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[youtubedl] / test / test_download.py
1 #!/usr/bin/env python
2
3 from __future__ import unicode_literals
4
5 # Allow direct execution
6 import os
7 import sys
8 import unittest
9 sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
10
11 from test.helper import (
12 assertGreaterEqual,
13 expect_warnings,
14 get_params,
15 gettestcases,
16 expect_info_dict,
17 try_rm,
18 report_warning,
19 )
20
21
22 import hashlib
23 import io
24 import json
25 import socket
26
27 import youtube_dl.YoutubeDL
28 from youtube_dl.compat import (
29 compat_http_client,
30 compat_urllib_error,
31 compat_HTTPError,
32 )
33 from youtube_dl.utils import (
34 DownloadError,
35 ExtractorError,
36 format_bytes,
37 UnavailableVideoError,
38 )
39 from youtube_dl.extractor import get_info_extractor
40
41 RETRIES = 3
42
43
44 class YoutubeDL(youtube_dl.YoutubeDL):
45 def __init__(self, *args, **kwargs):
46 self.to_stderr = self.to_screen
47 self.processed_info_dicts = []
48 super(YoutubeDL, self).__init__(*args, **kwargs)
49
50 def report_warning(self, message):
51 # Don't accept warnings during tests
52 raise ExtractorError(message)
53
54 def process_info(self, info_dict):
55 self.processed_info_dicts.append(info_dict)
56 return super(YoutubeDL, self).process_info(info_dict)
57
58
59 def _file_md5(fn):
60 with open(fn, 'rb') as f:
61 return hashlib.md5(f.read()).hexdigest()
62
63
64 defs = gettestcases()
65
66
67 class TestDownload(unittest.TestCase):
68 # Parallel testing in nosetests. See
69 # http://nose.readthedocs.org/en/latest/doc_tests/test_multiprocess/multiprocess.html
70 _multiprocess_shared_ = True
71
72 maxDiff = None
73
74 def __str__(self):
75 """Identify each test with the `add_ie` attribute, if available."""
76
77 def strclass(cls):
78 """From 2.7's unittest; 2.6 had _strclass so we can't import it."""
79 return '%s.%s' % (cls.__module__, cls.__name__)
80
81 add_ie = getattr(self, self._testMethodName).add_ie
82 return '%s (%s)%s:' % (self._testMethodName,
83 strclass(self.__class__),
84 ' [%s]' % add_ie if add_ie else '')
85
86 def setUp(self):
87 self.defs = defs
88
89 # Dynamically generate tests
90
91
92 def generator(test_case, tname):
93
94 def test_template(self):
95 ie = youtube_dl.extractor.get_info_extractor(test_case['name'])()
96 other_ies = [get_info_extractor(ie_key)() for ie_key in test_case.get('add_ie', [])]
97 is_playlist = any(k.startswith('playlist') for k in test_case)
98 test_cases = test_case.get(
99 'playlist', [] if is_playlist else [test_case])
100
101 def print_skipping(reason):
102 print('Skipping %s: %s' % (test_case['name'], reason))
103 if not ie.working():
104 print_skipping('IE marked as not _WORKING')
105 return
106
107 for tc in test_cases:
108 info_dict = tc.get('info_dict', {})
109 if not (info_dict.get('id') and info_dict.get('ext')):
110 raise Exception('Test definition incorrect. The output file cannot be known. Are both \'id\' and \'ext\' keys present?')
111
112 if 'skip' in test_case:
113 print_skipping(test_case['skip'])
114 return
115 for other_ie in other_ies:
116 if not other_ie.working():
117 print_skipping('test depends on %sIE, marked as not WORKING' % other_ie.ie_key())
118 return
119
120 params = get_params(test_case.get('params', {}))
121 params['outtmpl'] = tname + '_' + params['outtmpl']
122 if is_playlist and 'playlist' not in test_case:
123 params.setdefault('extract_flat', 'in_playlist')
124 params.setdefault('skip_download', True)
125
126 ydl = YoutubeDL(params, auto_init=False)
127 ydl.add_default_info_extractors()
128 finished_hook_called = set()
129
130 def _hook(status):
131 if status['status'] == 'finished':
132 finished_hook_called.add(status['filename'])
133 ydl.add_progress_hook(_hook)
134 expect_warnings(ydl, test_case.get('expected_warnings', []))
135
136 def get_tc_filename(tc):
137 return ydl.prepare_filename(tc.get('info_dict', {}))
138
139 res_dict = None
140
141 def try_rm_tcs_files(tcs=None):
142 if tcs is None:
143 tcs = test_cases
144 for tc in tcs:
145 tc_filename = get_tc_filename(tc)
146 try_rm(tc_filename)
147 try_rm(tc_filename + '.part')
148 try_rm(os.path.splitext(tc_filename)[0] + '.info.json')
149 try_rm_tcs_files()
150 try:
151 try_num = 1
152 while True:
153 try:
154 # We're not using .download here since that is just a shim
155 # for outside error handling, and returns the exit code
156 # instead of the result dict.
