import React from 'react' import { shallow } from 'enzyme' import Body from '../Body' import Tracks from '../Tracks' import Grid from '../Grid' const defaultProps = { time: {}, grid: [], tracks: [], } describe('', () => { it('renders ', () => { const wrapper = shallow() expect(wrapper.find(Tracks).exists()).toBe(true) }) it('renders if grid prop exists', () => { const wrapper = shallow() expect(wrapper.find(Grid).exists()).toBe(true) }) it('does not render if grid prop does not exist', () => { const props = { ...defaultProps, grid: undefined, } const wrapper = shallow() expect(wrapper.find(Grid).exists()).toBe(false) }) })