A functional test for a shopping cart would ensure that you could add an item to a cart through a post to a Web page.
购物车的功能测试可以确保您能够通过登录某一web页面将商品添加到购物车中。
3
Due to the functional nature of the API, it is necessary to pass a function (method) to many of these operations so that it can be performed on each item in the ParallelArray.