@reactivex/rxjs
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Reactive Extensions for modern JavaScript
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<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-AsyncSubject">AsyncSubject</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-BehaviorSubject">BehaviorSubject</a></span></span></li>
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<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-ReplaySubject">ReplaySubject</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-Scheduler">Scheduler</a></span></span></li>
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<div class="content" data-ice="content"><h1 data-ice="title">spec-js/subjects/AsyncSubject-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 AsyncSubject = Rx.AsyncSubject;
var TestObserver = (function () {
function TestObserver() {
this.results = [];
}
TestObserver.prototype.next = function (value) {
this.results.push(value);
};
TestObserver.prototype.error = function (err) {
this.results.push(err);
};
TestObserver.prototype.complete = function () {
this.results.push('done');
};
return TestObserver;
}());
/** @test {AsyncSubject} */
describe('AsyncSubject', function () {
it('should emit the last value when complete', function () {
var subject = new AsyncSubject();
var observer = new TestObserver();
subject.subscribe(observer);
subject.next(1);
chai_1.expect(observer.results).to.deep.equal([]);
subject.next(2);
chai_1.expect(observer.results).to.deep.equal([]);
subject.complete();
chai_1.expect(observer.results).to.deep.equal([2, 'done']);
});
it('should emit the last value when subscribing after complete', function () {
var subject = new AsyncSubject();
var observer = new TestObserver();
subject.next(1);
subject.next(2);
subject.complete();
subject.subscribe(observer);
chai_1.expect(observer.results).to.deep.equal([2, 'done']);
});
it('should keep emitting the last value to subsequent subscriptions', function () {
var subject = new AsyncSubject();
var observer = new TestObserver();
var subscription = subject.subscribe(observer);
subject.next(1);
chai_1.expect(observer.results).to.deep.equal([]);
subject.next(2);
chai_1.expect(observer.results).to.deep.equal([]);
subject.complete();
chai_1.expect(observer.results).to.deep.equal([2, 'done']);
subscription.unsubscribe();
observer.results = [];
subject.subscribe(observer);
chai_1.expect(observer.results).to.deep.equal([2, 'done']);
});
it('should not emit values after complete', function () {
var subject = new AsyncSubject();
var observer = new TestObserver();
subject.subscribe(observer);
subject.next(1);
chai_1.expect(observer.results).to.deep.equal([]);
subject.next(2);
chai_1.expect(observer.results).to.deep.equal([]);
subject.complete();
chai_1.expect(observer.results).to.deep.equal([2, 'done']);
});
it('should not allow change value after complete', function () {
var subject = new AsyncSubject();
var observer = new TestObserver();
var otherObserver = new TestObserver();
subject.subscribe(observer);
subject.next(1);
chai_1.expect(observer.results).to.deep.equal([]);
subject.complete();
chai_1.expect(observer.results).to.deep.equal([1, 'done']);
subject.next(2);
subject.subscribe(otherObserver);
chai_1.expect(otherObserver.results).to.deep.equal([1, 'done']);
});
it('should not emit values if unsubscribed before complete', function () {
var subject = new AsyncSubject();
var observer = new TestObserver();
var subscription = subject.subscribe(observer);
subject.next(1);
chai_1.expect(observer.results).to.deep.equal([]);
subject.next(2);
chai_1.expect(observer.results).to.deep.equal([]);
subscription.unsubscribe();
subject.next(3);
chai_1.expect(observer.results).to.deep.equal([]);
subject.complete();
chai_1.expect(observer.results).to.deep.equal([]);
});
it('should just complete if no value has been nexted into it', function () {
var subject = new AsyncSubject();
var observer = new TestObserver();
subject.subscribe(observer);
chai_1.expect(observer.results).to.deep.equal([]);
subject.complete();
chai_1.expect(observer.results).to.deep.equal(['done']);
});
it('should keep emitting complete to subsequent subscriptions', function () {
var subject = new AsyncSubject();
var observer = new TestObserver();
var subscription = subject.subscribe(observer);
chai_1.expect(observer.results).to.deep.equal([]);
subject.complete();
chai_1.expect(observer.results).to.deep.equal(['done']);
subscription.unsubscribe();
observer.results = [];
subject.subscribe(observer);
chai_1.expect(observer.results).to.deep.equal(['done']);
});
it('should only error if an error is passed into it', function () {
var expected = new Error('bad');
var subject = new AsyncSubject();
var observer = new TestObserver();
subject.subscribe(observer);
subject.next(1);
chai_1.expect(observer.results).to.deep.equal([]);
subject.error(expected);
chai_1.expect(observer.results).to.deep.equal([expected]);
});
it('should keep emitting error to subsequent subscriptions', function () {
var expected = new Error('bad');
var subject = new AsyncSubject();
var observer = new TestObserver();
subject.subscribe(observer);
subject.next(1);
chai_1.expect(observer.results).to.deep.equal([]);
subject.error(expected);
chai_1.expect(observer.results).to.deep.equal([expected]);
subject.unsubscribe();
observer.results = [];
subject.subscribe(observer);
chai_1.expect(observer.results).to.deep.equal([expected]);
});
});
//# sourceMappingURL=AsyncSubject-spec.js.map</code></pre>
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