How do you test an AJAX request with RSpec/RoR?

I'm fairly new to RoR and recently started learning BDD/Rspec for testing my application. I've been looking for a way to spec an AJAX request, but so far I haven't found much documentation on this at all. Anyone know how to do this? I'm using rails 2.3.8, rspec 1.3.0 and mocha 0.9.8 for my stubs (which I'm also in the process of learning...)

[kitokitoki]

xhr :get, :index

[Hash]

RSpecでajaxリクエストどうテストするのかなと思ったら, `xhr :get, :index` で出来るとか変態すぎる

[udzura]

xhr :get, :index やばそう