/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */

/*

 * Copyright (c) 2009 University of Washington

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation;

 *

 * This program 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 this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

 *

 */

#include "ns3/test.h"

#include "ns3/ipv6-list-routing.h"

#include "ns3/ipv6-route.h"

#include "ns3/ipv6-routing-protocol.h"

class Ipv6ARouting : public Ipv6RoutingProtocol {

public:

  Ptr<Ipv6Route> RouteOutput (Ptr<Packet> p, const Ipv6Header &header, Ptr<NetDevice> oif, Socket::SocketErrno &sockerr)  { return 0; }

  bool RouteInput  (Ptr<const Packet> p, const Ipv6Header &header, Ptr<const NetDevice> idev,

                    UnicastForwardCallback ucb, MulticastForwardCallback mcb,

                    LocalDeliverCallback lcb, ErrorCallback ecb) { return false; }

  void NotifyInterfaceUp (uint32_t interface) {}

  void NotifyInterfaceDown (uint32_t interface) {}

  void NotifyAddAddress (uint32_t interface, Ipv6InterfaceAddress address) {}

  void NotifyRemoveAddress (uint32_t interface, Ipv6InterfaceAddress address) {}

  void NotifyAddRoute (Ipv6Address dst, Ipv6Prefix mask, Ipv6Address nextHop, uint32_t interface, Ipv6Address prefixToUse = Ipv6Address::

                         GetZero ()) {}

  void NotifyRemoveRoute (Ipv6Address dst, Ipv6Prefix mask, Ipv6Address nextHop, uint32_t interface, Ipv6Address prefixToUse) {}

  void SetIpv6 (Ptr<Ipv6> ipv6) {}

  virtual void PrintRoutingTable (Ptr<OutputStreamWrapper> stream) const {};

};

class Ipv6BRouting : public Ipv6RoutingProtocol {

public:

  Ptr<Ipv6Route> RouteOutput (Ptr<Packet> p, const Ipv6Header &header, Ptr<NetDevice> oif, Socket::SocketErrno &sockerr)  { return 0; }

  bool RouteInput  (Ptr<const Packet> p, const Ipv6Header &header, Ptr<const NetDevice> idev,

                    UnicastForwardCallback ucb, MulticastForwardCallback mcb,

                    LocalDeliverCallback lcb, ErrorCallback ecb) { return false; }

  void NotifyInterfaceUp (uint32_t interface) {}

  void NotifyInterfaceDown (uint32_t interface) {}

  void NotifyAddAddress (uint32_t interface, Ipv6InterfaceAddress address) {}

  void NotifyRemoveAddress (uint32_t interface, Ipv6InterfaceAddress address) {}

  void NotifyAddRoute (Ipv6Address dst, Ipv6Prefix mask, Ipv6Address nextHop, uint32_t interface, Ipv6Address prefixToUse = Ipv6Address::

                         GetZero ()) {}

  void NotifyRemoveRoute (Ipv6Address dst, Ipv6Prefix mask, Ipv6Address nextHop, uint32_t interface, Ipv6Address prefixToUse) {}

  void SetIpv6 (Ptr<Ipv6> ipv6) {}

  virtual void PrintRoutingTable (Ptr<OutputStreamWrapper> stream) const {};

};

class Ipv6ListRoutingNegativeTestCase : public TestCase

{

public:

  Ipv6ListRoutingNegativeTestCase();

  virtual void DoRun (void);

};

Ipv6ListRoutingNegativeTestCase::Ipv6ListRoutingNegativeTestCase()

  : TestCase ("Check negative priorities")

{

}

void

Ipv6ListRoutingNegativeTestCase::DoRun (void)

{

  Ptr<Ipv6ListRouting> lr = CreateObject<Ipv6ListRouting> ();

  Ptr<Ipv6RoutingProtocol> aRouting = CreateObject<Ipv6ARouting> ();

  Ptr<Ipv6RoutingProtocol> bRouting = CreateObject<Ipv6BRouting> ();

  // The Ipv6BRouting should be added with higher priority (larger integer value)

  lr->AddRoutingProtocol (aRouting, -10);

  lr->AddRoutingProtocol (bRouting, -5);

  int16_t first = 3;

  uint32_t num = lr->GetNRoutingProtocols ();

  NS_TEST_ASSERT_MSG_EQ (num, 2, "XXX");

  Ptr<Ipv6RoutingProtocol> firstRp = lr->GetRoutingProtocol (0, first);

  NS_TEST_ASSERT_MSG_EQ (-5, first, "XXX");

  NS_TEST_ASSERT_MSG_EQ (firstRp, bRouting, "XXX");

}

class Ipv6ListRoutingPositiveTestCase : public TestCase

{

public:

  Ipv6ListRoutingPositiveTestCase();

  virtual void DoRun (void);

};

Ipv6ListRoutingPositiveTestCase::Ipv6ListRoutingPositiveTestCase()

  : TestCase ("Check positive priorities")

{

}

void

Ipv6ListRoutingPositiveTestCase::DoRun (void)

{

  Ptr<Ipv6ListRouting> lr = CreateObject<Ipv6ListRouting> ();

  Ptr<Ipv6RoutingProtocol> aRouting = CreateObject<Ipv6ARouting> ();

  Ptr<Ipv6RoutingProtocol> bRouting = CreateObject<Ipv6BRouting> ();

  // The Ipv6ARouting should be added with higher priority (larger integer

  // value) and will be fetched first below

  lr->AddRoutingProtocol (aRouting, 10);

  lr->AddRoutingProtocol (bRouting, 5);

  int16_t first = 3;

  int16_t second = 3;

  uint32_t num = lr->GetNRoutingProtocols ();

  NS_TEST_ASSERT_MSG_EQ (num, 2, "XXX");

  Ptr<Ipv6RoutingProtocol> firstRp = lr->GetRoutingProtocol (0, first);

  NS_TEST_ASSERT_MSG_EQ (10, first, "XXX");

  NS_TEST_ASSERT_MSG_EQ (firstRp, aRouting, "XXX");

  Ptr<Ipv6RoutingProtocol> secondRp = lr->GetRoutingProtocol (1, second);

  NS_TEST_ASSERT_MSG_EQ (5, second, "XXX");

  NS_TEST_ASSERT_MSG_EQ (secondRp, bRouting, "XXX");

}

static class Ipv6ListRoutingTestSuite : public TestSuite

{

public:

  Ipv6ListRoutingTestSuite()

    : TestSuite ("ipv6-list-routing", UNIT)

  {

    AddTestCase (new Ipv6ListRoutingPositiveTestCase ());

    AddTestCase (new Ipv6ListRoutingNegativeTestCase ());

  }

} g_ipv6ListRoutingTestSuite;