546 lines
16 KiB
JavaScript
546 lines
16 KiB
JavaScript
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'use strict';
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Object.defineProperty(exports, '__esModule', {
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value: true
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});
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exports.default = void 0;
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function _util() {
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const data = require('util');
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_util = function () {
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return data;
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};
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return data;
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}
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function _jestMessageUtil() {
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const data = require('jest-message-util');
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_jestMessageUtil = function () {
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return data;
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};
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return data;
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}
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function _jestUtil() {
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const data = require('jest-util');
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_jestUtil = function () {
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return data;
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};
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return data;
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}
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/**
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* Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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/* eslint-disable local/prefer-spread-eventually */
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const MS_IN_A_YEAR = 31536000000;
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class FakeTimers {
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_cancelledTicks;
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_config;
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_disposed;
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_fakeTimerAPIs;
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_fakingTime = false;
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_global;
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_immediates;
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_maxLoops;
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_moduleMocker;
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_now;
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_ticks;
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_timerAPIs;
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_timers;
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_uuidCounter;
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_timerConfig;
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constructor({global, moduleMocker, timerConfig, config, maxLoops}) {
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this._global = global;
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this._timerConfig = timerConfig;
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this._config = config;
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this._maxLoops = maxLoops || 100000;
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this._uuidCounter = 1;
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this._moduleMocker = moduleMocker;
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// Store original timer APIs for future reference
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this._timerAPIs = {
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cancelAnimationFrame: global.cancelAnimationFrame,
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clearImmediate: global.clearImmediate,
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clearInterval: global.clearInterval,
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clearTimeout: global.clearTimeout,
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nextTick: global.process && global.process.nextTick,
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requestAnimationFrame: global.requestAnimationFrame,
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setImmediate: global.setImmediate,
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setInterval: global.setInterval,
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setTimeout: global.setTimeout
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};
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this._disposed = false;
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this.reset();
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}
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clearAllTimers() {
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this._immediates = [];
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this._timers.clear();
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}
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dispose() {
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this._disposed = true;
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this.clearAllTimers();
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}
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reset() {
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this._cancelledTicks = {};
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this._now = 0;
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this._ticks = [];
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this._immediates = [];
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this._timers = new Map();
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}
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now() {
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if (this._fakingTime) {
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return this._now;
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}
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return Date.now();
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}
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runAllTicks() {
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this._checkFakeTimers();
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// Only run a generous number of ticks and then bail.
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// This is just to help avoid recursive loops
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let i;
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for (i = 0; i < this._maxLoops; i++) {
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const tick = this._ticks.shift();
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if (tick === undefined) {
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break;
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}
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if (
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!Object.prototype.hasOwnProperty.call(this._cancelledTicks, tick.uuid)
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) {
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// Callback may throw, so update the map prior calling.
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this._cancelledTicks[tick.uuid] = true;
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tick.callback();
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}
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}
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if (i === this._maxLoops) {
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throw new Error(
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`Ran ${this._maxLoops} ticks, and there are still more! ` +
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"Assuming we've hit an infinite recursion and bailing out..."
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);
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}
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}
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runAllImmediates() {
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this._checkFakeTimers();
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// Only run a generous number of immediates and then bail.
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let i;
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for (i = 0; i < this._maxLoops; i++) {
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const immediate = this._immediates.shift();
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if (immediate === undefined) {
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break;
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}
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this._runImmediate(immediate);
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}
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if (i === this._maxLoops) {
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throw new Error(
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`Ran ${this._maxLoops} immediates, and there are still more! Assuming ` +
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"we've hit an infinite recursion and bailing out..."
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);
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}
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}
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_runImmediate(immediate) {
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try {
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immediate.callback();
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} finally {
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this._fakeClearImmediate(immediate.uuid);
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}
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}
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runAllTimers() {
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this._checkFakeTimers();
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this.runAllTicks();
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this.runAllImmediates();
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// Only run a generous number of timers and then bail.
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// This is just to help avoid recursive loops
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let i;
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for (i = 0; i < this._maxLoops; i++) {
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const nextTimerHandleAndExpiry = this._getNextTimerHandleAndExpiry();
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// If there are no more timer handles, stop!
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if (nextTimerHandleAndExpiry === null) {
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break;
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}
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const [nextTimerHandle, expiry] = nextTimerHandleAndExpiry;
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this._now = expiry;
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this._runTimerHandle(nextTimerHandle);
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// Some of the immediate calls could be enqueued
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// during the previous handling of the timers, we should
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// run them as well.
