zolfa
/
youtube-dl

#!/usr/bin/env python# coding: utf-8
from __future__ import unicode_literals
# Allow direct executionimport osimport sysimport unittestsys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))

# Various small unit testsimport ioimport jsonimport xml.etree.ElementTree
from youtube_dl.utils import (    age_restricted,    args_to_str,    encode_base_n,    clean_html,    date_from_str,    DateRange,    detect_exe_version,    determine_ext,    dict_get,    encode_compat_str,    encodeFilename,    escape_rfc3986,    escape_url,    extract_attributes,    ExtractorError,    find_xpath_attr,    fix_xml_ampersands,    get_element_by_class,    InAdvancePagedList,    intlist_to_bytes,    is_html,    js_to_json,    limit_length,    mimetype2ext,    month_by_name,    ohdave_rsa_encrypt,    OnDemandPagedList,    orderedSet,    parse_age_limit,    parse_duration,    parse_filesize,    parse_count,    parse_iso8601,    read_batch_urls,    sanitize_filename,    sanitize_path,    prepend_extension,    replace_extension,    remove_start,    remove_end,    remove_quotes,    shell_quote,    smuggle_url,    str_to_int,    strip_jsonp,    timeconvert,    unescapeHTML,    unified_strdate,    unified_timestamp,    unsmuggle_url,    uppercase_escape,    lowercase_escape,    url_basename,    urlencode_postdata,    urshift,    update_url_query,    version_tuple,    xpath_with_ns,    xpath_element,    xpath_text,    xpath_attr,    render_table,    match_str,    parse_dfxp_time_expr,    dfxp2srt,    cli_option,    cli_valueless_option,    cli_bool_option,    parse_codecs,)from youtube_dl.compat import (    compat_chr,    compat_etree_fromstring,    compat_urlparse,    compat_parse_qs,)

class TestUtil(unittest.TestCase):    def test_timeconvert(self):        self.assertTrue(timeconvert('') is None)        self.assertTrue(timeconvert('bougrg') is None)
    def test_sanitize_filename(self):        self.assertEqual(sanitize_filename('abc'), 'abc')        self.assertEqual(sanitize_filename('abc_d-e'), 'abc_d-e')
        self.assertEqual(sanitize_filename('123'), '123')
        self.assertEqual('abc_de', sanitize_filename('abc/de'))        self.assertFalse('/' in sanitize_filename('abc/de///'))
        self.assertEqual('abc_de', sanitize_filename('abc/<>\\*|de'))        self.assertEqual('xxx', sanitize_filename('xxx/<>\\*|'))        self.assertEqual('yes no', sanitize_filename('yes? no'))        self.assertEqual('this - that', sanitize_filename('this: that'))
        self.assertEqual(sanitize_filename('AT&T'), 'AT&T')        aumlaut = 'ä'        self.assertEqual(sanitize_filename(aumlaut), aumlaut)        tests = '\u043a\u0438\u0440\u0438\u043b\u043b\u0438\u0446\u0430'        self.assertEqual(sanitize_filename(tests), tests)
        self.assertEqual(            sanitize_filename('New World record at 0:12:34'),            'New World record at 0_12_34')
        self.assertEqual(sanitize_filename('--gasdgf'), '_-gasdgf')        self.assertEqual(sanitize_filename('--gasdgf', is_id=True), '--gasdgf')        self.assertEqual(sanitize_filename('.gasdgf'), 'gasdgf')        self.assertEqual(sanitize_filename('.gasdgf', is_id=True), '.gasdgf')
        forbidden = '"\0\\/'        for fc in forbidden:            for fbc in forbidden:                self.assertTrue(fbc not in sanitize_filename(fc))
    def test_sanitize_filename_restricted(self):        self.assertEqual(sanitize_filename('abc', restricted=True), 'abc')        self.assertEqual(sanitize_filename('abc_d-e', restricted=True), 'abc_d-e')
        self.assertEqual(sanitize_filename('123', restricted=True), '123')
        self.assertEqual('abc_de', sanitize_filename('abc/de', restricted=True))        self.assertFalse('/' in sanitize_filename('abc/de///', restricted=True))
        self.assertEqual('abc_de', sanitize_filename('abc/<>\\*|de', restricted=True))        self.assertEqual('xxx', sanitize_filename('xxx/<>\\*|', restricted=True))        self.assertEqual('yes_no', sanitize_filename('yes? no', restricted=True))        self.assertEqual('this_-_that', sanitize_filename('this: that', restricted=True))
        tests = 'aäb\u4e2d\u56fd\u7684c'        self.assertEqual(sanitize_filename(tests, restricted=True), 'aab_c')        self.assertTrue(sanitize_filename('\xf6', restricted=True) != '')  # No empty filename
        forbidden = '"\0\\/&!: \'\t\n()[]{}$;`^,#'        for fc in forbidden:            for fbc in forbidden:                self.assertTrue(fbc not in sanitize_filename(fc, restricted=True))
        # Handle a common case more neatly        self.assertEqual(sanitize_filename('\u5927\u58f0\u5e26 - Song', restricted=True), 'Song')        self.assertEqual(sanitize_filename('\u603b\u7edf: Speech', restricted=True), 'Speech')        # .. but make sure the file name is never empty        self.assertTrue(sanitize_filename('-', restricted=True) != '')        self.assertTrue(sanitize_filename(':', restricted=True) != '')
        self.assertEqual(sanitize_filename(            'ÂÃÄÀÁÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖŐØŒÙÚÛÜŰÝÞßàáâãäåæçèéêëìíîïðñòóôõöőøœùúûüűýþÿ', restricted=True),            'AAAAAAAECEEEEIIIIDNOOOOOOOOEUUUUUYPssaaaaaaaeceeeeiiiionooooooooeuuuuuypy')
    def test_sanitize_ids(self):        self.assertEqual(sanitize_filename('_n_cd26wFpw', is_id=True), '_n_cd26wFpw')        self.assertEqual(sanitize_filename('_BD_eEpuzXw', is_id=True), '_BD_eEpuzXw')        self.assertEqual(sanitize_filename('N0Y__7-UOdI', is_id=True), 'N0Y__7-UOdI')
    def test_sanitize_path(self):        if sys.platform != 'win32':            return
        self.assertEqual(sanitize_path('abc'), 'abc')        self.assertEqual(sanitize_path('abc/def'), 'abc\\def')        self.assertEqual(sanitize_path('abc\\def'), 'abc\\def')        self.assertEqual(sanitize_path('abc|def'), 'abc#def')        self.assertEqual(sanitize_path('<>:"|?*'), '#######')        self.assertEqual(sanitize_path('C:/abc/def'), 'C:\\abc\\def')        self.assertEqual(sanitize_path('C?:/abc/def'), 'C##\\abc\\def')
