Unit Tests and Mocks for TinyCLR?

This is a question for the Community- what are you using for TinyCLR unit tests and mocks? I see some examples from NetMF and an old TinyCLR version that only runs on VS2017 and 0.2.0 TinyCLR. There are lots of .NET options and I can, of course, test C# code with Visual Studio if I stick to Desktop unit tests. But what about writing tests that run on TinyCLR on the target? Writing tests against a Desktop-based TinyCLR/Sitcore emulator for the target?