RSpec features helper for AJAX

ajax_helpers.rb

# Credits:
#
#   * http://robots.thoughtbot.com/automatically-wait-for-ajax-with-capybara
#   * https://coderwall.com/p/aklybw
require 'timeout'

module RSpec::Features
  module AjaxHelpers
    def wait_for_ajax
      Timeout.timeout(Capybara.default_wait_time) do
        loop until finished_all_ajax_requests?
      end
    end

    private
    def finished_all_ajax_requests?
      page.evaluate_script('jQuery.active').zero?
    end
  end
end

__END__

Usage:

feature 'Visit home page' do
  include RSpec::Features::AjaxHelpers

  # ...
end