mall + trade：增肌爱 TradeCouponPriceCalculator 的单元测试

yudao-module-mall/yudao-module-product-api/src/main/java/cn/iocoder/yudao/module/product/api/sku/dto/ProductSkuRespDTO.java

@@ -51,10 +51,6 @@ public class ProductSkuRespDTO {
      * 库存
      */
     private Integer stock;
-    /**
-     * 预警预存
-     */
-    private Integer warnStock;
     /**
      * 商品重量，单位：kg 千克
      */

yudao-module-mall/yudao-module-promotion-api/src/main/java/cn/iocoder/yudao/module/promotion/api/price/dto/PriceCalculateReqDTO.java

@@ -12,6 +12,7 @@ import java.util.List;
  * @author 芋道源码
  */
 @Data
+@Deprecated
 public class PriceCalculateReqDTO {
 
     /**

yudao-module-mall/yudao-module-promotion-biz/src/test/java/cn/iocoder/yudao/module/promotion/service/price/PriceServiceTest.java

@@ -56,54 +56,6 @@ public class PriceServiceTest extends BaseMockitoUnitTest {
     @Mock
     private ProductSkuApi productSkuApi;
 
-    @Test
-    public void testCalculatePrice_memberDiscount() {
-        // 准备参数
-        // TODO 芋艿：userId = 1，实现 9 折；后续改成 mock
-        PriceCalculateReqDTO calculateReqDTO = new PriceCalculateReqDTO().setUserId(1L)
-                .setItems(singletonList(new PriceCalculateReqDTO.Item().setSkuId(10L).setCount(2)));
-        // mock 方法(商品 SKU 信息)
-        ProductSkuRespDTO productSku = randomPojo(ProductSkuRespDTO.class, o -> o.setId(10L).setPrice(100));
-        when(productSkuApi.getSkuList(eq(asSet(10L)))).thenReturn(singletonList(productSku));
-
-        // 调用
-        PriceCalculateRespDTO priceCalculate = priceService.calculatePrice(calculateReqDTO);
-        // 断言 Order 部分
-        PriceCalculateRespDTO.Order order = priceCalculate.getOrder();
-        assertEquals(order.getTotalPrice(), 200);
-        assertEquals(order.getDiscountPrice(), 0);
-        assertEquals(order.getPointPrice(), 0);
-        assertEquals(order.getDeliveryPrice(), 0);
-        assertEquals(order.getPayPrice(), 180);
-        assertNull(order.getCouponId());
-        // 断言 OrderItem 部分
-        assertEquals(order.getItems().size(), 1);
-        PriceCalculateRespDTO.OrderItem orderItem = order.getItems().get(0);
-        assertEquals(orderItem.getSkuId(), 10L);
-        assertEquals(orderItem.getCount(), 2);
-        assertEquals(orderItem.getOriginalPrice(), 200);
-        assertEquals(orderItem.getOriginalUnitPrice(), 100);
-        assertEquals(orderItem.getDiscountPrice(), 20);
-        assertEquals(orderItem.getPayPrice(), 180);
-        assertEquals(orderItem.getOrderPartPrice(), 0);
-        assertEquals(orderItem.getOrderDividePrice(), 180);
-        // 断言 Promotion 部分
-        assertEquals(priceCalculate.getPromotions().size(), 1);
-        PriceCalculateRespDTO.Promotion promotion = priceCalculate.getPromotions().get(0);
-        assertNull(promotion.getId());
-        assertEquals(promotion.getName(), "会员折扣");
-        assertEquals(promotion.getType(), PromotionTypeEnum.MEMBER.getType());
-        assertEquals(promotion.getTotalPrice(), 200);
-        assertEquals(promotion.getDiscountPrice(), 20);
-        assertTrue(promotion.getMatch());
-        assertEquals(promotion.getDescription(), "会员折扣：省 0.20 元");
-        PriceCalculateRespDTO.PromotionItem promotionItem = promotion.getItems().get(0);
-        assertEquals(promotion.getItems().size(), 1);
-        assertEquals(promotionItem.getSkuId(), 10L);
-        assertEquals(promotionItem.getOriginalPrice(), 200);
-        assertEquals(promotionItem.getDiscountPrice(), 20);
-    }
-
     @Test
     public void testCalculatePrice_discountActivity() {
         // 准备参数
@@ -364,87 +316,6 @@ public class PriceServiceTest extends BaseMockitoUnitTest {
         assertEquals(promotionItem012.getDiscountPrice(), 0);
     }
 
