Test: [BADA-357] 결제 테스트코드 작성

src/main/java/com/TwoSeaU/BaData/domain/trade/dto/request/GetMerchantUidRequest.java

@@ -2,14 +2,12 @@
 
 import jakarta.validation.constraints.NotNull;
 import jakarta.validation.constraints.PositiveOrZero;
-import lombok.AccessLevel;
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-import lombok.NoArgsConstructor;
+import lombok.*;
 
 import java.math.BigDecimal;
 
 @Getter
+@Builder
 @AllArgsConstructor(access = AccessLevel.PROTECTED)
 @NoArgsConstructor(access = AccessLevel.PROTECTED)
 public class GetMerchantUidRequest {

src/main/java/com/TwoSeaU/BaData/domain/trade/enums/PaymentStatus.java

@@ -6,5 +6,5 @@
 @Getter
 @RequiredArgsConstructor
 public enum PaymentStatus {
-    PAID, PENDING, CANCELED;
+    PAID, PENDING, CANCELED, REFUNDED;
 }

src/main/java/com/TwoSeaU/BaData/domain/trade/exception/TradeException.java

@@ -51,6 +51,7 @@ public enum TradeException implements BaseException {
     GIFTICON_NOT_FOUND(HttpStatus.NOT_FOUND, 3039, "신고하려는 게시글이 기프티콘이 아닙니다."),
     BARCODE_NOT_VIEWED(HttpStatus.BAD_REQUEST, 3040, "바코드를 조회하지 않은 기프티콘은 신고할 수 없습니다."),
     SOLD_POST_ALREADY(HttpStatus.BAD_REQUEST, 3041, "이미 판매 완료된 게시글입니다."),
+    REFUND_FAILED(HttpStatus.INTERNAL_SERVER_ERROR, 3042, "환불에 실패했습니다.")
     ;
 
     private final HttpStatus httpStatus;

src/main/java/com/TwoSeaU/BaData/domain/trade/service/PaymentService.java

@@ -114,7 +114,7 @@ private void cancelPayment(final String impUid) {
         }
         catch (IamportResponseException | IOException e){
             log.error("impUid {}에 대한 결제 환불에 실패했습니다. :", impUid, e);
-            throw new GeneralException(TradeException.PAYMENT_FAILED);
+            throw new GeneralException(TradeException.REFUND_FAILED);
         }
     }
 
@@ -131,30 +131,34 @@ public GetValidatePaymentResponse validateIamport(final String impUid, final Lon
         final Post post = postRepository.findByIdWithLock(postId)
                 .orElseThrow(() -> new GeneralException(TradeException.POST_NOT_FOUND));
 
+        final Payment payment = paymentRepository.findByMerchantUid(portOnePayment.getResponse().getMerchantUid())
+                .orElseThrow(() -> new GeneralException(TradeException.PAYMENT_NOT_FOUND));
+
         if (post.getIsDeleted()) {
             cancelPayment(impUid);
+            payment.updatePaymentStatus(PaymentStatus.REFUNDED);
             throw new GeneralException(TradeException.DELETED_POST_ACCESS_DENIED);
         }
 
         if (post.getIsSold()) {
             cancelPayment(impUid);
+            payment.updatePaymentStatus(PaymentStatus.REFUNDED);
             throw new GeneralException(TradeException.PAYMENT_DUPLICATE);
         }
 
         if (Objects.equals(post.getSeller().getId(), user.getId())) {
             throw new GeneralException(TradeException.SELF_PAYMENT_DENIED);
         }
 
-        final Payment payment = paymentRepository.findByMerchantUid(portOnePayment.getResponse().getMerchantUid())
-                .orElseThrow(() -> new GeneralException(TradeException.PAYMENT_NOT_FOUND));
-
         if (payment.getAmount().compareTo(portOnePayment.getResponse().getAmount()) != 0) {
             cancelPayment(impUid);
+            payment.updatePaymentStatus(PaymentStatus.REFUNDED);
             throw new GeneralException(TradeException.PAYMENT_AMOUNT_MISMATCH);
         }
 
         if (payment.getUseCoin().intValue() > user.getCoin()) {
             cancelPayment(impUid);
+            payment.updatePaymentStatus(PaymentStatus.REFUNDED);
             throw new GeneralException(TradeException.COIN_NOT_ENOUGH);
         }