### Question:
GlobalBeginResponseConvertor implements PbConvertor<GlobalBeginResponse, GlobalBeginResponseProto> { @Override public GlobalBeginResponseProto convert2Proto(GlobalBeginResponse globalBeginResponse) { final short typeCode = globalBeginResponse.getTypeCode(); final AbstractMessageProto abstractMessage = AbstractMessageProto.newBuilder().setMessageType( MessageTypeProto.forNumber(typeCode)).build(); final String msg = globalBeginResponse.getMsg(); final AbstractResultMessageProto abstractResultMessageProto = AbstractResultMessageProto.newBuilder().setMsg( msg == null ? "" : msg).setResultCode(ResultCodeProto.valueOf(globalBeginResponse.getResultCode().name())) .setAbstractMessage(abstractMessage).build(); final AbstractTransactionResponseProto abstractTransactionRequestProto = AbstractTransactionResponseProto .newBuilder().setAbstractResultMessage(abstractResultMessageProto).setTransactionExceptionCode( TransactionExceptionCodeProto.valueOf(globalBeginResponse.getTransactionExceptionCode().name())) .build(); final String extraData = globalBeginResponse.getExtraData(); GlobalBeginResponseProto result = GlobalBeginResponseProto.newBuilder().setAbstractTransactionResponse( abstractTransactionRequestProto).setExtraData(extraData == null ? "" : extraData).setXid( globalBeginResponse.getXid()).build(); return result; }  @Override GlobalBeginResponseProto convert2Proto(GlobalBeginResponse globalBeginResponse); @Override GlobalBeginResponse convert2Model(GlobalBeginResponseProto globalBeginResponseProto);  }### Answer:
@Test public void convert2Proto() { GlobalBeginResponse globalBeginResponse = new GlobalBeginResponse(); globalBeginResponse.setResultCode(ResultCode.Failed); globalBeginResponse.setMsg("msg"); globalBeginResponse.setExtraData("extraData"); globalBeginResponse.setXid("xid"); globalBeginResponse.setTransactionExceptionCode(TransactionExceptionCode.BranchRollbackFailed_Retriable); GlobalBeginResponseConvertor convertor = new GlobalBeginResponseConvertor(); GlobalBeginResponseProto proto = convertor.convert2Proto(globalBeginResponse); GlobalBeginResponse real = convertor.convert2Model(proto); assertThat((real.getTypeCode())).isEqualTo(globalBeginResponse.getTypeCode()); assertThat((real.getMsg())).isEqualTo(globalBeginResponse.getMsg()); assertThat((real.getResultCode())).isEqualTo(globalBeginResponse.getResultCode()); assertThat((real.getTransactionExceptionCode())).isEqualTo(globalBeginResponse.getTransactionExceptionCode()); }