-    @Test
-    public void testCalculatePrice_coupon() {
-        // 准备参数
-        PriceCalculateReqDTO calculateReqDTO = new PriceCalculateReqDTO().setUserId(randomLongId())
-                .setItems(asList(new PriceCalculateReqDTO.Item().setSkuId(10L).setCount(2),
-                        new PriceCalculateReqDTO.Item().setSkuId(20L).setCount(3),
-                        new PriceCalculateReqDTO.Item().setSkuId(30L).setCount(4)))
-                .setCouponId(1024L);
-        // mock 方法(商品 SKU 信息)
-        ProductSkuRespDTO productSku01 = randomPojo(ProductSkuRespDTO.class, o -> o.setId(10L).setPrice(100).setSpuId(1L));
-        ProductSkuRespDTO productSku02 = randomPojo(ProductSkuRespDTO.class, o -> o.setId(20L).setPrice(50).setSpuId(2L));
-        ProductSkuRespDTO productSku03 = randomPojo(ProductSkuRespDTO.class, o -> o.setId(30L).setPrice(30).setSpuId(3L));
-        when(productSkuApi.getSkuList(eq(asSet(10L, 20L, 30L)))).thenReturn(asList(productSku01, productSku02, productSku03));
-        // mock 方法（优惠劵 Coupon 信息）
-        CouponDO coupon = randomPojo(CouponDO.class, o -> o.setId(1024L).setName("程序员节")
-                .setProductScope(PromotionProductScopeEnum.SPU.getScope()).setProductSpuIds(asList(1L, 2L))
-                .setUsePrice(350).setDiscountType(PromotionDiscountTypeEnum.PERCENT.getType())
-                .setDiscountPercent(50).setDiscountLimitPrice(70));
-        when(couponService.validCoupon(eq(1024L), eq(calculateReqDTO.getUserId()))).thenReturn(coupon);
-
-        // 调用
-        PriceCalculateRespDTO priceCalculate = priceService.calculatePrice(calculateReqDTO);
-        // 断言 Order 部分
-        PriceCalculateRespDTO.Order order = priceCalculate.getOrder();
-        assertEquals(order.getTotalPrice(), 470);
-        assertEquals(order.getDiscountPrice(), 0);
-        assertEquals(order.getPointPrice(), 0);
-        assertEquals(order.getDeliveryPrice(), 0);
-        assertEquals(order.getPayPrice(), 400);
-        assertEquals(order.getCouponId(), 1024L);
-        assertEquals(order.getCouponPrice(), 70);
-        // 断言 OrderItem 部分
-        assertEquals(order.getItems().size(), 3);
-        PriceCalculateRespDTO.OrderItem orderItem01 = order.getItems().get(0);
-        assertEquals(orderItem01.getSkuId(), 10L);
-        assertEquals(orderItem01.getCount(), 2);
-        assertEquals(orderItem01.getOriginalPrice(), 200);
-        assertEquals(orderItem01.getOriginalUnitPrice(), 100);
-        assertEquals(orderItem01.getDiscountPrice(), 0);
-        assertEquals(orderItem01.getPayPrice(), 200);
-        assertEquals(orderItem01.getOrderPartPrice(), 40);
-        assertEquals(orderItem01.getOrderDividePrice(), 160);
-        PriceCalculateRespDTO.OrderItem orderItem02 = order.getItems().get(1);
-        assertEquals(orderItem02.getSkuId(), 20L);
-        assertEquals(orderItem02.getCount(), 3);
-        assertEquals(orderItem02.getOriginalPrice(), 150);
-        assertEquals(orderItem02.getOriginalUnitPrice(), 50);
-        assertEquals(orderItem02.getDiscountPrice(), 0);
-        assertEquals(orderItem02.getPayPrice(), 150);
-        assertEquals(orderItem02.getOrderPartPrice(), 30);
-        assertEquals(orderItem02.getOrderDividePrice(), 120);
-        PriceCalculateRespDTO.OrderItem orderItem03 = order.getItems().get(2);
-        assertEquals(orderItem03.getSkuId(), 30L);
-        assertEquals(orderItem03.getCount(), 4);
-        assertEquals(orderItem03.getOriginalPrice(), 120);
-        assertEquals(orderItem03.getOriginalUnitPrice(), 30);
-        assertEquals(orderItem03.getDiscountPrice(), 0);
-        assertEquals(orderItem03.getPayPrice(), 120);
-        assertEquals(orderItem03.getOrderPartPrice(), 0);
-        assertEquals(orderItem03.getOrderDividePrice(), 120);
-        // 断言 Promotion 部分
-        assertEquals(priceCalculate.getPromotions().size(), 1);
-        PriceCalculateRespDTO.Promotion promotion01 = priceCalculate.getPromotions().get(0);
-        assertEquals(promotion01.getId(), 1024L);
-        assertEquals(promotion01.getName(), "程序员节");
-        assertEquals(promotion01.getType(), PromotionTypeEnum.COUPON.getType());
-        assertEquals(promotion01.getTotalPrice(), 350);
-        assertEquals(promotion01.getDiscountPrice(), 70);
-        assertTrue(promotion01.getMatch());
-        assertEquals(promotion01.getDescription(), "优惠劵：省 0.70 元");
-        assertEquals(promotion01.getItems().size(), 2);
-        PriceCalculateRespDTO.PromotionItem promotionItem011 = promotion01.getItems().get(0);
-        assertEquals(promotionItem011.getSkuId(), 10L);
-        assertEquals(promotionItem011.getOriginalPrice(), 200);
-        assertEquals(promotionItem011.getDiscountPrice(), 40);
-        PriceCalculateRespDTO.PromotionItem promotionItem012 = promotion01.getItems().get(1);
-        assertEquals(promotionItem012.getSkuId(), 20L);
-        assertEquals(promotionItem012.getOriginalPrice(), 150);
-        assertEquals(promotionItem012.getDiscountPrice(), 30);
-    }
-
     @Test
     public void testGetMeetCouponList() {
         // 准备参数

