@reactivex/rxjs
Version:
Reactive Extensions for modern JavaScript
370 lines • 19.6 kB
JavaScript
"use strict";
var chai_1 = require('chai');
var Rx = require('../../dist/cjs/Rx');
var Observable = Rx.Observable;
/** @test {windowToggle} */
describe('Observable.prototype.windowToggle', function () {
asDiagram('windowToggle')('should emit windows governed by openings and closings', function () {
var source = hot('--1--2--^-a--b--c--d--e--f--g--h-|');
var subs = '^ !';
var e2 = cold('----w--------w--------w--|');
var e2subs = '^ !';
var e3 = cold('-----| ');
// -----(c|)
// -----(c|)
var e3subs = [' ^ ! ',
' ^ ! ',
' ^ !'];
var expected = '----x--------y--------z--|';
var x = cold('-b--c| ');
var y = cold('-e--f| ');
var z = cold('-h-|');
var values = { x: x, y: y, z: z };
var result = source.windowToggle(e2, function () { return e3; });
expectObservable(result).toBe(expected, values);
expectSubscriptions(source.subscriptions).toBe(subs);
expectSubscriptions(e2.subscriptions).toBe(e2subs);
expectSubscriptions(e3.subscriptions).toBe(e3subs);
});
it('should emit windows that are opened by an observable from the first argument ' +
'and closed by an observable returned by the function in the second argument', function () {
var e1 = hot('--1--2--^--a--b--c--d--e--f--g--h--|');
var e1subs = '^ !';
var e2 = cold('--------x-------x-------x--|');
var e2subs = '^ !';
var e3 = cold('----------(x|) ');
// ----------(x|)
// ----------(x|)
var e3subs = [' ^ ! ',
' ^ ! ',
' ^ !'];
var expected = '--------x-------y-------z--|';
var x = cold('-c--d--e--(f|) ');
var y = cold('--f--g--h-| ');
var z = cold('---|');
var values = { x: x, y: y, z: z };
var source = e1.windowToggle(e2, function (value) {
chai_1.expect(value).to.equal('x');
return e3;
});
expectObservable(source).toBe(expected, values);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
expectSubscriptions(e2.subscriptions).toBe(e2subs);
expectSubscriptions(e3.subscriptions).toBe(e3subs);
});
it('should emit windows using constying cold closings', function () {
var e1 = hot('--a--^---b---c---d---e---f---g---h------| ');
var e1subs = '^ ! ';
var e2 = cold('--x-----------y--------z---| ');
var e2subs = '^ ! ';
var close = [
cold('---------------s--| '),
cold('----(s|) '),
cold('---------------(s|)')];
var closeSubs = [' ^ ! ',
' ^ ! ',
' ^ ! '];
var expected = '--x-----------y--------z-----------| ';
var x = cold('--b---c---d---e| ');
var y = cold('--e-| ');
var z = cold('-g---h------| ');
var values = { x: x, y: y, z: z };
var i = 0;
var result = e1.windowToggle(e2, function () { return close[i++]; });
expectObservable(result).toBe(expected, values);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
expectSubscriptions(e2.subscriptions).toBe(e2subs);
expectSubscriptions(close[0].subscriptions).toBe(closeSubs[0]);
expectSubscriptions(close[1].subscriptions).toBe(closeSubs[1]);
expectSubscriptions(close[2].subscriptions).toBe(closeSubs[2]);
});
it('should emit windows using constying hot closings', function () {
var e1 = hot('--a--^---b---c---d---e---f---g---h------| ');
var e1subs = '^ ! ';
var e2 = cold('--x-----------y--------z---| ');
var e2subs = '^ ! ';
var closings = [
{ obs: hot('-1--^----------------s-| '),
sub: ' ^ ! ' },
{ obs: hot('-----3----4-------(s|) '),
sub: ' ^ ! ' },
{ obs: hot('-------3----4-------5----------------s|'),
sub: ' ^ ! ' }]; // eslint-disable-line key-spacing
var expected = '--x-----------y--------z-----------| ';
var x = cold('--b---c---d---e| ');
var y = cold('--e-| ');
var z = cold('-g---h------| ');
var values = { x: x, y: y, z: z };
var i = 0;
var result = e1.windowToggle(e2, function () { return closings[i++].obs; });
expectObservable(result).toBe(expected, values);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
expectSubscriptions(e2.subscriptions).toBe(e2subs);
expectSubscriptions(closings[0].obs.subscriptions).toBe(closings[0].sub);
expectSubscriptions(closings[1].obs.subscriptions).toBe(closings[1].sub);
expectSubscriptions(closings[2].obs.subscriptions).toBe(closings[2].sub);
});
it('should emit windows using constying empty delayed closings', function () {
var e1 = hot('--a--^---b---c---d---e---f---g---h------| ');
var e1subs = '^ ! ';
var e2 = cold('--x-----------y--------z---| ');
var e2subs = '^ ! ';
var close = [cold('---------------| '),
cold('----| '),
cold('---------------|')];
var expected = '--x-----------y--------z-----------| ';
var x = cold('--b---c---d---e| ');
var y = cold('--e-| ');
var z = cold('-g---h------| ');
var values = { x: x, y: y, z: z };
var i = 0;
