Unit tests with Android Studio and Gradle?

Question

How can I add unit tests to my Android projects in Android Studio (IntelliJ) easily?

To be more exact: I want to add a folder with test code (JUnit 4) and execute th

Answer 1

I think the answer should be now already in Android Studio 1.1 (and current gradle plugin). They introduced unit test support. It's still experimental, but less so than our previous efforts here :) See here.