module Devise::TestHelpers

def _process_unauthenticated(env, options = {})
  options[:action] ||= :unauthenticated
  proxy = env['warden']
  result = options[:result] || proxy.result
  ret = case result
  when :redirect
    body = proxy.message || "You are being redirected to #{proxy.headers['Location']}"
    [proxy.status, proxy.headers, [body]]
  when :custom
    proxy.custom_response
  else
    env["PATH_INFO"] = "/#{options[:action]}"
    env["warden.options"] = options
    Warden::Manager._run_callbacks(:before_failure, env, options)
    status, headers, response = Devise.warden_config[:failure_app].call(env).to_a
    @controller.send :render, :status => status, :text => response.body,
      :content_type => headers["Content-Type"], :location => headers["Location"]
    nil # causes process return @response
  end
  # ensure that the controller response is set up. In production, this is
  # not necessary since warden returns the results to rack. However, at
  # testing time, we want the response to be available to the testing
  # framework to verify what would be returned to rack.
  if ret.is_a?(Array)
    # ensure the controller response is set to our response.
    @controller.response ||= @response
    @response.status = ret.first
    @response.headers = ret.second
    @response.body = ret.third
  end
  ret
end