I'm using tabnav plugin for Rails and I want to use rpsec to make sure it highlights properly.

describe 'account navigation links' do
  it 'should have account settings link' do
   get '/account/settings'
   response.should have_tag("li", :text => "Account Settings")
end

 it 'should be highlighted' do
   get '/account/settings'
   response.should have_tag("li", :color => "Account Settings")
 end
end

However the above code doesn't seem to work. I'm using webrat with rspec btw. Any help? Thanks.