rails--rails/actionmailer/test/log_subscriber_test.rb

require "abstract_unit"
require "active_support/log_subscriber/test_helper"
require "action_mailer/log_subscriber"

class AMLogSubscriberTest < ActionMailer::TestCase
  include ActiveSupport::LogSubscriber::TestHelper

  def setup
    super
    ActionMailer::LogSubscriber.attach_to :action_mailer
  end

  class TestMailer < ActionMailer::Base
    def basic
      recipients "somewhere@example.com"
      subject    "basic"
      from       "basic@example.com"
      body       "Hello world"
    end

    def receive(mail)
      # Do nothing
    end
  end

  def set_logger(logger)
    ActionMailer::Base.logger = logger
  end

  def test_deliver_is_notified
    TestMailer.basic.deliver
    wait
    assert_equal(1, @logger.logged(:info).size)
    assert_match(/Sent mail to somewhere@example.com/, @logger.logged(:info).first)
    assert_equal(1, @logger.logged(:debug).size)
    assert_match(/Hello world/, @logger.logged(:debug).first)
  end

  def test_receive_is_notified
    fixture = File.read(File.dirname(__FILE__) + "/fixtures/raw_email")
    TestMailer.receive(fixture)
    wait
    assert_equal(1, @logger.logged(:info).size)
    assert_match(/Received mail/, @logger.logged(:info).first)
    assert_equal(1, @logger.logged(:debug).size)
    assert_match(/Jamis/, @logger.logged(:debug).first)
  end
end