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Edit File: mergeMap-spec.js

"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
var chai_1 = require("chai");
var operators_1 = require("rxjs/operators");
var rxjs_1 = require("rxjs");
var interop_helper_1 = require("../helpers/interop-helper");
var testing_1 = require("rxjs/testing");
var observableMatcher_1 = require("../helpers/observableMatcher");
describe('mergeMap', function () {
    var testScheduler;
    beforeEach(function () {
        testScheduler = new testing_1.TestScheduler(observableMatcher_1.observableMatcher);
    });
    it('should map-and-flatten each item to an Observable', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var values = { x: 10, y: 30, z: 50 };
            var x = cold('    x-x-x|             ', values);
            var xsubs = [
                '               --^----!             ',
                '               --------^----!       ',
                '               -----------^----!    ',
            ];
            var e1 = hot('  --1-----3--5--------|');
            var e1subs = '  ^-------------------!';
            var expected = '--x-x-x-y-yzyz-z----|';
            var result = e1.pipe((0, operators_1.mergeMap)(function (value) { return x.pipe((0, operators_1.map)(function (i) { return i * +value; })); }));
            expectObservable(result).toBe(expected, values);
            expectSubscriptions(x.subscriptions).toBe(xsubs);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should support the deprecated resultSelector', function () {
        var results = [];
        (0, rxjs_1.of)(1, 2, 3)
            .pipe((0, operators_1.mergeMap)(function (x) { return (0, rxjs_1.of)(x, x + 1, x + 2); }, function (a, b, i, ii) { return [a, b, i, ii]; }))
            .subscribe({
            next: function (value) {
                results.push(value);
            },
            error: function (err) {
                throw err;
            },
            complete: function () {
                (0, chai_1.expect)(results).to.deep.equal([
                    [1, 1, 0, 0],
                    [1, 2, 0, 1],
                    [1, 3, 0, 2],
                    [2, 2, 1, 0],
                    [2, 3, 1, 1],
                    [2, 4, 1, 2],
                    [3, 3, 2, 0],
                    [3, 4, 2, 1],
                    [3, 5, 2, 2],
                ]);
            },
        });
    });
    it('should support a void resultSelector (still deprecated)', function () {
        var results = [];
        (0, rxjs_1.of)(1, 2, 3)
            .pipe((0, operators_1.mergeMap)(function (x) { return (0, rxjs_1.of)(x, x + 1, x + 2); }, void 0))
            .subscribe({
            next: function (value) {
                results.push(value);
            },
            error: function (err) {
                throw err;
            },
            complete: function () {
                (0, chai_1.expect)(results).to.deep.equal([1, 2, 3, 2, 3, 4, 3, 4, 5]);
            },
        });
    });
    it('should support a void resultSelector (still deprecated) and concurrency limit', function () {
        var results = [];
        (0, rxjs_1.of)(1, 2, 3)
            .pipe((0, operators_1.mergeMap)(function (x) { return (0, rxjs_1.of)(x, x + 1, x + 2); }, void 0, 1))
            .subscribe({
            next: function (value) {
                results.push(value);
            },
            error: function (err) {
                throw err;
            },
            complete: function () {
                (0, chai_1.expect)(results).to.deep.equal([1, 2, 3, 2, 3, 4, 3, 4, 5]);
            },
        });
    });
    it('should mergeMap many regular interval inners', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var a = cold('  ----a---a---a---(a|)                    ');
            var asubs = '   ^---------------!                       ';
            var b = cold('      ----b---b---(b|)                    ');
            var bsubs = '   ----^-----------!                       ';
            var c = cold('                  ----c---c---c---c---(c|)');
            var csubs = '   ----------------^-------------------!   ';
            var d = cold('                          ----(d|)        ');
            var dsubs = '   ------------------------^---!           ';
            var e1 = hot('  a---b-----------c-------d-------|       ');
            var e1subs = '  ^-------------------------------!       ';
            var expected = '----a---(ab)(ab)(ab)c---c---(cd)c---(c|)';
            var observableLookup = { a: a, b: b, c: c, d: d };
            var source = e1.pipe((0, operators_1.mergeMap)(function (value) { return observableLookup[value]; }));
            expectObservable(source).toBe(expected);
            expectSubscriptions(a.subscriptions).toBe(asubs);
            expectSubscriptions(b.subscriptions).toBe(bsubs);
            expectSubscriptions(c.subscriptions).toBe(csubs);
            expectSubscriptions(d.subscriptions).toBe(dsubs);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should map values to constant resolved promises and merge', function (done) {
        var source = (0, rxjs_1.from)([4, 3, 2, 1]);
        var project = function () { return (0, rxjs_1.from)(Promise.resolve(42)); };
        var results = [];
        source.pipe((0, operators_1.mergeMap)(project)).subscribe({
            next: function (x) {
                results.push(x);
            },
            error: function (err) {
                done(new Error('Subscriber error handler not supposed to be called.'));
            },
            complete: function () {
                (0, chai_1.expect)(results).to.deep.equal([42, 42, 42, 42]);
                done();
            },
