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<?php |
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namespace Yoanm\BehatUtilsExtension\Context\Initializer; |
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use Behat\Behat\Context\Context; |
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use Behat\Behat\Context\Initializer\ContextInitializer; |
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use Behat\Behat\EventDispatcher\Event\ExampleTested; |
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use Behat\Behat\EventDispatcher\Event\ScenarioTested; |
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use Symfony\Component\EventDispatcher\EventDispatcherInterface; |
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use Symfony\Component\EventDispatcher\EventSubscriberInterface; |
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use Yoanm\BehatUtilsExtension\Context\BehatContextSubscriberInterface; |
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/** |
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* Class BehatContextSubscriberInitializer |
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* /!\ /!\ Contexts will be aware of Behat events only from ScenarioTested::BEFORE to ScenarioTested::AFTER only /!\ /!\ |
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* |
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* This is due to the fact that context are (re)-created for each scenario or example |
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* So contexts will have access to the followings event workflow (depending of the type of the scenario) : |
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* |
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* - Basic scenario : |
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* - ScenarioTested |
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* - BEFORE |
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* - AFTER_SETUP |
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* - BackgroundTested |
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* - BEFORE |
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* - AFTER_SETUP |
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* - StepTested |
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* - BEFORE |
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* - AFTER_SETUP |
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* - BEFORE_TEARDOWN |
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* - AFTER |
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* - BackgroundTested |
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* - BEFORE_TEARDOWN |
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* - AFTER |
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* - ScenarioTested |
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* - BEFORE_TEARDOWN |
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* - AFTER |
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* |
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* - Scenario outline : |
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* - ExampleTested |
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* - BEFORE |
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* - AFTER_SETUP |
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* - BackgroundTested |
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* - BEFORE |
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* - AFTER_SETUP |
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* - StepTested |
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* - BEFORE |
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* - AFTER_SETUP |
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* - BEFORE_TEARDOWN |
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* - AFTER |
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* - BackgroundTested |
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* - BEFORE_TEARDOWN |
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* - AFTER |
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* - ExampleTested |
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* - BEFORE_TEARDOWN |
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* - AFTER |
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*/ |
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class BehatContextSubscriberInitializer implements ContextInitializer, EventSubscriberInterface |
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{ |
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/** @var EventDispatcherInterface */ |
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private $behatEventDispatcher; |
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/** @var BehatContextSubscriberInterface[] */ |
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private $registeredContextList = []; |
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/** |
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* @param EventDispatcherInterface $behatEventDispatcher |
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*/ |
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public function __construct(EventDispatcherInterface $behatEventDispatcher) |
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{ |
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$this->behatEventDispatcher = $behatEventDispatcher; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function initializeContext(Context $context) |
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{ |
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if (!$context instanceof BehatContextSubscriberInterface) { |
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return; |
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} |
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// This method is called before each scenario/example, so (an instance of) context |
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// is probably already registered |
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// To avoid any problem, keep a trace of registered contexts instance |
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// and remove it at scenario or example end |
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// (See clearBehatContextSubscriber method) |
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$this->behatEventDispatcher->addSubscriber($context); |
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$this->registeredContextList[] = $context; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public static function getSubscribedEvents() |
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{ |
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return [ |
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ScenarioTested::AFTER => 'clearBehatContextSubscriber', |
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ExampleTested::AFTER => 'clearBehatContextSubscriber', |
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]; |
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} |
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/** |
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* Clear contexts subscriber after each scenario/example |
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*/ |
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public function clearBehatContextSubscriber() |
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{ |
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foreach ($this->registeredContextList as $context) { |
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$this->behatEventDispatcher->removeSubscriber($context); |
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} |
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$this->registeredContextList = []; |
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} |
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} |
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yoanm /
BehatUtilsExtension
