More tests

tests/ImageSharp.Tests/ColorProfiles/CieLabAndRgbConversionTests.cs

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+// Copyright (c) Six Labors.
+// Licensed under the Six Labors Split License.
+
+using SixLabors.ImageSharp.ColorProfiles;
+
+namespace SixLabors.ImageSharp.Tests.ColorProfiles.Conversion;
+
+/// <summary>
+/// Tests <see cref="CieLab"/>-<see cref="Rgb"/> conversions.
+/// </summary>
+public class CieLabAndRgbConversionTests
+{
+    private static readonly ApproximateColorProfileComparer Comparer = new(.0002F);
+    private static readonly ColorProfileConverter Converter = new();
+
+    [Theory]
+    [InlineData(0, 0, 0, 0, 0, 0)]
+    [InlineData(0.9999999, 0, 0.384345, 55.063, 82.54871, 23.16505)]
+    public void Convert_Rgb_to_CieLab(float r, float g, float b2, float l, float a, float b)
+    {
+        // Arrange
+        Rgb input = new(r, g, b2);
+        CieLab expected = new(l, a, b);
+        ColorProfileConverter converter = new();
+
+        Span<Rgb> inputSpan = new Rgb[5];
+        inputSpan.Fill(input);
+
+        Span<CieLab> actualSpan = new CieLab[5];
+
+        // Act
+        CieLab actual = converter.Convert<Rgb, CieLab>(input);
+        converter.Convert<Rgb, CieLab>(inputSpan, actualSpan);
+
+        // Assert
+        Assert.Equal(expected, actual, Comparer);
+
+        for (int i = 0; i < actualSpan.Length; i++)
+        {
+            Assert.Equal(expected, actualSpan[i], Comparer);
+        }
+    }
+
+    [Theory]
+    [InlineData(0, 0, 0, 0, 0, 0)]
+    [InlineData(55.063, 82.54871, 23.16505, 0.9999999, 0, 0.384345)]
+    public void Convert_CieLab_to_Rgb(float l, float a, float b, float r, float g, float b2)
+    {
+        // Arrange
+        CieLab input = new(l, a, b);
+        Rgb expected = new(r, g, b2);
+        ColorProfileConverter converter = new();
+
+        Span<CieLab> inputSpan = new CieLab[5];
+        inputSpan.Fill(input);
+
+        Span<Rgb> actualSpan = new Rgb[5];
+
+        // Act
+        Rgb actual = converter.Convert<CieLab, Rgb>(input);
+        converter.Convert<CieLab, Rgb>(inputSpan, actualSpan);
+
+        // Assert
+        Assert.Equal(expected, actual, Comparer);
+
+        for (int i = 0; i < actualSpan.Length; i++)
+        {
+            Assert.Equal(expected, actualSpan[i], Comparer);
+        }
+    }
+}

tests/ImageSharp.Tests/ColorProfiles/CieLchuvAndCieLchConversionTests.cs

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+// Copyright (c) Six Labors.
+// Licensed under the Six Labors Split License.
+
+using SixLabors.ImageSharp.ColorProfiles;
+
+namespace SixLabors.ImageSharp.Tests.ColorProfiles.Conversion;
+
+/// <summary>
+/// Tests <see cref="CieLchuv"/>-<see cref="CieLch"/> conversions.
+/// </summary>
+public class CieLchuvAndCieLchConversionTests
+{
+    private static readonly ApproximateColorProfileComparer Comparer = new(.0002F);
+
+    [Theory]
+    [InlineData(0, 0, 0, 0, 0, 0)]
+    [InlineData(36.73742, 64.79149, 30.1786, 36.0555, 103.6901, 10.01513)]
+    public void Convert_CieLch_To_CieLchuv(float l2, float c2, float h2, float l, float c, float h)
+    {
+        // Arrange
+        CieLch input = new(l2, c2, h2);
+        CieLchuv expected = new(l, c, h);
+        ColorConversionOptions options = new() { WhitePoint = Illuminants.D50, TargetWhitePoint = Illuminants.D65 };
+        ColorProfileConverter converter = new(options);
+
+        Span<CieLch> inputSpan = new CieLch[5];
+        inputSpan.Fill(input);
+
+        Span<CieLchuv> actualSpan = new CieLchuv[5];
+
+        // Act
+        CieLchuv actual = converter.Convert<CieLch, CieLchuv>(input);
+        converter.Convert<CieLch, CieLchuv>(inputSpan, actualSpan);
+
+        // Assert
+        Assert.Equal(expected, actual, Comparer);
+
+        for (int i = 0; i < actualSpan.Length; i++)
+        {
+            Assert.Equal(expected, actualSpan[i], Comparer);
+        }
+    }
+
+    [Theory]
+    [InlineData(36.0555, 103.6901, 10.01514, 36.73742, 64.79149, 30.1786)]
+    public void Convert_CieLchuv_To_CieLch(float l, float c, float h, float l2, float c2, float h2)
+    {
+        // Arrange
+        CieLchuv input = new(l, c, h);
+        CieLch expected = new(l2, c2, h2);
+        ColorConversionOptions options = new() { WhitePoint = Illuminants.D65, TargetWhitePoint = Illuminants.D50 };
+        ColorProfileConverter converter = new(options);
+
+        Span<CieLchuv> inputSpan = new CieLchuv[5];
+        inputSpan.Fill(input);
+
+        Span<CieLch> actualSpan = new CieLch[5];
+
+        // Act
+        CieLch actual = converter.Convert<CieLchuv, CieLch>(input);
+        converter.Convert<CieLchuv, CieLch>(inputSpan, actualSpan);
+
+        // Assert
+        Assert.Equal(expected, actual, Comparer);
+
+        for (int i = 0; i < actualSpan.Length; i++)
+        {
+            Assert.Equal(expected, actualSpan[i], Comparer);
+        }
+    }
+}