| 'use strict'; |
| /** |
| * @license Angular v12.0.0-next.0 |
| * (c) 2010-2020 Google LLC. https://angular.io/ |
| * License: MIT |
| */ |
| /** |
| * @license |
| * Copyright Google LLC All Rights Reserved. |
| * |
| * Use of this source code is governed by an MIT-style license that can be |
| * found in the LICENSE file at https://angular.io/license |
| */ |
| (function (global) { |
| const OriginalDate = global.Date; |
| // Since when we compile this file to `es2015`, and if we define |
| // this `FakeDate` as `class FakeDate`, and then set `FakeDate.prototype` |
| // there will be an error which is `Cannot assign to read only property 'prototype'` |
| // so we need to use function implementation here. |
| function FakeDate() { |
| if (arguments.length === 0) { |
| const d = new OriginalDate(); |
| d.setTime(FakeDate.now()); |
| return d; |
| } |
| else { |
| const args = Array.prototype.slice.call(arguments); |
| return new OriginalDate(...args); |
| } |
| } |
| FakeDate.now = function () { |
| const fakeAsyncTestZoneSpec = Zone.current.get('FakeAsyncTestZoneSpec'); |
| if (fakeAsyncTestZoneSpec) { |
| return fakeAsyncTestZoneSpec.getFakeSystemTime(); |
| } |
| return OriginalDate.now.apply(this, arguments); |
| }; |
| FakeDate.UTC = OriginalDate.UTC; |
| FakeDate.parse = OriginalDate.parse; |
| // keep a reference for zone patched timer function |
| const timers = { |
| setTimeout: global.setTimeout, |
| setInterval: global.setInterval, |
| clearTimeout: global.clearTimeout, |
| clearInterval: global.clearInterval |
| }; |
| class Scheduler { |
| constructor() { |
| // Scheduler queue with the tuple of end time and callback function - sorted by end time. |
| this._schedulerQueue = []; |
| // Current simulated time in millis. |
| this._currentTickTime = 0; |
| // Current fake system base time in millis. |
| this._currentFakeBaseSystemTime = OriginalDate.now(); |
| // track requeuePeriodicTimer |
| this._currentTickRequeuePeriodicEntries = []; |
| } |
| getCurrentTickTime() { |
| return this._currentTickTime; |
| } |
| getFakeSystemTime() { |
| return this._currentFakeBaseSystemTime + this._currentTickTime; |
| } |
| setFakeBaseSystemTime(fakeBaseSystemTime) { |
| this._currentFakeBaseSystemTime = fakeBaseSystemTime; |
| } |
| getRealSystemTime() { |
| return OriginalDate.now(); |
| } |
| scheduleFunction(cb, delay, options) { |
| options = Object.assign({ |
| args: [], |
| isPeriodic: false, |
| isRequestAnimationFrame: false, |
| id: -1, |
| isRequeuePeriodic: false |
| }, options); |
| let currentId = options.id < 0 ? Scheduler.nextId++ : options.id; |
| let endTime = this._currentTickTime + delay; |
| // Insert so that scheduler queue remains sorted by end time. |
| let newEntry = { |
| endTime: endTime, |
| id: currentId, |
| func: cb, |
| args: options.args, |
| delay: delay, |
| isPeriodic: options.isPeriodic, |
| isRequestAnimationFrame: options.isRequestAnimationFrame |
| }; |
| if (options.isRequeuePeriodic) { |
| this._currentTickRequeuePeriodicEntries.push(newEntry); |
| } |
| let i = 0; |
| for (; i < this._schedulerQueue.length; i++) { |
| let currentEntry = this._schedulerQueue[i]; |
| if (newEntry.endTime < currentEntry.endTime) { |
| break; |
| } |
| } |
| this._schedulerQueue.splice(i, 0, newEntry); |
| return currentId; |
| } |
| removeScheduledFunctionWithId(id) { |
| for (let i = 0; i < this._schedulerQueue.length; i++) { |
| if (this._schedulerQueue[i].id == id) { |
| this._schedulerQueue.splice(i, 1); |
| break; |
| } |
| } |
| } |
| removeAll() { |
| this._schedulerQueue = []; |
| } |
| getTimerCount() { |
| return this._schedulerQueue.length; |
