async () => {

const rootDir = createTempDir("openclaw-tsdown-timeout-");

const childPidPath = path.join(rootDir, "child.pid");

const timeoutMs = 1_000;

let childPid = 0;

const childScript = "process.on('SIGTERM', () => {}); setInterval(() => {}, 1000);";

const parentScript = [

env: {

...process.env,

OPENCLAW_TSDOWN_HEARTBEAT_MS: "0",

OPENCLAW_TSDOWN_TIMEOUT_MS: "50",

OPENCLAW_TSDOWN_TIMEOUT_MS: String(timeoutMs),

},

},

);

await waitForFile(childPidPath, 2_000);

await waitForFile(childPidPath, timeoutMs);

childPid = Number.parseInt(fs.readFileSync(childPidPath, "utf8"), 10);

expect(isProcessAlive(childPid)).toBe(true);

const result = await runPromise;