]> jfr.im git - yt-dlp.git/blobdiff - test/test_utils.py
[test:download] Raise on network errors (#10283)
[yt-dlp.git] / test / test_utils.py
index 989a99ea3bcab3abd28b96f70c15b64493dfec49..251739686efe5724896245546b3880328e3d1861 100644 (file)
@@ -4,6 +4,8 @@
 import os
 import sys
 import unittest
+import warnings
+import datetime as dt
 
 sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
 
@@ -12,6 +14,7 @@
 import io
 import itertools
 import json
+import subprocess
 import xml.etree.ElementTree
 
 from yt_dlp.compat import (
@@ -25,7 +28,9 @@
     ExtractorError,
     InAdvancePagedList,
     LazyList,
+    NO_DEFAULT,
     OnDemandPagedList,
+    Popen,
     age_restricted,
     args_to_str,
     base_url,
     determine_ext,
     determine_file_encoding,
     dfxp2srt,
-    dict_get,
     encode_base_n,
     encode_compat_str,
     encodeFilename,
-    escape_rfc3986,
-    escape_url,
     expand_path,
     extract_attributes,
+    extract_basic_auth,
     find_xpath_attr,
     fix_xml_ampersands,
     float_or_none,
     sanitize_filename,
     sanitize_path,
     sanitize_url,
-    sanitized_Request,
     shell_quote,
     smuggle_url,
     str_to_int,
     strip_or_none,
     subtitles_filename,
     timeconvert,
+    try_call,
     unescapeHTML,
     unified_strdate,
     unified_timestamp,
     urlencode_postdata,
     urljoin,
     urshift,
+    variadic,
     version_tuple,
     xpath_attr,
     xpath_element,
     xpath_text,
     xpath_with_ns,
 )
+from yt_dlp.utils.networking import (
+    HTTPHeaderDict,
+    escape_rfc3986,
+    normalize_url,
+    remove_dot_segments,
+)
 
 
 class TestUtil(unittest.TestCase):
@@ -140,13 +150,13 @@ def test_sanitize_filename(self):
 
         self.assertEqual(sanitize_filename('123'), '123')
 
-        self.assertEqual('abc_de', sanitize_filename('abc/de'))
+        self.assertEqual('abcde', 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('abc_de', sanitize_filename('abc/<>\\*|de', is_id=False))
+        self.assertEqual('xxx', sanitize_filename('xxx/<>\\*|', is_id=False))
+        self.assertEqual('yes no', sanitize_filename('yes? no', is_id=False))
+        self.assertEqual('this - that', sanitize_filename('this: that', is_id=False))
 
         self.assertEqual(sanitize_filename('AT&T'), 'AT&T')
         aumlaut = 'ä'
@@ -252,15 +262,6 @@ def test_sanitize_url(self):
         self.assertEqual(sanitize_url('https://foo.bar'), 'https://foo.bar')
         self.assertEqual(sanitize_url('foo bar'), 'foo bar')
 
-    def test_extract_basic_auth(self):
-        auth_header = lambda url: sanitized_Request(url).get_header('Authorization')
-        self.assertFalse(auth_header('http://foo.bar'))
-        self.assertFalse(auth_header('http://:foo.bar'))
-        self.assertEqual(auth_header('http://@foo.bar'), 'Basic Og==')
-        self.assertEqual(auth_header('http://:pass@foo.bar'), 'Basic OnBhc3M=')
-        self.assertEqual(auth_header('http://user:@foo.bar'), 'Basic dXNlcjo=')
-        self.assertEqual(auth_header('http://user:pass@foo.bar'), 'Basic dXNlcjpwYXNz')
-
     def test_expand_path(self):
         def env(var):
             return f'%{var}%' if sys.platform == 'win32' else f'${var}'
@@ -275,8 +276,8 @@ def env(var):
             self.assertEqual(expand_path(env('HOME')), os.getenv('HOME'))
             self.assertEqual(expand_path('~'), os.getenv('HOME'))
             self.assertEqual(
-                expand_path('~/%s' % env('yt_dlp_EXPATH_PATH')),
-                '%s/expanded' % os.getenv('HOME'))
+                expand_path('~/{}'.format(env('yt_dlp_EXPATH_PATH'))),
+                '{}/expanded'.format(os.getenv('HOME')))
         finally:
             os.environ['HOME'] = old_home or ''
 
