/*

* Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "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: 

*

*/

#include <e32test.h>

#include <txtetext.h>

#define UNUSED_VAR(a) a = a

LOCAL_D RTest test(_L("SCANNING OF TEXT DOCUMENTS"));

LOCAL_D CTrapCleanup* TheTrapCleanup;

template<class S,CEditableText::TDocumentStorage D>

class CTestScan : public CPlainText

	{

public:

	static CTestScan* NewL();

	void Destruct();

	void Test1L();  // Tests all operations of the class.

	void Test2L();  // Test public methods of class.

	void Test2aL();  // Tests for CountWords

	void Test2bL();  // Tests for ScanWord

	void Test2cL();  // Tests for CountParagraphs

	void Test2dL();  // Tests for ScanParagraph

	void TestHeapSpace();  // Test for memory leakage

	void StoreTextL(TBuf<64>&);

	void DoCountWords(TInt);

	void DoCountParas(TInt);

	void DoScanWords(TInt aPos,TUint aFlags,TInt aEndPos,TInt aCharCheck);

	void DoScanParas(TInt aPos,TUint aFlags,TInt aEndPos,TInt aCharCheck);

	void InsertL(TInt aPos,const TDesC& aBuf);

public:

	CPlainText *iDocument;

	TInt iUnitCount;

	TInt iCharsSkipped;

	TChar iDelimiter;

	TInt startAvail,endAvail,temp;

private:

 CTestScan();  // Default constructor

 CTestScan(const CTestScan& aCTestScan);

 CTestScan& operator=(const CTestScan& aCTestScan);

	};

template<class S,CEditableText::TDocumentStorage D>

GLDEF_C CTestScan<S,D>* CTestScan<S,D>::NewL()

//

// constructs a new instance of this class.

//

	{

	CTestScan<S,D>* tmp=new(ELeave) CTestScan<S,D>;

	tmp->ConstructL(D);

	return tmp;

	}

template<class S,CEditableText::TDocumentStorage D>

GLDEF_C CTestScan<S,D>::CTestScan()

//

// Default constructor

//

	:iDelimiter(EParagraphDelimiter)

	{

	TRAPD(ret,iDocument=CPlainText::NewL(D));

    UNUSED_VAR(ret);

	}

template<class S,CEditableText::TDocumentStorage D>

void CTestScan<S,D>::Destruct()

//

//

//

	{

	delete iDocument;

	}

template<class S,CEditableText::TDocumentStorage D>

GLDEF_C void CTestScan<S,D>::InsertL(TInt aPos,const TDesC& aBuf)

//

	{CPlainText::InsertL(aPos,aBuf);}

template<class S,CEditableText::TDocumentStorage D>

GLDEF_C void CTestScan<S,D>::StoreTextL(TBuf<64>& aBuf)

//

// Insert from aBuf into document storage at position 0.

//

	{

	TInt length=iDocument->DocumentLength();

	if (length>0)

		{

		iDocument->DeleteL(0,(length));

		}

	TPtrC buf(aBuf);

	iDocument->InsertL(0,buf);

	iUnitCount=0;

	}			

template<class S,CEditableText::TDocumentStorage D>

GLDEF_C void CTestScan<S,D>::DoCountWords(TInt aCount)

//

// Calls CountWords, and checks that number of words

// counted, matches the known good value 'count'.

//

	{

	iUnitCount=iDocument->WordCount();

	test(aCount==iUnitCount);

	}

template<class S,CEditableText::TDocumentStorage D>

GLDEF_C void CTestScan<S,D>::DoCountParas(TInt aCount)

//

// Calls CountParagraphs, and checks that number

// counted, matches the known good value 'count'.

//

	{

	iUnitCount=iDocument->ParagraphCount();

	test(aCount==iUnitCount);

	}

template<class S,CEditableText::TDocumentStorage D>

GLDEF_C void CTestScan<S,D>::DoScanWords(TInt aPos,TUint aFlags,TInt aEndPos,TInt aCharCheck)

//

// Calls ScanWords and tests results are as expected.

