const options = { q: 'pear' };
const res = nx.fanyiApiSign(options);
const url = `http://api.fanyi.baidu.com/api/trans/vip/translate?from=en&to=zh&${nx.param(res)}`;

fetch(url)
  .then((response) => response.json())
  .then((response) => {
    expect(response).toEqual({
      from: 'en',
      to: 'zh',
      trans_result: [{ src: 'pear', dst: '梨' }]
    });
  });