Raphaël G. Git Repositories - youtubedl/blob - test/helper.py

   1 import errno
   2 import io
   3 import hashlib
   4 import json
   5 import os.path
   6 import re
   7 import types
   8 import sys
   9
  10 import youtube_dl.extractor
  11 from youtube_dl import YoutubeDL
  12 from youtube_dl.utils import preferredencoding
  13
  14
  15 def get_params(override=None):
  16     PARAMETERS_FILE = os.path.join(os.path.dirname(os.path.abspath(__file__)),
  17                                    "parameters.json")
  18     with io.open(PARAMETERS_FILE, encoding='utf-8') as pf:
  19         parameters = json.load(pf)
  20     if override:
  21         parameters.update(override)
  22     return parameters
  23
  24
  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
  33
  34 def report_warning(message):
  35     '''
  36     Print the message to stderr, it will be prefixed with 'WARNING:'
  37     If stderr is a tty file the 'WARNING:' will be colored
  38     '''
  39     if sys.stderr.isatty() and os.name != 'nt':
  40         _msg_header = u'\033[0;33mWARNING:\033[0m'
  41     else:
  42         _msg_header = u'WARNING:'
  43     output = u'%s %s\n' % (_msg_header, message)
  44     if 'b' in getattr(sys.stderr, 'mode', '') or sys.version_info[0] < 3:
  45         output = output.encode(preferredencoding())
  46     sys.stderr.write(output)
  47
  48
  49 class FakeYDL(YoutubeDL):
  50     def __init__(self, override=None):
  51         # Different instances of the downloader can't share the same dictionary
  52         # some test set the "sublang" parameter, which would break the md5 checks.
  53         params = get_params(override=override)
  54         super(FakeYDL, self).__init__(params)
  55         self.result = []
  56
  57     def to_screen(self, s, skip_eol=None):
  58         print(s)
  59
  60     def trouble(self, s, tb=None):
  61         raise Exception(s)
  62
  63     def download(self, x):
  64         self.result.append(x)
  65
  66     def expect_warning(self, regex):
  67         # Silence an expected warning matching a regex
  68         old_report_warning = self.report_warning
  69         def report_warning(self, message):
  70             if re.match(regex, message): return
  71             old_report_warning(message)
  72         self.report_warning = types.MethodType(report_warning, self)
  73
  74 def get_testcases():
  75     for ie in youtube_dl.extractor.gen_extractors():
  76         t = getattr(ie, '_TEST', None)
  77         if t:
  78             t['name'] = type(ie).__name__[:-len('IE')]
  79             yield t
  80         for t in getattr(ie, '_TESTS', []):
  81             t['name'] = type(ie).__name__[:-len('IE')]
  82             yield t
  83
  84
  85 md5 = lambda s: hashlib.md5(s.encode('utf-8')).hexdigest()