/*

 * Copyright (c) 2001-2009 Nokia Corporation and/or its subsidiary(-ies).

 * All rights reserved.

 * This component and the accompanying materials are made available

 * under the terms of the License "Eclipse Public License v1.0"

 * which accompanies this distribution, and is available

 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

 *

 * Initial Contributors:

 * Nokia Corporation - initial contribution.

 *

 * Contributors:

 *

 * Description: 

 * Implementation for testing TInt encoding/decoding

 *

 */

 #include "testint.h"

 #include "tasn1normaltest.h"

 #include <asn1enc.h>

 #include <asn1dec.h>

 #include <e32math.h>

 #include <e32cons.h>

 CTestInt* CTestInt::NewL(CASN1NormalTest &aASN1Action)

 	{

 	CTestInt* test = new (ELeave) CTestInt(aASN1Action);

 	return test;

 	}

 CTestInt::CTestInt(CASN1NormalTest &aASN1Action) : CTestBase(aASN1Action)

 	{

 	};

 void CTestInt::GetName(TDes& aBuf)

 	{

 	aBuf.Copy(_L("Test TInt"));

 	}

 void CTestInt::FillParameterArray(void)

 	{

 	iParameters->Append(CTestParameter::EInt);

 	}

 TBool CTestInt::PerformTest(CConsoleBase& aConsole, const TInt &aTest, const TInt &aTestNumber, const TInt &aTotalTests)

 	{

 	// Choose value to encode

 	TInt encodedValue;

 	encodedValue = aTest;

 	// Get encoder

 	CASN1EncInt* encoder = CASN1EncInt::NewLC(encodedValue);

 	// Prepare a buffer

 	TUint length = encoder->LengthDER();

 	HBufC8* buf = HBufC8::NewMaxLC(length);

 	TPtr8 tBuf = buf->Des();

 	// Write into the buffer

 	TUint writeLength = 0;

 	encoder->WriteDERL(tBuf, writeLength);

 	// Read it out again

 	TASN1DecInteger decoder;

 	TInt readLength = 0;

 	TInt decodedValue = decoder.DecodeDERShortL(tBuf, readLength);

 	// Check lengths of reads + values

 	if ((writeLength != STATIC_CAST(TUint, readLength)) || (decodedValue != encodedValue))

 		{

 		aConsole.Printf(_L("\nERROR!  Problem integer: %d\n"), encodedValue);

 		iASN1Action.ReportProgressL(KErrASN1EncodingError, aTestNumber, aTotalTests);

 		CleanupStack::PopAndDestroy(2); // buf, encoder

 		return(EFalse);

 		}

 	else

 		{

 		iASN1Action.ReportProgressL(KErrNone, aTestNumber, aTotalTests);

 		CleanupStack::PopAndDestroy(2); // buf, encoder

 		return(ETrue);

 		}

 	}

 TBool CTestInt::PerformTestsL(CConsoleBase& aConsole)

 	{

 	TInt nLow = Math::Random();

 	TInt64 nHigh((TInt)Math::Random());

 	TInt64 seed((nHigh << 32) + nLow);

 	CTestParameter* test;

 	TInt totalTests, currentTest=0;

 	if(!CountTests(totalTests)) return(EFalse);

 	for(TInt pos = 0; pos < iValues->Count(); pos++)

 		{

 		test = (*iValues)[pos];

 		switch(test->GetType())

 			{

 			case CTestParameter::EInt :

 				{

 				CIntTestParameter *rangeInt = REINTERPRET_CAST(CIntTestParameter*, test);

 				if(!PerformTest(aConsole, rangeInt->Value(), currentTest, totalTests))

 					{

 					return(EFalse);

 					}

 				currentTest++;

 				break;

 				}

 			case CTestParameter::EIntRange :

 				{

 				CIntRangeTestParameter *rangeInt = REINTERPRET_CAST(CIntRangeTestParameter*, test);

 				for(TInt test = rangeInt->Start(); test <= rangeInt->Finish(); test++)

 					{

 					if(!PerformTest(aConsole, test, currentTest, totalTests))

 						{

 						return(EFalse);

 						}

 					currentTest++;

 					}

 				break;

 				}

 			case CTestParameter::ERandom :

 				{

 				CRandomTestParameter *randomInt = REINTERPRET_CAST(CRandomTestParameter*, test);

 				TInt encodedValue;

 				for(TInt test = 0; test <= randomInt->Interations(); test++)

 					{

 					encodedValue = Math::Rand(seed) >> (8 * (test % 4));

 					if(!PerformTest(aConsole, encodedValue, currentTest, totalTests))

 						{

 						return(EFalse);

 						}

 					currentTest++;

 					}

 				break;

 				}

 			default:

 				{

 				return EFalse;

 				}

 			}

 		}

 	iASN1Action.ReportProgressL(KErrNone, totalTests, totalTests);

 	return(ETrue);

 	}