        });
    });
    it('should map values to constant rejected promises and merge', function (done) {
        var source = (0, rxjs_1.from)([4, 3, 2, 1]);
        var project = function () { return (0, rxjs_1.from)(Promise.reject(42)); };
        source.pipe((0, operators_1.mergeMap)(project)).subscribe({
            next: function (x) {
                done(new Error('Subscriber next handler not supposed to be called.'));
            },
            error: function (err) {
                (0, chai_1.expect)(err).to.equal(42);
                done();
            },
            complete: function () {
                done(new Error('Subscriber complete handler not supposed to be called.'));
            },
        });
    });
    it('should map values to resolved promises and merge', function (done) {
        var source = (0, rxjs_1.from)([4, 3, 2, 1]);
        var project = function (value, index) { return (0, rxjs_1.from)(Promise.resolve(value + index)); };
        var results = [];
        source.pipe((0, operators_1.mergeMap)(project)).subscribe({
            next: function (x) {
                results.push(x);
            },
            error: function (err) {
                done(new Error('Subscriber error handler not supposed to be called.'));
            },
            complete: function () {
                (0, chai_1.expect)(results).to.deep.equal([4, 4, 4, 4]);
                done();
            },
        });
    });
    it('should map values to rejected promises and merge', function (done) {
        var source = (0, rxjs_1.from)([4, 3, 2, 1]);
        var project = function (value, index) { return (0, rxjs_1.from)(Promise.reject('' + value + '-' + index)); };
        source.pipe((0, operators_1.mergeMap)(project)).subscribe({
            next: function (x) {
                done(new Error('Subscriber next handler not supposed to be called.'));
            },
            error: function (err) {
                (0, chai_1.expect)(err).to.equal('4-0');
                done();
            },
            complete: function () {
                done(new Error('Subscriber complete handler not supposed to be called.'));
            },
        });
    });
    it('should mergeMap many outer values to many inner values', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var x = cold('   ----i---j---k---l---|                        ');
            var xsubs = [
                '               -^-------------------!                        ',
                '               ---------^-------------------!                ',
                '               -----------------^-------------------!        ',
                '               -------------------------^-------------------!',
            ];
            var e1 = hot('  -a-------b-------c-------d-------|            ');
            var e1subs = '  ^--------------------------------!            ';
            var expected = '-----i---j---(ki)(lj)(ki)(lj)(ki)(lj)k---l---|';
            var result = e1.pipe((0, operators_1.mergeMap)(function () { return x; }));
            expectObservable(result).toBe(expected);
            expectSubscriptions(x.subscriptions).toBe(xsubs);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should mergeMap many outer to many inner, complete late', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var x = cold('   ----i---j---k---l---|                            ');
            var xsubs = [
                '               -^-------------------!                            ',
                '               ---------^-------------------!                    ',
                '               -----------------^-------------------!            ',
                '               -------------------------^-------------------!    ',
            ];
            var e1 = hot('  -a-------b-------c-------d-----------------------|');
            var e1subs = '  ^------------------------------------------------!';
            var expected = '-----i---j---(ki)(lj)(ki)(lj)(ki)(lj)k---l-------|';
            var result = e1.pipe((0, operators_1.mergeMap)(function () { return x; }));
            expectObservable(result).toBe(expected);
            expectSubscriptions(x.subscriptions).toBe(xsubs);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should mergeMap many outer to many inner, outer never completes', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var x = cold('   ----i---j---k---l---|                                  ');
            var xsubs = [
                '               -^-------------------!                                  ',
                '               ---------^-------------------!                          ',
                '               -----------------^-------------------!                  ',
                '               -------------------------^-------------------!          ',
                '               ---------------------------------^-------------------!  ',
                '               -------------------------------------------------^-----!',
            ];
            var e1 = hot('  -a-------b-------c-------d-------e---------------f------');
            var e1subs = '  ^------------------------------------------------------!';
            var expected = '-----i---j---(ki)(lj)(ki)(lj)(ki)(lj)(ki)(lj)k---l---i--';
            var unsub = '   -------------------------------------------------------!';
            var source = e1.pipe((0, operators_1.mergeMap)(function () { return x; }));
            expectObservable(source, unsub).toBe(expected);
            expectSubscriptions(x.subscriptions).toBe(xsubs);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should not break unsubscription chains when result is unsubscribed explicitly', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var x = cold('   ----i---j---k---l---|                                  ');
