// Copyright (c) 2007-2009 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:

// N.B. Before running this test on WINS, ensure that the estart.txt file contains 

// nothing but  EFAT32 i.e. no EFAT - otherwise the FAT16 file system will be used

// On target ensure that the FAT32 filesystem is in the ROM instead of the FAT16 file system

// This test expects the following files to be present before running the test:

// size			name

// 2147483647	\F32-TST\File2GBMinusOne.txt

// 2147483648	\F32-TST\File2GB.txt

// 3221225472	\F32-TST\File3GB.txt

// 4294967295	\F32-TST\File4GBMinusOne.txt	// may be absent on an 8GB disk

// For verification purposes, Every 4 bytes of each file contains the current position, e.g.

// 0000: 00 00 00 00 

// 0004: 04 00 00 00

// 0008: 08 00 00 00

// .. etc

// These files can be created using the BigFileWriter tool in f32test/tool

// If this test is run on the emulator and the __MOUNT_RAW_EXT__ macro is defined (see below) then

// the T_RAWEXT file system extension will be loaded; this extension allows reading and writing to 

// a windows disk in "raw" format, thus allowing direct access to a windows disk. see f32test/ext/t_rawext

// for more details.

// 

//

#include <f32file.h>

#include <e32test.h>

#include <e32svr.h>

#include "t_server.h"

GLDEF_D RTest test(_L("T_BIGFILE"));

#ifdef __WINS__

// enable this macro to mount the RAWEXT.FXT file system extension to test on a particular windows drive

#define __MOUNT_RAW_EXT__

#endif

#ifdef __MOUNT_RAW_EXT__

_LIT(KExtName,"RAWEXT");

_LIT(KFAT32FName,"EFAT32");

_LIT(KFATName,"FAT");

TFullName gOldFsName;

#endif

TInt gDrive;

TBool gNTFS=EFalse;

const TUint K1Kb = 1 << 10;

//const TUint K1Mb = 1 << 20;

const TUint K1Gb = 1 << 30;

const TUint K2Gb = 0x80000000;

const TUint K2GbMinusOne = 0x7FFFFFFF;

const TUint K3Gb = 0xC0000000;

const TUint K4GbMinusOne = 0xFFFFFFFF;

const TUint KPosMask     = 0xFFFFFFFC;

//const TUint KBigFileSizeSigned = KMaxTInt32;		// 2Gb -1

//const TUint KBigFileSizeUnsigned = KMaxTUint32;	// 4Gb -1

const TInt KBufSize = (256 * K1Kb);

HBufC8* gBuf = NULL;

TPtr8 gBufPtr(NULL, 0, 0);

_LIT(KFile2GBMinusOne, "File2GBMinusOne.txt");

_LIT(KFile2GB, "File2GB.txt");

_LIT(KFile3GB, "File3GB.txt");

_LIT(KFile4GBMinusOne, "File4GBMinusOne.txt");

TInt gFilesInDirectory = 4;

// return ETrue if the specifiled file is present

TBool FilePresent(const TDesC& aFileName)

	{

	TEntry entry;

	TInt r = TheFs.Entry(aFileName, entry);

	return (r == KErrNone ? (TBool)ETrue : (TBool)EFalse);

	}

class CFileManObserver : public CBase, public MFileManObserver

	{

public:

	CFileManObserver(CFileMan* aFileMan);

	TControl NotifyFileManStarted();

	TControl NotifyFileManOperation();

	TControl NotifyFileManEnded();

private:

	CFileMan* iFileMan;

public:

	TInt iNotifyEndedSuccesses;

	TInt iNotifyEndedFailures;

	};

CFileManObserver::CFileManObserver(CFileMan* aFileMan)

	{

	__DECLARE_NAME(_S("CFileManObserver"));

	iFileMan=aFileMan;

	}

MFileManObserver::TControl CFileManObserver::NotifyFileManStarted()

	{

	TInt lastError = iFileMan->GetLastError();

	TFileName fileName = iFileMan->CurrentEntry().iName;

	test.Printf(_L("NotifyFileManStarted(): Error %d File %S\n"),lastError, &fileName);

	return(MFileManObserver::EContinue);

	}

MFileManObserver::TControl CFileManObserver::NotifyFileManOperation()

	{

	TInt lastError = iFileMan->GetLastError();

