react_test_lib.md

react test library

简介

• create react app默认安装好了testing-library/react

    "@testing-library/react": "^11.1.0"

• 测试代码

import React from 'react' 
import { render } from '@testing-library/react'
import Button from './button'

test('our first react test case', () => {
  const wrapper = render(<Button>click</Button>)
  const element = wrapper.queryByText('click')
  expect(element).toBeTruthy()
})