            var xsubs = [
                '               -^-------------------!                                  ',
                '               ---------^-------------------!                          ',
                '               -----------------^-------------------!                  ',
                '               -------------------------^-------------------!          ',
                '               ---------------------------------^-------------------!  ',
                '               -------------------------------------------------^-----!',
            ];
            var e1 = hot('  -a-------b-------c-------d-------e---------------f------');
            var e1subs = '  ^------------------------------------------------------!';
            var expected = '-----i---j---(ki)(lj)(ki)(lj)(ki)(lj)(ki)(lj)k---l---i--';
            var unsub = '   -------------------------------------------------------!';
            var source = e1.pipe((0, operators_1.map)(function (x) { return x; }), (0, operators_1.mergeMap)(function () { return x; }), (0, operators_1.map)(function (x) { return x; }));
            expectObservable(source, unsub).toBe(expected);
            expectSubscriptions(x.subscriptions).toBe(xsubs);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should not break unsubscription chains with interop inners when result is unsubscribed explicitly', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var x = cold('           --a--b--c--d--e--|           ');
            var xsubs = '   ---------^-----------!                ';
            var y = cold('                     ---f---g---h---i--|');
            var ysubs = '   -------------------^-!                ';
            var e1 = hot('  ---------x---------y---------|        ');
            var e1subs = '  ^--------------------!                ';
            var expected = '-----------a--b--c--d-                ';
            var unsub = '   ---------------------!                ';
            var observableLookup = { x: x, y: y };
            var result = e1.pipe((0, operators_1.mergeMap)(function (x) { return (0, rxjs_1.of)(x); }), (0, operators_1.mergeMap)(function (value) { return (0, interop_helper_1.asInteropObservable)(observableLookup[value]); }), (0, operators_1.mergeMap)(function (x) { return (0, rxjs_1.of)(x); }));
            expectObservable(result, unsub).toBe(expected);
            expectSubscriptions(x.subscriptions).toBe(xsubs);
            expectSubscriptions(y.subscriptions).toBe(ysubs);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should mergeMap many outer to many inner, inner never completes', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var x = cold('   ----i---j---k---l-------------------------');
            var xsubs = [
                '               -^-----------------------------------------',
                '               ---------^---------------------------------',
                '               -----------------^-------------------------',
                '               -------------------------^-----------------',
            ];
            var e1 = hot('  -a-------b-------c-------d-------|         ');
            var e1subs = '  ^--------------------------------!         ';
            var expected = '-----i---j---(ki)(lj)(ki)(lj)(ki)(lj)k---l-';
            var result = e1.pipe((0, operators_1.mergeMap)(function () { return x; }));
            expectObservable(result).toBe(expected);
            expectSubscriptions(x.subscriptions).toBe(xsubs);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should mergeMap many outer to many inner, and inner throws', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var x = cold('   ----i---j---k---l-------#   ');
            var xsubs = [
                '               -^-----------------------!   ',
                '               ---------^---------------!   ',
                '               -----------------^-------!   ',
                '               -------------------------(^!)',
            ];
            var e1 = hot('  -a-------b-------c-------d   ');
            var e1subs = '  ^------------------------!   ';
            var expected = '-----i---j---(ki)(lj)(ki)#   ';
            var result = e1.pipe((0, operators_1.mergeMap)(function () { return x; }));
            expectObservable(result).toBe(expected);
            expectSubscriptions(x.subscriptions).toBe(xsubs);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should mergeMap many outer to many inner, and outer throws', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var x = cold('   ----i---j---k---l---|            ');
            var xsubs = [
                '               -^-------------------!            ',
                '               ---------^-------------------!    ',
                '               -----------------^---------------!',
                '               -------------------------^-------!',
            ];
            var e1 = hot('  -a-------b-------c-------d-------#');
            var e1subs = '  ^--------------------------------!';
            var expected = '-----i---j---(ki)(lj)(ki)(lj)(ki)#';
            var result = e1.pipe((0, operators_1.mergeMap)(function () { return x; }));
            expectObservable(result).toBe(expected);
            expectSubscriptions(x.subscriptions).toBe(xsubs);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should mergeMap many outer to many inner, both inner and outer throw', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var x = cold('   ----i---j---k---l---#            ');
