feat: 支持无SKU目录导入策略 (#141)

admin/repository/mysql_db_integration_test.go

@@ -382,6 +382,53 @@ func TestMySQLMigrate_V7形状错误不记版本(t *testing.T) {
 	}
 }
 
+func TestMySQLMigrate_V7升级V8保留内部引用且可重放(t *testing.T) {
+	db := openMySQLMigrationTestDB(t)
+	defer db.Close()
+	cleanMySQLTestSchema(t, db)
+	defer cleanMySQLTestSchema(t, db)
+	prepareMySQLV7(t, db)
+	now := "2026-08-11T00:00:00Z"
+	mustExec(t, db, `INSERT INTO shopee_products(goods_id,title,source,created_at,updated_at) VALUES('S-1','商品','report',?,?)`, now, now)
+	mustExec(t, db, `INSERT INTO shopee_skus(sku_id,goods_id,spec_raw,created_at,updated_at) VALUES('REAL-1','S-1',' 黑色,  M ',?,?)`, now, now)
+	// 模拟全部 DDL/回填已提交，但 schema_migrations 尚未记录 v8。
+	if err := migrateMySQLV8(db); err != nil {
+		t.Fatal(err)
+	}
+	if err := MigrateMySQL(db); err != nil {
+		t.Fatal(err)
+	}
+	if err := MigrateMySQL(db); err != nil {
+		t.Fatalf("v8 重跑失败: %v", err)
+	}
+	var internalID, externalID, key string
+	if err := db.QueryRow(`SELECT sku_id,shopee_sku_id,spec_key FROM shopee_skus`).Scan(&internalID, &externalID, &key); err != nil {
+		t.Fatal(err)
+	}
+	if internalID != "REAL-1" || externalID != "REAL-1" || key != "黑色, M" {
+		t.Fatalf("历史身份未保留：internal=%q external=%q key=%q", internalID, externalID, key)
+	}
+}
+
+func TestMySQLMigrate_V8重复规格停止且不记版本(t *testing.T) {
+	db := openMySQLMigrationTestDB(t)
+	defer db.Close()
+	cleanMySQLTestSchema(t, db)
+	defer cleanMySQLTestSchema(t, db)
+	prepareMySQLV7(t, db)
+	now := "2026-08-11T00:00:00Z"
+	mustExec(t, db, `INSERT INTO shopee_products(goods_id,title,source,created_at,updated_at) VALUES('S-1','商品','report',?,?)`, now, now)
+	mustExec(t, db, `INSERT INTO shopee_skus(sku_id,goods_id,spec_raw,created_at,updated_at) VALUES('A','S-1','黑色,M',?,?),('B','S-1','黑色,M',?,?)`, now, now, now, now)
+	if err := MigrateMySQL(db); err == nil || !strings.Contains(err.Error(), "重复规格") {
+		t.Fatalf("应明确阻止冲突迁移：%v", err)
+	}
+	var count int
+	db.QueryRow(`SELECT COUNT(*) FROM schema_migrations WHERE version=8`).Scan(&count)
+	if count != 0 {
+		t.Fatal("冲突迁移不得记录 v8")
+	}
+}
+
 func openMySQLMigrationTestDB(t *testing.T) *sql.DB {
 	t.Helper()
 	if os.Getenv("CMAUTOBUY_MYSQL_TEST") != "1" {
@@ -436,6 +483,15 @@ func prepareMySQLV6(t *testing.T, db *sql.DB) {
 		VALUES (5,'2026-08-10T00:00:00Z'),(6,'2026-08-10T00:00:00Z')`)
 }
 
+func prepareMySQLV7(t *testing.T, db *sql.DB) {
+	t.Helper()
+	prepareMySQLV6(t, db)
+	if err := migrateMySQLV7(db); err != nil {
+		t.Fatal(err)
+	}
+	mustExec(t, db, `INSERT INTO schema_migrations(version,applied_at) VALUES (7,'2026-08-11T00:00:00Z')`)
+}
+
 func mustExec(t *testing.T, db *sql.DB, query string, args ...any) {
 	t.Helper()
 	if _, err := db.Exec(query, args...); err != nil {