Can't test if method was called when using delayed_job 'delay' method

Question

I use Mocha, Test::Unit and delayed_job and wanted to test whether mailer method has been executed, like this: ``` test "should send info about paid payment" do payment = Payment.new :contractor_name => "notempty", :address => "notempty" UserMailer.expects(:send_payment_info) payment.set_paid! end # model method def set_paid! self.status = 'paid' self.paid_at = Date.today self.save! UserMailer.delay.send_payment_info self end ``` Without using delay method test works as expected, but with it (and I have Delayed::Worker.delay_jobs = !Rails.env.test? in initializer config) I get: NoMethodError: undefined method `deliver' for nil:NilClass app/models/payment.rb:33:in`set_paid!' test/unit/payment_test.rb:50:in `test_should_send_info_about_paid_payment' And I have no clue how to fix this? Maybe I should moch UserMailer differently?

Accepted Answer

Such workaround helped:

```
UserMailer.stubs(:delay).returns UserMailer
UserMailer.expects(:send_payment_info)
```

Don't know if it's the legit way to go, but it works

Can't test if method was called when using delayed_job 'delay' method

Solution

Problem