Moq设置不返回返回值

Question

出于某种原因，我的模拟设置似乎无法正常工作。

这是我的Moq设置：

_mockMfgViewRespository
            .Setup(r => r.Find(It.IsAny<Expression<Func<V_YO_POP_MFGITM, bool>>>(), It.IsAny<bool>(), It.IsAny<Expression<Func<V_YO_POP_MFGITM, object>>>())).
            Returns(GenerateViewReturnData());

GenerateViewReturnData返回类型为V_YO_POP_MFGITM的Queryable集合。

 Expression<Func<V_YO_POP_MFGITM, bool>> filter = x => x.VENDORID.Equals(vendorId) && x.VENDOR_SKU.Equals(partNumber);

            var viewResult = uow.MfgViewRepository.Find(filter);

viewResult始终具有空枚举。我已经尝试了我能想到的每一个组合，我的收藏品永远不会被退回。

编辑：添加了模拟设置：

 _mockMfgRepository = new Mock<IGenericRepository<YO_POP_MFGPO>>();
        _mockMfgViewRespository = new Mock<IGenericRepository<V_YO_POP_MFGITM>>();
        _mockFactory = new Mock<IUnitOfWorkFactory>();

        var uow = new Mock<IUnitOfWork>();
        uow.SetupGet(x => x.MfgRepository).Returns(_mockMfgRepository.Object);
        uow.SetupGet(x => x.MfgViewRepository).Returns(_mockMfgViewRespository.Object);

        _mockFactory.Setup(f => f.Create()).Returns(uow.Object);