        self.assertEqual(sanitize_path('\\\\?\\UNC\\ComputerName\\abc'), '\\\\?\\UNC\\ComputerName\\abc')        self.assertEqual(sanitize_path('\\\\?\\UNC/ComputerName/abc'), '\\\\?\\UNC\\ComputerName\\abc')
        self.assertEqual(sanitize_path('\\\\?\\C:\\abc'), '\\\\?\\C:\\abc')        self.assertEqual(sanitize_path('\\\\?\\C:/abc'), '\\\\?\\C:\\abc')        self.assertEqual(sanitize_path('\\\\?\\C:\\ab?c\\de:f'), '\\\\?\\C:\\ab#c\\de#f')        self.assertEqual(sanitize_path('\\\\?\\C:\\abc'), '\\\\?\\C:\\abc')
        self.assertEqual(            sanitize_path('youtube/%(uploader)s/%(autonumber)s-%(title)s-%(upload_date)s.%(ext)s'),            'youtube\\%(uploader)s\\%(autonumber)s-%(title)s-%(upload_date)s.%(ext)s')
        self.assertEqual(            sanitize_path('youtube/TheWreckingYard ./00001-Not bad, Especially for Free! (1987 Yamaha 700)-20141116.mp4.part'),            'youtube\\TheWreckingYard #\\00001-Not bad, Especially for Free! (1987 Yamaha 700)-20141116.mp4.part')        self.assertEqual(sanitize_path('abc/def...'), 'abc\\def..#')        self.assertEqual(sanitize_path('abc.../def'), 'abc..#\\def')        self.assertEqual(sanitize_path('abc.../def...'), 'abc..#\\def..#')
        self.assertEqual(sanitize_path('../abc'), '..\\abc')        self.assertEqual(sanitize_path('../../abc'), '..\\..\\abc')        self.assertEqual(sanitize_path('./abc'), 'abc')        self.assertEqual(sanitize_path('./../abc'), '..\\abc')
    def test_prepend_extension(self):        self.assertEqual(prepend_extension('abc.ext', 'temp'), 'abc.temp.ext')        self.assertEqual(prepend_extension('abc.ext', 'temp', 'ext'), 'abc.temp.ext')        self.assertEqual(prepend_extension('abc.unexpected_ext', 'temp', 'ext'), 'abc.unexpected_ext.temp')        self.assertEqual(prepend_extension('abc', 'temp'), 'abc.temp')        self.assertEqual(prepend_extension('.abc', 'temp'), '.abc.temp')        self.assertEqual(prepend_extension('.abc.ext', 'temp'), '.abc.temp.ext')
    def test_replace_extension(self):        self.assertEqual(replace_extension('abc.ext', 'temp'), 'abc.temp')        self.assertEqual(replace_extension('abc.ext', 'temp', 'ext'), 'abc.temp')        self.assertEqual(replace_extension('abc.unexpected_ext', 'temp', 'ext'), 'abc.unexpected_ext.temp')        self.assertEqual(replace_extension('abc', 'temp'), 'abc.temp')        self.assertEqual(replace_extension('.abc', 'temp'), '.abc.temp')        self.assertEqual(replace_extension('.abc.ext', 'temp'), '.abc.temp')
    def test_remove_start(self):        self.assertEqual(remove_start(None, 'A - '), None)        self.assertEqual(remove_start('A - B', 'A - '), 'B')        self.assertEqual(remove_start('B - A', 'A - '), 'B - A')
    def test_remove_end(self):        self.assertEqual(remove_end(None, ' - B'), None)        self.assertEqual(remove_end('A - B', ' - B'), 'A')        self.assertEqual(remove_end('B - A', ' - B'), 'B - A')
    def test_remove_quotes(self):        self.assertEqual(remove_quotes(None), None)        self.assertEqual(remove_quotes('"'), '"')        self.assertEqual(remove_quotes("'"), "'")        self.assertEqual(remove_quotes(';'), ';')        self.assertEqual(remove_quotes('";'), '";')        self.assertEqual(remove_quotes('""'), '')        self.assertEqual(remove_quotes('";"'), ';')
    def test_ordered_set(self):        self.assertEqual(orderedSet([1, 1, 2, 3, 4, 4, 5, 6, 7, 3, 5]), [1, 2, 3, 4, 5, 6, 7])        self.assertEqual(orderedSet([]), [])        self.assertEqual(orderedSet([1]), [1])        # keep the list ordered        self.assertEqual(orderedSet([135, 1, 1, 1]), [135, 1])
    def test_unescape_html(self):        self.assertEqual(unescapeHTML('%20;'), '%20;')        self.assertEqual(unescapeHTML('&#x2F;'), '/')        self.assertEqual(unescapeHTML('&#47;'), '/')        self.assertEqual(unescapeHTML('&eacute;'), 'é')        self.assertEqual(unescapeHTML('&#2013266066;'), '&#2013266066;')        # HTML5 entities        self.assertEqual(unescapeHTML('&period;&apos;'), '.\'')
    def test_date_from_str(self):        self.assertEqual(date_from_str('yesterday'), date_from_str('now-1day'))        self.assertEqual(date_from_str('now+7day'), date_from_str('now+1week'))        self.assertEqual(date_from_str('now+14day'), date_from_str('now+2week'))        self.assertEqual(date_from_str('now+365day'), date_from_str('now+1year'))        self.assertEqual(date_from_str('now+30day'), date_from_str('now+1month'))
    def test_daterange(self):        _20century = DateRange("19000101", "20000101")        self.assertFalse("17890714" in _20century)        _ac = DateRange("00010101")        self.assertTrue("19690721" in _ac)        _firstmilenium = DateRange(end="10000101")        self.assertTrue("07110427" in _firstmilenium)
    def test_unified_dates(self):        self.assertEqual(unified_strdate('December 21, 2010'), '20101221')        self.assertEqual(unified_strdate('8/7/2009'), '20090708')        self.assertEqual(unified_strdate('Dec 14, 2012'), '20121214')        self.assertEqual(unified_strdate('2012/10/11 01:56:38 +0000'), '20121011')        self.assertEqual(unified_strdate('1968 12 10'), '19681210')        self.assertEqual(unified_strdate('1968-12-10'), '19681210')        self.assertEqual(unified_strdate('28/01/2014 21:00:00 +0100'), '20140128')        self.assertEqual(            unified_strdate('11/26/2014 11:30:00 AM PST', day_first=False),            '20141126')        self.assertEqual(            unified_strdate('2/2/2015 6:47:40 PM', day_first=False),            '20150202')        self.assertEqual(unified_strdate('Feb 14th 2016 5:45PM'), '20160214')        self.assertEqual(unified_strdate('25-09-2014'), '20140925')        self.assertEqual(unified_strdate('27.02.2016 17:30'), '20160227')        self.assertEqual(unified_strdate('UNKNOWN DATE FORMAT'), None)
