Testing instance methods defined on a Sinatra application using the helpers module using RSpec

app.rb

require 'rubygems'
require 'sinatra'

Sinatra::Base.show_exceptions = false

class App < Sinatra::Base

  helpers do

    def my_helper_method
      "ZOMG HELLO!"
    end

  end

end

app_spec.rb

describe 'App' do

  before(:each) do 
    @app = App.new
  end

  def app
    @app ||= App.new
  end

  it "exposes its helper methods" do

    @app.should respond_to :my_helper_method
    @app.my_helper_method.should == "ZOMG HELLO!"

  end

end