title: Android test: instrumentation and with maven build
body: <p>I cannot find a tutorial about how to setup Android instrumentation test with Maven build on internet. So, I tried myself with some explorations. I have several questions &amp; problems: </p>
  
  <p>I found pieces of information here and there, but get more confusions. For example, when to execute <code>mvn:instrument</code> and when to execute <code>mvn:deploy</code>? What is the project structure and how to define the POM for instrumentation, etc.</p>
  
  <p>Anyone can provide me a link about how to setup Android instrumentation test with Maven in steps? </p>