Move your rspec directories to follow the "jfields" method:
Edit spec_helper.rb to be the following:
ENV["RAILS_ENV"] = "test"
require File.expand_path(File.dirname(__FILE__) + "/../config/environment")
Create a unit/unit_spec_helper.rb with the following:
require File.expand_path(File.dirname(__FILE__) + "/../spec_helper")
# Disconnect ActiveRecord from the database
And then change the model specs and controller specs to use
'unit_spec_helper.rb' instead of spec_helper.rb.
There is one outstanding bug that I haven't resolved: request,
response and controller have gone away, and you are now required to
declare @request, @response and @controller in the before(:each)
Other than that, it seems to work fine.