yudao-module-mall/yudao-module-trade-biz/src/main/java/cn/iocoder/yudao/module/trade/service/price/calculator/TradeCouponPriceCalculator.java

@@ -101,7 +101,8 @@ public class TradeCouponPriceCalculator implements TradePriceCalculator {
                                                                                   CouponRespDTO coupon) {
         Predicate<TradePriceCalculateRespBO.OrderItem> matchPredicate = TradePriceCalculateRespBO.OrderItem::getSelected;
         if (PromotionProductScopeEnum.SPU.getScope().equals(coupon.getProductScope())) {
-            matchPredicate = orderItem -> coupon.getProductSpuIds().contains(orderItem.getSpuId());
+            matchPredicate = matchPredicate // 额外加如下条件
+                    .and(orderItem -> coupon.getProductSpuIds().contains(orderItem.getSpuId()));
         }
         return filterList(result.getItems(), matchPredicate);
     }

yudao-module-mall/yudao-module-trade-biz/src/main/java/cn/iocoder/yudao/module/trade/service/price/calculator/TradePriceCalculatorHelper.java

@@ -15,8 +15,6 @@ import static cn.iocoder.yudao.framework.common.util.collection.CollectionUtils.
 import static cn.iocoder.yudao.framework.common.util.collection.CollectionUtils.getSumValue;
 import static java.util.Collections.singletonList;
 
-// TODO 芋艿：改成父类
-
 /**
  * {@link TradePriceCalculator} 的工具类
  *
@@ -106,6 +104,31 @@ public class TradePriceCalculatorHelper {
                 - orderItem.getPointPrice());
     }
 
+    /**
+     * 重新计算每个订单项的支付金额
+     *
+     * 【目前主要是单测使用】
+     *
+     * @param orderItems 订单项数组
+     */
+    public static void recountPayPrice(List<TradePriceCalculateRespBO.OrderItem> orderItems) {
+        orderItems.forEach(orderItem -> {
+            if (orderItem.getDiscountPrice() == null) {
+                orderItem.setDiscountPrice(0);
+            }
+            if (orderItem.getDeliveryPrice() == null) {
+                orderItem.setDeliveryPrice(0);
+            }
+            if (orderItem.getCouponPrice() == null) {
+                orderItem.setCouponPrice(0);
+            }
+            if (orderItem.getPointPrice() == null) {
+                orderItem.setPointPrice(0);
+            }
+            recountPayPrice(orderItem);
+        });
+    }
+
     /**
      * 计算已选中的订单项，总支付金额
      *

yudao-module-mall/yudao-module-trade-biz/src/main/java/cn/iocoder/yudao/module/trade/service/price/calculator/TradeRewardActivityPriceCalculator.java

