[utils] Disallow trailing dot in sanitize_path for a path part
[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     clean_html,
22     DateRange,
23     detect_exe_version,
24     encodeFilename,
25     escape_rfc3986,
26     escape_url,
27     find_xpath_attr,
28     fix_xml_ampersands,
29     InAdvancePagedList,
30     intlist_to_bytes,
31     is_html,
32     js_to_json,
33     limit_length,
34     OnDemandPagedList,
35     orderedSet,
36     parse_duration,
37     parse_filesize,
38     parse_iso8601,
39     read_batch_urls,
40     sanitize_filename,
41     sanitize_path,
42     shell_quote,
43     smuggle_url,
44     str_to_int,
45     strip_jsonp,
46     struct_unpack,
47     timeconvert,
48     unescapeHTML,
49     unified_strdate,
50     unsmuggle_url,
51     uppercase_escape,
52     url_basename,
53     urlencode_postdata,
54     version_tuple,
55     xpath_with_ns,
56     render_table,
57     match_str,
58 )
59
60
61 class TestUtil(unittest.TestCase):
62     def test_timeconvert(self):
63         self.assertTrue(timeconvert('') is None)
64         self.assertTrue(timeconvert('bougrg') is None)
65
66     def test_sanitize_filename(self):
67         self.assertEqual(sanitize_filename('abc'), 'abc')
68         self.assertEqual(sanitize_filename('abc_d-e'), 'abc_d-e')
69
70         self.assertEqual(sanitize_filename('123'), '123')
71
72         self.assertEqual('abc_de', sanitize_filename('abc/de'))
73         self.assertFalse('/' in sanitize_filename('abc/de///'))
74
75         self.assertEqual('abc_de', sanitize_filename('abc/<>\\*|de'))
76         self.assertEqual('xxx', sanitize_filename('xxx/<>\\*|'))
77         self.assertEqual('yes no', sanitize_filename('yes? no'))
78         self.assertEqual('this - that', sanitize_filename('this: that'))
79
80         self.assertEqual(sanitize_filename('AT&T'), 'AT&T')
81         aumlaut = 'ä'
82         self.assertEqual(sanitize_filename(aumlaut), aumlaut)
83         tests = '\u043a\u0438\u0440\u0438\u043b\u043b\u0438\u0446\u0430'
84         self.assertEqual(sanitize_filename(tests), tests)
85
86         self.assertEqual(
87             sanitize_filename('New World record at 0:12:34'),
88             'New World record at 0_12_34')
89
90         self.assertEqual(sanitize_filename('--gasdgf'), '_-gasdgf')
91         self.assertEqual(sanitize_filename('--gasdgf', is_id=True), '--gasdgf')
92         self.assertEqual(sanitize_filename('.gasdgf'), 'gasdgf')
93         self.assertEqual(sanitize_filename('.gasdgf', is_id=True), '.gasdgf')
94
95         forbidden = '"\0\\/'
96         for fc in forbidden:
97             for fbc in forbidden:
98                 self.assertTrue(fbc not in sanitize_filename(fc))
99
100     def test_sanitize_filename_restricted(self):
101         self.assertEqual(sanitize_filename('abc', restricted=True), 'abc')
102         self.assertEqual(sanitize_filename('abc_d-e', restricted=True), 'abc_d-e')
103
104         self.assertEqual(sanitize_filename('123', restricted=True), '123')
105
106         self.assertEqual('abc_de', sanitize_filename('abc/de', restricted=True))
107         self.assertFalse('/' in sanitize_filename('abc/de///', restricted=True))
108
109         self.assertEqual('abc_de', sanitize_filename('abc/<>\\*|de', restricted=True))
110         self.assertEqual('xxx', sanitize_filename('xxx/<>\\*|', restricted=True))
111         self.assertEqual('yes_no', sanitize_filename('yes? no', restricted=True))
112         self.assertEqual('this_-_that', sanitize_filename('this: that', restricted=True))
