#!/usr/bin/env python from __future__ import unicode_literals # Allow direct execution import os import sys import unittest sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__)))) from test.helper import ( assertGreaterEqual, expect_warnings, get_params, gettestcases, expect_info_dict, try_rm, report_warning, ) import hashlib import io import json import socket import youtube_dl.YoutubeDL from youtube_dl.compat import ( compat_http_client, compat_urllib_error, compat_HTTPError, ) from youtube_dl.utils import ( DownloadError, ExtractorError, format_bytes, UnavailableVideoError, ) from youtube_dl.extractor import get_info_extractor RETRIES = 3 class YoutubeDL(youtube_dl.YoutubeDL): def __init__(self, *args, **kwargs): self.to_stderr = self.to_screen self.processed_info_dicts = [] super(YoutubeDL, self).__init__(*args, **kwargs) def report_warning(self, message): # Don't accept warnings during tests raise ExtractorError(message) def process_info(self, info_dict): self.processed_info_dicts.append(info_dict) return super(YoutubeDL, self).process_info(info_dict) def _file_md5(fn): with open(fn, 'rb') as f: return hashlib.md5(f.read()).hexdigest() defs = gettestcases() class TestDownload(unittest.TestCase): # Parallel testing in nosetests. See # http://nose.readthedocs.org/en/latest/doc_tests/test_multiprocess/multiprocess.html _multiprocess_shared_ = True maxDiff = None def __str__(self): """Identify each test with the `add_ie` attribute, if available.""" def strclass(cls): """From 2.7's unittest; 2.6 had _strclass so we can't import it.""" return '%s.%s' % (cls.__module__, cls.__name__) add_ie = getattr(self, self._testMethodName).add_ie return '%s (%s)%s:' % (self._testMethodName, strclass(self.__class__), ' [%s]' % add_ie if add_ie else '') def setUp(self): self.defs = defs # Dynamically generate tests def generator(test_case, tname): def test_template(self): ie = youtube_dl.extractor.get_info_extractor(test_case['name'])() other_ies = [get_info_extractor(ie_key)() for ie_key in test_case.get('add_ie', [])] is_playlist = any(k.startswith('playlist') for k in test_case) test_cases = test_case.get( 'playlist', [] if is_playlist else [test_case]) def print_skipping(reason): print('Skipping %s: %s' % (test_case['name'], reason)) if not ie.working(): print_skipping('IE marked as not _WORKING') return for tc in test_cases: info_dict = tc.get('info_dict', {}) if not (info_dict.get('id') and info_dict.get('ext')): raise Exception('Test definition incorrect. The output file cannot be known. Are both \'id\' and \'ext\' keys present?') if 'skip' in test_case: print_skipping(test_case['skip']) return for other_ie in other_ies: if not other_ie.working(): print_skipping('test depends on %sIE, marked as not WORKING' % other_ie.ie_key()) return params = get_params(test_case.get('params', {})) params['outtmpl'] = tname + '_' + params['outtmpl'] if is_playlist and 'playlist' not in test_case: params.setdefault('extract_flat', 'in_playlist') params.setdefault('skip_download', True) ydl = YoutubeDL(params, auto_init=False) ydl.add_default_info_extractors() finished_hook_called = set() def _hook(status): if status['status'] == 'finished': finished_hook_called.add(status['filename']) ydl.add_progress_hook(_hook) expect_warnings(ydl, test_case.get('expected_warnings', [])) def get_tc_filename(tc): return ydl.prepare_filename(tc.get('info_dict', {})) res_dict = None def try_rm_tcs_files(tcs=None): if tcs is None: tcs = test_cases for tc in tcs: tc_filename = get_tc_filename(tc) try_rm(tc_filename) try_rm(tc_filename + '.part') try_rm(os.path.splitext(tc_filename)[0] + '.info.json') try_rm_tcs_files() try: try_num = 1 while True: try: # We're not using .download here since that is just a shim # for outside error handling, and returns the exit code # instead of the result dict. res_dict = ydl.extract_info( test_case['url'], force_generic_extractor=params.get('force_generic_extractor', False)) except (DownloadError, ExtractorError) as err: # Check if the exception is not a network related one 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): raise if try_num == RETRIES: report_warning('%s failed due to network errors, skipping...' % tname) return print('Retrying: {0} failed tries\n\n##########\n\n'.format(try_num)) try_num += 1 else: break if is_playlist: self.assertTrue(res_dict['_type'] in ['playlist', 'multi_video']) self.assertTrue('entries' in res_dict) expect_info_dict(self, res_dict, test_case.get('info_dict', {})) if 'playlist_mincount' in test_case: assertGreaterEqual( self, len(res_dict['entries']), test_case['playlist_mincount'], 'Expected at least %d in playlist %s, but got only %d' % ( test_case['playlist_mincount'], test_case['url'], len(res_dict['entries']))) if 'playlist_count' in test_case: self.assertEqual( len(res_dict['entries']), test_case['playlist_count'], 'Expected %d entries in playlist %s, but got %d.' % ( test_case['playlist_count'], test_case['url'], len(res_dict['entries']), )) if 'playlist_duration_sum' in test_case: got_duration = sum(e['duration'] for e in res_dict['entries']) self.assertEqual( test_case['playlist_duration_sum'], got_duration) # Generalize both playlists and single videos to unified format for # simplicity if 'entries' not in res_dict: res_dict['entries'] = [res_dict] for tc_num, tc in enumerate(test_cases): tc_res_dict = res_dict['entries'][tc_num] # First, check test cases' data against extracted data alone expect_info_dict(self, tc_res_dict, tc.get('info_dict', {})) # Now, check downloaded file consistency tc_filename = get_tc_filename(tc) if not test_case.get('params', {}).get('skip_download', False): self.assertTrue(os.path.exists(tc_filename), msg='Missing file ' + tc_filename) self.assertTrue(tc_filename in finished_hook_called) expected_minsize = tc.get('file_minsize', 10000) if expected_minsize is not None: if params.get('test'): expected_minsize = max(expected_minsize, 10000) got_fsize = os.path.getsize(tc_filename) assertGreaterEqual( self, got_fsize, expected_minsize, 'Expected %s to be at least %s, but it\'s only %s ' % (tc_filename, format_bytes(expected_minsize), format_bytes(got_fsize))) if 'md5' in tc: md5_for_file = _file_md5(tc_filename) self.assertEqual(tc['md5'], md5_for_file) # Finally, check test cases' data again but this time against # extracted data from info JSON file written during processing info_json_fn = os.path.splitext(tc_filename)[0] + '.info.json' self.assertTrue( os.path.exists(info_json_fn), 'Missing info file %s' % info_json_fn) with io.open(info_json_fn, encoding='utf-8') as infof: info_dict = json.load(infof) expect_info_dict(self, info_dict, tc.get('info_dict', {})) finally: try_rm_tcs_files() if is_playlist and res_dict is not None and res_dict.get('entries'): # Remove all other files that may have been extracted if the # extractor returns full results even with extract_flat res_tcs = [{'info_dict': e} for e in res_dict['entries']] try_rm_tcs_files(res_tcs) return test_template # And add them to TestDownload for n, test_case in enumerate(defs): tname = 'test_' + str(test_case['name']) i = 1 while hasattr(TestDownload, tname): tname = 'test_%s_%d' % (test_case['name'], i) i += 1 test_method = generator(test_case, tname) test_method.__name__ = str(tname) ie_list = test_case.get('add_ie') test_method.add_ie = ie_list and ','.join(ie_list) setattr(TestDownload, test_method.__name__, test_method) del test_method if __name__ == '__main__': unittest.main()