmug_data = unsmuggle_url(smug_url)
354         self.assertEqual(url, unsmug_url)
355         self.assertEqual(data, unsmug_data)
356
357         res_url, res_data = unsmuggle_url(url)
358         self.assertEqual(res_url, url)
359         self.assertEqual(res_data, None)
360
361     def test_shell_quote(self):
362         args = ['ffmpeg', '-i', encodeFilename('ñ€ß\'.mp4')]
363         self.assertEqual(shell_quote(args), """ffmpeg -i 'ñ€ß'"'"'.mp4'""")
364
365     def test_str_to_int(self):
366         self.assertEqual(str_to_int('123,456'), 123456)
367         self.assertEqual(str_to_int('123.456'), 123456)
368
369     def test_url_basename(self):
370         self.assertEqual(url_basename('http://foo.de/'), '')
371         self.assertEqual(url_basename('http://foo.de/bar/baz'), 'baz')
372         self.assertEqual(url_basename('http://foo.de/bar/baz?x=y'), 'baz')
373         self.assertEqual(url_basename('http://foo.de/bar/baz#x=y'), 'baz')
374         self.assertEqual(url_basename('http://foo.de/bar/baz/'), 'baz')
375         self.assertEqual(
376             url_basename('http://media.w3.org/2010/05/sintel/trailer.mp4'),
377             'trailer.mp4')
378
379     def test_parse_duration(self):
380         self.assertEqual(parse_duration(None), None)
381         self.assertEqual(parse_duration(False), None)
382         self.assertEqual(parse_duration('invalid'), None)
383         self.assertEqual(parse_duration('1'), 1)
384         self.assertEqual(parse_duration('1337:12'), 80232)
385         self.assertEqual(parse_duration('9:12:43'), 33163)
386         self.assertEqual(parse_duration('12:00'), 720)
387         self.assertEqual(parse_duration('00:01:01'), 61)
388         self.assertEqual(parse_duration('x:y'), None)
389         self.assertEqual(parse_duration('3h11m53s'), 11513)
390         self.assertEqual(parse_duration('3h 11m 53s'), 11513)
391         self.assertEqual(parse_duration('3 hours 11 minutes 53 seconds'), 11513)
392         self.assertEqual(parse_duration('3 hours 11 mins 53 secs'), 11513)
393         self.assertEqual(parse_duration('62m45s'), 3765)
394         self.assertEqual(parse_duration('6m59s'), 419)
395         self.assertEqual(parse_duration('49s'), 49)
396         self.assertEqual(parse_duration('0h0m0s'), 0)
397         self.assertEqual(parse_duration('0m0s'), 0)
398         self.assertEqual(parse_duration('0s'), 0)
399         self.assertEqual(parse_duration('01:02:03.05'), 3723.05)
400         self.assertEqual(parse_duration('T30M38S'), 1838)
401         self.assertEqual(parse_duration('5 s'), 5)
402         self.assertEqual(parse_duration('3 min'), 180)
403         self.assertEqual(parse_duration('2.5 hours'), 9000)
404         self.assertEqual(parse_duration('02:03:04'), 7384)
405         self.assertEqual(parse_duration('01:02:03:04'), 93784)
406         self.assertEqual(parse_duration('1 hour 3 minutes'), 3780)
407         self.assertEqual(parse_duration('87 Min.'), 5220)
408
409     def test_fix_xml_ampersands(self):
410         self.assertEqual(
411             fix_xml_ampersands('"&x=y&z=a'), '"&amp;x=y&amp;z=a')
412         self.assertEqual(
413             fix_xml_ampersands('"&amp;x=y&wrong;&z=a'),
414             '"&amp;x=y&amp;wrong;&amp;z=a')
415         self.assertEqual(
