sl@0: /*
sl@0: * Copyright (c) 2001-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: * All rights reserved.
sl@0: * This component and the accompanying materials are made available
sl@0: * under the terms of the License "Eclipse Public License v1.0"
sl@0: * which accompanies this distribution, and is available
sl@0: * at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: *
sl@0: * Initial Contributors:
sl@0: * Nokia Corporation - initial contribution.
sl@0: *
sl@0: * Contributors:
sl@0: *
sl@0: * Description: 
sl@0: * Implementation for testing octet string encoding/decoding
sl@0: *
sl@0: */
sl@0: 
sl@0: 
sl@0: #include "testoctetstr.h"
sl@0: #include "tasn1normaltest.h"
sl@0: #include <asn1enc.h>
sl@0: #include <asn1dec.h>
sl@0: 
sl@0: #include <e32math.h>
sl@0: #include <e32cons.h>
sl@0: 
sl@0: const TInt KMaxStringLength = 1000;
sl@0: 
sl@0: CTestOctetString* CTestOctetString::NewL(CASN1NormalTest &aASN1Action)
sl@0: 	{
sl@0: 	CTestOctetString* test = new (ELeave) CTestOctetString(aASN1Action);
sl@0: 	test->ConstructL();
sl@0: 	return test;
sl@0: 	}
sl@0: 
sl@0: CTestOctetString::CTestOctetString(CASN1NormalTest &aASN1Action) : CTestBase(aASN1Action)
sl@0: 	{
sl@0: 	};
sl@0: 
sl@0: void CTestOctetString::ConstructL()	
sl@0: 	{
sl@0: 	toEncodeBuf = HBufC8::NewMaxLC(KMaxStringLength);
sl@0: 	encodedBuf = HBufC8::NewMaxLC(KMaxStringLength + 10); // extra 10 for tag/length
sl@0: 	CleanupStack::Pop(2);
sl@0: 	};
sl@0: 
sl@0: void CTestOctetString::FillParameterArray(void)
sl@0: 	{
sl@0: 	iParameters->Append(CTestParameter::EString);
sl@0: 	}
sl@0: 
sl@0: 
sl@0: CTestOctetString::~CTestOctetString()	
sl@0: 	{
sl@0: 	delete toEncodeBuf;
sl@0: 	delete encodedBuf;
sl@0: 	}
sl@0: 
sl@0: void CTestOctetString::GetName(TDes& aBuf)
sl@0: 	{
sl@0: 	aBuf.Copy(_L("Test Octet String"));
sl@0: 	}
sl@0: 
sl@0: 
sl@0: TBool CTestOctetString::PerformTest(CConsoleBase& aConsole, const TPtr8 &toEncodePtr, const TInt &aTestNumber, const TInt &aTotalTests)
sl@0: 	{
sl@0: 	TPtr8 encodedPtr = encodedBuf->Des();
sl@0: 
sl@0: 	// Make the encoder
sl@0: 	CASN1EncOctetString* encoder = CASN1EncOctetString::NewLC(toEncodePtr);
sl@0: 
sl@0: 	// Do the encoding
sl@0: 	TUint writeLength = 0;
sl@0: 	encoder->WriteDERL(encodedPtr, writeLength);
sl@0: 	
sl@0: 	// Read it out again
sl@0: 	TASN1DecOctetString decoder;
sl@0: 	TInt readLength = 0;
sl@0: 	HBufC8* readBuf = decoder.DecodeDERL(encodedPtr, readLength);
sl@0: 	CleanupStack::PushL(readBuf);
sl@0: 	
sl@0: 	// Check lengths of reads + values
sl@0: 	if ((writeLength != STATIC_CAST(TUint, readLength)) || (*readBuf != toEncodePtr))
sl@0: 		{
sl@0: 		aConsole.Printf(_L("\nERROR!\n"));
sl@0: 		iASN1Action.ReportProgressL(KErrASN1EncodingError, aTestNumber, aTotalTests);
sl@0: 		CleanupStack::PopAndDestroy(2); // encoder, readBuf
