Cake\Network\Session::clear PHP Метод

    public function clear($renew = false)
    {
        $_SESSION = [];
        if ($renew) {
            $this->renew();
        }
    }

 /**
  * testClear method
  *
  * @return void
  */
 public function testClear()
 {
     $session = new Session();
     $session->write('Delete.me', 'Clearing out');
     $session->clear();
     $this->assertFalse($session->check('Delete.me'));
     $this->assertFalse($session->check('Delete'));
 }