Bolt\Controller\ExceptionControllerInterface::systemCheck PHP Method

    public function systemCheck($type, $messages = [], $context = []);

 /**
  * {@inheritdoc}
  */
 public function check(ExceptionControllerInterface $exceptionController)
 {
     $path = $this->resourceManager->getPath('cache');
     if (!is_dir($path)) {
         return $exceptionController->systemCheck(Validator::CHECK_CACHE, [], ['path' => $path]);
     }
     if (!is_writable($path)) {
         return $exceptionController->systemCheck(Validator::CHECK_CACHE, [], ['path' => $path]);
     }
     return null;
 }