Agile Android

Good introduction to Agile methodologies in Android. Describes the basics to get started on several tools, including Jenkins for CI, Espresso, JUnit4, and Robolectric.It is a short read, only about 90 pages worth of content. This is good reference material.

This is a book I looked for. It clearly descibes how to do testing on Android in correct and simple way.

a good entry point to understand how test should work on andorid