ReactDOMFragmentRefs-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 reactcore
 */

'use strict';

let React;
let ReactDOMClient;
let ReactDOM;
let createPortal;
let act;
let container;
let Fragment;
let Activity;
let mockIntersectionObserver;
let simulateIntersection;
let setClientRects;
let mockRangeClientRects;
let assertConsoleErrorDev;

function Wrapper({children}) {
  return children;
}

describe('FragmentRefs', () => {
  beforeEach(() => {
    jest.resetModules();
    React = require('react');
    Fragment = React.Fragment;
    Activity = React.Activity;
    ReactDOMClient = require('react-dom/client');
    ReactDOM = require('react-dom');
    createPortal = ReactDOM.createPortal;
    act = require('internal-test-utils').act;
    const IntersectionMocks = require('./utils/IntersectionMocks');
    mockIntersectionObserver = IntersectionMocks.mockIntersectionObserver;
    simulateIntersection = IntersectionMocks.simulateIntersection;
    setClientRects = IntersectionMocks.setClientRects;
    mockRangeClientRects = IntersectionMocks.mockRangeClientRects;
    assertConsoleErrorDev =
      require('internal-test-utils').assertConsoleErrorDev;

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

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

  // @gate enableFragmentRefs
  it('attaches a ref to Fragment', async () => {
    const fragmentRef = React.createRef();
    const root = ReactDOMClient.createRoot(container);
// ... (2537 more lines)