Jasmine：期望在异步函数中抛出错误

如何在异步函数中抛出错误

javascript
// 异步函数
function fetchData(url) {
  return new Promise((resolve, reject) => {
    setTimeout(() => {
      if (url === 'https://example.com/data') {
        resolve('Data fetched successfully');
      } else {
        reject(new Error('Failed to fetch data'));
      }
    }, 1000);
  });
}
// Jasmine测试用例
describe('fetchData', () => {
  it('should throw an error when URL is invalid', async () => {
    await expectAsync(fetchData('https://example.com/invalid')).toBeRejectedWithError('Failed to fetch data');
  });
  it('should resolve with data when URL is valid', async () => {
    await expectAsync(fetchData('https://example.com/data')).toBeResolvedTo('Data fetched successfully');
  });
});