sl@0: 		return(ETrue);
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		iASN1Action.ReportProgressL(KErrNone, aTestNumber, aTotalTests);
sl@0: 		CleanupStack::PopAndDestroy(2); // encoder, readBuf
sl@0: 		return(ETrue);
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: 
sl@0: TBool CTestOctetString::PerformTestsL(CConsoleBase& aConsole)
sl@0: 	{
sl@0: 	TInt nLow = Math::Random();
sl@0: 	TInt64 nHigh((TInt)Math::Random());	
sl@0: 	TInt64 seed((nHigh << 32) + nLow);
sl@0: 	CTestParameter* test;
sl@0: 	TInt totalTests, currentTest=0;
sl@0: 
sl@0: 	if(!CountTests(totalTests)) return(EFalse);
sl@0: 
sl@0: 	for(TInt pos = 0; pos < iValues->Count(); pos++)
sl@0: 		{
sl@0: 		test = (*iValues)[pos];
sl@0: 		switch(test->GetType())
sl@0: 			{
sl@0: 			case CTestParameter::EString :
sl@0: 				{
sl@0: 				CStringTestParameter *testString = REINTERPRET_CAST(CStringTestParameter*, test);
sl@0: 				HBufC* value = HBufC::NewLC(KMaxStringLength);
sl@0: 				TPtr tBuf = value->Des();
sl@0: 
sl@0: 				testString->GetValue(tBuf);
sl@0: 
sl@0: 				if((tBuf.Length() % 2) != 0)
sl@0: 					User::Leave(KErrArgument);
sl@0: 
sl@0: 				TPtr8 toEncodePtr(toEncodeBuf->Des());
sl@0: 				TUint theOctet;
sl@0: 				TInt octetPos=0;
sl@0: 
sl@0: 				for(TInt octet = 0; octet < tBuf.Length(); octet+=2)
sl@0: 					{
sl@0: 					TLex lex(tBuf.Mid(octet, 2));
sl@0: 					
sl@0: 					if(lex.Val(theOctet, EHex)!=KErrNone)
sl@0: 						User::Leave(KErrArgument);
sl@0: 					toEncodePtr[octetPos++] = STATIC_CAST(TUint8, theOctet);
sl@0: 					};
sl@0: 				if(PerformTest(aConsole, toEncodePtr, currentTest, totalTests))
sl@0: 					{
sl@0: 					CleanupStack::PopAndDestroy();
sl@0: 					currentTest++;
sl@0: 					}
sl@0: 				else
sl@0: 					{
sl@0: 					CleanupStack::PopAndDestroy();
sl@0: 					return(EFalse);
sl@0: 					}
sl@0: 				break;
sl@0: 				}
sl@0: 			case CTestParameter::ERandom :
sl@0: 				{
sl@0: 				CRandomTestParameter *randomInt = REINTERPRET_CAST(CRandomTestParameter*, test);
sl@0: 
sl@0: 				for (TInt count = 0; count <= randomInt->Interations(); ++count)
sl@0: 					{
sl@0: 					// Descriptor for part of buffer we'll use; fill with noise
sl@0: 					TInt toEncodeLength = count % KMaxStringLength;
sl@0: 					TPtr8 toEncodePtr(toEncodeBuf->Des());
sl@0: 					for (TInt i = 0; i < toEncodeLength; ++i)
sl@0: 						{
sl@0: 						toEncodePtr[i] = STATIC_CAST(TUint8, Math::Rand(seed));
sl@0: 						}
sl@0: 					if(!PerformTest(aConsole, toEncodePtr, currentTest, totalTests))
sl@0: 						return(EFalse);
sl@0: 					currentTest++;
sl@0: 					}
sl@0: 
sl@0: 				break;
sl@0: 				}
sl@0: 			default:
sl@0: 				{
sl@0: 				return EFalse;
sl@0: 				}
sl@0: 			}
sl@0: 		}
sl@0: 	iASN1Action.ReportProgressL(KErrNone, totalTests, totalTests);
sl@0: 	return(ETrue);
sl@0: 	};
sl@0: