How to test character sheet rolling

I am working on a character sheet for someone else's game. I would like to test the rolling capabilities. Is there any way for me to test this on my own, or do I need to create a character using that sheet and have the GM approve it?

Yeah, it needs to be an approved character first. The easiest way is to make a temporary character sheet and approve it in one of your own games, if you have any, or temporary put the code inside an existing and already approved character. A lot of players make their own testing games for these purposes. :D

(The game you're testing in should also have character sheet integration enabled.)
Edit: actually, I might be wrong about sheet integration. Well, the rest still stands!