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Edit File: skipUntil-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 interop_helper_1 = require("../helpers/interop-helper");
var testing_1 = require("rxjs/testing");
var observableMatcher_1 = require("../helpers/observableMatcher");
describe('skipUntil', function () {
    var testScheduler;
    beforeEach(function () {
        testScheduler = new testing_1.TestScheduler(observableMatcher_1.observableMatcher);
    });
    it('should skip values until another observable notifies', 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 skip = hot('  ---------x------|   ');
            var skipSubs = '  ^--------!          ';
            var expected = '  -----------d--e----|';
            expectObservable(e1.pipe((0, operators_1.skipUntil)(skip))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
            expectSubscriptions(skip.subscriptions).toBe(skipSubs);
        });
    });
    it('should emit elements after notifier emits', 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 skip = hot('  ---------x----|   ');
            var skipSubs = '  ^--------!        ';
            var expected = '  -----------d--e--|';
            expectObservable(e1.pipe((0, operators_1.skipUntil)(skip))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
            expectSubscriptions(skip.subscriptions).toBe(skipSubs);
        });
    });
    it('should emit elements after a synchronous notifier emits', function () {
        var values = [];
        (0, rxjs_1.of)('a', 'b')
            .pipe((0, operators_1.skipUntil)((0, rxjs_1.of)('x')))
            .subscribe({
            next: function (value) {
                values.push(value);
            },
            error: function (err) {
                throw err;
            },
            complete: function () {
                (0, chai_1.expect)(values).to.deep.equal(['a', 'b']);
            },
        });
    });
    it('should raise an error if notifier throws and source is hot', 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 skip = hot('-------------#    ');
            var skipSubs = '^------------!    ';
            var expected = '-------------#    ';
            expectObservable(e1.pipe((0, operators_1.skipUntil)(skip))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
            expectSubscriptions(skip.subscriptions).toBe(skipSubs);
        });
    });
    it('should skip all elements when notifier does not emit and completes early', 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 skip = hot('------------|     ');
            var skipSubs = '^-----------!     ';
            var expected = '-----------------|';
            expectObservable(e1.pipe((0, operators_1.skipUntil)(skip))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
            expectSubscriptions(skip.subscriptions).toBe(skipSubs);
        });
    });
    it('should allow unsubscribing explicitly and early', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('    --a--b--c--d--e----|');
            var unsub = '     ---------!          ';
            var e1subs = '    ^--------!          ';
            var skip = hot('  -------------x--|   ');
            var skipSubs = '  ^--------!          ';
            var expected = '  ----------          ';
            expectObservable(e1.pipe((0, operators_1.skipUntil)(skip)), unsub).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
            expectSubscriptions(skip.subscriptions).toBe(skipSubs);
        });
    });
    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 e1 = hot('    --a--b--c--d--e----|');
            var e1subs = '    ^--------!          ';
            var skip = hot('  -------------x--|   ');
            var skipSubs = '  ^--------!          ';
            var expected = '  ----------          ';
            var unsub = '     ---------!          ';
            var result = e1.pipe((0, operators_1.mergeMap)(function (x) { return (0, rxjs_1.of)(x); }), (0, operators_1.skipUntil)(skip), (0, operators_1.mergeMap)(function (x) { return (0, rxjs_1.of)(x); }));
            expectObservable(result, unsub).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
            expectSubscriptions(skip.subscriptions).toBe(skipSubs);
        });
    });
    it('should not break unsubscription chains with interop inners when result is unsubscribed explicitly', 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 skip = hot('  -------------x--|   ');
            var skipSubs = '  ^--------!          ';
            var expected = '  ----------          ';
            var unsub = '     ---------!          ';
            var result = e1.pipe((0, operators_1.mergeMap)(function (x) { return (0, rxjs_1.of)(x); }), (0, operators_1.skipUntil)((0, interop_helper_1.asInteropObservable)(skip)), (0, operators_1.mergeMap)(function (x) { return (0, rxjs_1.of)(x); }));
            expectObservable(result, unsub).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
            expectSubscriptions(skip.subscriptions).toBe(skipSubs);
        });
    });
    it('should skip all elements when notifier is empty', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('   --a--b--c--d--e--|');
            var e1subs = '   ^----------------!';
            var skip = cold('|                 ');
            var skipSubs = ' (^!)              ';
            var expected = ' -----------------|';
            expectObservable(e1.pipe((0, operators_1.skipUntil)(skip))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
            expectSubscriptions(skip.subscriptions).toBe(skipSubs);
        });
    });
    it('should keep subscription to source, to wait for its eventual completion', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('  ------------------------------|');
            var e1subs = '  ^-----------------------------!';
            var skip = hot('-------|                       ');
            var skipSubs = '^------!                       ';
            var expected = '------------------------------|';
            expectObservable(e1.pipe((0, operators_1.skipUntil)(skip))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
            expectSubscriptions(skip.subscriptions).toBe(skipSubs);
        });
    });