	TFileName fileName = iFileMan->CurrentEntry().iName;

	test.Printf(_L("NotifyFileManOperation(): Error %d File %S\n"),lastError, &fileName);

	return(MFileManObserver::EContinue);

	}

MFileManObserver::TControl CFileManObserver::NotifyFileManEnded()

	{

	TInt lastError = iFileMan->GetLastError();

	TFileName fileName = iFileMan->CurrentEntry().iName;

	test.Printf(_L("NotifyFileManEnded(): Error %d File %S\n"),lastError, &fileName);

	if (lastError == KErrNone)

		iNotifyEndedSuccesses++;

	else

		iNotifyEndedFailures++;

	return(MFileManObserver::EContinue);

	}

//----------------------------------------------------------------------------------------------

//! @SYMTestCaseID      PBASE-T_BIGFILE-0001

//! @SYMTestType        CIT

//! @SYMTestCaseDesc    Test that 2GB-1 file can be opened and read

//! @SYMTestActions     Open the file, seek to end-1K and read some data. Verify the results

//! @SYMTestExpectedResults Should succeed

//! @SYMTestPriority    High

//! @SYMTestStatus      Implemented

//----------------------------------------------------------------------------------------------

void OpenAndRead2GBMinusOne()

	{

	RFile f;

	TEntry entry;

	TUint testSize;

	TUint size;

	TUint testPos;

	TInt r;

	TPtr8 bufPtr = gBuf->Des();

	bufPtr.SetLength(bufPtr.MaxLength());

	const TFileName fname = KFile2GBMinusOne();

	test.Next(_L("2GBMinusOne File: Open"));

	r = f.Open(TheFs, fname, EFileRead);

	test(r==KErrNone);

	testSize = K2GbMinusOne;

	test.Next(_L("2GBMinusOne File: Read"));

	r=f.Size((TInt&) size);

	test(r==KErrNone);

	test(size == testSize);

	r = TheFs.Entry(fname, entry);

	test(r==KErrNone);

	test ((TUint) entry.iSize == testSize);

	// seek to just below 2GB

	testPos = (K2GbMinusOne - K1Kb) & KPosMask;

	r = f.Seek(ESeekStart, (TInt&) testPos);

	test(r==KErrNone);

	r = f.Read(bufPtr);

	test(r==KErrNone);

	TUint posRead =  * ((TUint*) &bufPtr[0]);

	test.Printf(_L("position read %08X, expected %08X\n"), posRead, testPos);

	test(posRead == testPos);

	f.Close();

	}

//----------------------------------------------------------------------------------------------

//! @SYMTestCaseID      PBASE-T_BIGFILE-0002

//! @SYMTestType        CIT

//! @SYMTestCaseDesc    Test that attempting to open a 2GB file fails

//! @SYMTestActions     Open the file

//! @SYMTestExpectedResults KErrToBig

//! @SYMTestPriority    High

//! @SYMTestStatus      Implemented

//----------------------------------------------------------------------------------------------

void Open2GB()

	{

	RFile f;

	TEntry entry;

	TUint testSize;

	TInt r;

	TPtr8 bufPtr = gBuf->Des();

	bufPtr.SetLength(bufPtr.MaxLength());

	const TFileName fname = KFile2GB();

	testSize = K2Gb;

	test.Next(_L("2GB File: Test the size with RFs::Entry"));

	r = TheFs.Entry(fname, entry);

	test(r==KErrNone);

	test ((TUint) entry.iSize == testSize);

	test.Next(_L("2GB File: Attempt to open (should fail with KErrToBig)"));

	r = f.Open(TheFs, fname, EFileRead);

	test(r==KErrTooBig);

	}

//----------------------------------------------------------------------------------------------

//! @SYMTestCaseID      PBASE-T_BIGFILE-0003

//! @SYMTestType        CIT

//! @SYMTestCaseDesc    Test that attempting to open a 2GB file fails

//! @SYMTestActions     Open the file

//! @SYMTestExpectedResults KErrToBig

//! @SYMTestPriority    High

//! @SYMTestStatus      Implemented

//----------------------------------------------------------------------------------------------

void Open3GB()

	{

	RFile f;

	TEntry entry;

	TUint testSize;

	TInt r;