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if (this._immediates.length) {
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this.runAllImmediates();
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}
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if (this._ticks.length) {
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this.runAllTicks();
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}
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}
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if (i === this._maxLoops) {
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throw new Error(
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`Ran ${this._maxLoops} timers, and there are still more! ` +
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"Assuming we've hit an infinite recursion and bailing out..."
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);
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}
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}
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runOnlyPendingTimers() {
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// We need to hold the current shape of `this._timers` because existing
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// timers can add new ones to the map and hence would run more than necessary.
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// See https://github.com/facebook/jest/pull/4608 for details
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const timerEntries = Array.from(this._timers.entries());
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this._checkFakeTimers();
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this._immediates.forEach(this._runImmediate, this);
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timerEntries
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.sort(([, left], [, right]) => left.expiry - right.expiry)
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.forEach(([timerHandle, timer]) => {
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this._now = timer.expiry;
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this._runTimerHandle(timerHandle);
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});
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}
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advanceTimersToNextTimer(steps = 1) {
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if (steps < 1) {
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return;
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}
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const nextExpiry = Array.from(this._timers.values()).reduce(
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(minExpiry, timer) => {
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if (minExpiry === null || timer.expiry < minExpiry) return timer.expiry;
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return minExpiry;
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},
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null
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);
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if (nextExpiry !== null) {
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this.advanceTimersByTime(nextExpiry - this._now);
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this.advanceTimersToNextTimer(steps - 1);
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}
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}
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advanceTimersByTime(msToRun) {
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this._checkFakeTimers();
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// Only run a generous number of timers and then bail.
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// This is just to help avoid recursive loops
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let i;
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for (i = 0; i < this._maxLoops; i++) {
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const timerHandleAndExpiry = this._getNextTimerHandleAndExpiry();
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// If there are no more timer handles, stop!
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if (timerHandleAndExpiry === null) {
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break;
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}
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const [timerHandle, nextTimerExpiry] = timerHandleAndExpiry;
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if (this._now + msToRun < nextTimerExpiry) {
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// There are no timers between now and the target we're running to
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break;
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} else {
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msToRun -= nextTimerExpiry - this._now;
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this._now = nextTimerExpiry;
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this._runTimerHandle(timerHandle);
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}
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}
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// Advance the clock by whatever time we still have left to run
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this._now += msToRun;
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if (i === this._maxLoops) {
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throw new Error(
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`Ran ${this._maxLoops} timers, and there are still more! ` +
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"Assuming we've hit an infinite recursion and bailing out..."
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);
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}
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}
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runWithRealTimers(cb) {
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const prevClearImmediate = this._global.clearImmediate;
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const prevClearInterval = this._global.clearInterval;
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const prevClearTimeout = this._global.clearTimeout;
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const prevNextTick = this._global.process.nextTick;
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const prevSetImmediate = this._global.setImmediate;
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const prevSetInterval = this._global.setInterval;
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const prevSetTimeout = this._global.setTimeout;
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this.useRealTimers();
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let cbErr = null;
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let errThrown = false;
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try {
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cb();
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} catch (e) {
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errThrown = true;
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cbErr = e;
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}
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this._global.clearImmediate = prevClearImmediate;
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this._global.clearInterval = prevClearInterval;
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this._global.clearTimeout = prevClearTimeout;
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this._global.process.nextTick = prevNextTick;
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this._global.setImmediate = prevSetImmediate;
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this._global.setInterval = prevSetInterval;
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this._global.setTimeout = prevSetTimeout;
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if (errThrown) {
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throw cbErr;
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}
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}
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useRealTimers() {
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const global = this._global;
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if (typeof global.cancelAnimationFrame === 'function') {
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(0, _jestUtil().setGlobal)(
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global,
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'cancelAnimationFrame',
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this._timerAPIs.cancelAnimationFrame
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);
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}
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if (typeof global.clearImmediate === 'function') {
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(0, _jestUtil().setGlobal)(
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global,
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'clearImmediate',
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this._timerAPIs.clearImmediate
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);
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}
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(0, _jestUtil().setGlobal)(
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global,
