self = <swh.storage.tests.test_tenacious.TestTenaciousStorage object at 0x7fb96cd346a0> swh_storage = <swh.storage.proxies.tenacious.TenaciousProxyStorage object at 0x7fb763564588> sample_data = <swh.storage.tests.storage_data.StorageData object at 0x7fb7992c8f28> limit = 2 @pytest.mark.parametrize("limit", [1, 2, 3, 4, 5]) def test_directory_get_entries(self, swh_storage, sample_data, limit): dir_ = sample_data.directory3 swh_storage.directory_add(sample_data.directories) actual_data = list( > stream_results(swh_storage.directory_get_entries, dir_.id, limit=limit,) ) .tox/py3/lib/python3.7/site-packages/swh/storage/tests/storage_tests.py:945: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ .tox/py3/lib/python3.7/site-packages/swh/core/api/classes.py:40: in stream_results yield from _stream_results(f, *args, page_token=None, **kwargs) _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ f = <bound method CassandraStorage.directory_get_entries of <swh.storage.in_memory.InMemoryStorage object at 0x7fb763564ac8>> page_token = None args = (b'\x13\x08\x9enTOx\xdf|\x9a@\xa3\x05\x90P\xd1\r\xeehj',) kwargs = {'limit': 2}, page_result = None def _stream_results(f, *args, page_token, **kwargs): """Helper for stream_results() and stream_results_optional()""" while True: page_result = f(*args, page_token=page_token, **kwargs) > yield from page_result.results E AttributeError: 'NoneType' object has no attribute 'results' .tox/py3/lib/python3.7/site-packages/swh/core/api/classes.py:26: AttributeError