def setUp(self):

        self.generator = GeneratorCost()

        self.generator.generator_mass = 16699.85
        self.generator.year = 2009
        self.generator.month = 12
        self.generator.drivetrain_design = 'geared'
        self.generator.machine_rating = 5000.0
    def test1(self):

        generator = GeneratorCost()

        generator.generator_mass = 16699.85
        generator.year = 2009
        generator.month = 12
        generator.drivetrain_design = 'geared'
        generator.machine_rating = 5000.0

        check_gradient_unit_test(self, generator)