@@ -355,12 +356,12 @@ def test_datetime_from_str(self):
         self.assertEqual(datetime_from_str('now+23hours', precision='hour'), datetime_from_str('now+23hours', precision='auto'))
 
     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)
+        _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')
@@ -413,6 +414,10 @@ def test_unified_timestamps(self):
         self.assertEqual(unified_timestamp('December 15, 2017 at 7:49 am'), 1513324140)
         self.assertEqual(unified_timestamp('2018-03-14T08:32:43.1493874+00:00'), 1521016363)
 
+        self.assertEqual(unified_timestamp('December 31 1969 20:00:01 EDT'), 1)
+        self.assertEqual(unified_timestamp('Wednesday 31 December 1969 18:01:26 MDT'), 86)
+        self.assertEqual(unified_timestamp('12/31/1969 20:01:18 EDT', False), 78)
+
     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)
@@ -501,7 +506,7 @@ def test_xpath_attr(self):
         self.assertRaises(ExtractorError, xpath_attr, doc, 'div/p', 'y', fatal=True)
 
     def test_smuggle_url(self):
-        data = {"ö": "ö", "abc": [3]}
+        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)
@@ -562,6 +567,7 @@ def test_base_url(self):
         self.assertEqual(base_url('http://foo.de/bar/'), 'http://foo.de/bar/')
         self.assertEqual(base_url('http://foo.de/bar/baz'), 'http://foo.de/bar/')
         self.assertEqual(base_url('http://foo.de/bar/baz?x=z/x/c'), 'http://foo.de/bar/')
+        self.assertEqual(base_url('http://foo.de/bar/baz&x=z&w=y/x/c'), 'http://foo.de/bar/baz&x=z&w=y/x/')
 
     def test_urljoin(self):
         self.assertEqual(urljoin('http://foo.de/', '/a/b/c.txt'), 'http://foo.de/a/b/c.txt')
@@ -652,6 +658,8 @@ def test_parse_duration(self):
         self.assertEqual(parse_duration('P0Y0M0DT0H4M20.880S'), 260.88)
         self.assertEqual(parse_duration('01:02:03:050'), 3723.05)
         self.assertEqual(parse_duration('103:050'), 103.05)
+        self.assertEqual(parse_duration('1HR 3MIN'), 3780)
+        self.assertEqual(parse_duration('2hrs 3mins'), 7380)
 
     def test_fix_xml_ampersands(self):
         self.assertEqual(
@@ -745,28 +753,6 @@ def test_multipart_encode(self):
         self.assertRaises(
             ValueError, multipart_encode, {b'field': b'value'}, boundary='value')
 
-    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_merge_dicts(self):
         self.assertEqual(merge_dicts({'a': 1}, {'b': 2}), {'a': 1, 'b': 2})
         self.assertEqual(merge_dicts({'a': 1}, {'a': 2}), {'a': 1})
@@ -784,6 +770,11 @@ def test_encode_compat_str(self):
 
     def test_parse_iso8601(self):
         self.assertEqual(parse_iso8601('2014-03-23T23:04:26+0100'), 1395612266)
+        self.assertEqual(parse_iso8601('2014-03-23T23:04:26-07:00'), 1395641066)
+        self.assertEqual(parse_iso8601('2014-03-23T23:04:26', timezone=dt.timedelta(hours=-7)), 1395641066)
+        self.assertEqual(parse_iso8601('2014-03-23T23:04:26', timezone=NO_DEFAULT), None)
+        # default does not override timezone in date_str
+        self.assertEqual(parse_iso8601('2014-03-23T23:04:26-07:00', timezone=dt.timedelta(hours=-10)), 1395641066)
         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)
@@ -793,7 +784,7 @@ def test_parse_iso8601(self):
     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}])
+        self.assertEqual(d, [{'id': '532cb', 'x': 3}])
 
         stripped = strip_jsonp('parseMetadata({"STATUS":"OK"})\n\n\n//epc')
         d = json.loads(stripped)
@@ -928,24 +919,124 @@ def test_escape_rfc3986(self):
         self.assertEqual(escape_rfc3986('foo bar'), 'foo%20bar')
         self.assertEqual(escape_rfc3986('foo%20bar'), 'foo%20bar')
 
