React单元测试积累

[maitian0222]

需要依赖的模块

• import { render, fireEvent } from '@testing-library/react';
• import '@testing-library/jest-dom/extend-expect';
• import { act } from 'react-dom/test-utils';
• import renderer from 'react-test-renderer';
• @testing-library/jest-dom
• @testing-library/react
• @testing-library/react-hooks

积累

测试组件是否包含某个样式类

toHaveClass是否包含某个classname

jest 获取测试组件的根节点

import { render, fireEvent } from '@testing-library/react'; const { getByTestId，container } = render(组件); 获取到测试组件的根节点： container.firstChild

[maitian0222]