ReactTestUtilsAct-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
 */

let React;
let ReactDOMClient;
let Scheduler;
let act;
let container;
let assertLog;
let assertConsoleErrorDev;

jest.useRealTimers();

global.IS_REACT_ACT_ENVIRONMENT = true;

function sleep(period) {
  return new Promise(resolve => {
    setTimeout(() => {
      resolve(true);
    }, period);
  });
}

describe('React.act()', () => {
  afterEach(() => {
    jest.restoreAllMocks();
  });

  let root = null;
  const renderConcurrent = (el, dom) => {
    root = ReactDOMClient.createRoot(dom);
    if (__DEV__) {
      act(() => root.render(el));
    } else {
      root.render(el);
    }
  };

  const unmountConcurrent = _dom => {
    if (__DEV__) {
      act(() => {
        if (root !== null) {
          root.unmount();
          root = null;
        }
      });
    } else {
      if (root !== null) {
        root.unmount();
        root = null;
      }
    }
  };

// ... (724 more lines)