diff --git a/tests/unit/dummy-client-face.hpp b/tests/unit/dummy-client-face.hpp
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+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2014, Regents of the University of California.
+ *
+ * This file is part of NDNS (Named Data Networking Domain Name Service).
+ * See AUTHORS.md for complete list of NDNS authors and contributors.
+ *
+ * NDNS is free software: you can redistribute it and/or modify it under the terms
+ * of the GNU General Public License as published by the Free Software Foundation,
+ * either version 3 of the License, or (at your option) any later version.
+ *
+ * NDNS is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE.  See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * NDNS, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/**
+ * Copyright (c) 2013-2014 Regents of the University of California.
+ *
+ * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
+ *
+ * ndn-cxx library is free software: you can redistribute it and/or modify it under the
+ * terms of the GNU Lesser General Public License as published by the Free Software
+ * Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * ndn-cxx library is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+ * PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more details.
+ *
+ * You should have received copies of the GNU General Public License and GNU Lesser
+ * General Public License along with ndn-cxx, e.g., in COPYING.md file.  If not, see
+ * <http://www.gnu.org/licenses/>.
+ *
+ * See AUTHORS.md for complete list of ndn-cxx authors and contributors.
+ */
+
+#ifndef NDNS_TESTS_UNIT_DUMMY_CLIENT_FACE_HPP
+#define NDNS_TESTS_UNIT_DUMMY_CLIENT_FACE_HPP
+
+#include <ndn-cxx/face.hpp>
+#include <ndn-cxx/transport/transport.hpp>
+#include <ndn-cxx/management/nfd-controller.hpp>
+#include <ndn-cxx/management/nfd-control-response.hpp>
+#include <ndn-cxx/util/event-emitter.hpp>
+
+
+namespace ndn {
+namespace tests {
+
+class DummyClientTransport : public ndn::Transport
+{
+public:
+  void
+  receive(const Block& block)
+  {
+    if (static_cast<bool>(m_receiveCallback))
+      m_receiveCallback(block);
+  }
+
+  virtual void
+  close()
+  {
+  }
+
+  virtual void
+  pause()
+  {
+  }
+
+  virtual void
+  resume()
+  {
+  }
+
+  virtual void
+  send(const Block& wire)
+  {
+    if (wire.type() == tlv::Interest) {
+      shared_ptr<Interest> interest = make_shared<Interest>(wire);
+      (*m_onInterest)(*interest, this);
+    }
+    else if (wire.type() == tlv::Data) {
+      shared_ptr<Data> data = make_shared<Data>(wire);
+      (*m_onData)(*data, this);
+    }
+  }
+
+  virtual void
+  send(const Block& header, const Block& payload)
+  {
+    this->send(payload);
+  }
+
+  boost::asio::io_service&
+  getIoService()
+  {
+    return *m_ioService;
+  }
+
+private:
+  friend class DummyClientFace;
+  util::EventEmitter<Interest, DummyClientTransport*>* m_onInterest;
+  util::EventEmitter<Data, DummyClientTransport*>* m_onData;
+};
+
+
+/** \brief Callback to connect
+ */
+inline void
+replyNfdRibCommands(const Interest& interest, DummyClientTransport* transport)
+{
+  static const Name localhostRegistration("/localhost/nfd/rib");
+  if (localhostRegistration.isPrefixOf(interest.getName())) {
+    shared_ptr<Data> okResponse = make_shared<Data>(interest.getName());
+    nfd::ControlParameters params(interest.getName().get(-5).blockFromValue());
+    params.setFaceId(1);
+    params.setOrigin(0);
+    if (interest.getName().get(3) == name::Component("register")) {
+      params.setCost(0);
+    }
+    nfd::ControlResponse resp;
+    resp.setCode(200);
+    resp.setBody(params.wireEncode());
+    okResponse->setContent(resp.wireEncode());
+    KeyChain keyChain;
+    keyChain.signWithSha256(*okResponse);
+
+    transport->getIoService().post(bind(&DummyClientTransport::receive, transport,
+                                        okResponse->wireEncode()));
+  }
+}
+
+/** \brief a client-side face for unit testing
+ */
+class DummyClientFace : public ndn::Face
+{
+public:
+  explicit
+  DummyClientFace(shared_ptr<DummyClientTransport> transport)
+    : Face(transport)
+    , m_transport(transport)
+  {
+    m_transport->m_onInterest = &onInterest;
+    m_transport->m_onData     = &onData;
+
+    enablePacketLogging();
+  }
+
+  DummyClientFace(shared_ptr<DummyClientTransport> transport, boost::asio::io_service& ioService)
+    : Face(transport, ioService)
+    , m_transport(transport)
+  {
+    m_transport->m_onInterest = &onInterest;
+    m_transport->m_onData     = &onData;
+
+    enablePacketLogging();
+  }
+
+  /** \brief cause the Face to receive a packet
+   */
+  template<typename Packet>
+  void
+  receive(const Packet& packet)
+  {
+    m_transport->receive(packet.wireEncode());
+  }
+
+  void
+  enablePacketLogging()
+  {
+    // @todo Replace with C++11 lambdas
+
+    onInterest += bind(static_cast<void(std::vector<Interest>::*)(const Interest&)>(
+                         &std::vector<Interest>::push_back),
+                       &m_sentInterests, _1);
+
+    onData += bind(static_cast<void(std::vector<Data>::*)(const Data&)>(
+                     &std::vector<Data>::push_back),
+                   &m_sentDatas, _1);
+  }
+
+  void
+  enableRegistrationReply()
+  {
+    onInterest += &replyNfdRibCommands;
+  }
+
+public:
+  /** \brief sent Interests
+   *  \note After .expressInterest, .processEvents must be called before
+   *        the Interest would show up here.
+   */
+  std::vector<Interest> m_sentInterests;
+  /** \brief sent Datas
+   *  \note After .put, .processEvents must be called before
+   *        the Interest would show up here.
+   */
+  std::vector<Data>     m_sentDatas;
+
+public:
+  /** \brief Event to be called whenever an Interest is received
+   *  \note After .expressInterest, .processEvents must be called before
+   *        the Interest would show up here.
+   */
+  util::EventEmitter<Interest, DummyClientTransport*> onInterest;
+
+  /** \brief Event to be called whenever a Data packet is received
+   *  \note After .put, .processEvents must be called before
+   *        the Interest would show up here.
+   */
+  util::EventEmitter<Data, DummyClientTransport*> onData;
+
+private:
+  shared_ptr<DummyClientTransport> m_transport;
+};
+
+inline shared_ptr<DummyClientFace>
+makeDummyClientFace()
+{
+  return make_shared<DummyClientFace>(make_shared<DummyClientTransport>());
+}
+
+inline shared_ptr<DummyClientFace>
+makeDummyClientFace(boost::asio::io_service& ioService)
+{
+  return make_shared<DummyClientFace>(make_shared<DummyClientTransport>(), ref(ioService));
+}
+
+
+} // namespace tests
+} // namespace ndn
+
+#endif // NDNS_TESTS_UNIT_DUMMY_CLIENT_FACE_HPP