416             fix_xml_ampersands('&amp;&apos;&gt;&lt;&quot;'),
417             '&amp;&apos;&gt;&lt;&quot;')
418         self.assertEqual(
419             fix_xml_ampersands('&#1234;&#x1abC;'), '&#1234;&#x1abC;')
420         self.assertEqual(fix_xml_ampersands('&#&#'), '&amp;#&amp;#')
421
422     def test_paged_list(self):
423         def testPL(size, pagesize, sliceargs, expected):
424             def get_page(pagenum):
425                 firstid = pagenum * pagesize
426                 upto = min(size, pagenum * pagesize + pagesize)
427                 for i in range(firstid, upto):
428                     yield i
429
430             pl = OnDemandPagedList(get_page, pagesize)
431             got = pl.getslice(*sliceargs)
432             self.assertEqual(got, expected)
433
434             iapl = InAdvancePagedList(get_page, size // pagesize + 1, pagesize)
435             got = iapl.getslice(*sliceargs)
436             self.assertEqual(got, expected)
437
438         testPL(5, 2, (), [0, 1, 2, 3, 4])
439         testPL(5, 2, (1,), [1, 2, 3, 4])
440         testPL(5, 2, (2,), [2, 3, 4])
441         testPL(5, 2, (4,), [4])
442         testPL(5, 2, (0, 3), [0, 1, 2])
443         testPL(5, 2, (1, 4), [1, 2, 3])
444         testPL(5, 2, (2, 99), [2, 3, 4])
445         testPL(5, 2, (20, 99), [])
446
447     def test_struct_unpack(self):
448         self.assertEqual(struct_unpack('!B', b'\x00'), (0,))
449
450     def test_read_batch_urls(self):
451         f = io.StringIO('''\xef\xbb\xbf foo
452             bar\r
453             baz
454             # More after this line\r
455             ; or after this
456             bam''')
457         self.assertEqual(read_batch_urls(f), ['foo', 'bar', 'baz', 'bam'])
458
459     def test_urlencode_postdata(self):
460         data = urlencode_postdata({'username': 'foo@bar.com', 'password': '1234'})
461         self.assertTrue(isinstance(data, bytes))
462
463     def test_update_url_query(self):
464         def query_dict(url):
465             return compat_parse_qs(compat_urlparse.urlparse(url).query)
466         self.assertEqual(query_dict(update_url_query(
467             'http://example.com/path', {'quality': ['HD'], 'format': ['mp4']})),
468             query_dict('http://example.com/path?quality=HD&format=mp4'))
469         self.assertEqual(query_dict(update_url_query(
470             'http://example.com/path', {'system': ['LINUX', 'WINDOWS']})),
471             query_dict('http://example.com/path?system=LINUX&system=WINDOWS'))
472         self.assertEqual(query_dict(update_url_query(
473             'http://example.com/path', {'fields': 'id,formats,subtitles'})),
474             query_dict('http://example.com/path?fields=id,formats,subtitles'))
475         self.assertEqual(query_dict(update_url_query(
476             'http://example.com/path', {'fields': ('id,formats,subtitles', 'thumbnails')})),
477             query_dict('http://example.com/path?fields=id,formats,subtitles&fields=thumbnails'))
478         self.assertEqual(query_dict(update_url_query(
479             'http://example.com/path?manifest=f4m', {'manifest': []})),
480             query_dict('http://example.com/path'))
481         self.assertEqual(query_dict(update_url_query(
482             'http://example.com/path?system=LINUX&system=WINDOWS', {'system': 'LINUX'})),
