### Question:
DataService { public List<CardBin> getCardBins(){ CardBinRequest.Builder request = CardBinRequest.newBuilder(); request.setUserName(rpcUserName); request.setPassword(rpcPassword); CardBinResponse response = client.execute(CARD_BIN_SERVICE_NAME, request.build(), CardBinResponse.class); return response.getCardBinList(); } DataService(RpcServiceClient client, String rpcUserName, String rpcPassword); List<CardBin> getCardBins();  }### Answer:
@Test public void testGetCardBin(){ assertEquals(service.getCardBins().size(), 4856); }