title: How can I get XCTest to run tests in a particular order?
body: <p>I'm just starting to use Apple's new Xcode 5 unit testing framework.  I have low-level classes that I would like to test before testing higher level classes that utilize these low-level classes.  For instance I have to database control classes that use a special UUID class. It makes no sense to test the DB classes if I have a regression in the UUID system.  I would like to run the suite of UUID tests first.</p>
  
  <p>Has anyone found a technique or practice with the XCTest framework to allow this?  </p>