archive_data = <swh.web.tests.conftest._ArchiveData object at 0x7f7115b8d4e0> @given(directory_with_subdirs()) > def test_get_swhids_info_directory_context(archive_data, directory): .tox/py3/lib/python3.7/site-packages/swh/web/tests/common/test_identifiers.py:141: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ .tox/py3/lib/python3.7/site-packages/swh/web/tests/common/test_identifiers.py:159: in test_get_swhids_info_directory_context dir_subdir_file = random.choice(dir_subdir_files) _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ self = <random.Random object at 0x18ad8d8>, seq = [] def choice(self, seq): """Choose a random element from a non-empty sequence.""" try: i = self._randbelow(len(seq)) except ValueError: > raise IndexError('Cannot choose from an empty sequence') from None E IndexError: Cannot choose from an empty sequence /usr/lib/python3.7/random.py:261: IndexError