            var xsubs = [
                '               -^-------------------!            ',
                '               ---------^-----------!            ',
                '               -----------------^---!            ',
            ];
            var e1 = hot('  -a-------b-------c-------d-------#');
            var e1subs = '  ^--------------------!            ';
            var expected = '-----i---j---(ki)(lj)#            ';
            var result = e1.pipe((0, operators_1.mergeMap)(function () { return x; }));
            expectObservable(result).toBe(expected);
            expectSubscriptions(x.subscriptions).toBe(xsubs);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should mergeMap to many cold Observable, with parameter concurrency=1', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var x = cold('   ----i---j---k---l---|                                        ');
            var xsubs = [
                '               -^-------------------!                                        ',
                '               ---------------------^-------------------!                    ',
                '               -----------------------------------------^-------------------!',
            ];
            var e1 = hot('  -a-------b-------c---|                                        ');
            var e1subs = '  ^--------------------!                                        ';
            var expected = '-----i---j---k---l-------i---j---k---l-------i---j---k---l---|';
            var project = function () { return x; };
            var result = e1.pipe((0, operators_1.mergeMap)(project, 1));
            expectObservable(result).toBe(expected);
            expectSubscriptions(x.subscriptions).toBe(xsubs);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should mergeMap to many cold Observable, with parameter concurrency=2', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var x = cold('   ----i---j---k---l---|                    ');
            var xsubs = [
                '               -^-------------------!                    ',
                '               ---------^-------------------!            ',
                '               ---------------------^-------------------!',
            ];
            var e1 = hot('  -a-------b-------c---|                    ');
            var e1subs = '  ^--------------------!                    ';
            var expected = '-----i---j---(ki)(lj)k---(li)j---k---l---|';
            var project = function () { return x; };
            var result = e1.pipe((0, operators_1.mergeMap)(project, 2));
            expectObservable(result).toBe(expected);
            expectSubscriptions(x.subscriptions).toBe(xsubs);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should mergeMap to many hot Observable, with parameter concurrency=1', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var a = hot('   x----i---j---k---l---|                                        ');
            var asubs = '   -^-------------------!                                        ';
            var b = hot('   -x-x-xxxx-x-x-xxxxx-x----i---j---k---l---|                    ');
            var bsubs = '   ---------------------^-------------------!                    ';
            var c = hot('   x-xxxx---x-x-x-x-x-xx--x--x-x--x--xxxx-x-----i---j---k---l---|');
            var csubs = '   -----------------------------------------^-------------------!';
            var e1 = hot('  -a-------b-------c---|                                        ');
            var e1subs = '  ^--------------------!                                        ';
            var expected = '-----i---j---k---l-------i---j---k---l-------i---j---k---l---|';
            var inners = { a: a, b: b, c: c };
            var project = function (x) { return inners[x]; };
            var result = e1.pipe((0, operators_1.mergeMap)(project, 1));
            expectObservable(result).toBe(expected);
            expectSubscriptions(a.subscriptions).toBe(asubs);
            expectSubscriptions(b.subscriptions).toBe(bsubs);
            expectSubscriptions(c.subscriptions).toBe(csubs);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should mergeMap to many hot Observable, with parameter concurrency=2', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var x = hot('   x----i---j---k---l---|                    ');
            var xsubs = '   -^-------------------!                    ';
            var y = hot('   -x-x-xxxx----i---j---k---l---|            ');
            var ysubs = '   ---------^-------------------!            ';
            var z = hot('   x-xxxx---x-x-x-x-x-xx----i---j---k---l---|');
            var zsubs = '   ---------------------^-------------------!';
            var e1 = hot('  -a-------b-------c---|                    ');
            var e1subs = '  ^--------------------!                    ';
            var expected = '-----i---j---(ki)(lj)k---(li)j---k---l---|';
            var inners = { a: x, b: y, c: z };
            var project = function (x) { return inners[x]; };
            var result = e1.pipe((0, operators_1.mergeMap)(project, 2));
            expectObservable(result).toBe(expected);
            expectSubscriptions(x.subscriptions).toBe(xsubs);
            expectSubscriptions(y.subscriptions).toBe(ysubs);
            expectSubscriptions(z.subscriptions).toBe(zsubs);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should mergeMap many complex, where all inners are finite', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var a = cold(' -#                                                  ');
            var asubs = [];
            var b = cold('   -#                                                ');