    def test_unified_timestamps(self):        self.assertEqual(unified_timestamp('December 21, 2010'), 1292889600)        self.assertEqual(unified_timestamp('8/7/2009'), 1247011200)        self.assertEqual(unified_timestamp('Dec 14, 2012'), 1355443200)        self.assertEqual(unified_timestamp('2012/10/11 01:56:38 +0000'), 1349920598)        self.assertEqual(unified_timestamp('1968 12 10'), -33436800)        self.assertEqual(unified_timestamp('1968-12-10'), -33436800)        self.assertEqual(unified_timestamp('28/01/2014 21:00:00 +0100'), 1390939200)        self.assertEqual(            unified_timestamp('11/26/2014 11:30:00 AM PST', day_first=False),            1417001400)        self.assertEqual(            unified_timestamp('2/2/2015 6:47:40 PM', day_first=False),            1422902860)        self.assertEqual(unified_timestamp('Feb 14th 2016 5:45PM'), 1455471900)        self.assertEqual(unified_timestamp('25-09-2014'), 1411603200)        self.assertEqual(unified_timestamp('27.02.2016 17:30'), 1456594200)        self.assertEqual(unified_timestamp('UNKNOWN DATE FORMAT'), None)        self.assertEqual(unified_timestamp('May 16, 2016 11:15 PM'), 1463440500)
    def test_determine_ext(self):        self.assertEqual(determine_ext('http://example.com/foo/bar.mp4/?download'), 'mp4')        self.assertEqual(determine_ext('http://example.com/foo/bar/?download', None), None)        self.assertEqual(determine_ext('http://example.com/foo/bar.nonext/?download', None), None)        self.assertEqual(determine_ext('http://example.com/foo/bar/mp4?download', None), None)        self.assertEqual(determine_ext('http://example.com/foo/bar.m3u8//?download'), 'm3u8')
    def test_find_xpath_attr(self):        testxml = '''<root>
            <node/>            <node x="a"/>            <node x="a" y="c" />            <node x="b" y="d" />            <node x="" />        </root>'''
        doc = compat_etree_fromstring(testxml)
        self.assertEqual(find_xpath_attr(doc, './/fourohfour', 'n'), None)        self.assertEqual(find_xpath_attr(doc, './/fourohfour', 'n', 'v'), None)        self.assertEqual(find_xpath_attr(doc, './/node', 'n'), None)        self.assertEqual(find_xpath_attr(doc, './/node', 'n', 'v'), None)        self.assertEqual(find_xpath_attr(doc, './/node', 'x'), doc[1])        self.assertEqual(find_xpath_attr(doc, './/node', 'x', 'a'), doc[1])        self.assertEqual(find_xpath_attr(doc, './/node', 'x', 'b'), doc[3])        self.assertEqual(find_xpath_attr(doc, './/node', 'y'), doc[2])        self.assertEqual(find_xpath_attr(doc, './/node', 'y', 'c'), doc[2])        self.assertEqual(find_xpath_attr(doc, './/node', 'y', 'd'), doc[3])        self.assertEqual(find_xpath_attr(doc, './/node', 'x', ''), doc[4])
    def test_xpath_with_ns(self):        testxml = '''<root xmlns:media="http://example.com/">
            <media:song>                <media:author>The Author</media:author>                <url>http://server.com/download.mp3</url>            </media:song>        </root>'''
        doc = compat_etree_fromstring(testxml)        find = lambda p: doc.find(xpath_with_ns(p, {'media': 'http://example.com/'}))        self.assertTrue(find('media:song') is not None)        self.assertEqual(find('media:song/media:author').text, 'The Author')        self.assertEqual(find('media:song/url').text, 'http://server.com/download.mp3')
    def test_xpath_element(self):        doc = xml.etree.ElementTree.Element('root')        div = xml.etree.ElementTree.SubElement(doc, 'div')        p = xml.etree.ElementTree.SubElement(div, 'p')        p.text = 'Foo'        self.assertEqual(xpath_element(doc, 'div/p'), p)        self.assertEqual(xpath_element(doc, ['div/p']), p)        self.assertEqual(xpath_element(doc, ['div/bar', 'div/p']), p)        self.assertEqual(xpath_element(doc, 'div/bar', default='default'), 'default')        self.assertEqual(xpath_element(doc, ['div/bar'], default='default'), 'default')        self.assertTrue(xpath_element(doc, 'div/bar') is None)        self.assertTrue(xpath_element(doc, ['div/bar']) is None)        self.assertTrue(xpath_element(doc, ['div/bar'], 'div/baz') is None)        self.assertRaises(ExtractorError, xpath_element, doc, 'div/bar', fatal=True)        self.assertRaises(ExtractorError, xpath_element, doc, ['div/bar'], fatal=True)        self.assertRaises(ExtractorError, xpath_element, doc, ['div/bar', 'div/baz'], fatal=True)
    def test_xpath_text(self):        testxml = '''<root>
            <div>                <p>Foo</p>            </div>        </root>'''
        doc = compat_etree_fromstring(testxml)        self.assertEqual(xpath_text(doc, 'div/p'), 'Foo')        self.assertEqual(xpath_text(doc, 'div/bar', default='default'), 'default')        self.assertTrue(xpath_text(doc, 'div/bar') is None)        self.assertRaises(ExtractorError, xpath_text, doc, 'div/bar', fatal=True)
    def test_xpath_attr(self):        testxml = '''<root>
            <div>                <p x="a">Foo</p>            </div>        </root>'''
        doc = compat_etree_fromstring(testxml)        self.assertEqual(xpath_attr(doc, 'div/p', 'x'), 'a')        self.assertEqual(xpath_attr(doc, 'div/bar', 'x'), None)        self.assertEqual(xpath_attr(doc, 'div/p', 'y'), None)        self.assertEqual(xpath_attr(doc, 'div/bar', 'x', default='default'), 'default')        self.assertEqual(xpath_attr(doc, 'div/p', 'y', default='default'), 'default')        self.assertRaises(ExtractorError, xpath_attr, doc, 'div/bar', 'x', fatal=True)        self.assertRaises(ExtractorError, xpath_attr, doc, 'div/p', 'y', fatal=True)
    def test_smuggle_url(self):        data = {"ö": "ö", "abc": [3]}        url = 'https://foo.bar/baz?x=y#a'        smug_url = smuggle_url(url, data)        unsmug_url, unsmug_data = unsmuggle_url(smug_url)        self.assertEqual(url, unsmug_url)        self.assertEqual(data, unsmug_data)
        res_url, res_data = unsmuggle_url(url)        self.assertEqual(res_url, url)        self.assertEqual(res_data, None)