483             query_dict('http://example.com/path?system=LINUX'))
484         self.assertEqual(query_dict(update_url_query(
485             'http://example.com/path', {'fields': b'id,formats,subtitles'})),
486             query_dict('http://example.com/path?fields=id,formats,subtitles'))
487         self.assertEqual(query_dict(update_url_query(
488             'http://example.com/path', {'width': 1080, 'height': 720})),
489             query_dict('http://example.com/path?width=1080&height=720'))
490         self.assertEqual(query_dict(update_url_query(
491             'http://example.com/path', {'bitrate': 5020.43})),
492             query_dict('http://example.com/path?bitrate=5020.43'))
493         self.assertEqual(query_dict(update_url_query(
494             'http://example.com/path', {'test': '第二行тест'})),
495             query_dict('http://example.com/path?test=%E7%AC%AC%E4%BA%8C%E8%A1%8C%D1%82%D0%B5%D1%81%D1%82'))
496
497     def test_dict_get(self):
498         FALSE_VALUES = {
499             'none': None,
500             'false': False,
501             'zero': 0,
502             'empty_string': '',
503             'empty_list': [],
504         }
505         d = FALSE_VALUES.copy()
506         d['a'] = 42
507         self.assertEqual(dict_get(d, 'a'), 42)
508         self.assertEqual(dict_get(d, 'b'), None)
509         self.assertEqual(dict_get(d, 'b', 42), 42)
510         self.assertEqual(dict_get(d, ('a', )), 42)
511         self.assertEqual(dict_get(d, ('b', 'a', )), 42)
512         self.assertEqual(dict_get(d, ('b', 'c', 'a', 'd', )), 42)
513         self.assertEqual(dict_get(d, ('b', 'c', )), None)
514         self.assertEqual(dict_get(d, ('b', 'c', ), 42), 42)
515         for key, false_value in FALSE_VALUES.items():
516             self.assertEqual(dict_get(d, ('b', 'c', key, )), None)
517             self.assertEqual(dict_get(d, ('b', 'c', key, ), skip_false_values=False), false_value)
518
519     def test_encode_compat_str(self):
520         self.assertEqual(encode_compat_str(b'\xd1\x82\xd0\xb5\xd1\x81\xd1\x82', 'utf-8'), 'тест')
521         self.assertEqual(encode_compat_str('тест', 'utf-8'), 'тест')
522
523     def test_parse_iso8601(self):
524         self.assertEqual(parse_iso8601('2014-03-23T23:04:26+0100'), 1395612266)
525         self.assertEqual(parse_iso8601('2014-03-23T22:04:26+0000'), 1395612266)
526         self.assertEqual(parse_iso8601('2014-03-23T22:04:26Z'), 1395612266)
527         self.assertEqual(parse_iso8601('2014-03-23T22:04:26.1234Z'), 1395612266)
528         self.assertEqual(parse_iso8601('2015-09-29T08:27:31.727'), 1443515251)
529         self.assertEqual(parse_iso8601('2015-09-29T08-27-31.727'), None)
530
531     def test_strip_jsonp(self):
532         stripped = strip_jsonp('cb ([ {"id":"532cb",\n\n\n"x":\n3}\n]\n);')
533         d = json.loads(stripped)
534         self.assertEqual(d, [{"id": "532cb", "x": 3}])
535
536         stripped = strip_jsonp('parseMetadata({"STATUS":"OK"})\n\n\n//epc')
537         d = json.loads(stripped)
538         self.assertEqual(d, {'STATUS': 'OK'})
539
540         stripped = strip_jsonp('ps.embedHandler({"status": "success"});')
541         d = json.loads(stripped)
542         self.assertEqual(d, {'status': 'success'})
543
544     def test_uppercase_escape(self):
