As Sarah said, "basic testing requirements" vary from organization to organization, dojo to dojo, teacher to teacher, and even test to test. It's kind of like asking what the basic requirements for spelling exams are for elementary school students...
In any case, if you're interested in what Aikikai Hombu Dojo uses as their testing requirements, I posted them here on these Forums a while back:
http://www.aikiweb.com/forums/showth...&threadid=1625
I believe, though, that the IAA is not affiliated with Aikikai Hombu Dojo.
-- Jun