An assertion interface for Queue::assertPushed() similar to Bus::assertChained()

[ChrGriffin]

Bus::assertChained() utilizes some black magic to compare properties passed into the chained jobs, even if those properties are private.

Bus::assertChained([
    new ShipOrder('some-property'), // <-- even if this constructor property is private, assertChained can still compare it to what was actually passed
]);

However, Queue::assertPushed() takes a callback that should return true or false. And within that callback, if a property is private, obviously one cannot compare it.

Queue::assertPushed(ShipOrder::class, function (ShipOrder $job) {
    return $job->someProperty === 'some-property'; // <-- if someProperty is private, there's no way to make this comparison
});

It always feels icky to me to make properties public or add getters just to be able to compare them in tests. I will admit I haven't dug into the source code behind either of these assertions, but if there were a way to apply whatever principle allows assertChained to inspect those properties to assertPushed, that would be be great! But of course, I must concede that this is mostly to satisfy a personal "ick" factor and wouldn't have a lot of benefit beyond that, so I can't imagine it's worth a lot of work.