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'clearInterval',
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this._timerAPIs.clearInterval
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);
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(0, _jestUtil().setGlobal)(
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global,
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'clearTimeout',
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this._timerAPIs.clearTimeout
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);
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if (typeof global.requestAnimationFrame === 'function') {
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(0, _jestUtil().setGlobal)(
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global,
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'requestAnimationFrame',
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this._timerAPIs.requestAnimationFrame
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);
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}
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if (typeof global.setImmediate === 'function') {
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(0, _jestUtil().setGlobal)(
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global,
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'setImmediate',
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this._timerAPIs.setImmediate
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);
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}
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(0, _jestUtil().setGlobal)(
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global,
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'setInterval',
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this._timerAPIs.setInterval
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);
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(0, _jestUtil().setGlobal)(
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global,
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'setTimeout',
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this._timerAPIs.setTimeout
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);
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global.process.nextTick = this._timerAPIs.nextTick;
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this._fakingTime = false;
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}
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useFakeTimers() {
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this._createMocks();
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const global = this._global;
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if (typeof global.cancelAnimationFrame === 'function') {
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(0, _jestUtil().setGlobal)(
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global,
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'cancelAnimationFrame',
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this._fakeTimerAPIs.cancelAnimationFrame
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);
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}
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if (typeof global.clearImmediate === 'function') {
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(0, _jestUtil().setGlobal)(
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global,
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'clearImmediate',
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this._fakeTimerAPIs.clearImmediate
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);
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}
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(0, _jestUtil().setGlobal)(
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global,
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'clearInterval',
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this._fakeTimerAPIs.clearInterval
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);
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(0, _jestUtil().setGlobal)(
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global,
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'clearTimeout',
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this._fakeTimerAPIs.clearTimeout
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);
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if (typeof global.requestAnimationFrame === 'function') {
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(0, _jestUtil().setGlobal)(
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global,
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'requestAnimationFrame',
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this._fakeTimerAPIs.requestAnimationFrame
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);
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}
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if (typeof global.setImmediate === 'function') {
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(0, _jestUtil().setGlobal)(
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global,
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'setImmediate',
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this._fakeTimerAPIs.setImmediate
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);
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}
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(0, _jestUtil().setGlobal)(
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global,
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'setInterval',
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this._fakeTimerAPIs.setInterval
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);
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(0, _jestUtil().setGlobal)(
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global,
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'setTimeout',
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this._fakeTimerAPIs.setTimeout
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);
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global.process.nextTick = this._fakeTimerAPIs.nextTick;
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this._fakingTime = true;
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}
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getTimerCount() {
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this._checkFakeTimers();
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return this._timers.size + this._immediates.length + this._ticks.length;
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}
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_checkFakeTimers() {
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if (!this._fakingTime) {
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this._global.console.warn(
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|
|
'A function to advance timers was called but the timers APIs are not mocked ' +
|
||
|
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'with fake timers. Call `jest.useFakeTimers({legacyFakeTimers: true})` ' +
|
||
|
|
'in this test file or enable fake timers for all tests by setting ' +
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|
|
"{'enableGlobally': true, 'legacyFakeTimers': true} in " +
|
||
|
|
`Jest configuration file.\nStack Trace:\n${(0,
|
||
|
|
_jestMessageUtil().formatStackTrace)(
|
||
|
|
new Error().stack,
|
||
|
|
this._config,
|
||
|
|
{
|
||
|
|
noStackTrace: false
|
||
|
|
}
|
||
|
|
)}`
|
||
|
|
);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
_createMocks() {
|
||
|
|
const fn = implementation => this._moduleMocker.fn(implementation);
|
||
|
|
const promisifiableFakeSetTimeout = fn(this._fakeSetTimeout.bind(this));
|
||
|
|
// @ts-expect-error: no index
|
||
|
|
promisifiableFakeSetTimeout[_util().promisify.custom] = (delay, arg) =>
|
||
|
|
new Promise(resolve => promisifiableFakeSetTimeout(resolve, delay, arg));
|
||
|
|
this._fakeTimerAPIs = {
|
||
|
|
cancelAnimationFrame: fn(this._fakeClearTimer.bind(this)),
|
||
|
|
clearImmediate: fn(this._fakeClearImmediate.bind(this)),
|
||
|
|
clearInterval: fn(this._fakeClearTimer.bind(this)),
|
||
|
|
clearTimeout: fn(this._fakeClearTimer.bind(this)),
|
||
|
|
nextTick: fn(this._fakeNextTick.bind(this)),
|
||
|
|
requestAnimationFrame: fn(this._fakeRequestAnimationFrame.bind(this)),
|
||
|
|
setImmediate: fn(this._fakeSetImmediate.bind(this)),
|
||
|
|
setInterval: fn(this._fakeSetInterval.bind(this)),
|
||
|
|
setTimeout: promisifiableFakeSetTimeout
|
||
|
|
};
|
||
|
|
}
|
||
|
|
_fakeClearTimer(timerRef) {
|
||
|
|
const uuid = this._timerConfig.refToId(timerRef);
|
||
|
|
if (uuid) {
|
||
|
|
this._timers.delete(String(uuid));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
_fakeClearImmediate(uuid) {
|
||
|
|
this._immediates = this._immediates.filter(
|
||
|
|
immediate => immediate.uuid !== uuid
|
||
|
|
);
|
||
|
|
}
|
||
|
|
_fakeNextTick(callback, ...args) {
|
||
|
|
if (this._disposed) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
const uuid = String(this._uuidCounter++);
|
||
|
|
this._ticks.push({
|
||
|
|
callback: () => callback.apply(null, args),
|
||
|
|
uuid
|
||
|
|
});
|
||
|
|
const cancelledTicks = this._cancelledTicks;
|
||
|
|
this._timerAPIs.nextTick(() => {
|
||
|
|
if (!Object.prototype.hasOwnProperty.call(cancelledTicks, uuid)) {
|
||
|
|
// Callback may throw, so update the map prior calling.
