public void ToHsv_ShouldBeCorrect_AtMaxHue()
{
var hsv = Hsl.FromScaledValues(360, 50, 50).ToHsv();
hsv.RoundedScaledHue.ShouldBe(360);
hsv.RoundedScaledSaturation.ShouldBe(66.67);
hsv.RoundedScaledValue.ShouldBe(75);
}
public void Darker_ShouldDecreaseLightness()
{
var hsl = Hsl.FromScaledValues(240, 100, 20);
hsl.Darker(5).ShouldBeEquivalentTo(hsl.WithScaledLuminance(15));
hsl.Darker(11).ShouldBeEquivalentTo(hsl.WithScaledLuminance(9));
hsl.Darker(30).ShouldBeEquivalentTo(hsl.WithScaledLuminance(0));
}
public void ToRgb_ShouldBeCorrect_AtMaxHue()
{
var rgb = Hsl.FromScaledValues(360, 50, 50).ToRgb();
rgb.ScaledRed.ShouldBeEquivalentTo(191);
rgb.ScaledGreen.ShouldBeEquivalentTo(64);
rgb.ScaledBlue.ShouldBeEquivalentTo(64);
}
public void Lighter_ShouldIncreaseLightness()
{
var hsl = Hsl.FromScaledValues(240, 100, 80);
hsl.Lighter(5).ShouldBeEquivalentTo(hsl.WithScaledLuminance(85));
hsl.Lighter(11).ShouldBeEquivalentTo(hsl.WithScaledLuminance(91));
hsl.Lighter(30).ShouldBeEquivalentTo(hsl.WithScaledLuminance(100));
}
public void ToHsv_ShouldBeCorrect_AtDecimals()
{
var hsv = Hsl.FromScaledValues(60.2, 53, 70.91).ToHsv();
hsv.RoundedScaledHue.ShouldBe(60.2);
hsv.RoundedScaledSaturation.ShouldBe(35.72);
hsv.RoundedScaledValue.ShouldBe(86.33);
}
public void Luminance_ShouldBeClamped()
{
var hsl = Hsl.FromScaledValues(120, 0, -1);
hsl.ScaledLuminance.ShouldBe(0);
hsl = Hsl.FromScaledValues(120, 0, 101);
hsl.ScaledLuminance.ShouldBe(100);
}
public void RoundedScaledLuminance_ShouldRound()
{
// Half-up
var hsl = Hsl.FromScaledValues(240, 100, 59.645);
hsl.RoundedScaledLuminance.ShouldBe(59.65);
// Down
hsl = Hsl.FromScaledValues(240, 100, 59.644);
hsl.RoundedScaledLuminance.ShouldBe(59.64);
}
public void RoundedScaledSaturation_ShouldRound()
{
// Half-up
var hsl = Hsl.FromScaledValues(240, 59.645, 100);
hsl.RoundedScaledSaturation.ShouldBe(59.65);
// Down
hsl = Hsl.FromScaledValues(240, 59.644, 100);
hsl.RoundedScaledSaturation.ShouldBe(59.64);
}
public void RoundedScaledHue_ShouldRound()
{
// Half-up
var hsl = Hsl.FromScaledValues(240.585, 1, 50);
hsl.RoundedScaledHue.ShouldBe(240.59);
// Down
hsl = Hsl.FromScaledValues(240.584, 1, 50);
hsl.RoundedScaledHue.ShouldBe(240.58);
}
public void ToRgb_ShouldBeCorrect_AtDecimals()
{
var rgb = Hsl.FromScaledValues(60.2, 53, 70.91).ToRgb();
rgb.ScaledRed.ShouldBeEquivalentTo(220);
rgb.ScaledGreen.ShouldBeEquivalentTo(220);
rgb.ScaledBlue.ShouldBeEquivalentTo(142);
rgb = Hsl.FromScaledValues(60.5, 53, 70.91).ToRgb();
rgb.ScaledRed.ShouldBeEquivalentTo(219);
rgb.ScaledGreen.ShouldBeEquivalentTo(220);
