mailer_worker_spec.rb

require "action_mailer"
require "qe"

class Mailer < ActionMailer::Base
  def welcome(options)
    @options = options
    mail :to => options[:email]
  end
end

class MailerWorker
  include Qe::Worker

  def mail
    Mailer.welcome(options)
  end

  def perform
    mail.deliver
  end
end

describe MailerWorker do
  subject(:worker) {
    MailerWorker.new(:name => "NAME", :email => "EMAIL")
  }

  describe "#mail" do
    it "initializes mail" do
      Mailer
        .should_receive(:welcome)
        .with(worker.options)

      worker.mail
    end
  end

  describe "#perform" do
    let(:mail) { mock }
    before { worker.stub :mail => mail }

    it "delivers email" do
      mail.should_receive(:deliver)
      worker.perform
    end
  end
end