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<div class="content" data-ice="content"><h1 data-ice="title">spec-js/operators/windowCount-spec.js</h1>
<pre class="source-code line-number raw-source-code"><code class="prettyprint linenums" data-ice="content">"use strict";
var Rx = require('../../dist/cjs/Rx');
var Observable = Rx.Observable;
/** @test {windowCount} */
describe('Observable.prototype.windowCount', function () {
asDiagram('windowCount(3)')('should emit windows with count 3, no skip specified', function () {
var source = hot('---a---b---c---d---e---f---g---h---i---|');
var sourceSubs = '^ !';
var expected = 'x----------y-----------z-----------w---|';
var x = cold('---a---b---(c|) ');
var y = cold('----d---e---(f|) ');
var z = cold('----g---h---(i|) ');
var w = cold('----|');
var expectedValues = { x: x, y: y, z: z, w: w };
var result = source.windowCount(3);
expectObservable(result).toBe(expected, expectedValues);
expectSubscriptions(source.subscriptions).toBe(sourceSubs);
});
it('should emit windows with count 2 and skip 1', function () {
var source = hot('^-a--b--c--d--|');
var subs = '^ !';
var expected = 'u-v--x--y--z--|';
var u = cold('--a--(b|) ');
var v = cold('---b--(c|) ');
var x = cold('---c--(d|)');
var y = cold('---d--|');
var z = cold('---|');
var values = { u: u, v: v, x: x, y: y, z: z };
var result = source.windowCount(2, 1);
expectObservable(result).toBe(expected, values);
expectSubscriptions(source.subscriptions).toBe(subs);
});
it('should emit windows with count 2, and skip unspecified', function () {
var source = hot('--a--b--c--d--e--f--|');
var subs = '^ !';
var expected = 'x----y-----z-----w--|';
var x = cold('--a--(b|) ');
var y = cold('---c--(d|) ');
var z = cold('---e--(f|)');
var w = cold('---|');
var values = { x: x, y: y, z: z, w: w };
var result = source.windowCount(2);
expectObservable(result).toBe(expected, values);
expectSubscriptions(source.subscriptions).toBe(subs);
});
it('should return empty if source is empty', function () {
var source = cold('|');
var subs = '(^!)';
var expected = '(w|)';
var w = cold('|');
var values = { w: w };
var result = source.windowCount(2, 1);
expectObservable(result).toBe(expected, values);
expectSubscriptions(source.subscriptions).toBe(subs);
});
it('should return Never if source if Never', function () {
var source = cold('-');
var subs = '^';
var expected = 'w';
var w = cold('-');
var expectedValues = { w: w };
var result = source.windowCount(2, 1);
expectObservable(result).toBe(expected, expectedValues);
expectSubscriptions(source.subscriptions).toBe(subs);
});
it('should propagate error from a just-throw source', function () {
var source = cold('#');
var subs = '(^!)';
var expected = '(w#)';
var w = cold('#');
var expectedValues = { w: w };
var result = source.windowCount(2, 1);
expectObservable(result).toBe(expected, expectedValues);
expectSubscriptions(source.subscriptions).toBe(subs);
});
it('should raise error if source raises error', function () {
var source = hot('--a--b--c--d--e--f--#');
var subs = '^ !';
var expected = 'u-v--w--x--y--z--q--#';
var u = cold('--a--b--(c|) ');
var v = cold('---b--c--(d|) ');
var w = cold('---c--d--(e|) ');
var x = cold('---d--e--(f|)');
var y = cold('---e--f--#');
var z = cold('---f--#');
var q = cold('---#');
var values = { u: u, v: v, w: w, x: x, y: y, z: z, q: q };
var result = source.windowCount(3, 1);
expectObservable(result).toBe(expected, values);
expectSubscriptions(source.subscriptions).toBe(subs);
});
it('should dispose of inner windows once outer is unsubscribed early', function () {
var source = hot('^-a--b--c--d--|');
var subs = '^ ! ';
var expected = 'w-x--y--z- ';
var w = cold('--a--(b|) ');
var x = cold('---b--(c|) ');
var y = cold('---c- ');
var z = cold('-- ');
var unsub = ' ! ';
var values = { w: w, x: x, y: y, z: z };
var result = source.windowCount(2, 1);
expectObservable(result, unsub).toBe(expected, values);
expectSubscriptions(source.subscriptions).toBe(subs);
});
it('should not break unsubscription chains when result is unsubscribed explicitly', function () {
var source = hot('^-a--b--c--d--|');
var subs = '^ ! ';
var expected = 'w-x--y--z- ';
var w = cold('--a--(b|) ');
var x = cold('---b--(c|) ');
var y = cold('---c- ');
var z = cold('-- ');
var unsub = ' ! ';
var values = { w: w, x: x, y: y, z: z };
var result = source
.mergeMap(function (x) { return Observable.of(x); })
.windowCount(2, 1)
.mergeMap(function (x) { return Observable.of(x); });
expectObservable(result, unsub).toBe(expected, values);
expectSubscriptions(source.subscriptions).toBe(subs);
});
});
//# sourceMappingURL=windowCount-spec.js.map</code></pre>
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