src/components/AttentionBox/index.test.js
import React from 'react'
import renderer from 'react-test-renderer'
import AttentionBox from '.'
jest.mock('react-dom')
describe('AttentionBox', () => {
it('renders <div>', () => {
const tree = renderer.create(<AttentionBox />).toJSON()
expect(tree.type).toBe('div')
})
})