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Action Mailer Previews (since Rails 4.1)
Since Rails 4.1 there is a preview-function to see what an e-mail will look like.
Integration to RSpec
All you need to do is implement a preview-class in spec/mailers/previews/notifier_preview.rb:
Copyclass NotifierPreview < ActionMailer::Preview def welcome Notifier.welcome(User.first) end end
And change adjust the preview load path in your application.rb:
Copyconfig.action_mailer.preview_path = "#{Rails.root}/spec/mailers/previews"
Then a preview will be available in the browser at http://localhost:3000/rails/mailers/notifier/welcome as well as a list of previews at http://localhost:3000/rails/mailers .
Rails <4.1
You could use Mailcatcher.
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