|
||
|
|
cancelledTicks[uuid] = true;
|
||
|
|
callback.apply(null, args);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
}
|
||
|
|
_fakeRequestAnimationFrame(callback) {
|
||
|
|
return this._fakeSetTimeout(() => {
|
||
|
|
// TODO: Use performance.now() once it's mocked
|
||
|
|
callback(this._now);
|
||
|
|
}, 1000 / 60);
|
||
|
|
}
|
||
|
|
_fakeSetImmediate(callback, ...args) {
|
||
|
|
if (this._disposed) {
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
const uuid = String(this._uuidCounter++);
|
||
|
|
this._immediates.push({
|
||
|
|
callback: () => callback.apply(null, args),
|
||
|
|
uuid
|
||
|
|
});
|
||
|
|
this._timerAPIs.setImmediate(() => {
|
||
|
|
if (!this._disposed) {
|
||
|
|
if (this._immediates.find(x => x.uuid === uuid)) {
|
||
|
|
try {
|
||
|
|
callback.apply(null, args);
|
||
|
|
} finally {
|
||
|
|
this._fakeClearImmediate(uuid);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
});
|
||
|
|
return uuid;
|
||
|
|
}
|
||
|
|
_fakeSetInterval(callback, intervalDelay, ...args) {
|
||
|
|
if (this._disposed) {
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
if (intervalDelay == null) {
|
||
|
|
intervalDelay = 0;
|
||
|
|
}
|
||
|
|
const uuid = this._uuidCounter++;
|
||
|
|
this._timers.set(String(uuid), {
|
||
|
|
callback: () => callback.apply(null, args),
|
||
|
|
expiry: this._now + intervalDelay,
|
||
|
|
interval: intervalDelay,
|
||
|
|
type: 'interval'
|
||
|
|
});
|
||
|
|
return this._timerConfig.idToRef(uuid);
|
||
|
|
}
|
||
|
|
_fakeSetTimeout(callback, delay, ...args) {
|
||
|
|
if (this._disposed) {
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
// eslint-disable-next-line no-bitwise
|
||
|
|
delay = Number(delay) | 0;
|
||
|
|
const uuid = this._uuidCounter++;
|
||
|
|
this._timers.set(String(uuid), {
|
||
|
|
callback: () => callback.apply(null, args),
|
||
|
|
expiry: this._now + delay,
|
||
|
|
interval: undefined,
|
||
|
|
type: 'timeout'
|
||
|
|
});
|
||
|
|
return this._timerConfig.idToRef(uuid);
|
||
|
|
}
|
||
|
|
_getNextTimerHandleAndExpiry() {
|
||
|
|
let nextTimerHandle = null;
|
||
|
|
let soonestTime = MS_IN_A_YEAR;
|
||
|
|
this._timers.forEach((timer, uuid) => {
|
||
|
|
if (timer.expiry < soonestTime) {
|
||
|
|
soonestTime = timer.expiry;
|
||
|
|
nextTimerHandle = uuid;
|
||
|
|
}
|
||
|
|
});
|
||
|
|
if (nextTimerHandle === null) {
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
return [nextTimerHandle, soonestTime];
|
||
|
|
}
|
||
|
|
_runTimerHandle(timerHandle) {
|
||
|
|
const timer = this._timers.get(timerHandle);
|
||
|
|
if (!timer) {
|
||
|
|
// Timer has been cleared - we'll hit this when a timer is cleared within
|
||
|
|
// another timer in runOnlyPendingTimers
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
switch (timer.type) {
|
||
|
|
case 'timeout':
|
||
|
|
this._timers.delete(timerHandle);
|
||
|
|
timer.callback();
|
||
|
|
break;
|
||
|
|
case 'interval':
|
||
|
|
timer.expiry = this._now + (timer.interval || 0);
|
||
|
|
timer.callback();
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
throw new Error(`Unexpected timer type: ${timer.type}`);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
exports.default = FakeTimers;
|