113
114         tests = 'a\xe4b\u4e2d\u56fd\u7684c'
115         self.assertEqual(sanitize_filename(tests, restricted=True), 'a_b_c')
116         self.assertTrue(sanitize_filename('\xf6', restricted=True) != '')  # No empty filename
117
118         forbidden = '"\0\\/&!: \'\t\n()[]{}$;`^,#'
119         for fc in forbidden:
120             for fbc in forbidden:
121                 self.assertTrue(fbc not in sanitize_filename(fc, restricted=True))
122
123         # Handle a common case more neatly
124         self.assertEqual(sanitize_filename('\u5927\u58f0\u5e26 - Song', restricted=True), 'Song')
125         self.assertEqual(sanitize_filename('\u603b\u7edf: Speech', restricted=True), 'Speech')
126         # .. but make sure the file name is never empty
127         self.assertTrue(sanitize_filename('-', restricted=True) != '')
128         self.assertTrue(sanitize_filename(':', restricted=True) != '')
129
130     def test_sanitize_ids(self):
131         self.assertEqual(sanitize_filename('_n_cd26wFpw', is_id=True), '_n_cd26wFpw')
132         self.assertEqual(sanitize_filename('_BD_eEpuzXw', is_id=True), '_BD_eEpuzXw')
133         self.assertEqual(sanitize_filename('N0Y__7-UOdI', is_id=True), 'N0Y__7-UOdI')
134
135     def test_sanitize_path(self):
136         if sys.platform != 'win32':
137             return
138
139         self.assertEqual(sanitize_path('abc'), 'abc')
140         self.assertEqual(sanitize_path('abc/def'), 'abc\\def')
141         self.assertEqual(sanitize_path('abc\\def'), 'abc\\def')
142         self.assertEqual(sanitize_path('abc|def'), 'abc#def')
143         self.assertEqual(sanitize_path('<>:"|?*'), '#######')
144         self.assertEqual(sanitize_path('C:/abc/def'), 'C:\\abc\\def')
145         self.assertEqual(sanitize_path('C?:/abc/def'), 'C##\\abc\\def')
146
147         self.assertEqual(sanitize_path('\\\\?\\UNC\\ComputerName\\abc'), '\\\\?\\UNC\\ComputerName\\abc')
148         self.assertEqual(sanitize_path('\\\\?\\UNC/ComputerName/abc'), '\\\\?\\UNC\\ComputerName\\abc')
149
150         self.assertEqual(sanitize_path('\\\\?\\C:\\abc'), '\\\\?\\C:\\abc')
151         self.assertEqual(sanitize_path('\\\\?\\C:/abc'), '\\\\?\\C:\\abc')
152         self.assertEqual(sanitize_path('\\\\?\\C:\\ab?c\\de:f'), '\\\\?\\C:\\ab#c\\de#f')
153         self.assertEqual(sanitize_path('\\\\?\\C:\\abc'), '\\\\?\\C:\\abc')
154
155         self.assertEqual(
156             sanitize_path('youtube/%(uploader)s/%(autonumber)s-%(title)s-%(upload_date)s.%(ext)s'),
157             'youtube\\%(uploader)s\\%(autonumber)s-%(title)s-%(upload_date)s.%(ext)s')
158
159         self.assertEqual(
160             sanitize_path('youtube/TheWreckingYard ./00001-Not bad, Especially for Free! (1987 Yamaha 700)-20141116.mp4.part'),
161             'youtube\\TheWreckingYard #\\00001-Not bad, Especially for Free! (1987 Yamaha 700)-20141116.mp4.part')
162         self.assertEqual(sanitize_path('abc/def...'), 'abc\\def..#')
163         self.assertEqual(sanitize_path('abc.../def'), 'abc..#\\def')
164         self.assertEqual(sanitize_path('abc.../def...'), 'abc..#\\def..#')
165
166     def test_ordered_set(self):
167         self.assertEqual(orderedSet([1, 1, 2, 3, 4, 4, 5, 6, 7, 3, 5]), [1, 2, 3, 4, 5, 6, 7])
168         self.assertEqual(orderedSet([]), [])
169         self.assertEqual(orderedSet([1]), [1])
170         # keep the list ordered
171         self.assertEqual(orderedSet([135, 1, 1, 1]), [135, 1])
172
173     def test_unescape_html(self):
