public void ChangeAidType_WhenDatabaseThrowsError_ShouldThrowException() { //Arrange mockDataAccess .Setup(x => x.ExecuteNonQuery( It.IsAny <string>(), "prc_ISISMDSQReferralSave", It.IsAny <CommandType>(), It.IsAny <SqlParameter[]>(), ref It.Ref <List <SqlParameter> > .IsAny)) .Throws <Exception>(); //Act and Assert Assert.Throws <Exception>(() => programRequest.ChangeAidType(10, 1, 10)); mockExceptionHandling.VerifyAll(); }