rostests/winetests/msvcrt/file.c

   1 /*
   2  * Unit test suite for file functions
   3  *
   4  * Copyright 2002 Bill Currie
   5  * Copyright 2005 Paul Rupe
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21
  22 #include "wine/test.h"
  23 #include <stdarg.h>
  24 #include <stdlib.h>
  25 #include <stdio.h>
  26 #include <fcntl.h>
  27 #include <sys/stat.h>
  28 #include <io.h>
  29 #include <windef.h>
  30 #include <winbase.h>
  31 #include <winnls.h>
  32 #include <process.h>
  33 #include <errno.h>
  34
  35 static void test_fdopen( void )
  36 {
  37     static const char buffer[] = {0,1,2,3,4,5,6,7,8,9};
  38     char ibuf[10];
  39     int fd;
  40     FILE *file;
  41
  42     fd = open ("fdopen.tst", O_WRONLY | O_CREAT | O_BINARY, _S_IREAD |_S_IWRITE);
  43     write (fd, buffer, sizeof (buffer));
  44     close (fd);
  45
  46     fd = open ("fdopen.tst", O_RDONLY | O_BINARY);
  47     lseek (fd, 5, SEEK_SET);
  48     file = fdopen (fd, "rb");
  49     ok (fread (ibuf, 1, sizeof (buffer), file) == 5, "read wrong byte count\n");
  50     ok (memcmp (ibuf, buffer + 5, 5) == 0, "read wrong bytes\n");
  51     fclose (file);
  52     unlink ("fdopen.tst");
  53 }
  54
  55 static void test_fileops( void )
  56 {
  57     static const char outbuffer[] = "0,1,2,3,4,5,6,7,8,9";
  58     char buffer[256];
  59     WCHAR wbuffer[256];
  60     int fd;
  61     FILE *file;
  62     fpos_t pos;
  63     int i, c;
  64
  65     fd = open ("fdopen.tst", O_WRONLY | O_CREAT | O_BINARY, _S_IREAD |_S_IWRITE);
  66     write (fd, outbuffer, sizeof (outbuffer));
  67     close (fd);
  68
  69     fd = open ("fdopen.tst", O_RDONLY | O_BINARY);
  70     file = fdopen (fd, "rb");
  71     ok(strlen(outbuffer) == (sizeof(outbuffer)-1),"strlen/sizeof error\n");
  72     ok(fgets(buffer,sizeof(buffer),file) !=0,"fgets failed unexpected\n");
  73     ok(fgets(buffer,sizeof(buffer),file) ==0,"fgets didn't signal EOF\n");
  74     ok(feof(file) !=0,"feof doesn't signal EOF\n");
  75     rewind(file);
  76     ok(fgets(buffer,strlen(outbuffer),file) !=0,"fgets failed unexpected\n");
  77     ok(lstrlenA(buffer) == lstrlenA(outbuffer) -1,"fgets didn't read right size\n");
  78     ok(fgets(buffer,sizeof(outbuffer),file) !=0,"fgets failed unexpected\n");
  79     ok(strlen(buffer) == 1,"fgets dropped chars\n");
  80     ok(buffer[0] == outbuffer[strlen(outbuffer)-1],"fgets exchanged chars\n");
  81
  82     rewind(file);
  83     for (i = 0, c = EOF; i < sizeof(outbuffer); i++)
  84     {
  85         ok((c = fgetc(file)) == outbuffer[i], "fgetc returned wrong data\n");
  86     }
  87     ok((c = fgetc(file)) == EOF, "getc did not return EOF\n");
  88     ok(feof(file), "feof did not return EOF\n");
  89     ok(ungetc(c, file) == EOF, "ungetc(EOF) did not return EOF\n");
  90     ok(feof(file), "feof after ungetc(EOF) did not return EOF\n");
