510 lines
19 KiB
JavaScript
510 lines
19 KiB
JavaScript
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// Copyright (c) Microsoft, All rights reserved. See License.txt in the project root for license information.
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;(function (factory) {
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var objectTypes = {
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'function': true,
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'object': true
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};
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function checkGlobal(value) {
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return (value && value.Object === Object) ? value : null;
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}
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var freeExports = (objectTypes[typeof exports] && exports && !exports.nodeType) ? exports : null;
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var freeModule = (objectTypes[typeof module] && module && !module.nodeType) ? module : null;
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var freeGlobal = checkGlobal(freeExports && freeModule && typeof global === 'object' && global);
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var freeSelf = checkGlobal(objectTypes[typeof self] && self);
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var freeWindow = checkGlobal(objectTypes[typeof window] && window);
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var moduleExports = (freeModule && freeModule.exports === freeExports) ? freeExports : null;
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var thisGlobal = checkGlobal(objectTypes[typeof this] && this);
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var root = freeGlobal || ((freeWindow !== (thisGlobal && thisGlobal.window)) && freeWindow) || freeSelf || thisGlobal || Function('return this')();
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// Because of build optimizers
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if (typeof define === 'function' && define.amd) {
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define(['./rx.virtualtime', 'exports'], function (Rx, exports) {
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root.Rx = factory(root, exports, Rx);
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return root.Rx;
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});
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} else if (typeof module === 'object' && module && module.exports === freeExports) {
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module.exports = factory(root, module.exports, require('./rx'));
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} else {
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root.Rx = factory(root, {}, root.Rx);
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}
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}.call(this, function (root, exp, Rx, undefined) {
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// Defaults
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var Observer = Rx.Observer,
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Observable = Rx.Observable,
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Notification = Rx.Notification,
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VirtualTimeScheduler = Rx.VirtualTimeScheduler,
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Disposable = Rx.Disposable,
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disposableEmpty = Disposable.empty,
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disposableCreate = Disposable.create,
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CompositeDisposable = Rx.CompositeDisposable,
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inherits = Rx.internals.inherits,
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defaultComparer = Rx.internals.isEqual;
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function OnNextPredicate(predicate) {
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this.predicate = predicate;
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}
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OnNextPredicate.prototype.equals = function (other) {
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if (other === this) { return true; }
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if (other == null) { return false; }
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if (other.kind !== 'N') { return false; }
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return this.predicate(other.value);
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};
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function OnErrorPredicate(predicate) {
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this.predicate = predicate;
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}
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OnErrorPredicate.prototype.equals = function (other) {
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if (other === this) { return true; }
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if (other == null) { return false; }
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if (other.kind !== 'E') { return false; }
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return this.predicate(other.error);
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};
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var ReactiveTest = Rx.ReactiveTest = {
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/** Default virtual time used for creation of observable sequences in unit tests. */
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created: 100,
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/** Default virtual time used to subscribe to observable sequences in unit tests. */
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subscribed: 200,
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/** Default virtual time used to dispose subscriptions in unit tests. */
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disposed: 1000,
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/**
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* Factory method for an OnNext notification record at a given time with a given value or a predicate function.
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*
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* 1 - ReactiveTest.onNext(200, 42);
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* 2 - ReactiveTest.onNext(200, function (x) { return x.length == 2; });
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*
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* @param ticks Recorded virtual time the OnNext notification occurs.
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* @param value Recorded value stored in the OnNext notification or a predicate.
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* @return Recorded OnNext notification.
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*/
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onNext: function (ticks, value) {
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return typeof value === 'function' ?
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new Recorded(ticks, new OnNextPredicate(value)) :
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new Recorded(ticks, Notification.createOnNext(value));
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},
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/**
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* Factory method for an OnError notification record at a given time with a given error.
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*
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* 1 - ReactiveTest.onNext(200, new Error('error'));
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* 2 - ReactiveTest.onNext(200, function (e) { return e.message === 'error'; });
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*
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* @param ticks Recorded virtual time the OnError notification occurs.
