function testShutdown()
{
$item1 = new CartItem(1);
$item2 = new CartItem(2);
$item1->setAmount(10);
$item2->setAmount(20);
$this->cart_handler->addItem($item1);
$this->cart_handler->addItem($item2);
$time = time();
$this->user->setReturnValue('getId', 1000);
$this->cart_handler->_dbCartHandler();
$this->db->sqlSelect('cart');
$arr = $this->db->getArray();
$this->assertEqual(sizeof($arr), 1);
$record = reset($arr);
$this->assertEqual($record['user_id'], 1000);
$this->assertEqual($record['cart_id'], 10);
//???
$this->assertTrue($record['last_activity_time'] >= $time);
$this->assertEqual($record['cart_items'], serialize($this->cart_handler->getItems()));
}
