fw: RttEstimator
refs #1568
Change-Id: Ife59d8d4715e293aec44f8fbe24582bb684452c4
diff --git a/tests/daemon/fw/rtt-estimator.cpp b/tests/daemon/fw/rtt-estimator.cpp
new file mode 100644
index 0000000..b5af0ab
--- /dev/null
+++ b/tests/daemon/fw/rtt-estimator.cpp
@@ -0,0 +1,80 @@
+/* -*- 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 "fw/rtt-estimator.hpp"
+
+#include "tests/test-common.hpp"
+
+namespace nfd {
+namespace tests {
+
+BOOST_FIXTURE_TEST_SUITE(FwRttEstimator, BaseFixture)
+
+static inline double
+computeRtoAsFloatSeconds(RttEstimator& rtt)
+{
+ typedef time::duration<double, time::seconds::period> FloatSeconds;
+
+ RttEstimator::Duration rto = rtt.computeRto();
+ return time::duration_cast<FloatSeconds>(rto).count();
+}
+
+BOOST_AUTO_TEST_CASE(Basic)
+{
+ RttEstimator rtt;
+
+ for (int i = 0; i < 100; ++i) {
+ rtt.addMeasurement(time::seconds(5));
+ }
+ double rto1 = computeRtoAsFloatSeconds(rtt);
+ BOOST_CHECK_CLOSE(rto1, 5.0, 0.1);
+
+ rtt.doubleMultiplier();
+ double rto2 = computeRtoAsFloatSeconds(rtt);
+ BOOST_CHECK_CLOSE(rto2, 10.0, 0.1);
+
+ rtt.doubleMultiplier();
+ double rto3 = computeRtoAsFloatSeconds(rtt);
+ BOOST_CHECK_CLOSE(rto3, 20.0, 0.1);
+
+ rtt.addMeasurement(time::seconds(5)); // reset multiplier
+ double rto4 = computeRtoAsFloatSeconds(rtt);
+ BOOST_CHECK_CLOSE(rto4, 5.0, 0.1);
+
+ rtt.incrementMultiplier();
+ double rto5 = computeRtoAsFloatSeconds(rtt);
+ BOOST_CHECK_CLOSE(rto5, 10.0, 0.1);
+
+ for (int i = 0; i < 5; ++i) {
+ rtt.addMeasurement(time::seconds(6));
+ } // increased variance
+ double rto6 = computeRtoAsFloatSeconds(rtt);
+ BOOST_CHECK_GT(rto6, rto1);
+}
+
+BOOST_AUTO_TEST_SUITE_END()
+
+} // namespace tests
+} // namespace nfd