[9.x] Allow BusFake to use custom BusRepository

[mihaliak]

As described in PR name, allow BusFake to use custom BusRepository. This is useful in tests where we use Bus::fake() and later in code we use resolve(BusRepository::class)->find(...).

Before this change that test would fail since Bus::fake() is creating always new BusRepository so using resolve(BusRepository::class)->find(...) will not use BatchRepositoryFake and throw error that it cant find batch in unit tests.

Usage:

$myBusRepository = new BatchRepositoryFake;

Bus::fake([JobsToFake::class], $myBusRepository);


// either bind $myBusRepository to \Illuminate\Bus\BatchRepository interface or send as constructor param to user defined class

app()->bind(\Illuminate\Bus\BatchRepository::class, $myBusRepository);


...
$myTestedService->method(); // this method calls  -> resolve(BatchRepository::class)->find(...)  -> correctly found fake batch