import { createMemoryHistory } from 'history'; import React from 'react'; import { cleanup, render, getByTestId } from '@testing-library/react'; import MessagesList from './MessagesList'; describe('MessagesList', () => { afterEach(cleanup); const time = new Date('1 Jan 2019 GMT'); it('renders messages data', () => { const messages = [ { id: '1', content: 'foo', createdAt: time, }, { id: '2', content: 'bar', createdAt: time, }, ]; let message1, message2; { const { container, getAllByTestId, getByTestId } = render( ); const match = getAllByTestId('message-item'); message1 = match[0]; message2 = match[1]; } expect(getByTestId(message1, 'message-content')).toHaveTextContent('foo'); expect(getByTestId(message1, 'message-date')).toHaveTextContent('00:00'); expect(getByTestId(message2, 'message-content')).toHaveTextContent('bar'); expect(getByTestId(message2, 'message-date')).toHaveTextContent('00:00'); }); });