我有helper.js具有功能

async function getLink() {
  try {
    const message = await authorize(content);
    const link = message.match(/href=\"(.*?)\"/i);
    return link[1];
  }
  catch(error) {
    console.log('Error loading:',+error);
    throw(error);
  }
}
module.exports.getLink = getLink;

执行测试后,我想在testcafe脚本中使用此功能

在test.spec.js中
import { Selector } from 'testcafe';
let link = '';
fixture My fixture
.page `https://devexpress.github.io/testcafe/example/`;

 test('test1', async t => {

// do something with clientWidth
});
test('test2', async t => {
  // use the getLink function here from the helper.js to get the string value
  mailer.getLink().then(res=>{
    link = res;
  })
  t.navigateTo(link)
});

如何解决这个问题?

我尝试使用clientFunction但由于_ref is not defined出现错误,代码如下
const validationLink = ClientFunction(() => {
  return getLink();
}, { dependencies: { getLink } });
let link = await validationLink();

最佳答案

如果getLink方法必须读取DOM中的某些内容(超出Selector的范围)或必须在浏览器中计算出一些特殊的内容,则必须创建一个类似于以下内容的clientFunction(在clientFunction内部创建所有代码(没有导入的代码)) ):

const getLink = ClientFunction((selector) => {
    return new Promise( (resolve) => {
        const element = selector();
        // check, in developper tools, what are the available properties in element
        console.log("element:", element);
        // code omitted for brevity that reads data from element and does special computation from it
        // build the result to be returned
        const result = 'the computed link';
        resolve(result);
    });
});

test('test2', async t => {
  const linkSelector = Selector('css selector');
  const link = await getLink(inputSelector);
  await t.navigateTo(link);
});

如果getLink方法不需要从DOM中读取特殊内容,则无需创建clientFunction。您只需要创建一个辅助方法并将其导入(如@AlexSkorkin所建议):
test('test2', async t => {
  const link = await mailer.getLink();
  await t.navigateTo(link)
});

注意,必须等待t.navigate()和mailer.getLink()。

09-27 04:15