function &get_cart_item()
{
$cart_item = new cart_item($this->get_node_id());
$cart_item->set_description($this->get_title());
$cart_item->set_attribute('image_id', $this->get_attribute('image_id'));
return $cart_item;
}
function test_shutdown()
{
$item1 = new cart_item(1);
$item2 = new cart_item(2);
$item1->set_amount(10);
$item2->set_amount(20);
$this->cart_handler->add_item($item1);
$this->cart_handler->add_item($item2);
$time = time();
$this->user->setReturnValue('get_id', 1000);
$this->cart_handler->_db_cart_handler();
$this->db->sql_select('cart');
$arr = $this->db->get_array();
$this->assertEqual(sizeof($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->get_items()));
}