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* @param exception Recorded exception stored in the OnError notification.
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* @return Recorded OnError notification.
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*/
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onError: function (ticks, error) {
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return typeof error === 'function' ?
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new Recorded(ticks, new OnErrorPredicate(error)) :
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new Recorded(ticks, Notification.createOnError(error));
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},
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/**
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* Factory method for an OnCompleted notification record at a given time.
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*
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* @param ticks Recorded virtual time the OnCompleted notification occurs.
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* @return Recorded OnCompleted notification.
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*/
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onCompleted: function (ticks) {
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return new Recorded(ticks, Notification.createOnCompleted());
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},
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/**
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* Factory method for a subscription record based on a given subscription and disposal time.
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*
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* @param start Virtual time indicating when the subscription was created.
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* @param end Virtual time indicating when the subscription was disposed.
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* @return Subscription object.
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*/
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subscribe: function (start, end) {
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return new Subscription(start, end);
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}
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};
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/**
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* Creates a new object recording the production of the specified value at the given virtual time.
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*
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* @constructor
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* @param {Number} time Virtual time the value was produced on.
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* @param {Mixed} value Value that was produced.
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* @param {Function} comparer An optional comparer.
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*/
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var Recorded = Rx.Recorded = function (time, value, comparer) {
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this.time = time;
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this.value = value;
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this.comparer = comparer || defaultComparer;
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};
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/**
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* Checks whether the given recorded object is equal to the current instance.
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*
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* @param {Recorded} other Recorded object to check for equality.
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* @returns {Boolean} true if both objects are equal; false otherwise.
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*/
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Recorded.prototype.equals = function (other) {
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return this.time === other.time && this.comparer(this.value, other.value);
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};
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/**
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* Returns a string representation of the current Recorded value.
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*
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* @returns {String} String representation of the current Recorded value.
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*/
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Recorded.prototype.toString = function () {
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return this.value.toString() + '@' + this.time;
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};
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/**
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* Creates a new subscription object with the given virtual subscription and unsubscription time.
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*
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* @constructor
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* @param {Number} subscribe Virtual time at which the subscription occurred.
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* @param {Number} unsubscribe Virtual time at which the unsubscription occurred.
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*/
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var Subscription = Rx.Subscription = function (start, end) {
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this.subscribe = start;
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this.unsubscribe = end || Number.MAX_VALUE;
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};
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/**
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* Checks whether the given subscription is equal to the current instance.
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* @param other Subscription object to check for equality.
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* @returns {Boolean} true if both objects are equal; false otherwise.
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*/
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Subscription.prototype.equals = function (other) {
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return this.subscribe === other.subscribe && this.unsubscribe === other.unsubscribe;
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};
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/**
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* Returns a string representation of the current Subscription value.
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* @returns {String} String representation of the current Subscription value.
