void UT_CMccJitterCalculator::SendJitterEvent( TMccRtpEventDataExtended aEvent, TInt aError )

    iCalculator->iStartingSeqNum = 80;

    iCalculator->iCurrentSeqNum = 100; 

    iCalculator->iReceivedPacketCounter = 20; // 100-80=20, no packets lost

    iCalculator->iFrameLossObsOn = ETrue;

    EUNIT_ASSERT_EQUALS( iLastEvent.iPacketLoss, 0 );

    EUNIT_ASSERT_EQUALS( iLastEvent.iPacketLoss, 0 );

    // Jitter and packet loss level defined by client exceeded

    iCalculator->iStartingSeqNum = 100;

    iCalculator->iCurrentSeqNum = 125; 

    iCalculator->iPrevFerValue = 93000; // 9%

    iCalculator->iPrevExpectedPackets = 20;

    iCalculator->iReceivedPacketCounter = 20; // 5 packets is lost. 

    User::After( 5000 );

    EUNIT_ASSERT_EQUALS( iLastEvent.iPacketLoss, 19 );

    EUNIT_ASSERT_EQUALS( iCalculator->iReceivedPacketCounter, 20 ); // counter is not zeroed

    iCalculator->iJitterObsOn = ETrue;

    iCalculator->iFrameLossObsOn = ETrue;

    iLastEvent.iPacketLoss = 0;

    iCalculator->iPacketsReceived = 2;

    iCalculator->iStartingSeqNum = 120;

    iCalculator->iCurrentSeqNum = 121; 

    iCalculator->iReceivedPacketCounter = 1; 

    iCalculator->iCurJitter = 10000;

    iCalculator->iJitterLevelFromClient = 10000;

    iCalculator->JitterObserving();

    //Check that nothing was changed in iLastEvent:

    EUNIT_ASSERT_EQUALS( iLastEvent.iPacketsReceived, 0 );

    EUNIT_ASSERT_EQUALS( iLastEvent.iPacketLoss, 0 );

    // One packet more...

    iCalculator->iPrevFerValue = 0; // 0%

    iCalculator->iCurrentSeqNum++;

    iCalculator->iReceivedPacketCounter++; 

    //Check that nothing was changed in iLastEvent:

    EUNIT_ASSERT_EQUALS( iLastEvent.iPacketsReceived, 0 );

    EUNIT_ASSERT_EQUALS( iLastEvent.iPacketLoss, 0 );

    //Do the packet loss, with reporting:

    iCalculator->iStartingSeqNum = 122;

    iCalculator->iCurrentSeqNum = 126; 

    iCalculator->iPrevFerValue = 98000; // 9%

    iCalculator->iPrevExpectedPackets = 1;

    iCalculator->iReceivedPacketCounter = 2; 

    iCalculator->iCurJitter = 10000;

    iCalculator->iJitterLevelFromClient = 10;

    //Check that values were changed in iLastEvent:

    EUNIT_ASSERT_EQUALS( iLastEvent.iPacketsReceived, 2 );

    EUNIT_ASSERT_EQUALS( iLastEvent.iPacketLoss, 20 );

    iCalculator->iFrameLossObsOn = ETrue;

    EUNIT_ASSERT_EQUALS( iLastEvent.iPacketsReceived, 2 ); // just making sure that callback was called

    EUNIT_ASSERT_EQUALS( iLastError, KErrArgument ); 

    iCalculator->iReportIntervalType = EMccQualityPacketBased;

    TUint testSeqNum = 222;

    iCalculator->iCurrentSeqNum = 0;

    iCalculator->iStartingSeqNum = 0;

    iCalculator->iReceivedPacketCounter = 0;

    const TInt PacketTimestamp1 = 1000;

    iCalculator->RtpPacketReceived( PacketTimestamp1, EFalse, testSeqNum );

    EUNIT_ASSERT( iCalculator->iCurrentSeqNum == 222 );

    EUNIT_ASSERT( iCalculator->iStartingSeqNum == 221 );

    EUNIT_ASSERT( iCalculator->iReceivedPacketCounter == 1 );

    testSeqNum++; //Increase seqnum for next packet. 