        smug_url = smuggle_url(url, {'a': 'b'})        smug_smug_url = smuggle_url(smug_url, {'c': 'd'})        res_url, res_data = unsmuggle_url(smug_smug_url)        self.assertEqual(res_url, url)        self.assertEqual(res_data, {'a': 'b', 'c': 'd'})
    def test_shell_quote(self):        args = ['ffmpeg', '-i', encodeFilename('ñ€ß\'.mp4')]        self.assertEqual(shell_quote(args), """ffmpeg -i 'ñ€ß'"'"'.mp4'""")
    def test_str_to_int(self):        self.assertEqual(str_to_int('123,456'), 123456)        self.assertEqual(str_to_int('123.456'), 123456)
    def test_url_basename(self):        self.assertEqual(url_basename('http://foo.de/'), '')        self.assertEqual(url_basename('http://foo.de/bar/baz'), 'baz')        self.assertEqual(url_basename('http://foo.de/bar/baz?x=y'), 'baz')        self.assertEqual(url_basename('http://foo.de/bar/baz#x=y'), 'baz')        self.assertEqual(url_basename('http://foo.de/bar/baz/'), 'baz')        self.assertEqual(            url_basename('http://media.w3.org/2010/05/sintel/trailer.mp4'),            'trailer.mp4')
    def test_parse_age_limit(self):        self.assertEqual(parse_age_limit(None), None)        self.assertEqual(parse_age_limit(False), None)        self.assertEqual(parse_age_limit('invalid'), None)        self.assertEqual(parse_age_limit(0), 0)        self.assertEqual(parse_age_limit(18), 18)        self.assertEqual(parse_age_limit(21), 21)        self.assertEqual(parse_age_limit(22), None)        self.assertEqual(parse_age_limit('18'), 18)        self.assertEqual(parse_age_limit('18+'), 18)        self.assertEqual(parse_age_limit('PG-13'), 13)        self.assertEqual(parse_age_limit('TV-14'), 14)        self.assertEqual(parse_age_limit('TV-MA'), 17)
    def test_parse_duration(self):        self.assertEqual(parse_duration(None), None)        self.assertEqual(parse_duration(False), None)        self.assertEqual(parse_duration('invalid'), None)        self.assertEqual(parse_duration('1'), 1)        self.assertEqual(parse_duration('1337:12'), 80232)        self.assertEqual(parse_duration('9:12:43'), 33163)        self.assertEqual(parse_duration('12:00'), 720)        self.assertEqual(parse_duration('00:01:01'), 61)        self.assertEqual(parse_duration('x:y'), None)        self.assertEqual(parse_duration('3h11m53s'), 11513)        self.assertEqual(parse_duration('3h 11m 53s'), 11513)        self.assertEqual(parse_duration('3 hours 11 minutes 53 seconds'), 11513)        self.assertEqual(parse_duration('3 hours 11 mins 53 secs'), 11513)        self.assertEqual(parse_duration('62m45s'), 3765)        self.assertEqual(parse_duration('6m59s'), 419)        self.assertEqual(parse_duration('49s'), 49)        self.assertEqual(parse_duration('0h0m0s'), 0)        self.assertEqual(parse_duration('0m0s'), 0)        self.assertEqual(parse_duration('0s'), 0)        self.assertEqual(parse_duration('01:02:03.05'), 3723.05)        self.assertEqual(parse_duration('T30M38S'), 1838)        self.assertEqual(parse_duration('5 s'), 5)        self.assertEqual(parse_duration('3 min'), 180)        self.assertEqual(parse_duration('2.5 hours'), 9000)        self.assertEqual(parse_duration('02:03:04'), 7384)        self.assertEqual(parse_duration('01:02:03:04'), 93784)        self.assertEqual(parse_duration('1 hour 3 minutes'), 3780)        self.assertEqual(parse_duration('87 Min.'), 5220)        self.assertEqual(parse_duration('PT1H0.040S'), 3600.04)
    def test_fix_xml_ampersands(self):        self.assertEqual(            fix_xml_ampersands('"&x=y&z=a'), '"&amp;x=y&amp;z=a')        self.assertEqual(            fix_xml_ampersands('"&amp;x=y&wrong;&z=a'),            '"&amp;x=y&amp;wrong;&amp;z=a')        self.assertEqual(            fix_xml_ampersands('&amp;&apos;&gt;&lt;&quot;'),            '&amp;&apos;&gt;&lt;&quot;')        self.assertEqual(            fix_xml_ampersands('&#1234;&#x1abC;'), '&#1234;&#x1abC;')        self.assertEqual(fix_xml_ampersands('&#&#'), '&amp;#&amp;#')
    def test_paged_list(self):        def testPL(size, pagesize, sliceargs, expected):            def get_page(pagenum):                firstid = pagenum * pagesize                upto = min(size, pagenum * pagesize + pagesize)                for i in range(firstid, upto):                    yield i
            pl = OnDemandPagedList(get_page, pagesize)            got = pl.getslice(*sliceargs)            self.assertEqual(got, expected)
            iapl = InAdvancePagedList(get_page, size // pagesize + 1, pagesize)            got = iapl.getslice(*sliceargs)            self.assertEqual(got, expected)
        testPL(5, 2, (), [0, 1, 2, 3, 4])        testPL(5, 2, (1,), [1, 2, 3, 4])        testPL(5, 2, (2,), [2, 3, 4])        testPL(5, 2, (4,), [4])        testPL(5, 2, (0, 3), [0, 1, 2])        testPL(5, 2, (1, 4), [1, 2, 3])        testPL(5, 2, (2, 99), [2, 3, 4])        testPL(5, 2, (20, 99), [])
    def test_read_batch_urls(self):        f = io.StringIO('''\xef\xbb\xbf foo
            bar\r            baz            # More after this line\r            ; or after this            bam''')
        self.assertEqual(read_batch_urls(f), ['foo', 'bar', 'baz', 'bam'])
    def test_urlencode_postdata(self):        data = urlencode_postdata({'username': 'foo@bar.com', 'password': '1234'})        self.assertTrue(isinstance(data, bytes))
