tcp-datasentcb-test.cc

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2015 Natale Patriciello <natale.patriciello@gmail.com>
 *
 * 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 "tcp-general-test.h"
#include "ns3/node.h"
#include "ns3/log.h"
#include "ns3/tcp-header.h"

using namespace ns3;

NS_LOG_COMPONENT_DEFINE ("TcpDatSentCbTest");

class TcpSocketHalfAck : public TcpSocketMsgBase
{
public:
  static TypeId GetTypeId (void);

  TcpSocketHalfAck () : TcpSocketMsgBase ()
  {
  }

protected:
  virtual Ptr<TcpSocketBase> Fork ();
  virtual void ReceivedData (Ptr<Packet> packet, const TcpHeader& tcpHeader);
};

NS_OBJECT_ENSURE_REGISTERED (TcpSocketHalfAck);

TypeId
TcpSocketHalfAck::GetTypeId (void)
{
  static TypeId tid = TypeId ("ns3::TcpSocketHalfAck")
    .SetParent<TcpSocketMsgBase> ()
    .SetGroupName ("Internet")
    .AddConstructor<TcpSocketHalfAck> ()
  ;
  return tid;
}

Ptr<TcpSocketBase>
TcpSocketHalfAck::Fork (void)
{
  return CopyObject<TcpSocketHalfAck> (this);
}

void
TcpSocketHalfAck::ReceivedData (Ptr<Packet> packet, const TcpHeader &tcpHeader)
{
  NS_LOG_FUNCTION (this << packet << tcpHeader);
  static uint32_t times = 1;

  Ptr<Packet> halved = packet->Copy ();

  if (times % 2 == 0)
    halved->RemoveAtEnd (packet->GetSize () / 2);

  times++;

  TcpSocketMsgBase::ReceivedData (halved, tcpHeader);
}


class TcpDataSentCbTestCase : public TcpGeneralTest
{
public:

  TcpDataSentCbTestCase (const std::string &desc, uint32_t size, uint32_t packets) :
    TcpGeneralTest (desc),
    m_pktSize (size),
    m_pktCount (packets),
    m_notifiedData (0)
  { }

protected:
  virtual Ptr<TcpSocketMsgBase> CreateReceiverSocket (Ptr<Node> node);

  virtual void DataSent (uint32_t size, SocketWho who);
  virtual void ConfigureEnvironment ();
  virtual void FinalChecks ();

private:
  uint32_t m_pktSize;      
  uint32_t m_pktCount;     
  uint32_t m_notifiedData; 
};

void
TcpDataSentCbTestCase::ConfigureEnvironment ()
{
  TcpGeneralTest::ConfigureEnvironment ();
  SetAppPktCount (m_pktCount);
  SetAppPktSize (m_pktSize);
}

void
TcpDataSentCbTestCase::DataSent (uint32_t size, SocketWho who)
{
  NS_LOG_FUNCTION (this << who << size);

  m_notifiedData += size;
}

void
TcpDataSentCbTestCase::FinalChecks ()
{
  NS_TEST_ASSERT_MSG_EQ (m_notifiedData, GetPktSize () * GetPktCount (),
                         "Notified more data than application sent");
}

Ptr<TcpSocketMsgBase>
TcpDataSentCbTestCase::CreateReceiverSocket (Ptr<Node> node)
{
  NS_LOG_FUNCTION (this);

  return CreateSocket (node, TcpSocketHalfAck::GetTypeId (), m_congControlTypeId);
}

class TcpDataSentCbTestSuite : public TestSuite
{
public:
  TcpDataSentCbTestSuite ()
    : TestSuite ("tcp-datasentcb", UNIT)
  {
    AddTestCase (new TcpDataSentCbTestCase ("Check the data sent callback", 500, 10), TestCase::QUICK);
    AddTestCase (new TcpDataSentCbTestCase ("Check the data sent callback", 100, 100), TestCase::QUICK);
    AddTestCase (new TcpDataSentCbTestCase ("Check the data sent callback", 1000, 50), TestCase::QUICK);
    AddTestCase (new TcpDataSentCbTestCase ("Check the data sent callback", 855, 18), TestCase::QUICK);
    AddTestCase (new TcpDataSentCbTestCase ("Check the data sent callback", 1243, 59), TestCase::QUICK);
  }

};

static TcpDataSentCbTestSuite g_tcpDataSentCbTestSuite;