Grasshopper and Unit tests with XUnit

Little update. After a time I came back to the testing problematics and solved most of the problems with the Rhino.Testing library.

mcneel/Rhino.Testing: NUnit dotnet unit testing for Rhino3D (github.com)

I had few problems with implemention but it was mostly my own mistakes.
Rhino.Testing - Rhino Developer - McNeel Forum

Thanks

Ondřej