Create CieLuvAndCieXyyConversionTests.cs

Author: JimBobSquarePants

tests/ImageSharp.Tests/ColorProfiles/CieLuvAndCieXyyConversionTests.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;
+
+/// <summary>
+/// Tests <see cref="CieLuv"/>-<see cref="CieXyy"/> conversions.
+/// </summary>
+public class CieLuvAndCieXyyConversionTests
+{
+    private static readonly ApproximateColorProfileComparer Comparer = new(.0002F);
+
+    [Theory]
+    [InlineData(0, 0, 0, 0, 0, 0)]
+    [InlineData(36.0555, 103.6901, 10.01514, 0.5646762, 0.2932749, 0.09037033)]
+    public void Convert_CieLuv_to_CieXyy(float l, float u, float v, float x, float y, float yl)
+    {
+        // Arrange
+        CieLuv input = new(l, u, v);
+        CieXyy expected = new(x, y, yl);
+        ColorConversionOptions options = new() { WhitePoint = Illuminants.D65, TargetWhitePoint = Illuminants.D65 };
+        ColorProfileConverter converter = new(options);
+
+        Span<CieLuv> inputSpan = new CieLuv[5];
+        inputSpan.Fill(input);
+
+        Span<CieXyy> actualSpan = new CieXyy[5];
+
+        // Act
+        CieXyy actual = converter.Convert<CieLuv, CieXyy>(input);
+        converter.Convert<CieLuv, CieXyy>(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(0.5646762, 0.2932749, 0.09037033, 36.0555, 103.6901, 10.01514)]
+    public void Convert_CieXyy_to_CieLuv(float x, float y, float yl, float l, float u, float v)
+    {
+        // Arrange
+        CieXyy input = new(x, y, yl);
+        CieLuv expected = new(l, u, v);
+        ColorConversionOptions options = new() { WhitePoint = Illuminants.D65, TargetWhitePoint = Illuminants.D65 };
+        ColorProfileConverter converter = new(options);
+
+        Span<CieXyy> inputSpan = new CieXyy[5];
+        inputSpan.Fill(input);
+
+        Span<CieLuv> actualSpan = new CieLuv[5];
+
+        // Act
+        CieLuv actual = converter.Convert<CieXyy, CieLuv>(input);
+        converter.Convert<CieXyy, CieLuv>(inputSpan, actualSpan);
+
+        // Assert
+        Assert.Equal(expected, actual, Comparer);
+
+        for (int i = 0; i < actualSpan.Length; i++)
+        {
+            Assert.Equal(expected, actualSpan[i], Comparer);
+        }
+    }
+}