@reactivex/rxjs

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class="kind-variable">V</span><span data-ice="name"><span><a href="variable/index.html#static-variable-Subject">Subject</a></span></span></li> <li data-ice="doc"><span data-ice="kind" class="kind-variable">V</span><span data-ice="name"><span><a href="variable/index.html#static-variable-SubjectSubscriber">SubjectSubscriber</a></span></span></li> <li data-ice="doc"><span data-ice="kind" class="kind-variable">V</span><span data-ice="name"><span><a href="variable/index.html#static-variable-Subscriber">Subscriber</a></span></span></li> <li data-ice="doc"><span data-ice="kind" class="kind-variable">V</span><span data-ice="name"><span><a href="variable/index.html#static-variable-Subscription">Subscription</a></span></span></li> <li data-ice="doc"><span data-ice="kind" class="kind-typedef">T</span><span data-ice="name"><span><a href="typedef/index.html#static-typedef-Rx.Scheduler">Rx.Scheduler</a></span></span></li> <li data-ice="doc"><span data-ice="kind" class="kind-typedef">T</span><span 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href="variable/index.html#static-variable-EmptyError">EmptyError</a></span></span></li> <li data-ice="doc"><span data-ice="kind" class="kind-variable">V</span><span data-ice="name"><span><a href="variable/index.html#static-variable-ObjectUnsubscribedError">ObjectUnsubscribedError</a></span></span></li> <li data-ice="doc"><span data-ice="kind" class="kind-variable">V</span><span data-ice="name"><span><a href="variable/index.html#static-variable-TimeoutError">TimeoutError</a></span></span></li> <li data-ice="doc"><span data-ice="kind" class="kind-variable">V</span><span data-ice="name"><span><a href="variable/index.html#static-variable-UnsubscriptionError">UnsubscriptionError</a></span></span></li> <li data-ice="doc"><span data-ice="kind" class="kind-variable">V</span><span data-ice="name"><span><a href="variable/index.html#static-variable-root">root</a></span></span></li> </ul> </div> </nav> <div class="content" data-ice="content"><h1 data-ice="title">spec-js/operators/do-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; var Subject = Rx.Subject; /** @test {do} */ describe('Observable.prototype.do', function () { asDiagram('do(x => console.log(x))')('should mirror multiple values and complete', function () { var e1 = cold('--1--2--3--|'); var e1subs = '^ !'; var expected = '--1--2--3--|'; var result = e1.do(function () { //noop }); expectObservable(result).toBe(expected); expectSubscriptions(e1.subscriptions).toBe(e1subs); }); it('should next with a callback', function () { var value = null; Observable.of(42).do(function (x) { value = x; }) .subscribe(); chai_1.expect(value).to.equal(42); }); it('should error with a callback', function () { var err = null; Observable.throw('bad').do(null, function (x) { err = x; }) .subscribe(null, function (ex) { chai_1.expect(ex).to.equal('bad'); }); chai_1.expect(err).to.equal('bad'); }); it('should handle everything with an observer', function (done) { var expected = [1, 2, 3]; var results = []; Observable.of(1, 2, 3) .do({ next: function (x) { results.push(x); }, error: function (err) { done(new Error('should not be called')); }, complete: function () { chai_1.expect(results).to.deep.equal(expected); done(); } }).subscribe(); }); it('should handle everything with a Subject', function (done) { var expected = [1, 2, 3]; var results = []; var subject = new Subject(); subject.subscribe({ next: function (x) { results.push(x); }, error: function (err) { done(new Error('should not be called')); }, complete: function () { chai_1.expect(results).to.deep.equal(expected); done(); } }); Observable.of(1, 2, 3) .do(subject) .subscribe(); }); it('should handle an error with a callback', function () { var errored = false; Observable.throw('bad').do(null, function (err) { chai_1.expect(err).to.equal('bad'); }) .subscribe(null, function (err) { errored = true; chai_1.expect(err).to.equal('bad'); }); chai_1.expect(errored).to.be.true; }); it('should handle an error with observer', function () { var errored = false; Observable.throw('bad').do({ error: function (err) { chai_1.expect(err).to.equal('bad'); } }) .subscribe(null, function (err) { errored = true; chai_1.expect(err).to.equal('bad'); }); chai_1.expect(errored).to.be.true; }); it('should handle complete with observer', function () { var completed = false; Observable.empty().do({ complete: function () { completed = true; } }).subscribe(); chai_1.expect(completed).to.be.true; }); it('should handle next with observer', function () { var value = null; Observable.of('hi').do({ next: function (x) { value = x; } }).subscribe(); chai_1.expect(value).to.equal('hi'); }); it('should raise error if next handler raises error', function () { Observable.of('hi').do({ next: function (x) { throw new Error('bad'); } }).subscribe(null, function (err) { chai_1.expect(err.message).to.equal('bad'); }); }); it('should raise error if error handler raises error', function () { Observable.throw('ops').do({ error: function (x) { throw new Error('bad'); } }).subscribe(null, function (err) { chai_1.expect(err.message).to.equal('bad'); }); }); it('should raise error if complete handler raises error', function () { Observable.empty().do({ complete: function () { throw new Error('bad'); } }).subscribe(null, function (err) { chai_1.expect(err.message).to.equal('bad'); }); }); it('should allow unsubscribing explicitly and early', function () { var e1 = hot('--1--2--3--#'); var unsub = ' ! '; var e1subs = '^ ! '; var expected = '--1--2-- '; var result = e1.do(function () { //noop }); expectObservable(result, unsub).toBe(expected); expectSubscriptions(e1.subscriptions).toBe(e1subs); }); it('should not break unsubscription chains when result is unsubscribed explicitly', function () { var e1 = hot('--1--2--3--#'); var e1subs = '^ ! '; var expected = '--1--2-- '; var unsub = ' ! '; var result = e1 .mergeMap(function (x) { return Observable.of(x); }) .do(function () { //noop }) .mergeMap(function (x) { return Observable.of(x); }); expectObservable(result, unsub).toBe(expected); expectSubscriptions(e1.subscriptions).toBe(e1subs); }); it('should mirror multiple values and complete', function () { var e1 = cold('--1--2--3--|'); var e1subs = '^ !'; var expected = '--1--2--3--|'; var result = e1.do(function () { //noop }); expectObservable(result).toBe(expected); expectSubscriptions(e1.subscriptions).toBe(e1subs); }); it('should mirror multiple values and terminate with error', function () { var e1 = cold('--1--2--3--#'); var e1subs = '^ !'; var expected = '--1--2--3--#'; var result = e1.do(function () { //noop }); expectObservable(result).toBe(expected); expectSubscriptions(e1.subscriptions).toBe(e1subs); }); }); //# sourceMappingURL=do-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>