ASP.NET-MVC和MOQ

我开始为我们的项目建立单元测试。我们已经决定使用moq来帮助“模拟”存储库,因为我们不想对live db运行测试。

很明显我没有正确使用moq,如何编写getMessage测试?前两个似乎工作得很好。

getMessage测试的返回值始终为空,因此测试失败

private Mock<IMessageRepository> _mockRepository;
        private IMessageBoardService _service;

        [TestInitialize]
        public void Initialize()
        {
            _mockRepository = new Mock<IMessageRepository>();
            _service = new MessageBoardService(_mockRepository.Object);
        }

        [TestMethod]
        public void CreateMessage()
        {
            var result = _service.CreateMessage("Test", "Description", 8000, 0);
            Assert.IsNotNull(result);
        }

        [TestMethod]
        public void CreateComment()
        {
            var Message = _service.CreateMessage("Test", "Description", 8000, 0);
            var Result = _service.CreateComment("Test Comment", Message.MessageID, 0);
            Assert.IsNotNull(Result);
        }

        [TestMethod]
        public void GetMessage()
        {
            var Message = _service.CreateMessage("Test", "Description", 8000, 0);
            _service.AddMessage(Message);
            _service.Save();

            var RetMessage = _service.GetMessage(Message.MessageID); //Always returns Null

            Assert.IsNotNull(RetMessage);
        }

编辑==================================

下面呢?

[TestMethod]
        public void GetMessage()
        {
            var tmpMessage = _service.CreateMessage("Test", "Description", 5, 0);
            _mockRepository.Setup(r => r.GetMessage(It.IsAny<int>()))
                    .Returns(tmpMessage);

            var RetMessage = _service.GetMessage(tmpMessage.MessageID);

            Assert.IsNotNull(RetMessage);
        }