/*

* 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);

	}