Rack-Test MockSession that enables to call remote/external URL using HTTParty

remote_session.rb

# Usage 
#   @browser ||= Rack::Test::Session.new(Rack::RemoteSession.new(Sinatra::Application, "twitter.com"))

require 'httparty'

module Rack
  class RemoteSession < MockSession # :nodoc:

    def request(uri, env)
      env["HTTP_COOKIE"] ||= cookie_jar.for(uri)
      @last_request = Rack::Request.new(env)
      
      response = HTTParty.get("http:#{uri.to_s}")
      status, headers, body = response.code, response.headers, response.body

      @last_response = MockResponse.new(status, headers, body, env["rack.errors"].flush)
      body.close if body.respond_to?(:close)

      # bug: cookie_jar.merge(last_response.headers["Set-Cookie"], uri)
      @after_request.each { |hook| hook.call }

      if @last_response.respond_to?(:finish)
        @last_response.finish
      else
        @last_response
      end
    end

  end
end