face: link layer byte counts in FaceCounters

This commit declares the counters, but does not increment the new counters.

refs #1729

Change-Id: I9cd136fc65955192a92d567629a9aba2df8090f3
diff --git a/tests/daemon/face/face-counters.cpp b/tests/daemon/face/face-counters.cpp
new file mode 100644
index 0000000..3be0d88
--- /dev/null
+++ b/tests/daemon/face/face-counters.cpp
@@ -0,0 +1,79 @@
+/* -*- 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,
+ *                      The University of Memphis
+ *
+ * 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 "face/face-counters.hpp"
+#include "dummy-face.hpp"
+
+#include "tests/test-common.hpp"
+
+namespace nfd {
+namespace tests {
+
+BOOST_FIXTURE_TEST_SUITE(FaceFaceCounters, BaseFixture)
+
+BOOST_AUTO_TEST_CASE(PacketCnt)
+{
+  PacketCounter counter;
+
+  uint64_t observation = counter;//implicit convertible
+  BOOST_CHECK_EQUAL(observation, 0);
+
+  ++counter;
+  BOOST_CHECK_EQUAL(static_cast<int>(counter), 1);
+  ++counter;
+  ++counter;
+  BOOST_CHECK_EQUAL(static_cast<int>(counter), 3);
+}
+
+BOOST_AUTO_TEST_CASE(ByteCnt)
+{
+  ByteCounter counter;
+
+  uint64_t observation = counter;//implicit convertible
+  BOOST_CHECK_EQUAL(observation, 0);
+
+  counter += 20;
+  BOOST_CHECK_EQUAL(static_cast<int>(counter), 20);
+  counter += 80;
+  counter += 90;
+  BOOST_CHECK_EQUAL(static_cast<int>(counter), 190);
+}
+
+BOOST_AUTO_TEST_CASE(Counters)
+{
+  DummyFace face;
+  const FaceCounters& counters = face.getCounters();
+  BOOST_CHECK_EQUAL(counters.getNInInterests() , 0);
+  BOOST_CHECK_EQUAL(counters.getNInDatas()     , 0);
+  BOOST_CHECK_EQUAL(counters.getNOutInterests(), 0);
+  BOOST_CHECK_EQUAL(counters.getNOutDatas()    , 0);
+  BOOST_CHECK_EQUAL(counters.getNInBytes()     , 0);
+  BOOST_CHECK_EQUAL(counters.getNOutBytes()    , 0);
+}
+
+BOOST_AUTO_TEST_SUITE_END()
+
+} // namespace tests
+} // namespace nfd