gem 'sprockets' # 提供一个静态文件处理的pipeline编译环境.同时它也是一个基于rack的rack app.
gem 'shoulda-matchers'
gem 'factory_girl_rails' # 提供假数据
gem 'cucumber-rails', :require => false
gem 'database_cleaner'
gem 'capybara'
gem 'selenium-webdriver'
gem 'uglifier' # Use Uglifier as compressor for JavaScript assets
gem 'turbolinks', github: 'rails/turbolinks' #加速页面渲染
gem 'exception_notification'
gem 'dropzonejs-rails'
，