//

	{

	iCharsSkipped=iDocument->ScanWords(aPos,aFlags);

	test(iCharsSkipped==aCharCheck);

	test(aPos==aEndPos);

	iCharsSkipped=0;

	}

template<class S,CEditableText::TDocumentStorage D>

GLDEF_C void CTestScan<S,D>::DoScanParas(TInt aPos,TUint aFlags,TInt aEndPos,TInt aCharCheck)

//

// Calls ScanParas and checks results are as expected.

//

	{

	iCharsSkipped=iDocument->ScanParas(aPos,aFlags);

	test(iCharsSkipped==aCharCheck);

	test(aPos==aEndPos);

	iCharsSkipped=0;

	}

template<class S,CEditableText::TDocumentStorage D>

GLDEF_C void CTestScan<S,D>::Test1L()

//

// Tests all operations of the class.

//

	{

	TBuf<64> temp1;

	temp1.Append(_L("The world"));	//	Create a descriptor over some text

	temp1.Append(iDelimiter);

	temp1.Append(iDelimiter);

	temp1.Append(_L("is a"));

	StoreTextL(temp1);

	iDocument->WordCount();

	TInt pos=5;

	TUint flags=(CPlainText::EScanToUnitStart|CPlainText::EScanJoinDelimiters|CPlainText::EScanStayIfBoundary);

	((CTestScan*)iDocument)->ScanWords(pos,flags);

	TBuf<64> temp2(_L("This is a paragraph"));

	temp2.Append(iDelimiter);

	iDocument->DeleteL(0,temp1.Length());

	StoreTextL(temp2);

	pos=0;

	flags=(CPlainText::EScanToUnitStart|CPlainText::EScanJoinDelimiters);

	((CTestScan*)iDocument)->ScanParas(pos,flags);

	iDocument->ParagraphCount();

	}

template<class S,CEditableText::TDocumentStorage D>

GLDEF_C void CTestScan<S,D>::Test2aL()

//

//	Tests the CountWords method with different cases

//

	{

	TBuf<64> temp;

	//test.Start(_L("0 words"));

	//iDocument->InsertL(0,buf.Ptr(),buf.Size());

	//DoCountWords(0);

	// This test has been removed since it is no longer feasible.

	// The design currently inserts an end of document character

	// as soon as the document is created, hence, there can not

	// be 0 words.

	test.Start(_L("0 words, all delimiters"));

	temp.Append(_L("   "));

	temp.Append(iDelimiter);

	temp.Append(_L("   "));

	StoreTextL(temp);

	DoCountWords(0);

	test.Next(_L("1 word, no delimiter"));

	temp.Append(_L("This"));

	StoreTextL(temp);

	DoCountWords(1);

	test.Next(_L("1 word, at start, no delimiter"));

	temp.Delete(0,temp.Size());

	temp.Append(_L("THIS"));

	StoreTextL(temp);

	DoCountWords(1);

	test.Next(_L("1 word, with delimiter"));

	temp.Append(' ');

	StoreTextL(temp);

	DoCountWords(1);

	test.Next(_L("Many words, no delimiter"));

	temp.Append(_L("  is a wonderful world"));

	StoreTextL(temp);

	DoCountWords(5);

	test.Next(_L("Many words with delimiter"));

	temp.Append(' ');

	StoreTextL(temp);

	DoCountWords(5);

	test.End();

	}

template<class S,CEditableText::TDocumentStorage D>

GLDEF_C void CTestScan<S,D>::Test2bL()

//

//	Tests the ScanWord method with different flag settings

//

	{

	TBuf<64> buf;

	buf.Append(_L(" This  tEsT  TeXT"));

