def test_date_to_db(): date_to_db = converters.date_to_db assert date_to_db(None) == {"timestamp": None, "offset": 0, "neg_utc_offset": None} > assert date_to_db( {"timestamp": 1234567890, "offset": 120, "negative_utc": False,} ) == { "timestamp": "2009-02-13T23:31:30+00:00", "offset": 120, "neg_utc_offset": False, } .tox/py3/lib/python3.7/site-packages/swh/storage/tests/test_converters.py:13: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ts_with_tz = {'negative_utc': False, 'offset': 120, 'timestamp': 1234567890} def date_to_db(ts_with_tz: Optional[TimestampWithTimezone]) -> Dict[str, Any]: """Convert a swh-model date_offset to its DB representation. Args: ts_with_tz: a TimestampWithTimezone object Returns: dict: a dictionary with three keys: - timestamp: a date in ISO format - offset: the UTC offset in minutes - neg_utc_offset: a boolean indicating whether a null offset is negative or positive. """ if ts_with_tz is None: return DEFAULT_DATE > ts = ts_with_tz.timestamp E AttributeError: 'dict' object has no attribute 'timestamp' .tox/py3/lib/python3.7/site-packages/swh/storage/converters.py:131: AttributeError