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

Change-Id: I78ea29938259fac288781bed12fb2399ac7eba26
diff --git a/tests/unit/util/log-module1.cpp b/tests/unit/util/log-module1.cpp
new file mode 100644
index 0000000..2099a75
--- /dev/null
+++ b/tests/unit/util/log-module1.cpp
@@ -0,0 +1,43 @@
+/* -*- 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 "util/logger.hpp"
+
+NDN_LOG_INIT(Module1);
+
+namespace ndn {
+namespace util {
+namespace tests {
+
+void
+logFromModule1()
+{
+  NDN_LOG_TRACE("trace" << 1);
+  NDN_LOG_DEBUG("debug" << 1);
+  NDN_LOG_INFO("info" << 1);
+  NDN_LOG_WARN("warn" << 1);
+  NDN_LOG_ERROR("error" << 1);
+  NDN_LOG_FATAL("fatal" << 1);
+}
+
+} // namespace tests
+} // namespace util
+} // namespace ndn