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<div class="content" data-ice="content"><h1 data-ice="title">spec-js/operators/mergeAll-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 {mergeAll} */
describe('Observable.prototype.mergeAll', function () {
asDiagram('mergeAll')('should merge a hot observable of cold observables', function () {
var x = cold('--a---b--c---d--| ');
var y = cold('----e---f--g---|');
var e1 = hot('--x------y-------| ', { x: x, y: y });
var expected = '----a---b--c-e-d-f--g---|';
expectObservable(e1.mergeAll()).toBe(expected);
});
it('should merge all observables in an observable', function () {
var e1 = Observable.from([
Observable.of('a'),
Observable.of('b'),
Observable.of('c')
]);
var expected = '(abc|)';
expectObservable(e1.mergeAll()).toBe(expected);
});
it('should throw if any child observable throws', function () {
var e1 = Observable.from([
Observable.of('a'),
Observable.throw('error'),
Observable.of('c')
]);
var expected = '(a#)';
expectObservable(e1.mergeAll()).toBe(expected);
});
it('should handle merging a hot observable of observables', function () {
var x = cold('a---b---c---| ');
var xsubs = ' ^ ! ';
var y = cold('d---e---f---|');
var ysubs = ' ^ !';
var e1 = hot('--x--y--| ', { x: x, y: y });
var e1subs = '^ !';
var expected = '--a--db--ec--f---|';
expectObservable(e1.mergeAll()).toBe(expected);
expectSubscriptions(x.subscriptions).toBe(xsubs);
expectSubscriptions(y.subscriptions).toBe(ysubs);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
it('should merge one cold Observable at a time with parameter concurrency=1', function () {
var x = cold('a---b---c---| ');
var xsubs = ' ^ ! ';
var y = cold('d---e---f---|');
var ysubs = ' ^ !';
var e1 = hot('--x--y--| ', { x: x, y: y });
var e1subs = '^ !';
var expected = '--a---b---c---d---e---f---|';
expectObservable(e1.mergeAll(1)).toBe(expected);
expectSubscriptions(x.subscriptions).toBe(xsubs);
expectSubscriptions(y.subscriptions).toBe(ysubs);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
it('should merge two cold Observables at a time with parameter concurrency=2', function () {
var x = cold('a---b---c---| ');
var xsubs = ' ^ ! ';
var y = cold('d---e---f---| ');
var ysubs = ' ^ ! ';
var z = cold('--g---h-|');
var zsubs = ' ^ !';
var e1 = hot('--x--y--z--| ', { x: x, y: y, z: z });
var e1subs = '^ !';
var expected = '--a--db--ec--f--g---h-|';
expectObservable(e1.mergeAll(2)).toBe(expected);
expectSubscriptions(x.subscriptions).toBe(xsubs);
expectSubscriptions(y.subscriptions).toBe(ysubs);
expectSubscriptions(z.subscriptions).toBe(zsubs);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
it('should merge one hot Observable at a time with parameter concurrency=1', function () {
var x = hot('---a---b---c---| ');
var xsubs = ' ^ ! ';
var y = hot('-------------d---e---f---|');
var ysubs = ' ^ !';
var e1 = hot('--x--y--| ', { x: x, y: y });
var e1subs = '^ !';
var expected = '---a---b---c-----e---f---|';
expectObservable(e1.mergeAll(1)).toBe(expected);
expectSubscriptions(x.subscriptions).toBe(xsubs);
expectSubscriptions(y.subscriptions).toBe(ysubs);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
it('should merge two hot Observables at a time with parameter concurrency=2', function () {
var x = hot('i--a---b---c---| ');
var xsubs = ' ^ ! ';
var y = hot('-i-i--d---e---f---| ');
var ysubs = ' ^ ! ';
var z = hot('--i--i--i--i-----g---h-|');
var zsubs = ' ^ !';
var e1 = hot('--x--y--z--| ', { x: x, y: y, z: z });
var e1subs = '^ !';
var expected = '---a--db--ec--f--g---h-|';
expectObservable(e1.mergeAll(2)).toBe(expected);
expectSubscriptions(x.subscriptions).toBe(xsubs);
expectSubscriptions(y.subscriptions).toBe(ysubs);
expectSubscriptions(z.subscriptions).toBe(zsubs);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
it('should handle merging a hot observable of observables, outer unsubscribed early', function () {
var x = cold('a---b---c---| ');
var xsubs = ' ^ ! ';
var y = cold('d---e---f---|');
var ysubs = ' ^ ! ';
var e1 = hot('--x--y--| ', { x: x, y: y });
var e1subs = '^ ! ';
var unsub = ' ! ';
var expected = '--a--db--ec-- ';
expectObservable(e1.mergeAll(), unsub).toBe(expected);
