记录退款失败请求参数

backend/internal/modules/payment/repository_integration_test.go

@@ -1,6 +1,8 @@
 package payment
 
 import (
+	"context"
+	"encoding/json"
 	"testing"
 	"time"
 
@@ -114,6 +116,53 @@ func createPayableOrderFixture(t *testing.T, db *gorm.DB, suffix string, createP
 	return f
 }
 
+func TestMarkRefundFailedPersistsRawRequest(t *testing.T) {
+	db := setupPaymentTestDB(t)
+	f := createPayableOrderFixture(t, db, "RAWREQ", true)
+	refund := model.PaymentOrder{
+		PaymentNo:       "PAYREFRAWREQ",
+		OrderID:         f.Order.ID,
+		OrderNo:         f.Order.OrderNo,
+		UserID:          f.Renter.ID,
+		Provider:        "lakala",
+		MerchantID:      "merchant-1",
+		ThirdOrderID:    "REFRAWREQ",
+		ProviderOrderID: "",
+		AmountCent:      99,
+		BizType:         "checkout_refund",
+		Status:          "refunding",
+	}
+	if err := db.Create(&refund).Error; err != nil {
+		t.Fatalf("create refund payment failed: %v", err)
+	}
+
+	repo := NewRepository(db, nil, nil)
+	rawRequest := map[string]string{
+		"merchant_no":     "merchant-1",
+		"out_trade_no":    "REFRAWREQ",
+		"refund_amount":   "99",
+		"origin_trade_no": "TRADE123",
+	}
+	err := repo.markRefundFailed(context.Background(), refund.ID, f.Order.ID, refund.AmountCent, map[string]string{"error": "lakala http status 400"}, rawRequest)
+	if err != nil {
+		t.Fatalf("mark refund failed: %v", err)
+	}
+
+	var saved model.PaymentOrder
+	if err := db.First(&saved, refund.ID).Error; err != nil {
+		t.Fatalf("find refund payment failed: %v", err)
+	}
+	var got map[string]string
+	if err := json.Unmarshal(saved.RawRequest, &got); err != nil {
+		t.Fatalf("decode raw_request: %v", err)
+	}
+	for key, want := range rawRequest {
+		if got[key] != want {
+			t.Fatalf("raw_request[%s] = %q, want %q; full=%v", key, got[key], want, got)
+		}
+	}
+}
+
 // TestCanReusePaymentWithSameProvider 测试相同渠道可复用
 func TestCanReusePaymentWithSameProvider(t *testing.T) {
 	payment := model.PaymentOrder{