public void Spin() { RgbColor origin = ColorUtils.HexToRgb("#f2330d"); IColor result1 = origin.Spin(+30); IColor result2 = origin.Spin(-30); Assert.AreEqual("#f2a60d", result1.ToHex()); Assert.AreEqual("#f20d59", result2.ToHex()); IColor result3 = origin.Spin(+30 + 360); IColor result4 = origin.Spin(-30 - 360); Assert.AreEqual("#f2a60d", result3.ToHex()); Assert.AreEqual("#f20d59", result4.ToHex()); }