@Override
public void testString(String v) throws Exception {
MessagePack msgpack = new MessagePack();
ByteArrayOutputStream out = new ByteArrayOutputStream();
Packer packer = msgpack.createPacker(out);
packer.writeString(v);
byte[] bytes = out.toByteArray();
BufferUnpacker unpacker = msgpack.createBufferUnpacker(bytes);
Value value = unpacker.readValue();
assertTrue(value.isRaw());
String ret = new Converter(value).readString();