Files
gstack/browse/test/terminal-agent-owner-watchdog.test.ts
T
Garry TanandClaude Fable 5 5c081a355a fix(test): kill the four worst fixed sleeps (300s/30s/30s/20s)
- watchdog.test: the 20s blind wait for one production parent-watchdog
  tick becomes BROWSE_PARENT_WATCHDOG_INTERVAL_MS=250 (new env knob in
  server.ts, NaN-safe, production default unchanged) + polls for the
  boot line and the tick's stay-alive log — strictly stronger (the old
  form never proved a tick observed the parent death). 24s → 3.6s.
- stop-dead-daemon / terminal-agent-owner-watchdog: the 300s/30s
  stand-in child lifetimes become stdin-EOF-bound — the child can never
  self-exit mid-test on a slow runner (spurious-failure class) and
  self-reaps instantly if the test dies (no 300s orphans). Node-compat
  stdin APIs (owner-watchdog runs on the Windows lane).
- browser-skill-commands: the sleeper fixture's 30s self-time becomes
  8s (no stdin pipe exists in runToFiles) — far above the 1s product
  timeout it must outlive, below the test ceiling, so a timeout-kill
  regression fails on clean assertions instead of an opaque bun
  timeout; added: stdout must NOT contain 'done'.

45/45 green across the four files + server tripwires.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-08-29 05:31:02 +00:00

82 lines
2.9 KiB
TypeScript

import { afterEach, describe, expect, test } from 'bun:test';
import * as fs from 'fs';
import * as os from 'os';
import * as path from 'path';
const AGENT_SCRIPT = path.join(import.meta.dir, '../src/terminal-agent.ts');
const spawned: any[] = [];
const tempDirs: string[] = [];
function isAlive(pid: number): boolean {
try {
process.kill(pid, 0);
return true;
} catch {
return false;
}
}
async function waitFor(predicate: () => boolean, timeoutMs = 5_000): Promise<boolean> {
const deadline = Date.now() + timeoutMs;
while (Date.now() < deadline) {
if (predicate()) return true;
await Bun.sleep(25);
}
return predicate();
}
afterEach(() => {
for (const proc of spawned.splice(0)) {
try { proc.kill?.('SIGKILL'); } catch {}
}
for (const dir of tempDirs.splice(0)) {
try { fs.rmSync(dir, { recursive: true, force: true }); } catch {}
}
});
describe('terminal-agent owner lifecycle', () => {
test('exits after its owning browse server process exits', async () => {
const stateDir = fs.mkdtempSync(path.join(os.tmpdir(), 'gstack-term-owner-'));
tempDirs.push(stateDir);
const stateFile = path.join(stateDir, 'browse.json');
fs.writeFileSync(stateFile, JSON.stringify({ token: 'test-token' }));
// process.execPath (the running bun) instead of `sleep`: coreutils are
// not guaranteed on a bare windows-latest runner, and this test is on the
// Windows CI curated list — the owner-orphan leak it pins is a Windows bug.
// The owner's lifetime is tied to this test process instead of a fixed
// 30s sleep: it blocks until its stdin (a pipe we hold open) hits EOF, so
// it is guaranteed alive until the SIGTERM below no matter how slow the
// runner is, and it reaps itself if the test process dies without running
// afterEach. Node-compatible stdin APIs, not Bun.stdin — Windows-portable.
const owner = Bun.spawn(
[process.execPath, '-e',
"process.stdin.resume(); const bye = () => process.exit(0); "
+ "process.stdin.on('end', bye); process.stdin.on('error', bye); process.stdin.on('close', bye);"],
{ stdio: ['pipe', 'ignore', 'ignore'] },
);
spawned.push(owner);
const agent = Bun.spawn(['bun', 'run', AGENT_SCRIPT], {
env: {
...process.env,
BROWSE_STATE_FILE: stateFile,
BROWSE_SERVER_PORT: '0',
BROWSE_OWNER_PID: String(owner.pid),
GSTACK_TERMINAL_OWNER_WATCHDOG_MS: '25',
},
stdio: ['ignore', 'ignore', 'ignore'],
});
spawned.push(agent);
expect(await waitFor(() => fs.existsSync(path.join(stateDir, 'terminal-agent-pid')))).toBe(true);
expect(isAlive(agent.pid)).toBe(true);
owner.kill('SIGTERM');
await owner.exited;
expect(await waitFor(() => !isAlive(agent.pid))).toBe(true);
expect(fs.existsSync(path.join(stateDir, 'terminal-agent-pid'))).toBe(false);
expect(fs.existsSync(path.join(stateDir, 'terminal-port'))).toBe(false);
});
});