Vim: Using rails.vim, how do I make rails.vm use rspec instead of testunit?

I'm using rails.vim and when I use :A on a model file, it opens the corresponding testunit file. How do I make it open开发者_开发知识库 the corresponding rspec file?

Rails.vim will load test/unit first (if it exists), then rspec.

So, fix the framework you use most often and keep your stuff in either the test or spec folders.