It looks like there is an attempt to creating a kotlin mocking library for java and js: http://mockk.io/ It seems to me they won't be able to support Kotlin-native, or is there some creative way that I'm unaware of that mocking in Kotlin-native / the C world is possible?

This will be our only hope now. The previous big release from mockk is for android. So support for KN will be the next, and the KN team will provide any needed help according to their (@olonho and the author) discussion on Github. Don’t know when it will happen, but this author is pretty responsive and quick.

Oh wow. I didn't know this existed. Thanks! https://github.com/mockk/mockk/issues/58

This is a really lovely library. I love using it. I tried its

mockk-common

, and it totally works. After landing the support with KN. One test suite to rule them all! haha @oleksiyp is the author, and he is on slack I think 🙂 Maybe we can get some insights from him.