import React from 'react' import { render } from 'react-testing-library' import Progress from './Progress' describe('Progress', () => { it('renders without crashing', () => { const { container } = render( ) expect(container.firstChild).toBeInTheDocument() }) it('renders completed state', () => { const { container } = render( ) expect(container.querySelector('li')).toHaveClass('completed') }) })