spec-js/operators/materialize-spec.js

"use strict";
var Rx = require('../../dist/cjs/Rx');
var Observable = Rx.Observable;
var Notification = Rx.Notification;
/** @test {materialize} */
describe('Observable.prototype.materialize', function () {
    asDiagram('materialize')('should materialize an Observable', function () {
        var e1 = hot('--x--y--z--|');
        var expected = '--a--b--c--(d|)';
        var values = { a: '{x}', b: '{y}', c: '{z}', d: '|' };
        var result = e1
            .materialize()
            .map(function (x) {
            if (x.kind === 'C') {
                return '|';
            }
            else {
                return '{' + x.value + '}';
            }
        });
        expectObservable(result).toBe(expected, values);
    });
    it('should materialize a happy stream', function () {
        var e1 = hot('--a--b--c--|');
        var e1subs = '^          !';
        var expected = '--w--x--y--(z|)';
        var expectedValue = {
            w: Notification.createNext('a'),
            x: Notification.createNext('b'),
            y: Notification.createNext('c'),
            z: Notification.createComplete()
        };
        expectObservable(e1.materialize()).toBe(expected, expectedValue);
        expectSubscriptions(e1.subscriptions).toBe(e1subs);
    });
    it('should materialize a sad stream', function () {
        var e1 = hot('--a--b--c--#');
        var e1subs = '^          !';
        var expected = '--w--x--y--(z|)';
        var expectedValue = {
            w: Notification.createNext('a'),
            x: Notification.createNext('b'),
            y: Notification.createNext('c'),
            z: Notification.createError('error')
        };
        expectObservable(e1.materialize()).toBe(expected, expectedValue);
        expectSubscriptions(e1.subscriptions).toBe(e1subs);
    });
    it('should allow unsubscribing explicitly and early', function () {
        var e1 = hot('--a--b--c--|');
        var unsub = '      !     ';
        var e1subs = '^     !     ';
        var expected = '--w--x-     ';
        var expectedValue = {
            w: Notification.createNext('a'),
            x: Notification.createNext('b')
        };
        expectObservable(e1.materialize(), unsub).toBe(expected, expectedValue);
        expectSubscriptions(e1.subscriptions).toBe(e1subs);
    });
    it('should not break unsubscription chains when result is unsubscribed explicitly', function () {
        var e1 = hot('--a--b--c--|');
        var e1subs = '^     !     ';
        var expected = '--w--x-     ';
        var unsub = '      !     ';
        var expectedValue = {
            w: Notification.createNext('a'),
            x: Notification.createNext('b')
        };
        var result = e1
            .mergeMap(function (x) { return Observable.of(x); })
            .materialize()
            .mergeMap(function (x) { return Observable.of(x); });
        expectObservable(result, unsub).toBe(expected, expectedValue);
        expectSubscriptions(e1.subscriptions).toBe(e1subs);
    });
    it('should materialize stream does not completes', function () {
        var e1 = hot('-');
        var e1subs = '^';
        var expected = '-';
        expectObservable(e1.materialize()).toBe(expected);
        expectSubscriptions(e1.subscriptions).toBe(e1subs);
    });
    it('should materialize stream never completes', function () {
        var e1 = cold('-');
        var e1subs = '^';
        var expected = '-';
        expectObservable(e1.materialize()).toBe(expected);
        expectSubscriptions(e1.subscriptions).toBe(e1subs);
    });
    it('should materialize stream does not emit', function () {
        var e1 = hot('----|');
        var e1subs = '^   !';
        var expected = '----(x|)';
        expectObservable(e1.materialize()).toBe(expected, { x: Notification.createComplete() });
        expectSubscriptions(e1.subscriptions).toBe(e1subs);
    });
    it('should materialize empty stream', function () {
        var e1 = cold('|');
        var e1subs = '(^!)';
        var expected = '(x|)';
        expectObservable(e1.materialize()).toBe(expected, { x: Notification.createComplete() });
        expectSubscriptions(e1.subscriptions).toBe(e1subs);
    });
    it('should materialize stream throws', function () {
        var e1 = cold('#');
        var e1subs = '(^!)';
        var expected = '(x|)';
        expectObservable(e1.materialize()).toBe(expected, { x: Notification.createError('error') });
        expectSubscriptions(e1.subscriptions).toBe(e1subs);
    });
});
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