@Override
public void testDouble(double v) throws Exception {
MessagePack msgpack = new MessagePack();
Unconverter packer = new Unconverter(msgpack);
packer.writeDouble(v);
Value r = packer.getResult();
Converter unpacker = new Converter(msgpack, r);
double ret = unpacker.readDouble();
assertEquals(v, ret, 10e-10);
}