tests/route/test-name-prefix-table.cpp - NLSR - Gitiles

 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
  * Copyright (c) 2014-2020,  The University of Memphis,
  *                           Regents of the University of California,
  *                           Arizona Board of Regents.
  *
  * This file is part of NLSR (Named-data Link State Routing).
  * See AUTHORS.md for complete list of NLSR authors and contributors.
  *
  * NLSR 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.
  *
  * NLSR 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
  * NLSR, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
  */

 #include "route/name-prefix-table.hpp"
 #include "nlsr.hpp"
 #include "../test-common.hpp"

 #include <ndn-cxx/util/dummy-client-face.hpp>

 namespace nlsr {
 namespace test {

 class NamePrefixTableFixture : public UnitTestTimeFixture
 {
 public:
   NamePrefixTableFixture()
     : face(m_ioService, m_keyChain)
     , conf(face, m_keyChain)
     , nlsr(face, m_keyChain, conf)
     , lsdb(nlsr.m_lsdb)
     , npt(nlsr.m_namePrefixTable)
   {
   }

 public:
   ndn::util::DummyClientFace face;
   ConfParameter conf;
   Nlsr nlsr;

   Lsdb& lsdb;
   NamePrefixTable& npt;
 };

 BOOST_AUTO_TEST_SUITE(TestNamePrefixTable)

 BOOST_FIXTURE_TEST_CASE(Bupt, NamePrefixTableFixture)
 {
   conf.setNetwork("/ndn");
   conf.setSiteName("/router");
   conf.setRouterName("/a");
   conf.buildRouterAndSyncUserPrefix();

   RoutingTable& routingTable = nlsr.m_routingTable;
   routingTable.setRoutingCalcInterval(0);

   Adjacent thisRouter(conf.getRouterPrefix(), ndn::FaceUri("udp4://10.0.0.1"), 0, Adjacent::STATUS_ACTIVE, 0, 0);

   ndn::Name buptRouterName("/ndn/cn/edu/bupt/%C1.Router/bupthub");
   Adjacent bupt(buptRouterName, ndn::FaceUri("udp4://10.0.0.2"), 0, Adjacent::STATUS_ACTIVE, 0, 0);

   // This router's Adjacency LSA
   conf.getAdjacencyList().insert(bupt);
   AdjLsa thisRouterAdjLsa(thisRouter.getName(), 1,
                           ndn::time::system_clock::now() + 3600_s,
                           2,
                           conf.getAdjacencyList());

   lsdb.installLsa(std::make_shared<AdjLsa>(thisRouterAdjLsa));

   // BUPT Adjacency LSA
   AdjacencyList buptAdjacencies;
   buptAdjacencies.insert(thisRouter);
   AdjLsa buptAdjLsa(buptRouterName, 1,
                     ndn::time::system_clock::now() + ndn::time::seconds(5),
                     0 , buptAdjacencies);

   lsdb.installLsa(std::make_shared<AdjLsa>(buptAdjLsa));

   // BUPT Name LSA
   ndn::Name buptAdvertisedName("/ndn/cn/edu/bupt");

   NamePrefixList buptNames{buptAdvertisedName};

   NameLsa buptNameLsa(buptRouterName, 1, ndn::time::system_clock::now() + ndn::time::seconds(5),
                       buptNames);

   lsdb.installLsa(std::make_shared<NameLsa>(buptNameLsa));

   // Advance clocks to expire LSAs
   this->advanceClocks(ndn::time::seconds(15));

   // LSA expirations should cause NPT entries to be completely removed
   NamePrefixTable::const_iterator it = npt.begin();
   BOOST_REQUIRE(it == npt.end());

   // Install new name LSA
   NameLsa buptNewNameLsa(buptRouterName, 12,
                          ndn::time::system_clock::now() + ndn::time::seconds(3600),
                          buptNames);

   lsdb.installLsa(std::make_shared<NameLsa>(buptNewNameLsa));

   this->advanceClocks(ndn::time::seconds(1));