| } |
| tickToNext(step = 1, doTick, tickOptions) { |
| if (this._schedulerQueue.length < step) { |
| return; |
| } |
| // Find the last task currently queued in the scheduler queue and tick |
| // till that time. |
| const startTime = this._currentTickTime; |
| const targetTask = this._schedulerQueue[step - 1]; |
| this.tick(targetTask.endTime - startTime, doTick, tickOptions); |
| } |
| tick(millis = 0, doTick, tickOptions) { |
| let finalTime = this._currentTickTime + millis; |
| let lastCurrentTime = 0; |
| tickOptions = Object.assign({ processNewMacroTasksSynchronously: true }, tickOptions); |
| // we need to copy the schedulerQueue so nested timeout |
| // will not be wrongly called in the current tick |
| // https://github.com/angular/angular/issues/33799 |
| const schedulerQueue = tickOptions.processNewMacroTasksSynchronously ? |
| this._schedulerQueue : |
| this._schedulerQueue.slice(); |
| if (schedulerQueue.length === 0 && doTick) { |
| doTick(millis); |
| return; |
| } |
| while (schedulerQueue.length > 0) { |
| // clear requeueEntries before each loop |
| this._currentTickRequeuePeriodicEntries = []; |
| let current = schedulerQueue[0]; |
| if (finalTime < current.endTime) { |
| // Done processing the queue since it's sorted by endTime. |
| break; |
| } |
| else { |
| // Time to run scheduled function. Remove it from the head of queue. |
| let current = schedulerQueue.shift(); |
| if (!tickOptions.processNewMacroTasksSynchronously) { |
| const idx = this._schedulerQueue.indexOf(current); |
| if (idx >= 0) { |
| this._schedulerQueue.splice(idx, 1); |
| } |
| } |
| lastCurrentTime = this._currentTickTime; |
| this._currentTickTime = current.endTime; |
| if (doTick) { |
| doTick(this._currentTickTime - lastCurrentTime); |
| } |
| let retval = current.func.apply(global, current.isRequestAnimationFrame ? [this._currentTickTime] : current.args); |
| if (!retval) { |
| // Uncaught exception in the current scheduled function. Stop processing the queue. |
| break; |
| } |
| // check is there any requeue periodic entry is added in |
| // current loop, if there is, we need to add to current loop |
| if (!tickOptions.processNewMacroTasksSynchronously) { |
| this._currentTickRequeuePeriodicEntries.forEach(newEntry => { |
| let i = 0; |
| for (; i < schedulerQueue.length; i++) { |
| const currentEntry = schedulerQueue[i]; |
| if (newEntry.endTime < currentEntry.endTime) { |
| break; |
| } |
| } |
| schedulerQueue.splice(i, 0, newEntry); |
| }); |
| } |
| } |
| } |
| lastCurrentTime = this._currentTickTime; |
| this._currentTickTime = finalTime; |
| if (doTick) { |
| doTick(this._currentTickTime - lastCurrentTime); |
| } |
| } |
| flushOnlyPendingTimers(doTick) { |
| if (this._schedulerQueue.length === 0) { |
| return 0; |
| } |
| // Find the last task currently queued in the scheduler queue and tick |
| // till that time. |
| const startTime = this._currentTickTime; |
| const lastTask = this._schedulerQueue[this._schedulerQueue.length - 1]; |
| this.tick(lastTask.endTime - startTime, doTick, { processNewMacroTasksSynchronously: false }); |
| return this._currentTickTime - startTime; |
| } |
| flush(limit = 20, flushPeriodic = false, doTick) { |
| if (flushPeriodic) { |
| return this.flushPeriodic(doTick); |
| } |
| else { |
| return this.flushNonPeriodic(limit, doTick); |
| } |
| } |
| flushPeriodic(doTick) { |
| if (this._schedulerQueue.length === 0) { |
| return 0; |
| } |
| // Find the last task currently queued in the scheduler queue and tick |
| // till that time. |
| const startTime = this._currentTickTime; |
| const lastTask = this._schedulerQueue[this._schedulerQueue.length - 1]; |
