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Edit File: map-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");
var addDrama = function (x) { return x + '!'; };
describe('map', function () {
    var testScheduler;
    beforeEach(function () {
        testScheduler = new testing_1.TestScheduler(observableMatcher_1.observableMatcher);
    });
    it('should map multiple values', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = cold(' --1--2--3--|');
            var e1subs = '  ^----------!';
            var expected = '--x--y--z--|';
            var result = e1.pipe((0, operators_1.map)(function (x) { return 10 * +x; }));
            expectObservable(result).toBe(expected, { x: 10, y: 20, z: 30 });
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should map one value', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var values = { x: 42 };
            var e1 = cold(' --x--|', values);
            var e1subs = '  ^----!';
            var expected = '--y--|';
            var result = e1.pipe((0, operators_1.map)(addDrama));
            expectObservable(result).toBe(expected, { y: '42!' });
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should map multiple values', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = cold(' --1--2--3--|');
            var e1subs = '  ^----------!';
            var expected = '--x--y--z--|';
            var result = e1.pipe((0, operators_1.map)(addDrama));
            expectObservable(result).toBe(expected, { x: '1!', y: '2!', z: '3!' });
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should propagate errors from map function', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var values = { x: 42 };
            var e1 = cold(' --x--|', values);
            var e1subs = '  ^-!   ';
            var expected = '--#   ';
            var result = e1.pipe((0, operators_1.map)(function (x) {
                throw 'too bad';
            }));
            expectObservable(result).toBe(expected, null, 'too bad');
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should propagate errors from observable that emits only errors', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = cold(' #   ');
            var e1subs = '  (^!)';
            var expected = '#   ';
            var result = e1.pipe((0, operators_1.map)(rxjs_1.identity));
            expectObservable(result).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should propagate errors from observable that emit values', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var values = { a: 1, b: 2 };
            var e1 = cold(' --a--b--#', values, 'too bad');
            var e1subs = '  ^-------!';
            var expected = '--x--y--#';
            var result = e1.pipe((0, operators_1.map)(addDrama));
            expectObservable(result).toBe(expected, { x: '1!', y: '2!' }, 'too bad');
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should not map an empty observable', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = cold(' |   ');
            var e1subs = '  (^!)';
            var expected = '|   ';
            var invoked = 0;
            var result = e1.pipe((0, operators_1.map)(function (x) {
                invoked++;
                return x;
            }), (0, operators_1.tap)({
                complete: function () {
                    (0, chai_1.expect)(invoked).to.equal(0);
                },
            }));
            expectObservable(result).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should allow unsubscribing explicitly and early', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = cold(' --1--2--3--|');
            var e1subs = '  ^-----!     ';
            var expected = '--x--y-     ';
            var unsub = '   ------!     ';
            var result = e1.pipe((0, operators_1.map)(addDrama));
            expectObservable(result, unsub).toBe(expected, { x: '1!', y: '2!' });
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should map with index', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('-5-^-4--3---2----1--|');
            var e1subs = '   ^----------------!';
            var expected = ' --a--b---c----d--|';
            var values = { a: 5, b: 14, c: 23, d: 32 };
            var invoked = 0;
            var result = e1.pipe((0, operators_1.map)(function (x, index) {
                invoked++;
                return parseInt(x) + 1 + index * 10;
            }), (0, operators_1.tap)({
                complete: function () {
                    (0, chai_1.expect)(invoked).to.equal(4);
                },
            }));
            expectObservable(result).toBe(expected, values);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should map with index until completed', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('-5-^-4--3---2----1--|');
            var e1subs = '   ^----------------!';
            var expected = ' --a--b---c----d--|';
            var values = { a: 5, b: 14, c: 23, d: 32 };
            var invoked = 0;
            var result = e1.pipe((0, operators_1.map)(function (x, index) {
                invoked++;
                return parseInt(x) + 1 + index * 10;
            }), (0, operators_1.tap)({
                complete: function () {
                    (0, chai_1.expect)(invoked).to.equal(4);
                },
            }));
            expectObservable(result).toBe(expected, values);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should map with index until an error occurs', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('-5-^-4--3---2----1--#', undefined, 'too bad');
            var e1subs = '   ^----------------!';
            var expected = ' --a--b---c----d--#';
            var values = { a: 5, b: 14, c: 23, d: 32 };
            var invoked = 0;
            var result = e1.pipe((0, operators_1.map)(function (x, index) {
                invoked++;
                return parseInt(x) + 1 + index * 10;
            }), (0, operators_1.tap)({
                error: function () {
                    (0, chai_1.expect)(invoked).to.equal(4);
                },
            }));
            expectObservable(result).toBe(expected, values, 'too bad');
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should map using a custom thisArg', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('-5-^-4--3---2----1--|');
            var e1subs = '   ^----------------!';
            var expected = ' --a--b---c----d--|';
            var values = { a: 46, b: 55, c: 64, d: 73 };
            var foo = {
                value: 42,
            };
            var result = e1.pipe((0, operators_1.map)(function (x, index) {
                (0, chai_1.expect)(this).to.equal(foo);
                return parseInt(x) + foo.value + index * 10;
            }, foo));
            expectObservable(result).toBe(expected, values);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should map twice', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('-0----1-^-2---3--4-5--6--7-8-|');
            var e1subs = '        ^--------------------!';
            var expected = '      --a---b--c-d--e--f-g-|';
            var values = { a: 2, b: 3, c: 4, d: 5, e: 6, f: 7, g: 8 };
            var invoked1 = 0;
            var invoked2 = 0;
            var result = e1.pipe((0, operators_1.map)(function (x) {
                invoked1++;
                return parseInt(x) * 2;
            }), (0, operators_1.map)(function (x) {
                invoked2++;
                return x / 2;
            }), (0, operators_1.tap)({
                complete: function () {
                    (0, chai_1.expect)(invoked1).to.equal(7);
                    (0, chai_1.expect)(invoked2).to.equal(7);
                },
            }));
            expectObservable(result).toBe(expected, values);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should do multiple maps using a custom thisArg', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('  --1--2--3--4--|');
            var e1subs = '  ^-------------!';
            var expected = '--a--b--c--d--|';
            var values = { a: 11, b: 14, c: 17, d: 20 };
            var Filterer = (function () {
                function Filterer() {
                    this.selector1 = function (x) { return parseInt(x) + 2; };
                    this.selector2 = function (x) { return parseInt(x) * 3; };
                }
                return Filterer;
            }());
            var filterer = new Filterer();
            var result = e1.pipe((0, operators_1.map)(function (x) {
                return this.selector1(x);
            }, filterer), (0, operators_1.map)(function (x) {
                return this.selector2(x);
            }, filterer), (0, operators_1.map)(function (x) {
                return this.selector1(x);
            }, filterer));
            expectObservable(result).toBe(expected, values);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should not break unsubscription chain when unsubscribed explicitly', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = cold(' --1--2--3--|');
            var e1subs = '  ^-----!     ';
            var expected = '--x--y-     ';
            var unsub = '   ------!     ';
            var result = e1.pipe((0, operators_1.mergeMap)(function (x) { return (0, rxjs_1.of)(x); }), (0, operators_1.map)(addDrama), (0, operators_1.mergeMap)(function (x) { return (0, rxjs_1.of)(x); }));
            expectObservable(result, unsub).toBe(expected, { x: '1!', y: '2!' });
            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.map)(rxjs_1.identity), (0, operators_1.take)(3)).subscribe(function () {
        });
        (0, chai_1.expect)(sideEffects).to.deep.equal([0, 1, 2]);
    });
});
//# sourceMappingURL=map-spec.js.map

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