@reactivex/rxjs
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<div class="content" data-ice="content"><h1 data-ice="title">spec-js/observables/merge-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 {merge} */
describe('Observable.merge(...observables)', function () {
it('should merge cold and cold', function () {
var e1 = cold('---a-----b-----c----|');
var e1subs = '^ !';
var e2 = cold('------x-----y-----z----|');
var e2subs = '^ !';
var expected = '---a--x--b--y--c--z----|';
var result = Observable.merge(e1, e2);
expectObservable(result).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
expectSubscriptions(e2.subscriptions).toBe(e2subs);
});
it('should return itself when try to merge single observable', function () {
var e1 = Observable.of('a');
var result = Observable.merge(e1);
chai_1.expect(e1).to.equal(result);
});
it('should merge hot and hot', function () {
var e1 = hot('---a---^-b-----c----|');
var e1subs = '^ !';
var e2 = hot('-----x-^----y-----z----|');
var e2subs = '^ !';
var expected = '--b--y--c--z----|';
var result = Observable.merge(e1, e2);
expectObservable(result).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
expectSubscriptions(e2.subscriptions).toBe(e2subs);
});
it('should merge hot and cold', function () {
var e1 = hot('---a-^---b-----c----|');
var e1subs = '^ !';
var e2 = cold('--x-----y-----z----|');
var e2subs = '^ !';
var expected = '--x-b---y-c---z----|';
var result = Observable.merge(e1, e2);
expectObservable(result).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
expectSubscriptions(e2.subscriptions).toBe(e2subs);
});
it('should merge parallel emissions', function () {
var e1 = hot('---a----b----c----|');
var e1subs = '^ !';
var e2 = hot('---x----y----z----|');
var e2subs = '^ !';
var expected = '---(ax)-(by)-(cz)-|';
var result = Observable.merge(e1, e2);
expectObservable(result).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
expectSubscriptions(e2.subscriptions).toBe(e2subs);
});
it('should merge empty and empty', function () {
var e1 = cold('|');
var e1subs = '(^!)';
var e2 = cold('|');
var e2subs = '(^!)';
var result = Observable.merge(e1, e2);
expectObservable(result).toBe('|');
expectSubscriptions(e1.subscriptions).toBe(e1subs);
expectSubscriptions(e2.subscriptions).toBe(e2subs);
});
it('should merge three empties', function () {
var e1 = cold('|');
var e1subs = '(^!)';
var e2 = cold('|');
var e2subs = '(^!)';
var e3 = cold('|');
var e3subs = '(^!)';
var result = Observable.merge(e1, e2, e3);
expectObservable(result).toBe('|');
expectSubscriptions(e1.subscriptions).toBe(e1subs);
expectSubscriptions(e2.subscriptions).toBe(e2subs);
expectSubscriptions(e3.subscriptions).toBe(e3subs);
});
it('should merge never and empty', function () {
var e1 = cold('-');
var e1subs = '^';
var e2 = cold('|');
var e2subs = '(^!)';
var result = Observable.merge(e1, e2);
expectObservable(result).toBe('-');
expectSubscriptions(e1.subscriptions).toBe(e1subs);
expectSubscriptions(e2.subscriptions).toBe(e2subs);
});
it('should merge never and never', function () {
var e1 = cold('-');
var e1subs = '^';
var e2 = cold('-');
var e2subs = '^';
var result = Observable.merge(e1, e2);
expectObservable(result).toBe('-');
expectSubscriptions(e1.subscriptions).toBe(e1subs);
expectSubscriptions(e2.subscriptions).toBe(e2subs);
});
it('should merge empty and throw', function () {
var e1 = cold('|');
var e1subs = '(^!)';
var e2 = cold('#');
var e2subs = '(^!)';
var result = Observable.merge(e1, e2);
expectObservable(result).toBe('#');
expectSubscriptions(e1.subscriptions).toBe(e1subs);
expectSubscriptions(e2.subscriptions).toBe(e2subs);
});
it('should merge hot and throw', function () {
var e1 = hot('--a--b--c--|');
var e1subs = '(^!)';
var e2 = cold('#');
var e2subs = '(^!)';
var result = Observable.merge(e1, e2);
expectObservable(result).toBe('#');
expectSubscriptions(e1.subscriptions).toBe(e1subs);
expectSubscriptions(e2.subscriptions).toBe(e2subs);
});
it('should merge never and throw', function () {
var e1 = cold('-');
var e1subs = '(^!)';
var e2 = cold('#');
var e2subs = '(^!)';
var result = Observable.merge(e1, e2);
expectObservable(result).toBe('#');
expectSubscriptions(e1.subscriptions).toBe(e1subs);
expectSubscriptions(e2.subscriptions).toBe(e2subs);
});
it('should merge empty and eventual error', function () {
var e1 = cold('|');
var e1subs = '(^!)';
var e2 = hot('-------#');
var e2subs = '^------!';
var expected = '-------#';
var result = Observable.merge(e1, e2);
expectObservable(result).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
expectSubscriptions(e2.subscriptions).toBe(e2subs);
});
it('should merge hot and error', function () {
var e1 = hot('--a--b--c--|');
var e1subs = '^ ! ';
var e2 = hot('-------# ');
var e2subs = '^ ! ';
var expected = '--a--b-# ';
var result = Observable.merge(e1, e2);
expectObservable(result).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
expectSubscriptions(e2.subscriptions).toBe(e2subs);
});
it('should merge never and error', function () {
var e1 = hot('-');
var e1subs = '^ !';
var e2 = hot('-------#');
var e2subs = '^ !';
var expected = '-------#';
var result = Observable.merge(e1, e2);
expectObservable(result).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
expectSubscriptions(e2.subscriptions).toBe(e2subs);
});
});
describe('Observable.merge(...observables, Scheduler, number)', function () {
it('should handle concurrency limits', function () {
var e1 = cold('---a---b---c---|');
var e2 = cold('-d---e---f--|');
var e3 = cold('---x---y---z---|');
var expected = '-d-a-e-b-f-c---x---y---z---|';
expectObservable(Observable.merge(e1, e2, e3, 2)).toBe(expected);
});
it('should handle scheduler', function () {
var e1 = Observable.of('a');
var e2 = Observable.of('b').delay(20, rxTestScheduler);
var expected = 'a-(b|)';
expectObservable(Observable.merge(e1, e2, rxTestScheduler)).toBe(expected);
});
it('should handle scheduler with concurrency limits', function () {
var e1 = cold('---a---b---c---|');
var e2 = cold('-d---e---f--|');
var e3 = cold('---x---y---z---|');
var expected = '-d-a-e-b-f-c---x---y---z---|';
expectObservable(Observable.merge(e1, e2, e3, 2, rxTestScheduler)).toBe(expected);
});
it('should use the scheduler even when one Observable is merged', function (done) {
var e1Subscribed = false;
var e1 = Observable.defer(function () {
e1Subscribed = true;
return Observable.of('a');
});
Observable
.merge(e1, Rx.Scheduler.async)
.subscribe({
error: done,
complete: function () {
chai_1.expect(e1Subscribed).to.be.true;
done();
}
});
chai_1.expect(e1Subscribed).to.be.false;
});
});
//# sourceMappingURL=merge-spec.js.map</code></pre>
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