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PriorityEventTest.cpp

//
// PriorityEventTest.cpp
//
// $Id: //poco/1.2/Foundation/testsuite/src/PriorityEventTest.cpp#2 $
//
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// Permission is hereby granted, free of charge, to any person or organization
// obtaining a copy of the software and accompanying documentation covered by
// this license (the "Software") to use, reproduce, display, distribute,
// execute, and transmit the Software, and to prepare derivative works of the
// Software, and to permit third-parties to whom the Software is furnished to
// do so, all subject to the following:
// 
// The copyright notices in the Software and this entire statement, including
// the above license grant, this restriction and the following disclaimer,
// must be included in all copies of the Software, in whole or in part, and
// all derivative works of the Software, unless such copies or derivative
// works are solely in the form of machine-executable object code generated by
// a source language processor.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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// DEALINGS IN THE SOFTWARE.
//


#include "PriorityEventTest.h"
#include "DummyDelegate.h"
#include "CppUnit/TestCaller.h"
#include "CppUnit/TestSuite.h"
#include "Poco/PriorityDelegate.h"
#include "Poco/PriorityExpire.h"
#include "Poco/Thread.h"
#include "Poco/Exception.h"


using namespace Poco;


#define LARGEINC 100


PriorityEventTest::PriorityEventTest(const std::string& name): CppUnit::TestCase(name)
{
}


PriorityEventTest::~PriorityEventTest()
{
}

void PriorityEventTest::testNoDelegate()
{
      int tmp = 0;
      EventArgs args;

      assert (_count == 0);
      Simple.notify(this, tmp);
      assert (_count == 0);

      Simple += PriorityDelegate<PriorityEventTest, int>(this, &PriorityEventTest::onSimple, 0);
      Simple -= PriorityDelegate<PriorityEventTest, int>(this, &PriorityEventTest::onSimple, 0);
      Simple.notify(this, tmp);
      assert (_count == 0);
      
      ConstSimple += PriorityDelegate<PriorityEventTest, const int>(this, &PriorityEventTest::onConstSimple, 0);
      ConstSimple -= PriorityDelegate<PriorityEventTest, const int>(this, &PriorityEventTest::onConstSimple, 0);
      ConstSimple.notify(this, tmp);
      assert (_count == 0);
      
      //Note: passing &args will not work due to &
      EventArgs* pArgs = &args;
      Complex += PriorityDelegate<PriorityEventTest, Poco::EventArgs*>(this, &PriorityEventTest::onComplex, 0);
      Complex -= PriorityDelegate<PriorityEventTest, Poco::EventArgs*>(this, &PriorityEventTest::onComplex, 0);
      Complex.notify(this, pArgs);
      assert (_count == 0);

      Complex2 += PriorityDelegate<PriorityEventTest, Poco::EventArgs>(this, &PriorityEventTest::onComplex2, 0);
      Complex2 -= PriorityDelegate<PriorityEventTest, Poco::EventArgs>(this, &PriorityEventTest::onComplex2, 0);
      Complex2.notify(this, args);
      assert (_count == 0);

      const EventArgs* pCArgs = &args;
      ConstComplex += PriorityDelegate<PriorityEventTest, const Poco::EventArgs*>(this, &PriorityEventTest::onConstComplex, 0);
      ConstComplex -= PriorityDelegate<PriorityEventTest, const Poco::EventArgs*>(this, &PriorityEventTest::onConstComplex, 0);
      ConstComplex.notify(this, pCArgs);
      assert (_count == 0);

      Const2Complex += PriorityDelegate<PriorityEventTest, const Poco::EventArgs* const>(this, &PriorityEventTest::onConst2Complex, 0);
      Const2Complex -= PriorityDelegate<PriorityEventTest, const Poco::EventArgs* const>(this, &PriorityEventTest::onConst2Complex, 0);
      Const2Complex.notify(this, pArgs);
      assert (_count == 0);
}

void PriorityEventTest::testSingleDelegate()
{
      int tmp = 0;
      EventArgs args;

      assert (_count == 0);

      Simple += PriorityDelegate<PriorityEventTest, int>(this, &PriorityEventTest::onSimple, 0);
      // unregistering with a different priority --> different observer, is ignored
      Simple -= PriorityDelegate<PriorityEventTest, int>(this, &PriorityEventTest::onSimple, 3);
      Simple.notify(this, tmp);
      assert (_count == 1);
      
      ConstSimple += PriorityDelegate<PriorityEventTest, const int>(this, &PriorityEventTest::onConstSimple, 0);
      ConstSimple -= PriorityDelegate<PriorityEventTest, const int>(this, &PriorityEventTest::onConstSimple, 3);
      ConstSimple.notify(this, tmp);
      assert (_count == 2);
      