	TPtr8 bufPtr = gBuf->Des();

	bufPtr.SetLength(bufPtr.MaxLength());

	const TFileName fname = KFile3GB();

	testSize = K3Gb;

	test.Next(_L("3GB File: Test the size with RFs::Entry"));

	r = TheFs.Entry(fname, entry);

	test(r==KErrNone);

	test ((TUint) entry.iSize == testSize);

	test.Next(_L("3GB File: Attempt to open (should fail with KErrToBig)"));

	r = f.Open(TheFs, fname, EFileRead);

	test(r==KErrTooBig);

	}

//----------------------------------------------------------------------------------------------

//! @SYMTestCaseID      PBASE-T_BIGFILE-0004

//! @SYMTestType        CIT

//! @SYMTestCaseDesc    Test that attempting to open a 4GB file fails

//! @SYMTestActions     Open the file

//! @SYMTestExpectedResults KErrToBig

//! @SYMTestPriority    High

//! @SYMTestStatus      Implemented

//----------------------------------------------------------------------------------------------

void Open4GB()

	{

	RFile f;

	TEntry entry;

	TUint testSize;

	TInt r;

	TPtr8 bufPtr = gBuf->Des();

	bufPtr.SetLength(bufPtr.MaxLength());

	const TFileName fname = KFile4GBMinusOne();

	testSize = K4GbMinusOne;

	test.Next(_L("4GB File: Test the size with RFs::Entry"));

	r = TheFs.Entry(fname, entry);

	test(r==KErrNone);

	test ((TUint) entry.iSize == testSize);

	test.Next(_L("4GB File: Attempt to open (should fail with KErrToBig)"));

	r = f.Open(TheFs, fname, EFileRead);

	test(r==KErrTooBig);

	}

//----------------------------------------------------------------------------------------------

//! @SYMTestCaseID      PBASE-T_BIGFILE-0005

//! @SYMTestType        CIT

//! @SYMTestCaseDesc    Attempt to append to the end of a 2GB-1 file

//! @SYMTestActions     Open the file, seek to end and write one byte

//! @SYMTestExpectedResults RFile::Write(0 returns KErrToBig

//! @SYMTestPriority    High

//! @SYMTestStatus      Implemented

//----------------------------------------------------------------------------------------------

void Extend2GBMinusOne()

	{

	RFile f;

	TEntry entry;

	TUint testSize;

	TUint size;

	TUint testPos;

	TInt r;

	TPtr8 bufPtr = gBuf->Des();

	bufPtr.SetLength(bufPtr.MaxLength());

	const TFileName fname = KFile2GBMinusOne();

	testSize = K2GbMinusOne;

	test.Next(_L("2GBMinusOne File: Open"));

	r = f.Open(TheFs, fname, EFileRead | EFileWrite);

	test(r==KErrNone);

	test.Next(_L("2GBMinusOne File: Attempt to extend"));

	r=f.Size((TInt&) size);

	test(r==KErrNone);

	test(size == testSize);

	r = TheFs.Entry(fname, entry);

	test(r==KErrNone);

	test ((TUint) entry.iSize == testSize);

	// seek to end

	testPos = 0;

	r = f.Seek(ESeekEnd, (TInt&) testPos);

	test(r==KErrNone);

	bufPtr.SetLength(1);

	r = f.Write(bufPtr);

	test(r==KErrTooBig);

	f.Close();

	}

//----------------------------------------------------------------------------------------------

//! @SYMTestCaseID      PBASE-T_BIGFILE-0006

//! @SYMTestType        CIT

//! @SYMTestCaseDesc    Check that deleting a large file frees cluster properly

//! @SYMTestActions     Delete the passed file name, call RFs::CheckDisk

//!						On windows, we could run chkdsk utility 

//! @SYMTestExpectedResults RFs::CheckDisk returns success

//! @SYMTestPriority    High

//! @SYMTestStatus      Implemented

//----------------------------------------------------------------------------------------------

void DeleteLargeFile(const TDesC& aFileName)

	{

	test.Next(_L("Delete large file"));

	test.Printf(_L("Deleting %S\n"), &aFileName);

	TInt r = TheFs.Delete(aFileName);

	test(r==KErrNone);

	CheckDisk();

	}

//----------------------------------------------------------------------------------------------

//! @SYMTestCaseID      PBASE-T_BIGFILE-0007

//! @SYMTestType        CIT

//! @SYMTestCaseDesc    Check that we can get a valid directory listing of a directory 

//!						containing large files using RDir and then CDir

//! @SYMTestActions     Open the directory using RDir and examine the results

//!						On windows, we could run chkdsk utility 

//! @SYMTestExpectedResults The expected number of files should exist with the correct sizes

