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Edit File: timestamp-spec.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var chai_1 = require("chai");
var operators_1 = require("rxjs/operators");
var testing_1 = require("rxjs/testing");
var rxjs_1 = require("rxjs");
var observableMatcher_1 = require("../helpers/observableMatcher");
describe('timestamp', function () {
    var rxTestScheduler;
    beforeEach(function () {
        rxTestScheduler = new testing_1.TestScheduler(observableMatcher_1.observableMatcher);
    });
    it('should record the time stamp per each source elements', function () {
        rxTestScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('  -b-c-----d--e--|');
            var e1subs = '  ^--------------!';
            var expected = '-w-x-----y--z--|';
            var expectedValue = { w: 1, x: 3, y: 9, z: 12 };
            var result = e1.pipe((0, operators_1.timestamp)(rxTestScheduler), (0, operators_1.map)(function (x) { return x.timestamp; }));
            expectObservable(result).toBe(expected, expectedValue);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should record stamp if source emit elements', function () {
        rxTestScheduler.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 = '   -w--x----y---z--|';
            var expectedValue = {
                w: { value: 'b', timestamp: 1 },
                x: { value: 'c', timestamp: 4 },
                y: { value: 'd', timestamp: 9 },
                z: { value: 'e', timestamp: 13 },
            };
            expectObservable(e1.pipe((0, operators_1.timestamp)(rxTestScheduler))).toBe(expected, expectedValue);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should completes without record stamp if source does not emits', function () {
        rxTestScheduler.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.timestamp)(rxTestScheduler))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should complete immediately if source is empty', function () {
        rxTestScheduler.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.timestamp)(rxTestScheduler))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should record stamp then does not completes if source emits but not completes', function () {
        rxTestScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('  -a--b--');
            var e1subs = '  ^------';
            var expected = '-y--z--';
            var expectedValue = {
                y: { value: 'a', timestamp: 1 },
                z: { value: 'b', timestamp: 4 },
            };
            expectObservable(e1.pipe((0, operators_1.timestamp)(rxTestScheduler))).toBe(expected, expectedValue);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should allow unsubscribing explicitly and early', function () {
        rxTestScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('  -a--b-----c---d---|');
            var unsub = '   -------!           ';
            var e1subs = '  ^------!           ';
            var expected = '-y--z---           ';
            var expectedValue = {
                y: { value: 'a', timestamp: 1 },
                z: { value: 'b', timestamp: 4 },
            };
            var result = e1.pipe((0, operators_1.timestamp)(rxTestScheduler));
            expectObservable(result, unsub).toBe(expected, expectedValue);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should not break unsubscription chains when result is unsubscribed explicitly', function () {
        rxTestScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('  -a--b-----c---d---|');
            var e1subs = '  ^------!           ';
            var expected = '-y--z---           ';
            var unsub = '   -------!           ';
            var expectedValue = {
                y: { value: 'a', timestamp: 1 },
                z: { value: 'b', timestamp: 4 },
            };
            var result = e1.pipe((0, operators_1.mergeMap)(function (x) { return (0, rxjs_1.of)(x); }), (0, operators_1.timestamp)(rxTestScheduler), (0, operators_1.mergeMap)(function (x) { return (0, rxjs_1.of)(x); }));
            expectObservable(result, unsub).toBe(expected, expectedValue);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should not completes if source never completes', function () {
        rxTestScheduler.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.timestamp)(rxTestScheduler))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('raise error if source raises error', function () {
        rxTestScheduler.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.timestamp)(rxTestScheduler))).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should record stamp then raise error if source raises error after emit', function () {
        rxTestScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('  -a--b--#');
            var e1subs = '  ^------!';
            var expected = '-y--z--#';
            var expectedValue = {
                y: { value: 'a', timestamp: 1 },
                z: { value: 'b', timestamp: 4 },
            };
            expectObservable(e1.pipe((0, operators_1.timestamp)(rxTestScheduler))).toBe(expected, expectedValue);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should raise error if source immediately throws', function () {
        rxTestScheduler.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.timestamp)(rxTestScheduler))).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.timestamp)(), (0, operators_1.take)(3)).subscribe(function () {
        });
        (0, chai_1.expect)(sideEffects).to.deep.equal([0, 1, 2]);
    });
});
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