주문 도메인 개발
구현
public interface DiscountPolicy {
/**
*
* @return 할인 대상 금액
*/
int discount(Member member, int itemPrice);
}
테스트
public class OrderApp {
public static void main(String[] args) {
MemberService memberService = new MemberServiceImpl();
OrderService orderService = new OrderServiceImpl();
Long memberId = 1L;
Member member = new Member(memberId, "memberA", Grade.VIP);
memberService.join(member);
Order order = orderService.createOrder(memberId, "itemA", 10000);
System.out.println("order = " + order);
System.out.println("order.calculatePrice() = " + order.calculatePrice());
}
}
order = Order{memberId=1, itemName='itemA', itemPrice=10000, discountPrice=1000}
order.calculatePrice() = 9000
public class OrderServiceTest {
MemberService memberService = new MemberServiceImpl();
OrderService orderService = new OrderServiceImpl();
@Test
void createOrder() {
// 원시 타입으로 하면 null을 넣을 수 없어서 래퍼 타입으로 넣는다.
Long memberId = 1L;
Member member = new Member(memberId, "memberA", Grade.VIP);
memberService.join(member);
Order order = orderService.createOrder(memberId, "itemA", 10000);
Assertions.assertThat(order.getDiscountPrice()).isEqualTo(1000);
}
}
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