From 42918ed6158305e75e8cf14646abefed844aa9f8 Mon Sep 17 00:00:00 2001
From: Brian Popow <popow@gmx.de>
Date: Mon, 27 Mar 2023 18:25:27 +0200
Subject: [PATCH] Add test for GetConverter with grayscale color space which
 uses FeatureTestRunner to disable specific hw features

---
 .../Formats/Jpg/JpegColorConverterTests.cs    | 29 +++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/tests/ImageSharp.Tests/Formats/Jpg/JpegColorConverterTests.cs b/tests/ImageSharp.Tests/Formats/Jpg/JpegColorConverterTests.cs
index 8ede71a5c7..2eb988e751 100644
--- a/tests/ImageSharp.Tests/Formats/Jpg/JpegColorConverterTests.cs
+++ b/tests/ImageSharp.Tests/Formats/Jpg/JpegColorConverterTests.cs
@@ -104,6 +104,35 @@ public class JpegColorConverterTests
         }
     }
 
+    [Fact]
+    public void GetConverterReturnsCorrectConverterWithGrayScaleColorSpace()
+    {
+        FeatureTestRunner.RunWithHwIntrinsicsFeature(
+            RunTest,
+            HwIntrinsics.AllowAll | HwIntrinsics.DisableAVX2 | HwIntrinsics.DisableSSE2 | HwIntrinsics.DisableHWIntrinsic);
+
+        static void RunTest(string arg)
+        {
+            // arrange
+            Type expectedType = typeof(JpegColorConverterBase.GrayscaleScalar);
+            if (Avx.IsSupported)
+            {
+                expectedType = typeof(JpegColorConverterBase.GrayscaleAvx);
+            }
+            else if (Sse2.IsSupported)
+            {
+                expectedType = typeof(JpegColorConverterBase.GrayScaleVector);
+            }
+
+            // act
+            JpegColorConverterBase converter = JpegColorConverterBase.GetConverter(JpegColorSpace.Grayscale, 8);
+            Type actualType = converter.GetType();
+
+            // assert
+            Assert.Equal(expectedType, actualType);
+        }
+    }
+
     [Fact]
     public void GetConverterReturnsCorrectConverterWithCmykColorSpace()
     {