            var bsubs = [];
            var c = cold('        -2--3--4--5------------------6-|             ');
            var csubs = '       --^------------------------------!             ';
            var d = cold('              -----------2--3|                       ');
            var dsubs = '       --------^--------------!                       ';
            var e = cold('                     -1--------2--3-----4--5--------|');
            var esubs = '       ---------------^------------------------------!';
            var f = cold('                                      --|            ');
            var fsubs = '       --------------------------------^-!            ';
            var g = cold('                                            ---1-2|  ');
            var gsubs = '       --------------------------------------^-----!  ';
            var e1 = hot('-a-b--^-c-----d------e----------------f-----g|       ');
            var e1subs = '      ^--------------------------------------!       ';
            var expected = '    ---2--3--4--5---1--2--3--2--3--6--4--5---1-2--|';
            var observableLookup = { a: a, b: b, c: c, d: d, e: e, f: f, g: g };
            var result = e1.pipe((0, operators_1.mergeMap)(function (value) { return observableLookup[value]; }));
            expectObservable(result).toBe(expected);
            expectSubscriptions(a.subscriptions).toBe(asubs);
            expectSubscriptions(b.subscriptions).toBe(bsubs);
            expectSubscriptions(c.subscriptions).toBe(csubs);
            expectSubscriptions(d.subscriptions).toBe(dsubs);
            expectSubscriptions(e.subscriptions).toBe(esubs);
            expectSubscriptions(f.subscriptions).toBe(fsubs);
            expectSubscriptions(g.subscriptions).toBe(gsubs);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should mergeMap many complex, all inners finite except one', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var a = cold(' -#                                                  ');
            var asubs = [];
            var b = cold('   -#                                                ');
            var bsubs = [];
            var c = cold('        -2--3--4--5------------------6-|             ');
            var csubs = '       --^------------------------------!             ';
            var d = cold('              -----------2--3-                       ');
            var dsubs = '       --------^---------------                       ';
            var e = cold('                     -1--------2--3-----4--5--------|');
            var esubs = '       ---------------^------------------------------!';
            var f = cold('                                      --|            ');
            var fsubs = '       --------------------------------^-!            ';
            var g = cold('                                            ---1-2|  ');
            var gsubs = '       --------------------------------------^-----!  ';
            var e1 = hot('-a-b--^-c-----d------e----------------f-----g|       ');
            var e1subs = '      ^--------------------------------------!       ';
            var expected = '    ---2--3--4--5---1--2--3--2--3--6--4--5---1-2---';
            var observableLookup = { a: a, b: b, c: c, d: d, e: e, f: f, g: g };
            var result = e1.pipe((0, operators_1.mergeMap)(function (value) { return observableLookup[value]; }));
            expectObservable(result).toBe(expected);
            expectSubscriptions(a.subscriptions).toBe(asubs);
            expectSubscriptions(b.subscriptions).toBe(bsubs);
            expectSubscriptions(c.subscriptions).toBe(csubs);
            expectSubscriptions(d.subscriptions).toBe(dsubs);
            expectSubscriptions(e.subscriptions).toBe(esubs);
            expectSubscriptions(f.subscriptions).toBe(fsubs);
            expectSubscriptions(g.subscriptions).toBe(gsubs);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should mergeMap many complex, inners finite, outer does not complete', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var a = cold(' -#                                                  ');
            var asubs = [];
            var b = cold('   -#                                                ');
            var bsubs = [];
            var c = cold('        -2--3--4--5------------------6-|             ');
            var csubs = '       --^------------------------------!             ';
            var d = cold('              -----------2--3|                       ');
            var dsubs = '       --------^--------------!                       ';
            var e = cold('                     -1--------2--3-----4--5--------|');
            var esubs = '       ---------------^------------------------------!';
            var f = cold('                                      --|            ');
            var fsubs = '       --------------------------------^-!            ';
            var g = cold('                                            ---1-2|  ');
            var gsubs = '       --------------------------------------^-----!  ';
            var e1 = hot('-a-b--^-c-----d------e----------------f-----g--------');
            var e1subs = '      ^----------------------------------------------';
            var expected = '    ---2--3--4--5---1--2--3--2--3--6--4--5---1-2---';
            var observableLookup = { a: a, b: b, c: c, d: d, e: e, f: f, g: g };
            var result = e1.pipe((0, operators_1.mergeMap)(function (value) { return observableLookup[value]; }));
            expectObservable(result).toBe(expected);
            expectSubscriptions(a.subscriptions).toBe(asubs);
            expectSubscriptions(b.subscriptions).toBe(bsubs);