@@ -53,6 +53,9 @@ public class TradeRewardActivityPriceCalculator implements TradePriceCalculator
         // 1.2 获得最大匹配的满减送活动的规则
         RewardActivityMatchRespDTO.Rule rule = getMaxMatchRewardActivityRule(rewardActivity, orderItems);
         if (rule == null) {
+            TradePriceCalculatorHelper.addNotMatchPromotion(result, orderItems,
+                    rewardActivity.getId(), rewardActivity.getName(), PromotionTypeEnum.REWARD_ACTIVITY.getType(),
+                    getRewardActivityNotMeetTip(rewardActivity));
             return;
         }
 

yudao-module-mall/yudao-module-trade-biz/src/test/java/cn/iocoder/yudao/module/trade/service/order/TradeOrderServiceTest.java

@@ -8,6 +8,7 @@ import cn.iocoder.yudao.module.member.api.user.MemberUserApi;
 import cn.iocoder.yudao.module.pay.api.order.PayOrderApi;
 import cn.iocoder.yudao.module.pay.api.order.dto.PayOrderRespDTO;
 import cn.iocoder.yudao.module.pay.enums.order.PayOrderStatusEnum;
+import cn.iocoder.yudao.module.product.api.property.dto.ProductPropertyValueDetailRespDTO;
 import cn.iocoder.yudao.module.product.api.sku.ProductSkuApi;
 import cn.iocoder.yudao.module.product.api.sku.dto.ProductSkuRespDTO;
 import cn.iocoder.yudao.module.product.api.spu.ProductSpuApi;
@@ -101,10 +102,10 @@ public class TradeOrderServiceTest extends BaseDbUnitTest {
         // mock 方法（商品 SKU 检查）
         ProductSkuRespDTO sku01 = randomPojo(ProductSkuRespDTO.class, o -> o.setId(1L).setSpuId(11L)
                 .setPrice(50).setStock(100)
-                .setProperties(singletonList(new ProductSkuRespDTO.Property().setPropertyId(111L).setValueId(222L))));
+                .setProperties(singletonList(new ProductPropertyValueDetailRespDTO().setPropertyId(111L).setValueId(222L))));
         ProductSkuRespDTO sku02 = randomPojo(ProductSkuRespDTO.class, o -> o.setId(2L).setSpuId(21L)
                 .setPrice(20).setStock(50))
-                .setProperties(singletonList(new ProductSkuRespDTO.Property().setPropertyId(333L).setValueId(444L)));
+                .setProperties(singletonList(new ProductPropertyValueDetailRespDTO().setPropertyId(333L).setValueId(444L)));
         when(productSkuApi.getSkuList(eq(asSet(1L, 2L)))).thenReturn(Arrays.asList(sku01, sku02));
         // mock 方法（商品 SPU 检查）
         ProductSpuRespDTO spu01 = randomPojo(ProductSpuRespDTO.class, o -> o.setId(11L)
@@ -114,7 +115,7 @@ public class TradeOrderServiceTest extends BaseDbUnitTest {
         when(productSpuApi.getSpuList(eq(asSet(11L, 21L)))).thenReturn(Arrays.asList(spu01, spu02));
         // mock 方法（用户收件地址的校验）
         AddressRespDTO addressRespDTO = new AddressRespDTO().setId(10L).setUserId(userId).setName("芋艿")
-                .setMobile("15601691300").setAreaId(3306L).setPostCode("85757").setDetailAddress("土豆村");
+                .setMobile("15601691300").setAreaId(3306).setPostCode("85757").setDetailAddress("土豆村");
         when(addressApi.getAddress(eq(10L), eq(userId))).thenReturn(addressRespDTO);
         // mock 方法（价格计算）
         PriceCalculateRespDTO.OrderItem priceOrderItem01 = new PriceCalculateRespDTO.OrderItem()

yudao-module-mall/yudao-module-trade-biz/src/test/java/cn/iocoder/yudao/module/trade/service/price/TradePriceServiceImplTest.java

