2026-09-17 17:03:27 +08:00
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/**
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* Manager 侧 `RemoteSpawner.endpointFor` 的**端点翻译接线**单测(覆盖网络 R4)。
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*
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* ## 为什么单独立一个文件(2026-09-16 实测代价)
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* `translateEndpoint` 是 R4 的**唯一**翻译点:`via='relay'` 的 host,其实例在 Worker 上监听
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* `127.0.0.1:<实例端口>`,而 Manager 必须拨 relay 为那个端口开的**动态回环口号**。
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*
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* 首版实现里 `RemoteSpawner` 的构造函数**漏了 `this.translateEndpoint = options.translateEndpoint`**
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* —— 于是整个翻译**静默失效**:`endpointFor` 原样返回 Worker 侧口号 ⇒ Manager 往**自己本机**
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* 拨 `127.0.0.1:21000` ⇒ 连接被拒两次 ⇒ 代理 `reply.raw.destroy()`。
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* 现场表现只有两条:浏览器/curl 看到 **`Empty reply from server`**;平台日志**一行错误都没有**。
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* (定位靠"在 47 上临时监听 21000,请求被这个探针接走"——即**用判别器测,而不是读代码猜**。)
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*
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* ⇒ 本文件把"翻译必须真的生效"钉成断言:**构造时就验**,不依赖集群环境、不依赖 relay 在跑。
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*
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* 运行:`node --test test/remote-spawner.test.mjs`(已登记进 `npm test` / `npm run verify`)。
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*
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* @module test/remote-spawner
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*/
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import assert from 'node:assert/strict'
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import { test } from 'node:test'
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import { RemoteSpawner } from '../lib/supervisor/remote-spawner.js'
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/* ─────────── 小工具 ─────────── */
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/** Worker 侧 agent 的回包(`GET /endpoint/:userId` 的形状)。 */
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function fakeFetch(payload) {
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const calls = []
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const impl = async (url, init) => {
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calls.push(`${init?.method ?? 'GET'} ${url}`)
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return { ok: true, status: 200, json: async () => payload, text: async () => JSON.stringify(payload) }
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}
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impl.calls = calls
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return impl
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}
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/** `via='relay'` 的一台 worker:agent 口号 19000,relay 已把它映射到本机 38253。 */
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const W106 = {
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2026-09-19 15:12:19 +08:00
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hostId: 'w-2',
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2026-09-17 17:03:27 +08:00
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agentUrl: 'http://127.0.0.1:19000',
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2026-09-19 15:12:19 +08:00
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reachability: { hostId: 'w-2', via: 'relay', address: '127.0.0.1:38253', scheme: 'http' },
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2026-09-17 17:03:27 +08:00
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token: 'tok-106',
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}
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function make(opts = {}) {
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return new RemoteSpawner({
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agentUrl: 'http://127.0.0.1:19100',
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token: 'tok-local',
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2026-09-19 15:12:19 +08:00
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defaultHostId: 'w-1',
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hostIdFor: async () => 'w-2',
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2026-09-17 17:03:27 +08:00
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hostsProvider: async () => [W106],
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fetchImpl: fakeFetch({ running: true, host: '127.0.0.1', port: 21000 }),
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...opts,
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})
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}
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/* ─────────── T1–T4 ─────────── */
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test('T1 翻译器被真的接上:传入的 hostId/endpoint 与返回值都要生效', async () => {
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const seen = []
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const s = make({
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translateEndpoint: (hostId, ep) => {
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seen.push([hostId, ep])
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return { host: '127.0.0.1', port: 34241 }
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},
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})
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assert.deepEqual(await s.endpointFor('u1'), { host: '127.0.0.1', port: 34241 })
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// ★ 这一条就是首版漏赋值时唯一会红的断言:漏了 ⇒ seen 为空、返回 {21000}
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2026-09-19 15:12:19 +08:00
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assert.deepEqual(seen, [['w-2', { host: '127.0.0.1', port: 21000 }]])
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2026-09-17 17:03:27 +08:00
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})
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test('T2 未给翻译器 ⇒ 原样透传(local / manager-ssh 的同号语义,行为零变化)', async () => {
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const s = make()
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assert.deepEqual(await s.endpointFor('u1'), { host: '127.0.0.1', port: 21000 })
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})
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test('T3 翻译器回 undefined ⇒ endpointFor 也回 undefined(失败关闭,不回退 Worker 口号)', async () => {
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const s = make({ translateEndpoint: () => undefined })
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assert.equal(await s.endpointFor('u1'), undefined)
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})
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test('T4 实例未运行 ⇒ undefined,且**不该**调翻译器(没有端口可翻)', async () => {
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let called = false
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const s = make({
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fetchImpl: fakeFetch({ running: false }),
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translateEndpoint: () => {
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called = true
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return undefined
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},
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})
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assert.equal(await s.endpointFor('u1'), undefined)
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assert.equal(called, false)
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})
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