public void DroppableNotAcceptTarget()
        {
            var droppablePage = new DroppablePage(this.driver);

            droppablePage.AcceptNotValidDragAndDrop();
            droppablePage.AssertNotAcceptTargetAttributeValue("ui-widget-header ui-droppable");

            droppablePage.AcceptNotValidDragAndDrop(280, 40);
            droppablePage.AssertNotAcceptTargetAttributeValue("ui-widget-header ui-droppable");
        }