SchedulerProfiling-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
 */

/* eslint-disable no-for-of-loops/no-for-of-loops */

'use strict';

let Scheduler;
// let runWithPriority;
let ImmediatePriority;
let UserBlockingPriority;
let NormalPriority;
let LowPriority;
let IdlePriority;
let scheduleCallback;
let cancelCallback;
// let wrapCallback;
// let getCurrentPriorityLevel;
// let shouldYield;
let waitForAll;
let waitFor;
let waitForThrow;

function priorityLevelToString(priorityLevel) {
  switch (priorityLevel) {
    case ImmediatePriority:
      return 'Immediate';
    case UserBlockingPriority:
      return 'User-blocking';
    case NormalPriority:
      return 'Normal';
    case LowPriority:
      return 'Low';
    case IdlePriority:
      return 'Idle';
    default:
      return null;
  }
}

describe('Scheduler', () => {
  const {enableProfiling} = require('scheduler/src/SchedulerFeatureFlags');
  if (!enableProfiling) {
    // The tests in this suite only apply when profiling is on
    it('profiling APIs are not available', () => {
      Scheduler = require('scheduler');
      expect(Scheduler.unstable_Profiling).toBe(null);
    });
    return;
  }

  beforeEach(() => {
    jest.resetModules();
// ... (470 more lines)