   // Install new adjacency LSA
   AdjLsa buptNewAdjLsa(buptRouterName, 12,
                        ndn::time::system_clock::now() + ndn::time::seconds(3600),
                        0, buptAdjacencies);
   lsdb.installLsa(std::make_shared<AdjLsa>(buptNewAdjLsa));

   this->advanceClocks(ndn::time::seconds(1));

   // Each NPT entry should have a destination router
   it = npt.begin();
   BOOST_REQUIRE_EQUAL((*it)->getNamePrefix(), buptRouterName);
   BOOST_REQUIRE_EQUAL((*it)->getRteList().size(), 1);
   BOOST_CHECK_EQUAL((*(*it)->getRteList().begin())->getDestination(), buptRouterName);

   ++it;
   BOOST_REQUIRE_EQUAL((*it)->getNamePrefix(), buptAdvertisedName);
   BOOST_REQUIRE_EQUAL((*it)->getRteList().size(), 1);
   BOOST_CHECK_EQUAL((*(*it)->getRteList().begin())->getDestination(), buptRouterName);
 }

 BOOST_FIXTURE_TEST_CASE(AddEntryToPool, NamePrefixTableFixture)
 {
   RoutingTablePoolEntry rtpe1("router1");

   npt.addRtpeToPool(rtpe1);

   BOOST_CHECK_EQUAL(npt.m_rtpool.size(), 1);
   BOOST_CHECK_EQUAL(*(npt.m_rtpool.find("router1")->second), rtpe1);
 }

 BOOST_FIXTURE_TEST_CASE(RemoveEntryFromPool, NamePrefixTableFixture)
 {
   RoutingTablePoolEntry rtpe1("router1", 0);
   std::shared_ptr<RoutingTablePoolEntry> rtpePtr = npt.addRtpeToPool(rtpe1);

   npt.addRtpeToPool(rtpe1);

   npt.deleteRtpeFromPool(rtpePtr);

   BOOST_CHECK_EQUAL(npt.m_rtpool.size(), 0);
   BOOST_CHECK_EQUAL(npt.m_rtpool.count("router1"), 0);
 }

 BOOST_FIXTURE_TEST_CASE(AddRoutingEntryToNptEntry, NamePrefixTableFixture)
 {
   RoutingTablePoolEntry rtpe1("/ndn/memphis/rtr1", 0);
   std::shared_ptr<RoutingTablePoolEntry> rtpePtr = npt.addRtpeToPool(rtpe1);
   NamePrefixTableEntry npte1("/ndn/memphis/rtr2");

   npt.addEntry("/ndn/memphis/rtr2", "/ndn/memphis/rtr1");

   NamePrefixTable::NptEntryList::iterator nItr =
     std::find_if(npt.m_table.begin(),
                  npt.m_table.end(),
                  [&] (const std::shared_ptr<NamePrefixTableEntry>& entry) {
                    return entry->getNamePrefix() == npte1.getNamePrefix();
                  });

   std::list<std::shared_ptr<RoutingTablePoolEntry>> rtpeList = (*nItr)->getRteList();
   std::list<std::shared_ptr<RoutingTablePoolEntry>>::iterator rItr =
     std::find(rtpeList.begin(),
               rtpeList.end(),
               rtpePtr);
   BOOST_CHECK_EQUAL(**rItr, *rtpePtr);
 }

 BOOST_FIXTURE_TEST_CASE(RemoveRoutingEntryFromNptEntry, NamePrefixTableFixture)
 {
   RoutingTablePoolEntry rtpe1("/ndn/memphis/rtr1", 0);

   NamePrefixTableEntry npte1("/ndn/memphis/rtr2");
   npt.m_table.push_back(make_shared<NamePrefixTableEntry>(npte1));

   npt.addEntry("/ndn/memphis/rtr2", "/ndn/memphis/rtr1");
   npt.addEntry("/ndn/memphis/rtr2", "/ndn/memphis/altrtr");

   npt.removeEntry("/ndn/memphis/rtr2", "/ndn/memphis/rtr1");

