Qunit using with Sinatra

app.rb

require "rubygems"
require "sinatra/base"
require "erb"

class MyApp < Sinatra::Base
  helpers do
    def qunit(test_js, fixtures = nil)
      result = '<link rel="stylesheet" href="/qunit/qunit.css" type="text/css" media="screen" /><script type="text/javascript" src="/qunit/qunit.js"></script>'
      case test_js.class.name
      when 'Array'
        test_js.each do |path|
          result += "<script type=\"text/javascript\" src=\"#{path}\"></script>"
        end
      when 'String'
        result += "<script type=\"text/javascript\" src=\"#{test_js}\"></script>"
      end
      result += '<h1 id="qunit-header">QUnit Test Suite</h1><h2 id="qunit-banner"></h2><div id="qunit-testrunner-toolbar"></div><h2 id="qunit-userAgent"></h2><ol id="qunit-tests"></ol><div id="qunit-fixture">' + fixtures + '</div>'
      result
    end
  end
  
  get '/' do
    erb :index
  end
end

MyApp.run! :port => 9000