增加文档

backend/internal/modules/paymentconfig/repository_test.go

@@ -67,8 +67,8 @@ func TestValidateCreateRequestRequiresShunchengSecretID(t *testing.T) {
 	}
 }
 
-// TestListUsesSuccessfulPaymentStats 验证配置页只统计成功支付，不把打开二维码或取消订单算作成交。
-func TestListUsesSuccessfulPaymentStats(t *testing.T) {
+// TestListFlagsPaymentReferences 验证列表只批量标记是否存在支付引用，不再聚合所有支付记录。
+func TestListFlagsPaymentReferences(t *testing.T) {
 	db := database.NewTestDB()
 	if err := database.AutoMigrateIfMissing(db, &model.PaymentMerchantConfig{}, &model.PaymentOrder{}); err != nil {
 		t.Fatalf("migrate failed: %v", err)
@@ -142,13 +142,46 @@ func TestListUsesSuccessfulPaymentStats(t *testing.T) {
 	if total != 1 || len(items) != 1 {
 		t.Fatalf("items/total = %d/%d, want 1/1", len(items), total)
 	}
-	if items[0].TotalTransactions != 1 || items[0].TotalAmountCent != 10130 {
-		t.Fatalf("success stats = %d/%d, want 1/10130", items[0].TotalTransactions, items[0].TotalAmountCent)
+	if !items[0].HasPaymentRecords {
+		t.Fatal("has_payment_records should be true")
 	}
-	if items[0].ReferenceCount != 3 {
-		t.Fatalf("reference_count = %d, want 3", items[0].ReferenceCount)
+}
+
+func TestDeleteRejectsReferencedConfig(t *testing.T) {
+	db := database.NewTestDB()
+	if err := database.AutoMigrateIfMissing(db, &model.PaymentMerchantConfig{}, &model.PaymentOrder{}); err != nil {
+		t.Fatalf("migrate failed: %v", err)
 	}
-	if items[0].LastUsedAt == nil {
-		t.Fatal("last success pay time should not be nil")
+	config := model.PaymentMerchantConfig{
+		Name:        "已有交易配置",
+		Provider:    "lakala",
+		MerchantID:  "M1",
+		PayWay:      "WXZF",
+		Status:      "active",
+		Environment: "production",
+	}
+	if err := db.Create(&config).Error; err != nil {
+		t.Fatalf("create config failed: %v", err)
+	}
+	payment := model.PaymentOrder{
+		PaymentNo:       "PAY-DELETE-GUARD",
+		OrderID:         1,
+		OrderNo:         "ORD-DELETE-GUARD",
+		UserID:          2,
+		PaymentConfigID: config.ID,
+		Provider:        "lakala",
+		MerchantID:      "M1",
+		ThirdOrderID:    "PAY-DELETE-GUARD",
+		PayWay:          "WXZF",
+		BizType:         "order_pay",
+		Status:          "paid",
+	}
+	if err := db.Create(&payment).Error; err != nil {
+		t.Fatalf("create payment failed: %v", err)
+	}
+
+	repo := NewRepository(db, nil)
+	if err := repo.Delete(t.Context(), config.ID, 0, AuditMeta{}); err != ErrCannotDeleteInUse {
+		t.Fatalf("Delete() error = %v, want ErrCannotDeleteInUse", err)
 	}
 }