// Copyright (c) 2025-2026, Kirky.X
//
// MIT License
//
// TTL 控制集成测试 - 简化版本
//
// 测试 TTL 查询、刷新和 touch 操作。
// ponytail: 4 empty test functions removed (ttl_control, l1_ttl, l2_ttl, expiration)
// These were shells referencing a deleted TwoLevelClient API.
// Add real tests when TTL control is re-implemented on the new Cache API.