ReactDOMFizzServerBrowser-test.js — react Source File

Source Code

/**
 * 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
 */

'use strict';

import {patchMessageChannel} from '../../../../scripts/jest/patchMessageChannel';

// Polyfills for test environment
global.ReadableStream =
  require('web-streams-polyfill/ponyfill/es6').ReadableStream;
global.TextEncoder = require('util').TextEncoder;

let React;
let ReactDOMFizzServer;
let Suspense;
let serverAct;

describe('ReactDOMFizzServerBrowser', () => {
  beforeEach(() => {
    jest.resetModules();

    patchMessageChannel();
    serverAct = require('internal-test-utils').serverAct;

    React = require('react');
    ReactDOMFizzServer = require('react-dom/server.browser');
    Suspense = React.Suspense;
  });

  const theError = new Error('This is an error');
  function Throw() {
    throw theError;
  }
  const theInfinitePromise = new Promise(() => {});
  function InfiniteSuspend() {
    throw theInfinitePromise;
  }

  async function readResult(stream) {
    const reader = stream.getReader();
    let result = '';
    while (true) {
      const {done, value} = await reader.read();
      if (done) {
        return result;
      }
      result += Buffer.from(value).toString('utf8');
    }
  }

  it('should call renderToReadableStream', async () => {
    const stream = await serverAct(() =>
      ReactDOMFizzServer.renderToReadableStream(<div>hello world</div>),
    );
// ... (495 more lines)