@reactivex/rxjs
Version:
Reactive Extensions for modern JavaScript
132 lines • 5.39 kB
JavaScript
"use strict";
var Rx = require('../../dist/cjs/Rx');
var Observable = Rx.Observable;
var Notification = Rx.Notification;
/** @test {dematerialize} */
describe('Observable.prototype.dematerialize', function () {
asDiagram('dematerialize')('should dematerialize an Observable', function () {
var values = {
a: '{x}',
b: '{y}',
c: '{z}',
d: '|'
};
var e1 = hot('--a--b--c--d-|', values);
var expected = '--x--y--z--|';
var result = e1.map(function (x) {
if (x === '|') {
return Notification.createComplete();
}
else {
return Notification.createNext(x.replace('{', '').replace('}', ''));
}
}).dematerialize();
expectObservable(result).toBe(expected);
});
it('should dematerialize a happy stream', function () {
var values = {
a: Notification.createNext('w'),
b: Notification.createNext('x'),
c: Notification.createNext('y'),
d: Notification.createComplete()
};
var e1 = hot('--a--b--c--d--|', values);
var e1subs = '^ !';
var expected = '--w--x--y--|';
expectObservable(e1.dematerialize()).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
it('should dematerialize a sad stream', function () {
var values = {
a: Notification.createNext('w'),
b: Notification.createNext('x'),
c: Notification.createNext('y'),
d: Notification.createError('error')
};
var e1 = hot('--a--b--c--d--|', values);
var e1subs = '^ !';
var expected = '--w--x--y--#';
expectObservable(e1.dematerialize()).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
it('should dematerialize stream does not completes', function () {
var e1 = hot('------');
var e1subs = '^';
var expected = '-';
expectObservable(e1.dematerialize()).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
it('should dematerialize stream never completes', function () {
var e1 = cold('-');
var e1subs = '^';
var expected = '-';
expectObservable(e1.dematerialize()).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
it('should dematerialize stream does not emit', function () {
var e1 = hot('----|');
var e1subs = '^ !';
var expected = '----|';
expectObservable(e1.dematerialize()).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
it('should dematerialize empty stream', function () {
var e1 = cold('|');
var e1subs = '(^!)';
var expected = '|';
expectObservable(e1.dematerialize()).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
it('should dematerialize stream throws', function () {
var error = 'error';
var e1 = hot('(x|)', { x: Notification.createError(error) });
var e1subs = '(^!)';
var expected = '#';
expectObservable(e1.dematerialize()).toBe(expected, null, error);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
it('should allow unsubscribing early and explicitly', function () {
var values = {
a: Notification.createNext('w'),
b: Notification.createNext('x')
};
var e1 = hot('--a--b--c--d--|', values);
var e1subs = '^ ! ';
var expected = '--w--x-- ';
var unsub = ' ! ';
var result = e1.dematerialize();
expectObservable(result, unsub).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
it('should not break unsubscription chains when unsubscribed explicitly', function () {
var values = {
a: Notification.createNext('w'),
b: Notification.createNext('x')
};
var e1 = hot('--a--b--c--d--|', values);
var e1subs = '^ ! ';
var expected = '--w--x-- ';
var unsub = ' ! ';
var result = e1
.mergeMap(function (x) { return Observable.of(x); })
.dematerialize()
.mergeMap(function (x) { return Observable.of(x); });
expectObservable(result, unsub).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
it('should dematerialize and completes when stream compltes with complete notification', function () {
var e1 = hot('----(a|)', { a: Notification.createComplete() });
var e1subs = '^ !';
var expected = '----|';
expectObservable(e1.dematerialize()).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
it('should dematerialize and completes when stream emits complete notification', function () {
var e1 = hot('----a--|', { a: Notification.createComplete() });
var e1subs = '^ !';
var expected = '----|';
expectObservable(e1.dematerialize()).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
});
//# sourceMappingURL=dematerialize-spec.js.map