/*

* 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:

* Test code for directory and file handling

* 

*

*/

#include <stdlib.h>

#include <stdio.h>

#include <string.h>

#include <unistd.h>

#include <sys/stat.h>

#include <sys/fcntl.h>

#include <dirent.h>

#include <errno.h>

#include "CTEST.H"	/* includes C interface to EPOC32 threads, and SpawnPosixServer */

test_Data;

char rootpath[MAXPATHLEN];

/* construct a directory tree in various ways */

#define WIDENAME {L'/', L'T', L'o', L'p', L'/', L'e', L'u', L'r', L'o', 0x20ac, 0}

/**

@SYMTestCaseID          SYSLIB-STDLIB-CT-1047

@SYMTestCaseDesc	    Tests for operations on directory 

@SYMTestPriority 	    High

@SYMTestActions  	    Tests by creating directory with invalid name,existing directory name,wide characters

                        Tests for the error code returned while creating directories.

@SYMTestExpectedResults Test must not fail

@SYMREQ                 REQ0000

*/		

void make_tree()

	{

	int err;

	char namebuf[MAXPATHLEN], namebuf2[MAXPATHLEN];

	char toobig[MAXPATHLEN+MAXPATHLEN+1];

	char *p;

	wchar_t *wp;

	wchar_t widenamebuf[MAXPATHLEN+1];

	wchar_t widename[] = WIDENAME;

	test_Next("Create Directory Tree - relative paths");

	err=mkdir("***", 0777);

	test_errno(err==-1,EINVAL);	/* bad directory name */

	err=mkdir("top", 0777);

	test(err==0);

	err=mkdir("top", 0777);

	test_errno(err==-1,EEXIST);	/* directory already exists */

	//make a dir with a wide character in the name

	err = wcstombs(namebuf, widename, MAXPATHLEN);

	test(err!=-1);

	err=mkdir(namebuf, 0777);

	test(err==0);

	err=mkdir("top/middle1/bottom1", 0777);

	test_errno(err==-1,ENOENT);	/* missing middle bit of path */

	err=mkdir("top/middle1", 0777);

	test(err==0);

	err=chdir("./top//\\/.\\.\\../top/.");

	test(err==0);

	p = getcwd(rootpath,sizeof(rootpath));	/* save name of toplevel directory */

	test(p==rootpath);

	err=chdir("middle1");

	test(err==0);

	err=chdir("bottom2");

	test_errno(err==-1,ENOENT);	/* directory doesn't exist yet */

	p = getcwd(namebuf,sizeof(namebuf));	/* prepare name for tests later */

	test(p==namebuf);

	err=mkdir("bottom1",0777);

	test(err==0);

	err=mkdir("read-only",0444);

	test(err==0);

	err=mkdir("read-only/sub-read-only",0444);

	/* test_errno(err==-1,EACCES); */

	test(err==0);	/* Omission - EPOC32 has Win32 semantics for read-only directories */

	err=chdir("../../top/middle1/bottom1");

	test(err==0);

	test_Next("Create Directory Tree - absolute paths");

	p = strcat(namebuf,"/bottom2");

	test(p==namebuf);	/* .../top/middle1/bottom2 */

	err=chdir(namebuf);

	test_errno(err==-1,ENOENT);	/* directory doesn't exist yet */

	err=mkdir(namebuf, 0777);

	test(err==0);

	err=chdir(namebuf);

	test(err==0);

	p = getcwd(namebuf,sizeof(namebuf));

	test(p==namebuf);

	err=mkdir("../../middle2", 0777);

	test(err==0);

	p = getcwd(namebuf2,sizeof(namebuf2));

	test(p==namebuf2);

	test(strcmp(namebuf,namebuf2)==0);	/* mkdir shouldn't change cwd */

	memset(toobig,'a', sizeof(toobig));

	toobig[sizeof(toobig)-1]='\0';

	err=mkdir(toobig,0777);

	test_errno(err<0,ENAMETOOLONG);

	test_Next("Test getcwd");

	//size too small

	p = getcwd(namebuf, 4);

	test_errno(0==p, ERANGE);

	//make it alloc a buffer

	p = getcwd(NULL, 300);

	test (NULL != p);

	free(p);

	//alloc a buffer then fail with a too small size

	p = getcwd(NULL, 10);

	test_errno(0==p, ERANGE);

	wp = wgetcwd(widenamebuf, MAXPATHLEN-1);

	test (NULL != wp);

	p = getcwd(namebuf2, MAXPATHLEN-1);

	test (NULL != p);

	wcstombs(namebuf, widenamebuf, MAXPATHLEN-1);

	test(strcmp(namebuf, namebuf2) == 0);

