tests+ci: Add and enable a partial unit test coverage

Change-Id: I6dbc5cf4d68679bd6f943322f572313884c8aef7
Refs: #2369
diff --git a/tests/unit-tests/helper/ndn-strategy-choice-helper.t.cpp b/tests/unit-tests/helper/ndn-strategy-choice-helper.t.cpp
new file mode 100644
index 0000000..c4f1ebc
--- /dev/null
+++ b/tests/unit-tests/helper/ndn-strategy-choice-helper.t.cpp
@@ -0,0 +1,136 @@
+/* -*- 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/>.
+ **/
+
+#include "helper/ndn-strategy-choice-helper.hpp"
+#include "helper/ndn-face-container.hpp"
+#include "model/ndn-net-device-face.hpp"
+
+#include "ns3/node-container.h"
+#include "ns3/point-to-point-net-device.h"
+#include "ns3/point-to-point-grid.h"
+#include "ns3/node.h"
+#include "ns3/core-module.h"
+#include "ns3/network-module.h"
+#include "ns3/point-to-point-module.h"
+#include "ns3/ndnSIM-module.h"
+
+#include "../tests-common.hpp"
+
+namespace ns3 {
+namespace ndn {
+
+BOOST_FIXTURE_TEST_SUITE(TestStrategyChoiceHelper, CleanupFixture)
+
+BOOST_AUTO_TEST_CASE(GridScenario)
+{
+  ofstream file("/tmp/topo3.txt");
+  file  << "router\n\n"
+        << "#node city  y x mpi-partition\n"
+        << "A3  NA  10 10 1\n"
+        << "B3  NA  20 10 1\n"
+        << "C3  NA  10 20 1\n"
+        << "D3  NA  20 20 1\n\n"
+        << "link\n\n"
+        << "# from  to  capacity  metric  delay queue\n"
+        << "A3      B3  10Mbps    100 1ms 500\n"
+        << "A3      C3  10Mbps    200 1ms 500\n"
+        << "B3      D3  10Mbps    100 1ms 500\n"
+        << "C3      D3  10Mbps    200 1ms 500\n";
+  file.close();
+
+  AnnotatedTopologyReader topologyReader("");
+  topologyReader.SetFileName("/tmp/topo3.txt");
+  topologyReader.Read();
+
+  // Install NDN stack on all nodes
+  ndn::StackHelper ndnHelper;
+  Ptr<FaceContainer> node_faceContainer = ndnHelper.InstallAll();
+  GlobalRoutingHelper ndnGlobalRoutingHelper;
+  ndnGlobalRoutingHelper.InstallAll();
+
+  // Install different forwarding strategies
+  StrategyChoiceHelper::Install(Names::Find<Node>("A3"), "/prefix",
+                                "/localhost/nfd/strategy/broadcast");
+  StrategyChoiceHelper::Install(Names::Find<Node>("B3"), "/prefix",
+                                "/localhost/nfd/strategy/best-route");
+  StrategyChoiceHelper::Install(Names::Find<Node>("C3"), "/prefix",
+                                "/localhost/nfd/strategy/broadcast");
+  StrategyChoiceHelper::Install(Names::Find<Node>("D3"), "/prefix",
+                                "/localhost/nfd/strategy/best-route");
+
+  AppHelper consumerHelper("ns3::ndn::ConsumerCbr");
+  consumerHelper.SetPrefix("/prefix");
+  consumerHelper.SetAttribute("Frequency", StringValue("100")); // 100 interests a second
+  consumerHelper.Install(Names::Find<Node>("A3"));
+
+  AppHelper producerHelper("ns3::ndn::Producer");
+  producerHelper.SetPrefix("/prefix");
+  producerHelper.SetAttribute("PayloadSize", StringValue("1024"));
+  producerHelper.Install(Names::Find<Node>("D3"));
+
+  // Add /prefix origins to ndn::GlobalRouter
+  ndnGlobalRoutingHelper.AddOrigins("/prefix", Names::Find<Node>("D3"));
+
+  // Calculate and install FIBs
+  GlobalRoutingHelper::CalculateRoutes();
+
+  // Node0 is consumer which is connected to intermediate Node1 and Node2
+
+  FaceContainer::Iterator IntermediateNode1Face1Iterator = node_faceContainer->Begin() + 2; // Node1 with strategy broadcast
+  FaceContainer::Iterator IntermediateNode1Face2Iterator = node_faceContainer->Begin() + 3;
+
+  FaceContainer::Iterator IntermediateNode2Face1Iterator = node_faceContainer->Begin() + 4; // Node2 with strategy best route
+  FaceContainer::Iterator IntermediateNode2Face2Iterator = node_faceContainer->Begin() + 5;
+
+  FaceContainer::Iterator ProducerFaceIterator1 = node_faceContainer->Begin() + 6;
+  FaceContainer::Iterator ProducerFaceIterator2 = node_faceContainer->Begin() + 7;
+
+  auto Producer_netDeviceFace1 = std::dynamic_pointer_cast<NetDeviceFace>(node_faceContainer->Get(ProducerFaceIterator1));
+  auto Producer_netDeviceFace2 = std::dynamic_pointer_cast<NetDeviceFace>(node_faceContainer->Get(ProducerFaceIterator2));
+
+  auto IntermediateNode1_netDeviceFace1 = std::dynamic_pointer_cast<NetDeviceFace>(node_faceContainer->Get(IntermediateNode1Face1Iterator));
+  auto IntermediateNode1_netDeviceFace2 = std::dynamic_pointer_cast<NetDeviceFace>(node_faceContainer->Get(IntermediateNode1Face2Iterator));
+
+  auto IntermediateNode2_netDeviceFace1 = std::dynamic_pointer_cast<NetDeviceFace>(node_faceContainer->Get(IntermediateNode2Face1Iterator));
+  auto IntermediateNode2_netDeviceFace2 = std::dynamic_pointer_cast<NetDeviceFace>(node_faceContainer->Get(IntermediateNode2Face2Iterator));
+
+  Simulator::Stop(Seconds(5.0));
+  Simulator::Run();
+
+  ::ndn::nfd::FaceStatus producerFace1Status = Producer_netDeviceFace1->getFaceStatus();
+  ::ndn::nfd::FaceStatus producerFace2Status = Producer_netDeviceFace2->getFaceStatus();
+
+  ::ndn::nfd::FaceStatus IntermediateNode1Face1Status = IntermediateNode1_netDeviceFace1->getFaceStatus();
+  ::ndn::nfd::FaceStatus IntermediateNode1Face2Status = IntermediateNode1_netDeviceFace2->getFaceStatus();
+
+  ::ndn::nfd::FaceStatus IntermediateNode2Face1Status = IntermediateNode2_netDeviceFace1->getFaceStatus();
+  ::ndn::nfd::FaceStatus IntermediateNode2Face2Status = IntermediateNode2_netDeviceFace2->getFaceStatus();
+
+  BOOST_CHECK_EQUAL(producerFace1Status.getNInInterests(), 500);
+  BOOST_CHECK_EQUAL(producerFace2Status.getNInInterests(), 0);
+  BOOST_CHECK_EQUAL(IntermediateNode1Face1Status.getNInInterests(), 500);
+  BOOST_CHECK_EQUAL(IntermediateNode1Face2Status.getNInInterests(), 0);
+  BOOST_CHECK_EQUAL(IntermediateNode2Face1Status.getNInInterests(), 0);
+  BOOST_CHECK_EQUAL(IntermediateNode2Face2Status.getNInInterests(), 0);
+}
+
+BOOST_AUTO_TEST_SUITE_END()
+
+} // namespace ndn
+} // namespace ns3