spectrum-waveform-generator-test.cc

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/*
 * Copyright (c) 2011 CTTC
 *
 * 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: Luis Pacheco <luisbelem@gmail.com>
 */
#include <ns3/core-module.h>
#include <ns3/spectrum-module.h>
#include <ns3/test.h>
 
NS_LOG_COMPONENT_DEFINE("WaveformGeneratorTest");
 
using namespace ns3;
 
/**
 * \ingroup spectrum-tests
 *
 * \brief Waveform generator Test
 */
class WaveformGeneratorTestCase : public TestCase
{
  public:
    /**
     * Constructor
     *
     * \param period waveform period (seconds)
     * \param dutyCycle waveform duty cycle
     * \param stop stop time (seconds)
     */
    WaveformGeneratorTestCase(double period, double dutyCycle, double stop);
    ~WaveformGeneratorTestCase() override;
 
  private:
    void DoRun() override;
 
    /**
     * Trace if the waveform is active
     * \param newPkt unused.
     */
    void TraceWave(Ptr<const Packet> newPkt);
    double m_period;    //!< waveform period (seconds)
    double m_dutyCycle; //!< waveform duty cycle
    double m_stop;      //!< stop time (seconds)
    int m_fails;        //!< failure check
};
 
void
WaveformGeneratorTestCase::TraceWave(Ptr<const Packet> newPkt)
{
    if (Now().GetSeconds() > m_stop)
    {
        m_fails++;
    }
}
 
WaveformGeneratorTestCase::WaveformGeneratorTestCase(double period, double dutyCycle, double stop)
    : TestCase("Check stop method"),
      m_period(period),
      m_dutyCycle(dutyCycle),
      m_stop(stop),
      m_fails(0)
{
}
 
WaveformGeneratorTestCase::~WaveformGeneratorTestCase()
{
}
 
void
WaveformGeneratorTestCase::DoRun()
{
    Ptr<SpectrumValue> txPsd = MicrowaveOvenSpectrumValueHelper::CreatePowerSpectralDensityMwo1();
 
    SpectrumChannelHelper channelHelper = SpectrumChannelHelper::Default();
    channelHelper.SetChannel("ns3::SingleModelSpectrumChannel");
    Ptr<SpectrumChannel> channel = channelHelper.Create();
 
    Ptr<Node> n = CreateObject<Node>();
 
    WaveformGeneratorHelper waveformGeneratorHelper;
    waveformGeneratorHelper.SetTxPowerSpectralDensity(txPsd);
    waveformGeneratorHelper.SetChannel(channel);
    waveformGeneratorHelper.SetPhyAttribute("Period", TimeValue(Seconds(m_period)));
    waveformGeneratorHelper.SetPhyAttribute("DutyCycle", DoubleValue(m_dutyCycle));
    NetDeviceContainer waveformGeneratorDevices = waveformGeneratorHelper.Install(n);
 
    Ptr<WaveformGenerator> wave = waveformGeneratorDevices.Get(0)
                                      ->GetObject<NonCommunicatingNetDevice>()
                                      ->GetPhy()
                                      ->GetObject<WaveformGenerator>();
 
    wave->TraceConnectWithoutContext("TxStart",
                                     MakeCallback(&WaveformGeneratorTestCase::TraceWave, this));
 
    Simulator::Schedule(Seconds(1.0), &WaveformGenerator::Start, wave);
    Simulator::Schedule(Seconds(m_stop), &WaveformGenerator::Stop, wave);
 
    Simulator::Stop(Seconds(3.0));
    Simulator::Run();
 
    NS_TEST_ASSERT_MSG_EQ(m_fails, 0, "Wave started after the stop method was called");
 
    Simulator::Destroy();
}
 
/**
 * \ingroup spectrum-tests
 *
 * \brief Waveform generator TestSuite
 */
class WaveformGeneratorTestSuite : public TestSuite
{
  public:
    WaveformGeneratorTestSuite();
};
 
WaveformGeneratorTestSuite::WaveformGeneratorTestSuite()
    : TestSuite("waveform-generator", Type::SYSTEM)
{
    NS_LOG_INFO("creating WaveformGeneratorTestSuite");
 
    // Stop while wave is active
    AddTestCase(new WaveformGeneratorTestCase(1.0, 0.5, 1.2), TestCase::Duration::QUICK);
    // Stop after wave
    AddTestCase(new WaveformGeneratorTestCase(1.0, 0.5, 1.7), TestCase::Duration::QUICK);
}
 
/// Static variable for test initialization
static WaveformGeneratorTestSuite g_waveformGeneratorTestSuite;