@cainiaofe/cn-ui-m/es/components/cn-download/__tests__/index.test.js

## 在线文档

import React from 'react';
import { render, screen } from '@testing-library/react';
import { CnDownload } from '../index';
describe('CnDownload 组件测试', function () {
    test('渲染测试', function () {
        render(React.createElement(CnDownload, null));
        var element = screen.getByRole('button');
        expect(element).toHaveClass('cn-ui-m-button');
    });
});