545         self.assertEqual(uppercase_escape('aä'), 'aä')
546         self.assertEqual(uppercase_escape('\\U0001d550'), '𝕐')
547
548     def test_lowercase_escape(self):
549         self.assertEqual(lowercase_escape('aä'), 'aä')
550         self.assertEqual(lowercase_escape('\\u0026'), '&')
551
552     def test_limit_length(self):
553         self.assertEqual(limit_length(None, 12), None)
554         self.assertEqual(limit_length('foo', 12), 'foo')
555         self.assertTrue(
556             limit_length('foo bar baz asd', 12).startswith('foo bar'))
557         self.assertTrue('...' in limit_length('foo bar baz asd', 12))
558
559     def test_escape_rfc3986(self):
560         reserved = "!*'();:@&=+$,/?#[]"
561         unreserved = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_.~'
562         self.assertEqual(escape_rfc3986(reserved), reserved)
563         self.assertEqual(escape_rfc3986(unreserved), unreserved)
564         self.assertEqual(escape_rfc3986('тест'), '%D1%82%D0%B5%D1%81%D1%82')
565         self.assertEqual(escape_rfc3986('%D1%82%D0%B5%D1%81%D1%82'), '%D1%82%D0%B5%D1%81%D1%82')
566         self.assertEqual(escape_rfc3986('foo bar'), 'foo%20bar')
567         self.assertEqual(escape_rfc3986('foo%20bar'), 'foo%20bar')
568
569     def test_escape_url(self):
570         self.assertEqual(
571             escape_url('http://wowza.imust.org/srv/vod/telemb/new/UPLOAD/UPLOAD/20224_IncendieHavré_FD.mp4'),
572             'http://wowza.imust.org/srv/vod/telemb/new/UPLOAD/UPLOAD/20224_IncendieHavre%CC%81_FD.mp4'
573         )
574         self.assertEqual(
575             escape_url('http://www.ardmediathek.de/tv/Sturm-der-Liebe/Folge-2036-Zu-Mann-und-Frau-erklärt/Das-Erste/Video?documentId=22673108&bcastId=5290'),
576             'http://www.ardmediathek.de/tv/Sturm-der-Liebe/Folge-2036-Zu-Mann-und-Frau-erkl%C3%A4rt/Das-Erste/Video?documentId=22673108&bcastId=5290'
577         )
578         self.assertEqual(
579             escape_url('http://тест.рф/фрагмент'),
580             'http://тест.рф/%D1%84%D1%80%D0%B0%D0%B3%D0%BC%D0%B5%D0%BD%D1%82'
581         )
582         self.assertEqual(
583             escape_url('http://тест.рф/абв?абв=абв#абв'),
584             'http://тест.рф/%D0%B0%D0%B1%D0%B2?%D0%B0%D0%B1%D0%B2=%D0%B0%D0%B1%D0%B2#%D0%B0%D0%B1%D0%B2'
585         )
586         self.assertEqual(escape_url('http://vimeo.com/56015672#at=0'), 'http://vimeo.com/56015672#at=0')
587
588     def test_js_to_json_realworld(self):
589         inp = '''{
590             'clip':{'provider':'pseudo'}
591         }'''
592         self.assertEqual(js_to_json(inp), '''{
593             "clip":{"provider":"pseudo"}
594         }''')
595         json.loads(js_to_json(inp))
596
597         inp = '''{
598             'playlist':[{'controls':{'all':null}}]
599         }'''
600         self.assertEqual(js_to_json(inp), '''{
601             "playlist":[{"controls":{"all":null}}]
602         }''')
603
604         inp = '''"The CW\\'s \\'Crazy Ex-Girlfriend\\'"'''
605         self.assertEqual(js_to_json(inp), '''"The CW's 'Crazy Ex-Girlfriend'"''')
606
607         inp = '"SAND Number: SAND 2013-7800P\\nPresenter: Tom Russo\\nHabanero Software Training - Xyce Software\\nXyce, Sandia\\u0027s"'
608         json_code = js_to_json(inp)
609         self.assertEqual(json.loads(json_code), json.loads(inp))
