ReactDOMServerLifecycles-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';

const ReactDOMServerIntegrationUtils = require('./utils/ReactDOMServerIntegrationTestUtils');

let React;
let ReactDOMServer;
let assertConsoleErrorDev;
let assertConsoleWarnDev;

function initModules() {
  // Reset warning cache.
  jest.resetModules();
  React = require('react');
  ReactDOMServer = require('react-dom/server');
  assertConsoleErrorDev = require('internal-test-utils').assertConsoleErrorDev;
  assertConsoleWarnDev = require('internal-test-utils').assertConsoleWarnDev;

  // Make them available to the helpers.
  return {
    ReactDOMServer,
  };
}

const {resetModules} = ReactDOMServerIntegrationUtils(initModules);

describe('ReactDOMServerLifecycles', () => {
  beforeEach(() => {
    resetModules();
  });

  it('should invoke the correct legacy lifecycle hooks', () => {
    const log = [];

    class Outer extends React.Component {
      UNSAFE_componentWillMount() {
        log.push('outer componentWillMount');
      }
      render() {
        log.push('outer render');
        return <Inner />;
      }
    }

    class Inner extends React.Component {
      UNSAFE_componentWillMount() {
        log.push('inner componentWillMount');
      }
      render() {
        log.push('inner render');
        return null;
      }
// ... (331 more lines)