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*/
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Subscription.prototype.toString = function () {
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return '(' + this.subscribe + ', ' + (this.unsubscribe === Number.MAX_VALUE ? 'Infinite' : this.unsubscribe) + ')';
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};
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var MockDisposable = Rx.MockDisposable = function (scheduler) {
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this.scheduler = scheduler;
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this.disposes = [];
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this.disposes.push(this.scheduler.clock);
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};
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MockDisposable.prototype.dispose = function () {
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this.disposes.push(this.scheduler.clock);
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};
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var MockObserver = (function (__super__) {
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inherits(MockObserver, __super__);
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function MockObserver(scheduler) {
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__super__.call(this);
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this.scheduler = scheduler;
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this.messages = [];
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}
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var MockObserverPrototype = MockObserver.prototype;
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MockObserverPrototype.onNext = function (value) {
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this.messages.push(new Recorded(this.scheduler.clock, Notification.createOnNext(value)));
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};
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MockObserverPrototype.onError = function (e) {
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this.messages.push(new Recorded(this.scheduler.clock, Notification.createOnError(e)));
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};
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MockObserverPrototype.onCompleted = function () {
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this.messages.push(new Recorded(this.scheduler.clock, Notification.createOnCompleted()));
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};
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return MockObserver;
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})(Observer);
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function MockPromise(scheduler, messages) {
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var self = this;
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this.scheduler = scheduler;
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this.messages = messages;
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this.subscriptions = [];
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this.observers = [];
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for (var i = 0, len = this.messages.length; i < len; i++) {
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var message = this.messages[i],
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notification = message.value;
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(function (innerNotification) {
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scheduler.scheduleAbsolute(null, message.time, function () {
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var obs = self.observers.slice(0);
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for (var j = 0, jLen = obs.length; j < jLen; j++) {
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innerNotification.accept(obs[j]);
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}
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return disposableEmpty;
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});
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})(notification);
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}
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}
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MockPromise.prototype.then = function (onResolved, onRejected) {
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var self = this;
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this.subscriptions.push(new Subscription(this.scheduler.clock));
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var index = this.subscriptions.length - 1;
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var newPromise;
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var observer = Rx.Observer.create(
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function (x) {
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var retValue = onResolved(x);
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if (retValue && typeof retValue.then === 'function') {
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newPromise = retValue;
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} else {
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var ticks = self.scheduler.clock;
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newPromise = new MockPromise(self.scheduler, [Rx.ReactiveTest.onNext(ticks, undefined), Rx.ReactiveTest.onCompleted(ticks)]);
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}
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var idx = self.observers.indexOf(observer);
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self.observers.splice(idx, 1);
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self.subscriptions[index] = new Subscription(self.subscriptions[index].subscribe, self.scheduler.clock);
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},
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function (err) {
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onRejected(err);
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var idx = self.observers.indexOf(observer);
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self.observers.splice(idx, 1);
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self.subscriptions[index] = new Subscription(self.subscriptions[index].subscribe, self.scheduler.clock);
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}
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);
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this.observers.push(observer);
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return newPromise || new MockPromise(this.scheduler, this.messages);
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};
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var HotObservable = (function (__super__) {
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inherits(HotObservable, __super__);
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function HotObservable(scheduler, messages) {
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__super__.call(this);
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var message, notification, observable = this;
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this.scheduler = scheduler;
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this.messages = messages;
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this.subscriptions = [];
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this.observers = [];
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for (var i = 0, len = this.messages.length; i < len; i++) {
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message = this.messages[i];
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notification = message.value;
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(function (innerNotification) {
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scheduler.scheduleAbsolute(null, message.time, function () {
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var obs = observable.observers.slice(0);
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for (var j = 0, jLen = obs.length; j < jLen; j++) {
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innerNotification.accept(obs[j]);
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}
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return disposableEmpty;
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});
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})(notification);
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}
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}
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HotObservable.prototype._subscribe = function (o) {
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var observable = this;
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this.observers.push(o);
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this.subscriptions.push(new Subscription(this.scheduler.clock));
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var index = this.subscriptions.length - 1;
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return disposableCreate(function () {
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var idx = observable.observers.indexOf(o);
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observable.observers.splice(idx, 1);
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observable.subscriptions[index] = new Subscription(observable.subscriptions[index].subscribe, observable.scheduler.clock);
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});
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};
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return HotObservable;
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})(Observable);
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var ColdObservable = (function (__super__) {
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inherits(ColdObservable, __super__);
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function ColdObservable(scheduler, messages) {
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__super__.call(this);
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this.scheduler = scheduler;
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this.messages = messages;
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this.subscriptions = [];
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}
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ColdObservable.prototype._subscribe = function (o) {
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var message, notification, observable = this;
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this.subscriptions.push(new Subscription(this.scheduler.clock));
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var index = this.subscriptions.length - 1;
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var d = new CompositeDisposable();
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for (var i = 0, len = this.messages.length; i < len; i++) {
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message = this.messages[i];
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notification = message.value;
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(function (innerNotification) {
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d.add(observable.scheduler.scheduleRelative(null, message.time, function () {
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innerNotification.accept(o);
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return disposableEmpty;
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}));
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})(notification);
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}
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return disposableCreate(function () {
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observable.subscriptions[index] = new Subscription(observable.subscriptions[index].subscribe, observable.scheduler.clock);
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d.dispose();
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});
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};
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return ColdObservable;
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})(Observable);
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/** Virtual time scheduler used for testing applications and libraries built using Reactive Extensions. */
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Rx.TestScheduler = (function (__super__) {
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inherits(TestScheduler, __super__);
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function baseComparer(x, y) {
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return x > y ? 1 : (x < y ? -1 : 0);
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}
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function TestScheduler() {
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__super__.call(this, 0, baseComparer);
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}
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/**
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* Schedules an action to be executed at the specified virtual time.
