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Edit File: takeUntil-spec.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var operators_1 = require("rxjs/operators");
var rxjs_1 = require("rxjs");
var testing_1 = require("rxjs/testing");
var observableMatcher_1 = require("../helpers/observableMatcher");
describe('takeUntil operator', function () {
    var testScheduler;
    beforeEach(function () {
        testScheduler = new testing_1.TestScheduler(observableMatcher_1.observableMatcher);
    });
    it('should take values until 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--f--g--|');
            var e1subs = '  ^------------!          ';
            var e2 = hot('  -------------z--|       ');
            var e2subs = '  ^------------!          ';
            var expected = '--a--b--c--d-|          ';
            expectObservable(e1.pipe((0, operators_1.takeUntil)(e2))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
            expectSubscriptions(e2.subscriptions).toBe(e2subs);
        });
    });
    it('should take values and raises error when notifier raises error', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('  --a--b--c--d--e--f--g--|');
            var e1subs = '  ^------------!          ';
            var e2 = hot('  -------------#          ');
            var e2subs = '  ^------------!          ';
            var expected = '--a--b--c--d-#          ';
            expectObservable(e1.pipe((0, operators_1.takeUntil)(e2))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
            expectSubscriptions(e2.subscriptions).toBe(e2subs);
        });
    });
    it('should take all values when notifier is empty', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('  --a--b--c--d--e--f--g--|');
            var e1subs = '  ^----------------------!';
            var e2 = hot('  -------------|          ');
            var e2subs = '  ^------------!          ';
            var expected = '--a--b--c--d--e--f--g--|';
            expectObservable(e1.pipe((0, operators_1.takeUntil)(e2))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
            expectSubscriptions(e2.subscriptions).toBe(e2subs);
        });
    });
    it('should take all values when notifier does not complete', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('  --a--b--c--d--e--f--g--|');
            var e1subs = '  ^----------------------!';
            var e2 = hot('  -                       ');
            var e2subs = '  ^----------------------!';
            var expected = '--a--b--c--d--e--f--g--|';
            expectObservable(e1.pipe((0, operators_1.takeUntil)(e2))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
            expectSubscriptions(e2.subscriptions).toBe(e2subs);
        });
    });
    it('should complete without subscribing to the source when notifier synchronously emits', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('  ----a--|');
            var e2 = (0, rxjs_1.of)(1, 2, 3);
            var expected = '(|)     ';
            expectObservable(e1.pipe((0, operators_1.takeUntil)(e2))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe([]);
        });
    });
    it('should subscribe to the source when notifier synchronously completes without emitting', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('  ----a--|');
            var e1subs = '  ^------!';
            var e2 = rxjs_1.EMPTY;
            var expected = '----a--|';
            expectObservable(e1.pipe((0, operators_1.takeUntil)(e2))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    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--f--g--|');
            var e1subs = '  ^------!                ';
            var e2 = hot('  -------------z--|       ');
            var e2subs = '  ^------!                ';
            var unsub = '   -------!                ';
            var expected = '--a--b--                ';
            expectObservable(e1.pipe((0, operators_1.takeUntil)(e2)), unsub).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
            expectSubscriptions(e2.subscriptions).toBe(e2subs);
        });
    });
    it('should complete when notifier emits if 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 e2 = hot('  --a--b--|');
            var e2subs = '  ^-!      ';
            var expected = '--|      ';
            expectObservable(e1.pipe((0, operators_1.takeUntil)(e2))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
            expectSubscriptions(e2.subscriptions).toBe(e2subs);
        });
    });
    it('should raise error when notifier raises error if 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 e2 = hot('  --#');
            var e2subs = '  ^-!';
            var expected = '--#';
            expectObservable(e1.pipe((0, operators_1.takeUntil)(e2))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
            expectSubscriptions(e2.subscriptions).toBe(e2subs);
        });
    });
    it('should not complete when notifier is empty if 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 e2 = hot('  --|');
            var e2subs = '  ^-!';
            var expected = '---';
            expectObservable(e1.pipe((0, operators_1.takeUntil)(e2))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
            expectSubscriptions(e2.subscriptions).toBe(e2subs);
        });
    });
    it('should not complete when source and notifier do not complete', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('  -');
            var e1subs = '  ^';
            var e2 = hot('  -');
            var e2subs = '  ^';
            var expected = '-';
            expectObservable(e1.pipe((0, operators_1.takeUntil)(e2))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
            expectSubscriptions(e2.subscriptions).toBe(e2subs);
        });
    });
    it('should complete when notifier emits before source observable emits', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('  ----a--|');
            var e1subs = '  ^-!     ';
            var e2 = hot('  --x     ');
            var e2subs = '  ^-!     ';
            var expected = '--|     ';
            expectObservable(e1.pipe((0, operators_1.takeUntil)(e2))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
            expectSubscriptions(e2.subscriptions).toBe(e2subs);
        });
    });
    it('should raise error if source raises error before notifier emits', 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 e2 = hot('  ----------------a--|');
            var e2subs = '  ^-------------!     ';
            var expected = '--a--b--c--d--#     ';
            expectObservable(e1.pipe((0, operators_1.takeUntil)(e2))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
            expectSubscriptions(e2.subscriptions).toBe(e2subs);
        });
    });
    it('should raise error immediately if source throws', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, cold = _a.cold, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = cold(' #   ');
            var e1subs = '  (^!)';
            var e2 = hot('  --x ');
            var e2subs = '  (^!)';
            var expected = '#   ';
            expectObservable(e1.pipe((0, operators_1.takeUntil)(e2))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
            expectSubscriptions(e2.subscriptions).toBe(e2subs);
        });
    });
    it('should dispose source observable if notifier emits before source emits', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('  ---a---|');
            var e1subs = '  ^-!     ';
            var e2 = hot('  --x-|   ');
            var e2subs = '  ^-!     ';
            var expected = '--|     ';
            expectObservable(e1.pipe((0, operators_1.takeUntil)(e2))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
            expectSubscriptions(e2.subscriptions).toBe(e2subs);
        });
    });
    it('should dispose notifier if source observable completes', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('  --a--|     ');
            var e1subs = '  ^----!     ';
            var e2 = hot('  -------x--|');
            var e2subs = '  ^----!     ';
            var expected = '--a--|     ';
            expectObservable(e1.pipe((0, operators_1.takeUntil)(e2))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
            expectSubscriptions(e2.subscriptions).toBe(e2subs);
        });
    });
    it('should not break unsubscription chain when 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--f--g--|');
            var e1subs = '  ^------!                ';
            var e2 = hot('  -------------z--|       ');
            var e2subs = '  ^------!                ';
            var unsub = '   -------!                ';
            var expected = '--a--b--                ';
            var result = e1.pipe((0, operators_1.mergeMap)(function (x) { return (0, rxjs_1.of)(x); }), (0, operators_1.takeUntil)(e2), (0, operators_1.mergeMap)(function (x) { return (0, rxjs_1.of)(x); }));
            expectObservable(result, unsub).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
            expectSubscriptions(e2.subscriptions).toBe(e2subs);
        });
    });
});
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