Rails3 で コントローラからメールが送信されたか Rspec で確認のメモ

(Rails3.2.11)

• http://railscasts.com/episodes/275-how-i-test?language=ja&view=asciicast

動作確認用プロジェクト作成

$ rails new test_email_in_rspec -T --skip-bundle
$ cd test_email_in_rspec

Gemfile

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

rspec:install

$ rails g rspec:install

動作確認用スキャフォールド・メーラー作成

$ rails g scaffold User name email
$ rails g mailer user_mailer notice

config/environments/development.rb

いちおう設定

  config.action_mailer.default_url_options = { :host => 'localhost:3000' }
  config.action_mailer.delivery_method = :test

spec/support/mailer_macros.rb

module MailerMacros
  def last_email
    ActionMailer::Base.deliveries.last
  end
  
  def reset_email
    ActionMailer::Base.deliveries = []
  end
end

/spec/spec_helper.rb

RSpec.configure do |config|
#...
  config.include(MailerMacros)
  config.before(:each) { reset_email }
end

spec/controllers/users_controller_spec.rb

  describe "GET index" do
    it "assigns all users as @users" do
      user = User.create! valid_attributes
      get :index, {}, valid_session
      assigns(:users).should eq([user])
      # add
      last_email.to.should == ["to@example.org"]
    end
  end

実行してみる

$ rake spec SPEC=spec/controllers/users_controller_spec.rb
…
Finished in 0.24565 seconds
16 examples, 0 failures