tests: remove reliance of other tests on WITH_TESTS

refs #3609

Change-Id: I8fa858d207cd060cfcda7c86af56dac4afb48fe1
diff --git a/tests/other/benchmark-helpers.hpp b/tests/other/benchmark-helpers.hpp
new file mode 100644
index 0000000..6dc7cf4
--- /dev/null
+++ b/tests/other/benchmark-helpers.hpp
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2014-2017,  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/>.
+ */
+
+#ifndef NFD_TESTS_OTHER_BENCHMARK_HELPERS_HPP
+#define NFD_TESTS_OTHER_BENCHMARK_HELPERS_HPP
+
+// suppress warnings from Boost.Test
+#pragma GCC system_header
+#pragma clang system_header
+
+#include <boost/test/unit_test.hpp>
+#include <boost/test/output_test_stream.hpp>
+
+#endif // NFD_TESTS_OTHER_BENCHMARK_HELPERS_HPP