      EventArgs* pArgs = &args;
      Complex += PriorityDelegate<PriorityEventTest, Poco::EventArgs*>(this, &PriorityEventTest::onComplex, 0);
      Complex -= PriorityDelegate<PriorityEventTest, Poco::EventArgs*>(this, &PriorityEventTest::onComplex, 3);
      Complex.notify(this, pArgs);
      assert (_count == 3);

      Complex2 += PriorityDelegate<PriorityEventTest, Poco::EventArgs>(this, &PriorityEventTest::onComplex2, 0);
      Complex2 -= PriorityDelegate<PriorityEventTest, Poco::EventArgs>(this, &PriorityEventTest::onComplex2, 3);
      Complex2.notify(this, args);
      assert (_count == 4);

      const EventArgs* pCArgs = &args;
      ConstComplex += PriorityDelegate<PriorityEventTest, const Poco::EventArgs*>(this, &PriorityEventTest::onConstComplex, 0);
      ConstComplex -= PriorityDelegate<PriorityEventTest, const Poco::EventArgs*>(this, &PriorityEventTest::onConstComplex, 3);
      ConstComplex.notify(this, pCArgs);
      assert (_count == 5);

      Const2Complex += PriorityDelegate<PriorityEventTest, const Poco::EventArgs* const>(this, &PriorityEventTest::onConst2Complex, 0);
      Const2Complex -= PriorityDelegate<PriorityEventTest, const Poco::EventArgs* const>(this, &PriorityEventTest::onConst2Complex, 3);
      Const2Complex.notify(this, pArgs);
      assert (_count == 6);
      // check if 2nd notify also works
      Const2Complex.notify(this, pArgs);
      assert (_count == 7);
      
}

void PriorityEventTest::testDuplicateRegister()
{
      int tmp = 0;
      
      assert (_count == 0);

      Simple += PriorityDelegate<PriorityEventTest, int>(this, &PriorityEventTest::onSimple, 0);
      Simple += PriorityDelegate<PriorityEventTest, int>(this, &PriorityEventTest::onSimple, 0);
      Simple.notify(this, tmp);
      assert (_count == 1);
      Simple -= PriorityDelegate<PriorityEventTest, int>(this, &PriorityEventTest::onSimple, 0);
      Simple.notify(this, tmp);
      assert (_count == 1);

      Simple += PriorityDelegate<PriorityEventTest, int>(this, &PriorityEventTest::onSimple, 0);
      Simple += PriorityDelegate<PriorityEventTest, int>(this, &PriorityEventTest::onSimpleOther, 1);
      Simple.notify(this, tmp);
      assert (_count == 2 + LARGEINC);
      Simple -= PriorityDelegate<PriorityEventTest, int>(this, &PriorityEventTest::onSimpleOther, 1);
      Simple.notify(this, tmp);
      assert (_count == 3 + LARGEINC);
}

void PriorityEventTest::testDuplicateUnregister()
{
      // duplicate unregister shouldn't give an error,
      int tmp = 0;
      
      assert (_count == 0);

      Simple -= PriorityDelegate<PriorityEventTest, int>(this, &PriorityEventTest::onSimple, 0); // should work
      Simple.notify(this, tmp);
      assert (_count == 0);

      Simple += PriorityDelegate<PriorityEventTest, int>(this, &PriorityEventTest::onSimple, 0);
      Simple.notify(this, tmp);
      assert (_count == 1);

      Simple -= PriorityDelegate<PriorityEventTest, int>(this, &PriorityEventTest::onSimple, 0);
      Simple.notify(this, tmp);
      assert (_count == 1);

      Simple -= PriorityDelegate<PriorityEventTest, int>(this, &PriorityEventTest::onSimple, 0);
      Simple.notify(this, tmp);
      assert (_count == 1);
}


void PriorityEventTest::testDisabling()
{
      int tmp = 0;
      
      assert (_count == 0);

      Simple += PriorityDelegate<PriorityEventTest, int>(this, &PriorityEventTest::onSimple, 0);
      Simple.disable();
      Simple.notify(this, tmp);
      assert (_count == 0);
      Simple.enable();
      Simple.notify(this, tmp);
      assert (_count == 1);

      // unregister should also work with disabled event
      Simple.disable();
      Simple -= PriorityDelegate<PriorityEventTest, int>(this, &PriorityEventTest::onSimple, 0);
      Simple.enable();
      Simple.notify(this, tmp);
      assert (_count == 1);
}

void PriorityEventTest::testPriorityOrder()
{
      DummyDelegate o1;
      DummyDelegate o2;

      assert (_count == 0);

      Simple += PriorityDelegate<DummyDelegate, int>(&o2, &DummyDelegate::onSimple2, 1);
      Simple += PriorityDelegate<DummyDelegate, int>(&o1, &DummyDelegate::onSimple, 0);

      int tmp = 0;
      Simple.notify(this, tmp);
      assert (tmp == 2);

