Fix namespace add first LCH test

Author: JimBobSquarePants

tests/ImageSharp.Tests/ColorProfiles/CieLabAndCieLchuvConversionTests.cs

@@ -3,7 +3,7 @@
 
 using SixLabors.ImageSharp.ColorProfiles;
 
-namespace SixLabors.ImageSharp.Tests.ColorProfiles.Conversion;
+namespace SixLabors.ImageSharp.Tests.ColorProfiles;
 
 /// <summary>
 /// Tests <see cref="CieLab"/>-<see cref="CieLchuv"/> conversions.

tests/ImageSharp.Tests/ColorProfiles/CieLabAndCieLuvConversionTests.cs

@@ -3,7 +3,7 @@
 
 using SixLabors.ImageSharp.ColorProfiles;
 
-namespace SixLabors.ImageSharp.Tests.ColorProfiles.Conversion;
+namespace SixLabors.ImageSharp.Tests.ColorProfiles;
 
 /// <summary>
 /// Tests <see cref="CieLab"/>-<see cref="CieLuv"/> conversions.

tests/ImageSharp.Tests/ColorProfiles/CieLabAndCieXyyConversionTests.cs

@@ -3,7 +3,7 @@
 
 using SixLabors.ImageSharp.ColorProfiles;
 
-namespace SixLabors.ImageSharp.Tests.ColorProfiles.Conversion;
+namespace SixLabors.ImageSharp.Tests.ColorProfiles;
 
 /// <summary>
 /// Tests <see cref="CieLab"/>-<see cref="CieXyy"/> conversions.

tests/ImageSharp.Tests/ColorProfiles/CieLabAndCmykConversionTests.cs

@@ -3,7 +3,7 @@
 
 using SixLabors.ImageSharp.ColorProfiles;
 
-namespace SixLabors.ImageSharp.Tests.ColorProfiles.Conversion;
+namespace SixLabors.ImageSharp.Tests.ColorProfiles;
 
 /// <summary>
 /// Tests <see cref="CieLab"/>-<see cref="Cmyk"/> conversions.

tests/ImageSharp.Tests/ColorProfiles/CieLabAndRgbConversionTests.cs

@@ -3,7 +3,7 @@
 
 using SixLabors.ImageSharp.ColorProfiles;
 
-namespace SixLabors.ImageSharp.Tests.ColorProfiles.Conversion;
+namespace SixLabors.ImageSharp.Tests.ColorProfiles;
 
 /// <summary>
 /// Tests <see cref="CieLab"/>-<see cref="Rgb"/> conversions.

tests/ImageSharp.Tests/ColorProfiles/CieLabAndYCbCrConversionTests.cs

@@ -3,7 +3,7 @@
 
 using SixLabors.ImageSharp.ColorProfiles;
 
-namespace SixLabors.ImageSharp.Tests.ColorProfiles.Conversion;
+namespace SixLabors.ImageSharp.Tests.ColorProfiles;
 
 /// <summary>
 /// Tests <see cref="CieLab"/>-<see cref="YCbCr"/> conversions.

tests/ImageSharp.Tests/ColorProfiles/CieLchuvAndCieLchConversionTests.cs

@@ -3,7 +3,7 @@
 
 using SixLabors.ImageSharp.ColorProfiles;
 
-namespace SixLabors.ImageSharp.Tests.ColorProfiles.Conversion;
+namespace SixLabors.ImageSharp.Tests.ColorProfiles;
 
 /// <summary>
 /// Tests <see cref="CieLchuv"/>-<see cref="CieLch"/> conversions.

tests/ImageSharp.Tests/ColorProfiles/CieLchuvAndCieLuvConversionTests.cs

@@ -3,7 +3,7 @@
 
 using SixLabors.ImageSharp.ColorProfiles;
 
-namespace SixLabors.ImageSharp.Tests.ColorProfiles.Conversion;
+namespace SixLabors.ImageSharp.Tests.ColorProfiles;
 
 /// <summary>
 /// Tests <see cref="CieLuv"/>-<see cref="CieLchuv"/> conversions.

tests/ImageSharp.Tests/ColorProfiles/CieXyyAndLmsConversionTests.cs

@@ -3,7 +3,7 @@
 
 using SixLabors.ImageSharp.ColorProfiles;
 
-namespace SixLabors.ImageSharp.Tests.ColorProfiles.Conversion;
+namespace SixLabors.ImageSharp.Tests.ColorProfiles;
 
 /// <summary>
 /// Tests <see cref="CieXyy"/>-<see cref="Lms"/> conversions.

tests/ImageSharp.Tests/ColorProfiles/CieXyzAndCieLchConversionTests.cs

@@ -0,0 +1,70 @@
+// Copyright (c) Six Labors.
+// Licensed under the Six Labors Split License.
+
+using SixLabors.ImageSharp.ColorProfiles;
+
+namespace SixLabors.ImageSharp.Tests.ColorProfiles;
+
+/// <summary>
+/// Tests <see cref="CieXyz"/>-<see cref="CieLch"/> conversions.
+/// </summary>
+public class CieXyzAndCieLchConversionTests
+{
+    private static readonly ApproximateColorProfileComparer Comparer = new(.0002f);
+
+    [Theory]
+    [InlineData(0, 0, 0, 0, 0, 0)]
+    [InlineData(0.360555, 0.936901, 0.1001514, 97.50697, 161.235321, 143.157)]
+    public void Convert_CieXyz_to_CieLch(float x, float y, float yl, float l, float c, float h)
+    {
+        // Arrange
+        CieXyz input = new(x, y, yl);
+        CieLch expected = new(l, c, h);
+        ColorProfileConverter converter = new();
+
+        Span<CieXyz> inputSpan = new CieXyz[5];
+        inputSpan.Fill(input);
+
+        Span<CieLch> actualSpan = new CieLch[5];
+
+        // Act
+        CieLch actual = converter.Convert<CieXyz, CieLch>(input);
+        converter.Convert<CieXyz, CieLch>(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(97.50697, 161.235321, 143.157, 0.3605551, 0.936901, 0.1001514)]
+    public void Convert_CieLch_to_CieXyz(float l, float c, float h, float x, float y, float yl)
+    {
+        // Arrange
+        CieLch input = new(l, c, h);
+        CieXyz expected = new(x, y, yl);
+        ColorProfileConverter converter = new();
+
+        Span<CieLch> inputSpan = new CieLch[5];
+        inputSpan.Fill(input);
+
+        Span<CieXyz> actualSpan = new CieXyz[5];
+
+        // Act
+        CieXyz actual = converter.Convert<CieLch, CieXyz>(input);
+        converter.Convert<CieLch, CieXyz>(inputSpan, actualSpan);
+
+        // Assert
+        Assert.Equal(expected, actual, Comparer);
+
+        for (int i = 0; i < actualSpan.Length; i++)
+        {
+            Assert.Equal(expected, actualSpan[i], Comparer);
+        }
+    }
+}