	//test realpath

	strcpy(namebuf,"bobby.dog");

	test( (0==strcmp("C:\\top\\", realpath("/top/../top/../top/./",namebuf))) || 

		  (0==strcmp("D:\\top\\", realpath("/top/../top/../top/./",namebuf))));

}

/**

   Directory tree is now

     top / middle2   

           middle1 / bottom1

                   / bottom2

 		   / read-only / sub-read-only

@SYMTestCaseID          SYSLIB-STDLIB-CT-1048

@SYMTestCaseDesc	    Tests for operations on creating files

@SYMTestPriority 	    High

@SYMTestActions  	    Tests by opening files which does not exists,check for closing a file twice

                        Tests for the error code returned while creating files

@SYMTestExpectedResults Test must not fail

@SYMREQ                 REQ0000

*/		

void create_files()

	{

	int err;

	int fd;

	char namebuf[MAXPATHLEN],*p;

	test_Next("Creating Files - relative paths");

	err=chdir(rootpath);

	test(err==0);

	fd = open("topfile",O_RDWR+O_APPEND,0777);

	test_errno(fd<0,ENOENT);	/* doesn't exist */

	fd = open("topfile",O_RDWR+O_CREAT,0777);

	test(fd>=0);

	err=close(fd);

	test(err==0);

	err=close(fd);

	test_errno(err<0,EBADF);	/* can't close it twice */

	fd = open("topfile",O_RDWR+O_APPEND,0777);

	test(fd>=0);

	err=close(fd);

	test(err==0);

	fd = open("topfile",O_RDWR+O_CREAT+O_EXCL,0777);

	test_errno(fd<0,EEXIST);	/* already exists */

	fd = open("middle1/bottom2/file",O_RDONLY+O_CREAT,0444);

	test(fd>=0);

	err=close(fd);

	test(err==0);

	fd = open("middle1/bottom2/file",O_RDWR+O_APPEND,0777);

	/* test_errno(fd<0,EACCES); */

	test(fd>=0);	/* Omission - the original O_CREAT ignores the 0444 permissions */

	if (fd>=0)

		{

		err=close(fd);

		test(err==0);

		}

	err=chmod("middle1/bottom2/file",0444);

	test(err==0);

	fd = open("middle1/bottom2/file",O_RDWR+O_APPEND,0777);

	test_errno(fd<0,EACCES);	/* not writeable */

	fd = open("middle2",O_RDWR+O_CREAT,0777);

	/* test_errno(fd<0,EISDIR); */

	test_errno(fd<0,EACCES);	/* Omission - we don't do EISDIR */

	test_Next("Creating Files - absolute paths");

	err=chdir("middle1/bottom1");

	test(err==0);

	p = getcwd(namebuf,sizeof(namebuf));	/* prepare name for tests later */

	test(p==namebuf);

	p = strcat(namebuf,"absfile");

	test(p==namebuf);

	fd = open(namebuf,O_RDWR+O_CREAT,0777);

	test(fd>=0);

	err=close(fd);

	test(err==0);

	fd = open("../read-only/file",O_RDWR+O_CREAT,0444);

	/* test_errno(fd<0,EACCES); */

	test(fd>=0);	/* Omission - EPOC32 has Win32 semantics for read-only directories */

	if (fd>=0)

		{

		err=close(fd);

		test(err==0);

		}

	}

/**

   Directory tree is now

    top / topfile

           middle2 /   

           middle1 / bottom1 / absfile

                   / bottom2 / file                -- read-only

 		   / read-only / sub-read-only /

                                 file

@SYMTestCaseID          SYSLIB-STDLIB-CT-1049

@SYMTestCaseDesc	    Tests for renaming operations 

@SYMTestPriority 	    High

@SYMTestActions  	    Tests by renaming files.Tests for the error code returned while renaming files

@SYMTestExpectedResults Test must not fail

@SYMREQ                 REQ0000

*/		

void renaming()

	{

	int err;

	test_Next("Renaming");

	err=chdir(rootpath);

	test(err==0);

	err=rename("middle1","middle2");

	test_errno(err<0,EEXIST);

	err=rename("middle1/bottom1/absfile","middle2/absfile");

	test(err==0);

	err=rename("middle2/absfile","middle1/bottom1/absfile");

	test(err==0);

	err=rename("middle1/bottom1/absfile","middle2/nonsuch/newname");

	test_errno(err<0,ENOENT);

	err=rename("middle1","middle1/bottom1/subdirectory_of_self");

	test_errno(err<0,EACCES);

	err=rename("middle1","newname");

	test(err==0);

	err=rename("newname/bottom2/file","middle2/file");

	test(err==0);

	err=rename("newname","middle1");

	test(err==0);

	err=rename("middle2/file","middle1/bottom2/file");

	test(err==0);

	err=rename("no such file","valid new name");

	test_errno(err<0,ENOENT);

	err=rename("no such file","topfile");

	test_errno(err<0,ENOENT);

	err=rename(".","../different top");