    const TInt PacketTimestamp2 = 3000;

    iCalculator->RtpPacketReceived( PacketTimestamp2, EFalse, testSeqNum );

    EUNIT_ASSERT( iCalculator->iCurrentSeqNum == 223 );

    EUNIT_ASSERT( iCalculator->iStartingSeqNum == 221 );

    EUNIT_ASSERT( iCalculator->iReceivedPacketCounter == 2 );

    iCalculator->iReportIntervalType = EMccQualityTimeBased;

    iCalculator->iFrameLossObsOn = EFalse;

    testSeqNum++; //Increase seqnum for next packet. 

    const TInt packetTimestamp3 = 4000;

    iCalculator->RtpPacketReceived( packetTimestamp3, EFalse, testSeqNum );

    EUNIT_ASSERT( iCalculator->iCurJitter != 0 );

    EUNIT_ASSERT_EQUALS( (TInt)iLastEvent.iPacketsReceived, 16 ); // just making sure that callback wasn't called

    EUNIT_ASSERT( iCalculator->iCurrentSeqNum == 223 );

    EUNIT_ASSERT( iCalculator->iStartingSeqNum == 221 );

    EUNIT_ASSERT( iCalculator->iReceivedPacketCounter == 2 );

    // Sequence number start from 0

    iCalculator->iReportIntervalType = EMccQualityPacketBased;

    iCalculator->iFrameLossObsOn = ETrue;

    testSeqNum = 0;

    const TInt packetTimestamp4 = 5000;

    iCalculator->RtpPacketReceived( packetTimestamp4, EFalse, testSeqNum );

    EUNIT_ASSERT( iCalculator->iCurJitter != 0 );

    EUNIT_ASSERT_EQUALS( (TInt)iLastEvent.iPacketsReceived, 16 ); // just making sure that callback wasn't called

    EUNIT_ASSERT_EQUALS( iCalculator->iCurrentSeqNum, 0);

    EUNIT_ASSERT( iCalculator->iStartingSeqNum == 0 );

    EUNIT_ASSERT( iCalculator->iReceivedPacketCounter == 3 );

    // Sequence number start from 1

    testSeqNum = 1;

    const TInt packetTimestamp5 = 6000;

    iCalculator->RtpPacketReceived( packetTimestamp5, EFalse, testSeqNum );

    EUNIT_ASSERT( iCalculator->iCurJitter != 0 );

    EUNIT_ASSERT_EQUALS( (TInt)iLastEvent.iPacketsReceived, 16 ); // just making sure that callback wasn't called

    EUNIT_ASSERT_EQUALS( iCalculator->iCurrentSeqNum, 1);

    EUNIT_ASSERT( iCalculator->iStartingSeqNum == 0 );

    EUNIT_ASSERT( iCalculator->iReceivedPacketCounter == 4 );

void UT_CMccJitterCalculator::UT_CMccJitterCalculator_CalculateFerL()

    {

    TUint32 returnValue( 0 );

    // packet  lost

    TUint32 prevValue( 0 );

    TBool valueToadd( ETrue );

    TBool flagToAdd( ETrue );

    returnValue = iCalculator->CalculateFer( prevValue, valueToadd, flagToAdd );

    EUNIT_ASSERT_EQUALS( returnValue, 2000 );

    // packet  lost

    // returnValue == 2000

    returnValue = iCalculator->CalculateFer( returnValue, valueToadd, flagToAdd );

    EUNIT_ASSERT_EQUALS( returnValue, 3992 );

    // no packet lost - late packet - remove FER

    // decrease fer

    flagToAdd = EFalse;

    // returnValue == 3996

    returnValue = iCalculator->CalculateFer( returnValue, valueToadd, flagToAdd );

    EUNIT_ASSERT_EQUALS( returnValue, 2008 );

    // no packet lost - late packet - remove FER

    // decrease fer

    flagToAdd = EFalse;

    // returnValue == 5

    returnValue = 5;

    returnValue = iCalculator->CalculateFer( returnValue, valueToadd, flagToAdd );

    EUNIT_ASSERT_EQUALS( returnValue, 0);