@@ -0,0 +1,135 @@
+package cn.iocoder.yudao.module.trade.service.price;
+
+import cn.iocoder.yudao.framework.test.core.ut.BaseMockitoUnitTest;
+import cn.iocoder.yudao.module.product.api.property.dto.ProductPropertyValueDetailRespDTO;
+import cn.iocoder.yudao.module.product.api.sku.ProductSkuApi;
+import cn.iocoder.yudao.module.product.api.sku.dto.ProductSkuRespDTO;
+import cn.iocoder.yudao.module.product.api.spu.ProductSpuApi;
+import cn.iocoder.yudao.module.product.api.spu.dto.ProductSpuRespDTO;
+import cn.iocoder.yudao.module.product.enums.spu.ProductSpuStatusEnum;
+import cn.iocoder.yudao.module.trade.enums.order.TradeOrderTypeEnum;
+import cn.iocoder.yudao.module.trade.service.price.bo.TradePriceCalculateReqBO;
+import cn.iocoder.yudao.module.trade.service.price.bo.TradePriceCalculateRespBO;
+import cn.iocoder.yudao.module.trade.service.price.calculator.TradePriceCalculator;
+import org.junit.jupiter.api.Test;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.Mockito;
+
+import java.util.Arrays;
+import java.util.List;
+
+import static cn.iocoder.yudao.framework.common.util.collection.SetUtils.asSet;
+import static java.util.Collections.singletonList;
+import static org.junit.jupiter.api.Assertions.*;
+import static org.mockito.Mockito.when;
+
+/**
+ * {@link TradePriceServiceImpl} 的单元测试
+ *
+ * @author 芋道源码
+ */
+public class TradePriceServiceImplTest extends BaseMockitoUnitTest {
+
+    @InjectMocks
+    private TradePriceServiceImpl tradePriceService;
+
+    @Mock
+    private ProductSkuApi productSkuApi;
+    @Mock
+    private ProductSpuApi productSpuApi;
+    @Mock
+    private List<TradePriceCalculator> priceCalculators;
+
+    @Test
+    public void testCalculatePrice() {
+        // 准备参数
+        TradePriceCalculateReqBO calculateReqBO = new TradePriceCalculateReqBO()
+                .setType(TradeOrderTypeEnum.NORMAL.getType()).setUserId(10L)
+                .setCouponId(20L).setAddressId(30L)
+                .setItems(Arrays.asList(
+                        new TradePriceCalculateReqBO.Item().setSkuId(100L).setCount(1).setSelected(true),
+                        new TradePriceCalculateReqBO.Item().setSkuId(200L).setCount(3).setSelected(true),
+                        new TradePriceCalculateReqBO.Item().setSkuId(300L).setCount(6).setCartId(233L).setSelected(false)
+                ));
+        // mock 方法
+        List<ProductSkuRespDTO> skuList = Arrays.asList(
+                new ProductSkuRespDTO().setId(100L).setStock(500).setPrice(1000).setPicUrl("https://t.cn/1.png").setSpuId(1001L)
+                        .setProperties(singletonList(new ProductPropertyValueDetailRespDTO().setPropertyId(1L).setPropertyName("颜色")
+                                .setValueId(2L).setValueName("红色"))),
+                new ProductSkuRespDTO().setId(200L).setStock(400).setPrice(2000).setPicUrl("https://t.cn/2.png").setSpuId(1001L)
+                        .setProperties(singletonList(new ProductPropertyValueDetailRespDTO().setPropertyId(1L).setPropertyName("颜色")
+                                .setValueId(3L).setValueName("黄色"))),
+                new ProductSkuRespDTO().setId(300L).setStock(600).setPrice(3000).setPicUrl("https://t.cn/3.png").setSpuId(1001L)
+                        .setProperties(singletonList(new ProductPropertyValueDetailRespDTO().setPropertyId(1L).setPropertyName("颜色")
+                                .setValueId(4L).setValueName("黑色")))
+        );
+        when(productSkuApi.getSkuList(Mockito.eq(asSet(100L, 200L, 300L)))).thenReturn(skuList);
+        when(productSpuApi.getSpuList(Mockito.eq(asSet(1001L))))
+                .thenReturn(singletonList(new ProductSpuRespDTO().setId(1001L).setName("小菜").setCategoryId(666L)
+                        .setStatus(ProductSpuStatusEnum.ENABLE.getStatus())));
+
+        // 调用
+        TradePriceCalculateRespBO calculateRespBO = tradePriceService.calculatePrice(calculateReqBO);
+        // 断言
+        assertEquals(TradeOrderTypeEnum.NORMAL.getType(), calculateRespBO.getType());
+        assertEquals(0, calculateRespBO.getPromotions().size());
+        assertNull(calculateRespBO.getCouponId());
