title: How do I run only certain tests in karma?
body: <p>I have karma config set up correctly, config file, running in the background, just great. As soon as I change and save a file, it reruns the tests.... all 750 of the unit tests. I want to be able to run just a few. Short of manually hacking the config file or commenting out hundreds of tests across many files, is there any easy way to do it?</p>
  
  <p>E.g. when running command line server tests using say mocha, I just use regexp: <code>mocha -g 'only tests that I want'</code>. Makes it much easier to debug and quickly check.</p>