firstResultEventTest.js

(function (L) {
    "use strict";

    describe("lms.events 'first-results'", function () {
        var eventHub;

        beforeEach(function () {
            eventHub = FINN.eventHub.create();
            L.setupFirstResultsEvent(eventHub);
        });

        function setupFirstResultsListener() {
            var listener = sinon.spy();
            eventHub.subscribe("first-results", listener);
            return listener;
        }

        it("fires on first polling-response with offers", function () {
            var listener = setupFirstResultsListener();

            var resultWithOffers = { offers: [{}] };
            eventHub.publish("polling-response", resultWithOffers);

            assert.calledOnceWith(listener, resultWithOffers);
        });

        it("does not fire on missing offers", function () {
            var listener = setupFirstResultsListener();

            eventHub.publish("polling-response", {});

            refute.called(listener);
        });

        it("does not fire on empty offers", function () {
            var listener = setupFirstResultsListener();

            eventHub.publish("polling-response", { offers: [] });

            refute.called(listener);
        });

        it("fires only once", function () {
            var listener = setupFirstResultsListener();
            var result = { offers: [{}] };

            eventHub.publish("polling-response", result);
            eventHub.publish("polling-response", result);

            assert.calledOnce(listener);
        });
    });
}(FINN.travel.lms));