codeburn/tests/sharing/connect-timeout.test.ts
Resham Joshi 22d5fc1743
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perf(web): instant dashboard load, default to today, fast-fail offline peers (#573)
The web server is long-lived, so cache what the per-invocation CLI cannot:

- Cache the parsed local payload in-memory (single-flight, 180s TTL matched to
  the parser session cache, expired entries pruned on write). /api/usage and the
  local half of /api/devices now return from a Map hit after the first parse.
- Prewarm today at startup and inline that payload into index.html as a
  bootstrap, so the SPA paints today's numbers with no round-trip. Only the
  local device is embedded; '<' is escaped so a name cannot break the script
  tag; served no-store; the seeded view refetches at once so live peers appear.
- Default the web command and dashboard to today.
- Cap the peer connect phase at 3s. req.setTimeout does not abort a stalled TCP
  connect, so an offline paired device hung ~75s on the OS timeout; it now
  degrades to an unreachable row in ~3s. The cap clears on TCP connect, so the
  TLS handshake and the 65s pairing-approval wait are unaffected.

Measured: /api/usage 0.0007s warm (was ~0.22s), /api/devices ~3s with an offline
peer (was ~75s), first paint instant.
2026-06-29 04:21:36 +02:00

15 lines
688 B
TypeScript

import { describe, it, expect } from 'vitest'
import { generateIdentity } from '../../src/sharing/identity.js'
import { hello } from '../../src/sharing/client.js'
describe('peer connect timeout', () => {
it('fails fast when a peer is unreachable instead of riding the OS connect timeout', async () => {
const id = await generateIdentity('Test')
// RFC5737 TEST-NET-1 is reserved and black-holed: the SYN gets no answer,
// so without the connect-phase cap this would hang ~75s on macOS.
const start = Date.now()
await expect(hello({ identity: id, host: '192.0.2.1', port: 7777 })).rejects.toThrow()
expect(Date.now() - start).toBeLessThan(6000)
}, 15000)
})