  91     ok((c = fgetc(file)) == EOF, "getc did not return EOF\n");
  92     c = outbuffer[sizeof(outbuffer) - 1];
  93     ok(ungetc(c, file) == c, "ungetc did not return its input\n");
  94     ok(!feof(file), "feof after ungetc returned EOF\n");
  95     ok((c = fgetc(file)) != EOF, "getc after ungetc returned EOF\n");
  96     ok(c == outbuffer[sizeof(outbuffer) - 1],
  97        "getc did not return ungetc'd data\n");
  98     ok(!feof(file), "feof after getc returned EOF prematurely\n");
  99     ok((c = fgetc(file)) == EOF, "getc did not return EOF\n");
 100     ok(feof(file), "feof after getc did not return EOF\n");
 101
 102     rewind(file);
 103     ok(fgetpos(file,&pos) == 0, "fgetpos failed unexpected\n");
 104     ok(pos == 0, "Unexpected result of fgetpos 0x%Lx\n", pos);
 105     pos = (ULONGLONG)sizeof (outbuffer);
 106     ok(fsetpos(file, &pos) == 0, "fsetpos failed unexpected\n");
 107     ok(fgetpos(file,&pos) == 0, "fgetpos failed unexpected\n");
 108     ok(pos == (ULONGLONG)sizeof (outbuffer), "Unexpected result of fgetpos 0x%Lx\n", pos);
 109
 110     fclose (file);
 111     fd = open ("fdopen.tst", O_RDONLY | O_TEXT);
 112     file = fdopen (fd, "rt"); /* open in TEXT mode */
 113     ok(fgetws(wbuffer,sizeof(wbuffer),file) !=0,"fgetws failed unexpected\n");
 114     ok(fgetws(wbuffer,sizeof(wbuffer),file) ==0,"fgetws didn't signal EOF\n");
 115     ok(feof(file) !=0,"feof doesn't signal EOF\n");
 116     rewind(file);
 117     ok(fgetws(wbuffer,strlen(outbuffer),file) !=0,"fgetws failed unexpected\n");
 118     ok(lstrlenW(wbuffer) == (lstrlenA(outbuffer) -1),"fgetws didn't read right size\n");
 119     ok(fgetws(wbuffer,sizeof(outbuffer),file) !=0,"fgets failed unexpected\n");
 120     ok(lstrlenW(wbuffer) == 1,"fgets dropped chars\n");
 121     fclose (file);
 122
 123     file = fopen("fdopen.tst", "rb");
 124     ok( file != NULL, "fopen failed\n");
 125     /* sizeof(buffer) > content of file */
 126     ok(fread(buffer, sizeof(buffer), 1, file) == 0, "fread test failed\n");
 127     /* feof should be set now */
 128     ok(feof(file), "feof after fread failed\n");
 129     fclose (file);
 130
 131     unlink ("fdopen.tst");
 132 }
 133
 134 static WCHAR* AtoW( char* p )
 135 {
 136     WCHAR* buffer;
 137     DWORD len = MultiByteToWideChar( CP_ACP, 0, p, -1, NULL, 0 );
 138     buffer = malloc( len * sizeof(WCHAR) );
 139     MultiByteToWideChar( CP_ACP, 0, p, -1, buffer, len );
 140     return buffer;
 141 }
 142
 143 static void test_fgetwc( void )
 144 {
 145 #define LLEN 512
 146
 147   char* tempf;
 148   FILE *tempfh;
 149   static const char mytext[]= "This is test_fgetwc\n";
 150   WCHAR wtextW[LLEN+1];
 151   WCHAR *mytextW = NULL, *aptr, *wptr;
 152   BOOL diff_found = FALSE;
 153   unsigned int i;
 154
 155   tempf=_tempnam(".","wne");
 156   tempfh = fopen(tempf,"wt"); /* open in TEXT mode */
