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/fw/face-table.cpp b/tests/daemon/fw/face-table.cpp
new file mode 100644
index 0000000..daf9256
--- /dev/null
+++ b/tests/daemon/fw/face-table.cpp
@@ -0,0 +1,139 @@
+/* -*- 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/>.
+ **/
+
+#include "fw/face-table.hpp"
+#include "fw/forwarder.hpp"
+
+#include "tests/test-common.hpp"
+#include "tests/daemon/face/dummy-face.hpp"
+
+namespace nfd {
+namespace tests {
+
+BOOST_FIXTURE_TEST_SUITE(FwFaceTable, BaseFixture)
+
+static inline void
+saveFaceId(std::vector<FaceId>& faceIds, shared_ptr<Face> face)
+{
+  faceIds.push_back(face->getId());
+}
+
+BOOST_AUTO_TEST_CASE(AddRemove)
+{
+  Forwarder forwarder;
+
+  FaceTable& faceTable = forwarder.getFaceTable();
+  std::vector<FaceId> onAddHistory;
+  std::vector<FaceId> onRemoveHistory;
+  faceTable.onAdd    += bind(&saveFaceId, boost::ref(onAddHistory   ), _1);
+  faceTable.onRemove += bind(&saveFaceId, boost::ref(onRemoveHistory), _1);
+
+  shared_ptr<Face> face1 = make_shared<DummyFace>();
+  shared_ptr<Face> face2 = make_shared<DummyFace>();
+
+  BOOST_CHECK_EQUAL(face1->getId(), INVALID_FACEID);
+  BOOST_CHECK_EQUAL(face2->getId(), INVALID_FACEID);
+
+  forwarder.addFace(face1);
+  forwarder.addFace(face2);
+
+  BOOST_CHECK_NE(face1->getId(), INVALID_FACEID);
+  BOOST_CHECK_NE(face2->getId(), INVALID_FACEID);
+  BOOST_CHECK_NE(face1->getId(), face2->getId());
+
+  FaceId oldId1 = face1->getId();
+  faceTable.add(face1);
+  BOOST_CHECK_EQUAL(face1->getId(), oldId1);
+  BOOST_CHECK_EQUAL(faceTable.size(), 2);
+
+  BOOST_REQUIRE_EQUAL(onAddHistory.size(), 2);
+  BOOST_CHECK_EQUAL(onAddHistory[0], face1->getId());
+  BOOST_CHECK_EQUAL(onAddHistory[1], face2->getId());
+
+  face1->close();
+
+  BOOST_CHECK_EQUAL(face1->getId(), INVALID_FACEID);
+
+  BOOST_REQUIRE_EQUAL(onRemoveHistory.size(), 1);
+  BOOST_CHECK_EQUAL(onRemoveHistory[0], onAddHistory[0]);
+}
+
+BOOST_AUTO_TEST_CASE(Enumerate)
+{
+  Forwarder forwarder;
+  FaceTable& faceTable = forwarder.getFaceTable();
+
+  shared_ptr<Face> face1 = make_shared<DummyFace>();
+  shared_ptr<Face> face2 = make_shared<DummyFace>();
+  bool hasFace1 = false, hasFace2 = false;
+
+  BOOST_CHECK_EQUAL(faceTable.size(), 0);
+  BOOST_CHECK_EQUAL(std::distance(faceTable.begin(), faceTable.end()), faceTable.size());
+
+  faceTable.add(face1);
+  BOOST_CHECK_EQUAL(faceTable.size(), 1);
+  BOOST_CHECK_EQUAL(std::distance(faceTable.begin(), faceTable.end()), faceTable.size());
+  hasFace1 = hasFace2 = false;
+  for (FaceTable::const_iterator it = faceTable.begin(); it != faceTable.end(); ++it) {
+    if (*it == face1) {
+      hasFace1 = true;
+    }
+  }
+  BOOST_CHECK(hasFace1);
+
+  faceTable.add(face2);
+  BOOST_CHECK_EQUAL(faceTable.size(), 2);
+  BOOST_CHECK_EQUAL(std::distance(faceTable.begin(), faceTable.end()), faceTable.size());
+  hasFace1 = hasFace2 = false;
+  for (FaceTable::const_iterator it = faceTable.begin(); it != faceTable.end(); ++it) {
+    if (*it == face1) {
+      hasFace1 = true;
+    }
+    if (*it == face2) {
+      hasFace2 = true;
+    }
+  }
+  BOOST_CHECK(hasFace1);
+  BOOST_CHECK(hasFace2);
+
+  face1->close();
+  BOOST_CHECK_EQUAL(faceTable.size(), 1);
+  BOOST_CHECK_EQUAL(std::distance(faceTable.begin(), faceTable.end()), faceTable.size());
+  hasFace1 = hasFace2 = false;
+  for (FaceTable::const_iterator it = faceTable.begin(); it != faceTable.end(); ++it) {
+    if (*it == face1) {
+      hasFace1 = true;
+    }
+    if (*it == face2) {
+      hasFace2 = true;
+    }
+  }
+  BOOST_CHECK(!hasFace1);
+  BOOST_CHECK(hasFace2);
+}
+
+BOOST_AUTO_TEST_SUITE_END()
+
+} // namespace tests
+} // namespace nfd