Only DebugSave testimages with bit depth >= 24

tests/ImageSharp.Tests/Formats/Tiff/TiffDecoderTests.cs

@@ -159,7 +159,12 @@ namespace SixLabors.ImageSharp.Tests.Formats.Tiff
         [WithFile(Flower24BitGray, PixelTypes.Rgba32)]
         [WithFile(Flower24BitGrayLittleEndian, PixelTypes.Rgba32)]
         public void TiffDecoder_CanDecode_24Bit_Gray<TPixel>(TestImageProvider<TPixel> provider)
-            where TPixel : unmanaged, IPixel<TPixel> => TestTiffDecoder(provider);
+            where TPixel : unmanaged, IPixel<TPixel>
+        {
+            // Note: because the MagickReferenceDecoder fails to load the image, we only debug save them.
+            using Image<TPixel> image = provider.GetImage();
+            image.DebugSave(provider);
+        }
 
         [Theory]
         [WithFile(FlowerRgb101010Contiguous, PixelTypes.Rgba32)]
@@ -171,7 +176,12 @@ namespace SixLabors.ImageSharp.Tests.Formats.Tiff
         [WithFile(Flower32BitGray, PixelTypes.Rgba32)]
         [WithFile(Flower32BitGrayLittleEndian, PixelTypes.Rgba32)]
         public void TiffDecoder_CanDecode_32Bit_Gray<TPixel>(TestImageProvider<TPixel> provider)
-            where TPixel : unmanaged, IPixel<TPixel> => TestTiffDecoder(provider);
+            where TPixel : unmanaged, IPixel<TPixel>
+        {
+            // Note: because the MagickReferenceDecoder fails to load the image, we only debug save them.
+            using Image<TPixel> image = provider.GetImage();
+            image.DebugSave(provider);
+        }
 
         [Theory]
         [WithFile(FlowerRgb121212Contiguous, PixelTypes.Rgba32)]
@@ -199,7 +209,12 @@ namespace SixLabors.ImageSharp.Tests.Formats.Tiff
         [WithFile(FlowerRgb242424Planar, PixelTypes.Rgba32)]
         [WithFile(FlowerRgb242424PlanarLittleEndian, PixelTypes.Rgba32)]
         public void TiffDecoder_CanDecode_72Bit<TPixel>(TestImageProvider<TPixel> provider)
-            where TPixel : unmanaged, IPixel<TPixel> => TestTiffDecoder(provider);
+            where TPixel : unmanaged, IPixel<TPixel>
+        {
+            // Note: because the MagickReferenceDecoder fails to load the image, we only debug save them.
+            using Image<TPixel> image = provider.GetImage();
+            image.DebugSave(provider);
+        }
 
         [Theory]
         [WithFile(FlowerRgb323232Contiguous, PixelTypes.Rgba32)]
@@ -207,7 +222,12 @@ namespace SixLabors.ImageSharp.Tests.Formats.Tiff
         [WithFile(FlowerRgb323232Planar, PixelTypes.Rgba32)]
         [WithFile(FlowerRgb323232PlanarLittleEndian, PixelTypes.Rgba32)]
         public void TiffDecoder_CanDecode_96Bit<TPixel>(TestImageProvider<TPixel> provider)
-            where TPixel : unmanaged, IPixel<TPixel> => TestTiffDecoder(provider);
+            where TPixel : unmanaged, IPixel<TPixel>
+        {
+            // Note: because the MagickReferenceDecoder fails to load the image, we only debug save them.
+            using Image<TPixel> image = provider.GetImage();
+            image.DebugSave(provider);
+        }
 
         [Theory]
         [WithFile(GrayscaleDeflateMultistrip, PixelTypes.Rgba32)]