    def test_update_url_query(self):        def query_dict(url):            return compat_parse_qs(compat_urlparse.urlparse(url).query)        self.assertEqual(query_dict(update_url_query(            'http://example.com/path', {'quality': ['HD'], 'format': ['mp4']})),            query_dict('http://example.com/path?quality=HD&format=mp4'))        self.assertEqual(query_dict(update_url_query(            'http://example.com/path', {'system': ['LINUX', 'WINDOWS']})),            query_dict('http://example.com/path?system=LINUX&system=WINDOWS'))        self.assertEqual(query_dict(update_url_query(            'http://example.com/path', {'fields': 'id,formats,subtitles'})),            query_dict('http://example.com/path?fields=id,formats,subtitles'))        self.assertEqual(query_dict(update_url_query(            'http://example.com/path', {'fields': ('id,formats,subtitles', 'thumbnails')})),            query_dict('http://example.com/path?fields=id,formats,subtitles&fields=thumbnails'))        self.assertEqual(query_dict(update_url_query(            'http://example.com/path?manifest=f4m', {'manifest': []})),            query_dict('http://example.com/path'))        self.assertEqual(query_dict(update_url_query(            'http://example.com/path?system=LINUX&system=WINDOWS', {'system': 'LINUX'})),            query_dict('http://example.com/path?system=LINUX'))        self.assertEqual(query_dict(update_url_query(            'http://example.com/path', {'fields': b'id,formats,subtitles'})),            query_dict('http://example.com/path?fields=id,formats,subtitles'))        self.assertEqual(query_dict(update_url_query(            'http://example.com/path', {'width': 1080, 'height': 720})),            query_dict('http://example.com/path?width=1080&height=720'))        self.assertEqual(query_dict(update_url_query(            'http://example.com/path', {'bitrate': 5020.43})),            query_dict('http://example.com/path?bitrate=5020.43'))        self.assertEqual(query_dict(update_url_query(            'http://example.com/path', {'test': '第二行тест'})),            query_dict('http://example.com/path?test=%E7%AC%AC%E4%BA%8C%E8%A1%8C%D1%82%D0%B5%D1%81%D1%82'))
    def test_dict_get(self):        FALSE_VALUES = {            'none': None,            'false': False,            'zero': 0,            'empty_string': '',            'empty_list': [],        }        d = FALSE_VALUES.copy()        d['a'] = 42        self.assertEqual(dict_get(d, 'a'), 42)        self.assertEqual(dict_get(d, 'b'), None)        self.assertEqual(dict_get(d, 'b', 42), 42)        self.assertEqual(dict_get(d, ('a', )), 42)        self.assertEqual(dict_get(d, ('b', 'a', )), 42)        self.assertEqual(dict_get(d, ('b', 'c', 'a', 'd', )), 42)        self.assertEqual(dict_get(d, ('b', 'c', )), None)        self.assertEqual(dict_get(d, ('b', 'c', ), 42), 42)        for key, false_value in FALSE_VALUES.items():            self.assertEqual(dict_get(d, ('b', 'c', key, )), None)            self.assertEqual(dict_get(d, ('b', 'c', key, ), skip_false_values=False), false_value)
    def test_encode_compat_str(self):        self.assertEqual(encode_compat_str(b'\xd1\x82\xd0\xb5\xd1\x81\xd1\x82', 'utf-8'), 'тест')        self.assertEqual(encode_compat_str('тест', 'utf-8'), 'тест')
    def test_parse_iso8601(self):        self.assertEqual(parse_iso8601('2014-03-23T23:04:26+0100'), 1395612266)        self.assertEqual(parse_iso8601('2014-03-23T22:04:26+0000'), 1395612266)        self.assertEqual(parse_iso8601('2014-03-23T22:04:26Z'), 1395612266)        self.assertEqual(parse_iso8601('2014-03-23T22:04:26.1234Z'), 1395612266)        self.assertEqual(parse_iso8601('2015-09-29T08:27:31.727'), 1443515251)        self.assertEqual(parse_iso8601('2015-09-29T08-27-31.727'), None)
    def test_strip_jsonp(self):        stripped = strip_jsonp('cb ([ {"id":"532cb",\n\n\n"x":\n3}\n]\n);')        d = json.loads(stripped)        self.assertEqual(d, [{"id": "532cb", "x": 3}])
        stripped = strip_jsonp('parseMetadata({"STATUS":"OK"})\n\n\n//epc')        d = json.loads(stripped)        self.assertEqual(d, {'STATUS': 'OK'})
        stripped = strip_jsonp('ps.embedHandler({"status": "success"});')        d = json.loads(stripped)        self.assertEqual(d, {'status': 'success'})
    def test_uppercase_escape(self):        self.assertEqual(uppercase_escape('aä'), 'aä')        self.assertEqual(uppercase_escape('\\U0001d550'), '𝕐')
    def test_lowercase_escape(self):        self.assertEqual(lowercase_escape('aä'), 'aä')        self.assertEqual(lowercase_escape('\\u0026'), '&')
    def test_limit_length(self):        self.assertEqual(limit_length(None, 12), None)        self.assertEqual(limit_length('foo', 12), 'foo')        self.assertTrue(            limit_length('foo bar baz asd', 12).startswith('foo bar'))        self.assertTrue('...' in limit_length('foo bar baz asd', 12))
    def test_mimetype2ext(self):        self.assertEqual(mimetype2ext(None), None)        self.assertEqual(mimetype2ext('video/x-flv'), 'flv')        self.assertEqual(mimetype2ext('application/x-mpegURL'), 'm3u8')        self.assertEqual(mimetype2ext('text/vtt'), 'vtt')        self.assertEqual(mimetype2ext('text/vtt;charset=utf-8'), 'vtt')        self.assertEqual(mimetype2ext('text/html; charset=utf-8'), 'html')
    def test_month_by_name(self):        self.assertEqual(month_by_name(None), None)        self.assertEqual(month_by_name('December', 'en'), 12)        self.assertEqual(month_by_name('décembre', 'fr'), 12)        self.assertEqual(month_by_name('December'), 12)        self.assertEqual(month_by_name('décembre'), None)        self.assertEqual(month_by_name('Unknown', 'unknown'), None)
    def test_parse_codecs(self):        self.assertEqual(parse_codecs(''), {})        self.assertEqual(parse_codecs('avc1.77.30, mp4a.40.2'), {            'vcodec': 'avc1.77.30',            'acodec': 'mp4a.40.2',        })        self.assertEqual(parse_codecs('mp4a.40.2'), {            'vcodec': 'none',            'acodec': 'mp4a.40.2',        })        self.assertEqual(parse_codecs('mp4a.40.5,avc1.42001e'), {            'vcodec': 'avc1.42001e',            'acodec': 'mp4a.40.5',        })        self.assertEqual(parse_codecs('avc3.640028'), {            'vcodec': 'avc3.640028',            'acodec': 'none',        })        self.assertEqual(parse_codecs(', h264,,newcodec,aac'), {            'vcodec': 'h264',            'acodec': 'aac',        })
