public void CreateConcept_Returns_Null_Data_When_RepoInsert_Throws_Exception() { A.CallTo(() => ConceptRepository.Insert(A <Concept> ._)).Throws <Exception>(); var mockConcept = Mock.MockCreateOrUpdateConcept(); var viewModel = Service.CreateConcept(mockConcept, _userInfo); Assert.Null(viewModel.Data); }