174         self.assertEqual(unescapeHTML('%20;'), '%20;')
175         self.assertEqual(
176             unescapeHTML('&eacute;'), 'é')
177
178     def test_daterange(self):
179         _20century = DateRange("19000101", "20000101")
180         self.assertFalse("17890714" in _20century)
181         _ac = DateRange("00010101")
182         self.assertTrue("19690721" in _ac)
183         _firstmilenium = DateRange(end="10000101")
184         self.assertTrue("07110427" in _firstmilenium)
185
186     def test_unified_dates(self):
187         self.assertEqual(unified_strdate('December 21, 2010'), '20101221')
188         self.assertEqual(unified_strdate('8/7/2009'), '20090708')
189         self.assertEqual(unified_strdate('Dec 14, 2012'), '20121214')
190         self.assertEqual(unified_strdate('2012/10/11 01:56:38 +0000'), '20121011')
191         self.assertEqual(unified_strdate('1968 12 10'), '19681210')
192         self.assertEqual(unified_strdate('1968-12-10'), '19681210')
193         self.assertEqual(unified_strdate('28/01/2014 21:00:00 +0100'), '20140128')
194         self.assertEqual(
195             unified_strdate('11/26/2014 11:30:00 AM PST', day_first=False),
196             '20141126')
197         self.assertEqual(
198             unified_strdate('2/2/2015 6:47:40 PM', day_first=False),
199             '20150202')
200
201     def test_find_xpath_attr(self):
202         testxml = '''<root>
203             <node/>
204             <node x="a"/>
205             <node x="a" y="c" />
206             <node x="b" y="d" />
207         </root>'''
208         doc = xml.etree.ElementTree.fromstring(testxml)
209
210         self.assertEqual(find_xpath_attr(doc, './/fourohfour', 'n', 'v'), None)
211         self.assertEqual(find_xpath_attr(doc, './/node', 'x', 'a'), doc[1])
212         self.assertEqual(find_xpath_attr(doc, './/node', 'y', 'c'), doc[2])
213
214     def test_xpath_with_ns(self):
215         testxml = '''<root xmlns:media="http://example.com/">
216             <media:song>
217                 <media:author>The Author</media:author>
218                 <url>http://server.com/download.mp3</url>
219             </media:song>
220         </root>'''
221         doc = xml.etree.ElementTree.fromstring(testxml)
222         find = lambda p: doc.find(xpath_with_ns(p, {'media': 'http://example.com/'}))
223         self.assertTrue(find('media:song') is not None)
224         self.assertEqual(find('media:song/media:author').text, 'The Author')
225         self.assertEqual(find('media:song/url').text, 'http://server.com/download.mp3')
226
227     def test_smuggle_url(self):
228         data = {"ö": "ö", "abc": [3]}
229         url = 'https://foo.bar/baz?x=y#a'
230         smug_url = smuggle_url(url, data)
231         unsmug_url, unsmug_data = unsmuggle_url(smug_url)
232         self.assertEqual(url, unsmug_url)
233         self.assertEqual(data, unsmug_data)
234
235         res_url, res_data = unsmuggle_url(url)
236         self.assertEqual(res_url, url)
237         self.assertEqual(res_data, None)
238
239     def test_shell_quote(self):
240         args = ['ffmpeg', '-i', encodeFilename('ñ€ß\'.mp4')]
241         self.assertEqual(shell_quote(args), """ffmpeg -i 'ñ€ß'"'"'.mp4'""")
242
243     def test_str_to_int(self):
244         self.assertEqual(str_to_int('123,456'), 123456)
245         self.assertEqual(str_to_int('123.456'), 123456)
246
247     def test_url_basename(self):
248         self.assertEqual(url_basename('http://foo.de/'), '')