    def test_escape_rfc3986(self):        reserved = "!*'();:@&=+$,/?#[]"        unreserved = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_.~'        self.assertEqual(escape_rfc3986(reserved), reserved)        self.assertEqual(escape_rfc3986(unreserved), unreserved)        self.assertEqual(escape_rfc3986('тест'), '%D1%82%D0%B5%D1%81%D1%82')        self.assertEqual(escape_rfc3986('%D1%82%D0%B5%D1%81%D1%82'), '%D1%82%D0%B5%D1%81%D1%82')        self.assertEqual(escape_rfc3986('foo bar'), 'foo%20bar')        self.assertEqual(escape_rfc3986('foo%20bar'), 'foo%20bar')
    def test_escape_url(self):        self.assertEqual(            escape_url('http://wowza.imust.org/srv/vod/telemb/new/UPLOAD/UPLOAD/20224_IncendieHavré_FD.mp4'),            'http://wowza.imust.org/srv/vod/telemb/new/UPLOAD/UPLOAD/20224_IncendieHavre%CC%81_FD.mp4'        )        self.assertEqual(            escape_url('http://www.ardmediathek.de/tv/Sturm-der-Liebe/Folge-2036-Zu-Mann-und-Frau-erklärt/Das-Erste/Video?documentId=22673108&bcastId=5290'),            'http://www.ardmediathek.de/tv/Sturm-der-Liebe/Folge-2036-Zu-Mann-und-Frau-erkl%C3%A4rt/Das-Erste/Video?documentId=22673108&bcastId=5290'        )        self.assertEqual(            escape_url('http://тест.рф/фрагмент'),            'http://xn--e1aybc.xn--p1ai/%D1%84%D1%80%D0%B0%D0%B3%D0%BC%D0%B5%D0%BD%D1%82'        )        self.assertEqual(            escape_url('http://тест.рф/абв?абв=абв#абв'),            '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'        )        self.assertEqual(escape_url('http://vimeo.com/56015672#at=0'), 'http://vimeo.com/56015672#at=0')
    def test_js_to_json_realworld(self):        inp = '''{
            'clip':{'provider':'pseudo'}        }'''
        self.assertEqual(js_to_json(inp), '''{
            "clip":{"provider":"pseudo"}        }''')
        json.loads(js_to_json(inp))
        inp = '''{
            'playlist':[{'controls':{'all':null}}]        }'''
        self.assertEqual(js_to_json(inp), '''{
            "playlist":[{"controls":{"all":null}}]        }''')

        inp = '''"The CW\\'s \\'Crazy Ex-Girlfriend\\'"'''        self.assertEqual(js_to_json(inp), '''"The CW's 'Crazy Ex-Girlfriend'"''')
        inp = '"SAND Number: SAND 2013-7800P\\nPresenter: Tom Russo\\nHabanero Software Training - Xyce Software\\nXyce, Sandia\\u0027s"'        json_code = js_to_json(inp)        self.assertEqual(json.loads(json_code), json.loads(inp))
        inp = '''{
            0:{src:'skipped', type: 'application/dash+xml'},            1:{src:'skipped', type: 'application/vnd.apple.mpegURL'},        }'''
        self.assertEqual(js_to_json(inp), '''{
            "0":{"src":"skipped", "type": "application/dash+xml"},            "1":{"src":"skipped", "type": "application/vnd.apple.mpegURL"}        }''')

        inp = '''{"foo":101}'''        self.assertEqual(js_to_json(inp), '''{"foo":101}''')
        inp = '''{"duration": "00:01:07"}'''        self.assertEqual(js_to_json(inp), '''{"duration": "00:01:07"}''')
    def test_js_to_json_edgecases(self):        on = js_to_json("{abc_def:'1\\'\\\\2\\\\\\'3\"4'}")        self.assertEqual(json.loads(on), {"abc_def": "1'\\2\\'3\"4"})
        on = js_to_json('{"abc": true}')        self.assertEqual(json.loads(on), {'abc': True})
        # Ignore JavaScript code as well        on = js_to_json('''{
            "x": 1,            y: "a",            z: some.code        }''')
        d = json.loads(on)        self.assertEqual(d['x'], 1)        self.assertEqual(d['y'], 'a')
        on = js_to_json('["abc", "def",]')        self.assertEqual(json.loads(on), ['abc', 'def'])
        on = js_to_json('{"abc": "def",}')        self.assertEqual(json.loads(on), {'abc': 'def'})
        on = js_to_json('{ 0: /* " \n */ ",]" , }')        self.assertEqual(json.loads(on), {'0': ',]'})
        on = js_to_json(r'["<p>x<\/p>"]')        self.assertEqual(json.loads(on), ['<p>x</p>'])
        on = js_to_json(r'["\xaa"]')        self.assertEqual(json.loads(on), ['\u00aa'])
        on = js_to_json("['a\\\nb']")        self.assertEqual(json.loads(on), ['ab'])
        on = js_to_json('{0xff:0xff}')        self.assertEqual(json.loads(on), {'255': 255})
        on = js_to_json('{077:077}')        self.assertEqual(json.loads(on), {'63': 63})
        on = js_to_json('{42:42}')        self.assertEqual(json.loads(on), {'42': 42})
    def test_extract_attributes(self):        self.assertEqual(extract_attributes('<e x="y">'), {'x': 'y'})        self.assertEqual(extract_attributes("<e x='y'>"), {'x': 'y'})        self.assertEqual(extract_attributes('<e x=y>'), {'x': 'y'})        self.assertEqual(extract_attributes('<e x="a \'b\' c">'), {'x': "a 'b' c"})        self.assertEqual(extract_attributes('<e x=\'a "b" c\'>'), {'x': 'a "b" c'})        self.assertEqual(extract_attributes('<e x="&#121;">'), {'x': 'y'})        self.assertEqual(extract_attributes('<e x="&#x79;">'), {'x': 'y'})        self.assertEqual(extract_attributes('<e x="&amp;">'), {'x': '&'})  # XML        self.assertEqual(extract_attributes('<e x="&quot;">'), {'x': '"'})        self.assertEqual(extract_attributes('<e x="&pound;">'), {'x': '£'})  # HTML 3.2        self.assertEqual(extract_attributes('<e x="&lambda;">'), {'x': 'λ'})  # HTML 4.0        self.assertEqual(extract_attributes('<e x="&foo">'), {'x': '&foo'})        self.assertEqual(extract_attributes('<e x="\'">'), {'x': "'"})        self.assertEqual(extract_attributes('<e x=\'"\'>'), {'x': '"'})        self.assertEqual(extract_attributes('<e x >'), {'x': None})        self.assertEqual(extract_attributes('<e x=y a>'), {'x': 'y', 'a': None})        self.assertEqual(extract_attributes('<e x= y>'), {'x': 'y'})        self.assertEqual(extract_attributes('<e x=1 y=2 x=3>'), {'y': '2', 'x': '3'})        self.assertEqual(extract_attributes('<e \nx=\ny\n>'), {'x': 'y'})        self.assertEqual(extract_attributes('<e \nx=\n"y"\n>'), {'x': 'y'})        self.assertEqual(extract_attributes("<e \nx=\n'y'\n>"), {'x': 'y'})        self.assertEqual(extract_attributes('<e \nx="\ny\n">'), {'x': '\ny\n'})        self.assertEqual(extract_attributes('<e CAPS=x>'), {'caps': 'x'})  # Names lowercased        self.assertEqual(extract_attributes('<e x=1 X=2>'), {'x': '2'})        self.assertEqual(extract_attributes('<e X=1 x=2>'), {'x': '2'})        self.assertEqual(extract_attributes('<e _:funny-name1=1>'), {'_:funny-name1': '1'})        self.assertEqual(extract_attributes('<e x="Fáilte 世界 \U0001f600">'), {'x': 'Fáilte 世界 \U0001f600'})        self.assertEqual(extract_attributes('<e x="décompose&#769;">'), {'x': 'décompose\u0301'})        # "Narrow" Python builds don't support unicode code points outside BMP.        try:            compat_chr(0x10000)            supports_outside_bmp = True        except ValueError:            supports_outside_bmp = False        if supports_outside_bmp:            self.assertEqual(extract_attributes('<e x="Smile &#128512;!">'), {'x': 'Smile \U0001f600!'})
