public void ValidationErrorsThrowModelValidationException()
{
var uow = new EFUnitOfWorkFactory().Create();
Action act = () =>
{
var repo = new PeopleRepository();
repo.Add(new Person());
uow.Commit(true);
};
act.ShouldThrow <ModelValidationException>().WithMessage("The FirstName field is required", ComparisonMode.Substring);
uow.Undo();
}