def setUp(self):

        self.lss = LowSpeedShaftCost()

        self.lss.low_speed_shaft_mass = 31257.3
        self.lss.year = 2009
        self.lss.month = 12
    def test1(self):

        lss = LowSpeedShaftCost()

        lss.low_speed_shaft_mass = 31257.3
        lss.year = 2009
        lss.month = 12

        check_gradient_unit_test(self, lss)