	/* test_errno(err<0,EACCES);	-- can't change "." */

	test(err==0);	/* STDLIB resolves "." to full path, so this works */

	err=rename("../different top",rootpath);

	test(err==0);

	}

/**

   Directory tree is now

     top / topfile

           middle2 /   

           middle1 / bottom1 / absfile

                   / bottom2 / file                -- read-only

 		   / read-only / sub-read-only /

                                 file

@SYMTestCaseID          SYSLIB-STDLIB-CT-1050

@SYMTestCaseDesc	    Tests for enumeration on directories 

@SYMTestPriority 	    High

@SYMTestActions  	    Tests by opening directories

@SYMTestExpectedResults Test must not fail

@SYMREQ                 REQ0000

*/		

void directory()

	{

	int err, count, i, j, fd;

	DIR *dp;

	struct dirent *ep;

	char name[MAXPATHLEN+1];

	off_t pos;

	test_Next("Enumerating Directories");

	err=chdir(rootpath);

	test(err==0);

	dp=opendir("topfile");

	/* test_errno(dp==0,ENOTDIR); -- not convinced about this anyway */

	test_errno(dp==0,ENOENT);

	dp=opendir("no such file");

	test_errno(dp==0,ENOENT);

	//test something sensible happens if someone uses a WDIR inplace of a DIR

	{

		WDIR *wp = wopendir((wchar_t*)L".");

		test(wp!=0);

		// Test wants a WDIR passed but won't compile under CW.

		// Force the compile by casting. The function will still get a WDIR.

		// DIR inherits from WDIR.

		ep=readdir((DIR*)wp);

		test_errno(ep==0,EINVAL);

		wclosedir(wp);

	}

	dp=opendir(".");

	test(dp!=0);

	count=0;

	do

		{

		ep=readdir(dp);

		if (ep && strcmp(ep->d_name,".")!=0 && strcmp(ep->d_name,"..")!=0)

			count++;

		}

	while (ep!=0);

	test(count==4);

	for (i=0; i<4; i++)

		{

		rewinddir(dp);

		for (j=0; j<=i; j++)

			{

			ep=readdir(dp);

			test(ep!=0);

			}

		strcpy(name,ep->d_name);

		rewinddir(dp);

		for (j=0; j<=i; j++)

			{

			ep=readdir(dp);

			test(ep!=0);

			}

		test(strcmp(name,ep->d_name)==0);

		}

	for (i=0; i<4; i++)

		{

		rewinddir(dp);

		pos=telldir(dp);

		for (j=0; j<=i; j++)

			{

			pos=telldir(dp);

			ep=readdir(dp);

			test(ep!=0);

			}

		strcpy(name,ep->d_name);

		rewinddir(dp);

		seekdir(dp, pos);

		ep=readdir(dp);

		test(ep!=0);

		test(strcmp(name,ep->d_name)==0);

		}

	err=closedir(dp);

	test(err==0);

	dp=opendir("middle2");

	test(dp!=0);

	count=0;

	do

		{

		ep=readdir(dp);

		if (ep && strcmp(ep->d_name,".")!=0 && strcmp(ep->d_name,"..")!=0)

			count++;

		}

	while (ep!=0);

	test(count==0);	/* empty directory */

	rewinddir(dp);

	fd = open("middle2/extrafile",O_RDWR+O_CREAT,0777);

	test(fd>=0);

	err=close(fd);

	test(err==0);

	count=0;

	do

		{

		ep=readdir(dp);

		if (ep && strcmp(ep->d_name,".")!=0 && strcmp(ep->d_name,"..")!=0)

			count++;

		}

	while (ep!=0);

	test(count==0);	/* shouldn't have noticed the change */

	rewinddir(dp);	/* and spot the new file */

	count=0;

	do

		{

		ep=readdir(dp);

		if (ep && strcmp(ep->d_name,".")!=0 && strcmp(ep->d_name,"..")!=0)

			count++;

		}

	while (ep!=0);

	test(count==1);

	closedir(dp);

	dp=opendir("/");

	test(dp!=0);

	count=0;

	do

		{

		ep=readdir(dp);

		if (ep && strcmp(ep->d_name,".")!=0 && strcmp(ep->d_name,"..")!=0)

			count++;

		}

	while (ep!=0);

	test(count>0);

	closedir(dp);

	}

/**

   Directory tree is now

     top / topfile

            middle2 / extrafile  

           middle1 / bottom1 / absfile

                   / bottom2 / file                -- read-only

 		   / read-only / sub-read-only /

                                 file