Rename 'tests/unit-tests' directory to 'tests/unit'

Change-Id: I78ea29938259fac288781bed12fb2399ac7eba26
diff --git a/tests/unit/version.t.cpp b/tests/unit/version.t.cpp
new file mode 100644
index 0000000..7fdb50d
--- /dev/null
+++ b/tests/unit/version.t.cpp
@@ -0,0 +1,60 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2013-2018 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.
+ */
+
+#include "version.hpp"
+#include "common.hpp"
+
+#include "boost-test.hpp"
+
+#include <stdio.h>
+
+namespace ndn {
+namespace tests {
+
+BOOST_AUTO_TEST_SUITE(TestVersion)
+
+BOOST_AUTO_TEST_CASE(VersionNumber)
+{
+  BOOST_TEST_MESSAGE("NDN_CXX_VERSION = " + to_string(NDN_CXX_VERSION));
+
+  BOOST_CHECK_EQUAL(NDN_CXX_VERSION, NDN_CXX_VERSION_MAJOR * 1000000 +
+                                     NDN_CXX_VERSION_MINOR * 1000 +
+                                     NDN_CXX_VERSION_PATCH);
+}
+
+BOOST_AUTO_TEST_CASE(VersionString)
+{
+  BOOST_TEST_MESSAGE("NDN_CXX_VERSION_STRING = " NDN_CXX_VERSION_STRING);
+
+  BOOST_STATIC_ASSERT(NDN_CXX_VERSION_MAJOR < 1000);
+  BOOST_STATIC_ASSERT(NDN_CXX_VERSION_MINOR < 1000);
+  BOOST_STATIC_ASSERT(NDN_CXX_VERSION_PATCH < 1000);
+  char buf[12];
+  ::snprintf(buf, sizeof(buf), "%d.%d.%d",
+             NDN_CXX_VERSION_MAJOR, NDN_CXX_VERSION_MINOR, NDN_CXX_VERSION_PATCH);
+
+  BOOST_CHECK_EQUAL(NDN_CXX_VERSION_STRING, buf);
+}
+
+BOOST_AUTO_TEST_SUITE_END() // TestVersion
+
+} // namespace tests
+} // namespace ndn