expectSubscriptions(x.subscriptions).toBe(xsubs);
expectSubscriptions(y.subscriptions).toBe(ysubs);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
it('should not break unsubscription chains when result is unsubscribed explicitly', function () {
var x = cold('a---b---c---| ');
var xsubs = ' ^ ! ';
var y = cold('d---e---f---|');
var ysubs = ' ^ ! ';
var e1 = hot('--x--y--| ', { x: x, y: y });
var e1subs = '^ ! ';
var expected = '--a--db--ec-- ';
var unsub = ' ! ';
var result = e1
.mergeMap(function (x) { return Observable.of(x); })
.mergeAll()
.mergeMap(function (x) { return Observable.of(x); });
expectObservable(result, unsub).toBe(expected);
expectSubscriptions(x.subscriptions).toBe(xsubs);
expectSubscriptions(y.subscriptions).toBe(ysubs);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
it('should merge parallel emissions', function () {
var x = cold('----a----b----c---|');
var xsubs = ' ^ !';
var y = cold('-d----e----f---|');
var ysubs = ' ^ !';
var e1 = hot('--x--y--| ', { x: x, y: y });
var e1subs = '^ !';
var expected = '------(ad)-(be)-(cf)|';
expectObservable(e1.mergeAll()).toBe(expected);
expectSubscriptions(x.subscriptions).toBe(xsubs);
expectSubscriptions(y.subscriptions).toBe(ysubs);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
it('should merge empty and empty', function () {
var x = cold('|');
var xsubs = ' (^!) ';
var y = cold('|');
var ysubs = ' (^!)';
var e1 = hot('--x--y--|', { x: x, y: y });
var e1subs = '^ !';
var expected = '--------|';
expectObservable(e1.mergeAll()).toBe(expected);
expectSubscriptions(x.subscriptions).toBe(xsubs);
expectSubscriptions(y.subscriptions).toBe(ysubs);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
it('should merge three empties', function () {
var x = cold('|');
var xsubs = ' (^!) ';
var y = cold('|');
var ysubs = ' (^!) ';
var z = cold('|');
var zsubs = ' (^!)';
var e1 = hot('--x--y-z---|', { x: x, y: y, z: z });
var e1subs = '^ !';
var expected = '-----------|';
expectObservable(e1.mergeAll()).toBe(expected);
expectSubscriptions(x.subscriptions).toBe(xsubs);
expectSubscriptions(y.subscriptions).toBe(ysubs);
expectSubscriptions(z.subscriptions).toBe(zsubs);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
it('should merge never and empty', function () {
var x = cold('-');
var xsubs = ' ^';
var y = cold('|');
var ysubs = ' (^!)';
var e1 = hot('--x--y--|', { x: x, y: y });
var e1subs = '^ ';
var expected = '---------';
expectObservable(e1.mergeAll()).toBe(expected);
expectSubscriptions(x.subscriptions).toBe(xsubs);
expectSubscriptions(y.subscriptions).toBe(ysubs);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
it('should merge never and never', function () {
var x = cold('-');
var xsubs = ' ^';
var y = cold('-');
var ysubs = ' ^';
var e1 = hot('--x--y--|', { x: x, y: y });
var e1subs = '^ ';
var expected = '---------';
expectObservable(e1.mergeAll()).toBe(expected);
expectSubscriptions(x.subscriptions).toBe(xsubs);
expectSubscriptions(y.subscriptions).toBe(ysubs);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
it('should merge empty and throw', function () {
var x = cold('|');
var xsubs = ' (^!) ';
var y = cold('#');
var ysubs = ' (^!)';
var e1 = hot('--x--y--|', { x: x, y: y });
var e1subs = '^ ! ';
var expected = '-----# ';
expectObservable(e1.mergeAll()).toBe(expected);
expectSubscriptions(x.subscriptions).toBe(xsubs);
expectSubscriptions(y.subscriptions).toBe(ysubs);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
it('should merge never and throw', function () {
var x = cold('-');
var xsubs = ' ^ !';
var y = cold('#');
var ysubs = ' (^!)';
var e1 = hot('--x--y--|', { x: x, y: y });
var e1subs = '^ ! ';
var expected = '-----# ';
expectObservable(e1.mergeAll()).toBe(expected);
expectSubscriptions(x.subscriptions).toBe(xsubs);
expectSubscriptions(y.subscriptions).toBe(ysubs);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
it('should merge empty and eventual error', function () {
var x = cold('|');
var xsubs = ' (^!)';
var y = cold('------#');
var ysubs = ' ^ !';
var e1 = hot('--x--y--|', { x: x, y: y });
var e1subs = '^ !';
var expected = '-----------#';
