// https://reactjs.org/docs/test-renderer.html ? // import renderer from 'react-test-renderer' import * as React from 'react' import { render } from '@testing-library/react' import Reactris from './reactris' import { State } from './state' import * as Grid from './grid' test('renders', () => { // arrange const props = { score: 0, lines: 0, bucket: Grid.create(20, 4)} const reactris = new Reactris(props) // act reactris.keyDown('KeyJ') // assert expect(true).toBe(false) })