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  1. from __future__ import unicode_literals
  2. import errno
  3. import io
  4. import hashlib
  5. import json
  6. import os.path
  7. import re
  8. import types
  9. import sys
  10. import youtube_dl.extractor
  11. from youtube_dl import YoutubeDL
  12. from youtube_dl.utils import (
  13. compat_str,
  14. preferredencoding,
  15. write_string,
  16. )
  17. def get_params(override=None):
  18. PARAMETERS_FILE = os.path.join(os.path.dirname(os.path.abspath(__file__)),
  19. "parameters.json")
  20. with io.open(PARAMETERS_FILE, encoding='utf-8') as pf:
  21. parameters = json.load(pf)
  22. if override:
  23. parameters.update(override)
  24. return parameters
  25. def try_rm(filename):
  26. """ Remove a file if it exists """
  27. try:
  28. os.remove(filename)
  29. except OSError as ose:
  30. if ose.errno != errno.ENOENT:
  31. raise
  32. def report_warning(message):
  33. '''
  34. Print the message to stderr, it will be prefixed with 'WARNING:'
  35. If stderr is a tty file the 'WARNING:' will be colored
  36. '''
  37. if sys.stderr.isatty() and os.name != 'nt':
  38. _msg_header = '\033[0;33mWARNING:\033[0m'
  39. else:
  40. _msg_header = 'WARNING:'
  41. output = '%s %s\n' % (_msg_header, message)
  42. if 'b' in getattr(sys.stderr, 'mode', '') or sys.version_info[0] < 3:
  43. output = output.encode(preferredencoding())
  44. sys.stderr.write(output)
  45. class FakeYDL(YoutubeDL):
  46. def __init__(self, override=None):
  47. # Different instances of the downloader can't share the same dictionary
  48. # some test set the "sublang" parameter, which would break the md5 checks.
  49. params = get_params(override=override)
  50. super(FakeYDL, self).__init__(params, auto_init=False)
  51. self.result = []
  52. def to_screen(self, s, skip_eol=None):
  53. print(s)
  54. def trouble(self, s, tb=None):
  55. raise Exception(s)
  56. def download(self, x):
  57. self.result.append(x)
  58. def expect_warning(self, regex):
  59. # Silence an expected warning matching a regex
  60. old_report_warning = self.report_warning
  61. def report_warning(self, message):
  62. if re.match(regex, message):
  63. return
  64. old_report_warning(message)
  65. self.report_warning = types.MethodType(report_warning, self)
  66. def gettestcases(include_onlymatching=False):
  67. for ie in youtube_dl.extractor.gen_extractors():
  68. for tc in ie.get_testcases(include_onlymatching):
  69. yield tc
  70. md5 = lambda s: hashlib.md5(s.encode('utf-8')).hexdigest()
  71. def expect_value(self, got, expected, field):
  72. if isinstance(expected, compat_str) and expected.startswith('re:'):
  73. match_str = expected[len('re:'):]
  74. match_rex = re.compile(match_str)
  75. self.assertTrue(
  76. isinstance(got, compat_str),
  77. 'Expected a %s object, but got %s for field %s' % (
  78. compat_str.__name__, type(got).__name__, field))
  79. self.assertTrue(
  80. match_rex.match(got),
  81. 'field %s (value: %r) should match %r' % (field, got, match_str))
  82. elif isinstance(expected, compat_str) and expected.startswith('startswith:'):
  83. start_str = expected[len('startswith:'):]
  84. self.assertTrue(
  85. isinstance(got, compat_str),
  86. 'Expected a %s object, but got %s for field %s' % (
  87. compat_str.__name__, type(got).__name__, field))
  88. self.assertTrue(
  89. got.startswith(start_str),
  90. 'field %s (value: %r) should start with %r' % (field, got, start_str))
  91. elif isinstance(expected, compat_str) and expected.startswith('contains:'):
  92. contains_str = expected[len('contains:'):]
  93. self.assertTrue(
  94. isinstance(got, compat_str),
  95. 'Expected a %s object, but got %s for field %s' % (
  96. compat_str.__name__, type(got).__name__, field))
  97. self.assertTrue(
  98. contains_str in got,
  99. 'field %s (value: %r) should contain %r' % (field, got, contains_str))
  100. elif isinstance(expected, type):
  101. self.assertTrue(
  102. isinstance(got, expected),
  103. 'Expected type %r for field %s, but got value %r of type %r' % (expected, field, got, type(got)))
  104. elif isinstance(expected, dict) and isinstance(got, dict):
  105. expect_dict(self, got, expected)
  106. elif isinstance(expected, list) and isinstance(got, list):
