I'm assuming you are talking about your download manager? Usually unit testing is done with object oriented code, because then you re-use much more code than you would be otherwise making it easy to test. Test small chunks independently, and then it will all click together if it is planned out properly.
Fire up simpletest or your favorite testing application and begin writing unit tests for your classes and functions. If your code is broken into logical chunks as it should be, then testing will be easy to do. Most vB mods aren't written in OOP or if they are they are just large library files and not really utilising it as much as they could.
If you cannot test the code, then rewrite the code so it is testable.
If you want more help with this I'd probably send you to the PHP application design forum at sitepoint as there are a few helpful people there who are very active. The fact that it is a vBulletin modification should have little bearing on the ability to test it.
10-20-2008, 03:40 PM
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