});

}

function requireFirstMockCall<T>(mock: { mock: { calls: T[][] } }, label: string): T[] {

const call = mock.mock.calls.at(0);

if (!call) {

throw new Error(`expected ${label} call`);

}

return call;

}

async function runTemplatedHeartbeat(params: { responsePrefix: string; replyText: string }) {

return withTempTelegramHeartbeatSandbox(async ({ tmpDir, storePath, replySpy }) => {

const cfg = createTelegramHeartbeatConfig({

});

expect(sendTelegram).toHaveBeenCalledTimes(1);

const [target, message, options] = sendTelegram.mock.calls[0] ?? [];

const [target, message, options] = requireFirstMockCall(sendTelegram, "telegram send");

expect(target).toBe(TELEGRAM_GROUP);

expect(message).toBe("[openai-codex/gpt-5.4|think:high] Heartbeat alert");

expect(typeof options).toBe("object");