Function jestFakeTimersAreEnabled

src/pure.js:16–28

()

import {getConfig, configure} from './config'

function jestFakeTimersAreEnabled() {
  /* istanbul ignore else */
  if (typeof jest !== 'undefined' && jest !== null) {
    return (
      // legacy timers
      setTimeout._isMockFunction === true || // modern timers
      // eslint-disable-next-line prefer-object-has-own -- No Object.hasOwn in all target environments we support.
      Object.prototype.hasOwnProperty.call(setTimeout, 'clock')
    )
  } // istanbul ignore next

  return false
}

configureDTL({
  unstable_advanceTimersWrapper: cb => {