public function testFetchExistingStreamEnvelopes()
{
$contract = Contract::fromClass(\stdClass::class);
$identifier = EventStreamIdentifier::fromString('Foo');
$event = $this->getMock(DomainEvent::class);
$this->persistence->commit($contract, $identifier, 0, new EventCollection([$event]));
$result = $this->persistence->fetch($contract, $identifier);
$this->assertEquals([$event], $result);
}
$dispatcher->addSubscriber($accountHistory);
$dispatcher->addSubscriber($accountBalance);
$dispatcher->addSubscriber($transferManager);
/*
* Normal event propagation
*
* When commands trigger actions on Account, domain events will be emitted
* As reaction to those events, projectors will create data for data models
*/
$bus->handle(new OpenAccountCommand('Foo', 'EUR'));
$bus->handle(new DepositCommand('Foo', 20));
$bus->handle(new OpenAccountCommand('Bar', 'EUR'));
$bus->handle(new TransferCommand('Foo', 'Bar', 10));
$bus->handle(new WithdrawCommand('Foo', 10));
$bus->handle(new WithdrawCommand('Bar', 10));
var_dump($accountBalance, $accountHistory, $transferManager, $persistence);
/*
* Introducing new projector
*
* New projector needs to catch up
* Separate emitter is created - just for new projector - it will emit all historical events
*/
$dispatcher = new EventDispatcher();
$eventEmitter = new DispatcherEmitter($dispatcher);
$export = new AccountExportProjector();
$dispatcher->addSubscriber($export);
$stream = $eventStore->openStream(Contract::fromClass(Account::class), EventStreamIdentifier::fromString('Foo'));
$eventEmitter->emit(new EventCollection($stream->all()));
$stream = $eventStore->openStream(Contract::fromClass(Account::class), EventStreamIdentifier::fromString('Bar'));
$eventEmitter->emit(new EventCollection($stream->all()));
var_dump($export);
public function testRootWillBeReconstitutedFromStream()
{
$contract = Contract::fromClass(AggregateRootDouble::class);
$eventStreamId = EventStreamIdentifier::fromString('test');
$event = $this->getMock(DomainEvent::class);
$this->persistence->expects($this->any())->method('fetch')->willReturn([$event]);
$aggregate = $this->uow->get($contract, $eventStreamId);
$this->assertEquals([$event], iterator_to_array($aggregate->events));
}
/**
* {@inheritdoc}
*/
public function getAccount(AccountNumber $accountNumber)
{
return $this->uow->get(Contract::fromClass(Account::class), EventStreamIdentifier::fromString($accountNumber));
}
public function testCommitStreamWithoutChanges()
{
$contract = Contract::fromClass(static::class);
$identifier = EventStreamIdentifier::fromString('foo');
$root = $this->getMock(AggregateRoot::class);
$root->expects($this->any())->method('getRecordedEvents')->willReturn([]);
$this->persistence->expects($this->any())->method('fetch')->willReturn([]);
$this->persistence->expects($this->never())->method('commit');
$this->eventEmitter->expects($this->never())->method('emit');
$this->uow->track($contract, $identifier, $root);
$this->uow->commit();
}
private function persistAggregate(Aggregate $aggregate)
{
if (empty($aggregate->getChanges())) {
return;
}
$events = new EventCollection($aggregate->getChanges());
$stream = $this->eventStore->openStream($aggregate->getContract(), EventStreamIdentifier::fromString($aggregate->getIdentifier()));
foreach ($events as $event) {
$stream->append($event);
}
$stream->commit();
$this->eventEmitter->emit($events);
$aggregate->clearChanges();
}