249         self.assertEqual(url_basename('http://foo.de/bar/baz'), 'baz')
250         self.assertEqual(url_basename('http://foo.de/bar/baz?x=y'), 'baz')
251         self.assertEqual(url_basename('http://foo.de/bar/baz#x=y'), 'baz')
252         self.assertEqual(url_basename('http://foo.de/bar/baz/'), 'baz')
253         self.assertEqual(
254             url_basename('http://media.w3.org/2010/05/sintel/trailer.mp4'),
255             'trailer.mp4')
256
257     def test_parse_duration(self):
258         self.assertEqual(parse_duration(None), None)
259         self.assertEqual(parse_duration(False), None)
260         self.assertEqual(parse_duration('invalid'), None)
261         self.assertEqual(parse_duration('1'), 1)
262         self.assertEqual(parse_duration('1337:12'), 80232)
263         self.assertEqual(parse_duration('9:12:43'), 33163)
264         self.assertEqual(parse_duration('12:00'), 720)
265         self.assertEqual(parse_duration('00:01:01'), 61)
266         self.assertEqual(parse_duration('x:y'), None)
267         self.assertEqual(parse_duration('3h11m53s'), 11513)
268         self.assertEqual(parse_duration('3h 11m 53s'), 11513)
269         self.assertEqual(parse_duration('3 hours 11 minutes 53 seconds'), 11513)
270         self.assertEqual(parse_duration('3 hours 11 mins 53 secs'), 11513)
271         self.assertEqual(parse_duration('62m45s'), 3765)
272         self.assertEqual(parse_duration('6m59s'), 419)
273         self.assertEqual(parse_duration('49s'), 49)
274         self.assertEqual(parse_duration('0h0m0s'), 0)
275         self.assertEqual(parse_duration('0m0s'), 0)
276         self.assertEqual(parse_duration('0s'), 0)
277         self.assertEqual(parse_duration('01:02:03.05'), 3723.05)
278         self.assertEqual(parse_duration('T30M38S'), 1838)
279         self.assertEqual(parse_duration('5 s'), 5)
280         self.assertEqual(parse_duration('3 min'), 180)
281         self.assertEqual(parse_duration('2.5 hours'), 9000)
282         self.assertEqual(parse_duration('02:03:04'), 7384)
283         self.assertEqual(parse_duration('01:02:03:04'), 93784)
284         self.assertEqual(parse_duration('1 hour 3 minutes'), 3780)
285
286     def test_fix_xml_ampersands(self):
287         self.assertEqual(
288             fix_xml_ampersands('"&x=y&z=a'), '"&amp;x=y&amp;z=a')
289         self.assertEqual(
290             fix_xml_ampersands('"&amp;x=y&wrong;&z=a'),
291             '"&amp;x=y&amp;wrong;&amp;z=a')
292         self.assertEqual(
293             fix_xml_ampersands('&amp;&apos;&gt;&lt;&quot;'),
294             '&amp;&apos;&gt;&lt;&quot;')
295         self.assertEqual(
296             fix_xml_ampersands('&#1234;&#x1abC;'), '&#1234;&#x1abC;')
297         self.assertEqual(fix_xml_ampersands('&#&#'), '&amp;#&amp;#')
298
299     def test_paged_list(self):
300         def testPL(size, pagesize, sliceargs, expected):
301             def get_page(pagenum):
302                 firstid = pagenum * pagesize
303                 upto = min(size, pagenum * pagesize + pagesize)
304                 for i in range(firstid, upto):
305                     yield i
306
307             pl = OnDemandPagedList(get_page, pagesize)
308             got = pl.getslice(*sliceargs)
309             self.assertEqual(got, expected)
310
311             iapl = InAdvancePagedList(get_page, size // pagesize + 1, pagesize)
312             got = iapl.getslice(*sliceargs)
313             self.assertEqual(got, expected)
314
315         testPL(5, 2, (), [0, 1, 2, 3, 4])
316         testPL(5, 2, (1,), [1, 2, 3, 4])
