I’m using reflection to get a custom attribute, and then I want to validate the type passed into the constructor, so I tried this:

var autoMapAttribute = dtoType.GetCustomAttribute<AutoMapAttribute>();

autoMapAttribute?.SourceType.Should()
    BeOfType<IbiSiliconProductStepping>();

It fails saying the type is System.RuntimeType. If I instead change the check to:

Be(typeof(IbiSiliconProductStepping));

then it succeeds. I’m confused why the first one doesn’t work.