from __future__ import unicode_literals import errno import io import hashlib import json import os.path import re import types import sys import youtube_dl.extractor from youtube_dl import YoutubeDL from youtube_dl.utils import ( compat_str, preferredencoding, ) def get_params(override=None): PARAMETERS_FILE = os.path.join(os.path.dirname(os.path.abspath(__file__)), "parameters.json") with io.open(PARAMETERS_FILE, encoding='utf-8') as pf: parameters = json.load(pf) if override: parameters.update(override) return parameters def try_rm(filename): """ Remove a file if it exists """ try: os.remove(filename) except OSError as ose: if ose.errno != errno.ENOENT: raise def report_warning(message): ''' Print the message to stderr, it will be prefixed with 'WARNING:' If stderr is a tty file the 'WARNING:' will be colored ''' if sys.stderr.isatty() and os.name != 'nt': _msg_header = '\033[0;33mWARNING:\033[0m' else: _msg_header = 'WARNING:' output = '%s %s\n' % (_msg_header, message) if 'b' in getattr(sys.stderr, 'mode', '') or sys.version_info[0] < 3: output = output.encode(preferredencoding()) sys.stderr.write(output) class FakeYDL(YoutubeDL): def __init__(self, override=None): # Different instances of the downloader can't share the same dictionary # some test set the "sublang" parameter, which would break the md5 checks. params = get_params(override=override) super(FakeYDL, self).__init__(params) self.result = [] def to_screen(self, s, skip_eol=None): print(s) def trouble(self, s, tb=None): raise Exception(s) def download(self, x): self.result.append(x) def expect_warning(self, regex): # Silence an expected warning matching a regex old_report_warning = self.report_warning def report_warning(self, message): if re.match(regex, message): return old_report_warning(message) self.report_warning = types.MethodType(report_warning, self) def gettestcases(include_onlymatching=False): for ie in youtube_dl.extractor.gen_extractors(): t = getattr(ie, '_TEST', None) if t: assert not hasattr(ie, '_TESTS'), \ '%s has _TEST and _TESTS' % type(ie).__name__ tests = [t] else: tests = getattr(ie, '_TESTS', []) for t in tests: if not include_onlymatching and t.get('only_matching', False): continue t['name'] = type(ie).__name__[:-len('IE')] yield t md5 = lambda s: hashlib.md5(s.encode('utf-8')).hexdigest() def expect_info_dict(self, expected_dict, got_dict): for info_field, expected in expected_dict.items(): if isinstance(expected, compat_str) and expected.startswith('re:'): got = got_dict.get(info_field) match_str = expected[len('re:'):] match_rex = re.compile(match_str) self.assertTrue( isinstance(got, compat_str), 'Expected a %s object, but got %s for field %s' % ( compat_str.__name__, type(got).__name__, info_field)) self.assertTrue( match_rex.match(got), 'field %s (value: %r) should match %r' % (info_field, got, match_str)) elif isinstance(expected, type): got = got_dict.get(info_field) self.assertTrue(isinstance(got, expected), 'Expected type %r for field %s, but got value %r of type %r' % (expected, info_field, got, type(got))) else: if isinstance(expected, compat_str) and expected.startswith('md5:'): got = 'md5:' + md5(got_dict.get(info_field)) else: got = got_dict.get(info_field) self.assertEqual(expected, got, 'invalid value for field %s, expected %r, got %r' % (info_field, expected, got)) # Check for the presence of mandatory fields if got_dict.get('_type') != 'playlist': for key in ('id', 'url', 'title', 'ext'): self.assertTrue(got_dict.get(key), 'Missing mandatory field %s' % key) # Check for mandatory fields that are automatically set by YoutubeDL for key in ['webpage_url', 'extractor', 'extractor_key']: self.assertTrue(got_dict.get(key), 'Missing field: %s' % key) # Are checkable fields missing from the test case definition? test_info_dict = dict((key, value if not isinstance(value, compat_str) or len(value) < 250 else 'md5:' + md5(value)) for key, value in got_dict.items() if value and key in ('title', 'description', 'uploader', 'upload_date', 'timestamp', 'uploader_id', 'location')) missing_keys = set(test_info_dict.keys()) - set(expected_dict.keys()) if missing_keys: sys.stderr.write('\n"info_dict": ' + json.dumps(test_info_dict, ensure_ascii=False, indent=4) + '\n') self.assertFalse( missing_keys, 'Missing keys in test definition: %s' % ( ', '.join(sorted(missing_keys)))) def assertRegexpMatches(self, text, regexp, msg=None): if hasattr(self, 'assertRegexp'): return self.assertRegexp(text, regexp, msg) else: m = re.match(regexp, text) if not m: note = 'Regexp didn\'t match: %r not found in %r' % (regexp, text) if msg is None: msg = note else: msg = note + ', ' + msg self.assertTrue(m, msg) def assertGreaterEqual(self, got, expected, msg=None): if not (got >= expected): if msg is None: msg = '%r not greater than or equal to %r' % (got, expected) self.assertTrue(got >= expected, msg)