public void BeAbleToGetAllActiveProvidersFromRepository() { var mockUnitOfWork = new Mock <IUnitOfWork>(); mockUnitOfWork.Setup(un => un.ProviderRepository.Get( It.IsAny <System.Linq.Expressions.Expression <Func <Provider, bool> > >(), null, "")); ProviderService providerService = new ProviderService(mockUnitOfWork.Object); bool getActiveProviders = true; IEnumerable <Provider> returnedProviders = providerService.GetAllProvidersAcoordingToState(getActiveProviders); mockUnitOfWork.VerifyAll(); }