      Simple -= PriorityDelegate<DummyDelegate, int>(&o1, &DummyDelegate::onSimple, 0);
      Simple -= PriorityDelegate<DummyDelegate, int>(&o2, &DummyDelegate::onSimple2, 1);
      
      // now try with the wrong order
      Simple += PriorityDelegate<DummyDelegate, int>(&o2, &DummyDelegate::onSimple2, 0);
      Simple += PriorityDelegate<DummyDelegate, int>(&o1, &DummyDelegate::onSimple, 1);

      try
      {
            tmp = 0;
            Simple.notify(this, tmp);
            failmsg ("Notify should not work");
      }
      catch (Poco::InvalidArgumentException&)
      {
      }

      Simple -= PriorityDelegate<DummyDelegate, int>(&o2, &DummyDelegate::onSimple2, 0);
      Simple -= PriorityDelegate<DummyDelegate, int>(&o1, &DummyDelegate::onSimple, 1);
}

void PriorityEventTest::testPriorityOrderExpire()
{
      // expire must not break order!
      DummyDelegate o1;
      DummyDelegate o2;

      assert (_count == 0);

      Simple += PriorityExpire<int>(PriorityDelegate<DummyDelegate, int>(&o2, &DummyDelegate::onSimple2, 1), 500000);
      Simple += PriorityExpire<int>(PriorityDelegate<DummyDelegate, int>(&o1, &DummyDelegate::onSimple, 0), 500000);
      int tmp = 0;
      Simple.notify(this, tmp);
      assert (tmp == 2);

      // both ways of unregistering should work
      Simple -= PriorityExpire<int>(PriorityDelegate<DummyDelegate, int>(&o1, &DummyDelegate::onSimple, 0), 600000);
      Simple -= PriorityDelegate<DummyDelegate, int>(&o2, &DummyDelegate::onSimple2, 1);
      Simple.notify(this, tmp);
      assert (tmp == 2);
      
      // now start mixing of expire and non expire
      tmp = 0;
      Simple += PriorityExpire<int>(PriorityDelegate<DummyDelegate, int>(&o2, &DummyDelegate::onSimple2, 1), 500000);
      Simple += PriorityDelegate<DummyDelegate, int>(&o1, &DummyDelegate::onSimple, 0);
      
      Simple.notify(this, tmp);
      assert (tmp == 2);

      Simple -= PriorityDelegate<DummyDelegate, int>(&o2, &DummyDelegate::onSimple2, 1);
      // it is not forbidden to unregister a non expiring event with an expire decorator (it is just stupid ;-))
      Simple -= PriorityExpire<int>(PriorityDelegate<DummyDelegate, int>(&o1, &DummyDelegate::onSimple, 0), 600000);
      Simple.notify(this, tmp);
      assert (tmp == 2);

      // now try with the wrong order
      Simple += PriorityExpire<int>(PriorityDelegate<DummyDelegate, int>(&o2, &DummyDelegate::onSimple2, 0), 500000);
      Simple += PriorityDelegate<DummyDelegate, int>(&o1, &DummyDelegate::onSimple, 1);

      try
      {
            tmp = 0;
            Simple.notify(this, tmp);
            failmsg ("Notify should not work");
      }
      catch (Poco::InvalidArgumentException&)
      {
      }

      Simple -= PriorityExpire<int>(PriorityDelegate<DummyDelegate, int>(&o2, &DummyDelegate::onSimple2, 0), 500000);
      Simple -= PriorityDelegate<DummyDelegate, int>(&o1, &DummyDelegate::onSimple, 1);

}

void PriorityEventTest::testExpire()
{
      int tmp = 0;
      
      assert (_count == 0);

      Simple += PriorityExpire<int>(PriorityDelegate<PriorityEventTest, int>(this, &PriorityEventTest::onSimple, 1), 500);
      Simple.notify(this, tmp);
      assert (_count == 1);
      Poco::Thread::sleep(700);
      Simple.notify(this, tmp);
      assert (_count == 1);
      Simple -= PriorityExpire<int>(PriorityDelegate<PriorityEventTest, int>(this, &PriorityEventTest::onSimple, 1), 500);
}


void PriorityEventTest::testExpireReRegister()
{
      int tmp = 0;
      
      assert (_count == 0);