    it('should not complete if hot source observable does not complete', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('  -                ');
            var e1subs = '  ^                ';
            var skip = hot('-------------x--|');
            var skipSubs = '^------------!   ';
            var expected = '-                ';
            expectObservable(e1.pipe((0, operators_1.skipUntil)(skip))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
            expectSubscriptions(skip.subscriptions).toBe(skipSubs);
        });
    });
    it('should not complete if cold source observable never completes', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = cold(' -                ');
            var e1subs = '  ^                ';
            var skip = hot('-------------x--|');
            var skipSubs = '^------------!   ';
            var expected = '-                ';
            expectObservable(e1.pipe((0, operators_1.skipUntil)(skip))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
            expectSubscriptions(skip.subscriptions).toBe(skipSubs);
        });
    });
    it('should raise error if cold source is never and notifier errors', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = cold(' -             ');
            var e1subs = '  ^------------!';
            var skip = hot('-------------#');
            var skipSubs = '^------------!';
            var expected = '-------------#';
            expectObservable(e1.pipe((0, operators_1.skipUntil)(skip))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
            expectSubscriptions(skip.subscriptions).toBe(skipSubs);
        });
    });
    it('should skip all elements and complete if notifier is cold never', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('   --a--b--c--d--e--|');
            var e1subs = '   ^----------------!';
            var skip = cold('-                 ');
            var skipSubs = ' ^----------------!';
            var expected = ' -----------------|';
            expectObservable(e1.pipe((0, operators_1.skipUntil)(skip))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
            expectSubscriptions(skip.subscriptions).toBe(skipSubs);
        });
    });
    it('should skip all elements and complete if notifier is a hot never', 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 skip = hot('-                 ');
            var skipSubs = '^----------------!';
            var expected = '-----------------|';
            expectObservable(e1.pipe((0, operators_1.skipUntil)(skip))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
            expectSubscriptions(skip.subscriptions).toBe(skipSubs);
        });
    });
    it('should skip all elements and complete, even if notifier would not complete until later', 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 skip = hot('^-----------------------|');
            var skipSubs = '^----------------!       ';
            var expected = '-----------------|       ';
            expectObservable(e1.pipe((0, operators_1.skipUntil)(skip))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
            expectSubscriptions(skip.subscriptions).toBe(skipSubs);
        });
    });
    it('should not complete if source does not complete if notifier completes without emission', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('  -              ');
            var e1subs = '  ^              ';
            var skip = hot('--------------|');
            var skipSubs = '^-------------!';
            var expected = '-              ';
            expectObservable(e1.pipe((0, operators_1.skipUntil)(skip))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
            expectSubscriptions(skip.subscriptions).toBe(skipSubs);
        });
    });
    it('should not complete if source and notifier are both hot never', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('  -');
            var e1subs = '  ^';
            var skip = hot('-');
            var skipSubs = '^';
            var expected = '-';
            expectObservable(e1.pipe((0, operators_1.skipUntil)(skip))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
            expectSubscriptions(skip.subscriptions).toBe(skipSubs);
        });
    });
    it('should skip all elements if notifier is unsubscribed explicitly before the notifier emits', 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 skip = new rxjs_1.Subject();
            var expected = '-----------------|';
            e1.subscribe(function (x) {
                if (x === 'd' && !skip.closed) {
                    skip.next('x');
                }
                skip.unsubscribe();
            });
            expectObservable(e1.pipe((0, operators_1.skipUntil)(skip))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should unsubscribe the notifier after its first nexted value', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var source = hot('  -^-o---o---o---o---o---o---|');
            var notifier = hot('-^--------n--n--n--n--n--n-|');
            var nSubs = '        ^--------!                 ';
            var expected = '    -^---------o---o---o---o---|';
            var result = source.pipe((0, operators_1.skipUntil)(notifier));
            expectObservable(result).toBe(expected);
            expectSubscriptions(notifier.subscriptions).toBe(nSubs);
        });
    });
    it('should stop listening to a synchronous notifier after its first nexted value', function () {
        var sideEffects = [];
        var synchronousNotifier = (0, rxjs_1.concat)((0, rxjs_1.defer)(function () {
            sideEffects.push(1);
            return (0, rxjs_1.of)(1);
        }), (0, rxjs_1.defer)(function () {
            sideEffects.push(2);
            return (0, rxjs_1.of)(2);
        }), (0, rxjs_1.defer)(function () {
            sideEffects.push(3);
            return (0, rxjs_1.of)(3);
        }));
        (0, rxjs_1.of)(null)
            .pipe((0, operators_1.skipUntil)(synchronousNotifier))
            .subscribe(function () {
        });
        (0, chai_1.expect)(sideEffects).to.deep.equal([1]);
    });
    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.skipUntil)((0, rxjs_1.of)(0)), (0, operators_1.take)(3)).subscribe(function () {
        });
        (0, chai_1.expect)(sideEffects).to.deep.equal([0, 1, 2]);
    });
});
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