+        // 断言：订单价格
+        assertEquals(7000, calculateRespBO.getPrice().getTotalPrice());
+        assertEquals(0, calculateRespBO.getPrice().getDiscountPrice());
+        assertEquals(0, calculateRespBO.getPrice().getDeliveryPrice());
+        assertEquals(0, calculateRespBO.getPrice().getCouponPrice());
+        assertEquals(0, calculateRespBO.getPrice().getPointPrice());
+        assertEquals(7000, calculateRespBO.getPrice().getPayPrice());
+        // 断言：SKU 1
+        assertEquals(1001L, calculateRespBO.getItems().get(0).getSpuId());
+        assertEquals(100L, calculateRespBO.getItems().get(0).getSkuId());
+        assertEquals(1, calculateRespBO.getItems().get(0).getCount());
+        assertNull(calculateRespBO.getItems().get(0).getCartId());
+        assertTrue(calculateRespBO.getItems().get(0).getSelected());
+        assertEquals(1000, calculateRespBO.getItems().get(0).getPrice());
+        assertEquals(0, calculateRespBO.getItems().get(0).getDiscountPrice());
+        assertEquals(0, calculateRespBO.getItems().get(0).getDeliveryPrice());
+        assertEquals(0, calculateRespBO.getItems().get(0).getCouponPrice());
+        assertEquals(0, calculateRespBO.getItems().get(0).getPointPrice());
+        assertEquals(1000, calculateRespBO.getItems().get(0).getPayPrice());
+        assertEquals("小菜", calculateRespBO.getItems().get(0).getSpuName());
+        assertEquals("https://t.cn/1.png", calculateRespBO.getItems().get(0).getPicUrl());
+        assertEquals(666L, calculateRespBO.getItems().get(0).getCategoryId());
+        assertEquals(skuList.get(0).getProperties(), calculateRespBO.getItems().get(0).getProperties());
+        // 断言：SKU 2
+        assertEquals(1001L, calculateRespBO.getItems().get(1).getSpuId());
+        assertEquals(200L, calculateRespBO.getItems().get(1).getSkuId());
+        assertEquals(3, calculateRespBO.getItems().get(1).getCount());
+        assertNull(calculateRespBO.getItems().get(1).getCartId());
+        assertTrue(calculateRespBO.getItems().get(1).getSelected());
+        assertEquals(2000, calculateRespBO.getItems().get(1).getPrice());
+        assertEquals(0, calculateRespBO.getItems().get(1).getDiscountPrice());
+        assertEquals(0, calculateRespBO.getItems().get(1).getDeliveryPrice());
+        assertEquals(0, calculateRespBO.getItems().get(1).getCouponPrice());
+        assertEquals(0, calculateRespBO.getItems().get(1).getPointPrice());
+        assertEquals(6000, calculateRespBO.getItems().get(1).getPayPrice());
+        assertEquals("小菜", calculateRespBO.getItems().get(1).getSpuName());
+        assertEquals("https://t.cn/2.png", calculateRespBO.getItems().get(1).getPicUrl());
+        assertEquals(666L, calculateRespBO.getItems().get(1).getCategoryId());
+        assertEquals(skuList.get(1).getProperties(), calculateRespBO.getItems().get(1).getProperties());
+        // 断言：SKU 3
+        assertEquals(1001L, calculateRespBO.getItems().get(2).getSpuId());
+        assertEquals(300L, calculateRespBO.getItems().get(2).getSkuId());
+        assertEquals(6, calculateRespBO.getItems().get(2).getCount());
+        assertEquals(233L, calculateRespBO.getItems().get(2).getCartId());
+        assertFalse(calculateRespBO.getItems().get(2).getSelected());
+        assertEquals(3000, calculateRespBO.getItems().get(2).getPrice());
+        assertEquals(0, calculateRespBO.getItems().get(2).getDiscountPrice());
+        assertEquals(0, calculateRespBO.getItems().get(2).getDeliveryPrice());
+        assertEquals(0, calculateRespBO.getItems().get(2).getCouponPrice());
+        assertEquals(0, calculateRespBO.getItems().get(2).getPointPrice());
+        assertEquals(18000, calculateRespBO.getItems().get(2).getPayPrice());
+        assertEquals("小菜", calculateRespBO.getItems().get(2).getSpuName());
+        assertEquals("https://t.cn/3.png", calculateRespBO.getItems().get(2).getPicUrl());
+        assertEquals(666L, calculateRespBO.getItems().get(2).getCategoryId());
+        assertEquals(skuList.get(2).getProperties(), calculateRespBO.getItems().get(2).getProperties());
+    }
+
+}

