public void GivenUserRegisterModel_WhenHavingUsernameWithMoreThan50Characters_ThenResultShouldBeInvalid()
        {
            var model = UserRegisterModelFactory.WithUsernameHavingMoreThan50Characters();

            var validator = new UserRegisterModelValidator();

            var result = validator.Validate(model);

            result.IsValid.Should().BeFalse();
        }