  107. self.assertEqual(
  108. len(expected), len(got),
  109. 'Expect a list of length %d, but got a list of length %d for field %s' % (
  110. len(expected), len(got), field))
  111. for index, (item_got, item_expected) in enumerate(zip(got, expected)):
  112. type_got = type(item_got)
  113. type_expected = type(item_expected)
  114. self.assertEqual(
  115. type_expected, type_got,
  116. 'Type mismatch for list item at index %d for field %s, expected %r, got %r' % (
  117. index, field, type_expected, type_got))
  118. expect_value(self, item_got, item_expected, field)
  119. else:
  120. if isinstance(expected, compat_str) and expected.startswith('md5:'):
  121. got = 'md5:' + md5(got)
  122. elif isinstance(expected, compat_str) and expected.startswith('mincount:'):
  123. self.assertTrue(
  124. isinstance(got, (list, dict)),
  125. 'Expected field %s to be a list or a dict, but it is of type %s' % (
  126. field, type(got).__name__))
  127. expected_num = int(expected.partition(':')[2])
  128. assertGreaterEqual(
  129. self, len(got), expected_num,
  130. 'Expected %d items in field %s, but only got %d' % (expected_num, field, len(got)))
  131. return
  132. self.assertEqual(
  133. expected, got,
  134. 'Invalid value for field %s, expected %r, got %r' % (field, expected, got))
  135. def expect_dict(self, got_dict, expected_dict):
  136. for info_field, expected in expected_dict.items():
  137. got = got_dict.get(info_field)
  138. expect_value(self, got, expected, info_field)
  139. def expect_info_dict(self, got_dict, expected_dict):
  140. expect_dict(self, got_dict, expected_dict)
  141. # Check for the presence of mandatory fields
  142. if got_dict.get('_type') not in ('playlist', 'multi_video'):
  143. for key in ('id', 'url', 'title', 'ext'):
  144. self.assertTrue(got_dict.get(key), 'Missing mandatory field %s' % key)
  145. # Check for mandatory fields that are automatically set by YoutubeDL
  146. for key in ['webpage_url', 'extractor', 'extractor_key']:
  147. self.assertTrue(got_dict.get(key), 'Missing field: %s' % key)
  148. # Are checkable fields missing from the test case definition?
  149. test_info_dict = dict((key, value if not isinstance(value, compat_str) or len(value) < 250 else 'md5:' + md5(value))
  150. for key, value in got_dict.items()
  151. if value and key in ('id', 'title', 'description', 'uploader', 'upload_date', 'timestamp', 'uploader_id', 'location', 'age_limit'))
  152. missing_keys = set(test_info_dict.keys()) - set(expected_dict.keys())
  153. if missing_keys:
  154. def _repr(v):
  155. if isinstance(v, compat_str):
  156. return "'%s'" % v.replace('\\', '\\\\').replace("'", "\\'").replace('\n', '\\n')
  157. else:
  158. return repr(v)
  159. info_dict_str = ''
  160. if len(missing_keys) != len(expected_dict):
  161. info_dict_str += ''.join(
  162. ' %s: %s,\n' % (_repr(k), _repr(v))
  163. for k, v in test_info_dict.items() if k not in missing_keys)
  164. if info_dict_str:
  165. info_dict_str += '\n'
  166. info_dict_str += ''.join(
  167. ' %s: %s,\n' % (_repr(k), _repr(test_info_dict[k]))
  168. for k in missing_keys)
  169. write_string(
  170. '\n\'info_dict\': {\n' + info_dict_str + '},\n', out=sys.stderr)
  171. self.assertFalse(
  172. missing_keys,
  173. 'Missing keys in test definition: %s' % (
  174. ', '.join(sorted(missing_keys))))
  175. def assertRegexpMatches(self, text, regexp, msg=None):
  176. if hasattr(self, 'assertRegexp'):
  177. return self.assertRegexp(text, regexp, msg)
  178. else:
  179. m = re.match(regexp, text)
  180. if not m:
  181. note = 'Regexp didn\'t match: %r not found' % (regexp)
  182. if len(text) < 1000:
  183. note += ' in %r' % text
  184. if msg is None:
  185. msg = note
  186. else:
  187. msg = note + ', ' + msg
  188. self.assertTrue(m, msg)
  189. def assertGreaterEqual(self, got, expected, msg=None):
  190. if not (got >= expected):
  191. if msg is None:
  192. msg = '%r not greater than or equal to %r' % (got, expected)
  193. self.assertTrue(got >= expected, msg)
  194. def expect_warnings(ydl, warnings_re):
  195. real_warning = ydl.report_warning
  196. def _report_warning(w):
  197. if not any(re.search(w_re, w) for w_re in warnings_re):
  198. real_warning(w)
  199. ydl.report_warning = _report_warning