<p>As the title mentions, I have a timeout callback handler on an ajax call, and I want to be able to test that condition but nothing is coming to mind immediately on ways I can force my application to hit that state, any suggestions?</p>

You could always run a server-side script that keeps running for a period of time. 
For example:
```
```
<?php
   sleep(10); //sleep for 10 seconds.
   print "This script has finished.";
>
```
```