317         testPL(5, 2, (2,), [2, 3, 4])
318         testPL(5, 2, (4,), [4])
319         testPL(5, 2, (0, 3), [0, 1, 2])
320         testPL(5, 2, (1, 4), [1, 2, 3])
321         testPL(5, 2, (2, 99), [2, 3, 4])
322         testPL(5, 2, (20, 99), [])
323
324     def test_struct_unpack(self):
325         self.assertEqual(struct_unpack('!B', b'\x00'), (0,))
326
327     def test_read_batch_urls(self):
328         f = io.StringIO('''\xef\xbb\xbf foo
329             bar\r
330             baz
331             # More after this line\r
332             ; or after this
333             bam''')
334         self.assertEqual(read_batch_urls(f), ['foo', 'bar', 'baz', 'bam'])
335
336     def test_urlencode_postdata(self):
337         data = urlencode_postdata({'username': 'foo@bar.com', 'password': '1234'})
338         self.assertTrue(isinstance(data, bytes))
339
340     def test_parse_iso8601(self):
341         self.assertEqual(parse_iso8601('2014-03-23T23:04:26+0100'), 1395612266)
342         self.assertEqual(parse_iso8601('2014-03-23T22:04:26+0000'), 1395612266)
343         self.assertEqual(parse_iso8601('2014-03-23T22:04:26Z'), 1395612266)
344         self.assertEqual(parse_iso8601('2014-03-23T22:04:26.1234Z'), 1395612266)
345
346     def test_strip_jsonp(self):
347         stripped = strip_jsonp('cb ([ {"id":"532cb",\n\n\n"x":\n3}\n]\n);')
348         d = json.loads(stripped)
349         self.assertEqual(d, [{"id": "532cb", "x": 3}])
350
351         stripped = strip_jsonp('parseMetadata({"STATUS":"OK"})\n\n\n//epc')
352         d = json.loads(stripped)
353         self.assertEqual(d, {'STATUS': 'OK'})
354
355     def test_uppercase_escape(self):
356         self.assertEqual(uppercase_escape('aä'), 'aä')
357         self.assertEqual(uppercase_escape('\\U0001d550'), '𝕐')
358
359     def test_limit_length(self):
360         self.assertEqual(limit_length(None, 12), None)
361         self.assertEqual(limit_length('foo', 12), 'foo')
362         self.assertTrue(
363             limit_length('foo bar baz asd', 12).startswith('foo bar'))
364         self.assertTrue('...' in limit_length('foo bar baz asd', 12))
365
366     def test_escape_rfc3986(self):
367         reserved = "!*'();:@&=+$,/?#[]"
368         unreserved = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_.~'
369         self.assertEqual(escape_rfc3986(reserved), reserved)
370         self.assertEqual(escape_rfc3986(unreserved), unreserved)
371         self.assertEqual(escape_rfc3986('тест'), '%D1%82%D0%B5%D1%81%D1%82')
372         self.assertEqual(escape_rfc3986('%D1%82%D0%B5%D1%81%D1%82'), '%D1%82%D0%B5%D1%81%D1%82')
373         self.assertEqual(escape_rfc3986('foo bar'), 'foo%20bar')
374         self.assertEqual(escape_rfc3986('foo%20bar'), 'foo%20bar')
375
376     def test_escape_url(self):
377         self.assertEqual(
378             escape_url('http://wowza.imust.org/srv/vod/telemb/new/UPLOAD/UPLOAD/20224_IncendieHavré_FD.mp4'),
379             'http://wowza.imust.org/srv/vod/telemb/new/UPLOAD/UPLOAD/20224_IncendieHavre%CC%81_FD.mp4'
380         )
381         self.assertEqual(
382             escape_url('http://www.ardmediathek.de/tv/Sturm-der-Liebe/Folge-2036-Zu-Mann-und-Frau-erklärt/Das-Erste/Video?documentId=22673108&bcastId=5290'),
383             'http://www.ardmediathek.de/tv/Sturm-der-Liebe/Folge-2036-Zu-Mann-und-Frau-erkl%C3%A4rt/Das-Erste/Video?documentId=22673108&bcastId=5290'
384         )
385         self.assertEqual(
386             escape_url('http://тест.рф/фрагмент'),