610
611     def test_js_to_json_edgecases(self):
612         on = js_to_json("{abc_def:'1\\'\\\\2\\\\\\'3\"4'}")
613         self.assertEqual(json.loads(on), {"abc_def": "1'\\2\\'3\"4"})
614
615         on = js_to_json('{"abc": true}')
616         self.assertEqual(json.loads(on), {'abc': True})
617
618         # Ignore JavaScript code as well
619         on = js_to_json('''{
620             "x": 1,
621             y: "a",
622             z: some.code
623         }''')
624         d = json.loads(on)
625         self.assertEqual(d['x'], 1)
626         self.assertEqual(d['y'], 'a')
627
628         on = js_to_json('["abc", "def",]')
629         self.assertEqual(json.loads(on), ['abc', 'def'])
630
631         on = js_to_json('{"abc": "def",}')
632         self.assertEqual(json.loads(on), {'abc': 'def'})
633
634     def test_extract_attributes(self):
635         self.assertEqual(extract_attributes('<e x="y">'), {'x': 'y'})
636         self.assertEqual(extract_attributes("<e x='y'>"), {'x': 'y'})
637         self.assertEqual(extract_attributes('<e x=y>'), {'x': 'y'})
638         self.assertEqual(extract_attributes('<e x="a \'b\' c">'), {'x': "a 'b' c"})
639         self.assertEqual(extract_attributes('<e x=\'a "b" c\'>'), {'x': 'a "b" c'})
640         self.assertEqual(extract_attributes('<e x="&#121;">'), {'x': 'y'})
641         self.assertEqual(extract_attributes('<e x="&#x79;">'), {'x': 'y'})
642         self.assertEqual(extract_attributes('<e x="&amp;">'), {'x': '&'})  # XML
643         self.assertEqual(extract_attributes('<e x="&quot;">'), {'x': '"'})
644         self.assertEqual(extract_attributes('<e x="&pound;">'), {'x': '£'}) # HTML 3.2
645         self.assertEqual(extract_attributes('<e x="&lambda;">'), {'x': 'λ'}) # HTML 4.0
646         self.assertEqual(extract_attributes('<e x="&foo">'), {'x': '&foo'})
647         self.assertEqual(extract_attributes('<e x="\'">'), {'x': "'"})
648         self.assertEqual(extract_attributes('<e x=\'"\'>'), {'x': '"'})
649         self.assertEqual(extract_attributes('<e x >'), {'x': None})
650         self.assertEqual(extract_attributes('<e x=y a>'), {'x': 'y', 'a': None})
651         self.assertEqual(extract_attributes('<e x= y>'), {'x': 'y'})
652         self.assertEqual(extract_attributes('<e x=1 y=2 x=3>'), {'y': '2', 'x': '3'})
653         self.assertEqual(extract_attributes('<e \nx=\ny\n>'), {'x': 'y'})
654         self.assertEqual(extract_attributes('<e \nx=\n"y"\n>'), {'x': 'y'})
655         self.assertEqual(extract_attributes("<e \nx=\n'y'\n>"), {'x': 'y'})
656         self.assertEqual(extract_attributes('<e \nx="\ny\n">'), {'x': '\ny\n'})
657         self.assertEqual(extract_attributes('<e CAPS=x>'), {'caps': 'x'}) # Names lowercased
658         self.assertEqual(extract_attributes('<e x=1 X=2>'), {'x': '2'})
659         self.assertEqual(extract_attributes('<e X=1 x=2>'), {'x': '2'})
660         self.assertEqual(extract_attributes('<e _:funny-name1=1>'), {'_:funny-name1': '1'})
661         self.assertEqual(extract_attributes('<e x="Fáilte 世界 \U0001f600">'), {'x': 'Fáilte 世界 \U0001f600'})
662         self.assertEqual(extract_attributes('<e x="décompose&#769;">'), {'x': 'décompose\u0301'})
663         # "Narrow" Python builds don't support unicode code points outside BMP.
