useEffectEvent-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
 * @jest-environment node
 */

'use strict';

import {useInsertionEffect} from 'react';

describe('useEffectEvent', () => {
  let React;
  let ReactNoop;
  let Scheduler;
  let act;
  let createContext;
  let useContext;
  let useState;
  let useEffectEvent;
  let useEffect;
  let useLayoutEffect;
  let useMemo;
  let waitForAll;
  let assertLog;
  let waitForThrow;
  let waitFor;

  beforeEach(() => {
    React = require('react');
    ReactNoop = require('react-noop-renderer');
    Scheduler = require('scheduler');

    act = require('internal-test-utils').act;
    createContext = React.createContext;
    useContext = React.useContext;
    useState = React.useState;
    useEffectEvent = React.useEffectEvent;
    useEffect = React.useEffect;
    useLayoutEffect = React.useLayoutEffect;
    useMemo = React.useMemo;

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

  function Text(props) {
    Scheduler.log(props.text);
    return <span prop={props.text} />;
  }

  it('memoizes basic case correctly', async () => {
    class IncrementButton extends React.PureComponent {
      increment = () => {
// ... (1276 more lines)