            expectSubscriptions(c.subscriptions).toBe(csubs);
            expectSubscriptions(d.subscriptions).toBe(dsubs);
            expectSubscriptions(e.subscriptions).toBe(esubs);
            expectSubscriptions(f.subscriptions).toBe(fsubs);
            expectSubscriptions(g.subscriptions).toBe(gsubs);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should mergeMap many complex, all inners finite, and outer throws', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var a = cold(' -#                                                  ');
            var asubs = [];
            var b = cold('   -#                                                ');
            var bsubs = [];
            var c = cold('        -2--3--4--5------------------6-|             ');
            var csubs = '       --^------------------------------!             ';
            var d = cold('              -----------2--3|                       ');
            var dsubs = '       --------^--------------!                       ';
            var e = cold('                     -1--------2--3-----4--5--------|');
            var esubs = '       ---------------^-----------------------!       ';
            var f = cold('                                      --|            ');
            var fsubs = '       --------------------------------^-!            ';
            var g = cold('                                            ---1-2|  ');
            var gsubs = '       --------------------------------------^!       ';
            var e1 = hot('-a-b--^-c-----d------e----------------f-----g#       ');
            var e1subs = '      ^--------------------------------------!       ';
            var expected = '    ---2--3--4--5---1--2--3--2--3--6--4--5-#       ';
            var observableLookup = { a: a, b: b, c: c, d: d, e: e, f: f, g: g };
            var result = e1.pipe((0, operators_1.mergeMap)(function (value) { return observableLookup[value]; }));
            expectObservable(result).toBe(expected);
            expectSubscriptions(a.subscriptions).toBe(asubs);
            expectSubscriptions(b.subscriptions).toBe(bsubs);
            expectSubscriptions(c.subscriptions).toBe(csubs);
            expectSubscriptions(d.subscriptions).toBe(dsubs);
            expectSubscriptions(e.subscriptions).toBe(esubs);
            expectSubscriptions(f.subscriptions).toBe(fsubs);
            expectSubscriptions(g.subscriptions).toBe(gsubs);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should mergeMap many complex, all inners complete except one throws', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var a = cold(' -#                                                  ');
            var asubs = [];
            var b = cold('   -#                                                ');
            var bsubs = [];
            var c = cold('        -2--3--4--5------------------6-#             ');
            var csubs = '       --^------------------------------!             ';
            var d = cold('              -----------2--3|                       ');
            var dsubs = '       --------^--------------!                       ';
            var e = cold('                     -1--------2--3-----4--5--------|');
            var esubs = '       ---------------^-----------------!             ';
            var f = cold('                                      --|            ');
            var fsubs = '       --------------------------------^!             ';
            var g = cold('                                            ---1-2|  ');
            var gsubs = [];
            var e1 = hot('-a-b--^-c-----d------e----------------f-----g|       ');
            var e1subs = '      ^--------------------------------!             ';
            var expected = '    ---2--3--4--5---1--2--3--2--3--6-#             ';
            var observableLookup = { a: a, b: b, c: c, d: d, e: e, f: f, g: g };
            var result = e1.pipe((0, operators_1.mergeMap)(function (value) { return observableLookup[value]; }));
            expectObservable(result).toBe(expected);
            expectSubscriptions(a.subscriptions).toBe(asubs);
            expectSubscriptions(b.subscriptions).toBe(bsubs);
            expectSubscriptions(c.subscriptions).toBe(csubs);
            expectSubscriptions(d.subscriptions).toBe(dsubs);
            expectSubscriptions(e.subscriptions).toBe(esubs);
            expectSubscriptions(f.subscriptions).toBe(fsubs);
            expectSubscriptions(g.subscriptions).toBe(gsubs);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should mergeMap many complex, all inners finite, outer is unsubscribed', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var a = cold(' -#                                                  ');
            var asubs = [];
            var b = cold('   -#                                                ');
            var bsubs = [];
            var c = cold('        -2--3--4--5------------------6-|             ');
            var csubs = '       --^---------------------------!                ';
            var d = cold('              -----------2--3|                       ');
            var dsubs = '       --------^--------------!                       ';
            var e = cold('                     -1--------2--3-----4--5--------|');
            var esubs = '       ---------------^--------------!                ';
            var f = cold('                                      --|            ');
            var fsubs = [];
            var g = cold('                                            ---1-2|  ');
            var gsubs = [];
            var e1 = hot('-a-b--^-c-----d------e----------------f-----g|');
