What's purpose of SAFEARRAYTests

[kant2002]

Maybe I miss something obvious, but SafeArrayTests are not testing anything.
I get that maybe SafeArray handling should be in VARIANTTests but they not there too. Do I miss something?

https://github.com/dotnet/winforms/blob/main/src/System.Windows.Forms.Primitives/tests/UnitTests/Interop/Oleaut32/SAFEARRAYTests.cs