self = <swh.storage.tests.test_in_memory.TestInMemoryStorage object at 0x7f3845d350f0> swh_storage = <swh.storage.in_memory.InMemoryStorage object at 0x7f39c07c1cf8> sample_data = <swh.storage.tests.storage_data.StorageData object at 0x7f38869c1be0> def test_revision_add_twice(self, swh_storage, sample_data): revision, revision2 = sample_data.revisions[:2] > actual_result = swh_storage.revision_add([revision]) .tox/py3/lib/python3.7/site-packages/swh/storage/tests/storage_tests.py:947: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ self = <swh.storage.in_memory.InMemoryStorage object at 0x7f39c07c1cf8> 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