Create CieLchuvAndCmykConversionTests.cs

tests/ImageSharp.Tests/ColorProfiles/CieLchuvAndCmykConversionTests.cs

@@ -0,0 +1,72 @@
+// Copyright (c) Six Labors.
+// Licensed under the Six Labors Split License.
+
+using SixLabors.ImageSharp.ColorProfiles;
+
+namespace SixLabors.ImageSharp.Tests.ColorProfiles;
+
+/// <summary>
+/// Tests <see cref="CieLchuv"/>-<see cref="Cmyk"/> conversions.
+/// </summary>
+public class CieLchuvAndCmykConversionTests
+{
+    private static readonly ApproximateColorProfileComparer Comparer = new(.0001F);
+
+    [Theory]
+    [InlineData(0, 0, 0, 1, 0, 0, 0)]
+    [InlineData(0, 0.8576171, 0.7693201, 0.3440427, 36.0555, 103.6901, 10.01514)]
+    public void Convert_Cmyk_to_CieLchuv(float c2, float m, float y, float k, float l, float c, float h)
+    {
+        // Arrange
+        Cmyk input = new(c2, m, y, k);
+        CieLchuv expected = new(l, c, h);
+        ColorConversionOptions options = new() { WhitePoint = Illuminants.D65, TargetWhitePoint = Illuminants.D65 };
+        ColorProfileConverter converter = new(options);
+
+        Span<Cmyk> inputSpan = new Cmyk[5];
+        inputSpan.Fill(input);
+
+        Span<CieLchuv> actualSpan = new CieLchuv[5];
+
+        // Act
+        CieLchuv actual = converter.Convert<Cmyk, CieLchuv>(input);
+        converter.Convert<Cmyk, 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(0, 0, 0, 0, 0, 0, 1)]
+    [InlineData(36.0555, 103.6901, 10.01514, 0, 0.8576171, 0.7693201, 0.3440427)]
+    public void Convert_CieLchuv_to_Cmyk(float l, float c, float h, float c2, float m, float y, float k)
+    {
+        // Arrange
+        CieLchuv input = new(l, c, h);
+        Cmyk expected = new(c2, m, y, k);
+        ColorConversionOptions options = new() { WhitePoint = Illuminants.D65, TargetWhitePoint = Illuminants.D65 };
+        ColorProfileConverter converter = new(options);
+
+        Span<CieLchuv> inputSpan = new CieLchuv[5];
+        inputSpan.Fill(input);
+
+        Span<Cmyk> actualSpan = new Cmyk[5];
+
+        // Act
+        Cmyk actual = converter.Convert<CieLchuv, Cmyk>(input);
+        converter.Convert<CieLchuv, Cmyk>(inputSpan, actualSpan);
+
+        // Assert
+        Assert.Equal(expected, actual, Comparer);
+
+        for (int i = 0; i < actualSpan.Length; i++)
+        {
+            Assert.Equal(expected, actualSpan[i], Comparer);
+        }
+    }
+}