	StoreTextL(buf);  

	iCharsSkipped=iUnitCount=0;

	test.Start(_L("Forward scan"));

	test.Next(_L("Stay at boundary:to unit start"));

	TUint flags=(CPlainText::EScanStayIfBoundary | CPlainText::EScanToUnitStart);

	DoScanWords(8,flags,12,4);

	DoScanWords(7,flags,7,0);

	DoScanWords(6,flags,6,0);

	DoScanWords(5,flags,6,1);

	test.Next(_L("Stay at boundary:to unit end"));

	flags |= CPlainText::EScanToUnitEnd;

	flags &=~CPlainText::EScanToUnitStart;

	DoScanWords(8,flags,11,3);

	DoScanWords(7,flags,11,4);

	DoScanWords(6,flags,6,0);

	DoScanWords(5,flags,5,0);

	test.Next(_L("Stay at boundary:to unit start:join delimiters"));

	flags=(CPlainText::EScanStayIfBoundary|CPlainText::EScanToUnitStart|CPlainText::EScanJoinDelimiters);

	DoScanWords(8,flags,13,5);

	DoScanWords(7,flags,7,0);

	DoScanWords(6,flags,7,1);

	DoScanWords(5,flags,7,2);

	test.Next(_L("Stay at boundary:to unit end:join delimiters"));

	flags |= CPlainText::EScanToUnitEnd;

	flags &=~CPlainText::EScanToUnitStart;

	DoScanWords(8,flags,11,3);

	DoScanWords(7,flags,11,4);

	DoScanWords(6,flags,11,5);

	DoScanWords(5,flags,5,0);

	test.Next(_L("To unit start"));

	flags=CPlainText::EScanToUnitStart;

	DoScanWords(8,flags,12,4);

	DoScanWords(7,flags,12,5);

	DoScanWords(6,flags,7,1);

	DoScanWords(5,flags,6,1);

	test.Next(_L("To unit end"));

	flags |= CPlainText::EScanToUnitEnd;

	flags &=~CPlainText::EScanToUnitStart;

	DoScanWords(8,flags,11,3);

	DoScanWords(7,flags,11,4);

	DoScanWords(6,flags,11,5);

	DoScanWords(5,flags,6,1);

	test.Next(_L("To unit start:join delimiters"));

	flags=(CPlainText::EScanToUnitStart|CPlainText::EScanJoinDelimiters);

	DoScanWords(8,flags,13,5);

	DoScanWords(7,flags,13,6);

	DoScanWords(6,flags,7,1);

	DoScanWords(5,flags,7,2);

	test.Next(_L("To unit end:join delimiters"));

	flags |= CPlainText::EScanToUnitEnd;

	flags &=~CPlainText::EScanToUnitStart;

	DoScanWords(8,flags,11,3);

	DoScanWords(7,flags,11,4);

	DoScanWords(6,flags,11,5);

	DoScanWords(5,flags,11,6);

	test.Next(_L("Backward scan"));

	test.Next(_L("Stay at boundary:to unit start"));

	flags=(CPlainText::EScanBackwards|CPlainText::EScanStayIfBoundary|CPlainText::EScanToUnitStart);

	DoScanWords(9,flags,7,2);

	DoScanWords(10,flags,7,3);

	DoScanWords(11,flags,7,4);

	DoScanWords(12,flags,12,0);

	DoScanWords(13,flags,13,0);

	test.Next(_L("Stay at boundary:to unit end"));

	flags |= CPlainText::EScanToUnitEnd;

	flags &=~CPlainText::EScanToUnitStart;

	DoScanWords(9,flags,6,3);

	DoScanWords(10,flags,6,4);

	DoScanWords(11,flags,11,0);

	DoScanWords(12,flags,12,0);

	DoScanWords(13,flags,12,1);

	test.Next(_L("Stay at boundary:to unit start:join delimiters"));

	flags=CPlainText::EScanBackwards|CPlainText::EScanStayIfBoundary|CPlainText::EScanToUnitStart|CPlainText::EScanJoinDelimiters;