    }

void UT_CMccJitterCalculator::UT_CMccJitterCalculator_CountPacketLossPercentageL()

    {

    TInt percentage( 0 );

    iCalculator->iHomeTime.HomeTime();

    // Not active

    iCalculator->JitterObserving();

    iCalculator->iPrevFerValue = 0;

    iCalculator->iStartingSeqNum = 80;

    iCalculator->iCurrentSeqNum = 100;

    // no packets lost

    iCalculator->iPrevExpectedPackets = 20;

    iCalculator->iReceivedPacketCounter = 20;

    iCalculator->CountPacketLossPercentage();

    EUNIT_ASSERT_EQUALS( iCalculator->iPrevFerValue, 0 );

    EUNIT_ASSERT_EQUALS( iCalculator->iPrevExpectedPackets, 20 );

    EUNIT_ASSERT_EQUALS( iCalculator->iPrevPacketsReceived, 20 );

    // no packets lost, inorder

    iCalculator->iCurrentSeqNum = 102;  

    iCalculator->iPrevExpectedPackets = 22;

    iCalculator->CountPacketLossPercentage();

    EUNIT_ASSERT_EQUALS( iCalculator->iPrevFerValue, 0 );

    EUNIT_ASSERT_EQUALS( iCalculator->iPrevExpectedPackets, 22 );

    EUNIT_ASSERT_EQUALS( iCalculator->iPrevPacketsReceived, 20 );

    // packet  lost - add FER by number of packets lost.

    // 5 packets lost

    iCalculator->iPrevFerValue = 0;

    iCalculator->iStartingSeqNum = 80;

    iCalculator->iCurrentSeqNum = 105;

    iCalculator->iPrevExpectedPackets = 20;

    iCalculator->iReceivedPacketCounter = 20;

    percentage = iCalculator->CountPacketLossPercentage();

    EUNIT_ASSERT_EQUALS( percentage, 1 );

    EUNIT_ASSERT_EQUALS( iCalculator->iPrevFerValue, 7952 );

    EUNIT_ASSERT_EQUALS( iCalculator->iPrevExpectedPackets, 25 );

    EUNIT_ASSERT_EQUALS( iCalculator->iPrevPacketsReceived, 20 );

    }

void UT_CMccJitterCalculator::UT_CMccJitterCalculator_ResetCountersL()

    {

    iCalculator->iPacketsReceived = 20;

    iCalculator->iCurJitter = 200;

    iCalculator->iPrevPacketTransit = 100;

    iCalculator->iCurrentSeqNum = 25;

    iCalculator->iStartingSeqNum = 2;

    iCalculator->iReceivedPacketCounter = 30;

    iCalculator->ResetCounters();

    EUNIT_ASSERT_EQUALS( iCalculator->iPacketsReceived, 0 );

    EUNIT_ASSERT_EQUALS( iCalculator->iCurJitter, 0 );

    EUNIT_ASSERT_EQUALS( iCalculator->iPrevPacketTransit, 0 );

    EUNIT_ASSERT_EQUALS( iCalculator->iCurrentSeqNum, 0 );

    EUNIT_ASSERT_EQUALS( iCalculator->iStartingSeqNum, 0 );

    EUNIT_ASSERT_EQUALS( iCalculator->iReceivedPacketCounter, 0 );

    }

    "CMccJitterCalculator",

EUNIT_TEST(

    "CalculateFer - test ",

    "CMccJitterCalculator",

    "CalculateFer",

    "FUNCTIONALITY",

    SetupL, UT_CMccJitterCalculator_CalculateFerL, Teardown)

EUNIT_TEST(

    "CountPacketLossPercentage - test ",

    "CMccJitterCalculator",

    "CountPacketLossPercentage",

    "FUNCTIONALITY",

    SetupL, UT_CMccJitterCalculator_CountPacketLossPercentageL, Teardown)

EUNIT_TEST(

    "ResetCounters - test ",

    "CMccJitterCalculator",

    "ResetCounters",

    "FUNCTIONALITY",

    SetupL, UT_CMccJitterCalculator_ResetCountersL, Teardown)