664         try:
665             compat_chr(0x10000)
666             supports_outside_bmp = True
667         except ValueError:
668             supports_outside_bmp = False
669         if supports_outside_bmp:
670             self.assertEqual(extract_attributes('<e x="Smile &#128512;!">'), {'x': 'Smile \U0001f600!'})
671
672     def test_clean_html(self):
673         self.assertEqual(clean_html('a:\nb'), 'a: b')
674         self.assertEqual(clean_html('a:\n   "b"'), 'a:    "b"')
675
676     def test_intlist_to_bytes(self):
677         self.assertEqual(
678             intlist_to_bytes([0, 1, 127, 128, 255]),
679             b'\x00\x01\x7f\x80\xff')
680
681     def test_args_to_str(self):
682         self.assertEqual(
683             args_to_str(['foo', 'ba/r', '-baz', '2 be', '']),
684             'foo ba/r -baz \'2 be\' \'\''
685         )
686
687     def test_parse_filesize(self):
688         self.assertEqual(parse_filesize(None), None)
689         self.assertEqual(parse_filesize(''), None)
690         self.assertEqual(parse_filesize('91 B'), 91)
691         self.assertEqual(parse_filesize('foobar'), None)
692         self.assertEqual(parse_filesize('2 MiB'), 2097152)
693         self.assertEqual(parse_filesize('5 GB'), 5000000000)
694         self.assertEqual(parse_filesize('1.2Tb'), 1200000000000)
695         self.assertEqual(parse_filesize('1,24 KB'), 1240)
696
697     def test_parse_count(self):
698         self.assertEqual(parse_count(None), None)
699         self.assertEqual(parse_count(''), None)
700         self.assertEqual(parse_count('0'), 0)
701         self.assertEqual(parse_count('1000'), 1000)
702         self.assertEqual(parse_count('1.000'), 1000)
703         self.assertEqual(parse_count('1.1k'), 1100)
704         self.assertEqual(parse_count('1.1kk'), 1100000)
705
706     def test_version_tuple(self):
707         self.assertEqual(version_tuple('1'), (1,))
708         self.assertEqual(version_tuple('10.23.344'), (10, 23, 344))
709         self.assertEqual(version_tuple('10.1-6'), (10, 1, 6))  # avconv style
710
711     def test_detect_exe_version(self):
712         self.assertEqual(detect_exe_version('''ffmpeg version 1.2.1
713 built on May 27 2013 08:37:26 with gcc 4.7 (Debian 4.7.3-4)
714 configuration: --prefix=/usr --extra-'''), '1.2.1')
715         self.assertEqual(detect_exe_version('''ffmpeg version N-63176-g1fb4685
716 built on May 15 2014 22:09:06 with gcc 4.8.2 (GCC)'''), 'N-63176-g1fb4685')
717         self.assertEqual(detect_exe_version('''X server found. dri2 connection failed!
718 Trying to open render node...
719 Success at /dev/dri/renderD128.
720 ffmpeg version 2.4.4 Copyright (c) 2000-2014 the FFmpeg ...'''), '2.4.4')
721
722     def test_age_restricted(self):
723         self.assertFalse(age_restricted(None, 10))  # unrestricted content
724         self.assertFalse(age_restricted(1, None))  # unrestricted policy
725         self.assertFalse(age_restricted(8, 10))
726         self.assertTrue(age_restricted(18, 14))
727         self.assertFalse(age_restricted(18, 18))
728
729     def test_is_html(self):
730         self.assertFalse(is_html(b'\x49\x44\x43<html'))
731         self.assertTrue(is_html(b'<!DOCTYPE foo>\xaaa'))
732         self.assertTrue(is_html(  # UTF-8 with BOM
733             b'\xef\xbb\xbf<!DOCTYPE foo>\xaaa'))
734         self.assertTrue(is_html(  # UTF-16-LE
735             b'\xff\xfe<\x00h\x00t\x00m\x00l\x00>\x00\xe4\x00'
736         ))
737         self.assertTrue(is_html(  # UTF-16-BE
738             b'\xfe\xff\x00<\x00h\x00t\x00m\x00l\x00>\x00\xe4'
739         ))
740         self.assertTrue(is_html(  # UTF-32-BE
741             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'))
742         self.assertTrue(is_html(  # UTF-32-LE
743             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'))
744
745     def test_render_table(self):
746         self.assertEqual(
747             render_table(
748                 ['a', 'bcd'],