 157   fputs(mytext,tempfh);
 158   fclose(tempfh);
 159   tempfh = fopen(tempf,"rt");
 160   fgetws(wtextW,LLEN,tempfh);
 161   mytextW = AtoW ((char*)mytext);
 162   aptr = mytextW;
 163   wptr = wtextW;
 164
 165   for (i=0; i<strlen(mytext); i++, aptr++, wptr++)
 166     {
 167       diff_found |= (*aptr != *wptr);
 168     }
 169   ok(!(diff_found), "fgetwc difference found in TEXT mode\n");
 170   if(mytextW) free (mytextW);
 171   fclose(tempfh);
 172   unlink(tempf);
 173 }
 174
 175 static void test_file_put_get( void )
 176 {
 177   char* tempf;
 178   FILE *tempfh;
 179   static const char mytext[]=  "This is a test_file_put_get\n";
 180   static const char dostext[]= "This is a test_file_put_get\r\n";
 181   char btext[LLEN];
 182   WCHAR wtextW[LLEN+1];
 183   WCHAR *mytextW = NULL, *aptr, *wptr;
 184   BOOL diff_found = FALSE;
 185   unsigned int i;
 186
 187   tempf=_tempnam(".","wne");
 188   tempfh = fopen(tempf,"wt"); /* open in TEXT mode */
 189   fputs(mytext,tempfh);
 190   fclose(tempfh);
 191   tempfh = fopen(tempf,"rb"); /* open in TEXT mode */
 192   fgets(btext,LLEN,tempfh);
 193   ok( strlen(mytext) + 1 == strlen(btext),"TEXT/BINARY mode not handled for write\n");
 194   ok( btext[strlen(mytext)-1] == '\r', "CR not written\n");
 195   fclose(tempfh);
 196   tempfh = fopen(tempf,"wb"); /* open in BINARY mode */
 197   fputs(dostext,tempfh);
 198   fclose(tempfh);
 199   tempfh = fopen(tempf,"rt"); /* open in TEXT mode */
 200   fgets(btext,LLEN,tempfh);
 201   ok(strcmp(btext, mytext) == 0,"_O_TEXT read doesn't strip CR\n");
 202   fclose(tempfh);
 203   tempfh = fopen(tempf,"rb"); /* open in TEXT mode */
 204   fgets(btext,LLEN,tempfh);
 205   ok(strcmp(btext, dostext) == 0,"_O_BINARY read doesn't preserve CR\n");
 206
 207   fclose(tempfh);
 208   tempfh = fopen(tempf,"rt"); /* open in TEXT mode */
 209   fgetws(wtextW,LLEN,tempfh);
 210   mytextW = AtoW ((char*)mytext);
 211   aptr = mytextW;
 212   wptr = wtextW;
 213
 214   for (i=0; i<strlen(mytext); i++, aptr++, wptr++)
 215     {
 216       diff_found |= (*aptr != *wptr);
 217     }
 218   ok(!(diff_found), "fgetwc doesn't strip CR in TEXT mode\n");
 219   if(mytextW) free (mytextW);
 220   fclose(tempfh);
 221   unlink(tempf);
 222 }
 223
 224 static void test_file_write_read( void )
 225 {
 226   char* tempf;
 227   int tempfd;
 228   static const char mytext[]=  "This is test_file_write_read\nsecond line\n";
 229   static const char dostext[]= "This is test_file_write_read\r\nsecond line\r\n";
 230   char btext[LLEN];
 231   int ret;
 232
 233   tempf=_tempnam(".","wne");
 234   tempfd = _open(tempf,_O_CREAT|_O_TRUNC|_O_TEXT|_O_RDWR,
 235                      _S_IREAD | _S_IWRITE);
 236   ok( tempfd != -1,
 237      "Can't open '%s': %d\n", tempf, errno); /* open in TEXT mode */
 238   ok(_write(tempfd,mytext,strlen(mytext)) == lstrlenA(mytext),
