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<?php |
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/* |
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* Copyright (c) 2012-2014 Janos Szurovecz |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a copy of |
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* this software and associated documentation files (the "Software"), to deal in |
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* the Software without restriction, including without limitation the rights to |
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies |
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* of the Software, and to permit persons to whom the Software is furnished to do |
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* so, subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included in all |
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* copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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* SOFTWARE. |
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*/ |
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namespace predaddy\util\test; |
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use BadMethodCallException; |
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use Closure; |
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use Exception; |
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use PHPUnit_Framework_TestCase; |
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use precore\lang\ObjectClass; |
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use predaddy\commandhandling\AbstractCommand; |
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use predaddy\commandhandling\Command; |
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use predaddy\commandhandling\CommandBus; |
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use predaddy\commandhandling\DirectCommandBus; |
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use predaddy\domain\AbstractDomainEvent; |
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use predaddy\domain\AggregateId; |
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use predaddy\domain\GenericAggregateId; |
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use predaddy\domain\DomainEvent; |
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use predaddy\domain\EventPublisher; |
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use predaddy\domain\Repository; |
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use predaddy\eventhandling\EventBus; |
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use predaddy\messagehandling\annotation\Subscribe; |
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use predaddy\messagehandling\MessageCallback; |
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/** |
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* Class Fixture |
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* |
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* @package predaddy\util\test |
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* @author Janos Szurovecz <[email protected]> |
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*/ |
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abstract class Fixture implements MessageCallback |
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{ |
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const EVENT_NUMBER_MISMATCH = 'Raised and expected number of events mismatches'; |
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/** |
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* @var DomainEvent[] |
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*/ |
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private $then = []; |
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/** |
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* @var DomainEvent[] |
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*/ |
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private $raisedEvents = []; |
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/** |
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* @var Command |
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*/ |
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private $command; |
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/** |
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* @var CommandBus |
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*/ |
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private $commandBus; |
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/** |
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* @var EventBus |
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*/ |
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private $eventBus; |
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/** |
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* @var string |
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*/ |
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private $aggregateClass; |
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/** |
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* @var mixed |
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*/ |
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private $expectedReturnValue; |
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/** |
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* @var mixed |
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*/ |
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private $commandResult; |
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/** |
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* @var bool |
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*/ |
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private $checkReturnValue = false; |
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/** |
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* @var null|string |
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*/ |
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private $expectedExceptionClass = null; |
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/** |
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* @var null|string |
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*/ |
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private $expectedExceptionMessage = null; |
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/** |
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* @var null|Exception |
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*/ |
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private $raisedException; |
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/** |
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* @var null|Repository |
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*/ |
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private $repository; |
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/** |
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* @var GenericAggregateId|null |
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*/ |
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private $aggregateId; |
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public function __construct($aggregateClass, Repository $repository = null) |
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{ |
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$this->aggregateClass = $aggregateClass; |
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$this->commandBus = $repository === null |
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? new CommandBus() |
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: DirectCommandBus::builder($repository)->build(); |
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$this->eventBus = new EventBus(); |
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EventPublisher::instance()->setEventBus($this->eventBus); |
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$this->repository = $repository; |
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//$this->aggregateId = new GenericAggregateId(UUID::randomUUID()->toString(), $this->getAggregateClass()); |
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} |
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/** |
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* These commands will be initialize the AR. The raised domain events will be ignored. |
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* It works only with non-ES aggregates. |
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* |
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* @param Command $commands one ore more commands |
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* @throws BadMethodCallException |
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* @return CommandSourcedFixture |
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*/ |
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public function givenCommands(Command $commands) |
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{ |
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throw new BadMethodCallException("This method is not supported"); |
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} |
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/** |
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* These events will be initialize the AR. It works only with ES aggregates. |
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* |
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* @param DomainEvent $events |
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* @throws BadMethodCallException |
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* @return EventSourcedFixture |
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*/ |
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public function givenEvents(DomainEvent $events) |
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{ |
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throw new BadMethodCallException("This method is not supported"); |
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} |
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/** |
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* Returns the registered or dynamically generated repository. |
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* |
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* @return null|Repository |
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*/ |
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public function getRepository() |
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{ |
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return $this->repository; |
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} |
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/** |
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* These events are expected to be raised. Starts the evaluation. |
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* |
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* @param DomainEvent $events one or more events |
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*/ |
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public function expectEvents(DomainEvent $events) |
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{ |
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$this->then = func_get_args(); |
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$this->evaluate(); |
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} |
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/** |
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* No expected events. Starts the evaluation. |
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*/ |
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public function expectNoEvents() |
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{ |
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$this->evaluate(); |
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} |
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/** |
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* The AR's behavior will be tested when this command is applied. |
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* |
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* @param Command $command |
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* @return $this |
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*/ |
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public function when(Command $command) |
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{ |
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if ($this->aggregateId !== null && $command instanceof AbstractCommand) { |
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CommandPopulator::populate($this->getAggregateId()->value(), $command); |
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} |
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$this->command = $command; |
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return $this; |
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} |
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/** |
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* The given value must be returned by the command handler. |
