def test_pause_resume_helper(self, determine_ports, services): f = MagicMock() services.return_value = 's1' determine_ports.return_value = 'p1' with patch.object(nutils, 'assess_status_func') as asf: asf.return_value = 'assessor' nutils._pause_resume_helper(f, 'some-config') asf.assert_called_once_with('some-config') # ports=None whilst port checks are disabled. f.assert_called_once_with('assessor', services='s1', ports=None)