| this.tick(lastTask.endTime - startTime, doTick); |
| return this._currentTickTime - startTime; |
| } |
| flushNonPeriodic(limit, doTick) { |
| const startTime = this._currentTickTime; |
| let lastCurrentTime = 0; |
| let count = 0; |
| while (this._schedulerQueue.length > 0) { |
| count++; |
| if (count > limit) { |
| throw new Error('flush failed after reaching the limit of ' + limit + |
| ' tasks. Does your code use a polling timeout?'); |
| } |
| // flush only non-periodic timers. |
| // If the only remaining tasks are periodic(or requestAnimationFrame), finish flushing. |
| if (this._schedulerQueue.filter(task => !task.isPeriodic && !task.isRequestAnimationFrame) |
| .length === 0) { |
| break; |
| } |
| const current = this._schedulerQueue.shift(); |
| lastCurrentTime = this._currentTickTime; |
| this._currentTickTime = current.endTime; |
| if (doTick) { |
| // Update any secondary schedulers like Jasmine mock Date. |
| doTick(this._currentTickTime - lastCurrentTime); |
| } |
| const retval = current.func.apply(global, current.args); |
| if (!retval) { |
| // Uncaught exception in the current scheduled function. Stop processing the queue. |
| break; |
| } |
| } |
| return this._currentTickTime - startTime; |
| } |
| } |
| // Next scheduler id. |
| Scheduler.nextId = 1; |
| class FakeAsyncTestZoneSpec { |
| constructor(namePrefix, trackPendingRequestAnimationFrame = false, macroTaskOptions) { |
| this.trackPendingRequestAnimationFrame = trackPendingRequestAnimationFrame; |
| this.macroTaskOptions = macroTaskOptions; |
| this._scheduler = new Scheduler(); |
| this._microtasks = []; |
| this._lastError = null; |
| this._uncaughtPromiseErrors = Promise[Zone.__symbol__('uncaughtPromiseErrors')]; |
| this.pendingPeriodicTimers = []; |
| this.pendingTimers = []; |
| this.patchDateLocked = false; |
| this.properties = { 'FakeAsyncTestZoneSpec': this }; |
| this.name = 'fakeAsyncTestZone for ' + namePrefix; |
| // in case user can't access the construction of FakeAsyncTestSpec |
| // user can also define macroTaskOptions by define a global variable. |
| if (!this.macroTaskOptions) { |
| this.macroTaskOptions = global[Zone.__symbol__('FakeAsyncTestMacroTask')]; |
| } |
| } |
| static assertInZone() { |
| if (Zone.current.get('FakeAsyncTestZoneSpec') == null) { |
| throw new Error('The code should be running in the fakeAsync zone to call this function'); |
| } |
| } |
| _fnAndFlush(fn, completers) { |
| return (...args) => { |
| fn.apply(global, args); |
| if (this._lastError === null) { // Success |
| if (completers.onSuccess != null) { |
| completers.onSuccess.apply(global); |
| } |
| // Flush microtasks only on success. |
| this.flushMicrotasks(); |
| } |
| else { // Failure |
| if (completers.onError != null) { |
| completers.onError.apply(global); |
| } |
| } |
| // Return true if there were no errors, false otherwise. |
| return this._lastError === null; |
| }; |
| } |
| static _removeTimer(timers, id) { |
| let index = timers.indexOf(id); |
| if (index > -1) { |
| timers.splice(index, 1); |
| } |
| } |
| _dequeueTimer(id) { |
| return () => { |
| FakeAsyncTestZoneSpec._removeTimer(this.pendingTimers, id); |
| }; |
| } |
| _requeuePeriodicTimer(fn, interval, args, id) { |
| return () => { |
| // Requeue the timer callback if it's not been canceled. |
| if (this.pendingPeriodicTimers.indexOf(id) !== -1) { |
| this._scheduler.scheduleFunction(fn, interval, { args, isPeriodic: true, id, isRequeuePeriodic: true }); |
| } |
| }; |
| } |
| _dequeuePeriodicTimer(id) { |
| return () => { |
| FakeAsyncTestZoneSpec._removeTimer(this.pendingPeriodicTimers, id); |
