如何使用rspec测试ActionMailerliver_later [英] How to test ActionMailer deliver_later with rspec

问题描述

尝试使用delay_job_active_record升级到Rails 4.2.我没有为测试环境设置delay_job后端，以为作业将立即执行.

trying to upgrade to Rails 4.2, using delayed_job_active_record. I've not set the delayed_job backend for test environment as thought that way jobs would execute straight away.

我正在尝试使用Rspec测试新的'deliver_later'方法，但不确定如何.

I'm trying to test the new 'deliver_later' method with Rspec, but I'm not sure how.

旧控制器代码:

ServiceMailer.delay.new_user(@user)

新控制器代码:

ServiceMailer.new_user(@user).deliver_later

我曾经这样测试过它:

expect(ServiceMailer).to receive(:new_user).with(@user).and_return(double("mailer", :deliver => true))

现在我在使用它时出错.(双邮件程序"收到意外消息:带有(无参数)的deliver_later)

Now I get errors using that. (Double "mailer" received unexpected message :deliver_later with (no args))

只是

expect(ServiceMailer).to receive(:new_user)

对于nil:NilClass，也使用未定义的方法'deliver_later'"失败了

fails too with 'undefined method `deliver_later' for nil:NilClass'

我尝试了一些示例，这些示例可让您查看是否使用ActiveJob中的test_helper将作业排入了队列，但我没有设法测试排队的正确作业.

I've tried some examples that allow you to see if jobs are enqueued using test_helper in ActiveJob but I haven't managed to test that the correct job is queued.

expect(enqueued_jobs.size).to eq(1)

如果包括test_helper，则通过，但是不允许我检查它是否发送了正确的电子邮件.

This passes if the test_helper is included, but it doesn't allow me to check it is the correct email that is being sent.

我想做的是:

• 测试正确的电子邮件已排队(或在测试环境中立即执行)
• 具有正确的参数(@user)

有什么想法吗?谢谢

推荐答案

如果我对您的理解正确，则可以执行以下操作:

If I understand you correctly, you could do:

message_delivery = instance_double(ActionMailer::MessageDelivery)
expect(ServiceMailer).to receive(:new_user).with(@user).and_return(message_delivery)
allow(message_delivery).to receive(:deliver_later)

关键是您需要以某种方式为 deliver_later 提供一个双重标记.

The key thing is that you need to somehow provide a double for deliver_later.

这篇关于如何使用rspec测试ActionMailerliver_later的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！