diff --git a/tests/unit-tests/tests-common.hpp b/tests/unit-tests/tests-common.hpp
new file mode 100644
index 0000000..1c51eae
--- /dev/null
+++ b/tests/unit-tests/tests-common.hpp
@@ -0,0 +1,44 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2011-2015  Regents of the University of California.
+ *
+ * This file is part of ndnSIM. See AUTHORS for complete list of ndnSIM authors and
+ * contributors.
+ *
+ * ndnSIM 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.
+ *
+ * ndnSIM 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
+ * ndnSIM, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+#ifndef NDNSIM_TESTS_UNIT_TESTS_TESTS_COMMON_HPP
+#define NDNSIM_TESTS_UNIT_TESTS_TESTS_COMMON_HPP
+
+#include "ns3/core-module.h"
+#include "boost-test.hpp"
+#include "model/ndn-global-router.hpp"
+
+namespace ns3 {
+namespace ndn {
+
+class CleanupFixture
+{
+public:
+  ~CleanupFixture()
+  {
+    Simulator::Destroy();
+    Names::Clear();
+    GlobalRouter::clear();
+  }
+};
+
+} // namespace ndn
+} // namespace ns3
+
+#endif // NDNSIM_TESTS_UNIT_TESTS_TESTS_COMMON_HPP