var result = e1.windowToggle(e2, function () { return close[i++]; });
expectObservable(result).toBe(expected, values);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
expectSubscriptions(e2.subscriptions).toBe(e2subs);
});
it('should emit windows using constying cold closings, outer unsubscribed early', function () {
var e1 = hot('--a--^---b---c---d---e---f---g---h------| ');
var e1subs = '^ ! ';
var e2 = cold('--x-----------y--------z---| ');
var e2subs = '^ ! ';
var close = [cold('-------------s---| '),
cold('-----(s|) '),
cold('---------------(s|)')];
var closeSubs = [' ^ ! ',
' ^ ! '];
var expected = '--x-----------y--- ';
var x = cold('--b---c---d--| ');
var y = cold('--e- ');
var unsub = ' ! ';
var values = { x: x, y: y };
var i = 0;
var result = e1.windowToggle(e2, function () { return close[i++]; });
expectObservable(result, unsub).toBe(expected, values);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
expectSubscriptions(e2.subscriptions).toBe(e2subs);
expectSubscriptions(close[0].subscriptions).toBe(closeSubs[0]);
expectSubscriptions(close[1].subscriptions).toBe(closeSubs[1]);
expectSubscriptions(close[2].subscriptions).toBe([]);
});
it('should not break unsubscription chains when result is unsubscribed explicitly', function () {
var e1 = hot('--a--^---b---c---d---e---f---g---h------| ');
var e1subs = '^ ! ';
var e2 = cold('--x-----------y--------z---| ');
var e2subs = '^ ! ';
var close = [cold('---------------s--| '),
cold('----(s|) '),
cold('---------------(s|)')];
var closeSubs = [' ^ ! ',
' ^! '];
var expected = '--x-----------y- ';
var x = cold('--b---c---d--- ');
var y = cold('-- ');
var unsub = ' ! ';
var values = { x: x, y: y };
var i = 0;
var result = e1
.mergeMap(function (x) { return Observable.of(x); })
.windowToggle(e2, function () { return close[i++]; })
.mergeMap(function (x) { return Observable.of(x); });
expectObservable(result, unsub).toBe(expected, values);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
expectSubscriptions(e2.subscriptions).toBe(e2subs);
expectSubscriptions(close[0].subscriptions).toBe(closeSubs[0]);
expectSubscriptions(close[1].subscriptions).toBe(closeSubs[1]);
});
it('should dispose window Subjects if the outer is unsubscribed early', function () {
var source = hot('--a--b--c--d--e--f--g--h--|');
var open = cold('o-------------------------|');
var sourceSubs = '^ ! ';
var expected = 'x--------- ';
var x = cold('--a--b--c- ');
var unsub = ' ! ';
var late = time('---------------| ');
var values = { x: x };
var window;
var result = source
.windowToggle(open, function () { return Observable.never(); })
.do(function (w) { window = w; });
expectObservable(result, unsub).toBe(expected, values);
expectSubscriptions(source.subscriptions).toBe(sourceSubs);
rxTestScheduler.schedule(function () {
chai_1.expect(function () {
window.subscribe();
}).to.throw(Rx.ObjectUnsubscribedError);
}, late);
});
it('should propagate error thrown from closingSelector', function () {
var e1 = hot('--a--^---b---c---d---e---f---g---h------| ');
var e1subs = '^ ! ';
var e2 = cold('--x-----------y--------z---| ');
var e2subs = '^ ! ';
var close = [cold('---------------s--| '),
cold('----(s|) '),
cold('---------------(s|)')];
var expected = '--x-----------#---- ';
var x = cold('--b---c---d-# ');
var values = { x: x };
var i = 0;
var result = e1.windowToggle(e2, function () {
if (i === 1) {
throw 'error';
}
return close[i++];
});
expectObservable(result).toBe(expected, values);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
expectSubscriptions(e2.subscriptions).toBe(e2subs);
});
it('should propagate error emitted from a closing', function () {
var e1 = hot('--a--^---b---c---d---e---f---g---h------|');
var e1subs = '^ ! ';
var e2 = cold('--x-----------y--------z---| ');
var e2subs = '^ ! ';
var close = [cold('---------------s--| '),
cold('# ')];
var expected = '--x-----------(y#) ';
var x = cold('--b---c---d-# ');
var y = cold('# ');
var values = { x: x, y: y };
var i = 0;
var result = e1.windowToggle(e2, function () { return close[i++]; });
expectObservable(result).toBe(expected, values);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
expectSubscriptions(e2.subscriptions).toBe(e2subs);
});
it('should propagate error emitted late from a closing', function () {
var e1 = hot('--a--^---b---c---d---e---f---g---h------|');
var e1subs = '^ ! ';
var e2 = cold('--x-----------y--------z---| ');
var e2subs = '^ ! ';
var close = [cold('---------------s--| '),
cold('-----# ')];
var expected = '--x-----------y----# ';
