code: function () {
                  var d = WebAtoms.DI.resolve(WebAtoms.WindowService);
                  if (d instanceof MockWindowService) {
                      return d;
                  }
                  throw new Error("MockWindowService not yet setup");
              }
docs: DI resolved instance of MockWindowService (WindowService)
  @readonly
  @static
  @type {MockWindowService}
  @memberof MockWindowService