387             'http://тест.рф/%D1%84%D1%80%D0%B0%D0%B3%D0%BC%D0%B5%D0%BD%D1%82'
388         )
389         self.assertEqual(
390             escape_url('http://тест.рф/абв?абв=абв#абв'),
391             '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'
392         )
393         self.assertEqual(escape_url('http://vimeo.com/56015672#at=0'), 'http://vimeo.com/56015672#at=0')
394
395     def test_js_to_json_realworld(self):
396         inp = '''{
397             'clip':{'provider':'pseudo'}
398         }'''
399         self.assertEqual(js_to_json(inp), '''{
400             "clip":{"provider":"pseudo"}
401         }''')
402         json.loads(js_to_json(inp))
403
404         inp = '''{
405             'playlist':[{'controls':{'all':null}}]
406         }'''
407         self.assertEqual(js_to_json(inp), '''{
408             "playlist":[{"controls":{"all":null}}]
409         }''')
410
411         inp = '"SAND Number: SAND 2013-7800P\\nPresenter: Tom Russo\\nHabanero Software Training - Xyce Software\\nXyce, Sandia\\u0027s"'
412         json_code = js_to_json(inp)
413         self.assertEqual(json.loads(json_code), json.loads(inp))
414
415     def test_js_to_json_edgecases(self):
416         on = js_to_json("{abc_def:'1\\'\\\\2\\\\\\'3\"4'}")
417         self.assertEqual(json.loads(on), {"abc_def": "1'\\2\\'3\"4"})
418
419         on = js_to_json('{"abc": true}')
420         self.assertEqual(json.loads(on), {'abc': True})
421
422         # Ignore JavaScript code as well
423         on = js_to_json('''{
424             "x": 1,
425             y: "a",
426             z: some.code
427         }''')
428         d = json.loads(on)
429         self.assertEqual(d['x'], 1)
430         self.assertEqual(d['y'], 'a')
431
432     def test_clean_html(self):
433         self.assertEqual(clean_html('a:\nb'), 'a: b')
434         self.assertEqual(clean_html('a:\n   "b"'), 'a:    "b"')
435
436     def test_intlist_to_bytes(self):
437         self.assertEqual(
438             intlist_to_bytes([0, 1, 127, 128, 255]),
439             b'\x00\x01\x7f\x80\xff')
440
441     def test_args_to_str(self):
442         self.assertEqual(
443             args_to_str(['foo', 'ba/r', '-baz', '2 be', '']),
444             'foo ba/r -baz \'2 be\' \'\''
445         )
446
447     def test_parse_filesize(self):
448         self.assertEqual(parse_filesize(None), None)
449         self.assertEqual(parse_filesize(''), None)
450         self.assertEqual(parse_filesize('91 B'), 91)
451         self.assertEqual(parse_filesize('foobar'), None)
452         self.assertEqual(parse_filesize('2 MiB'), 2097152)
453         self.assertEqual(parse_filesize('5 GB'), 5000000000)
454         self.assertEqual(parse_filesize('1.2Tb'), 1200000000000)
455         self.assertEqual(parse_filesize('1,24 KB'), 1240)
456
457     def test_version_tuple(self):
458         self.assertEqual(version_tuple('1'), (1,))
459         self.assertEqual(version_tuple('10.23.344'), (10, 23, 344))
460         self.assertEqual(version_tuple('10.1-6'), (10, 1, 6))  # avconv style
461
462     def test_detect_exe_version(self):
463         self.assertEqual(detect_exe_version('''ffmpeg version 1.2.1
464 built on May 27 2013 08:37:26 with gcc 4.7 (Debian 4.7.3-4)
465 configuration: --prefix=/usr --extra-'''), '1.2.1')
466         self.assertEqual(detect_exe_version('''ffmpeg version N-63176-g1fb4685
467 built on May 15 2014 22:09:06 with gcc 4.8.2 (GCC)'''), 'N-63176-g1fb4685')
468         self.assertEqual(detect_exe_version('''X server found. dri2 connection failed!
