@Override
public String toString() {
return "Cart{" +
"totalCount=" + getTotalCount() +
", totalPrice=" + getTotalPrice() +
", items=" + items +
'}';
}
}
1.2.2、购物车的测试：
public class CartTest {
@Test
public void addItem() {
Cart cart = new Cart();
cart.addItem(new CartItem(1, "java 从入门到精通", 1, new BigDecimal(1000),new BigDecimal(1000)));
cart.addItem(new CartItem(1, "java 从入门到精通", 1, new BigDecimal(1000),new BigDecimal(1000)));
cart.addItem(new CartItem(2, "数据结构与算法", 1, new BigDecimal(100),new BigDecimal(100)));
System.out.println(cart);
}
@Test
public void deleteItem() {
Cart cart = new Cart();
cart.addItem(new CartItem(1, "java 从入门到精通", 1, new BigDecimal(1000),new BigDecimal(1000)));
cart.addItem(new CartItem(1, "java 从入门到精通", 1, new BigDecimal(1000),new BigDecimal(1000)));
cart.addItem(new CartItem(2, "数据结构与算法", 1, new BigDecimal(100),new BigDecimal(100)));
cart.deleteItem(1);
System.out.println(cart);
}
@Test
public void clear() {
Cart cart = new Cart();
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