   NamePrefixTable::NptEntryList::iterator nItr =
     std::find_if(npt.m_table.begin(),
                  npt.m_table.end(),
                  [&] (const std::shared_ptr<NamePrefixTableEntry>& entry) {
                    return entry->getNamePrefix() == npte1.getNamePrefix();
                  });

   std::list<std::shared_ptr<RoutingTablePoolEntry>> rtpeList = (*nItr)->getRteList();

   BOOST_CHECK_EQUAL(rtpeList.size(), 1);
   BOOST_CHECK_EQUAL(npt.m_rtpool.size(), 1);
 }

 BOOST_FIXTURE_TEST_CASE(AddNptEntryPtrToRoutingEntry, NamePrefixTableFixture)
 {
   NamePrefixTableEntry npte1("/ndn/memphis/rtr2");
   npt.m_table.push_back(make_shared<NamePrefixTableEntry>(npte1));

   npt.addEntry("/ndn/memphis/rtr2", "/ndn/memphis/rtr1");

   NamePrefixTable::NptEntryList::iterator nItr =
     std::find_if(npt.m_table.begin(),
                  npt.m_table.end(),
                  [&] (const std::shared_ptr<NamePrefixTableEntry>& entry) {
                    return entry->getNamePrefix() == npte1.getNamePrefix();
                  });

   std::list<std::shared_ptr<RoutingTablePoolEntry>> rtpeList = (*nItr)->getRteList();

   BOOST_CHECK_EQUAL(rtpeList.size(), 1);

   auto& namePrefixPtrs = rtpeList.front()->namePrefixTableEntries;

   auto nptIterator = namePrefixPtrs.find(npte1.getNamePrefix());
   BOOST_REQUIRE(nptIterator != namePrefixPtrs.end());
   auto nptSharedPtr = nptIterator->second.lock();
   BOOST_CHECK_EQUAL(*nptSharedPtr, npte1);
 }

 BOOST_FIXTURE_TEST_CASE(RemoveNptEntryPtrFromRoutingEntry, NamePrefixTableFixture)
 {
   NamePrefixTableEntry npte1("/ndn/memphis/rtr1");
   NamePrefixTableEntry npte2("/ndn/memphis/rtr2");
   RoutingTableEntry rte1("/ndn/memphis/destination1");
   npt.m_table.push_back(make_shared<NamePrefixTableEntry>(npte1));
   npt.m_table.push_back(make_shared<NamePrefixTableEntry>(npte2));

   npt.addEntry(npte1.getNamePrefix(), rte1.getDestination());
   // We have to add two entries, otherwise the routing pool entry will be deleted.
   npt.addEntry(npte2.getNamePrefix(), rte1.getDestination());
   npt.removeEntry(npte2.getNamePrefix(), rte1.getDestination());

   NamePrefixTable::NptEntryList::iterator nItr =
     std::find_if(npt.m_table.begin(),
                  npt.m_table.end(),
                  [&] (const std::shared_ptr<NamePrefixTableEntry>& entry) {
                    return entry->getNamePrefix() == npte1.getNamePrefix();
                  });

   std::list<std::shared_ptr<RoutingTablePoolEntry>> rtpeList = (*nItr)->getRteList();

   BOOST_CHECK_EQUAL(rtpeList.size(), 1);

   auto& namePrefixPtrs = rtpeList.front()->namePrefixTableEntries;

   // We should have removed the second one
   BOOST_CHECK_EQUAL(namePrefixPtrs.size(), 1);

   auto nptIterator = namePrefixPtrs.find(npte1.getNamePrefix());

   BOOST_REQUIRE(nptIterator != namePrefixPtrs.end());
   auto nptSharedPtr = nptIterator->second.lock();
   BOOST_CHECK_EQUAL(*nptSharedPtr, npte1);
 }

