title: What does jenkins look into the project to start unit tests
body: <p>I have looked into jenkins tutorials and all most all of them mention that we should provide with the URL to the git repo.</p>
  
  <p>Fine.</p>
  
  <p>But once jenkins has an access to the git repo, what part of project does it look into to figure out which tests should be run or wether to run them at all etc ? Is it some configuration file in the repo ? </p>