spec-js/operators/ignoreElements-spec.js

"use strict";
var Rx = require('../../dist/cjs/Rx');
var Observable = Rx.Observable;
/** @test {ignoreElements} */
describe('Observable.prototype.ignoreElements', function () {
    asDiagram('ignoreElements')('should ignore all the elements of the source', function () {
        var source = hot('--a--b--c--d--|');
        var subs = '^             !';
        var expected = '--------------|';
        expectObservable(source.ignoreElements()).toBe(expected);
        expectSubscriptions(source.subscriptions).toBe(subs);
    });
    it('should allow unsubscribing early and explicitly', function () {
        var source = hot('--a--b--c--d--|');
        var subs = '^      !       ';
        var expected = '--------       ';
        var unsub = '       !       ';
        var result = source.ignoreElements();
        expectObservable(result, unsub).toBe(expected);
        expectSubscriptions(source.subscriptions).toBe(subs);
    });
    it('should allow unsubscribing early and explicitly', function () {
        var source = hot('--a--b--c--d--|');
        var subs = '^      !       ';
        var expected = '--------       ';
        var unsub = '       !       ';
        var result = source
            .mergeMap(function (x) { return Observable.of(x); })
            .ignoreElements()
            .mergeMap(function (x) { return Observable.of(x); });
        expectObservable(result, unsub).toBe(expected);
        expectSubscriptions(source.subscriptions).toBe(subs);
    });
    it('should propagate errors from the source', function () {
        var source = hot('--a--#');
        var subs = '^    !';
        var expected = '-----#';
        expectObservable(source.ignoreElements()).toBe(expected);
        expectSubscriptions(source.subscriptions).toBe(subs);
    });
    it('should support Observable.empty', function () {
        var source = cold('|');
        var subs = '(^!)';
        var expected = '|';
        expectObservable(source.ignoreElements()).toBe(expected);
        expectSubscriptions(source.subscriptions).toBe(subs);
    });
    it('should support Observable.never', function () {
        var source = cold('-');
        var subs = '^';
        var expected = '-';
        expectObservable(source.ignoreElements()).toBe(expected);
        expectSubscriptions(source.subscriptions).toBe(subs);
    });
    it('should support Observable.throw', function () {
        var source = cold('#');
        var subs = '(^!)';
        var expected = '#';
        expectObservable(source.ignoreElements()).toBe(expected);
        expectSubscriptions(source.subscriptions).toBe(subs);
    });
});
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