| }; |
| } |
| _setTimeout(fn, delay, args, isTimer = true) { |
| let removeTimerFn = this._dequeueTimer(Scheduler.nextId); |
| // Queue the callback and dequeue the timer on success and error. |
| let cb = this._fnAndFlush(fn, { onSuccess: removeTimerFn, onError: removeTimerFn }); |
| let id = this._scheduler.scheduleFunction(cb, delay, { args, isRequestAnimationFrame: !isTimer }); |
| if (isTimer) { |
| this.pendingTimers.push(id); |
| } |
| return id; |
| } |
| _clearTimeout(id) { |
| FakeAsyncTestZoneSpec._removeTimer(this.pendingTimers, id); |
| this._scheduler.removeScheduledFunctionWithId(id); |
| } |
| _setInterval(fn, interval, args) { |
| let id = Scheduler.nextId; |
| let completers = { onSuccess: null, onError: this._dequeuePeriodicTimer(id) }; |
| let cb = this._fnAndFlush(fn, completers); |
| // Use the callback created above to requeue on success. |
| completers.onSuccess = this._requeuePeriodicTimer(cb, interval, args, id); |
| // Queue the callback and dequeue the periodic timer only on error. |
| this._scheduler.scheduleFunction(cb, interval, { args, isPeriodic: true }); |
| this.pendingPeriodicTimers.push(id); |
| return id; |
| } |
| _clearInterval(id) { |
| FakeAsyncTestZoneSpec._removeTimer(this.pendingPeriodicTimers, id); |
| this._scheduler.removeScheduledFunctionWithId(id); |
| } |
| _resetLastErrorAndThrow() { |
| let error = this._lastError || this._uncaughtPromiseErrors[0]; |
| this._uncaughtPromiseErrors.length = 0; |
| this._lastError = null; |
| throw error; |
| } |
| getCurrentTickTime() { |
| return this._scheduler.getCurrentTickTime(); |
| } |
| getFakeSystemTime() { |
| return this._scheduler.getFakeSystemTime(); |
| } |
| setFakeBaseSystemTime(realTime) { |
| this._scheduler.setFakeBaseSystemTime(realTime); |
| } |
| getRealSystemTime() { |
| return this._scheduler.getRealSystemTime(); |
| } |
| static patchDate() { |
| if (!!global[Zone.__symbol__('disableDatePatching')]) { |
| // we don't want to patch global Date |
| // because in some case, global Date |
| // is already being patched, we need to provide |
| // an option to let user still use their |
| // own version of Date. |
| return; |
| } |
| if (global['Date'] === FakeDate) { |
| // already patched |
| return; |
| } |
| global['Date'] = FakeDate; |
| FakeDate.prototype = OriginalDate.prototype; |
| // try check and reset timers |
| // because jasmine.clock().install() may |
| // have replaced the global timer |
| FakeAsyncTestZoneSpec.checkTimerPatch(); |
| } |
| static resetDate() { |
| if (global['Date'] === FakeDate) { |
| global['Date'] = OriginalDate; |
| } |
| } |
| static checkTimerPatch() { |
| if (global.setTimeout !== timers.setTimeout) { |
| global.setTimeout = timers.setTimeout; |
| global.clearTimeout = timers.clearTimeout; |
| } |
| if (global.setInterval !== timers.setInterval) { |
| global.setInterval = timers.setInterval; |
| global.clearInterval = timers.clearInterval; |
| } |
| } |
| lockDatePatch() { |
| this.patchDateLocked = true; |
| FakeAsyncTestZoneSpec.patchDate(); |
| } |
| unlockDatePatch() { |
| this.patchDateLocked = false; |
| FakeAsyncTestZoneSpec.resetDate(); |
| } |
| tickToNext(steps = 1, doTick, tickOptions = { processNewMacroTasksSynchronously: true }) { |
| if (steps <= 0) { |
| return; |
| } |
| FakeAsyncTestZoneSpec.assertInZone(); |
| this.flushMicrotasks(); |
| this._scheduler.tickToNext(steps, doTick, tickOptions); |
| if (this._lastError !== null) { |
| this._resetLastErrorAndThrow(); |
| } |
| } |
| tick(millis = 0, doTick, tickOptions = { processNewMacroTasksSynchronously: true }) { |