yudao-module-mall/yudao-module-trade-biz/src/test/java/cn/iocoder/yudao/module/trade/service/price/calculator/TradeCouponPriceCalculatorTest.java

@@ -0,0 +1,143 @@
+package cn.iocoder.yudao.module.trade.service.price.calculator;
+
+import cn.iocoder.yudao.framework.test.core.ut.BaseMockitoUnitTest;
+import cn.iocoder.yudao.module.promotion.api.coupon.CouponApi;
+import cn.iocoder.yudao.module.promotion.api.coupon.dto.CouponRespDTO;
+import cn.iocoder.yudao.module.promotion.api.coupon.dto.CouponValidReqDTO;
+import cn.iocoder.yudao.module.promotion.enums.common.PromotionDiscountTypeEnum;
+import cn.iocoder.yudao.module.promotion.enums.common.PromotionProductScopeEnum;
+import cn.iocoder.yudao.module.promotion.enums.common.PromotionTypeEnum;
+import cn.iocoder.yudao.module.trade.service.price.bo.TradePriceCalculateReqBO;
+import cn.iocoder.yudao.module.trade.service.price.bo.TradePriceCalculateRespBO;
+import org.junit.jupiter.api.Test;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+
+import java.util.ArrayList;
+
+import static cn.iocoder.yudao.framework.test.core.util.RandomUtils.randomPojo;
+import static java.util.Arrays.asList;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.when;
+
+/**
+ * {@link TradeCouponPriceCalculator} 的单元测试类
+ *
+ * @author 芋道源码
+ */
+class TradeCouponPriceCalculatorTest extends BaseMockitoUnitTest {
+
+    @InjectMocks
+    private TradeCouponPriceCalculator tradeCouponPriceCalculator;
+
+    @Mock
+    private CouponApi couponApi;
+
+    @Test
+    void calculate() {
+        // 准备参数
+        TradePriceCalculateReqBO param = new TradePriceCalculateReqBO()
+                .setUserId(233L).setCouponId(1024L)
+                .setItems(asList(
+                        new TradePriceCalculateReqBO.Item().setSkuId(10L).setCount(2).setSelected(true), // 匹配优惠劵
+                        new TradePriceCalculateReqBO.Item().setSkuId(20L).setCount(3).setSelected(true), // 匹配优惠劵
+                        new TradePriceCalculateReqBO.Item().setSkuId(30L).setCount(4).setSelected(true), // 不匹配优惠劵
+                        new TradePriceCalculateReqBO.Item().setSkuId(40L).setCount(5).setSelected(false) // 匹配优惠劵，但是未选中
+                    ));
+        TradePriceCalculateRespBO result = new TradePriceCalculateRespBO()
+                .setPrice(new TradePriceCalculateRespBO.Price())
+                .setPromotions(new ArrayList<>())
+                .setItems(asList(
+                        new TradePriceCalculateRespBO.OrderItem().setSkuId(10L).setCount(2).setSelected(true)
+                                .setPrice(100).setSpuId(1L),
+                        new TradePriceCalculateRespBO.OrderItem().setSkuId(20L).setCount(3).setSelected(true)
+                                .setPrice(50).setSpuId(2L),
+                        new TradePriceCalculateRespBO.OrderItem().setSkuId(30L).setCount(4).setSelected(true)
+                                .setPrice(30).setSpuId(3L),
+                        new TradePriceCalculateRespBO.OrderItem().setSkuId(40L).setCount(5).setSelected(false)
+                                .setPrice(60).setSpuId(1L)
+                ));
+        // 保证价格被初始化上
+        TradePriceCalculatorHelper.recountPayPrice(result.getItems());
+        TradePriceCalculatorHelper.recountAllPrice(result);
+
+        // mock 方法（优惠劵 Coupon 信息）
+        CouponRespDTO coupon = randomPojo(CouponRespDTO.class, o -> o.setId(1024L).setName("程序员节")
+                .setProductScope(PromotionProductScopeEnum.SPU.getScope()).setProductSpuIds(asList(1L, 2L))
+                .setUsePrice(350).setDiscountType(PromotionDiscountTypeEnum.PERCENT.getType())
+                .setDiscountPercent(50).setDiscountLimitPrice(70));
+        when(couponApi.validateCoupon(eq(new CouponValidReqDTO().setId(1024L).setUserId(233L)))).thenReturn(coupon);