157 res_dict = ydl.extract_info(
158 test_case['url'],
159 force_generic_extractor=params.get('force_generic_extractor', False))
160 except (DownloadError, ExtractorError) as err:
161 # Check if the exception is not a network related one
162 if not err.exc_info[0] in (compat_urllib_error.URLError, socket.timeout, UnavailableVideoError, compat_http_client.BadStatusLine) or (err.exc_info[0] == compat_HTTPError and err.exc_info[1].code == 503):
163 raise
164
165 if try_num == RETRIES:
166 report_warning('%s failed due to network errors, skipping...' % tname)
167 return
168
169 print('Retrying: {0} failed tries\n\n##########\n\n'.format(try_num))
170
171 try_num += 1
172 else:
173 break
174
175 if is_playlist:
176 self.assertTrue(res_dict['_type'] in ['playlist', 'multi_video'])
177 self.assertTrue('entries' in res_dict)
178 expect_info_dict(self, res_dict, test_case.get('info_dict', {}))
179
180 if 'playlist_mincount' in test_case:
181 assertGreaterEqual(
182 self,
183 len(res_dict['entries']),
184 test_case['playlist_mincount'],
185 'Expected at least %d in playlist %s, but got only %d' % (
186 test_case['playlist_mincount'], test_case['url'],
187 len(res_dict['entries'])))
188 if 'playlist_count' in test_case:
189 self.assertEqual(
190 len(res_dict['entries']),
191 test_case['playlist_count'],
192 'Expected %d entries in playlist %s, but got %d.' % (
193 test_case['playlist_count'],
194 test_case['url'],
195 len(res_dict['entries']),
196 ))
197 if 'playlist_duration_sum' in test_case:
198 got_duration = sum(e['duration'] for e in res_dict['entries'])
199 self.assertEqual(
200 test_case['playlist_duration_sum'], got_duration)
201
202 # Generalize both playlists and single videos to unified format for
203 # simplicity
204 if 'entries' not in res_dict:
205 res_dict['entries'] = [res_dict]
206
207 for tc_num, tc in enumerate(test_cases):
208 tc_res_dict = res_dict['entries'][tc_num]
209 # First, check test cases' data against extracted data alone
210 expect_info_dict(self, tc_res_dict, tc.get('info_dict', {}))
211 # Now, check downloaded file consistency
212 tc_filename = get_tc_filename(tc)
213 if not test_case.get('params', {}).get('skip_download', False):
214 self.assertTrue(os.path.exists(tc_filename), msg='Missing file ' + tc_filename)
215 self.assertTrue(tc_filename in finished_hook_called)
216 expected_minsize = tc.get('file_minsize', 10000)
217 if expected_minsize is not None:
218 if params.get('test'):
219 expected_minsize = max(expected_minsize, 10000)
220 got_fsize = os.path.getsize(tc_filename)
221 assertGreaterEqual(
222 self, got_fsize, expected_minsize,
223 'Expected %s to be at least %s, but it\'s only %s ' %
224 (tc_filename, format_bytes(expected_minsize),
225 format_bytes(got_fsize)))
226 if 'md5' in tc:
227 md5_for_file = _file_md5(tc_filename)
228 self.assertEqual(tc['md5'], md5_for_file)
229 # Finally, check test cases' data again but this time against
230 # extracted data from info JSON file written during processing
231 info_json_fn = os.path.splitext(tc_filename)[0] + '.info.json'
232 self.assertTrue(
233 os.path.exists(info_json_fn),
234 'Missing info file %s' % info_json_fn)
235 with io.open(info_json_fn, encoding='utf-8') as infof:
236 info_dict = json.load(infof)
237 expect_info_dict(self, info_dict, tc.get('info_dict', {}))
238 finally:
239 try_rm_tcs_files()
240 if is_playlist and res_dict is not None and res_dict.get('entries'):
241 # Remove all other files that may have been extracted if the
242 # extractor returns full results even with extract_flat
243 res_tcs = [{'info_dict': e} for e in res_dict['entries']]
244 try_rm_tcs_files(res_tcs)
245
246 return test_template
247
248
249 # And add them to TestDownload
250 for n, test_case in enumerate(defs):
251 tname = 'test_' + str(test_case['name'])
252 i = 1
253 while hasattr(TestDownload, tname):
254 tname = 'test_%s_%d' % (test_case['name'], i)
255 i += 1
256 test_method = generator(test_case, tname)
257 test_method.__name__ = str(tname)
258 ie_list = test_case.get('add_ie')
259 test_method.add_ie = ie_list and ','.join(ie_list)
260 setattr(TestDownload, test_method.__name__, test_method)
261 del test_method
262
263
264 if __name__ == '__main__':
265 unittest.main()