测试Eloquent Observer的方法是否触发事件

Question

The app I am working on fires an event, when one of the Eloquent model attributes is updated.

The Eloquent model is called Job and it is supposed to fire JobCustomerTotalAmountDueChanged when the duration attribute is updated. I have the following code in the JobObserver:

public function saved(Job $job)
{
    if ($job->isDirty('duration')) {
        event(new JobCustomerTotalAmountDueChanged($job));
    }
}

When I try to test it using Event::fake, Eloquent events are not being fired, which means that the code in saved method is never execured. From what I see the assertDispatched and assertNotDispatched methods are only available for faked events. Is there a way to assert that a particular event is/is not fired without Event::fake?

Answer 1

The solution turned out to be very easy after all:

Laravel lets you specify which events should be faked, as an argument to fake method. In my example:

Event::fake([JobCustomerTotalAmountDueChanged::class])

All of the other events are being triggered and handled. Also, you can make assertions only with reference to events passed as argument to fake method. If you don't pass any argument, Laravel will try to 'fake' every event in the app.