	DoScanWords(9,flags,7,2);

	DoScanWords(10,flags,7,3);

	DoScanWords(11,flags,7,4);

	DoScanWords(12,flags,7,5);

	DoScanWords(13,flags,13,0);

	test.Next(_L("Stay at boundary:to unit end:join delimiters"));

	flags |= CPlainText::EScanToUnitEnd;

	flags &=~CPlainText::EScanToUnitStart;

	DoScanWords(9,flags,5,4);

	DoScanWords(10,flags,5,5);

	DoScanWords(11,flags,11,0);

	DoScanWords(12,flags,11,1);

	DoScanWords(13,flags,11,2);

	test.Next(_L("To unit start"));

	flags=CPlainText::EScanBackwards|CPlainText::EScanToUnitStart;

	DoScanWords(9,flags,7,2);

	DoScanWords(10,flags,7,3);

	DoScanWords(11,flags,7,4);

	DoScanWords(12,flags,7,5);

	DoScanWords(13,flags,12,1);

	test.Next(_L("To unit end"));

	flags |= CPlainText::EScanToUnitEnd;

	flags &=~CPlainText::EScanToUnitStart;

	DoScanWords(9,flags,6,3);

	DoScanWords(10,flags,6,4);

	DoScanWords(11,flags,6,5);

	DoScanWords(12,flags,11,1);

	DoScanWords(13,flags,12,1);

	test.Next(_L("To unit start:join delimiters"));

	flags=CPlainText::EScanBackwards|CPlainText::EScanToUnitStart|CPlainText::EScanJoinDelimiters;

	DoScanWords(9,flags,7,2);

	DoScanWords(10,flags,7,3);

	DoScanWords(11,flags,7,4);

	DoScanWords(12,flags,7,5);

	DoScanWords(13,flags,7,6);

	test.Next(_L("To unit end:join delimiters"));

	flags=CPlainText::EScanToUnitEnd|CPlainText::EScanJoinDelimiters|CPlainText::EScanBackwards;

	DoScanWords(9,flags,5,4);

	DoScanWords(10,flags,5,5);

	DoScanWords(11,flags,5,6);

	DoScanWords(12,flags,11,1);

	DoScanWords(13,flags,11,2);

	test.End();

	}

template<class S,CEditableText::TDocumentStorage D>

GLDEF_C void CTestScan<S,D>::Test2cL()

//

//	Tests the CountParagraphs method with different cases

//

	{

	TBuf<64> buf;

	//test.Start(_L("0 paras"));

	//iDocument->InsertL(0,buf.Ptr(),buf.Size());

	//DoCountParagraphs(0);

	// This test no longer applies, since documents are created with

	// an end of document character.  ie, The document can not have

	// 0 words.

	test.Start(_L("Empty text source"));

//	buf.Append(iDelimiter);

//	buf.Append(iDelimiter);

	StoreTextL(buf);

	DoCountParas(1);

	test.Next(_L("1 para. no delimiter"));

	buf.Append(_L("This"));

	StoreTextL(buf);

	DoCountParas(1);

	test.Next(_L("1 para. at start, no delimiter"));

	buf.Delete(0,buf.Size());

	buf.Append(_L(" THIS   "));

	StoreTextL(buf);

	DoCountParas(1);

	test.Next(_L("1 para, with delimiter"));

	buf.Append(iDelimiter);

	StoreTextL(buf);

	DoCountParas(2);

	test.Next(_L("2 paras, no delimiter"));

	buf.Append(' ');

	StoreTextL(buf);

	DoCountParas(2);

	test.Next(_L("2 paras with delimiter"));

	buf.Append(iDelimiter);

	StoreTextL(buf);

	DoCountParas(3);

	test.End();