-    def test_escape_url(self):
+    def test_normalize_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'
+            normalize_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'
+            normalize_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'
+            normalize_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'
+            normalize_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(normalize_url('http://vimeo.com/56015672#at=0'), 'http://vimeo.com/56015672#at=0')
+
+        self.assertEqual(normalize_url('http://www.example.com/../a/b/../c/./d.html'), 'http://www.example.com/a/c/d.html')
+
+    def test_remove_dot_segments(self):
+        self.assertEqual(remove_dot_segments('/a/b/c/./../../g'), '/a/g')
+        self.assertEqual(remove_dot_segments('mid/content=5/../6'), 'mid/6')
+        self.assertEqual(remove_dot_segments('/ad/../cd'), '/cd')
+        self.assertEqual(remove_dot_segments('/ad/../cd/'), '/cd/')
+        self.assertEqual(remove_dot_segments('/..'), '/')
+        self.assertEqual(remove_dot_segments('/./'), '/')
+        self.assertEqual(remove_dot_segments('/./a'), '/a')
+        self.assertEqual(remove_dot_segments('/abc/./.././d/././e/.././f/./../../ghi'), '/ghi')
+        self.assertEqual(remove_dot_segments('/'), '/')
+        self.assertEqual(remove_dot_segments('/t'), '/t')
+        self.assertEqual(remove_dot_segments('t'), 't')
+        self.assertEqual(remove_dot_segments(''), '')
+        self.assertEqual(remove_dot_segments('/../a/b/c'), '/a/b/c')
+        self.assertEqual(remove_dot_segments('../a'), 'a')
+        self.assertEqual(remove_dot_segments('./a'), 'a')
+        self.assertEqual(remove_dot_segments('.'), '')
+        self.assertEqual(remove_dot_segments('////'), '////')
+
+    def test_js_to_json_vars_strings(self):
+        self.assertDictEqual(
+            json.loads(js_to_json(
+                '''{
+                    'null': a,
+                    'nullStr': b,
+                    'true': c,
+                    'trueStr': d,
+                    'false': e,
+                    'falseStr': f,
+                    'unresolvedVar': g,
+                }''',
+                {
+                    'a': 'null',
+                    'b': '"null"',
+                    'c': 'true',
+                    'd': '"true"',
+                    'e': 'false',
+                    'f': '"false"',
+                    'g': 'var',
+                },
+            )),
+            {
+                'null': None,
+                'nullStr': 'null',
+                'true': True,
+                'trueStr': 'true',
+                'false': False,
+                'falseStr': 'false',
+                'unresolvedVar': 'var',
+            },
+        )
+
+        self.assertDictEqual(
+            json.loads(js_to_json(
+                '''{
+                    'int': a,
+                    'intStr': b,
+                    'float': c,
+                    'floatStr': d,
+                }''',
+                {
+                    'a': '123',
+                    'b': '"123"',
+                    'c': '1.23',
+                    'd': '"1.23"',
+                },
+            )),
+            {
+                'int': 123,
+                'intStr': '123',
+                'float': 1.23,
+                'floatStr': '1.23',
+            },
+        )
+
+        self.assertDictEqual(
+            json.loads(js_to_json(
+                '''{
+                    'object': a,
+                    'objectStr': b,
+                    'array': c,
+                    'arrayStr': d,
+                }''',
+                {
+                    'a': '{}',
+                    'b': '"{}"',
+                    'c': '[]',
+                    'd': '"[]"',
+                },
+            )),
+            {
+                'object': {},
+                'objectStr': '{}',
+                'array': [],
+                'arrayStr': '[]',
+            },
         )
-        self.assertEqual(escape_url('http://vimeo.com/56015672#at=0'), 'http://vimeo.com/56015672#at=0')
 
     def test_js_to_json_realworld(self):
         inp = '''{
@@ -990,7 +1081,7 @@ def test_js_to_json_realworld(self):
 
