protected function processTestCaseStartedEvent(TestCaseStartedEvent $event)
 {
     //init root step if needed
     $this->getStepStorage()->getLast();
     $testCase = $this->getTestCaseStorage()->get();
     $event->process($testCase);
     $this->getTestSuiteStorage()->get($event->getSuiteUuid())->addTestCase($testCase);
 }