	}

template<class S,CEditableText::TDocumentStorage D>

GLDEF_C void CTestScan<S,D>::Test2dL()

//

//	Tests the ScanParagraph method with different flag settings

//

	{

	TBuf<64> buf;

	buf.Append(_L(" This"));

	buf.Append(iDelimiter);

	buf.Append(iDelimiter);

	buf.Append(_L("tEsT"));

	buf.Append(iDelimiter);

	buf.Append(iDelimiter);

	buf.Append(_L("TeXT"));

	StoreTextL(buf);  

	iCharsSkipped=iUnitCount=0;

	test.Start(_L("Forward scan"));

	test.Next(_L("Stay at boundary:to unit start"));

	TUint flags=(CPlainText::EScanStayIfBoundary|CPlainText::EScanToUnitStart);

	DoScanParas(8,flags,12,4);

	DoScanParas(7,flags,7,0);

	DoScanParas(6,flags,6,0);

	DoScanParas(5,flags,6,1);

	test.Next(_L("Stay at boundary:to unit end"));

	flags |= CPlainText::EScanToUnitEnd;

	flags &=~CPlainText::EScanToUnitStart;

	DoScanParas(8,flags,11,3);

	DoScanParas(7,flags,11,4);

	DoScanParas(6,flags,6,0);

	DoScanParas(5,flags,5,0);

	test.Next(_L("Stay at boundary:to unit start:join delimiters"));

	flags=(CPlainText::EScanStayIfBoundary | CPlainText::EScanToUnitStart | CPlainText::EScanJoinDelimiters);

	DoScanParas(8,flags,13,5);

	DoScanParas(7,flags,7,0);

	DoScanParas(6,flags,7,1);

	DoScanParas(5,flags,7,2);

	test.Next(_L("Stay at boundary:to unit end:join delimiters"));

	flags |= CPlainText::EScanToUnitEnd;

	flags &=~CPlainText::EScanToUnitStart;

	DoScanParas(8,flags,11,3);

	DoScanParas(7,flags,11,4);

	DoScanParas(6,flags,11,5);

	DoScanParas(5,flags,5,0);

	test.Next(_L("To unit start"));

	flags=CPlainText::EScanToUnitStart;

	DoScanParas(8,flags,12,4);

	DoScanParas(7,flags,12,5);

	DoScanParas(6,flags,7,1);

	DoScanParas(5,flags,6,1);

	test.Next(_L("To unit end"));

	flags |= CPlainText::EScanToUnitEnd;

	flags &=~CPlainText::EScanToUnitStart;

	DoScanParas(8,flags,11,3);

	DoScanParas(7,flags,11,4);

	DoScanParas(6,flags,11,5);

	DoScanParas(5,flags,6,1);

	test.Next(_L("To unit start:join delimiters"));

	flags=(CPlainText::EScanToUnitStart | CPlainText::EScanJoinDelimiters);

	DoScanParas(8,flags,13,5);

	DoScanParas(7,flags,13,6);

	DoScanParas(6,flags,7,1);

	DoScanParas(5,flags,7,2);

	test.Next(_L("To unit end:join delimiters"));

	flags |= CPlainText::EScanToUnitEnd;

	flags &=~CPlainText::EScanToUnitStart;

	DoScanParas(8,flags,11,3);

	DoScanParas(7,flags,11,4);

	DoScanParas(6,flags,11,5);

	DoScanParas(5,flags,11,6);

	test.Next(_L("Backward scan"));

	test.Next(_L("Stay at boundary:to unit start"));

	flags=(CPlainText::EScanBackwards|CPlainText::EScanStayIfBoundary|CPlainText::EScanToUnitStart);

	DoScanParas(9,flags,7,2);

	DoScanParas(10,flags,7,3);

	DoScanParas(11,flags,7,4);

	DoScanParas(12,flags,12,0);

	DoScanParas(13,flags,13,0);

	DoScanParas(7,flags,7,0);