ReactDOMHydrationDiff-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.
 *
 * @jest-environment ./scripts/jest/ReactDOMServerIntegrationEnvironment
 */

'use strict';

let React;
let ReactDOMClient;
let ReactDOMServer;
let act;

const util = require('util');
const realConsoleError = console.error;

function errorHandler() {
  // forward to console.error but don't fail the tests
}

describe('ReactDOMServerHydration', () => {
  let container;
  let ownerStacks;

  beforeEach(() => {
    jest.resetModules();
    React = require('react');
    ReactDOMClient = require('react-dom/client');
    ReactDOMServer = require('react-dom/server');
    act = React.act;

    window.addEventListener('error', errorHandler);
    ownerStacks = [];
    console.error = jest.fn(() => {
      const ownerStack = React.captureOwnerStack();
      if (typeof ownerStack === 'string') {
        ownerStacks.push(ownerStack === '' ? ' <empty>' : ownerStack);
      } else {
        ownerStacks.push(' ' + String(ownerStack));
      }
    });
    container = document.createElement('div');
    document.body.appendChild(container);
  });

  afterEach(() => {
    window.removeEventListener('error', errorHandler);
    document.body.removeChild(container);
    console.error = realConsoleError;
  });

  function normalizeCodeLocInfo(str) {
    return typeof str === 'string'
      ? str.replace(/\n +(?:at|in) ([\S]+)[^\n]*/g, function (m, name) {
          return '\n    in ' + name + ' (at **)';
        })
      : str;
// ... (1588 more lines)