def test_densityScale(self):
        dim = Nondimensional()
        dim._configure()
        dim.setDensityScale(2.0 * kilogram / meter**3)

        self.assertEqual(1.0 * meter, dim.getLengthScale())
        self.assertEqual(1.0 * pascal, dim.getPressureScale())
        self.assertEqual(1.0 * second, dim.getTimeScale())
        self.assertEqual(2.0 * kilogram / meter**3, dim.getDensityScale())
    def test_constructor(self):
        dim = Nondimensional()
        dim._configure()

        self.assertEqual(1.0 * meter, dim.getLengthScale())
        self.assertEqual(1.0 * pascal, dim.getPressureScale())
        self.assertEqual(1.0 * second, dim.getTimeScale())
        self.assertEqual(1.0 * kilogram / meter**3, dim.getDensityScale())
        self.assertEqual(1.0 * kelvin, dim.getTemperatureScale())