sblum-google-tag-manager--unit-test.js

describe("Queue model", function () {
    let mockQueue;

    beforeEach(function() {
        mockQueue = new Queue();
    });

    it("expect count to be one when added one element", function() {
        mockQueue.addElement({
           "eventObject": "https://www.google.de",
           "eventType": "download"
        });
        expect(mockQueue.count()).toBe(1);
        expect(mockQueue.getElement(0)).toEqual(Object({
            eventObject: "https://www.google.de", eventType: "download"
        }));
    });
});