authenticated_client = <rest_framework.test.APIClient object at 0x7f304a31bc88> deposit_collection = <DepositCollection: {'id': 24, 'name': 'test'}> atom_dataset = {'codemeta-sample': '<?xml version="1.0"?>\n <entry xmlns="http://www.w3.org/2005/Atom"\n xmlns:d...ntry>\n', 'entry-data-empty-body': '<?xml version="1.0"?>\n<entry xmlns="http://www.w3.org/2005/Atom"></entry>\n', ...} def test_post_deposit_atom_400_both_create_origin_and_add_to_origin( authenticated_client, deposit_collection, atom_dataset ): """Posting a badly formatted atom should return a 400 response """ response = post_atom( authenticated_client, reverse(COL_IRI, args=[deposit_collection.name]), data=atom_dataset["entry-data-with-both-create-origin-and-add-to-origin"], ) assert response.status_code == status.HTTP_400_BAD_REQUEST > assert ( b"&lt;swh:create_origin&gt; and &lt;swh:add_to_origin&gt; " b"are mutually exclusive" ) in response.content E assert b'&lt;swh:create_origin&gt; and &lt;swh:add_to_origin&gt; are mutually exclusive' in b'<?xml version="1.0" encoding="utf-8"?>\n<sword:error xmlns="http://www.w3.org/2005/Atom"\n xmlns:sword="...med. Please ensure your metadata file is correctly formatted.\n </sword:verboseDescription>\n \n</sword:error>\n' E + where b'<?xml version="1.0" encoding="utf-8"?>\n<sword:error xmlns="http://www.w3.org/2005/Atom"\n xmlns:sword="...med. Please ensure your metadata file is correctly formatted.\n </sword:verboseDescription>\n \n</sword:error>\n' = <HttpResponse status_code=400, "application/xml">.content .tox/py3/lib/python3.7/site-packages/swh/deposit/tests/api/test_collection_post_atom.py:213: AssertionError