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<?php |
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namespace EventSauce\EventSourcing; |
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use Exception; |
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use function func_get_args; |
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use function get_class; |
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use LogicException; |
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use function method_exists; |
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use PHPUnit\Framework\TestCase; |
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use EventSauce\EventSourcing\Time\Clock; |
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use EventSauce\EventSourcing\Time\TestClock; |
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use function sprintf; |
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abstract class AggregateRootTestCase extends TestCase |
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{ |
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/** |
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* @var InMemoryMessageRepository |
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*/ |
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private $messageRepository; |
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/** |
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* @var AggregateRootRepository |
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*/ |
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protected $repository; |
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/** |
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* @var Exception|null |
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*/ |
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private $caughtException; |
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/** |
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* @var Event[] |
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*/ |
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private $expectedEvents = []; |
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/** |
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* @var Exception|null |
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*/ |
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private $theExpectedException; |
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/** |
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* @var TestClock |
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*/ |
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private $clock; |
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/** |
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* @var bool |
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*/ |
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private $assertedScenario = false; |
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/** |
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* @var AggregateRootId |
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*/ |
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protected $aggregateRootId; |
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/** |
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* @before |
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*/ |
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protected function setUpEventStore() |
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{ |
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$className = $this->aggregateRootClassName(); |
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$this->clock = new TestClock(); |
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$this->aggregateRootId = $this->aggregateRootId(); |
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$this->messageRepository = new InMemoryMessageRepository(); |
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$dispatcher = $this->messageDispatcher(); |
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$decorator = $this->messageDecorator(); |
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$this->repository = new AggregateRootRepository($className, $this->messageRepository, $dispatcher, $decorator); |
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$this->expectedEvents = []; |
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$this->assertedScenario = false; |
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$this->theExpectedException = null; |
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$this->caughtException = null; |
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} |
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/** |
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* @after |
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*/ |
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protected function assertScenario() |
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{ |
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// @codeCoverageIgnoreStart |
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if ($this->assertedScenario) { |
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return; |
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} |
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// @codeCoverageIgnoreEnd |
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try { |
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$this->assertExpectedException($this->theExpectedException, $this->caughtException); |
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$this->assertLastCommitEqualsEvents(... $this->expectedEvents); |
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$this->messageRepository->purgeLastCommit(); |
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} finally { |
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$this->assertedScenario = true; |
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$this->theExpectedException = null; |
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$this->caughtException = null; |
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} |
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} |
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abstract protected function aggregateRootId(): AggregateRootId; |
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abstract protected function aggregateRootClassName(): string; |
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/** |
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* @return $this |
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*/ |
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protected function given(Event ... $events) |
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{ |
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$this->repository->persistEvents($this->aggregateRootId(), ... $events); |
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$this->messageRepository->purgeLastCommit(); |
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return $this; |
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} |
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public function on(AggregateRootId $id) |
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{ |
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return new EventStager($id, $this->messageRepository, $this->repository, $this); |
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} |
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/** |
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* @return $this |
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*/ |
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protected function when(... $arguments) |
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{ |
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try { |
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if ( ! method_exists($this, 'handle')) { |
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throw new LogicException(sprintf('Class %s is missing a ::handle method.', get_class($this))); |
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} |
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$this->handle(...$arguments); |
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} catch (Exception $exception) { |
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$this->caughtException = $exception; |
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} |
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return $this; |
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} |
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/** |
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* @return $this |
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*/ |
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protected function then(Event ... $events) |
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{ |
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$this->expectedEvents = $events; |
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return $this; |
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} |
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/** |
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* @return $this |
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*/ |
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public function thenWeAreSorry(Exception $expectedException) |
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{ |
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$this->theExpectedException = $expectedException; |
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return $this; |
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} |
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/** |
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* @return $this |
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*/ |
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1 |
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protected function thenNothingShouldHaveHappened() |
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{ |
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$this->expectedEvents = []; |
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return $this; |
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} |
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protected function assertLastCommitEqualsEvents(Event ... $events) |
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{ |
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self::assertEquals($events, $this->messageRepository->lastCommit(), "Events are not equal."); |
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} |
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private function assertExpectedException(Exception $expectedException = null, Exception $caughtException = null) |
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{ |
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if ($expectedException == $caughtException) { |
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return; |
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} |
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if ( ! $expectedException instanceof Exception || ($caughtException instanceof Exception && (get_class($expectedException) !== get_class($caughtException)))) { |
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throw $caughtException; |
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} |
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self::assertEquals([$expectedException], [$caughtException], ">> Exceptions are not equal."); |
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} |
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protected function pointInTime(): PointInTime |
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{ |
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return $this->clock->pointInTime(); |
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} |
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protected function clock(): Clock |
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{ |
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return $this->clock; |
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} |
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protected function messageDispatcher(): MessageDispatcher |
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{ |
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return new SynchronousMessageDispatcher(... $this->consumers()); |
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} |
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/** |
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* @return Consumer[] |
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*/ |
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protected function consumers(): array |
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{ |
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return []; |
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} |
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7 |
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private function messageDecorator(): MessageDecorator |
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{ |
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return new DelegatingMessageDecorator(); |
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} |
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} |
EventSaucePHP /
EventSauce
