Could someone help me using kotlin with androidInstrumentationTests? I'm getting a "cannot mock final class" exception. I got it working with unit tests with the MockMaker solution, but I'm having trouble with the android tests.

It some mock frameworks, you can't mock final classes, in Kotlin they're all final unless you 'open' them, or I think there's a gradle option for opening all classes for tests....

Check this article: https://medium.com/@moyinoluwa/mockito-2-and-kotlin-bff-9a9a76e1436d

@tinashe I read the article, and I have it working with this solution for junit tests, but it won't work with androdInstrumentalTests, is that somehow different? Do you have any experience wiht that?

No unfortunately, I thought that solution would work as well

@dave08 yes I know, I was looking for a better solution. I read about dexopener which I haven't tried yet. I tried mockk and also tried mockito-kotlin but still couldn't get it working with the instrumentation tests