     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"})
+        self.assertEqual(json.loads(on), {'abc_def': "1'\\2\\'3\"4"})
 
         on = js_to_json('{"abc": true}')
         self.assertEqual(json.loads(on), {'abc': True})
@@ -1022,9 +1113,9 @@ def test_js_to_json_edgecases(self):
             'c': 0,
             'd': 42.42,
             'e': [],
-            'f': "abc",
-            'g': "",
-            '42': 42
+            'f': 'abc',
+            'g': '',
+            '42': 42,
         })
 
         on = js_to_json('["abc", "def",]')
@@ -1093,10 +1184,34 @@ def test_js_to_json_edgecases(self):
         on = js_to_json('[1,//{},\n2]')
         self.assertEqual(json.loads(on), [1, 2])
 
+        on = js_to_json(R'"\^\$\#"')
+        self.assertEqual(json.loads(on), R'^$#', msg='Unnecessary escapes should be stripped')
+
+        on = js_to_json('\'"\\""\'')
+        self.assertEqual(json.loads(on), '"""', msg='Unnecessary quote escape should be escaped')
+
+        on = js_to_json('[new Date("spam"), \'("eggs")\']')
+        self.assertEqual(json.loads(on), ['spam', '("eggs")'], msg='Date regex should match a single string')
+
     def test_js_to_json_malformed(self):
         self.assertEqual(js_to_json('42a1'), '42"a1"')
         self.assertEqual(js_to_json('42a-1'), '42"a"-1')
 
+    def test_js_to_json_template_literal(self):
+        self.assertEqual(js_to_json('`Hello ${name}`', {'name': '"world"'}), '"Hello world"')
+        self.assertEqual(js_to_json('`${name}${name}`', {'name': '"X"'}), '"XX"')
+        self.assertEqual(js_to_json('`${name}${name}`', {'name': '5'}), '"55"')
+        self.assertEqual(js_to_json('`${name}"${name}"`', {'name': '5'}), '"5\\"5\\""')
+        self.assertEqual(js_to_json('`${name}`', {}), '"name"')
+
+    def test_js_to_json_common_constructors(self):
+        self.assertEqual(json.loads(js_to_json('new Map([["a", 5]])')), {'a': 5})
+        self.assertEqual(json.loads(js_to_json('Array(5, 10)')), [5, 10])
+        self.assertEqual(json.loads(js_to_json('new Array(15,5)')), [15, 5])
+        self.assertEqual(json.loads(js_to_json('new Map([Array(5, 10),new Array(15,5)])')), {'5': 10, '15': 5})
+        self.assertEqual(json.loads(js_to_json('new Date("123")')), '123')
+        self.assertEqual(json.loads(js_to_json('new Date(\'2023-10-19\')')), '2023-10-19')
+
     def test_extract_attributes(self):
         self.assertEqual(extract_attributes('<e x="y">'), {'x': 'y'})
         self.assertEqual(extract_attributes("<e x='y'>"), {'x': 'y'})
@@ -1150,7 +1265,7 @@ def test_intlist_to_bytes(self):
     def test_args_to_str(self):
         self.assertEqual(
             args_to_str(['foo', 'ba/r', '-baz', '2 be', '']),
-            'foo ba/r -baz \'2 be\' \'\'' if compat_os_name != 'nt' else 'foo ba/r -baz "2 be" ""'
+            'foo ba/r -baz \'2 be\' \'\'' if compat_os_name != 'nt' else 'foo ba/r -baz "2 be" ""',
         )
 
     def test_parse_filesize(self):
@@ -1233,10 +1348,10 @@ def test_is_html(self):
         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'
+            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'
+            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'))
@@ -1672,6 +1787,9 @@ def test_get_elements_text_and_html_by_attribute(self):
         self.assertEqual(list(get_elements_text_and_html_by_attribute('class', 'foo', html)), [])
         self.assertEqual(list(get_elements_text_and_html_by_attribute('class', 'no-such-foo', html)), [])
 
