title: Running a set of actions before every test-file in mocha
body: <p>I've started recently working with mocha to test my expressjs server.
  My tests are separated to multiple files and most of them contain some duplicated segments (Mostly before statements that load all the fixtures to the DB, etc) and that's really annoying.<p>
  I guess I could export them all to a single file and import them on each and every test, but I wonder if there are some more elegant solutions - such as running a certain file that has all the setup commands , and another file that contains all the tear-down commands.</p>
  
  <p>If anyone knows the answer that would be awesome :)</p>