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* |
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* @param mixed $value |
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* @return $this |
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*/ |
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public function expectReturnValue($value) |
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{ |
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$this->checkReturnValue = true; |
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$this->expectedReturnValue = $value; |
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return $this; |
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} |
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/** |
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* The given type of exception must be be thrown when the command is applied. Starts the evaluation. |
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* |
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* @param string $class the type of the exception |
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* @param null|string $message the exception message |
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*/ |
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public function expectException($class, $message = null) |
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{ |
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$this->expectedExceptionClass = $class; |
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$this->expectedExceptionMessage = $message; |
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$this->evaluate(); |
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} |
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/** |
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* The command handler which can handle the tested command. |
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* If the command implements {@link DirectCommand} and is processed directly |
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* by the AR, does not need to be used. |
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* |
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* @param $handler |
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* @return $this |
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*/ |
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public function registerAnnotatedCommandHandler($handler) |
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{ |
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$this->commandBus->register($handler); |
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return $this; |
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} |
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/** |
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* The same as {@link registerAnnotatedCommandHandler()} but with closure. |
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* |
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* @param Closure $closure |
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* @return $this |
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*/ |
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public function registerCommandClosure(Closure $closure) |
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{ |
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$this->commandBus->registerClosure($closure); |
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return $this; |
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} |
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/** |
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* The aggregate ID generated by the AR, or defined somehow else. |
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* Can be obtained in order to do further tests if required. |
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* |
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* @return AggregateId |
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*/ |
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public function getAggregateId() |
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{ |
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return $this->aggregateId; |
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} |
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/** |
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* @param mixed $result |
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* @return void |
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*/ |
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public function onSuccess($result) |
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{ |
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$this->commandResult = $result; |
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} |
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/** |
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* @param Exception $exception |
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* @return void |
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*/ |
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public function onFailure(Exception $exception) |
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{ |
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$this->raisedException = $exception; |
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} |
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/** |
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* @Subscribe |
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* @param DomainEvent $event |
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*/ |
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public function catchEvent(DomainEvent $event) |
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{ |
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$this->raisedEvents[] = $event; |
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$this->setAggregateId($event->aggregateId()); |
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} |
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/** |
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* @param AggregateId $aggregateId |
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*/ |
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protected function setAggregateId(AggregateId $aggregateId) |
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{ |
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$this->aggregateId = $aggregateId; |
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} |
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/** |
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* @return CommandBus |
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*/ |
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protected function getCommandBus() |
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{ |
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return $this->commandBus; |
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} |
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/** |
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* @return EventBus |
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*/ |
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protected function getEventBus() |
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{ |
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return $this->eventBus; |
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} |
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/** |
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* @return ObjectClass |
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*/ |
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protected function getAggregateClass() |
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{ |
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return $this->aggregateClass; |
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} |
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private function evaluate() |
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{ |
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$this->eventBus->register($this); |
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$this->commandBus->post($this->command, $this); |
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$this->checkReturnValue(); |
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$this->checkThrownException(); |
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$this->checkRaisedEvents(); |
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} |
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private function checkReturnValue() |
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{ |
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if ($this->checkReturnValue) { |
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PHPUnit_Framework_TestCase::assertEquals($this->expectedReturnValue, $this->commandResult); |
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} |
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} |
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private function checkThrownException() |
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{ |
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if ($this->raisedException !== null) { |
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if ($this->expectedExceptionClass === null) { |
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throw $this->raisedException; |
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} |
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PHPUnit_Framework_TestCase::assertInstanceOf($this->expectedExceptionClass, $this->raisedException); |
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PHPUnit_Framework_TestCase::assertEquals( |
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$this->expectedExceptionMessage, |
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$this->raisedException->getMessage() |
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); |
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} |
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} |
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private function checkRaisedEvents() |
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{ |
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$thenCount = count($this->then); |
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$raisedCount = count($this->raisedEvents); |
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PHPUnit_Framework_TestCase::assertEquals($thenCount, $raisedCount, self::EVENT_NUMBER_MISMATCH); |
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for ($i = 0; $i < $thenCount; $i++) { |
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$expectedEvent = $this->then[$i]; |
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$raisedEvent = $this->raisedEvents[$i]; |
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if ($raisedEvent instanceof AbstractDomainEvent) { |
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$raisedEvent = DomainEventMetaReset::reset($raisedEvent); |
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} |
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if ($expectedEvent instanceof AbstractDomainEvent) { |
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$expectedEvent = DomainEventMetaReset::reset($expectedEvent); |
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} |
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PHPUnit_Framework_TestCase::assertEquals($expectedEvent, $raisedEvent); |
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} |
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} |
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} |
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class DomainEventMetaReset extends AbstractDomainEvent |
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{ |
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public static function reset(AbstractDomainEvent $event) |
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{ |
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$event->id = ''; |
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$event->aggregateClass = ''; |
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$event->aggregateValue = ''; |
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$event->stateHash = null; |
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$event->created = null; |
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return $event; |
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} |
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} |
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class CommandPopulator extends AbstractCommand |
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|
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{ |
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public static function populate($aggregateId, AbstractCommand $command) |
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{ |
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$command->aggregateId = $aggregateId; |
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} |
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} |
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