| FakeAsyncTestZoneSpec.assertInZone(); |
| this.flushMicrotasks(); |
| this._scheduler.tick(millis, doTick, tickOptions); |
| if (this._lastError !== null) { |
| this._resetLastErrorAndThrow(); |
| } |
| } |
| flushMicrotasks() { |
| FakeAsyncTestZoneSpec.assertInZone(); |
| const flushErrors = () => { |
| if (this._lastError !== null || this._uncaughtPromiseErrors.length) { |
| // If there is an error stop processing the microtask queue and rethrow the error. |
| this._resetLastErrorAndThrow(); |
| } |
| }; |
| while (this._microtasks.length > 0) { |
| let microtask = this._microtasks.shift(); |
| microtask.func.apply(microtask.target, microtask.args); |
| } |
| flushErrors(); |
| } |
| flush(limit, flushPeriodic, doTick) { |
| FakeAsyncTestZoneSpec.assertInZone(); |
| this.flushMicrotasks(); |
| const elapsed = this._scheduler.flush(limit, flushPeriodic, doTick); |
| if (this._lastError !== null) { |
| this._resetLastErrorAndThrow(); |
| } |
| return elapsed; |
| } |
| flushOnlyPendingTimers(doTick) { |
| FakeAsyncTestZoneSpec.assertInZone(); |
| this.flushMicrotasks(); |
| const elapsed = this._scheduler.flushOnlyPendingTimers(doTick); |
| if (this._lastError !== null) { |
| this._resetLastErrorAndThrow(); |
| } |
| return elapsed; |
| } |
| removeAllTimers() { |
| FakeAsyncTestZoneSpec.assertInZone(); |
| this._scheduler.removeAll(); |
| this.pendingPeriodicTimers = []; |
| this.pendingTimers = []; |
| } |
| getTimerCount() { |
| return this._scheduler.getTimerCount() + this._microtasks.length; |
| } |
| onScheduleTask(delegate, current, target, task) { |
| switch (task.type) { |
| case 'microTask': |
| let args = task.data && task.data.args; |
| // should pass additional arguments to callback if have any |
| // currently we know process.nextTick will have such additional |
| // arguments |
| let additionalArgs; |
| if (args) { |
| let callbackIndex = task.data.cbIdx; |
| if (typeof args.length === 'number' && args.length > callbackIndex + 1) { |
| additionalArgs = Array.prototype.slice.call(args, callbackIndex + 1); |
| } |
| } |
| this._microtasks.push({ |
| func: task.invoke, |
| args: additionalArgs, |
| target: task.data && task.data.target |
| }); |
| break; |
| case 'macroTask': |
| switch (task.source) { |
| case 'setTimeout': |
| task.data['handleId'] = this._setTimeout(task.invoke, task.data['delay'], Array.prototype.slice.call(task.data['args'], 2)); |
| break; |
| case 'setImmediate': |
| task.data['handleId'] = this._setTimeout(task.invoke, 0, Array.prototype.slice.call(task.data['args'], 1)); |
| break; |
| case 'setInterval': |
| task.data['handleId'] = this._setInterval(task.invoke, task.data['delay'], Array.prototype.slice.call(task.data['args'], 2)); |
| break; |
| case 'XMLHttpRequest.send': |
| throw new Error('Cannot make XHRs from within a fake async test. Request URL: ' + |
| task.data['url']); |
| case 'requestAnimationFrame': |
| case 'webkitRequestAnimationFrame': |
| case 'mozRequestAnimationFrame': |
| // Simulate a requestAnimationFrame by using a setTimeout with 16 ms. |
| // (60 frames per second) |
| task.data['handleId'] = this._setTimeout(task.invoke, 16, task.data['args'], this.trackPendingRequestAnimationFrame); |
| break; |
| default: |
| // user can define which macroTask they want to support by passing |
| // macroTaskOptions |
| const macroTaskOption = this.findMacroTaskOption(task); |
| if (macroTaskOption) { |
| const args = task.data && task.data['args']; |
| const delay = args && args.length > 1 ? args[1] : 0; |
| let callbackArgs = macroTaskOption.callbackArgs ? macroTaskOption.callbackArgs : args; |
| if (!!macroTaskOption.isPeriodic) { |