 BOOST_FIXTURE_TEST_CASE(RoutingTableUpdate, NamePrefixTableFixture)
 {
   RoutingTable& routingTable = nlsr.m_routingTable;
   const ndn::Name destination = ndn::Name{"/ndn/destination1"};
   NextHop hop1{"upd4://10.0.0.1", 0};
   NextHop hop2{"udp4://10.0.0.2", 1};
   NextHop hop3{"udp4://10.0.0.3", 2};
   const NamePrefixTableEntry entry1{"/ndn/router1"};
   npt.addEntry(entry1.getNamePrefix(), destination);

   routingTable.addNextHop(destination, hop1);
   routingTable.addNextHop(destination, hop2);

   npt.updateWithNewRoute(routingTable.m_rTable);

   // At this point the NamePrefixTableEntry should have two NextHops.
   auto nameIterator = std::find_if(npt.begin(), npt.end(),
                                    [&] (const std::shared_ptr<NamePrefixTableEntry>& entry) {
                                      return entry1.getNamePrefix() == entry->getNamePrefix();
                                    });
   BOOST_REQUIRE(nameIterator != npt.end());

   auto iterator = npt.m_rtpool.find(destination);
   BOOST_REQUIRE(iterator != npt.m_rtpool.end());
   auto nextHops = (iterator->second)->getNexthopList();
   BOOST_CHECK_EQUAL(nextHops.size(), 2);

   // Add the other NextHop
   routingTable.addNextHop(destination, hop3);
   npt.updateWithNewRoute(routingTable.m_rTable);

   // At this point the NamePrefixTableEntry should have three NextHops.
   nameIterator = std::find_if(npt.begin(), npt.end(),
                               [&] (const std::shared_ptr<NamePrefixTableEntry>& entry) {
                                 return entry1.getNamePrefix() == entry->getNamePrefix();
                               });
   BOOST_REQUIRE(nameIterator != npt.end());
   iterator = npt.m_rtpool.find(destination);
   BOOST_REQUIRE(iterator != npt.m_rtpool.end());
   nextHops = (iterator->second)->getNexthopList();
   BOOST_CHECK_EQUAL(nextHops.size(), 3);
 }

 BOOST_AUTO_TEST_SUITE_END()

 } // namespace test
 } // namespace nlsr
	/* -- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -- */
	/*
	* Copyright (c) 2014-2020, The University of Memphis,
	* Regents of the University of California,
	* Arizona Board of Regents.
	*
	* This file is part of NLSR (Named-data Link State Routing).
	* See AUTHORS.md for complete list of NLSR authors and contributors.
	*
	* NLSR 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.
	*
	* NLSR 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
	* NLSR, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>.
	*/

	#include "route/name-prefix-table.hpp"
	#include "nlsr.hpp"
	#include "../test-common.hpp"

	#include <ndn-cxx/util/dummy-client-face.hpp>

	namespace nlsr {
	namespace test {

	class NamePrefixTableFixture : public UnitTestTimeFixture
	{
	public:
	NamePrefixTableFixture()
	: face(m_ioService, m_keyChain)
	, conf(face, m_keyChain)
	, nlsr(face, m_keyChain, conf)
	, lsdb(nlsr.m_lsdb)
	, npt(nlsr.m_namePrefixTable)
	{
	}

	public:
	ndn::util::DummyClientFace face;
	ConfParameter conf;
	Nlsr nlsr;

	Lsdb& lsdb;
	NamePrefixTable& npt;
	};

	BOOST_AUTO_TEST_SUITE(TestNamePrefixTable)

	BOOST_FIXTURE_TEST_CASE(Bupt, NamePrefixTableFixture)
	{
	conf.setNetwork("/ndn");
	conf.setSiteName("/router");
	conf.setRouterName("/a");
	conf.buildRouterAndSyncUserPrefix();

	RoutingTable& routingTable = nlsr.m_routingTable;
	routingTable.setRoutingCalcInterval(0);

	Adjacent thisRouter(conf.getRouterPrefix(), ndn::FaceUri("udp4://10.0.0.1"), 0, Adjacent::STATUS_ACTIVE, 0, 0);

	ndn::Name buptRouterName("/ndn/cn/edu/bupt/%C1.Router/bupthub");
	Adjacent bupt(buptRouterName, ndn::FaceUri("udp4://10.0.0.2"), 0, Adjacent::STATUS_ACTIVE, 0, 0);