+
+        // 调用
+        tradeCouponPriceCalculator.calculate(param, result);
+        // 断言
+        assertEquals(result.getCouponId(), 1024L);
+        // 断言：Price 部分
+        TradePriceCalculateRespBO.Price price = result.getPrice();
+        assertEquals(price.getTotalPrice(), 470);
+        assertEquals(price.getDiscountPrice(), 0);
+        assertEquals(price.getPointPrice(), 0);
+        assertEquals(price.getDeliveryPrice(), 0);
+        assertEquals(price.getCouponPrice(), 70);
+        assertEquals(price.getPayPrice(), 400);
+        // 断言：SKU 1
+        TradePriceCalculateRespBO.OrderItem orderItem01 = result.getItems().get(0);
+        assertEquals(orderItem01.getSkuId(), 10L);
+        assertEquals(orderItem01.getCount(), 2);
+        assertEquals(orderItem01.getPrice(), 100);
+        assertEquals(orderItem01.getDiscountPrice(), 0);
+        assertEquals(orderItem01.getDeliveryPrice(), 0);
+        assertEquals(orderItem01.getCouponPrice(), 40);
+        assertEquals(orderItem01.getPointPrice(), 0);
+        assertEquals(orderItem01.getPayPrice(), 160);
+        // 断言：SKU 2
+        TradePriceCalculateRespBO.OrderItem orderItem02 = result.getItems().get(1);
+        assertEquals(orderItem02.getSkuId(), 20L);
+        assertEquals(orderItem02.getCount(), 3);
+        assertEquals(orderItem02.getPrice(), 50);
+        assertEquals(orderItem02.getDiscountPrice(), 0);
+        assertEquals(orderItem02.getDeliveryPrice(), 0);
+        assertEquals(orderItem02.getCouponPrice(), 30);
+        assertEquals(orderItem02.getPointPrice(), 0);
+        assertEquals(orderItem02.getPayPrice(), 120);
+        // 断言：SKU 3
+        TradePriceCalculateRespBO.OrderItem orderItem03 = result.getItems().get(2);
+        assertEquals(orderItem03.getSkuId(), 30L);
+        assertEquals(orderItem03.getCount(), 4);
+        assertEquals(orderItem03.getPrice(), 30);
+        assertEquals(orderItem03.getDiscountPrice(), 0);
+        assertEquals(orderItem03.getCouponPrice(), 0);
+        assertEquals(orderItem03.getPointPrice(), 0);
+        assertEquals(orderItem03.getPayPrice(), 120);
+        // 断言：SKU 4
+        TradePriceCalculateRespBO.OrderItem orderItem04 = result.getItems().get(3);
+        assertEquals(orderItem04.getSkuId(), 40L);
+        assertEquals(orderItem04.getCount(), 5);
+        assertEquals(orderItem04.getPrice(), 60);
+        assertEquals(orderItem04.getDiscountPrice(), 0);
+        assertEquals(orderItem04.getCouponPrice(), 0);
+        assertEquals(orderItem04.getPointPrice(), 0);
+        assertEquals(orderItem04.getPayPrice(), 300);
+        // 断言 Promotion 部分
+        assertEquals(result.getPromotions().size(), 1);
+        TradePriceCalculateRespBO.Promotion promotion01 = result.getPromotions().get(0);
+        assertEquals(promotion01.getId(), 1024L);
+        assertEquals(promotion01.getName(), "程序员节");
+        assertEquals(promotion01.getType(), PromotionTypeEnum.COUPON.getType());
+        assertEquals(promotion01.getTotalPrice(), 350);
+        assertEquals(promotion01.getDiscountPrice(), 70);
+        assertTrue(promotion01.getMatch());
+        assertEquals(promotion01.getDescription(), "优惠劵：省 0.70 元");
+        assertEquals(promotion01.getItems().size(), 2);
+        TradePriceCalculateRespBO.PromotionItem promotionItem011 = promotion01.getItems().get(0);
+        assertEquals(promotionItem011.getSkuId(), 10L);
+        assertEquals(promotionItem011.getTotalPrice(), 200);
+        assertEquals(promotionItem011.getDiscountPrice(), 40);
+        TradePriceCalculateRespBO.PromotionItem promotionItem012 = promotion01.getItems().get(1);
+        assertEquals(promotionItem012.getSkuId(), 20L);
+        assertEquals(promotionItem012.getTotalPrice(), 150);
+        assertEquals(promotionItem012.getDiscountPrice(), 30);
+    }
+}