yt-dlp/test/test_download.py

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#!/usr/bin/env python3
# Allow direct execution
import os
import sys
import unittest
sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
import collections
import hashlib
import json
from test.helper import (
assertGreaterEqual,
expect_info_dict,
expect_warnings,
get_params,
gettestcases,
getwebpagetestcases,
is_download_test,
report_warning,
try_rm,
)
import yt_dlp.YoutubeDL # isort: split
from yt_dlp.extractor import get_info_extractor
from yt_dlp.networking.exceptions import HTTPError, TransportError
from yt_dlp.utils import (
DownloadError,
ExtractorError,
UnavailableVideoError,
format_bytes,
join_nonempty,
)
RETRIES = 3
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class YoutubeDL(yt_dlp.YoutubeDL):
def __init__(self, *args, **kwargs):
self.to_stderr = self.to_screen
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self.processed_info_dicts = []
super().__init__(*args, **kwargs)
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def report_warning(self, message, *args, **kwargs):
# Don't accept warnings during tests
raise ExtractorError(message)
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def process_info(self, info_dict):
self.processed_info_dicts.append(info_dict.copy())
return super().process_info(info_dict)
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def _file_md5(fn):
with open(fn, 'rb') as f:
return hashlib.md5(f.read()).hexdigest()
normal_test_cases = gettestcases()
webpage_test_cases = getwebpagetestcases()
tests_counter = collections.defaultdict(collections.Counter)
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@is_download_test
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class TestDownload(unittest.TestCase):
# Parallel testing in nosetests. See
# http://nose.readthedocs.org/en/latest/doc_tests/test_multiprocess/multiprocess.html
_multiprocess_shared_ = True
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maxDiff = None
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COMPLETED_TESTS = {}
def __str__(self):
"""Identify each test with the `add_ie` attribute, if available."""
cls, add_ie = type(self), getattr(self, self._testMethodName).add_ie
return f'{self._testMethodName} ({cls.__module__}.{cls.__name__}){f" [{add_ie}]" if add_ie else ""}:'
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# Dynamically generate tests
def generator(test_case, tname):
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def test_template(self):
if self.COMPLETED_TESTS.get(tname):
return
self.COMPLETED_TESTS[tname] = True
ie = yt_dlp.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))
self.skipTest(reason)
if not ie.working():
print_skipping('IE marked as not _WORKING')
for tc in test_cases:
info_dict = tc.get('info_dict', {})
params = tc.get('params', {})
if not info_dict.get('id'):
raise Exception(f'Test {tname} definition incorrect - "id" key is not present')
elif not info_dict.get('ext') and info_dict.get('_type', 'video') == 'video':
if params.get('skip_download') and params.get('ignore_no_formats_error'):
continue
raise Exception(f'Test {tname} definition incorrect - "ext" key must be present to define the output file')
if 'skip' in test_case:
print_skipping(test_case['skip'])
for other_ie in other_ies:
if not other_ie.working():
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print_skipping('test depends on %sIE, marked as not WORKING' % other_ie.ie_key())
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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('playlistend', test_case.get(
'playlist_mincount', test_case.get('playlist_count', -2) + 1))
params.setdefault('skip_download', True)
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ydl = YoutubeDL(params, auto_init=False)
ydl.add_default_info_extractors()
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finished_hook_called = set()
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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(dict(tc.get('info_dict', {})))
res_dict = None
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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')
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try_rm(os.path.splitext(tc_filename)[0] + '.info.json')
try_rm_tcs_files()
try:
try_num = 1
while True:
try:
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# 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 isinstance(err.exc_info[1], (TransportError, UnavailableVideoError)) or (isinstance(err.exc_info[1], HTTPError) and err.exc_info[1].status == 503):
err.msg = f'{getattr(err, "msg", err)} ({tname})'
raise
if try_num == RETRIES:
report_warning('%s failed due to network errors, skipping...' % tname)
return
print(f'Retrying: {try_num} failed tries\n\n##########\n\n')
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'])))
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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', {}))
if tc_res_dict.get('_type', 'video') != 'video':
continue
# Now, check downloaded file consistency
tc_filename = get_tc_filename(tc)
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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
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info_json_fn = os.path.splitext(tc_filename)[0] + '.info.json'
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self.assertTrue(
os.path.exists(info_json_fn),
'Missing info file %s' % info_json_fn)
with 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)
ydl.close()
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return test_template
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# And add them to TestDownload
def inject_tests(test_cases, label=''):
for test_case in test_cases:
name = test_case['name']
tname = join_nonempty('test', name, label, tests_counter[name][label], delim='_')
tests_counter[name][label] += 1
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test_method = generator(test_case, tname)
test_method.__name__ = tname
test_method.add_ie = ','.join(test_case.get('add_ie', []))
setattr(TestDownload, test_method.__name__, test_method)
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inject_tests(normal_test_cases)
# TODO: disable redirection to the IE to ensure we are actually testing the webpage extraction
inject_tests(webpage_test_cases, 'webpage')
def batch_generator(name):
def test_template(self):
for label, num_tests in tests_counter[name].items():
for i in range(num_tests):
test_name = join_nonempty('test', name, label, i, delim='_')
try:
getattr(self, test_name)()
except unittest.SkipTest:
print(f'Skipped {test_name}')
return test_template
for name in tests_counter:
test_method = batch_generator(name)
test_method.__name__ = f'test_{name}_all'
test_method.add_ie = ''
setattr(TestDownload, test_method.__name__, test_method)
del test_method
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if __name__ == '__main__':
unittest.main()