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Edit File: dematerialize-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('dematerialize', function () {
    var testScheduler;
    beforeEach(function () {
        testScheduler = new testing_1.TestScheduler(observableMatcher_1.observableMatcher);
    });
    it('should dematerialize an Observable', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var values = {
                a: '{x}',
                b: '{y}',
                c: '{z}',
                d: '|',
            };
            var e1 = hot('  --a--b--c--d-|', values);
            var e1subs = '  ^----------!  ';
            var expected = '--x--y--z--|  ';
            var result = e1.pipe((0, operators_1.map)(function (x) {
                if (x === '|') {
                    return rxjs_1.Notification.createComplete();
                }
                else {
                    return rxjs_1.Notification.createNext(x.replace('{', '').replace('}', ''));
                }
            }), (0, operators_1.dematerialize)());
            expectObservable(result).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should dematerialize a happy stream', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var values = {
                a: rxjs_1.Notification.createNext('w'),
                b: rxjs_1.Notification.createNext('x'),
                c: rxjs_1.Notification.createNext('y'),
                d: rxjs_1.Notification.createComplete(),
            };
            var e1 = hot('  --a--b--c--d--|', values);
            var e1subs = '  ^----------!   ';
            var expected = '--w--x--y--|   ';
            expectObservable(e1.pipe((0, operators_1.dematerialize)())).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should dematerialize a sad stream', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var values = {
                a: rxjs_1.Notification.createNext('w'),
                b: rxjs_1.Notification.createNext('x'),
                c: rxjs_1.Notification.createNext('y'),
                d: rxjs_1.Notification.createError('error'),
            };
            var e1 = hot('  --a--b--c--d--|', values);
            var e1subs = '  ^----------!   ';
            var expected = '--w--x--y--#   ';
            expectObservable(e1.pipe((0, operators_1.dematerialize)())).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should dematerialize stream does not completes', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('------');
            var e1subs = '                             ^';
            var expected = '                           -';
            expectObservable(e1.pipe((0, operators_1.dematerialize)())).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should dematerialize stream never completes', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = cold('-');
            var e1subs = '                              ^';
            var expected = '                            -';
            expectObservable(e1.pipe((0, operators_1.dematerialize)())).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should dematerialize stream does not emit', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('----|');
            var e1subs = '                             ^---!';
            var expected = '                           ----|';
            expectObservable(e1.pipe((0, operators_1.dematerialize)())).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should dematerialize empty stream', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = cold('|   ');
            var e1subs = '                              (^!)';
            var expected = '                            |   ';
            expectObservable(e1.pipe((0, operators_1.dematerialize)())).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should dematerialize stream throws', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var error = 'error';
            var e1 = hot('  (x|)', { x: rxjs_1.Notification.createError(error) });
            var e1subs = '  (^!)';
            var expected = '#   ';
            expectObservable(e1.pipe((0, operators_1.dematerialize)())).toBe(expected, null, error);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should allow unsubscribing early and explicitly', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var values = {
                a: rxjs_1.Notification.createNext('w'),
                b: rxjs_1.Notification.createNext('x'),
            };
            var e1 = hot('  --a--b--c--d--|', values);
            var e1subs = '  ^------!       ';
            var expected = '--w--x--       ';
            var unsub = '   -------!       ';
            var result = e1.pipe((0, operators_1.dematerialize)());
            expectObservable(result, unsub).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should not break unsubscription chains when unsubscribed explicitly', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var values = {
                a: rxjs_1.Notification.createNext('w'),
                b: rxjs_1.Notification.createNext('x'),
            };
            var e1 = hot('  --a--b--c--d--|', values);
            var e1subs = '  ^------!       ';
            var expected = '--w--x--       ';
            var unsub = '   -------!       ';
            var result = e1.pipe((0, operators_1.mergeMap)(function (x) { return (0, rxjs_1.of)(x); }), (0, operators_1.dematerialize)(), (0, operators_1.mergeMap)(function (x) { return (0, rxjs_1.of)(x); }));
            expectObservable(result, unsub).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should dematerialize and completes when stream completes with complete notification', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('  ----(a|)', { a: rxjs_1.Notification.createComplete() });
            var e1subs = '  ^---!   ';
            var expected = '----|   ';
            expectObservable(e1.pipe((0, operators_1.dematerialize)())).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should dematerialize and completes when stream emits complete notification', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('  ----a--|', { a: rxjs_1.Notification.createComplete() });
            var e1subs = '  ^---!   ';
            var expected = '----|   ';
            expectObservable(e1.pipe((0, operators_1.dematerialize)())).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should work with materialize', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('  ----a--b---c---d---e----f--|');
            var e1subs = '  ^--------------------------!';
            var expected = '----a--b---c---d---e----f--|';
            var result = e1.pipe((0, operators_1.materialize)(), (0, operators_1.dematerialize)());
            expectObservable(result).toBe(expected);
            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.materialize)(), (0, operators_1.dematerialize)(), (0, operators_1.take)(3)).subscribe(function () {
        });
        (0, chai_1.expect)(sideEffects).to.deep.equal([0, 1, 2]);
    });
});
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