127 lines
4.5 KiB
JavaScript
127 lines
4.5 KiB
JavaScript
/**
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* QmtHealthMonitor 自适应探测 回归测试（R-022 / 迭代 19，2026-09-09）
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*
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* 运行：node scripts/test-health-monitor.mjs
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* 隔离：纯内存 mock（mock fetch + mock settings scope），用短间隔参数测真实 setTimeout 调度。
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* 背景：原实现固定 5 分钟探测，QMT Bridge 恢复后指示灯要等满 5 分钟（老师反馈「自动检查没生效」）；
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* 本测试守护「异常/未知 → 快速重试，健康 → 稳态间隔」的自适应节奏。
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*/
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let passed = 0;
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let failed = 0;
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function ok(cond, name) {
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if (cond) { passed++; console.log(' ✓ ' + name); }
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else { failed++; console.error(' ✗ ' + name); }
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}
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const sleep = (ms) => new Promise((r) => setTimeout(r, ms));
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const { QmtHealthMonitor } = await import('../src/data-source/QmtHealthMonitor.js');
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/** 可编程 settings scope（resolveActiveBaseUrl 依赖 scope.get() → qmtConnections） */
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function mockSettings(baseUrl) {
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return {
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get: () => ({
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qmtConnections: {
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list: [{ id: 'c1', name: 'bridge', baseUrl, order: 1 }],
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activeId: 'c1',
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defaultId: '',
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},
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}),
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};
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}
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const BRIDGE_URL = 'http://bridge.test:8610';
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/** 可编程 fetch mock：bridgeUp=false 时抛连接错误 */
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function mockFetch() {
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const calls = [];
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let up = true;
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globalThis.fetch = async (url) => {
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calls.push({ url: String(url), t: Date.now() });
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if (!up) throw new Error('fetch failed: ECONNREFUSED bridge down');
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return { ok: true, status: 200 };
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};
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return {
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calls,
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set up(v) { up = v; },
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get up() { return up; },
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};
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}
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const RETRY_MS = 40;
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const INTERVAL_MS = 300;
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console.log('[1] 启动即探测 + 缓存读取（健康）');
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{
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const fetch = mockFetch();
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const monitor = new QmtHealthMonitor({
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runtime: { settings: mockSettings(BRIDGE_URL), dataSource: { baseUrl: BRIDGE_URL } },
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intervalMs: INTERVAL_MS, retryMs: RETRY_MS,
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});
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await monitor.probe(); // 等价 start() 的立即探测
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ok(fetch.calls.length === 1, '启动探测发起 1 次');
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ok(fetch.calls[0].url === BRIDGE_URL + '/health', '探测地址 = 激活 baseUrl + /health');
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const st = monitor.getStatus();
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ok(st.healthy === true && st.fromCache === true, '缓存 healthy=true 且 fromCache=true');
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await monitor.stop();
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}
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console.log('[2] 异常 → 快速重试自动恢复（核心回归：Bridge 启动后灯 ≤ 重试间隔回绿）');
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{
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const fetch = mockFetch();
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fetch.up = false;
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const monitor = new QmtHealthMonitor({
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runtime: { settings: mockSettings(BRIDGE_URL), dataSource: { baseUrl: BRIDGE_URL } },
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intervalMs: INTERVAL_MS, retryMs: RETRY_MS,
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});
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monitor.start();
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await sleep(RETRY_MS * 3); // 快速重试窗口内应已多次探测
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ok(fetch.calls.length >= 2, '异常态多次快速重试（' + fetch.calls.length + ' 次 ≥ 2）');
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ok(monitor.getStatus().healthy === false, '异常缓存 healthy=false');
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fetch.up = true; // 模拟 QMT Bridge 启动
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const before = fetch.calls.length;
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await sleep(RETRY_MS * 4); // 等下一个快速重试命中
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const st = monitor.getStatus();
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ok(fetch.calls.length > before, '恢复后被自动重探测到');
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ok(st.healthy === true, '恢复后缓存 healthy=true（灯将回绿，未等 5 分钟稳态间隔）');
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await monitor.stop();
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}
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console.log('[3] 健康稳态：回落到长间隔，不空转');
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{
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const fetch = mockFetch();
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const monitor = new QmtHealthMonitor({
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runtime: { settings: mockSettings(BRIDGE_URL), dataSource: { baseUrl: BRIDGE_URL } },
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intervalMs: INTERVAL_MS, retryMs: RETRY_MS,
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});
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monitor.start();
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await sleep(RETRY_MS * 4); // 小于稳态间隔：健康态不应按重试节奏空转
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ok(fetch.calls.length === 1, '健康态在稳态间隔内只探测 1 次（无快速空转）');
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await sleep(INTERVAL_MS + RETRY_MS * 2); // 跨过稳态间隔
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ok(fetch.calls.length === 2, '跨过稳态间隔后又探测 1 次（共 2 次）');
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await monitor.stop();
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}
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console.log('[4] stop() 后停止自动调度');
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{
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const fetch = mockFetch();
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fetch.up = false;
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const monitor = new QmtHealthMonitor({
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runtime: { settings: mockSettings(BRIDGE_URL), dataSource: { baseUrl: BRIDGE_URL } },
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intervalMs: INTERVAL_MS, retryMs: RETRY_MS,
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});
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monitor.start();
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await sleep(RETRY_MS * 2);
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const before = fetch.calls.length;
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monitor.stop();
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fetch.up = true;
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await sleep(RETRY_MS * 4);
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ok(fetch.calls.length === before, 'stop 后无自动探测');
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}
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console.log('----');
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console.log(passed + ' passed, ' + failed + ' failed');
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if (failed > 0) process.exit(1);
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