test/helper.py

   1 import errno
   2 import io
   3 import json
   4 import os.path
   5 import re
   6 import types
   7
   8 import youtube_dl.extractor
   9 from youtube_dl import YoutubeDL, YoutubeDLHandler
  10 from youtube_dl.utils import (
  11     compat_cookiejar,
  12     compat_urllib_request,
  13 )
  14
  15 # General configuration (from __init__, not very elegant...)
  16 jar = compat_cookiejar.CookieJar()
  17 cookie_processor = compat_urllib_request.HTTPCookieProcessor(jar)
  18 proxy_handler = compat_urllib_request.ProxyHandler()
  19 opener = compat_urllib_request.build_opener(proxy_handler, cookie_processor, YoutubeDLHandler())
  20 compat_urllib_request.install_opener(opener)
  21
  22 PARAMETERS_FILE = os.path.join(os.path.dirname(os.path.abspath(__file__)), "parameters.json")
  23 with io.open(PARAMETERS_FILE, encoding='utf-8') as pf:
  24     parameters = json.load(pf)
  25
  26
  27 def try_rm(filename):
  28     """ Remove a file if it exists """
  29     try:
  30         os.remove(filename)
  31     except OSError as ose:
  32         if ose.errno != errno.ENOENT:
  33             raise
  34
  35
  36 class FakeYDL(YoutubeDL):
  37     def __init__(self):
  38         # Different instances of the downloader can't share the same dictionary
  39         # some test set the "sublang" parameter, which would break the md5 checks.
  40         params = dict(parameters)
  41         super(FakeYDL, self).__init__(params)
  42         self.result = []
  43
  44     def to_screen(self, s, skip_eol=None):
  45         print(s)
  46
  47     def trouble(self, s, tb=None):
  48         raise Exception(s)
  49
  50     def download(self, x):
  51         self.result.append(x)
  52
  53     def expect_warning(self, regex):
  54         # Silence an expected warning matching a regex
  55         old_report_warning = self.report_warning
  56         def report_warning(self, message):
  57             if re.match(regex, message): return
  58             old_report_warning(message)
  59         self.report_warning = types.MethodType(report_warning, self)
  60
  61 def get_testcases():
  62     for ie in youtube_dl.extractor.gen_extractors():
  63         t = getattr(ie, '_TEST', None)
  64         if t:
  65             t['name'] = type(ie).__name__[:-len('IE')]
  66             yield t
  67         for t in getattr(ie, '_TESTS', []):
  68             t['name'] = type(ie).__name__[:-len('IE')]
  69             yield t