fw: Adaptive SRTT-based Forwarding strategy
refs: #3566
Change-Id: Idae198bb0c2ae25e25aeceec0552b1c11be89c14
diff --git a/tests/daemon/fw/asf-measurements.t.cpp b/tests/daemon/fw/asf-measurements.t.cpp
new file mode 100644
index 0000000..2b83004
--- /dev/null
+++ b/tests/daemon/fw/asf-measurements.t.cpp
@@ -0,0 +1,130 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2014-2016, 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/asf-measurements.hpp"
+
+#include "tests/daemon/face/dummy-face.hpp"
+#include "tests/test-common.hpp"
+
+namespace nfd {
+namespace fw {
+namespace asf {
+namespace tests {
+
+using namespace nfd::tests;
+
+BOOST_AUTO_TEST_SUITE(Fw)
+BOOST_AUTO_TEST_SUITE(TestAsfMeasurements)
+
+BOOST_AUTO_TEST_SUITE(TestRttStats)
+
+BOOST_FIXTURE_TEST_CASE(Basic, BaseFixture)
+{
+ RttStats stats;
+
+ BOOST_CHECK_EQUAL(stats.getRtt(), RttStats::RTT_NO_MEASUREMENT);
+ BOOST_CHECK_EQUAL(stats.getSrtt(), RttStats::RTT_NO_MEASUREMENT);
+
+ // Receive Data back in 50ms
+ RttEstimator::Duration rtt(time::milliseconds(50));
+ stats.addRttMeasurement(rtt);
+
+ BOOST_CHECK_EQUAL(stats.getRtt(), rtt);
+ BOOST_CHECK_EQUAL(stats.getSrtt(), rtt);
+
+ // Receive Data back in 50ms
+ stats.addRttMeasurement(rtt);
+
+ BOOST_CHECK_EQUAL(stats.getRtt(), rtt);
+ BOOST_CHECK_EQUAL(stats.getSrtt(), rtt);
+
+ // Receive Data back with a higher RTT
+ RttEstimator::Duration higherRtt(time::milliseconds(100));
+ stats.addRttMeasurement(higherRtt);
+
+ BOOST_CHECK_EQUAL(stats.getRtt(), higherRtt);
+ BOOST_CHECK_GT(stats.getSrtt(), rtt);
+ BOOST_CHECK_LT(stats.getSrtt(), higherRtt);
+
+ // Simulate timeout
+ RttStats::Rtt previousSrtt = stats.getSrtt();
+
+ stats.recordTimeout();
+
+ BOOST_CHECK_EQUAL(stats.getRtt(), RttStats::RTT_TIMEOUT);
+ BOOST_CHECK_EQUAL(stats.getSrtt(), previousSrtt);
+}
+
+BOOST_AUTO_TEST_SUITE_END() // TestRttStats
+
+BOOST_AUTO_TEST_SUITE(TestFaceInfo)
+
+BOOST_FIXTURE_TEST_CASE(Basic, UnitTestTimeFixture)
+{
+ FaceInfo info;
+
+ scheduler::EventId id = scheduler::schedule(time::seconds(1), []{});
+ ndn::Name interestName("/ndn/interest");
+
+ // Receive Interest and forward to next hop; should update RTO information
+ info.setTimeoutEvent(id, interestName);
+ BOOST_CHECK_EQUAL(info.isTimeoutScheduled(), true);
+
+ // If the strategy tries to schedule an RTO when one is already scheduled, throw an exception
+ BOOST_CHECK_THROW(info.setTimeoutEvent(id, interestName), FaceInfo::Error);
+
+ // Receive Data
+ shared_ptr<Interest> interest = makeInterest(interestName);
+ shared_ptr<pit::Entry> pitEntry = make_shared<pit::Entry>(*interest);
+ std::shared_ptr<DummyFace> face = make_shared<DummyFace>();
+
+ pitEntry->insertOrUpdateOutRecord(face, *interest);
+
+ RttEstimator::Duration rtt(50);
+ this->advanceClocks(time::milliseconds(5), rtt);
+
+ info.recordRtt(pitEntry, *face);
+ info.cancelTimeoutEvent(interestName);
+
+ BOOST_CHECK_EQUAL(info.getRtt(), rtt);
+ BOOST_CHECK_EQUAL(info.getSrtt(), rtt);
+
+ // Send out another Interest which times out
+ info.setTimeoutEvent(id, interestName);
+
+ info.recordTimeout(interestName);
+ BOOST_CHECK_EQUAL(info.getRtt(), RttStats::RTT_TIMEOUT);
+ BOOST_CHECK_EQUAL(info.isTimeoutScheduled(), false);
+}
+
+BOOST_AUTO_TEST_SUITE_END() // TestFaceInfo
+
+BOOST_AUTO_TEST_SUITE_END() // TestAsfStrategy
+BOOST_AUTO_TEST_SUITE_END() // Fw
+
+} // namespace tests
+} // namespace asf
+} // namespace fw
+} // namespace nfd