test/pthread/test_pthread_unhandledrejection.post.js

if (!ENVIRONMENT_IS_PTHREAD) {
  if (ENVIRONMENT_IS_NODE) {
    process.on('error', (e) => {
      if (e === 'rejected!') {
        console.log('passed');
      }
    });
  } else {
    addEventListener('error', (e) => {
      if (e.message === 'Uncaught rejected!') {
        console.log('passed');
      }
    });
  }
}