var x = cold('--b---c---d---e| ');
var y = cold('--e--# ');
var values = { x: x, y: y };
var i = 0;
var result = e1.windowToggle(e2, function () { return close[i++]; });
expectObservable(result).toBe(expected, values);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
expectSubscriptions(e2.subscriptions).toBe(e2subs);
});
it('should handle errors', function () {
var e1 = hot('--a--^---b---c---d---e--# ');
var e1subs = '^ ! ';
var e2 = cold('--x-----------y--------z---| ');
var e2subs = '^ ! ';
var close = [cold('---------------s--| '),
cold('-------s| ')];
var expected = '--x-----------y----# ';
var x = cold('--b---c---d---e| ');
var y = cold('--e--# ');
var values = { x: x, y: y };
var i = 0;
var result = e1.windowToggle(e2, function () { return close[i++]; });
expectObservable(result).toBe(expected, values);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
expectSubscriptions(e2.subscriptions).toBe(e2subs);
});
it('should handle empty source', function () {
var e1 = cold('|');
var e1subs = '(^!)';
var e2 = cold('--o-----|');
var e2subs = '(^!)';
var e3 = cold('-----c--|');
var expected = '|';
var result = e1.windowToggle(e2, function () { return e3; });
expectObservable(result).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
expectSubscriptions(e2.subscriptions).toBe(e2subs);
});
it('should handle throw', function () {
var e1 = cold('#');
var e1subs = '(^!)';
var e2 = cold('--o-----|');
var e2subs = '(^!)';
var e3 = cold('-----c--|');
var expected = '#';
var result = e1.windowToggle(e2, function () { return e3; });
expectObservable(result).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
expectSubscriptions(e2.subscriptions).toBe(e2subs);
});
it('should handle never', function () {
var e1 = hot('-');
var e1subs = '^ !';
var e2 = cold('--o-----o------o-----o---o-----| ');
var e2subs = '^ ! ';
var e3 = cold('--c-| ');
var expected = '--u-----v------x-----y---z-------------------';
var u = cold('--| ');
var v = cold('--| ');
var x = cold('--| ');
var y = cold('--| ');
var z = cold('--| ');
var unsub = ' !';
var values = { u: u, v: v, x: x, y: y, z: z };
var result = e1.windowToggle(e2, function () { return e3; });
expectObservable(result, unsub).toBe(expected, values);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
expectSubscriptions(e2.subscriptions).toBe(e2subs);
});
it('should handle a never opening Observable', function () {
var e1 = hot('--a--^---b---c---d---e---f---g---h------|');
var e1subs = '^ !';
var e2 = cold('-');
var e2subs = '^ !';
var e3 = cold('--c-| ');
var expected = '-----------------------------------|';
var result = e1.windowToggle(e2, function () { return e3; });
expectObservable(result).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
expectSubscriptions(e2.subscriptions).toBe(e2subs);
});
it('should handle a never closing Observable', function () {
var e1 = hot('--a--^---b---c---d---e---f---g---h------|');
var e1subs = '^ !';
var e2 = cold('---o---------------o-----------| ');
var e2subs = '^ ! ';
var e3 = cold('-');
var expected = '---x---------------y---------------|';
var x = cold('-b---c---d---e---f---g---h------|');
var y = cold('-f---g---h------|');
var values = { x: x, y: y };
var result = e1.windowToggle(e2, function () { return e3; });
expectObservable(result).toBe(expected, values);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
expectSubscriptions(e2.subscriptions).toBe(e2subs);
});
it('should handle opening Observable that just throws', function () {
var e1 = hot('--a--^---b---c---d---e---f---g---h------|');
var e1subs = '(^!)';
var e2 = cold('#');
var e2subs = '(^!)';
var e3 = cold('--c-|');
var subs = '(^!)';
var expected = '#';
var result = e1.windowToggle(e2, function () { return e3; });
expectObservable(result).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(subs);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
expectSubscriptions(e2.subscriptions).toBe(e2subs);
});
it('should handle empty closing observable', function () {
var e1 = hot('--a--^---b---c---d---e---f---g---h------|');
var e1subs = '^ !';
var e2 = cold('---o---------------o-----------| ');
var e2subs = '^ ! ';
var e3 = Observable.empty();
var expected = '---x---------------y---------------|';
var x = cold('|');
var y = cold('|');
var values = { x: x, y: y };
var result = e1.windowToggle(e2, function () { return e3; });
expectObservable(result).toBe(expected, values);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
expectSubscriptions(e2.subscriptions).toBe(e2subs);
});
});
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