rspec-rails.rb

## Add in Gemfile
group :development, :test do
  # ...
  gem 'rspec-rails'
  gem 'factory_girl_rails'
end

group :test do
  gem 'shoulda-matchers', '~> 3.0'
end

=begin
## Run in terminal
rm -rf test/
bundle install
rails generate rspec:install
=end

## Add in rails_helper.rb
Shoulda::Matchers.configure do |config|
  config.integrate do |with|
    ## Choose a test framework:
    with.test_framework :rspec
    # with.test_framework :minitest
    # with.test_framework :minitest_4
    # with.test_framework :test_unit

    ## Choose one or more libraries:
    # with.library :active_record
    # with.library :active_model
    # with.library :action_controller
    ## Or, choose the following (which implies all of the above):
    with.library :rails
  end
end

## And add option in .rspec for beautiful output
--format doc