[12.x] QueueFake::listenersPushed()

[cosmastech]

It's a bit unwieldy to test queued listeners. I imagine most people went through the process I did today.

1. Try to write a test to check if a listener was queued by checking if the listener was pushed to the queue
2. Test fails... debug code to make sure it's being called
3. dd(Queue::pushedJobs())
4. ooooh, it's inside of a CallQueuedListener class.
5. Write another test that fails
6. Inspect the CallQueuedListener class and see that the event is under the data property, and that property is an array

The hope here is that this makes it a little bit easier for the next person.

Queue::fake();
event(new SomeEvent(value: 'look, a value!'));

$this->assertCount(
    1,
    Queue::listenersPushed(
        SomeEventListener::class,
        fn (SomeEvent $event) => $event->value === 'look, a value!'
    )
);

Note that this is slightly different than the *pushed methods in that the first parameter in the callback is the event. Those this is a deviation, I think this is probably what most people want to perform assertions against.

Other possibilities

Should this be queuedEvents() and have it return a Collection of arrays [$event, $handler]?