@Override
public void testBigInteger(BigInteger v) throws Exception {
MessagePack msgpack = new MessagePack();
Unconverter packer = new Unconverter(msgpack);
packer.writeBigInteger(v);
Value r = packer.getResult();
Converter unpacker = new Converter(msgpack, r);
BigInteger ret = unpacker.readBigInteger();
assertEquals(v, ret);
}