nexu-io--open-design
wehub-resource-sync
38 行
1.6 KiB
TypeScript
38 行
1.6 KiB
TypeScript
import type http from 'node:http';
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import { afterAll, beforeAll, describe, expect, it } from 'vitest';
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import { startServer } from '../src/server.js';
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// Regression guard for the HTTP keep-alive widening landed in #2557.
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// AGENTS.md → "Bug follow-up workflow" asks risk/high daemon bugfixes to
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// lead with a falsifiable spec. The bug being fixed is a 5s default
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// `server.keepAliveTimeout` that's tighter than the in-band SSE keepalive
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// cadence (`SSE_KEEPALIVE_INTERVAL_MS = 25_000`) — a future refactor of
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// the `listen` callback could silently restore the Node default and the
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// regression would not surface in any other test.
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describe('startServer HTTP keep-alive tuning', () => {
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let server: http.Server;
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beforeAll(async () => {
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const started = await startServer({ port: 0, returnServer: true }) as {
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url: string;
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server: http.Server;
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};
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server = started.server;
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});
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afterAll(() => new Promise<void>((resolve) => server.close(() => resolve())));
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it('widens keepAliveTimeout above the in-band SSE keepalive (25s)', () => {
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// SSE_KEEPALIVE_INTERVAL_MS is 25_000; the listener must exceed it
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// comfortably so kept-alive sockets used around an SSE stream survive
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// routine client pauses.
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expect(server.keepAliveTimeout).toBeGreaterThanOrEqual(60_000);
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});
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it('keeps headersTimeout above keepAliveTimeout per Node convention', () => {
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// Node docs: `headersTimeout` must exceed `keepAliveTimeout`, otherwise
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// a slow-loris client can stall request parsing indefinitely.
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expect(server.headersTimeout).toBeGreaterThan(server.keepAliveTimeout);
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});
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});
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