public void AddBacklogItemToSprintTest()
        {
            //Arrange
            ScrumBoard  board       = new ScrumBoard();
            ScrumMaster master      = new ScrumMaster();
            Sprint      sprint      = new Sprint("sprint 1", DateTime.Now, DateTime.Now.AddDays(14), master);
            Backlog     backlog     = new Backlog();
            BacklogItem backlogitem = new BacklogItem(backlog, "test", 8);

            //Act
            project.AddBoard(board);
            board.AddSprint(sprint);
            board.AddBacklogItem(backlogitem);

            //Assert
            Assert.IsNotNull(project.GetBoard().getSprints());
            Assert.IsTrue(sprint.backlog.backlogItems.Contains(backlogitem));
        }