@reactivex/rxjs
Version:
Reactive Extensions for modern JavaScript
65 lines • 2.48 kB
JavaScript
;
var chai_1 = require('chai');
var sinon = require('sinon');
var Rx = require('../../dist/cjs/Rx');
var Scheduler = Rx.Scheduler;
var queue = Scheduler.queue;
/** @test {Scheduler} */
describe('Scheduler.queue', function () {
it('should act like the async scheduler if delay > 0', function () {
var actionHappened = false;
var sandbox = sinon.sandbox.create();
var fakeTimer = sandbox.useFakeTimers();
queue.schedule(function () {
actionHappened = true;
}, 50);
chai_1.expect(actionHappened).to.be.false;
fakeTimer.tick(25);
chai_1.expect(actionHappened).to.be.false;
fakeTimer.tick(25);
chai_1.expect(actionHappened).to.be.true;
sandbox.restore();
});
it('should switch from synchronous to asynchronous at will', function () {
var sandbox = sinon.sandbox.create();
var fakeTimer = sandbox.useFakeTimers();
var asyncExec = false;
var state = [];
queue.schedule(function (index) {
state.push(index);
if (index === 0) {
this.schedule(1, 100);
}
else if (index === 1) {
asyncExec = true;
this.schedule(2, 0);
}
}, 0, 0);
chai_1.expect(asyncExec).to.be.false;
chai_1.expect(state).to.be.deep.equal([0]);
fakeTimer.tick(100);
chai_1.expect(asyncExec).to.be.true;
chai_1.expect(state).to.be.deep.equal([0, 1, 2]);
sandbox.restore();
});
it('should unsubscribe the rest of the scheduled actions if an action throws an error', function () {
var actions = [];
var action2Exec = false;
var action3Exec = false;
var errorValue = undefined;
try {
queue.schedule(function () {
actions.push(queue.schedule(function () { throw new Error('oops'); }), queue.schedule(function () { action2Exec = true; }), queue.schedule(function () { action3Exec = true; }));
});
}
catch (e) {
errorValue = e;
}
chai_1.expect(actions.every(function (action) { return action.closed; })).to.be.true;
chai_1.expect(action2Exec).to.be.false;
chai_1.expect(action3Exec).to.be.false;
chai_1.expect(errorValue).exist;
chai_1.expect(errorValue.message).to.equal('oops');
});
});
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