            var e1subs = '      ^-----------------------------!                ';
            var expected = '    ---2--3--4--5---1--2--3--2--3--                ';
            var unsub = '       ------------------------------!                ';
            var observableLookup = { a: a, b: b, c: c, d: d, e: e, f: f, g: g };
            var source = e1.pipe((0, operators_1.mergeMap)(function (value) { return observableLookup[value]; }));
            expectObservable(source, unsub).toBe(expected);
            expectSubscriptions(a.subscriptions).toBe(asubs);
            expectSubscriptions(b.subscriptions).toBe(bsubs);
            expectSubscriptions(c.subscriptions).toBe(csubs);
            expectSubscriptions(d.subscriptions).toBe(dsubs);
            expectSubscriptions(e.subscriptions).toBe(esubs);
            expectSubscriptions(f.subscriptions).toBe(fsubs);
            expectSubscriptions(g.subscriptions).toBe(gsubs);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should mergeMap many complex, all inners finite, project throws', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var a = cold(' -#                                                  ');
            var asubs = [];
            var b = cold('   -#                                                ');
            var bsubs = [];
            var c = cold('        -2--3--4--5------------------6-|             ');
            var csubs = '       --^------------!                               ';
            var d = cold('              -----------2--3|                       ');
            var dsubs = '       --------^------!                               ';
            var e = cold('                     -1--------2--3-----4--5--------|');
            var esubs = [];
            var f = cold('                                      --|            ');
            var fsubs = [];
            var g = cold('                                            ---1-2|  ');
            var gsubs = [];
            var e1 = hot('-a-b--^-c-----d------e----------------f-----g|       ');
            var e1subs = '      ^--------------!                               ';
            var expected = '    ---2--3--4--5--#                               ';
            var observableLookup = { a: a, b: b, c: c, d: d, e: e, f: f, g: g };
            var source = e1.pipe((0, operators_1.mergeMap)(function (value) {
                if (value === 'e') {
                    throw 'error';
                }
                return observableLookup[value];
            }));
            expectObservable(source).toBe(expected);
            expectSubscriptions(a.subscriptions).toBe(asubs);
            expectSubscriptions(b.subscriptions).toBe(bsubs);
            expectSubscriptions(c.subscriptions).toBe(csubs);
            expectSubscriptions(d.subscriptions).toBe(dsubs);
            expectSubscriptions(e.subscriptions).toBe(esubs);
            expectSubscriptions(f.subscriptions).toBe(fsubs);
            expectSubscriptions(g.subscriptions).toBe(gsubs);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    function arrayRepeat(value, times) {
        var results = [];
        for (var i = 0; i < times; i++) {
            results.push(value);
        }
        return results;
    }
    it('should mergeMap many outer to an array for each value', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('  2-----4--------3--------2-------|');
            var e1subs = '  ^-------------------------------!';
            var expected = '(22)--(4444)---(333)----(22)----|';
            var source = e1.pipe((0, operators_1.mergeMap)(function (value) { return arrayRepeat(value, +value); }));
            expectObservable(source).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should mergeMap many outer to inner arrays, and outer throws', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('  2-----4--------3--------2-------#');
            var e1subs = '  ^-------------------------------!';
            var expected = '(22)--(4444)---(333)----(22)----#';
            var source = e1.pipe((0, operators_1.mergeMap)(function (value) { return arrayRepeat(value, +value); }));
            expectObservable(source).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should mergeMap many outer to inner arrays, outer gets unsubscribed', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('  2-----4--------3--------2-------|');
            var e1subs = '  ^------------!                   ';
            var expected = '(22)--(4444)--                   ';
            var unsub = '   -------------!                   ';
            var source = e1.pipe((0, operators_1.mergeMap)(function (value) { return arrayRepeat(value, +value); }));
            expectObservable(source, unsub).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should mergeMap many outer to inner arrays, project throws', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('  2-----4--------3--------2-------|');
            var e1subs = '  ^--------------!                 ';
            var expected = '(22)--(4444)---#                 ';
            var source = e1.pipe((0, operators_1.mergeMap)(function (value) {
                if (value === '3') {
                    throw 'error';
                }
                return arrayRepeat(value, +value);
            }));
            expectObservable(source).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should map and flatten', function () {
        var source = (0, rxjs_1.of)(1, 2, 3, 4).pipe((0, operators_1.mergeMap)(function (x) { return (0, rxjs_1.of)(x + '!'); }));
        var expected = ['1!', '2!', '3!', '4!'];
        var completed = false;
        source.subscribe({
            next: function (x) {
