src: Reorganizing source code in preparation to merge NRD code

Note that as of this commit, there are several changes in location of
compiled binaries in `build/` folder:

* `nfd` has been moved to `build/bin/nfd`
* `unit-tests` has been split into `unit-tests-core` and `unit-tests-daemon`

Change-Id: I2c830c117879edbaa5457d6423c13f0273285919
Refs: #1486
diff --git a/tests/daemon/face/dummy-face.hpp b/tests/daemon/face/dummy-face.hpp
new file mode 100644
index 0000000..7039286
--- /dev/null
+++ b/tests/daemon/face/dummy-face.hpp
@@ -0,0 +1,93 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2014  Regents of the University of California,
+ *                     Arizona Board of Regents,
+ *                     Colorado State University,
+ *                     University Pierre & Marie Curie, Sorbonne University,
+ *                     Washington University in St. Louis,
+ *                     Beijing Institute of Technology
+ *
+ * This file is part of NFD (Named Data Networking Forwarding Daemon).
+ * See AUTHORS.md for complete list of NFD authors and contributors.
+ *
+ * NFD 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.
+ *
+ * NFD 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
+ * NFD, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+#ifndef NFD_TESTS_NFD_FACE_DUMMY_FACE_HPP
+#define NFD_TESTS_NFD_FACE_DUMMY_FACE_HPP
+
+#include "face/face.hpp"
+#include "face/local-face.hpp"
+
+namespace nfd {
+namespace tests {
+
+/** \class DummyFace
+ *  \brief a Face for unit testing
+ */
+template<class FaceBase>
+class DummyFaceImpl : public FaceBase
+{
+public:
+  DummyFaceImpl()
+    : FaceBase(FaceUri("dummy://"), FaceUri("dummy://"))
+  {
+  }
+
+  virtual void
+  sendInterest(const Interest& interest)
+  {
+    this->onSendInterest(interest);
+    m_sentInterests.push_back(interest);
+    this->afterSend();
+  }
+
+  virtual void
+  sendData(const Data& data)
+  {
+    this->onSendData(data);
+    m_sentDatas.push_back(data);
+    this->afterSend();
+  }
+
+  virtual void
+  close()
+  {
+    this->onFail("close");
+  }
+
+  void
+  receiveInterest(const Interest& interest)
+  {
+    this->onReceiveInterest(interest);
+  }
+
+  void
+  receiveData(const Data& data)
+  {
+    this->onReceiveData(data);
+  }
+
+  EventEmitter<> afterSend;
+
+public:
+  std::vector<Interest> m_sentInterests;
+  std::vector<Data> m_sentDatas;
+};
+
+typedef DummyFaceImpl<Face> DummyFace;
+typedef DummyFaceImpl<LocalFace> DummyLocalFace;
+
+} // namespace tests
+} // namespace nfd
+
+#endif // NFD_TESTS_NFD_FACE_DUMMY_FACE_HPP