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Edit File: endWith-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('endWith', function () {
    var defaultEndValue = 'x';
    var testScheduler;
    beforeEach(function () {
        testScheduler = new testing_1.TestScheduler(observableMatcher_1.observableMatcher);
    });
    it('should append to a cold Observable', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = cold(' ---a--b--c--|   ');
            var e1subs = '  ^-----------!   ';
            var expected = '---a--b--c--(s|)';
            expectObservable(e1.pipe((0, operators_1.endWith)('s'))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should append numbers to a cold Observable', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var values = { a: 1, b: 2, c: 3, s: 4 };
            var e1 = cold(' ---a--b--c--|   ', values);
            var e1subs = '  ^-----------!   ';
            var expected = '---a--b--c--(s|)';
            expectObservable(e1.pipe((0, operators_1.endWith)(values.s))).toBe(expected, values);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should end an observable with given value', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('  --a--|   ');
            var e1subs = '  ^----!   ';
            var expected = '--a--(x|)';
            expectObservable(e1.pipe((0, operators_1.endWith)(defaultEndValue))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should not end with given value if source does not complete', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('  ----a-');
            var e1subs = '  ^     ';
            var expected = '----a-';
            expectObservable(e1.pipe((0, operators_1.endWith)(defaultEndValue))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should not end with given value if source never emits and does not 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.endWith)(defaultEndValue))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should end with given value if source does not emit but does complete', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('  ---|   ');
            var e1subs = '  ^--!   ';
            var expected = '---(x|)';
            expectObservable(e1.pipe((0, operators_1.endWith)(defaultEndValue))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should emit given value and complete immediately if source is empty', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = cold(' |   ');
            var e1subs = '  (^!)';
            var expected = '(x|)';
            expectObservable(e1.pipe((0, operators_1.endWith)(defaultEndValue))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should end with given value and source both if source emits single value', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = cold(' (a|) ');
            var e1subs = '  (^!) ';
            var expected = '(ax|)';
            expectObservable(e1.pipe((0, operators_1.endWith)(defaultEndValue))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should end with given values when given more than one value', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('  -----a--|    ');
            var e1subs = '  ^-------!    ';
            var expected = '-----a--(yz|)';
            expectObservable(e1.pipe((0, operators_1.endWith)('y', 'z'))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should raise error and not end with given value if source raises error', 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.endWith)(defaultEndValue))).toBe(expected, defaultEndValue);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should raise error immediately and not end with given value if source throws error immediately', 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.endWith)(defaultEndValue))).toBe(expected, defaultEndValue);
            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--|');
            var e1subs = '  ^--------!        ';
            var expected = '---a--b---        ';
            var unsub = '   ---------!        ';
            var result = e1.pipe((0, operators_1.endWith)('s'));
            expectObservable(result, unsub).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    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--|');
            var e1subs = '  ^--------!        ';
            var expected = '---a--b---        ';
            var unsub = '   ---------!        ';
            var result = e1.pipe((0, operators_1.mergeMap)(function (x) { return (0, rxjs_1.of)(x); }), (0, operators_1.endWith)('s'), (0, operators_1.mergeMap)(function (x) { return (0, rxjs_1.of)(x); }));
            expectObservable(result, unsub).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should end with empty if given value is not specified', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('  -a-|');
            var e1subs = '  ^--!';
            var expected = '-a-|';
            expectObservable(e1.pipe((0, operators_1.endWith)())).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should accept scheduler as last argument with single value', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('  --a--|   ');
            var e1subs = '  ^----!   ';
            var expected = '--a--(x|)';
            expectObservable(e1.pipe((0, operators_1.endWith)(defaultEndValue, testScheduler))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should accept scheduler as last argument with multiple value', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('  -----a--|    ');
            var e1subs = '  ^-------!    ';
            var expected = '-----a--(yz|)';
            expectObservable(e1.pipe((0, operators_1.endWith)('y', 'z', testScheduler))).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.endWith)(0), (0, operators_1.take)(3)).subscribe(function () {
        });
        (0, chai_1.expect)(sideEffects).to.deep.equal([0, 1, 2]);
    });
});
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