@reactivex/rxjs

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data-ice="title">spec-js/operators/refCount-spec.js</h1> <pre class="source-code line-number raw-source-code"><code class="prettyprint linenums" data-ice="content">"use strict"; var chai_1 = require('chai'); var Rx = require('../../dist/cjs/Rx'); var Observable = Rx.Observable; /** @test {refCount} */ describe('ConnectableObservable.prototype.refCount', function () { asDiagram('refCount')('should turn a multicasted Observable an automatically ' + '(dis)connecting hot one', function () { var source = cold('--1-2---3-4--5-|'); var sourceSubs = '^ !'; var expected = '--1-2---3-4--5-|'; var result = source.publish().refCount(); expectObservable(result).toBe(expected); expectSubscriptions(source.subscriptions).toBe(sourceSubs); }); it('should count references', function () { var connectable = Observable.never().publish(); var refCounted = connectable.refCount(); var sub1 = refCounted.subscribe({ next: function () { } }); var sub2 = refCounted.subscribe({ next: function () { } }); var sub3 = refCounted.subscribe({ next: function () { } }); chai_1.expect(connectable._refCount).to.equal(3); sub1.unsubscribe(); sub2.unsubscribe(); sub3.unsubscribe(); }); it('should unsub from the source when all other subscriptions are unsubbed', function (done) { var unsubscribeCalled = false; var connectable = new Observable(function (observer) { observer.next(true); return function () { unsubscribeCalled = true; }; }).publish(); var refCounted = connectable.refCount(); var sub1 = refCounted.subscribe(function () { //noop }); var sub2 = refCounted.subscribe(function () { //noop }); var sub3 = refCounted.subscribe(function (x) { chai_1.expect(connectable._refCount).to.equal(1); }); sub1.unsubscribe(); sub2.unsubscribe(); sub3.unsubscribe(); chai_1.expect(connectable._refCount).to.equal(0); chai_1.expect(unsubscribeCalled).to.be.true; done(); }); it('should not unsubscribe when a subscriber synchronously unsubscribes if ' + 'other subscribers are present', function () { var unsubscribeCalled = false; var connectable = new Observable(function (observer) { observer.next(true); return function () { unsubscribeCalled = true; }; }).publishReplay(1); var refCounted = connectable.refCount(); refCounted.subscribe(); refCounted.subscribe().unsubscribe(); chai_1.expect(connectable._refCount).to.equal(1); chai_1.expect(unsubscribeCalled).to.be.false; }); it('should not unsubscribe when a subscriber synchronously unsubscribes if ' + 'other subscribers are present and the source is a Subject', function () { var arr = []; var subject = new Rx.Subject(); var connectable = subject.publishReplay(1); var refCounted = connectable.refCount(); refCounted.subscribe(function (val) { arr.push(val); }); subject.next('the number one'); refCounted.first().subscribe().unsubscribe(); subject.next('the number two'); chai_1.expect(connectable._refCount).to.equal(1); chai_1.expect(arr[0]).to.equal('the number one'); chai_1.expect(arr[1]).to.equal('the number two'); }); }); //# sourceMappingURL=refCount-spec.js.map</code></pre> </div> <footer class="footer"> Generated by <a href="https://esdoc.org">ESDoc<span data-ice="esdocVersion">(0.4.8)</span></a> </footer> <script src="script/search_index.js"></script> <script src="script/search.js"></script> <script src="script/pretty-print.js"></script> <script src="script/inherited-summary.js"></script> <script src="script/test-summary.js"></script> <script src="script/inner-link.js"></script> <script src="script/patch-for-local.js"></script> </body> </html>