public function testCanSortCollectionByCallable()
{
$collection = new EventEnvelopeCollection();
$first_event = $this->getTestEvent('Unit-Test-1');
$second_event = $this->getTestEvent('Unit-Test-2');
$first_envelope = new EventEnvelope($first_event, []);
$second_envelope = new EventEnvelope($second_event, []);
$collection[] = $first_envelope;
$collection[] = $second_envelope;
/**
* Sort in reverse order
*/
/** @var EventEnvelopeCollection $collection */
$collection->sort(function (ServesEventStreamData $a, ServesEventStreamData $b) {
if ($a->getOccurredOnMicrotime() < $b->getOccurredOnMicrotime()) {
return 1;
} elseif ($a->getOccurredOnMicrotime() > $b->getOccurredOnMicrotime()) {
return -1;
} else {
return 0;
}
});
$this->assertSame($second_envelope, $collection[0]);
$this->assertSame($first_envelope, $collection[1]);
}
/**
* @return CollectsEventEnvelopes
*/
public function getChanges()
{
$changes = new EventEnvelopeCollection();
foreach ($this->aggregateRoots as $aggregateRoot) {
if ($aggregateRoot->hasChanges()) {
$changes->append($aggregateRoot->getChanges());
}
}
$changes->sort($this->getChangesSortFunction());
return $changes;
}