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Edit File: bufferCount-spec.js
"use strict"; Object.defineProperty(exports, "__esModule", { value: true }); var chai_1 = require("chai"); var rxjs_1 = require("rxjs"); var operators_1 = require("rxjs/operators"); var testing_1 = require("rxjs/testing"); var observableMatcher_1 = require("../helpers/observableMatcher"); describe('bufferCount operator', function () { var testScheduler; beforeEach(function () { testScheduler = new testing_1.TestScheduler(observableMatcher_1.observableMatcher); }); it('should emit buffers at intervals', function () { testScheduler.run(function (_a) { var hot = _a.hot, expectObservable = _a.expectObservable; var values = { v: ['a', 'b', 'c'], w: ['c', 'd', 'e'], x: ['e', 'f', 'g'], y: ['g', 'h', 'i'], z: ['i'], }; var e1 = hot(' --a--b--c--d--e--f--g--h--i--|'); var expected = '--------v-----w-----x-----y--(z|)'; expectObservable(e1.pipe((0, operators_1.bufferCount)(3, 2))).toBe(expected, values); }); }); it('should emit buffers at buffersize of intervals if not specified', function () { testScheduler.run(function (_a) { var hot = _a.hot, expectObservable = _a.expectObservable; var values = { x: ['a', 'b'], y: ['c', 'd'], z: ['e', 'f'], }; var e1 = hot(' --a--b--c--d--e--f--|'); var expected = '-----x-----y-----z--|'; expectObservable(e1.pipe((0, operators_1.bufferCount)(2))).toBe(expected, values); }); }); it('should buffer properly (issue #2062)', function () { var item$ = new rxjs_1.Subject(); var results = []; item$.pipe((0, operators_1.bufferCount)(3, 1)).subscribe(function (value) { results.push(value); if (value.join() === '1,2,3') { item$.next(4); } }); item$.next(1); item$.next(2); item$.next(3); (0, chai_1.expect)(results).to.deep.equal([ [1, 2, 3], [2, 3, 4], ]); }); it('should emit partial buffers if source completes before reaching specified buffer count', function () { testScheduler.run(function (_a) { var hot = _a.hot, expectObservable = _a.expectObservable; var e1 = hot(' --a--b--c--d--|'); var expected = '--------------(x|)'; expectObservable(e1.pipe((0, operators_1.bufferCount)(5))).toBe(expected, { x: ['a', 'b', 'c', 'd'] }); }); }); it('should emit full buffer then last partial buffer if source completes', function () { testScheduler.run(function (_a) { var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions; var e1 = hot(' --a^-b--c--d--e--|'); var e1subs = ' ^-------------!'; var expected = ' --------y-----(z|)'; expectObservable(e1.pipe((0, operators_1.bufferCount)(3))).toBe(expected, { y: ['b', 'c', 'd'], z: ['e'] }); expectSubscriptions(e1.subscriptions).toBe(e1subs); }); }); it('should emit buffers at intervals, but stop when result is unsubscribed early', function () { testScheduler.run(function (_a) { var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions; var values = { v: ['a', 'b', 'c'], w: ['c', 'd', 'e'], }; var e1 = hot(' --a--b--c--d--e--f--g--h--i--|'); var unsub = ' ------------------! '; var subs = ' ^-----------------! '; var expected = '--------v-----w---- '; expectObservable(e1.pipe((0, operators_1.bufferCount)(3, 2)), unsub).toBe(expected, values); expectSubscriptions(e1.subscriptions).toBe(subs); }); }); it('should not break unsubscription chains when result is unsubscribed explicitly', function () { testScheduler.run(function (_a) { var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions; var values = { v: ['a', 'b', 'c'], w: ['c', 'd', 'e'], }; var e1 = hot(' --a--b--c--d--e--f--g--h--i--|'); var subs = ' ^-----------------! '; var expected = '--------v-----w---- '; var unsub = ' ------------------! '; var result = e1.pipe((0, operators_1.mergeMap)(function (x) { return (0, rxjs_1.of)(x); }), (0, operators_1.bufferCount)(3, 2), (0, operators_1.mergeMap)(function (x) { return (0, rxjs_1.of)(x); })); expectObservable(result, unsub).toBe(expected, values); expectSubscriptions(e1.subscriptions).toBe(subs); }); }); it('should raise error if source raise error before reaching specified buffer count', function () { testScheduler.run(function (_a) { var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions; var e1 = hot(' --a--b--c--d--#'); var e1subs = ' ^-------------!'; var expected = '--------------#'; expectObservable(e1.pipe((0, operators_1.bufferCount)(5))).toBe(expected); expectSubscriptions(e1.subscriptions).toBe(e1subs); }); }); it('should emit buffers with specified skip count when skip count is less than window count', function () { testScheduler.run(function (_a) { var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions; var values = { v: ['a', 'b', 'c'], w: ['b', 'c', 'd'], x: ['c', 'd', 'e'], y: ['d', 'e'], z: ['e'], }; var e1 = hot(' --a--b--c--d--e--|'); var e1subs = ' ^----------------!'; var expected = '--------v--w--x--(yz|)'; expectObservable(e1.pipe((0, operators_1.bufferCount)(3, 1))).toBe(expected, values); expectSubscriptions(e1.subscriptions).toBe(e1subs); }); }); it('should emit buffers with specified skip count when skip count is more than window count', function () { testScheduler.run(function (_a) { var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions; var e1 = hot('--a--b--c--d--e--|'); var e1subs = ' ^----------------!'; var expected = '-----y--------z--|'; var values = { y: ['a', 'b'], z: ['d', 'e'], }; expectObservable(e1.pipe((0, operators_1.bufferCount)(2, 3))).toBe(expected, values); expectSubscriptions(e1.subscriptions).toBe(e1subs); }); }); it('should stop listening to a synchronous observable when unsubscribed', function () { var sideEffects = []; var synchronousObservable = new rxjs_1.Observable(function (subscriber) { for (var i = 0; !subscriber.closed && i < 10; i++) { sideEffects.push(i); subscriber.next(i); } }); synchronousObservable.pipe((0, operators_1.bufferCount)(1), (0, operators_1.take)(3)).subscribe(function () { }); (0, chai_1.expect)(sideEffects).to.deep.equal([0, 1, 2]); }); }); //# sourceMappingURL=bufferCount-spec.js.map