      Simple += PriorityExpire<int>(PriorityDelegate<PriorityEventTest, int>(this, &PriorityEventTest::onSimple, 1), 500);
      Simple.notify(this, tmp);
      assert (_count == 1);
      Poco::Thread::sleep(200);
      Simple.notify(this, tmp);
      assert (_count == 2);
      // renew registration
      Simple += PriorityExpire<int>(PriorityDelegate<PriorityEventTest, int>(this, &PriorityEventTest::onSimple, 1), 600);
      Poco::Thread::sleep(400);
      Simple.notify(this, tmp);
      assert (_count == 3);
      Poco::Thread::sleep(300);
      Simple.notify(this, tmp);
      assert (_count == 3);
}


void PriorityEventTest::testReturnParams()
{
      DummyDelegate o1;
      Simple += PriorityDelegate<DummyDelegate, int>(&o1, &DummyDelegate::onSimple, 0);

      int tmp = 0;
      Simple.notify(this, tmp);
      assert (tmp == 1);
}

void PriorityEventTest::testOverwriteDelegate()
{
      DummyDelegate o1;
      Simple += PriorityDelegate<DummyDelegate, int>(&o1, &DummyDelegate::onSimple2, 0);
      // o1 can only have one entry per priority, thus the next line will replace the entry
      Simple += PriorityDelegate<DummyDelegate, int>(&o1, &DummyDelegate::onSimple, 0);

      int tmp = 0; // onsimple requires 0 as input
      Simple.notify(this, tmp);
      assert (tmp == 1);
      // now overwrite with onsimple2 with requires as input tmp = 1
      Simple += PriorityExpire<int>(PriorityDelegate<DummyDelegate, int>(&o1, &DummyDelegate::onSimple2, 0), 23000);
      Simple.notify(this, tmp);
      assert (tmp == 2);
      Simple -= PriorityExpire<int>(PriorityDelegate<DummyDelegate, int>(&o1, &DummyDelegate::onSimple2, 0), 23000);
}

void PriorityEventTest::testAsyncNotify()
{
      Poco::PriorityEvent<int >* pSimple= new Poco::PriorityEvent<int>();
      (*pSimple) += PriorityDelegate<PriorityEventTest, int>(this, &PriorityEventTest::onAsync, 0);
      assert (_count == 0);
      int tmp = 0;
      Poco::ActiveResult<int>retArg = pSimple->notifyAsync(this, tmp);
      delete pSimple; // must work even when the event got deleted!
      pSimple = NULL;
      assert (_count == 0);
      retArg.wait();
      assert (retArg.data() == tmp);
      assert (_count == LARGEINC);
      
}

void PriorityEventTest::onSimple(const void* pSender, int& i)
{
      _count++;
}

void PriorityEventTest::onSimpleOther(const void* pSender, int& i)
{
      _count += LARGEINC ;
}

void PriorityEventTest::onConstSimple(const void* pSender, const int& i)
{
      _count++;
}

void PriorityEventTest::onComplex(const void* pSender, Poco::EventArgs* & i)
{
      _count++;
}

void PriorityEventTest::onComplex2(const void* pSender, Poco::EventArgs & i)
{
      _count++;
}

void PriorityEventTest::onConstComplex(const void* pSender, const Poco::EventArgs*& i)
{
      _count++;
}

void PriorityEventTest::onConst2Complex(const void* pSender, const Poco::EventArgs * const & i)
{
      _count++;
}

void PriorityEventTest::onAsync(const void* pSender, int& i)
{
      Poco::Thread::sleep(700);
      _count += LARGEINC ;
}

int PriorityEventTest::getCount() const
{
      return _count;
}

void PriorityEventTest::setUp()
{
      _count = 0;
      // must clear events, otherwise repeating test executions will fail
      // because tests are only created once, only setup is called before 
      // each test run
      Simple.clear();
      ConstSimple.clear();
      Complex.clear();
      Complex2.clear();
      ConstComplex.clear();
      Const2Complex.clear();
}


void PriorityEventTest::tearDown()
{
}


CppUnit::Test* PriorityEventTest::suite()
{
      CppUnit::TestSuite* pSuite = new CppUnit::TestSuite("PriorityEventTest");

      CppUnit_addTest(pSuite, PriorityEventTest, testNoDelegate);
      CppUnit_addTest(pSuite, PriorityEventTest, testSingleDelegate);
      CppUnit_addTest(pSuite, PriorityEventTest, testReturnParams);
      CppUnit_addTest(pSuite, PriorityEventTest, testDuplicateRegister);
      CppUnit_addTest(pSuite, PriorityEventTest, testDuplicateUnregister);
      CppUnit_addTest(pSuite, PriorityEventTest, testDisabling);
      CppUnit_addTest(pSuite, PriorityEventTest, testPriorityOrder);
      CppUnit_addTest(pSuite, PriorityEventTest, testPriorityOrderExpire);
      CppUnit_addTest(pSuite, PriorityEventTest, testExpire);
      CppUnit_addTest(pSuite, PriorityEventTest, testExpireReRegister);
      CppUnit_addTest(pSuite, PriorityEventTest, testOverwriteDelegate);
      CppUnit_addTest(pSuite, PriorityEventTest, testAsyncNotify);
      return pSuite;
}

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