public void OutOfBoundReturnsNull()
            {
                const string OutOfBoundString = "79000000000000000000000000000000";

                var result = OutOfBoundString.ConvertToNullable().Decimal.Parse();

                result.HasValue.Should().BeFalse();
            }
            public void OutOfBoundReturnsNull()
            {
                const string OutOfBoundString = "3.4e39";

                var result = OutOfBoundString.ConvertToNullable().Single.Parse();

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