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*
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* @param state State passed to the action to be executed.
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* @param dueTime Absolute virtual time at which to execute the action.
|
||
|
|
* @param action Action to be executed.
|
||
|
|
* @return Disposable object used to cancel the scheduled action (best effort).
|
||
|
|
*/
|
||
|
|
TestScheduler.prototype.scheduleAbsolute = function (state, dueTime, action) {
|
||
|
|
dueTime <= this.clock && (dueTime = this.clock + 1);
|
||
|
|
return __super__.prototype.scheduleAbsolute.call(this, state, dueTime, action);
|
||
|
|
};
|
||
|
|
/**
|
||
|
|
* Adds a relative virtual time to an absolute virtual time value.
|
||
|
|
*
|
||
|
|
* @param absolute Absolute virtual time value.
|
||
|
|
* @param relative Relative virtual time value to add.
|
||
|
|
* @return Resulting absolute virtual time sum value.
|
||
|
|
*/
|
||
|
|
TestScheduler.prototype.add = function (absolute, relative) {
|
||
|
|
return absolute + relative;
|
||
|
|
};
|
||
|
|
/**
|
||
|
|
* Converts the absolute virtual time value to a DateTimeOffset value.
|
||
|
|
*
|
||
|
|
* @param absolute Absolute virtual time value to convert.
|
||
|
|
* @return Corresponding DateTimeOffset value.
|
||
|
|
*/
|
||
|
|
TestScheduler.prototype.toAbsoluteTime = function (absolute) {
|
||
|
|
return new Date(absolute).getTime();
|
||
|
|
};
|
||
|
|
/**
|
||
|
|
* Converts the TimeSpan value to a relative virtual time value.
|
||
|
|
*
|
||
|
|
* @param timeSpan TimeSpan value to convert.
|
||
|
|
* @return Corresponding relative virtual time value.
|
||
|
|
*/
|
||
|
|
TestScheduler.prototype.toRelativeTime = function (timeSpan) {
|
||
|
|
return timeSpan;
|
||
|
|
};
|
||
|
|
/**
|
||
|
|
* Starts the test scheduler and uses the specified virtual times to invoke the factory function, subscribe to the resulting sequence, and dispose the subscription.
|
||
|
|
*
|
||
|
|
* @param create Factory method to create an observable sequence.
|
||
|
|
* @param created Virtual time at which to invoke the factory to create an observable sequence.
|
||
|
|
* @param subscribed Virtual time at which to subscribe to the created observable sequence.
|
||
|
|
* @param disposed Virtual time at which to dispose the subscription.
|
||
|
|
* @return Observer with timestamped recordings of notification messages that were received during the virtual time window when the subscription to the source sequence was active.
