title: Results of a test in an if/else statement in CasperJS
body: <p>I have a test <code>this.test.assertExists("blablabla");</code>.</p>
  
  <p>How do I use the results of this test in an if/else statement?  In other words, I want the program to do one thing if the test passes, and a different thing if it fails.  </p>