src: decouple classes from Nlsr object

refs: #1952, #2803, #3960, #4288

Change-Id: Ibe3ac3820f11e8107ee4b13e510d53c27467a6cb
diff --git a/tests/route/test-name-prefix-table.cpp b/tests/route/test-name-prefix-table.cpp
new file mode 100644
index 0000000..947f8e1
--- /dev/null
+++ b/tests/route/test-name-prefix-table.cpp
@@ -0,0 +1,312 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2014-2019,  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)
+    , 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.buildRouterPrefix();
+
+  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() + ndn::time::seconds::max(),
+                          2,
+                          conf.getAdjacencyList());
+
+  lsdb.installAdjLsa(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.installAdjLsa(buptAdjLsa);
+
+  // BUPT Name LSA
+  ndn::Name buptAdvertisedName("/ndn/cn/edu/bupt");
+
+  NamePrefixList buptNames{buptAdvertisedName};
+
+  NameLsa buptNameLsa(buptRouterName, 1, ndn::time::system_clock::now(),
+                      buptNames);
+
+  lsdb.installNameLsa(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.installNameLsa(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.installAdjLsa(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