修复退款幂等与补偿重试

2026-06-14 07:55:02 +08:00
parent 607d2415a1
commit fec8e37181
11 changed files with 772 additions and 143 deletions
@@ -282,3 +282,67 @@ func TestNotifyResultHasRequiredFields(t *testing.T) {
 		t.Fatal("NotifyResult.Message should not be empty")
 	}
 }
+
+func TestStartRefundDoesNotCreateNewOrderWhenFailedRefundExists(t *testing.T) {
+	db := setupPaymentTestDB(t)
+	repo := NewRepository(db, nil, nil)
+	order := model.RentalOrder{
+		ID:                1001,
+		OrderNo:           "ORD202606140001",
+		RenterID:          11,
+		RentAmountCent:    800,
+		DepositAmountCent: 200,
+		RefundStatus:      "failed",
+		RefundAmountCent:  1000,
+		Status:            "closed",
+	}
+	if err := db.Create(&order).Error; err != nil {
+		t.Fatalf("create order failed: %v", err)
+	}
+	original := model.PaymentOrder{
+		PaymentNo:       "PAY202606140001",
+		OrderID:         order.ID,
+		OrderNo:         order.OrderNo,
+		UserID:          order.RenterID,
+		Provider:        "mock",
+		ThirdOrderID:    "PAY202606140001",
+		ProviderOrderID: "MOCKPAY202606140001",
+		AmountCent:      1000,
+		BizType:         "order_pay",
+		Status:          "paid",
+	}
+	if err := db.Create(&original).Error; err != nil {
+		t.Fatalf("create original payment failed: %v", err)
+	}
+	existingRefund := model.PaymentOrder{
+		PaymentNo:    "PAY202606140002",
+		OrderID:      order.ID,
+		OrderNo:      order.OrderNo,
+		UserID:       order.RenterID,
+		Provider:     "mock",
+		ThirdOrderID: "REF202606140002",
+		AmountCent:   1000,
+		BizType:      "admin_refund",
+		Status:       "failed",
+	}
+	if err := db.Create(&existingRefund).Error; err != nil {
+		t.Fatalf("create existing refund failed: %v", err)
+	}
+
+	dto, err := repo.StartRefund(t.Context(), order.ID, 1000, "admin_refund", "后台人工退款")
+	if err != nil {
+		t.Fatalf("StartRefund() error = %v", err)
+	}
+	if dto.ID != existingRefund.ID {
+		t.Fatalf("StartRefund() returned payment id %d, want existing %d", dto.ID, existingRefund.ID)
+	}
+	var count int64
+	if err := db.Model(&model.PaymentOrder{}).
+		Where("order_id = ? AND biz_type = ?", order.ID, "admin_refund").
+		Count(&count).Error; err != nil {
+		t.Fatalf("count refund orders failed: %v", err)
+	}
+	if count != 1 {
+		t.Fatalf("refund order count = %d, want 1", count)
+	}
+}