使用 React 和 Jest 解决基本测试问题

Trouble-shooting a basic test with React and Jest

我已经用 React 和 Jest 设置了一个基本测试。它似乎由于某种原因失败了。

import React from 'react';
import ReactDOM from 'react-dom';
import TestUtils from 'react-addons-test-utils';
// import App from '../src/client/app.jsx';

const App = (props) => (
  <div>Hello world</div>
);

it('App renders hello world', () => {
  const app1 = TestUtils.renderIntoDocument(<App />);
  const appNode = ReactDOM.findDOMNode(app1);
  console.log(app1, appNode);
  expect(appNode.textContent).toEqual('Hello world');
});

打印到控制台时,app1 和 appNode 均为 null。有帮助吗?

截图如下:

TestUtils and React Stateless Components:

the suggested solution is to wrap the component inside of another component such as a DIV.

const app1 = TestUtils.renderIntoDocument(<div><App /></div>); // this should work