self = <swh.storage.tests.test_in_memory.TestInMemoryStorage object at 0x7f38475ec748> swh_storage = <swh.storage.in_memory.InMemoryStorage object at 0x7f391c14ef60> sample_data = <swh.storage.tests.storage_data.StorageData object at 0x7f3843321048> def test_revision_get_random(self, swh_storage, sample_data): revision1, revision2, revision3 = sample_data.revisions[:3] > swh_storage.revision_add([revision1, revision2, revision3]) .tox/py3/lib/python3.7/site-packages/swh/storage/tests/storage_tests.py:1078: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ self = <swh.storage.in_memory.InMemoryStorage object at 0x7f391c14ef60> revisions = [Revision(message=b'hello', author=Person(fullname=b'Nicolas Dandrimont <nicolas@example.com> ', name=b'Nicolas Dandri...x96Y\xb2*\x1e~\x14=/\xa5\xeb\xde\x1b'), id=b"\xbe\xb2\x84M\xff0e\x8e'W<\xb4n\xb5Y\x80\xe9t\xb3\x91", extra_headers=())] 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