ReactProfiler-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';

let React;
let ReactFeatureFlags;
let ReactNoop;
let Scheduler;
let act;
let AdvanceTime;
let assertLog;
let waitFor;
let waitForAll;
let waitForThrow;

function loadModules({
  enableProfilerTimer = true,
  enableProfilerCommitHooks = true,
  enableProfilerNestedUpdatePhase = true,
} = {}) {
  ReactFeatureFlags = require('shared/ReactFeatureFlags');

  ReactFeatureFlags.enableProfilerTimer = enableProfilerTimer;
  ReactFeatureFlags.enableProfilerCommitHooks = enableProfilerCommitHooks;
  ReactFeatureFlags.enableProfilerNestedUpdatePhase =
    enableProfilerNestedUpdatePhase;

  React = require('react');
  Scheduler = require('scheduler');
  ReactNoop = require('react-noop-renderer');
  const InternalTestUtils = require('internal-test-utils');
  act = InternalTestUtils.act;
  assertLog = InternalTestUtils.assertLog;
  waitFor = InternalTestUtils.waitFor;
  waitForAll = InternalTestUtils.waitForAll;
  waitForThrow = InternalTestUtils.waitForThrow;

  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;
    }
  };
}
// ... (2208 more lines)