    def test_clean_html(self):        self.assertEqual(clean_html('a:\nb'), 'a: b')        self.assertEqual(clean_html('a:\n   "b"'), 'a:    "b"')
    def test_intlist_to_bytes(self):        self.assertEqual(            intlist_to_bytes([0, 1, 127, 128, 255]),            b'\x00\x01\x7f\x80\xff')
    def test_args_to_str(self):        self.assertEqual(            args_to_str(['foo', 'ba/r', '-baz', '2 be', '']),            'foo ba/r -baz \'2 be\' \'\''        )
    def test_parse_filesize(self):        self.assertEqual(parse_filesize(None), None)        self.assertEqual(parse_filesize(''), None)        self.assertEqual(parse_filesize('91 B'), 91)        self.assertEqual(parse_filesize('foobar'), None)        self.assertEqual(parse_filesize('2 MiB'), 2097152)        self.assertEqual(parse_filesize('5 GB'), 5000000000)        self.assertEqual(parse_filesize('1.2Tb'), 1200000000000)        self.assertEqual(parse_filesize('1.2tb'), 1200000000000)        self.assertEqual(parse_filesize('1,24 KB'), 1240)        self.assertEqual(parse_filesize('1,24 kb'), 1240)        self.assertEqual(parse_filesize('8.5 megabytes'), 8500000)
    def test_parse_count(self):        self.assertEqual(parse_count(None), None)        self.assertEqual(parse_count(''), None)        self.assertEqual(parse_count('0'), 0)        self.assertEqual(parse_count('1000'), 1000)        self.assertEqual(parse_count('1.000'), 1000)        self.assertEqual(parse_count('1.1k'), 1100)        self.assertEqual(parse_count('1.1kk'), 1100000)        self.assertEqual(parse_count('1.1kk '), 1100000)        self.assertEqual(parse_count('1.1kk views'), 1100000)
    def test_version_tuple(self):        self.assertEqual(version_tuple('1'), (1,))        self.assertEqual(version_tuple('10.23.344'), (10, 23, 344))        self.assertEqual(version_tuple('10.1-6'), (10, 1, 6))  # avconv style
    def test_detect_exe_version(self):        self.assertEqual(detect_exe_version('''ffmpeg version 1.2.1
built on May 27 2013 08:37:26 with gcc 4.7 (Debian 4.7.3-4)configuration: --prefix=/usr --extra-'''), '1.2.1')
        self.assertEqual(detect_exe_version('''ffmpeg version N-63176-g1fb4685
built on May 15 2014 22:09:06 with gcc 4.8.2 (GCC)'''), 'N-63176-g1fb4685')
        self.assertEqual(detect_exe_version('''X server found. dri2 connection failed!
Trying to open render node...Success at /dev/dri/renderD128.ffmpeg version 2.4.4 Copyright (c) 2000-2014 the FFmpeg ...'''), '2.4.4')

    def test_age_restricted(self):        self.assertFalse(age_restricted(None, 10))  # unrestricted content        self.assertFalse(age_restricted(1, None))  # unrestricted policy        self.assertFalse(age_restricted(8, 10))        self.assertTrue(age_restricted(18, 14))        self.assertFalse(age_restricted(18, 18))
    def test_is_html(self):        self.assertFalse(is_html(b'\x49\x44\x43<html'))        self.assertTrue(is_html(b'<!DOCTYPE foo>\xaaa'))        self.assertTrue(is_html(  # UTF-8 with BOM            b'\xef\xbb\xbf<!DOCTYPE foo>\xaaa'))        self.assertTrue(is_html(  # UTF-16-LE            b'\xff\xfe<\x00h\x00t\x00m\x00l\x00>\x00\xe4\x00'        ))        self.assertTrue(is_html(  # UTF-16-BE            b'\xfe\xff\x00<\x00h\x00t\x00m\x00l\x00>\x00\xe4'        ))        self.assertTrue(is_html(  # UTF-32-BE            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'))        self.assertTrue(is_html(  # UTF-32-LE            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'))
    def test_render_table(self):        self.assertEqual(            render_table(                ['a', 'bcd'],                [[123, 4], [9999, 51]]),            'a    bcd\n'            '123  4\n'            '9999 51')
    def test_match_str(self):        self.assertRaises(ValueError, match_str, 'xy>foobar', {})        self.assertFalse(match_str('xy', {'x': 1200}))        self.assertTrue(match_str('!xy', {'x': 1200}))        self.assertTrue(match_str('x', {'x': 1200}))        self.assertFalse(match_str('!x', {'x': 1200}))        self.assertTrue(match_str('x', {'x': 0}))        self.assertFalse(match_str('x>0', {'x': 0}))        self.assertFalse(match_str('x>0', {}))        self.assertTrue(match_str('x>?0', {}))        self.assertTrue(match_str('x>1K', {'x': 1200}))        self.assertFalse(match_str('x>2K', {'x': 1200}))        self.assertTrue(match_str('x>=1200 & x < 1300', {'x': 1200}))        self.assertFalse(match_str('x>=1100 & x < 1200', {'x': 1200}))        self.assertFalse(match_str('y=a212', {'y': 'foobar42'}))        self.assertTrue(match_str('y=foobar42', {'y': 'foobar42'}))        self.assertFalse(match_str('y!=foobar42', {'y': 'foobar42'}))        self.assertTrue(match_str('y!=foobar2', {'y': 'foobar42'}))        self.assertFalse(match_str(            'like_count > 100 & dislike_count <? 50 & description',            {'like_count': 90, 'description': 'foo'}))        self.assertTrue(match_str(            'like_count > 100 & dislike_count <? 50 & description',            {'like_count': 190, 'description': 'foo'}))        self.assertFalse(match_str(            'like_count > 100 & dislike_count <? 50 & description',            {'like_count': 190, 'dislike_count': 60, 'description': 'foo'}))        self.assertFalse(match_str(            'like_count > 100 & dislike_count <? 50 & description',            {'like_count': 190, 'dislike_count': 10}))