+        self.assertEqual(list(get_elements_text_and_html_by_attribute(
+            'class', 'foo', '<a class="foo">nice</a><span class="foo">nice</span>', tag='a')), [('nice', '<a class="foo">nice</a>')])
+
     GET_ELEMENT_BY_TAG_TEST_STRING = '''
     random text lorem ipsum</p>
     <div>
@@ -1729,6 +1847,8 @@ def test_iri_to_uri(self):
     def test_clean_podcast_url(self):
         self.assertEqual(clean_podcast_url('https://www.podtrac.com/pts/redirect.mp3/chtbl.com/track/5899E/traffic.megaphone.fm/HSW7835899191.mp3'), 'https://traffic.megaphone.fm/HSW7835899191.mp3')
         self.assertEqual(clean_podcast_url('https://play.podtrac.com/npr-344098539/edge1.pod.npr.org/anon.npr-podcasts/podcast/npr/waitwait/2020/10/20201003_waitwait_wwdtmpodcast201003-015621a5-f035-4eca-a9a1-7c118d90bc3c.mp3'), 'https://edge1.pod.npr.org/anon.npr-podcasts/podcast/npr/waitwait/2020/10/20201003_waitwait_wwdtmpodcast201003-015621a5-f035-4eca-a9a1-7c118d90bc3c.mp3')
+        self.assertEqual(clean_podcast_url('https://pdst.fm/e/2.gum.fm/chtbl.com/track/chrt.fm/track/34D33/pscrb.fm/rss/p/traffic.megaphone.fm/ITLLC7765286967.mp3?updated=1687282661'), 'https://traffic.megaphone.fm/ITLLC7765286967.mp3?updated=1687282661')
+        self.assertEqual(clean_podcast_url('https://pdst.fm/e/https://mgln.ai/e/441/www.buzzsprout.com/1121972/13019085-ep-252-the-deep-life-stack.mp3'), 'https://www.buzzsprout.com/1121972/13019085-ep-252-the-deep-life-stack.mp3')
 
     def test_LazyList(self):
         it = list(range(10))
@@ -1815,7 +1935,7 @@ def test_locked_file(self):
                             with locked_file(FILE, test_mode, False):
                                 pass
                         except (BlockingIOError, PermissionError):
-                            if not testing_write:  # FIXME
+                            if not testing_write:  # FIXME: blocked read access
                                 print(f'Known issue: Exclusive lock ({lock_mode}) blocks read access ({test_mode})')
                                 continue
                             self.assertTrue(testing_write, f'{test_mode} is blocked by {lock_mode}')
@@ -1858,6 +1978,8 @@ def test_get_compatible_ext(self):
             vcodecs=[None], acodecs=[None], vexts=['webm'], aexts=['m4a']), 'mkv')
         self.assertEqual(get_compatible_ext(
             vcodecs=[None], acodecs=[None], vexts=['webm'], aexts=['webm']), 'webm')
+        self.assertEqual(get_compatible_ext(
+            vcodecs=[None], acodecs=[None], vexts=['webm'], aexts=['weba']), 'webm')
 
         self.assertEqual(get_compatible_ext(
             vcodecs=['h264'], acodecs=['mp4a'], vexts=['mov'], aexts=['m4a']), 'mp4')
@@ -1869,6 +1991,114 @@ def test_get_compatible_ext(self):
         self.assertEqual(get_compatible_ext(
             vcodecs=['av1'], acodecs=['mp4a'], vexts=['webm'], aexts=['m4a'], preferences=('webm', 'mkv')), 'mkv')
 
