public void Convert_XYZ_to_Luv(double x, double y, double z, double l, double u, double v)
        {
            // arrange
            var input = new XYZColor(x, y, z);
            var converter = new ColourfulConverter { WhitePoint = Illuminants.D65, TargetLuvWhitePoint = Illuminants.D65 };

            // act
            LuvColor output = converter.ToLuv(input);

            // assert
            Assert.That(output.L, Is.EqualTo(l).Using(DoubleComparerLuvPrecision));
            Assert.That(output.u, Is.EqualTo(u).Using(DoubleComparerLuvPrecision));
            Assert.That(output.v, Is.EqualTo(v).Using(DoubleComparerLuvPrecision));
        }