| // periodic macroTask, use setInterval to simulate |
| task.data['handleId'] = this._setInterval(task.invoke, delay, callbackArgs); |
| task.data.isPeriodic = true; |
| } |
| else { |
| // not periodic, use setTimeout to simulate |
| task.data['handleId'] = this._setTimeout(task.invoke, delay, callbackArgs); |
| } |
| break; |
| } |
| throw new Error('Unknown macroTask scheduled in fake async test: ' + task.source); |
| } |
| break; |
| case 'eventTask': |
| task = delegate.scheduleTask(target, task); |
| break; |
| } |
| return task; |
| } |
| onCancelTask(delegate, current, target, task) { |
| switch (task.source) { |
| case 'setTimeout': |
| case 'requestAnimationFrame': |
| case 'webkitRequestAnimationFrame': |
| case 'mozRequestAnimationFrame': |
| return this._clearTimeout(task.data['handleId']); |
| case 'setInterval': |
| return this._clearInterval(task.data['handleId']); |
| default: |
| // user can define which macroTask they want to support by passing |
| // macroTaskOptions |
| const macroTaskOption = this.findMacroTaskOption(task); |
| if (macroTaskOption) { |
| const handleId = task.data['handleId']; |
| return macroTaskOption.isPeriodic ? this._clearInterval(handleId) : |
| this._clearTimeout(handleId); |
| } |
| return delegate.cancelTask(target, task); |
| } |
| } |
| onInvoke(delegate, current, target, callback, applyThis, applyArgs, source) { |
| try { |
| FakeAsyncTestZoneSpec.patchDate(); |
| return delegate.invoke(target, callback, applyThis, applyArgs, source); |
| } |
| finally { |
| if (!this.patchDateLocked) { |
| FakeAsyncTestZoneSpec.resetDate(); |
| } |
| } |
| } |
| findMacroTaskOption(task) { |
| if (!this.macroTaskOptions) { |
| return null; |
| } |
| for (let i = 0; i < this.macroTaskOptions.length; i++) { |
| const macroTaskOption = this.macroTaskOptions[i]; |
| if (macroTaskOption.source === task.source) { |
| return macroTaskOption; |
| } |
| } |
| return null; |
| } |
| onHandleError(parentZoneDelegate, currentZone, targetZone, error) { |
| this._lastError = error; |
| return false; // Don't propagate error to parent zone. |
| } |
| } |
| // Export the class so that new instances can be created with proper |
| // constructor params. |
| Zone['FakeAsyncTestZoneSpec'] = FakeAsyncTestZoneSpec; |
| })(typeof window === 'object' && window || typeof self === 'object' && self || global); |
| Zone.__load_patch('fakeasync', (global, Zone, api) => { |
| const FakeAsyncTestZoneSpec = Zone && Zone['FakeAsyncTestZoneSpec']; |
| function getProxyZoneSpec() { |
| return Zone && Zone['ProxyZoneSpec']; |
| } |
| let _fakeAsyncTestZoneSpec = null; |
| /** |
| * Clears out the shared fake async zone for a test. |
| * To be called in a global `beforeEach`. |
| * |
| * @experimental |
| */ |
| function resetFakeAsyncZone() { |
| if (_fakeAsyncTestZoneSpec) { |
| _fakeAsyncTestZoneSpec.unlockDatePatch(); |
| } |
| _fakeAsyncTestZoneSpec = null; |
| // in node.js testing we may not have ProxyZoneSpec in which case there is nothing to reset. |
| getProxyZoneSpec() && getProxyZoneSpec().assertPresent().resetDelegate(); |
| } |
| /** |
| * Wraps a function to be executed in the fakeAsync zone: |
| * - microtasks are manually executed by calling `flushMicrotasks()`, |
| * - timers are synchronous, `tick()` simulates the asynchronous passage of time. |
| * |
| * If there are any pending timers at the end of the function, an exception will be thrown. |
| * |
| * Can be used to wrap inject() calls. |
| * |
| * ## Example |
| * |
| * {@example core/testing/ts/fake_async.ts region='basic'} |
| * |
| * @param fn |
| * @returns The function wrapped to be executed in the fakeAsync zone |
