@Override
public void testBigInteger(BigInteger v) throws Exception {
MessagePack msgpack = new MessagePack();
BufferPacker packer = msgpack.createBufferPacker();
packer.writeBigInteger(v);
byte[] bytes = packer.toByteArray();
BufferUnpacker unpacker = msgpack.createBufferUnpacker(bytes);
Value value = unpacker.readValue();
assertTrue(value.isInteger());
BigInteger ret = new Converter(value).readBigInteger();