@Override
  public List<ResponseInfo> sendAndPoll(List<RequestInfo> requestsToSend, Set<Integer> requestsToDrop,
      int pollTimeoutMs) {
    processedResponseCount = responseCount;
    List<ResponseInfo> responseInfoList = super.sendAndPoll(requestsToSend, requestsToDrop, pollTimeoutMs);
    responseCount += responseInfoList.size();
    return responseInfoList;
  }
This updates the processed request count along with normal send and poll actions.
{@inheritDoc}
ambry-router/src/test/java/com/github/ambry/router/MockNetworkClient.java