traced-value-callback-typedef-test-suite.cc

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/*
 * Copyright (c) 2015 Lawrence Livermore National Laboratory
 *
 * 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:  Peter D. Barnes, Jr. <pdbarnes@llnl.gov>
 */
 
#include "ns3/nstime.h"
#include "ns3/object.h"
#include "ns3/sequence-number.h"
#include "ns3/test.h"
#include "ns3/traced-value.h"
#include "ns3/type-id.h"
#include "ns3/type-name.h"
 
#include <type_traits>
 
using namespace ns3;
 
namespace
{
 
std::string g_Result = "";
 
template <typename T>
void
TracedValueCbSink(T oldValue, T newValue)
{
    std::cout << ": " << static_cast<int64_t>(oldValue) << " -> " << static_cast<int64_t>(newValue)
              << std::endl;
 
    if (oldValue != 0)
    {
        g_Result = "oldValue should be 0";
    }
 
    if (newValue != 1)
    {
        g_Result += std::string(g_Result.empty() ? "" : " | ") + "newValue should be 1";
    }
} // TracedValueCbSink<>()
 
template <>
void
TracedValueCbSink<Time>(Time oldValue, Time newValue)
{
    TracedValueCbSink<int64_t>(oldValue.GetInteger(), newValue.GetInteger());
}
 
template <>
void
TracedValueCbSink<SequenceNumber32>(SequenceNumber32 oldValue, SequenceNumber32 newValue)
{
    TracedValueCbSink<int64_t>(oldValue.GetValue(), newValue.GetValue());
}
 
} // unnamed namespace
 
class TracedValueCallbackTestCase : public TestCase
{
  public:
    TracedValueCallbackTestCase();
 
    ~TracedValueCallbackTestCase() override
    {
    }
 
  private:
    template <typename T>
    class CheckTvCb : public Object
    {
        TracedValue<T> m_value;
 
      public:
        CheckTvCb()
            : m_value(0)
        {
        }
 
        static TypeId GetTypeId()
        {
            static TypeId tid =
                TypeId("CheckTvCb<" + TypeNameGet<T>() + ">")
                    .SetParent<Object>()
                    .AddTraceSource("value",
                                    "A value being traced.",
                                    MakeTraceSourceAccessor(&CheckTvCb<T>::m_value),
                                    ("ns3::TracedValueCallback::" + TypeNameGet<T>()));
            return tid;
        } // GetTypeId ()
 
        template <typename U>
        void Invoke(U cb)
        {
            bool ok = TraceConnectWithoutContext("value", MakeCallback(cb));
            std::cout << GetTypeId() << ": " << (ok ? "connected " : "failed to connect ")
                      << GetTypeId().GetTraceSource(0).callback;
            // The endl is in the sink function.
 
            if (!ok)
            {
                // finish the line started above
                std::cout << std::endl;
 
                // and log the error
                g_Result = "failed to connect callback";
 
                return;
            }
 
            // Odd form here is to accommodate the uneven operator support
            // of Time and SequenceNumber32.
            m_value = m_value + static_cast<T>(1);
 
        } // Invoke()
 
    }; // class CheckTvCb<T>
 
    template <typename T, typename U>
    void CheckType()
    {
        U sink = TracedValueCbSink<T>;
        CreateObject<CheckTvCb<T>>()->Invoke(sink);
 
        NS_TEST_ASSERT_MSG_EQ(g_Result.empty(), true, g_Result);
        g_Result = "";
 
    } // CheckType<>()
 
    void DoRun() override;
};
 
TracedValueCallbackTestCase::TracedValueCallbackTestCase()
    : TestCase("Check basic TracedValue callback operation")
{
}
 
void
TracedValueCallbackTestCase::DoRun()
{
    CheckType<bool, TracedValueCallback::Bool>();
    CheckType<int8_t, TracedValueCallback::Int8>();
    CheckType<int16_t, TracedValueCallback::Int16>();
    CheckType<int32_t, TracedValueCallback::Int32>();
    CheckType<int64_t, TracedValueCallback::Int64>();
    CheckType<uint8_t, TracedValueCallback::Uint8>();
    CheckType<uint16_t, TracedValueCallback::Uint16>();
    CheckType<uint32_t, TracedValueCallback::Uint32>();
    CheckType<uint64_t, TracedValueCallback::Uint64>();
    CheckType<double, TracedValueCallback::Double>();
    CheckType<Time, TracedValueCallback::Time>();
    CheckType<SequenceNumber32, TracedValueCallback::SequenceNumber32>();
}
 
class TracedValueCallbackTestSuite : public TestSuite
{
  public:
    TracedValueCallbackTestSuite();
};
 
TracedValueCallbackTestSuite::TracedValueCallbackTestSuite()
    : TestSuite("traced-value-callback", UNIT)
{
    AddTestCase(new TracedValueCallbackTestCase, TestCase::QUICK);
}
 
static TracedValueCallbackTestSuite tracedValueCallbackTestSuite;