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74 lines
2.5 KiB
74 lines
2.5 KiB
// Copyright (c) Six Labors and contributors.
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// Licensed under the Apache License, Version 2.0.
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using System.Collections.Generic;
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using SixLabors.ImageSharp.ColorSpaces;
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using SixLabors.ImageSharp.ColorSpaces.Conversion;
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using Xunit;
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namespace SixLabors.ImageSharp.Tests.Colorspaces
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{
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/// <summary>
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/// Tests <see cref="Rgb"/>-<see cref="Hsv"/> conversions.
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/// </summary>
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/// <remarks>
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/// Test data generated using:
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/// <see href="http://www.colorhexa.com"/>
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/// </remarks>
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public class RgbAndHsvConversionTest
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{
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private static readonly IEqualityComparer<float> FloatRoundingComparer = new FloatRoundingComparer(4);
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private static readonly ColorSpaceConverter Converter = new ColorSpaceConverter();
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private static readonly ApproximateFloatComparer ApproximateComparer = new ApproximateFloatComparer(0.0001F);
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/// <summary>
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/// Tests conversion from <see cref="Hsv"/> to <see cref="Rgb"/>.
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/// </summary>
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[Theory]
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[InlineData(0, 0, 0, 0, 0, 0)]
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[InlineData(0, 0, 1, 1, 1, 1)]
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[InlineData(360, 1, 1, 1, 0, 0)]
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[InlineData(0, 1, 1, 1, 0, 0)]
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[InlineData(120, 1, 1, 0, 1, 0)]
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[InlineData(240, 1, 1, 0, 0, 1)]
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public void Convert_Hsv_To_Rgb(float h, float s, float v, float r, float g, float b)
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{
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// Arrange
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var input = new Hsv(h, s, v);
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// Act
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Rgb output = Converter.ToRgb(input);
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// Assert
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Assert.Equal(Rgb.DefaultWorkingSpace, output.WorkingSpace, ApproximateComparer);
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Assert.Equal(r, output.R, FloatRoundingComparer);
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Assert.Equal(g, output.G, FloatRoundingComparer);
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Assert.Equal(b, output.B, FloatRoundingComparer);
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}
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/// <summary>
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/// Tests conversion from <see cref="Rgb"/> to <see cref="Hsv"/>.
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/// </summary>
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[Theory]
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[InlineData(0, 0, 0, 0, 0, 0)]
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[InlineData(1, 1, 1, 0, 0, 1)]
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[InlineData(1, 0, 0, 0, 1, 1)]
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[InlineData(0, 1, 0, 120, 1, 1)]
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[InlineData(0, 0, 1, 240, 1, 1)]
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public void Convert_Rgb_To_Hsv(float r, float g, float b, float h, float s, float v)
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{
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// Arrange
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var input = new Rgb(r, g, b);
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// Act
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Hsv output = Converter.ToHsv(input);
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// Assert
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Assert.Equal(h, output.H, FloatRoundingComparer);
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Assert.Equal(s, output.S, FloatRoundingComparer);
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Assert.Equal(v, output.V, FloatRoundingComparer);
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}
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}
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}
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