public void ShiftLightnessCeiling()
{
var hsl = new Color.HSL(90, 0.5, 0.5);
Assert.AreEqual(new Color.HSL(90, 0.5, 1.0), hsl.ShiftLightness(0.8));
}
public void ShiftLightnessFloor()
{
var hsl = new Color.HSL(90, 0.5, 0.5);
Assert.AreEqual(new Color.HSL(90, 0.5, 0.0), hsl.ShiftLightness(-0.8));
}
public void ShiftLightnessAddsToLightness()
{
var hsl = new Color.HSL(90, 0.5, 0.5);
Assert.AreEqual(new Color.HSL(90, 0.5, 0.7), hsl.ShiftLightness(0.2));
}