749                 [[123, 4], [9999, 51]]),
750             'a    bcd\n'
751             '123  4\n'
752             '9999 51')
753
754     def test_match_str(self):
755         self.assertRaises(ValueError, match_str, 'xy>foobar', {})
756         self.assertFalse(match_str('xy', {'x': 1200}))
757         self.assertTrue(match_str('!xy', {'x': 1200}))
758         self.assertTrue(match_str('x', {'x': 1200}))
759         self.assertFalse(match_str('!x', {'x': 1200}))
760         self.assertTrue(match_str('x', {'x': 0}))
761         self.assertFalse(match_str('x>0', {'x': 0}))
762         self.assertFalse(match_str('x>0', {}))
763         self.assertTrue(match_str('x>?0', {}))
764         self.assertTrue(match_str('x>1K', {'x': 1200}))
765         self.assertFalse(match_str('x>2K', {'x': 1200}))
766         self.assertTrue(match_str('x>=1200 & x < 1300', {'x': 1200}))
767         self.assertFalse(match_str('x>=1100 & x < 1200', {'x': 1200}))
768         self.assertFalse(match_str('y=a212', {'y': 'foobar42'}))
769         self.assertTrue(match_str('y=foobar42', {'y': 'foobar42'}))
770         self.assertFalse(match_str('y!=foobar42', {'y': 'foobar42'}))
771         self.assertTrue(match_str('y!=foobar2', {'y': 'foobar42'}))
772         self.assertFalse(match_str(
773             'like_count > 100 & dislike_count <? 50 & description',
774             {'like_count': 90, 'description': 'foo'}))
775         self.assertTrue(match_str(
776             'like_count > 100 & dislike_count <? 50 & description',
777             {'like_count': 190, 'description': 'foo'}))
778         self.assertFalse(match_str(
779             'like_count > 100 & dislike_count <? 50 & description',
780             {'like_count': 190, 'dislike_count': 60, 'description': 'foo'}))
781         self.assertFalse(match_str(
782             'like_count > 100 & dislike_count <? 50 & description',
783             {'like_count': 190, 'dislike_count': 10}))
784
785     def test_parse_dfxp_time_expr(self):
786         self.assertEqual(parse_dfxp_time_expr(None), None)
787         self.assertEqual(parse_dfxp_time_expr(''), None)
788         self.assertEqual(parse_dfxp_time_expr('0.1'), 0.1)
789         self.assertEqual(parse_dfxp_time_expr('0.1s'), 0.1)
790         self.assertEqual(parse_dfxp_time_expr('00:00:01'), 1.0)
791         self.assertEqual(parse_dfxp_time_expr('00:00:01.100'), 1.1)
792         self.assertEqual(parse_dfxp_time_expr('00:00:01:100'), 1.1)
793
794     def test_dfxp2srt(self):
795         dfxp_data = '''<?xml version="1.0" encoding="UTF-8"?>
796             <tt xmlns="http://www.w3.org/ns/ttml" xml:lang="en" xmlns:tts="http://www.w3.org/ns/ttml#parameter">
797             <body>
798                 <div xml:lang="en">
799                     <p begin="0" end="1">The following line contains Chinese characters and special symbols</p>
800                     <p begin="1" end="2">第二行<br/>♪♪</p>
801                     <p begin="2" dur="1"><span>Third<br/>Line</span></p>
802                     <p begin="3" end="-1">Lines with invalid timestamps are ignored</p>
803                     <p begin="-1" end="-1">Ignore, two</p>
804                     <p begin="3" dur="-1">Ignored, three</p>
805                 </div>
806             </body>
807             </tt>'''
808         srt_data = '''1
809 00:00:00,000 --> 00:00:01,000
810 The following line contains Chinese characters and special symbols
811
812 2
813 00:00:01,000 --> 00:00:02,000
814 第二行
815 ♪♪
816
817 3
818 00:00:02,000 --> 00:00:03,000
819 Third
820 Line
821
822 '''
823         self.assertEqual(dfxp2srt(dfxp_data), srt_data)
824
825         dfxp_data_no_default_namespace = '''<?xml version="1.0" encoding="UTF-8"?>
826             <tt xml:lang="en" xmlns:tts="http://www.w3.org/ns/ttml#parameter">
827             <body>
828                 <div xml:lang="en">
829                     <p begin="0" end="1">The first line</p>
830                 </div>
831             </body>
