Function attempt

src/__tests__/test-utils/loopback.ts:85–95

()

  const deadline = Date.now() + timeoutMs;
  return new Promise((resolve, reject) => {
    const attempt = () => {
      const req = http.get(url, (res) => {
        res.resume();
        if ((res.statusCode ?? 500) < 500) {
          resolve();
          return;
        }
        retry();
      });
      req.on('error', retry);
    };
    const retry = () => {
      if (Date.now() >= deadline) {
        reject(new Error(`Timed out waiting for ${url}.`));