✏️ 변수명 수정

✏️ 변수명 가독성을 위한 수정
- getMaxApplicableDiscount => calculateItemMax
- 그에 맞게 basic.test 도 수정

src/basic/__tests__/basic.test.tsx

@@ -6,6 +6,7 @@ import { AdminPage } from '../../refactoring/pages/AdminPage';
 import { CartItem, Coupon, Product } from '../../types';
 import { useCart, useCoupons, useProducts } from '../../refactoring/hooks';
 import * as cartUtils from '../../refactoring/models/cart';
+import * as discountUtils from '../../refactoring/models/discount';
 
 const mockProducts: Product[] = [
   {
@@ -335,24 +336,24 @@ describe('basic > ', () => {
     describe('calculateItemTotal', () => {
       test('할인 없이 총액을 계산해야 합니다.', () => {
         const item: CartItem = { product: testProduct, quantity: 1 };
-        expect(cartUtils.calculateItemTotal(item)).toBe(100);
+        expect(discountUtils.calculateItemTotal(item)).toBe(100);
       });
 
       test('수량에 따라 올바른 할인을 적용해야 합니다.', () => {
         const item: CartItem = { product: testProduct, quantity: 5 };
-        expect(cartUtils.calculateItemTotal(item)).toBe(400); // 500 * 0.8
+        expect(discountUtils.calculateItemTotal(item)).toBe(400); // 500 * 0.8
       });
     });
 
     describe('getMaxApplicableDiscount', () => {
       test('할인이 적용되지 않으면 0을 반환해야 합니다.', () => {
         const item: CartItem = { product: testProduct, quantity: 1 };
-        expect(cartUtils.getMaxApplicableDiscount(item)).toBe(0);
+        expect(discountUtils.calculateItemMaxDiscount(item)).toBe(0);
       });
 
       test('적용 가능한 가장 높은 할인율을 반환해야 합니다.', () => {
         const item: CartItem = { product: testProduct, quantity: 5 };
-        expect(cartUtils.getMaxApplicableDiscount(item)).toBe(0.2);
+        expect(discountUtils.calculateItemMaxDiscount(item)).toBe(0.2);
       });
     });
 

src/refactoring/models/discount.ts

@@ -1,7 +1,7 @@
 import { CartItem } from 'src/types';
 
 // 개별 항목에서 적용 가능한 최대 할인율 계산
-export const getMaxApplicableDiscount = (item: CartItem) => {
+export const calculateItemMaxDiscount = (item: CartItem) => {
   const discount = item.product.discounts.reduce((maxDiscount, d) => {
     return item.quantity >= d.quantity && d.rate > maxDiscount ? d.rate : maxDiscount;
   }, 0);
@@ -11,7 +11,7 @@ export const getMaxApplicableDiscount = (item: CartItem) => {
 // 개별 항목의 할인율 적용한 총 금액 계산
 export const calculateItemTotal = (item: CartItem) => {
   const { product, quantity } = item;
-  const discount = getMaxApplicableDiscount(item);
+  const discount = calculateItemMaxDiscount(item);
   return product.price * quantity * (1 - discount);
 };