def METHOD_NAME(self):
    all_valid_times = self.dut.get_all_valid_times("air_pressure", "ml")
    assert sorted(all_valid_times) == \
        sorted([datetime(2012, 10, 18, 18, 0),
                datetime(2012, 10, 18, 0, 0),
                datetime(2012, 10, 17, 12, 0),
                datetime(2012, 10, 18, 6, 0),
                datetime(2012, 10, 17, 18, 0),
                datetime(2012, 10, 18, 12, 0),
                datetime(2012, 10, 19, 0, 0)])