actionmailer/test/i18n_with_controller_test.rb


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require 'abstract_unit'
require 'action_view'
require 'action_controller'

class I18nTestMailer < ActionMailer::Base
  configure do |c|
    c.assets_dir = ''
  end

  def mail_with_i18n_subject(recipient)
    @recipient  = recipient
    I18n.locale = :de
    mail(to: recipient, subject: I18n.t(:email_subject),
      from: "system@loudthinking.com", date: Time.local(2004, 12, 12))
  end
end

class TestController < ActionController::Base
  def send_mail
    email = I18nTestMailer.mail_with_i18n_subject("test@localhost").deliver
    render text: "Mail sent - Subject: #{email.subject}"
  end
end

class ActionMailerI18nWithControllerTest < ActionDispatch::IntegrationTest
  Routes = ActionDispatch::Routing::RouteSet.new
  Routes.draw do
    get ':controller(/:action(/:id))'
  end

  def app
    Routes
  end

  def test_send_mail
    with_translation 'de', email_subject: '[Anmeldung] Willkommen' do
      get '/test/send_mail'
      assert_equal "Mail sent - Subject: [Anmeldung] Willkommen", @response.body
    end
  end

  protected

  def with_translation(locale, data)
    I18n.backend.store_translations(locale, data)
    yield
  ensure
    I18n.backend.reload!
  end
end