| * |
| * @experimental |
| */ |
| function fakeAsync(fn) { |
| // Not using an arrow function to preserve context passed from call site |
| const fakeAsyncFn = function (...args) { |
| const ProxyZoneSpec = getProxyZoneSpec(); |
| if (!ProxyZoneSpec) { |
| throw new Error('ProxyZoneSpec is needed for the async() test helper but could not be found. ' + |
| 'Please make sure that your environment includes zone.js/dist/proxy.js'); |
| } |
| const proxyZoneSpec = ProxyZoneSpec.assertPresent(); |
| if (Zone.current.get('FakeAsyncTestZoneSpec')) { |
| throw new Error('fakeAsync() calls can not be nested'); |
| } |
| try { |
| // in case jasmine.clock init a fakeAsyncTestZoneSpec |
| if (!_fakeAsyncTestZoneSpec) { |
| if (proxyZoneSpec.getDelegate() instanceof FakeAsyncTestZoneSpec) { |
| throw new Error('fakeAsync() calls can not be nested'); |
| } |
| _fakeAsyncTestZoneSpec = new FakeAsyncTestZoneSpec(); |
| } |
| let res; |
| const lastProxyZoneSpec = proxyZoneSpec.getDelegate(); |
| proxyZoneSpec.setDelegate(_fakeAsyncTestZoneSpec); |
| _fakeAsyncTestZoneSpec.lockDatePatch(); |
| try { |
| res = fn.apply(this, args); |
| flushMicrotasks(); |
| } |
| finally { |
| proxyZoneSpec.setDelegate(lastProxyZoneSpec); |
| } |
| if (_fakeAsyncTestZoneSpec.pendingPeriodicTimers.length > 0) { |
| throw new Error(`${_fakeAsyncTestZoneSpec.pendingPeriodicTimers.length} ` + |
| `periodic timer(s) still in the queue.`); |
| } |
| if (_fakeAsyncTestZoneSpec.pendingTimers.length > 0) { |
| throw new Error(`${_fakeAsyncTestZoneSpec.pendingTimers.length} timer(s) still in the queue.`); |
| } |
| return res; |
| } |
| finally { |
| resetFakeAsyncZone(); |
| } |
| }; |
| fakeAsyncFn.isFakeAsync = true; |
| return fakeAsyncFn; |
| } |
| function _getFakeAsyncZoneSpec() { |
| if (_fakeAsyncTestZoneSpec == null) { |
| _fakeAsyncTestZoneSpec = Zone.current.get('FakeAsyncTestZoneSpec'); |
| if (_fakeAsyncTestZoneSpec == null) { |
| throw new Error('The code should be running in the fakeAsync zone to call this function'); |
| } |
| } |
| return _fakeAsyncTestZoneSpec; |
| } |
| /** |
| * Simulates the asynchronous passage of time for the timers in the fakeAsync zone. |
| * |
| * The microtasks queue is drained at the very start of this function and after any timer callback |
| * has been executed. |
| * |
| * ## Example |
| * |
| * {@example core/testing/ts/fake_async.ts region='basic'} |
| * |
| * @experimental |
| */ |
| function tick(millis = 0, ignoreNestedTimeout = false) { |
| _getFakeAsyncZoneSpec().tick(millis, null, ignoreNestedTimeout); |
| } |
| /** |
| * Simulates the asynchronous passage of time for the timers in the fakeAsync zone by |
| * draining the macrotask queue until it is empty. The returned value is the milliseconds |
| * of time that would have been elapsed. |
| * |
| * @param maxTurns |
| * @returns The simulated time elapsed, in millis. |
| * |
| * @experimental |
| */ |
| function flush(maxTurns) { |
| return _getFakeAsyncZoneSpec().flush(maxTurns); |
| } |
| /** |
| * Discard all remaining periodic tasks. |
| * |
| * @experimental |
| */ |
| function discardPeriodicTasks() { |
| const zoneSpec = _getFakeAsyncZoneSpec(); |
| const pendingTimers = zoneSpec.pendingPeriodicTimers; |
| zoneSpec.pendingPeriodicTimers.length = 0; |
| } |
| /** |
| * Flush any pending microtasks. |
| * |
| * @experimental |
| */ |
| function flushMicrotasks() { |
| _getFakeAsyncZoneSpec().flushMicrotasks(); |
| } |
| Zone[api.symbol('fakeAsyncTest')] = |
| { resetFakeAsyncZone, flushMicrotasks, discardPeriodicTasks, tick, flush, fakeAsync }; |
| }, true); |
