/** * Copyright (c) Meta Platforms, Inc. and affiliates. * * This source code is licensed under the MIT license found in the * LICENSE file in the root directory of this source tree. * * @emails react-core * @jest-environment node */ 'use strict'; let act; let Activity; let React; let ReactServer; let ReactNoop; let ReactNoopFlightClient; let ReactNoopFlightServer; describe('ActivityReactServer', () => { beforeEach(() => { jest.resetModules(); jest.mock('react', () => require('react/react.react-server')); ReactServer = require('react'); Activity = ReactServer.Activity; ReactNoopFlightServer = require('react-noop-renderer/flight-server'); jest.resetModules(); __unmockReact(); React = require('react'); ReactNoopFlightClient = require('react-noop-renderer/flight-client'); ReactNoop = require('react-noop-renderer'); const InternalTestUtils = require('internal-test-utils'); act = InternalTestUtils.act; }); afterEach(() => { jest.restoreAllMocks(); }); it('can be rendered in React Server', async () => { function App() { return ReactServer.createElement( Activity, {mode: 'hidden'}, ReactServer.createElement('div', null, 'Hello, Dave!'), ); } const transport = ReactNoopFlightServer.render( ReactServer.createElement(App, null), ); await act(async () => { const app = await ReactNoopFlightClient.read(transport); ReactNoop.render(app); }); expect(ReactNoop).toMatchRenderedOutput(