//! @SYMTestPriority    High

//! @SYMTestStatus      Implemented

//----------------------------------------------------------------------------------------------

void ReadDirectory()

	{

	test.Next(_L("Read a directory containing large files using RDir"));

	RDir dir;

	TInt r = dir.Open(TheFs, _L("*.*"), KEntryAttNormal);

	test (r == KErrNone);

	TEntryArray entryArray;

	r = dir.Read(entryArray);

	test (r == KErrEof);

	test(entryArray.Count() == gFilesInDirectory);

	TInt n;

	for (n=0; n<entryArray.Count(); n++)

		{

		const TEntry& entry = entryArray[n];

		if (entry.iName.MatchF(KFile2GBMinusOne()) == 0)

			{

			test((TUint) entry.iSize == K2GbMinusOne);

			}

		else if (entry.iName.MatchF(KFile2GB()) == 0)

			{

			test((TUint) entry.iSize == K2Gb);

			}

		else if (entry.iName.MatchF(KFile3GB()) == 0)

			{

			test((TUint) entry.iSize == K3Gb);

			}

		else if (entry.iName.MatchF(KFile4GBMinusOne()) == 0)

			{

			test((TUint) entry.iSize == K4GbMinusOne);

			}

		else

			test(EFalse);

		}

	dir.Close();

	test.Next(_L("Read a directory containing large files using CDir & sort by size"));

	CDir* dirList;

	r=TheFs.GetDir(_L("*.*"), KEntryAttMaskSupported, ESortBySize, dirList);

	test(r==KErrNone);

	test(dirList->Count() == gFilesInDirectory);

	for (n=0; n<dirList->Count(); n++)

		{

		TEntry entry;

		entry=(*dirList)[n];

		// test.Printf(_L("#%d: %08X %d %S"), n, entry.iSize, entry.iSize, &entry.iName);

		if (entry.iName.MatchF(KFile2GBMinusOne()) == 0)

			{

			test((TUint) entry.iSize == K2GbMinusOne);

			test(n == 0);	// test entry has been sorted correctly (i.e. according to size)

			}

		else if (entry.iName.MatchF(KFile2GB()) == 0)

			{

			test((TUint) entry.iSize == K2Gb);

			test(n == 1);

			}

		else if (entry.iName.MatchF(KFile3GB()) == 0)

			{

			test((TUint) entry.iSize == K3Gb);

			test(n == 2);

			}

		else if (entry.iName.MatchF(KFile4GBMinusOne()) == 0)

			{

			test((TUint) entry.iSize == K4GbMinusOne);

			test(n == 3);

			}

		else

			test(EFalse);

		}

	delete dirList;

	}

//----------------------------------------------------------------------------------------------

//! @SYMTestCaseID      PBASE-T_BIGFILE-0008

//! @SYMTestType        CIT

//! @SYMTestCaseDesc    Check that we can a move a directory containing large files 

//!						Using CFileMan::Move()	

//! @SYMTestActions     Use CFileMan::Move() to move files from one directory to another

//! @SYMTestExpectedResults The files should be moved correctly

//! @SYMTestPriority    High

//! @SYMTestStatus      Implemented

//----------------------------------------------------------------------------------------------

void MoveDirectory()

	{

	test.Next(_L("Move a directory containing large files"));

	CFileMan* fileMan = CFileMan::NewL(TheFs);

	test(fileMan != NULL);

	TPath filePathOld = gSessionPath;

	filePathOld+= _L("*.*");

	TPath filePathNew =	_L("?:\\TEST\\");

	TChar driveLetter;

	TInt r=TheFs.DriveToChar(gDrive,driveLetter);

	test(r==KErrNone);

	filePathNew[0] = (TText) driveLetter;

	// move to new directory

	r = fileMan->Move(filePathOld, filePathNew, CFileMan::ERecurse | CFileMan::EOverWrite);

	test(r == KErrNone);

	// then move back again

	r = fileMan->Move(filePathNew, filePathOld);

	test(r == KErrNone);

	delete fileMan;

	}

//----------------------------------------------------------------------------------------------

//! @SYMTestCaseID      PBASE-T_BIGFILE-0009

//! @SYMTestType        CIT

//! @SYMTestCaseDesc    Check that we can copy a directory containing large file(s)

//!						Using CFileMan::Copy()	