rgb.ScaledBlue.ShouldBeEquivalentTo(142);
}
// Conversion tool for reference:
// https://www.easyrgb.com/en/convert.php#inputFORM
public IEnumerable <object[]> GetData(MethodInfo methodInfo)
{
yield return(new object[]
{
new ColorData
{
Name = "Black",
Rgb = new Rgb(0, 0, 0),
Hsl = new Hsl(0, 0, 0),
Hsv = new Hsv(0, 0, 0),
Cmyk = new Cmyk(0, 0, 0, 1),
Xyz = new Xyz(0, 0, 0),
Lab = new Lab(0, 0, 0)
}
});
yield return(new object[]
{
new ColorData
{
Name = "White",
Rgb = new Rgb(1, 1, 1),
Hsl = new Hsl(0, 0, 1),
Hsv = new Hsv(0, 0, 1),
Cmyk = new Cmyk(0, 0, 0, 0),
Xyz = new Xyz(95.047, 100, 108.883),
Lab = new Lab(100, 0, 0)
}
});
yield return(new object[]
{
new ColorData
{
Name = "Red",
Rgb = new Rgb(1, 0, 0),
Hsl = new Hsl(0, 1, 0.5),
Hsv = new Hsv(0, 1, 1),
Cmyk = new Cmyk(0, 1, 1, 0),
Xyz = new Xyz(41.2456, 21.2673, 1.9334),
Lab = new Lab(53.2408, 80.0925, 67.2032)
}
});
yield return(new object[]
{
new ColorData
{
Name = "Green",
Rgb = new Rgb(0, 1, 0),
Hsl = Hsl.FromScaledValues(120, 100, 50),
Hsv = Hsv.FromScaledValues(120, 100, 100),
Cmyk = new Cmyk(1, 0, 1, 0),
Xyz = new Xyz(35.7576, 71.5152, 11.9192),
Lab = new Lab(87.7347, -86.1827, 83.1793)
}
});
yield return(new object[]
{
new ColorData
{
Name = "Blue",
Rgb = new Rgb(0, 0, 1),
Hsl = Hsl.FromScaledValues(240, 100, 50),
Hsv = Hsv.FromScaledValues(240, 100, 100),
Cmyk = new Cmyk(1, 1, 0, 0),
Xyz = new Xyz(18.0437, 7.2175, 95.0304),
Lab = new Lab(32.297, 79.1875, -107.8602)
}
});
yield return(new object[]
{
new ColorData
{
Name = "Material Blue",
Rgb = Rgb.FromScaledValues(33, 150, 243),
Hsl = Hsl.FromScaledValues(206.5716, 89.744, 54.118),
Hsv = Hsv.FromScaledValues(206.5716, 86.42, 95.294),
Cmyk = Cmyk.FromScaledValues(86.419753, 38.271604, 0, 4.705882),
Xyz = new Xyz(27.704960365063513, 28.60350077011483, 88.83745176406208),
Lab = new Lab(60.4301, 2.0799, -55.1094)
}
});
yield return(new object[]
{
new ColorData
{
Name = "Purple HEX to HSL/HSV issue",
Rgb = Rgb.FromScaledValues(116, 58, 111),
Hsl = Hsl.FromScaledValues(305.172, 33.333, 34.118),
Hsv = Hsv.FromScaledValues(305.172, 50, 45.49),
Cmyk = Cmyk.FromScaledValues(0, 50, 4.310, 54.510),
Xyz = new Xyz(11.5846, 7.8875, 15.9481),
Lab = new Lab(33.7475, 33.4761, -19.6542)
}
});
}
public void Saturation_ShouldBeClamped()
{
Hsl.FromScaledValues(120, -1, 100).ScaledSaturation.ShouldBe(0);
Hsl.FromScaledValues(120, 101, 100).ScaledSaturation.ShouldBe(100);
}
public void Hue_ShouldBeClamped()
{
Hsl.FromScaledValues(-0.01, 100, 100).ScaledHue.ShouldBe(0);
Hsl.FromScaledValues(360.01, 100, 100).ScaledHue.ShouldBe(360);
}