Coupling - mock,stub

gistfile1.rb

class RequestsSchedule

  def fetch_all_expired
    # fetch and return all expired definitions from MongoDB
    # e.g. use MongoClient somehow  
  end
  
end

class RequestToQueuePusher

  QUEUE_NAME = 'requests'

  def enqueue(requests)
    each.requests { |r| enqueue_single(r) }
  end

  private

  def enqueue_singe(request)
    #locate messages queue
    # push request to queue    
  end

end

class SchedulerJob

  def run
    expired_requests = RequestSchedule.new.fetch_all_expired
    RequestToQueuePusher.new.enqueue(expired_requests)
  end
  
end