一Gemfile添加 

group :development, :test do

gem 'rspec-rails', '~> 3.0.0'

gem 'factory_girl_rails'

gem 'guard-rspec', require: false

end

then bundle

二初始化Rspec 

rails generate rspec:install

三利用factory_girl添加测试数据

新建目录factories，spec/factories, 所有的测试数据文件放在该目录下

FactoryGirl.define do

  测试数据

end

四rspec guard added to Guardfile

guard init rspec

跑rspec注意：

1去掉一大推warning -> 在.rspec文件中去掉--warning

2如果不用ActiveRecord, you can remove this line.

#ActiveRecord::Migration.maintain_test_schema!