How do I test this Sinatra Method?

Trivial Sinatra application:

require 'rubygems'
require 'sinatra/base'
require 'haml'

class InfoController < Sinatra::Base
  get "/" do
    haml :index
  end
end

And my test:

describe InfoController do
  include Rack::Test::Methods

  def app
    InfoController
  end

  it "should return the index page when visiting the root of the site" do    
   开发者_高级运维 get '/'
    last_response.should be_ok
  end
end

But I do not want to test whether or not the haml method worked, I just want to test that the index view was rendered.

How would you test that? Redefine the haml method? Mock the haml method somehow?

---

What about testing the actual markup that was rendered?

last_response.body.should match(/your text/)