Nice article! :)
Did you try the testing API?
I am having troubles with it... `FakeReviewManager` needs a context, meaning I cannot really write mocked tests for it.
When trying to run Android instrumented tests, I get
"java.lang.SecurityException: Permission Denial: getIntentSender() from pid=25025, uid=10126, (need uid=10127) is not allowed to send as package [my test package name]"