How to do TDD using FDT with AS3 in MAC?

I'd like to setup my environment to program doing Test Driven Development in ActionScript3. I tried using AsUnit but I don't know how to install it properly in MacOS.

Thank you!

Solution

If you create a new project in FDT4 you are offered to create the new project with or without unit testing. If you choose 'with unit tesing' everything is setup for you automatically.