|
||
|
|
*/
|
||
|
|
TestScheduler.prototype.startScheduler = function (createFn, settings) {
|
||
|
|
settings || (settings = {});
|
||
|
|
settings.created == null && (settings.created = ReactiveTest.created);
|
||
|
|
settings.subscribed == null && (settings.subscribed = ReactiveTest.subscribed);
|
||
|
|
settings.disposed == null && (settings.disposed = ReactiveTest.disposed);
|
||
|
|
|
||
|
|
var observer = this.createObserver(), source, subscription;
|
||
|
|
|
||
|
|
this.scheduleAbsolute(null, settings.created, function () {
|
||
|
|
source = createFn();
|
||
|
|
return disposableEmpty;
|
||
|
|
});
|
||
|
|
|
||
|
|
this.scheduleAbsolute(null, settings.subscribed, function () {
|
||
|
|
subscription = source.subscribe(observer);
|
||
|
|
return disposableEmpty;
|
||
|
|
});
|
||
|
|
|
||
|
|
this.scheduleAbsolute(null, settings.disposed, function () {
|
||
|
|
subscription.dispose();
|
||
|
|
return disposableEmpty;
|
||
|
|
});
|
||
|
|
|
||
|
|
this.start();
|
||
|
|
|
||
|
|
return observer;
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Creates a hot observable using the specified timestamped notification messages either as an array or arguments.
|
||
|
|
* @param messages Notifications to surface through the created sequence at their specified absolute virtual times.
|
||
|
|
* @return Hot observable sequence that can be used to assert the timing of subscriptions and notifications.
|
||
|
|
*/
|
||
|
|
TestScheduler.prototype.createHotObservable = function () {
|
||
|
|
var len = arguments.length, args;
|
||
|
|
if (Array.isArray(arguments[0])) {
|
||
|
|
args = arguments[0];
|
||
|
|
} else {
|
||
|
|
args = new Array(len);
|
||
|
|
for (var i = 0; i < len; i++) { args[i] = arguments[i]; }
|
||
|
|
}
|
||
|
|
return new HotObservable(this, args);
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Creates a cold observable using the specified timestamped notification messages either as an array or arguments.
|
||
|
|
* @param messages Notifications to surface through the created sequence at their specified virtual time offsets from the sequence subscription time.
|
||
|
|
* @return Cold observable sequence that can be used to assert the timing of subscriptions and notifications.
|
||
|
|
*/
|
||
|
|
TestScheduler.prototype.createColdObservable = function () {
|
||
|
|
var len = arguments.length, args;
|
||
|
|
if (Array.isArray(arguments[0])) {
|
||
|
|
args = arguments[0];
|
||
|
|
} else {
|
||
|
|
args = new Array(len);
|
||
|
|
for (var i = 0; i < len; i++) { args[i] = arguments[i]; }
|
||
|
|
}
|
||
|
|
return new ColdObservable(this, args);
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Creates a resolved promise with the given value and ticks
|
||
|
|
* @param {Number} ticks The absolute time of the resolution.
|
||
|
|
* @param {Any} value The value to yield at the given tick.
|
||
|
|
* @returns {MockPromise} A mock Promise which fulfills with the given value.
|
||
|
|
*/
|
||
|
|
TestScheduler.prototype.createResolvedPromise = function (ticks, value) {
|
||
|
|
return new MockPromise(this, [Rx.ReactiveTest.onNext(ticks, value), Rx.ReactiveTest.onCompleted(ticks)]);
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Creates a rejected promise with the given reason and ticks
|
||
|
|
* @param {Number} ticks The absolute time of the resolution.
|
||
|
|
* @param {Any} reason The reason for rejection to yield at the given tick.
|
||
|
|
* @returns {MockPromise} A mock Promise which rejects with the given reason.
|
||
|
|
*/
|
||
|
|
TestScheduler.prototype.createRejectedPromise = function (ticks, reason) {
|
||
|
|
return new MockPromise(this, [Rx.ReactiveTest.onError(ticks, reason)]);
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Creates an observer that records received notification messages and timestamps those.
|
||
|
|
* @return Observer that can be used to assert the timing of received notifications.
|
||
|
|
*/
|
||
|
|
TestScheduler.prototype.createObserver = function () {
|
||
|
|
return new MockObserver(this);
|
||
|
|
};
|
||
|
|
|
||
|
|
return TestScheduler;
|
||
|
|
})(VirtualTimeScheduler);
|
||
|
|
|
||
|
|
return Rx;
|
||
|
|
}));
|