ReactProfilerDevToolsIntegration-test.internal.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';

describe('ReactProfiler DevTools integration', () => {
  let React;
  let ReactFeatureFlags;
  let ReactTestRenderer;
  let Scheduler;
  let AdvanceTime;
  let hook;
  let waitForAll;
  let waitFor;
  let act;

  beforeEach(() => {
    global.__REACT_DEVTOOLS_GLOBAL_HOOK__ = hook = {
      inject: () => {},
      onCommitFiberRoot: jest.fn((rendererId, root) => {}),
      onCommitFiberUnmount: () => {},
      supportsFiber: true,
    };

    jest.resetModules();

    ReactFeatureFlags = require('shared/ReactFeatureFlags');
    ReactFeatureFlags.enableProfilerTimer = true;
    Scheduler = require('scheduler');
    React = require('react');
    ReactTestRenderer = require('react-test-renderer');

    const InternalTestUtils = require('internal-test-utils');
    waitForAll = InternalTestUtils.waitForAll;
    waitFor = InternalTestUtils.waitFor;
    act = InternalTestUtils.act;

    AdvanceTime = class extends React.Component {
      static defaultProps = {
        byAmount: 10,
        shouldComponentUpdate: true,
      };
      shouldComponentUpdate(nextProps) {
        return nextProps.shouldComponentUpdate;
      }
      render() {
        // Simulate time passing when this component is rendered
        Scheduler.unstable_advanceTime(this.props.byAmount);
        return this.props.children || null;
      }
    };
  });

// ... (139 more lines)