self = <swh.storage.tests.test_in_memory.TestInMemoryStorage object at 0x7f456c4487b8> swh_storage = <swh.storage.in_memory.InMemoryStorage object at 0x7f456c448358> sample_data = <swh.storage.tests.storage_data.StorageData object at 0x7f4548c10240> def test_revision_get_no_parents(self, swh_storage, sample_data): revision = sample_data.revision > swh_storage.revision_add([revision]) .tox/py3/lib/python3.7/site-packages/swh/storage/tests/storage_tests.py:1068: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ self = <swh.storage.in_memory.InMemoryStorage object at 0x7f456c448358> revisions = [Revision(message=b'hello', author=Person(fullname=b'Nicolas Dandrimont <nicolas@example.com> ', name=b'Nicolas Dandri...bb\x12', extra_headers=((b'gpgsig', b'test123'), (b'mergetag', b'foo\\bar'), (b'mergetag', b'"\xaf\x89\x80\x01\x00')))] def revision_add(self, revisions: List[Revision]) -> Dict: # Filter-out revisions already in the database > if not self._allow_overwrite: E AttributeError: 'InMemoryStorage' object has no attribute '_allow_overwrite' .tox/py3/lib/python3.7/site-packages/swh/storage/cassandra/storage.py:526: AttributeError