    def test_parse_dfxp_time_expr(self):        self.assertEqual(parse_dfxp_time_expr(None), None)        self.assertEqual(parse_dfxp_time_expr(''), None)        self.assertEqual(parse_dfxp_time_expr('0.1'), 0.1)        self.assertEqual(parse_dfxp_time_expr('0.1s'), 0.1)        self.assertEqual(parse_dfxp_time_expr('00:00:01'), 1.0)        self.assertEqual(parse_dfxp_time_expr('00:00:01.100'), 1.1)        self.assertEqual(parse_dfxp_time_expr('00:00:01:100'), 1.1)
    def test_dfxp2srt(self):        dfxp_data = '''<?xml version="1.0" encoding="UTF-8"?>
            <tt xmlns="http://www.w3.org/ns/ttml" xml:lang="en" xmlns:tts="http://www.w3.org/ns/ttml#parameter">            <body>                <div xml:lang="en">                    <p begin="0" end="1">The following line contains Chinese characters and special symbols</p>                    <p begin="1" end="2">第二行<br/>♪♪</p>                    <p begin="2" dur="1"><span>Third<br/>Line</span></p>                    <p begin="3" end="-1">Lines with invalid timestamps are ignored</p>                    <p begin="-1" end="-1">Ignore, two</p>                    <p begin="3" dur="-1">Ignored, three</p>                </div>            </body>            </tt>'''
        srt_data = '''1
00:00:00,000 --> 00:00:01,000The following line contains Chinese characters and special symbols
200:00:01,000 --> 00:00:02,000第二行♪♪
300:00:02,000 --> 00:00:03,000ThirdLine
'''
        self.assertEqual(dfxp2srt(dfxp_data), srt_data)
        dfxp_data_no_default_namespace = '''<?xml version="1.0" encoding="UTF-8"?>
            <tt xml:lang="en" xmlns:tts="http://www.w3.org/ns/ttml#parameter">            <body>                <div xml:lang="en">                    <p begin="0" end="1">The first line</p>                </div>            </body>            </tt>'''
        srt_data = '''1
00:00:00,000 --> 00:00:01,000The first line
'''
        self.assertEqual(dfxp2srt(dfxp_data_no_default_namespace), srt_data)
    def test_cli_option(self):        self.assertEqual(cli_option({'proxy': '127.0.0.1:3128'}, '--proxy', 'proxy'), ['--proxy', '127.0.0.1:3128'])        self.assertEqual(cli_option({'proxy': None}, '--proxy', 'proxy'), [])        self.assertEqual(cli_option({}, '--proxy', 'proxy'), [])        self.assertEqual(cli_option({'retries': 10}, '--retries', 'retries'), ['--retries', '10'])
    def test_cli_valueless_option(self):        self.assertEqual(cli_valueless_option(            {'downloader': 'external'}, '--external-downloader', 'downloader', 'external'), ['--external-downloader'])        self.assertEqual(cli_valueless_option(            {'downloader': 'internal'}, '--external-downloader', 'downloader', 'external'), [])        self.assertEqual(cli_valueless_option(            {'nocheckcertificate': True}, '--no-check-certificate', 'nocheckcertificate'), ['--no-check-certificate'])        self.assertEqual(cli_valueless_option(            {'nocheckcertificate': False}, '--no-check-certificate', 'nocheckcertificate'), [])        self.assertEqual(cli_valueless_option(            {'checkcertificate': True}, '--no-check-certificate', 'checkcertificate', False), [])        self.assertEqual(cli_valueless_option(            {'checkcertificate': False}, '--no-check-certificate', 'checkcertificate', False), ['--no-check-certificate'])
    def test_cli_bool_option(self):        self.assertEqual(            cli_bool_option(                {'nocheckcertificate': True}, '--no-check-certificate', 'nocheckcertificate'),            ['--no-check-certificate', 'true'])        self.assertEqual(            cli_bool_option(                {'nocheckcertificate': True}, '--no-check-certificate', 'nocheckcertificate', separator='='),            ['--no-check-certificate=true'])        self.assertEqual(            cli_bool_option(                {'nocheckcertificate': True}, '--check-certificate', 'nocheckcertificate', 'false', 'true'),            ['--check-certificate', 'false'])        self.assertEqual(            cli_bool_option(                {'nocheckcertificate': True}, '--check-certificate', 'nocheckcertificate', 'false', 'true', '='),            ['--check-certificate=false'])        self.assertEqual(            cli_bool_option(                {'nocheckcertificate': False}, '--check-certificate', 'nocheckcertificate', 'false', 'true'),            ['--check-certificate', 'true'])        self.assertEqual(            cli_bool_option(                {'nocheckcertificate': False}, '--check-certificate', 'nocheckcertificate', 'false', 'true', '='),            ['--check-certificate=true'])
    def test_ohdave_rsa_encrypt(self):        N = 0xab86b6371b5318aaa1d3c9e612a9f1264f372323c8c0f19875b5fc3b3fd3afcc1e5bec527aa94bfa85bffc157e4245aebda05389a5357b75115ac94f074aefcd        e = 65537
        self.assertEqual(            ohdave_rsa_encrypt(b'aa111222', e, N),            '726664bd9a23fd0c70f9f1b84aab5e3905ce1e45a584e9cbcf9bcc7510338fc1986d6c599ff990d923aa43c51c0d9013cd572e13bc58f4ae48f2ed8c0b0ba881')
    def test_encode_base_n(self):        self.assertEqual(encode_base_n(0, 30), '0')        self.assertEqual(encode_base_n(80, 30), '2k')
        custom_table = '9876543210ZYXWVUTSRQPONMLKJIHGFEDCBA'        self.assertEqual(encode_base_n(0, 30, custom_table), '9')        self.assertEqual(encode_base_n(80, 30, custom_table), '7P')
        self.assertRaises(ValueError, encode_base_n, 0, 70)        self.assertRaises(ValueError, encode_base_n, 0, 60, custom_table)
    def test_urshift(self):        self.assertEqual(urshift(3, 1), 1)        self.assertEqual(urshift(-3, 1), 2147483646)
    def test_get_element_by_class(self):        html = '''
            <span class="foo bar">nice</span>        '''

        self.assertEqual(get_element_by_class('foo', html), 'nice')        self.assertEqual(get_element_by_class('no-such-class', html), None)
if __name__ == '__main__':    unittest.main()