//! @SYMTestActions     Use CFileMan::Copy() to copy files from one directory to another

//! @SYMTestExpectedResults The files should be copied correctly

//! @SYMTestPriority    High

//! @SYMTestStatus      Implemented

//----------------------------------------------------------------------------------------------

void CopyDirectory()

	{

	test.Next(_L("Copy a directory containing large files"));

	CFileMan* fileMan = CFileMan::NewL(TheFs);

	test(fileMan != NULL);

	CFileManObserver* observer = new CFileManObserver(fileMan);

	test(observer != NULL);

	TPath filePathOld = gSessionPath;

	filePathOld+= _L("*.*");

	TPath filePathNew =	_L("?:\\TEST\\");

	TChar driveLetter;

	TInt r = TheFs.DriveToChar(gDrive,driveLetter);

	test(r == KErrNone);

	filePathNew[0] = (TText) driveLetter;

	// create some small files in the source directory 

	// so that there is a combination of small files and one large files

	RFile file;

	_LIT(KFileSmall1, "FileSmallOne.txt");

	_LIT(KFileSmall2, "FileSmallTwo.txt");

	_LIT(KFileSmall3, "FileSmallThree.txt");

	r = file.Create(TheFs, KFileSmall1(), EFileWrite | EFileShareAny);

	test(r == KErrNone);

	r = file.Write(_L8("1"));

	test(r == KErrNone);

	file.Close();

	r = file.Create(TheFs, KFileSmall2(), EFileWrite | EFileShareAny);

	test(r == KErrNone);

	r = file.Write(_L8("12"));

	test(r == KErrNone);

	file.Close();

	r = file.Create(TheFs, KFileSmall3(), EFileWrite | EFileShareAny);

	test(r == KErrNone);

	r = file.Write(_L8("123"));

	test(r == KErrNone);

	file.Close();

	// copy to new directory

	r = fileMan->Copy(filePathOld, filePathNew, CFileMan::ERecurse | CFileMan::EOverWrite);

	test(r == KErrNone || r == KErrTooBig);

	// check SMALL files have been copied

	RDir dir;

	r = dir.Open(TheFs, filePathNew, KEntryAttNormal);

	test (r == KErrNone);

	TEntryArray entryArray;

	r = dir.Read(entryArray);

	test (r == KErrEof);

	test(entryArray.Count() == 3);

	dir.Close();

	// then delete the new directory

	r = fileMan->Delete(filePathNew);

	test(r == KErrNone);

	// attempt to copy to new directory again - this time with an observer

	fileMan->SetObserver(observer);

	r = fileMan->Copy(filePathOld, filePathNew, CFileMan::ERecurse | CFileMan::EOverWrite);

	test(r == KErrNone || r == KErrTooBig);

	// test that 3 small files were copied and 1 or 2 large files failed to copy

	// (For 8 GB disk, the 4GB file is missing)

	test(observer->iNotifyEndedSuccesses == 3);

	test(observer->iNotifyEndedFailures == 1 || observer->iNotifyEndedFailures == 2);

	// check SMALL files have been copied

	r = dir.Open(TheFs, filePathNew, KEntryAttNormal);

	test (r == KErrNone);

	r = dir.Read(entryArray);

	test (r == KErrEof);

	test(entryArray.Count() == 3);

	dir.Close();

	// then delete the new directory

	r = fileMan->Delete(filePathNew);

	test(r == KErrNone);

	delete observer;

	delete fileMan;

	}

//----------------------------------------------------------------------------------------------

//! @SYMTestCaseID      PBASE-T_BIGFILE-000A

//! @SYMTestType        CIT

//! @SYMTestCaseDesc    Check that CDirScan works correctly with a directory containing large file(s)

//! @SYMTestActions     Use CFileMan::Copy() to copy files from one directory to another

//! @SYMTestExpectedResults The files should be copied correctly

//! @SYMTestPriority    High

//! @SYMTestStatus      Implemented

//----------------------------------------------------------------------------------------------

TInt ScanDir(const TDesC& aName, CDirScan::TScanDirection aDirection, TInt aError)

	{

	TInt r;

	TFileName dirName;

	CDirScan* scanner = NULL;

	TRAP(r, scanner = CDirScan::NewL(TheFs));

	test(r == KErrNone && scanner);