832             </tt>'''
833         srt_data = '''1
834 00:00:00,000 --> 00:00:01,000
835 The first line
836
837 '''
838         self.assertEqual(dfxp2srt(dfxp_data_no_default_namespace), srt_data)
839
840     def test_cli_option(self):
841         self.assertEqual(cli_option({'proxy': '127.0.0.1:3128'}, '--proxy', 'proxy'), ['--proxy', '127.0.0.1:3128'])
842         self.assertEqual(cli_option({'proxy': None}, '--proxy', 'proxy'), [])
843         self.assertEqual(cli_option({}, '--proxy', 'proxy'), [])
844
845     def test_cli_valueless_option(self):
846         self.assertEqual(cli_valueless_option(
847             {'downloader': 'external'}, '--external-downloader', 'downloader', 'external'), ['--external-downloader'])
848         self.assertEqual(cli_valueless_option(
849             {'downloader': 'internal'}, '--external-downloader', 'downloader', 'external'), [])
850         self.assertEqual(cli_valueless_option(
851             {'nocheckcertificate': True}, '--no-check-certificate', 'nocheckcertificate'), ['--no-check-certificate'])
852         self.assertEqual(cli_valueless_option(
853             {'nocheckcertificate': False}, '--no-check-certificate', 'nocheckcertificate'), [])
854         self.assertEqual(cli_valueless_option(
855             {'checkcertificate': True}, '--no-check-certificate', 'checkcertificate', False), [])
856         self.assertEqual(cli_valueless_option(
857             {'checkcertificate': False}, '--no-check-certificate', 'checkcertificate', False), ['--no-check-certificate'])
858
859     def test_cli_bool_option(self):
860         self.assertEqual(
861             cli_bool_option(
862                 {'nocheckcertificate': True}, '--no-check-certificate', 'nocheckcertificate'),
863             ['--no-check-certificate', 'true'])
864         self.assertEqual(
865             cli_bool_option(
866                 {'nocheckcertificate': True}, '--no-check-certificate', 'nocheckcertificate', separator='='),
867             ['--no-check-certificate=true'])
868         self.assertEqual(
869             cli_bool_option(
870                 {'nocheckcertificate': True}, '--check-certificate', 'nocheckcertificate', 'false', 'true'),
871             ['--check-certificate', 'false'])
872         self.assertEqual(
873             cli_bool_option(
874                 {'nocheckcertificate': True}, '--check-certificate', 'nocheckcertificate', 'false', 'true', '='),
875             ['--check-certificate=false'])
876         self.assertEqual(
877             cli_bool_option(
878                 {'nocheckcertificate': False}, '--check-certificate', 'nocheckcertificate', 'false', 'true'),
879             ['--check-certificate', 'true'])
880         self.assertEqual(
881             cli_bool_option(
882                 {'nocheckcertificate': False}, '--check-certificate', 'nocheckcertificate', 'false', 'true', '='),
883             ['--check-certificate=true'])
884
885     def test_ohdave_rsa_encrypt(self):
886         N = 0xab86b6371b5318aaa1d3c9e612a9f1264f372323c8c0f19875b5fc3b3fd3afcc1e5bec527aa94bfa85bffc157e4245aebda05389a5357b75115ac94f074aefcd
887         e = 65537
888
889         self.assertEqual(
890             ohdave_rsa_encrypt(b'aa111222', e, N),
891             '726664bd9a23fd0c70f9f1b84aab5e3905ce1e45a584e9cbcf9bcc7510338fc1986d6c599ff990d923aa43c51c0d9013cd572e13bc58f4ae48f2ed8c0b0ba881')
892
893     def test_encode_base_n(self):
894         self.assertEqual(encode_base_n(0, 30), '0')
895         self.assertEqual(encode_base_n(80, 30), '2k')
896
897         custom_table = '9876543210ZYXWVUTSRQPONMLKJIHGFEDCBA'
898         self.assertEqual(encode_base_n(0, 30, custom_table), '9')
899         self.assertEqual(encode_base_n(80, 30, custom_table), '7P')
900
901         self.assertRaises(ValueError, encode_base_n, 0, 70)
902         self.assertRaises(ValueError, encode_base_n, 0, 60, custom_table)
903
904 if __name__ == '__main__':
905     unittest.main()