	// This router's Adjacency LSA
	conf.getAdjacencyList().insert(bupt);
	AdjLsa thisRouterAdjLsa(thisRouter.getName(), 1,
	ndn::time::system_clock::now() + 3600_s,
	2,
	conf.getAdjacencyList());

	lsdb.installLsa(std::make_shared<AdjLsa>(thisRouterAdjLsa));

	// BUPT Adjacency LSA
	AdjacencyList buptAdjacencies;
	buptAdjacencies.insert(thisRouter);
	AdjLsa buptAdjLsa(buptRouterName, 1,
	ndn::time::system_clock::now() + ndn::time::seconds(5),
	0 , buptAdjacencies);

	lsdb.installLsa(std::make_shared<AdjLsa>(buptAdjLsa));

	// BUPT Name LSA
	ndn::Name buptAdvertisedName("/ndn/cn/edu/bupt");

	NamePrefixList buptNames{buptAdvertisedName};

	NameLsa buptNameLsa(buptRouterName, 1, ndn::time::system_clock::now() + ndn::time::seconds(5),
	buptNames);

	lsdb.installLsa(std::make_shared<NameLsa>(buptNameLsa));

	// Advance clocks to expire LSAs
	this->advanceClocks(ndn::time::seconds(15));

	// LSA expirations should cause NPT entries to be completely removed
	NamePrefixTable::const_iterator it = npt.begin();
	BOOST_REQUIRE(it == npt.end());

	// Install new name LSA
	NameLsa buptNewNameLsa(buptRouterName, 12,
	ndn::time::system_clock::now() + ndn::time::seconds(3600),
	buptNames);

	lsdb.installLsa(std::make_shared<NameLsa>(buptNewNameLsa));

	this->advanceClocks(ndn::time::seconds(1));

	// Install new adjacency LSA
	AdjLsa buptNewAdjLsa(buptRouterName, 12,
	ndn::time::system_clock::now() + ndn::time::seconds(3600),
	0, buptAdjacencies);
	lsdb.installLsa(std::make_shared<AdjLsa>(buptNewAdjLsa));

	this->advanceClocks(ndn::time::seconds(1));

	// Each NPT entry should have a destination router
	it = npt.begin();
	BOOST_REQUIRE_EQUAL((*it)->getNamePrefix(), buptRouterName);
	BOOST_REQUIRE_EQUAL((*it)->getRteList().size(), 1);
	BOOST_CHECK_EQUAL(((it)->getRteList().begin())->getDestination(), buptRouterName);

	++it;
	BOOST_REQUIRE_EQUAL((*it)->getNamePrefix(), buptAdvertisedName);
	BOOST_REQUIRE_EQUAL((*it)->getRteList().size(), 1);
	BOOST_CHECK_EQUAL(((it)->getRteList().begin())->getDestination(), buptRouterName);
	}

	BOOST_FIXTURE_TEST_CASE(AddEntryToPool, NamePrefixTableFixture)
	{
	RoutingTablePoolEntry rtpe1("router1");

	npt.addRtpeToPool(rtpe1);

	BOOST_CHECK_EQUAL(npt.m_rtpool.size(), 1);
	BOOST_CHECK_EQUAL(*(npt.m_rtpool.find("router1")->second), rtpe1);
	}

	BOOST_FIXTURE_TEST_CASE(RemoveEntryFromPool, NamePrefixTableFixture)
	{
	RoutingTablePoolEntry rtpe1("router1", 0);
	std::shared_ptr<RoutingTablePoolEntry> rtpePtr = npt.addRtpeToPool(rtpe1);

	npt.addRtpeToPool(rtpe1);

	npt.deleteRtpeFromPool(rtpePtr);

	BOOST_CHECK_EQUAL(npt.m_rtpool.size(), 0);
	BOOST_CHECK_EQUAL(npt.m_rtpool.count("router1"), 0);
	}

