测试Devise正在后台工作人员中重新发送确认指示电子邮件

如果他们在注册后的两天内没有确认，我想第二次向用户发送Devise确认说明，但是我似乎无法通过我的成功案例测试。

背景工作者（每天运行一次）：

class ResendConfirmationWorker include Sidekiq::Worker sidekiq_options queue: :resend_confirmation, retry: false def perform d = Time.zone.now - 2.days users = User.where.not(confirmation_sent_at: nil) .where(confirmed_at: nil) .where(created_at: d.beginning_of_day..d.end_of_day) users.find_each do |user| user.send_confirmation_instructions end end end 

RSpec测试：

 require 'rails_helper' describe ResendConfirmationWorker, type: :job do before do time = Time.zone.now - 2.days @user = create :unconfirmed_user, created_at: time, confirmation_sent_at: time end def run_job subject.perform end it 'resends a confirmation email to people who haven't accepted it within two days' do run_job expect(Devise::Mailer.deliveries.count).to eq 1 end end 

我总是得到0而不是1.我也试过看Sidekiq::Extensions::DelayedMailer.jobs.size和Devise.mailer.deliveries.count但它们也返回0。

最后，我在worker中放置了一个绑定并手动运行user.send_confirmation_instructions ：

 [1] pry(#)> user.send_confirmation_instructions => #<ActionMailer::DeliveryJob:0x007fc53f05c420 @arguments= ["Devise::Mailer", "confirmation_instructions", "deliver_now", #, "token1", {}], @job_id="9b5f6231-3194-4c57-9a6b-a38368cec603", @priority=nil, @queue_name="mailers"> 

看起来它正确地将新的确认说明电子邮件添加到邮件程序队列中，为什么我不能从我的测试中看到它？