@reactivex/rxjs/spec-js/operators/timeout-spec.js

Reactive Extensions for modern JavaScript

"use strict";
var Rx = require('../../dist/cjs/Rx');
var Observable = Rx.Observable;
/** @test {timeout} */
describe('Observable.prototype.timeout', function () {
    var defaultTimeoutError = new Error('timeout');
    asDiagram('timeout(50)')('should timeout after a specified timeout period', function () {
        var e1 = cold('-------a--b--|');
        var e1subs = '^    !        ';
        var expected = '-----#        ';
        var result = e1.timeout(50, null, rxTestScheduler);
        expectObservable(result).toBe(expected, null, defaultTimeoutError);
        expectSubscriptions(e1.subscriptions).toBe(e1subs);
    });
    it('should timeout after specified timeout period and send the passed error', function () {
        var e1 = cold('-');
        var e1subs = '^    !';
        var expected = '-----#';
        var value = 'hello';
        var result = e1.timeout(50, value, rxTestScheduler);
        expectObservable(result).toBe(expected, null, value);
        expectSubscriptions(e1.subscriptions).toBe(e1subs);
    });
    it('should not timeout if source completes within absolute timeout period', function () {
        var e1 = hot('--a--b--c--d--e--|');
        var e1subs = '^                !';
        var expected = '--a--b--c--d--e--|';
        var timeoutValue = new Date(rxTestScheduler.now() + (expected.length + 2) * 10);
        expectObservable(e1.timeout(timeoutValue, null, rxTestScheduler)).toBe(expected);
        expectSubscriptions(e1.subscriptions).toBe(e1subs);
    });
    it('should not timeout if source emits within timeout period', function () {
        var e1 = hot('--a--b--c--d--e--|');
        var e1subs = '^                !';
        var expected = '--a--b--c--d--e--|';
        expectObservable(e1.timeout(50, null, rxTestScheduler)).toBe(expected);
        expectSubscriptions(e1.subscriptions).toBe(e1subs);
    });
    it('should allow unsubscribing explicitly and early', function () {
        var e1 = hot('--a--b--c---d--e--|');
        var unsub = '          !        ';
        var e1subs = '^         !        ';
        var expected = '--a--b--c--        ';
        var result = e1.timeout(50, null, rxTestScheduler);
        expectObservable(result, unsub).toBe(expected);
        expectSubscriptions(e1.subscriptions).toBe(e1subs);
    });
    it('should not break unsubscription chains when result is unsubscribed explicitly', function () {
        var e1 = hot('--a--b--c---d--e--|');
        var e1subs = '^         !        ';
        var expected = '--a--b--c--        ';
        var unsub = '          !        ';
        var result = e1
            .mergeMap(function (x) { return Observable.of(x); })
            .timeout(50, null, rxTestScheduler)
            .mergeMap(function (x) { return Observable.of(x); });
        expectObservable(result, unsub).toBe(expected);
        expectSubscriptions(e1.subscriptions).toBe(e1subs);
    });
    it('should timeout after a specified timeout period between emit with default ' +
        'error while source emits', function () {
        var e1 = hot('---a---b---c------d---e---|');
        var e1subs = '^               !          ';
        var expected = '---a---b---c----#          ';
        var values = { a: 'a', b: 'b', c: 'c' };
        var result = e1.timeout(50, null, rxTestScheduler);
        expectObservable(result).toBe(expected, values, defaultTimeoutError);
        expectSubscriptions(e1.subscriptions).toBe(e1subs);
    });
    it('should timeout after a specified delay with passed error while source emits', function () {
        var value = 'hello';
        var e1 = hot('---a---b---c------d---e---|');
        var e1subs = '^               !          ';
        var expected = '---a---b---c----#          ';
        var values = { a: 'a', b: 'b', c: 'c' };
        var result = e1.timeout(50, value, rxTestScheduler);
        expectObservable(result).toBe(expected, values, value);
        expectSubscriptions(e1.subscriptions).toBe(e1subs);
    });
    it('should timeout at a specified Date', function () {
        var e1 = cold('-');
        var e1subs = '^         !';
        var expected = '----------#';
        var result = e1.timeout(new Date(rxTestScheduler.now() + 100), null, rxTestScheduler);
        expectObservable(result).toBe(expected, null, defaultTimeoutError);
        expectSubscriptions(e1.subscriptions).toBe(e1subs);
    });
    it('should timeout specified Date with default error while source emits', function () {
        var e1 = hot('--a--b--c--d--e--|');
        var e1subs = '^         !       ';
        var expected = '--a--b--c-#       ';
        var values = { a: 'a', b: 'b', c: 'c' };
        var result = e1.timeout(new Date(rxTestScheduler.now() + 100), null, rxTestScheduler);
        expectObservable(result).toBe(expected, values, defaultTimeoutError);
        expectSubscriptions(e1.subscriptions).toBe(e1subs);
    });
    it('should timeout specified Date with passed error while source emits', function () {
        var value = 'hello';
        var e1 = hot('--a--b--c--d--e--|');
        var e1subs = '^         !       ';
        var expected = '--a--b--c-#       ';
        var values = { a: 'a', b: 'b', c: 'c' };
        var result = e1.timeout(new Date(rxTestScheduler.now() + 100), value, rxTestScheduler);
        expectObservable(result).toBe(expected, values, value);
        expectSubscriptions(e1.subscriptions).toBe(e1subs);
    });
});
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