	BOOST_FIXTURE_TEST_CASE(AddRoutingEntryToNptEntry, NamePrefixTableFixture)
	{
	RoutingTablePoolEntry rtpe1("/ndn/memphis/rtr1", 0);
	std::shared_ptr<RoutingTablePoolEntry> rtpePtr = npt.addRtpeToPool(rtpe1);
	NamePrefixTableEntry npte1("/ndn/memphis/rtr2");

	npt.addEntry("/ndn/memphis/rtr2", "/ndn/memphis/rtr1");

	NamePrefixTable::NptEntryList::iterator nItr =
	std::find_if(npt.m_table.begin(),
	npt.m_table.end(),
	[&] (const std::shared_ptr<NamePrefixTableEntry>& entry) {
	return entry->getNamePrefix() == npte1.getNamePrefix();
	});

	std::list<std::shared_ptr<RoutingTablePoolEntry>> rtpeList = (*nItr)->getRteList();
	std::list<std::shared_ptr<RoutingTablePoolEntry>>::iterator rItr =
	std::find(rtpeList.begin(),
	rtpeList.end(),
	rtpePtr);
	BOOST_CHECK_EQUAL(*rItr, rtpePtr);
	}

	BOOST_FIXTURE_TEST_CASE(RemoveRoutingEntryFromNptEntry, NamePrefixTableFixture)
	{
	RoutingTablePoolEntry rtpe1("/ndn/memphis/rtr1", 0);

	NamePrefixTableEntry npte1("/ndn/memphis/rtr2");
	npt.m_table.push_back(make_shared<NamePrefixTableEntry>(npte1));

	npt.addEntry("/ndn/memphis/rtr2", "/ndn/memphis/rtr1");
	npt.addEntry("/ndn/memphis/rtr2", "/ndn/memphis/altrtr");

	npt.removeEntry("/ndn/memphis/rtr2", "/ndn/memphis/rtr1");

	NamePrefixTable::NptEntryList::iterator nItr =
	std::find_if(npt.m_table.begin(),
	npt.m_table.end(),
	[&] (const std::shared_ptr<NamePrefixTableEntry>& entry) {
	return entry->getNamePrefix() == npte1.getNamePrefix();
	});

	std::list<std::shared_ptr<RoutingTablePoolEntry>> rtpeList = (*nItr)->getRteList();

	BOOST_CHECK_EQUAL(rtpeList.size(), 1);
	BOOST_CHECK_EQUAL(npt.m_rtpool.size(), 1);
	}

	BOOST_FIXTURE_TEST_CASE(AddNptEntryPtrToRoutingEntry, NamePrefixTableFixture)
	{
	NamePrefixTableEntry npte1("/ndn/memphis/rtr2");
	npt.m_table.push_back(make_shared<NamePrefixTableEntry>(npte1));

	npt.addEntry("/ndn/memphis/rtr2", "/ndn/memphis/rtr1");

	NamePrefixTable::NptEntryList::iterator nItr =
	std::find_if(npt.m_table.begin(),
	npt.m_table.end(),
	[&] (const std::shared_ptr<NamePrefixTableEntry>& entry) {
	return entry->getNamePrefix() == npte1.getNamePrefix();
	});

	std::list<std::shared_ptr<RoutingTablePoolEntry>> rtpeList = (*nItr)->getRteList();

	BOOST_CHECK_EQUAL(rtpeList.size(), 1);

	auto& namePrefixPtrs = rtpeList.front()->namePrefixTableEntries;

	auto nptIterator = namePrefixPtrs.find(npte1.getNamePrefix());
	BOOST_REQUIRE(nptIterator != namePrefixPtrs.end());
	auto nptSharedPtr = nptIterator->second.lock();
	BOOST_CHECK_EQUAL(*nptSharedPtr, npte1);
	}

