public void ToUInt64()
{
var converter = ConverterFactory.Create <decimal, ulong>();
Assert.Equal(ManualConverter.DecimalToUInt64(0m), converter(0m));
Assert.Equal(ManualConverter.DecimalToUInt64(1m), converter(1m));
//Assert.Equal(ManualConverter.DecimalToUInt64(-1m), converter(-1m));
//Assert.Equal(ManualConverter.DecimalToUInt64(Decimal.MinValue), converter(Decimal.MinValue));
//Assert.Equal(ManualConverter.DecimalToUInt64(Decimal.MaxValue), converter(Decimal.MaxValue));
}