Liberate yourself from the Android framework and start developing your business value on your laptop. This presentation covers the requirements, tips to fulfil them, and an overview of testing reactive state.
Demo:
https://gist.github.com/pakoito/1c87fcdff328d78918113ac2fcd5e3a9
Test examples:
https://github.com/pakoito/FunctionalAndroidReference/tree/master/liblogic/src/test/kotlin/com/pacoworks/dereference/features/rotation