fw: Best Route Strategy version 2
refs #1871
Change-Id: I196a5ff0839f72caf9210af61ad54066242ba9c2
diff --git a/tests/daemon/fw/best-route-strategy2.cpp b/tests/daemon/fw/best-route-strategy2.cpp
new file mode 100644
index 0000000..e2104c8
--- /dev/null
+++ b/tests/daemon/fw/best-route-strategy2.cpp
@@ -0,0 +1,124 @@
+/* -*- 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/best-route-strategy2.hpp"
+#include "strategy-tester.hpp"
+
+#include "tests/test-common.hpp"
+#include "tests/limited-io.hpp"
+#include "tests/daemon/face/dummy-face.hpp"
+
+namespace nfd {
+namespace tests {
+
+BOOST_FIXTURE_TEST_SUITE(FwBestRouteStrategy2, BaseFixture)
+
+BOOST_AUTO_TEST_CASE(Forward)
+{
+ LimitedIo limitedIo;
+ Forwarder forwarder;
+ typedef StrategyTester<fw::BestRouteStrategy2> BestRouteStrategy2Tester;
+ BestRouteStrategy2Tester strategy(forwarder);
+
+ shared_ptr<DummyFace> face1 = make_shared<DummyFace>();
+ shared_ptr<DummyFace> face2 = make_shared<DummyFace>();
+ shared_ptr<DummyFace> face3 = make_shared<DummyFace>();
+ shared_ptr<DummyFace> face4 = make_shared<DummyFace>();
+ shared_ptr<DummyFace> face5 = make_shared<DummyFace>();
+ forwarder.addFace(face1);
+ forwarder.addFace(face2);
+ forwarder.addFace(face3);
+ forwarder.addFace(face4);
+ forwarder.addFace(face5);
+
+ Fib& fib = forwarder.getFib();
+ shared_ptr<fib::Entry> fibEntry = fib.insert(Name()).first;
+ fibEntry->addNextHop(face1, 10);
+ fibEntry->addNextHop(face2, 20);
+ fibEntry->addNextHop(face3, 30);
+
+ shared_ptr<Interest> interest = makeInterest("ndn:/BzgFBchqA");
+ Pit& pit = forwarder.getPit();
+ shared_ptr<pit::Entry> pitEntry = pit.insert(*interest).first;
+
+ const time::nanoseconds RETRANSMISSION60 = time::duration_cast<time::nanoseconds>(
+ fw::BestRouteStrategy2::MIN_RETRANSMISSION_INTERVAL * 0.6); // 60%
+ const time::nanoseconds RETRANSMISSION120 = time::duration_cast<time::nanoseconds>(
+ fw::BestRouteStrategy2::MIN_RETRANSMISSION_INTERVAL * 1.2); // 120%
+
+ pitEntry->insertOrUpdateInRecord(face1, *interest);
+ strategy.afterReceiveInterest(*face1, *interest, fibEntry, pitEntry);
+ BOOST_REQUIRE_EQUAL(strategy.m_sendInterestHistory.size(), 1);
+ BOOST_CHECK_EQUAL(strategy.m_sendInterestHistory.back().get<1>(), face2);
+ // face1 is downstream so it cannot be used at this time
+
+ limitedIo.run(LimitedIo::UNLIMITED_OPS, RETRANSMISSION60);
+ pitEntry->insertOrUpdateInRecord(face4, *interest);
+ strategy.afterReceiveInterest(*face4, *interest, fibEntry, pitEntry);
+ BOOST_REQUIRE_EQUAL(strategy.m_sendInterestHistory.size(), 1);
+ // ignored similar Interest
+
+ limitedIo.run(LimitedIo::UNLIMITED_OPS, RETRANSMISSION60);
+ pitEntry->insertOrUpdateInRecord(face4, *interest);
+ strategy.afterReceiveInterest(*face4, *interest, fibEntry, pitEntry);
+ BOOST_REQUIRE_EQUAL(strategy.m_sendInterestHistory.size(), 2);
+ BOOST_CHECK_EQUAL(strategy.m_sendInterestHistory.back().get<1>(), face1);
+ // accepted retransmission, forward to an unused upstream
+
+ limitedIo.run(LimitedIo::UNLIMITED_OPS, RETRANSMISSION120);
+ pitEntry->insertOrUpdateInRecord(face5, *interest);
+ strategy.afterReceiveInterest(*face5, *interest, fibEntry, pitEntry);
+ BOOST_REQUIRE_EQUAL(strategy.m_sendInterestHistory.size(), 3);
+ BOOST_CHECK_EQUAL(strategy.m_sendInterestHistory.back().get<1>(), face3);
+ // accepted similar Interest from new downstream, forward to an unused upstream
+
+ limitedIo.run(LimitedIo::UNLIMITED_OPS, RETRANSMISSION120);
+ pitEntry->insertOrUpdateInRecord(face4, *interest);
+ strategy.afterReceiveInterest(*face4, *interest, fibEntry, pitEntry);
+ BOOST_REQUIRE_EQUAL(strategy.m_sendInterestHistory.size(), 4);
+ BOOST_CHECK_EQUAL(strategy.m_sendInterestHistory.back().get<1>(), face2);
+ // accepted retransmission, forward to an eligible upstream with earliest OutRecord
+
+ limitedIo.run(LimitedIo::UNLIMITED_OPS, RETRANSMISSION60);
+ pitEntry->insertOrUpdateInRecord(face5, *interest);
+ strategy.afterReceiveInterest(*face5, *interest, fibEntry, pitEntry);
+ BOOST_REQUIRE_EQUAL(strategy.m_sendInterestHistory.size(), 4);
+ // ignored retransmission
+
+ fibEntry->removeNextHop(face1);
+
+ limitedIo.run(LimitedIo::UNLIMITED_OPS, RETRANSMISSION60);
+ pitEntry->insertOrUpdateInRecord(face5, *interest);
+ strategy.afterReceiveInterest(*face5, *interest, fibEntry, pitEntry);
+ BOOST_REQUIRE_EQUAL(strategy.m_sendInterestHistory.size(), 5);
+ BOOST_CHECK_EQUAL(strategy.m_sendInterestHistory.back().get<1>(), face3);
+ // accepted retransmission, forward to an eligible upstream with earliest OutRecord
+ // face1 cannot be used because it's gone from FIB entry
+}
+
+BOOST_AUTO_TEST_SUITE_END()
+
+} // namespace tests
+} // namespace nfd