title: How to test Server-Client (Java/Maven)
body: <p>I have a simple game which consists of two projects: Client and server. Now I want to test if they interact correctly.<br>
  Setup is: One Maven-parent project, and server/client as child-modules.</p>
  
  <p>I don't now how to test the interaction: am I able to start both project somehow (how exactly?) in junit tests, or integration tests? So that I can listen for one projects output verify it and send it to the other? Or should I go another way?</p>