expectObservable(e1.mergeAll()).toBe(expected);
expectSubscriptions(x.subscriptions).toBe(xsubs);
expectSubscriptions(y.subscriptions).toBe(ysubs);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
it('should merge never and eventual error', function () {
var x = cold('-');
var xsubs = ' ^ !';
var y = cold('------#');
var ysubs = ' ^ !';
var e1 = hot('--x--y--|', { x: x, y: y });
var e1subs = '^ !';
var expected = '-----------#';
expectObservable(e1.mergeAll()).toBe(expected);
expectSubscriptions(x.subscriptions).toBe(xsubs);
expectSubscriptions(y.subscriptions).toBe(ysubs);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
it('should take an empty source and return empty too', function () {
var e1 = cold('|');
var e1subs = '(^!)';
var expected = '|';
expectObservable(e1.mergeAll()).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
it('should take a never source and return never too', function () {
var e1 = cold('-');
var e1subs = '^';
var expected = '-';
expectObservable(e1.mergeAll()).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
it('should take a throw source and return throw too', function () {
var e1 = cold('#');
var e1subs = '(^!)';
var expected = '#';
expectObservable(e1.mergeAll()).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
it('should handle merging a hot observable of non-overlapped observables', function () {
var x = cold('a-b---------| ');
var xsubs = ' ^ ! ';
var y = cold('c-d-e-f-| ');
var ysubs = ' ^ ! ';
var z = cold('g-h-i-j-k-|');
var zsubs = ' ^ !';
var e1 = hot('--x---------y--------z--------| ', { x: x, y: y, z: z });
var e1subs = '^ !';
var expected = '--a-b-------c-d-e-f--g-h-i-j-k-|';
expectObservable(e1.mergeAll()).toBe(expected);
expectSubscriptions(x.subscriptions).toBe(xsubs);
expectSubscriptions(y.subscriptions).toBe(ysubs);
expectSubscriptions(z.subscriptions).toBe(zsubs);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
it('should raise error if inner observable raises error', function () {
var x = cold('a-b---------| ');
var xsubs = ' ^ ! ';
var y = cold('c-d-e-f-# ');
var ysubs = ' ^ ! ';
var z = cold('g-h-i-j-k-|');
var zsubs = [];
var e1 = hot('--x---------y--------z--------| ', { x: x, y: y, z: z });
var e1subs = '^ ! ';
var expected = '--a-b-------c-d-e-f-# ';
expectObservable(e1.mergeAll()).toBe(expected);
expectSubscriptions(x.subscriptions).toBe(xsubs);
expectSubscriptions(y.subscriptions).toBe(ysubs);
expectSubscriptions(z.subscriptions).toBe(zsubs);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
it('should raise error if outer observable raises error', function () {
var y = cold('a-b---------| ');
var ysubs = ' ^ ! ';
var z = cold('c-d-e-f-| ');
var zsubs = ' ^ ! ';
var e1 = hot('--y---------z---# ', { y: y, z: z });
var e1subs = '^ ! ';
var expected = '--a-b-------c-d-# ';
expectObservable(e1.mergeAll()).toBe(expected);
expectSubscriptions(y.subscriptions).toBe(ysubs);
expectSubscriptions(z.subscriptions).toBe(zsubs);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
it('should merge all promises in an observable', function (done) {
var e1 = Rx.Observable.from([
new Promise(function (res) { res('a'); }),
new Promise(function (res) { res('b'); }),
new Promise(function (res) { res('c'); }),
new Promise(function (res) { res('d'); }),
]);
var expected = ['a', 'b', 'c', 'd'];
var res = [];
e1.mergeAll().subscribe(function (x) { res.push(x); }, function (err) { done(new Error('should not be called')); }, function () {
chai_1.expect(res).to.deep.equal(expected);
done();
});
});
it('should raise error when promise rejects', function (done) {
var error = 'error';
var e1 = Rx.Observable.from([
new Promise(function (res) { res('a'); }),
new Promise(function (res, rej) { rej(error); }),
new Promise(function (res) { res('c'); }),
new Promise(function (res) { res('d'); }),
]);
var res = [];
e1.mergeAll().subscribe(function (x) { res.push(x); }, function (err) {
chai_1.expect(res.length).to.equal(1);
chai_1.expect(err).to.equal('error');
done();
}, function () { done(new Error('should not be called')); });
});
});
//# sourceMappingURL=mergeAll-spec.js.map</code></pre>
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