                (0, chai_1.expect)(x).to.equal(expected.shift());
            },
            complete: function () {
                (0, chai_1.expect)(expected.length).to.equal(0);
                completed = true;
            },
        });
        (0, chai_1.expect)(completed).to.be.true;
    });
    it('should map and flatten an Array', function () {
        var source = (0, rxjs_1.of)(1, 2, 3, 4).pipe((0, operators_1.mergeMap)(function (x) { return [x + '!']; }));
        var expected = ['1!', '2!', '3!', '4!'];
        var completed = false;
        source.subscribe({
            next: function (x) {
                (0, chai_1.expect)(x).to.equal(expected.shift());
            },
            complete: function () {
                (0, chai_1.expect)(expected.length).to.equal(0);
                completed = true;
            },
        });
        (0, chai_1.expect)(completed).to.be.true;
    });
    it('should support nested merges', function (done) {
        var results = [];
        (0, rxjs_1.of)(1)
            .pipe((0, operators_1.mergeMap)(function () { return (0, rxjs_1.defer)(function () { return (0, rxjs_1.of)(2, rxjs_1.asapScheduler); }).pipe((0, operators_1.mergeMap)(function () { return (0, rxjs_1.defer)(function () { return (0, rxjs_1.of)(3, rxjs_1.asapScheduler); }); })); }))
            .subscribe({
            next: function (value) {
                results.push(value);
            },
            complete: function () {
                results.push('done');
            },
        });
        setTimeout(function () {
            (0, chai_1.expect)(results).to.deep.equal([3, 'done']);
            done();
        }, 0);
    });
    it('should support nested merges with promises', function (done) {
        var results = [];
        (0, rxjs_1.of)(1)
            .pipe((0, operators_1.mergeMap)(function () { return (0, rxjs_1.from)(Promise.resolve(2)).pipe((0, operators_1.mergeMap)(function () { return Promise.resolve(3); })); }))
            .subscribe({
            next: function (value) {
                results.push(value);
            },
            complete: function () {
                results.push('done');
            },
        });
        setTimeout(function () {
            (0, chai_1.expect)(results).to.deep.equal([3, 'done']);
            done();
        }, 0);
    });
    it('should support wrapped sources', function (done) {
        var results = [];
        var wrapped = new rxjs_1.Observable(function (subscriber) {
            var subscription = (0, rxjs_1.timer)(0, rxjs_1.asapScheduler).subscribe(subscriber);
            return function () { return subscription.unsubscribe(); };
        });
        wrapped.pipe((0, operators_1.mergeMap)(function () { return (0, rxjs_1.timer)(0, rxjs_1.asapScheduler); })).subscribe({
            next: function (value) {
                results.push(value);
            },
            complete: function () {
                results.push('done');
            },
        });
        setTimeout(function () {
            (0, chai_1.expect)(results).to.deep.equal([0, 'done']);
            done();
        }, 0);
    });
    it('should properly handle errors from iterables that are processed after some async', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var noXError = new Error('we do not allow x');
            var e1 = cold(' -----a------------b-----|', { a: ['o', 'o', 'o'], b: ['o', 'x', 'o'] });
            var e1subs = '  ^-----------------!      ';
            var expected = '-----(ooo)--------(o#)   ';
            var iterable = function (data) {
                var data_1, data_1_1, d, e_1_1;
                var e_1, _a;
                return __generator(this, function (_b) {
                    switch (_b.label) {
                        case 0:
                            _b.trys.push([0, 5, 6, 7]);
                            data_1 = __values(data), data_1_1 = data_1.next();
                            _b.label = 1;
                        case 1:
                            if (!!data_1_1.done) return [3, 4];
                            d = data_1_1.value;
                            if (d === 'x') {
                                throw noXError;
                            }
                            return [4, d];
                        case 2:
                            _b.sent();
                            _b.label = 3;
                        case 3:
                            data_1_1 = data_1.next();
                            return [3, 1];
                        case 4: return [3, 7];
                        case 5:
                            e_1_1 = _b.sent();
                            e_1 = { error: e_1_1 };
                            return [3, 7];
                        case 6:
                            try {
                                if (data_1_1 && !data_1_1.done && (_a = data_1.return)) _a.call(data_1);
                            }
                            finally { if (e_1) throw e_1.error; }
                            return [7];
                        case 7: return [2];
                    }
                });
            };
            var result = e1.pipe((0, operators_1.mergeMap)(function (x) { return (0, rxjs_1.of)(x).pipe((0, operators_1.delay)(0), (0, operators_1.mergeMap)(iterable)); }));
            expectObservable(result).toBe(expected, undefined, noXError);
            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.mergeMap)(function (value) { return (0, rxjs_1.of)(value); }), (0, operators_1.take)(3))
            .subscribe(function () {
        });
        (0, chai_1.expect)(sideEffects).to.deep.equal([0, 1, 2]);
    });
});
//# sourceMappingURL=mergeMap-spec.js.map

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