	BOOST_FIXTURE_TEST_CASE(RemoveNptEntryPtrFromRoutingEntry, NamePrefixTableFixture)
	{
	NamePrefixTableEntry npte1("/ndn/memphis/rtr1");
	NamePrefixTableEntry npte2("/ndn/memphis/rtr2");
	RoutingTableEntry rte1("/ndn/memphis/destination1");
	npt.m_table.push_back(make_shared<NamePrefixTableEntry>(npte1));
	npt.m_table.push_back(make_shared<NamePrefixTableEntry>(npte2));

	npt.addEntry(npte1.getNamePrefix(), rte1.getDestination());
	// We have to add two entries, otherwise the routing pool entry will be deleted.
	npt.addEntry(npte2.getNamePrefix(), rte1.getDestination());
	npt.removeEntry(npte2.getNamePrefix(), rte1.getDestination());

	NamePrefixTable::NptEntryList::iterator nItr =
	std::find_if(npt.m_table.begin(),
	npt.m_table.end(),
	[&] (const std::shared_ptr<NamePrefixTableEntry>& entry) {
	return entry->getNamePrefix() == npte1.getNamePrefix();
	});

	std::list<std::shared_ptr<RoutingTablePoolEntry>> rtpeList = (*nItr)->getRteList();

	BOOST_CHECK_EQUAL(rtpeList.size(), 1);

	auto& namePrefixPtrs = rtpeList.front()->namePrefixTableEntries;

	// We should have removed the second one
	BOOST_CHECK_EQUAL(namePrefixPtrs.size(), 1);

	auto nptIterator = namePrefixPtrs.find(npte1.getNamePrefix());

	BOOST_REQUIRE(nptIterator != namePrefixPtrs.end());
	auto nptSharedPtr = nptIterator->second.lock();
	BOOST_CHECK_EQUAL(*nptSharedPtr, npte1);
	}

	BOOST_FIXTURE_TEST_CASE(RoutingTableUpdate, NamePrefixTableFixture)
	{
	RoutingTable& routingTable = nlsr.m_routingTable;
	const ndn::Name destination = ndn::Name{"/ndn/destination1"};
	NextHop hop1{"upd4://10.0.0.1", 0};
	NextHop hop2{"udp4://10.0.0.2", 1};
	NextHop hop3{"udp4://10.0.0.3", 2};
	const NamePrefixTableEntry entry1{"/ndn/router1"};
	npt.addEntry(entry1.getNamePrefix(), destination);

	routingTable.addNextHop(destination, hop1);
	routingTable.addNextHop(destination, hop2);

	npt.updateWithNewRoute(routingTable.m_rTable);

	// At this point the NamePrefixTableEntry should have two NextHops.
	auto nameIterator = std::find_if(npt.begin(), npt.end(),
	[&] (const std::shared_ptr<NamePrefixTableEntry>& entry) {
	return entry1.getNamePrefix() == entry->getNamePrefix();
	});
	BOOST_REQUIRE(nameIterator != npt.end());

	auto iterator = npt.m_rtpool.find(destination);
	BOOST_REQUIRE(iterator != npt.m_rtpool.end());
	auto nextHops = (iterator->second)->getNexthopList();
	BOOST_CHECK_EQUAL(nextHops.size(), 2);

	// Add the other NextHop
	routingTable.addNextHop(destination, hop3);
	npt.updateWithNewRoute(routingTable.m_rTable);

	// At this point the NamePrefixTableEntry should have three NextHops.
	nameIterator = std::find_if(npt.begin(), npt.end(),
	[&] (const std::shared_ptr<NamePrefixTableEntry>& entry) {
	return entry1.getNamePrefix() == entry->getNamePrefix();
	});
	BOOST_REQUIRE(nameIterator != npt.end());
	iterator = npt.m_rtpool.find(destination);
	BOOST_REQUIRE(iterator != npt.m_rtpool.end());
	nextHops = (iterator->second)->getNexthopList();
	BOOST_CHECK_EQUAL(nextHops.size(), 3);
	}

	BOOST_AUTO_TEST_SUITE_END()

	} // namespace test
	} // namespace nlsr