Minor refacor.

dlemstra · Jan 25, 2025 · fd8331d · fd8331d
1 parent bdc5795
commit fd8331d
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/tests/Magick.NET.Tests/Statistics/PerceptualHashTests/TheSumSquaredDistanceMethod.cs b/tests/Magick.NET.Tests/Statistics/PerceptualHashTests/TheSumSquaredDistanceMethod.cs
@@ -20,7 +20,7 @@ public void ShouldThrowExceptionWhenCustomImplementationDoesNotHaveExpectedChann
             Assert.NotNull(phash);
 
             var perceptualHash = Substitute.For<IPerceptualHash>();
-            perceptualHash.GetChannel(PixelChannel.Blue).Returns((IChannelPerceptualHash)null!);
+            perceptualHash.GetChannel(PixelChannel.Blue).Returns((IChannelPerceptualHash?)null);
 
             var exception = Assert.Throws<NotSupportedException>(() => phash.SumSquaredDistance(perceptualHash));
             Assert.Equal("The other perceptual hash should contain a red, green and blue channel.", exception.Message);