469 Trying to open render node...
470 Success at /dev/dri/renderD128.
471 ffmpeg version 2.4.4 Copyright (c) 2000-2014 the FFmpeg ...'''), '2.4.4')
472
473     def test_age_restricted(self):
474         self.assertFalse(age_restricted(None, 10))  # unrestricted content
475         self.assertFalse(age_restricted(1, None))  # unrestricted policy
476         self.assertFalse(age_restricted(8, 10))
477         self.assertTrue(age_restricted(18, 14))
478         self.assertFalse(age_restricted(18, 18))
479
480     def test_is_html(self):
481         self.assertFalse(is_html(b'\x49\x44\x43<html'))
482         self.assertTrue(is_html(b'<!DOCTYPE foo>\xaaa'))
483         self.assertTrue(is_html(  # UTF-8 with BOM
484             b'\xef\xbb\xbf<!DOCTYPE foo>\xaaa'))
485         self.assertTrue(is_html(  # UTF-16-LE
486             b'\xff\xfe<\x00h\x00t\x00m\x00l\x00>\x00\xe4\x00'
487         ))
488         self.assertTrue(is_html(  # UTF-16-BE
489             b'\xfe\xff\x00<\x00h\x00t\x00m\x00l\x00>\x00\xe4'
490         ))
491         self.assertTrue(is_html(  # UTF-32-BE
492             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'))
493         self.assertTrue(is_html(  # UTF-32-LE
494             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'))
495
496     def test_render_table(self):
497         self.assertEqual(
498             render_table(
499                 ['a', 'bcd'],
500                 [[123, 4], [9999, 51]]),
501             'a    bcd\n'
502             '123  4\n'
503             '9999 51')
504
505     def test_match_str(self):
506         self.assertRaises(ValueError, match_str, 'xy>foobar', {})
507         self.assertFalse(match_str('xy', {'x': 1200}))
508         self.assertTrue(match_str('!xy', {'x': 1200}))
509         self.assertTrue(match_str('x', {'x': 1200}))
510         self.assertFalse(match_str('!x', {'x': 1200}))
511         self.assertTrue(match_str('x', {'x': 0}))
512         self.assertFalse(match_str('x>0', {'x': 0}))
513         self.assertFalse(match_str('x>0', {}))
514         self.assertTrue(match_str('x>?0', {}))
515         self.assertTrue(match_str('x>1K', {'x': 1200}))
516         self.assertFalse(match_str('x>2K', {'x': 1200}))
517         self.assertTrue(match_str('x>=1200 & x < 1300', {'x': 1200}))
518         self.assertFalse(match_str('x>=1100 & x < 1200', {'x': 1200}))
519         self.assertFalse(match_str('y=a212', {'y': 'foobar42'}))
520         self.assertTrue(match_str('y=foobar42', {'y': 'foobar42'}))
521         self.assertFalse(match_str('y!=foobar42', {'y': 'foobar42'}))
522         self.assertTrue(match_str('y!=foobar2', {'y': 'foobar42'}))
523         self.assertFalse(match_str(
524             'like_count > 100 & dislike_count <? 50 & description',
525             {'like_count': 90, 'description': 'foo'}))
526         self.assertTrue(match_str(
527             'like_count > 100 & dislike_count <? 50 & description',
528             {'like_count': 190, 'description': 'foo'}))
529         self.assertFalse(match_str(
530             'like_count > 100 & dislike_count <? 50 & description',
531             {'like_count': 190, 'dislike_count': 60, 'description': 'foo'}))
532         self.assertFalse(match_str(
533             'like_count > 100 & dislike_count <? 50 & description',
534             {'like_count': 190, 'dislike_count': 10}))
535
536
537 if __name__ == '__main__':
538     unittest.main()