Function withTimeout

example/tests/window_message_test.js:52–58

(promise, label, ms = 10000)

  }

  function withTimeout(promise, label, ms = 10000) {
    let timer = null;
    const timeout = new Promise((_, reject) => {
      timer = setTimeout(() => reject(new Error(`${label} timed out after ${ms}ms`)), ms);
    });
    return Promise.race([promise, timeout]).finally(() => clearTimeout(timer));
  }

  async function test(name, fn) {
    results.total++;