title: Testing spring-cloud-dataflow stream
body: <p>I'm looking for a way to easily test any flow. And I thing that spring-cloud-dataflow-acceptance-tests could help me to do that but I can'f find any documentation about that.</p>
  
  <p>How does it work? I launched the application but I don't know how can write and run test.</p>
  
  <p>Does anyone has any suggestion about that?</p>
  
  <p>Thanks</p>