point-to-point-test.cc

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2009 INRIA
 *
 * 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
 *
 * Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
 */
 
#include "ns3/test.h"
#include "ns3/drop-tail-queue.h"
#include "ns3/simulator.h"
#include "ns3/point-to-point-net-device.h"
#include "ns3/point-to-point-channel.h"
#include "ns3/net-device-queue-interface.h"
 
#include <string>
 
using namespace ns3;
 
class PointToPointTest : public TestCase
{
public:
  PointToPointTest ();
 
  virtual void DoRun (void);
 
private:
  
  Ptr<const Packet> m_recvdPacket; 
  void SendOnePacket (Ptr<PointToPointNetDevice> device, uint8_t const *buffer, uint32_t size);
  bool RxPacket (Ptr<NetDevice> dev, Ptr<const Packet> pkt, uint16_t mode, const Address &sender);
};
 
PointToPointTest::PointToPointTest ()
  : TestCase ("PointToPoint")
{
}
 
void
PointToPointTest::SendOnePacket (Ptr<PointToPointNetDevice> device, uint8_t const *buffer, uint32_t size)
{
  Ptr<Packet> p = Create<Packet> (buffer, size);
  device->Send (p, device->GetBroadcast (), 0x800);
}
 
bool
PointToPointTest::RxPacket (Ptr<NetDevice> dev, Ptr<const Packet> pkt, uint16_t mode, const Address &sender)
{
  m_recvdPacket = pkt;
  return true;
}
 
 
void
PointToPointTest::DoRun (void)
{
  Ptr<Node> a = CreateObject<Node> ();
  Ptr<Node> b = CreateObject<Node> ();
  Ptr<PointToPointNetDevice> devA = CreateObject<PointToPointNetDevice> ();
  Ptr<PointToPointNetDevice> devB = CreateObject<PointToPointNetDevice> ();
  Ptr<PointToPointChannel> channel = CreateObject<PointToPointChannel> ();
 
  devA->Attach (channel);
  devA->SetAddress (Mac48Address::Allocate ());
  devA->SetQueue (CreateObject<DropTailQueue<Packet> > ());
  devB->Attach (channel);
  devB->SetAddress (Mac48Address::Allocate ());
  devB->SetQueue (CreateObject<DropTailQueue<Packet> > ());
 
  a->AddDevice (devA);
  b->AddDevice (devB);
  
  devB->SetReceiveCallback (MakeCallback (&PointToPointTest::RxPacket,
                                          this));
  uint8_t txBuffer [] = "\"Can you tell me where my country lies?\" \\ said the unifaun to his true love's eyes. \\ \"It lies with me!\" cried the Queen of Maybe \\ - for her merchandise, he traded in his prize.";
  size_t txBufferSize = sizeof(txBuffer);
  
  Simulator::Schedule (Seconds (1.0), &PointToPointTest::SendOnePacket, this, devA, txBuffer, txBufferSize);
 
  Simulator::Run ();
 
  NS_TEST_EXPECT_MSG_EQ (m_recvdPacket->GetSize (), txBufferSize, "trivial");
 
  uint8_t rxBuffer [1500]; // As large as the P2P MTU size, assuming that the user didn't change it.
  
  m_recvdPacket->CopyData (rxBuffer, txBufferSize);
  NS_TEST_EXPECT_MSG_EQ (memcmp (rxBuffer, txBuffer, txBufferSize), 0, "trivial");
  
  Simulator::Destroy ();
}
 
class PointToPointTestSuite : public TestSuite
{
public:
  PointToPointTestSuite ();
};
 
PointToPointTestSuite::PointToPointTestSuite ()
  : TestSuite ("devices-point-to-point", UNIT)
{
  AddTestCase (new PointToPointTest, TestCase::QUICK);
}
 
static PointToPointTestSuite g_pointToPointTestSuite;