毎回忘れるので自分用にメモ

Gem

group :development, :test do
  gem 'rspec-rails'
end

$ bundle install

インストール

$ bundle exec rails g rspec:install
Running via Spring preloader in process 25125
      create  .rspec
      create  spec
      create  spec/spec_helper.rb
      create  spec/rails_helper.rb