@reactivex/rxjs

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data-ice="title">spec-js/util/subscribeToResult-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 subscribeToResult_1 = require('../../dist/cjs/util/subscribeToResult'); var OuterSubscriber_1 = require('../../dist/cjs/OuterSubscriber'); var iterator_1 = require('../../dist/cjs/symbol/iterator'); var symbol_observable_1 = require('symbol-observable'); describe('subscribeToResult', function () { it('should synchronously complete when subscribe to scalarObservable', function () { var result = Rx.Observable.of(42); var expected; var subscriber = new OuterSubscriber_1.OuterSubscriber(function (x) { return expected = x; }); var subscription = subscribeToResult_1.subscribeToResult(subscriber, result); chai_1.expect(expected).to.be.equal(42); chai_1.expect(subscription).to.be.null; }); it('should subscribe to observables that are an instanceof Rx.Observable', function (done) { var expected = [1, 2, 3]; var result = Rx.Observable.range(1, 3); var subscriber = new OuterSubscriber_1.OuterSubscriber(function (x) { chai_1.expect(expected.shift()).to.be.equal(x); }, function () { done(new Error('should not be called')); }, function () { chai_1.expect(expected).to.be.empty; done(); }); subscribeToResult_1.subscribeToResult(subscriber, result); }); it('should emit error when observable emits error', function (done) { var result = Rx.Observable.throw(new Error('error')); var subscriber = new OuterSubscriber_1.OuterSubscriber(function (x) { done(new Error('should not be called')); }, function (err) { chai_1.expect(err).to.be.an('error', 'error'); done(); }, function () { done(new Error('should not be called')); }); subscribeToResult_1.subscribeToResult(subscriber, result); }); it('should subscribe to an array and emit synchronously', function () { var result = [1, 2, 3]; var expected = []; var subscriber = new OuterSubscriber_1.OuterSubscriber(function (x) { return expected.push(x); }); subscribeToResult_1.subscribeToResult(subscriber, result); chai_1.expect(expected).to.be.deep.equal(result); }); it('should subscribe to a promise', function (done) { var result = Promise.resolve(42); var subscriber = new OuterSubscriber_1.OuterSubscriber(function (x) { chai_1.expect(x).to.be.equal(42); }, function () { done(new Error('should not be called')); }, done); subscribeToResult_1.subscribeToResult(subscriber, result); }); it('should emits error when the promise rejects', function (done) { var result = Promise.reject(42); var subscriber = new OuterSubscriber_1.OuterSubscriber(function (x) { done(new Error('should not be called')); }, function (x) { chai_1.expect(x).to.be.equal(42); done(); }, function () { done(new Error('should not be called')); }); subscribeToResult_1.subscribeToResult(subscriber, result); }); it('should subscribe an iterable and emit results synchronously', function () { var expected; var iteratorResults = [ { value: 42, done: false }, { done: true } ]; var iterable = (_a = {}, _a[iterator_1.$$iterator] = function () { return { next: function () { return iteratorResults.shift(); } }; }, _a ); var subscriber = new OuterSubscriber_1.OuterSubscriber(function (x) { return expected = x; }); subscribeToResult_1.subscribeToResult(subscriber, iterable); chai_1.expect(expected).to.be.equal(42); var _a; }); it('should subscribe to to an object that implements Symbol.observable', function (done) { var observableSymbolObject = (_a = {}, _a[symbol_observable_1.default] = function () { return Rx.Observable.of(42); }, _a); var subscriber = new OuterSubscriber_1.OuterSubscriber(function (x) { chai_1.expect(x).to.be.equal(42); }, function () { done(new Error('should not be called')); }, done); subscribeToResult_1.subscribeToResult(subscriber, observableSymbolObject); var _a; }); it('should emit an error if value returned by Symbol.observable call is not a valid observable', function (done) { var observableSymbolObject = (_a = {}, _a[symbol_observable_1.default] = function () { return ({}); }, _a); var subscriber = new OuterSubscriber_1.OuterSubscriber(function (x) { done(new Error('should not be called')); }, function (x) { chai_1.expect(x).to.be.an('error', 'invalid observable'); done(); }, function () { done(new Error('should not be called')); }); subscribeToResult_1.subscribeToResult(subscriber, observableSymbolObject); var _a; }); it('should emit an error when trying to subscribe to an unknown type of object', function (done) { var subscriber = new OuterSubscriber_1.OuterSubscriber(function (x) { done(new Error('should not be called')); }, function (x) { chai_1.expect(x).to.be.an('error', 'unknown type returned'); done(); }, function () { done(new Error('should not be called')); }); subscribeToResult_1.subscribeToResult(subscriber, {}); }); }); //# sourceMappingURL=subscribeToResult-spec.js.map</code></pre> </div> <footer class="footer"> 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