import demistomock as demisto DATE_WITHOUT_MS = '2019-05-03T03:01:54' DATE_WITH_MS = '2019-05-03T03:02:54.123' def init_integration(mocker): mocker.patch.object(demisto, 'params', return_value={ 'URL': 'mock.com' }) def test_fetch_incidents(mocker): init_integration(mocker) import Jask from Jask import fetch_incidents mocker.patch.object(Jask, 'req', return_value={ 'objects': [ { 'timestamp': DATE_WITHOUT_MS }, { 'timestamp': DATE_WITH_MS } ] }) # asserts there are no exceptions assert(fetch_incidents() is None)