ReactSuspenseEffectsSemanticsDOM-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';

let React;
let ReactDOM;
let ReactDOMClient;
let Scheduler;
let act;
let container;
let waitForAll;
let assertLog;
let fakeModuleCache;

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

    React = require('react');
    ReactDOM = require('react-dom');
    ReactDOMClient = require('react-dom/client');
    Scheduler = require('scheduler');
    act = require('internal-test-utils').act;

    const InternalTestUtils = require('internal-test-utils');
    waitForAll = InternalTestUtils.waitForAll;
    assertLog = InternalTestUtils.assertLog;

    container = document.createElement('div');
    document.body.appendChild(container);

    fakeModuleCache = new Map();
  });

  afterEach(() => {
    document.body.removeChild(container);
  });

  async function fakeImport(Component) {
    const record = fakeModuleCache.get(Component);
    if (record === undefined) {
      const newRecord = {
        status: 'pending',
        value: {default: Component},
        pings: [],
        then(ping) {
          switch (newRecord.status) {
            case 'pending': {
              newRecord.pings.push(ping);
              return;
            }
            case 'resolved': {
              ping(newRecord.value);
// ... (519 more lines)