@reactivex/rxjs
Version:
Reactive Extensions for modern JavaScript
134 lines • 5.34 kB
JavaScript
;
var chai_1 = require('chai');
var Rx = require('../dist/cjs/Rx');
var Observable = Rx.Observable;
var Subscription = Rx.Subscription;
/** @test {Subscription} */
describe('Subscription', function () {
it('should not leak', function (done) {
var tearDowns = [];
var source1 = Observable.create(function (observer) {
return function () {
tearDowns.push(1);
};
});
var source2 = Observable.create(function (observer) {
return function () {
tearDowns.push(2);
throw new Error('oops, I am a bad unsubscribe!');
};
});
var source3 = Observable.create(function (observer) {
return function () {
tearDowns.push(3);
};
});
var subscription = Observable.merge(source1, source2, source3).subscribe();
setTimeout(function () {
chai_1.expect(function () {
subscription.unsubscribe();
}).to.throw(Rx.UnsubscriptionError);
chai_1.expect(tearDowns).to.deep.equal([1, 2, 3]);
done();
});
});
it('should not leak when adding a bad custom subscription to a subscription', function (done) {
var tearDowns = [];
var sub = new Subscription();
var source1 = Observable.create(function (observer) {
return function () {
tearDowns.push(1);
};
});
var source2 = Observable.create(function (observer) {
return function () {
tearDowns.push(2);
sub.add(({
unsubscribe: function () {
chai_1.expect(sub.closed).to.be.true;
throw new Error('Who is your daddy, and what does he do?');
}
}));
};
});
var source3 = Observable.create(function (observer) {
return function () {
tearDowns.push(3);
};
});
sub.add(Observable.merge(source1, source2, source3).subscribe());
setTimeout(function () {
chai_1.expect(function () {
sub.unsubscribe();
}).to.throw(Rx.UnsubscriptionError);
chai_1.expect(tearDowns).to.deep.equal([1, 2, 3]);
done();
});
});
describe('Subscription.add()', function () {
it('Should returns the self if the self is passed', function () {
var sub = new Subscription();
var ret = sub.add(sub);
chai_1.expect(ret).to.equal(sub);
});
it('Should returns Subscription.EMPTY if it is passed', function () {
var sub = new Subscription();
var ret = sub.add(Subscription.EMPTY);
chai_1.expect(ret).to.equal(Subscription.EMPTY);
});
it('Should returns Subscription.EMPTY if it is called with `void` value', function () {
var sub = new Subscription();
var ret = sub.add(undefined);
chai_1.expect(ret).to.equal(Subscription.EMPTY);
});
it('Should returns a new Subscription created with teardown function if it is passed a function', function () {
var sub = new Subscription();
var isCalled = false;
var ret = sub.add(function () {
isCalled = true;
});
ret.unsubscribe();
chai_1.expect(isCalled).to.equal(true);
});
it('Should wrap the AnonymousSubscription and return a subscription that unsubscribes and removes it when unsubbed', function () {
var sub = new Subscription();
var called = false;
var arg = {
unsubscribe: function () { return called = true; },
};
var ret = sub.add(arg);
chai_1.expect(called).to.equal(false);
chai_1.expect(sub._subscriptions.length).to.equal(1);
ret.unsubscribe();
chai_1.expect(called).to.equal(true);
chai_1.expect(sub._subscriptions.length).to.equal(0);
});
it('Should returns the passed one if passed a AnonymousSubscription having not function `unsubscribe` member', function () {
var sub = new Subscription();
var arg = {
isUnsubscribed: false,
unsubscribe: undefined,
};
var ret = sub.add(arg);
chai_1.expect(ret).to.equal(arg);
});
it('Should returns the passed one if the self has been unsubscribed', function () {
var main = new Subscription();
main.unsubscribe();
var child = new Subscription();
var ret = main.add(child);
chai_1.expect(ret).to.equal(child);
});
it('Should unsubscribe the passed one if the self has been unsubscribed', function () {
var main = new Subscription();
main.unsubscribe();
var isCalled = false;
var child = new Subscription(function () {
isCalled = true;
});
main.add(child);
chai_1.expect(isCalled).to.equal(true);
});
});
});
//# sourceMappingURL=Subscription-spec.js.map