+    def test_try_call(self):
+        def total(*x, **kwargs):
+            return sum(x) + sum(kwargs.values())
+
+        self.assertEqual(try_call(None), None,
+                         msg='not a fn should give None')
+        self.assertEqual(try_call(lambda: 1), 1,
+                         msg='int fn with no expected_type should give int')
+        self.assertEqual(try_call(lambda: 1, expected_type=int), 1,
+                         msg='int fn with expected_type int should give int')
+        self.assertEqual(try_call(lambda: 1, expected_type=dict), None,
+                         msg='int fn with wrong expected_type should give None')
+        self.assertEqual(try_call(total, args=(0, 1, 0), expected_type=int), 1,
+                         msg='fn should accept arglist')
+        self.assertEqual(try_call(total, kwargs={'a': 0, 'b': 1, 'c': 0}, expected_type=int), 1,
+                         msg='fn should accept kwargs')
+        self.assertEqual(try_call(lambda: 1, expected_type=dict), None,
+                         msg='int fn with no expected_type should give None')
+        self.assertEqual(try_call(lambda x: {}, total, args=(42, ), expected_type=int), 42,
+                         msg='expect first int result with expected_type int')
+
+    def test_variadic(self):
+        self.assertEqual(variadic(None), (None, ))
+        self.assertEqual(variadic('spam'), ('spam', ))
+        self.assertEqual(variadic('spam', allowed_types=dict), 'spam')
+        with warnings.catch_warnings():
+            warnings.simplefilter('ignore')
+            self.assertEqual(variadic('spam', allowed_types=[dict]), 'spam')
+
+    def test_http_header_dict(self):
+        headers = HTTPHeaderDict()
+        headers['ytdl-test'] = b'0'
+        self.assertEqual(list(headers.items()), [('Ytdl-Test', '0')])
+        headers['ytdl-test'] = 1
+        self.assertEqual(list(headers.items()), [('Ytdl-Test', '1')])
+        headers['Ytdl-test'] = '2'
+        self.assertEqual(list(headers.items()), [('Ytdl-Test', '2')])
+        self.assertTrue('ytDl-Test' in headers)
+        self.assertEqual(str(headers), str(dict(headers)))
+        self.assertEqual(repr(headers), str(dict(headers)))
+
+        headers.update({'X-dlp': 'data'})
+        self.assertEqual(set(headers.items()), {('Ytdl-Test', '2'), ('X-Dlp', 'data')})
+        self.assertEqual(dict(headers), {'Ytdl-Test': '2', 'X-Dlp': 'data'})
+        self.assertEqual(len(headers), 2)
+        self.assertEqual(headers.copy(), headers)
+        headers2 = HTTPHeaderDict({'X-dlp': 'data3'}, **headers, **{'X-dlp': 'data2'})
+        self.assertEqual(set(headers2.items()), {('Ytdl-Test', '2'), ('X-Dlp', 'data2')})
+        self.assertEqual(len(headers2), 2)
+        headers2.clear()
+        self.assertEqual(len(headers2), 0)
+
+        # ensure we prefer latter headers
+        headers3 = HTTPHeaderDict({'Ytdl-TeSt': 1}, {'Ytdl-test': 2})
+        self.assertEqual(set(headers3.items()), {('Ytdl-Test', '2')})
+        del headers3['ytdl-tesT']
+        self.assertEqual(dict(headers3), {})
+
+        headers4 = HTTPHeaderDict({'ytdl-test': 'data;'})
+        self.assertEqual(set(headers4.items()), {('Ytdl-Test', 'data;')})
+
+        # common mistake: strip whitespace from values
+        # https://github.com/yt-dlp/yt-dlp/issues/8729
+        headers5 = HTTPHeaderDict({'ytdl-test': ' data; '})
+        self.assertEqual(set(headers5.items()), {('Ytdl-Test', 'data;')})
+
+    def test_extract_basic_auth(self):
+        assert extract_basic_auth('http://:foo.bar') == ('http://:foo.bar', None)
+        assert extract_basic_auth('http://foo.bar') == ('http://foo.bar', None)
+        assert extract_basic_auth('http://@foo.bar') == ('http://foo.bar', 'Basic Og==')
+        assert extract_basic_auth('http://:pass@foo.bar') == ('http://foo.bar', 'Basic OnBhc3M=')
+        assert extract_basic_auth('http://user:@foo.bar') == ('http://foo.bar', 'Basic dXNlcjo=')
+        assert extract_basic_auth('http://user:pass@foo.bar') == ('http://foo.bar', 'Basic dXNlcjpwYXNz')
+
+    @unittest.skipUnless(compat_os_name == 'nt', 'Only relevant on Windows')
+    def test_windows_escaping(self):
+        tests = [
+            'test"&',
+            '%CMDCMDLINE:~-1%&',
+            'a\nb',
+            '"',
+            '\\',
+            '!',
+            '^!',
+            'a \\ b',
+            'a \\" b',
+            'a \\ b\\',
+            # We replace \r with \n
+            ('a\r\ra', 'a\n\na'),
+        ]
+
+        def run_shell(args):
+            stdout, stderr, error = Popen.run(
+                args, text=True, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+            assert not stderr
+            assert not error
+            return stdout
+
+        for argument in tests:
+            if isinstance(argument, str):
+                expected = argument
+            else:
+                argument, expected = argument
+
+            args = [sys.executable, '-c', 'import sys; print(end=sys.argv[1])', argument, 'end']
+            assert run_shell(args) == expected
+            assert run_shell(shell_quote(args, shell=True)) == expected
+
 
 if __name__ == '__main__':
     unittest.main()