	TRAP(r, scanner->SetScanDataL(aName,KEntryAttDir,ESortByName|EAscending,aDirection));

	test(r == KErrNone);

	CDir *entryList=NULL;

	TInt filesFound = 0;

	for (;;)

		{

		TRAP(r, scanner->NextL(entryList));

		test(r == aError);

		if (entryList==NULL)

			break;

		TInt count = entryList->Count();

		while (count--)

			{

			TEntry data=(*entryList)[count];

			TBuf<KMaxFileName> path=scanner->AbbreviatedPath();

			dirName = path;

			dirName.Append(data.iName);

			test.Printf(_L("    %S\n"),&dirName);

			filesFound++;

			}

		delete entryList;

		entryList=NULL;

		}

	delete scanner;

	return filesFound;

	}

GLDEF_C void CallTestsL()

//

// Do tests relative to the session path

//

	{

#if defined(__WINS__)

	if (gSessionPath[0]=='C')

		gNTFS=ETrue;

	else

		gNTFS=EFalse;

#endif

	// don't test on NTFS

	if (gNTFS)

		{

		test.Printf(_L("Skipping test: Drive is NTFS\n"));

		return;

		}

	TInt r;

	r = TheFs.CharToDrive(gDriveToTest, gDrive);

	test(r==KErrNone);

#ifdef __MOUNT_RAW_EXT__

	r=TheFs.FileSystemName(gOldFsName, gDrive);

	test(r==KErrNone);

	if (gOldFsName.CompareF(KFATName) != 0)

		{

		test.Printf(_L("Skipping test: Not a FAT drive\n"));

		return;

		}

    r = TheFs.AddExtension(KExtName);

    test(r==KErrNone || r==KErrAlreadyExists);

    r = TheFs.MountExtension(KExtName, gDrive);

    test(r==KErrNone || r==KErrAlreadyExists);

#endif

	TVolumeInfo vi;

	test((r = TheFs.Volume(vi, gDrive)) == KErrNone);

	test.Printf(_L("vi.iSize = %ld\n"), vi.iSize);

	// don't test if media sise is less than 7GB

	if (vi.iSize < TInt64(K1Gb) * TInt64(7))

		{

		test.Printf(_L("Skipping test: Drive is not big enough\n"));

		}

	if (!FilePresent(KFile2GB()))

		{

		test.Printf(_L("Skipping test: Test files not present on drive\n"));

		}

	else

		{

		gBuf = HBufC8::NewL(KBufSize);

		if (gBuf == NULL)

			User::Leave(KErrNoMemory);

		gBufPtr = gBuf->Des();

		TInt r;

		// Test that RFs::CheckDisk() succeeds with large files present

		CheckDisk();

		test.Next(_L("Scan Drive"));

		r = TheFs.ScanDrive(gSessionPath);

		test (r == KErrNone);

		// NB the 4GB file will not be present unless the disk is > 8GB (because it doesn't fit)

		if (!FilePresent(KFile4GBMinusOne()))

			gFilesInDirectory--;

		// test CDirScan

		// the number of files & directories found should be 5 or 4

		TInt filesFound = ScanDir(_L("\\"), CDirScan::EScanUpTree, KErrNone);

		test (filesFound == gFilesInDirectory+1);

		filesFound = ScanDir(_L("\\"), CDirScan::EScanDownTree, KErrNone);

		test (filesFound == gFilesInDirectory+1);

		OpenAndRead2GBMinusOne();

		Open2GB();

		Open3GB();

		// the 4GB file will not be present unless the disk is > 8GB

		if (FilePresent(KFile4GBMinusOne()))

			Open4GB();

		Extend2GBMinusOne();

		ReadDirectory();

		MoveDirectory();

		// delete the 2 smaller files to make some space

		DeleteLargeFile(KFile2GB());

		DeleteLargeFile(KFile2GBMinusOne());

		CopyDirectory();

		// delete the 3GB file and check the disk

		DeleteLargeFile(KFile3GB());

		if (FilePresent(KFile4GBMinusOne()))

			DeleteLargeFile(KFile4GBMinusOne());

		// Finally check that we can format the drive...

		Format (gDrive);

		}

#ifdef __MOUNT_RAW_EXT__

	r = TheFs.DismountExtension(KExtName, gDrive);

	test(r==KErrNone);

	r = TheFs.RemoveExtension(KExtName);

	test(r==KErrNone);

#endif

	delete gBuf; gBuf = NULL;

	}