/**
* Create the cache based session handler instance.
*
* @param string $driver
* @return \Illuminate\Session\CacheBasedSessionHandler
*/
protected function createCacheHandler($driver)
{
$handler = parent::createCacheHandler($driver);
if (!$this->validateCacheHandler($driver, $handler)) {
throw new \UnexpectedValueException('Wrong cache driver found');
}
return $handler;
}