 239      "_write _O_TEXT bad return value\n");
 240   _close(tempfd);
 241   tempfd = _open(tempf,_O_RDONLY|_O_BINARY,0); /* open in BINARY mode */
 242   ok(_read(tempfd,btext,LLEN) == lstrlenA(dostext),
 243      "_read _O_BINARY got bad length\n");
 244   ok( memcmp(dostext,btext,strlen(dostext)) == 0,
 245       "problems with _O_TEXT _write / _O_BINARY _read\n");
 246   ok( btext[strlen(dostext)-2] == '\r', "CR not written or read\n");
 247   _close(tempfd);
 248   tempfd = _open(tempf,_O_RDONLY|_O_TEXT); /* open in TEXT mode */
 249   ok(_read(tempfd,btext,LLEN) == lstrlenA(mytext),
 250      "_read _O_TEXT got bad length\n");
 251   ok( memcmp(mytext,btext,strlen(mytext)) == 0,
 252       "problems with _O_TEXT _write / _read\n");
 253   _close(tempfd);
 254
 255   memset(btext, 0, LLEN);
 256   tempfd = _open(tempf,_O_APPEND|_O_RDWR); /* open for APPEND in default mode */
 257   ok(tell(tempfd) == 0, "bad position %lu expecting 0\n", tell(tempfd));
 258   ok(_read(tempfd,btext,LLEN) == lstrlenA(mytext), "_read _O_APPEND got bad length\n");
 259   ok( memcmp(mytext,btext,strlen(mytext)) == 0, "problems with _O_APPEND _read\n");
 260   _close(tempfd);
 261
 262   /* Test reading only \n or \r */
 263   tempfd = _open(tempf,_O_RDONLY|_O_TEXT); /* open in TEXT mode */
 264   _lseek(tempfd, -1, FILE_END);
 265   ret = _read(tempfd,btext,LLEN);
 266   ok(ret == 1, "_read expected 1 got bad length: %d\n", ret);
 267   _lseek(tempfd, -2, FILE_END);
 268   ret = _read(tempfd,btext,LLEN);
 269   ok(ret == 1 && *btext == '\n', "_read expected '\\n' got bad length: %d\n", ret);
 270   _lseek(tempfd, -3, FILE_END);
 271   ret = _read(tempfd,btext,2);
 272   todo_wine ok(ret == 1 && *btext == 'e', "_read expected 'e' got \"%.*s\" bad length: %d\n", ret, btext, ret);
 273   todo_wine ok(tell(tempfd) == 42, "bad position %lu expecting 42\n", tell(tempfd));
 274   _close(tempfd);
 275
 276   ret = unlink(tempf);
 277   ok( ret == 0 ,"Can't unlink '%s': %d\n", tempf, errno);
 278
 279   tempf=_tempnam(".","wne");
 280   tempfd = _open(tempf,_O_CREAT|_O_TRUNC|_O_BINARY|_O_RDWR,0);
 281   ok( tempfd != -1,
 282      "Can't open '%s': %d\n", tempf, errno); /* open in BINARY mode */
 283   ok(_write(tempfd,dostext,strlen(dostext)) == lstrlenA(dostext),
 284      "_write _O_BINARY bad return value\n");
 285   _close(tempfd);
 286   tempfd = _open(tempf,_O_RDONLY|_O_BINARY,0); /* open in BINARY mode */
 287   ok(_read(tempfd,btext,LLEN) == lstrlenA(dostext),
 288      "_read _O_BINARY got bad length\n");
 289   ok( memcmp(dostext,btext,strlen(dostext)) == 0,
 290       "problems with _O_BINARY _write / _read\n");
 291   ok( btext[strlen(dostext)-2] == '\r', "CR not written or read\n");
 292   _close(tempfd);
 293   tempfd = _open(tempf,_O_RDONLY|_O_TEXT); /* open in TEXT mode */
 294   ok(_read(tempfd,btext,LLEN) == lstrlenA(mytext),
 295      "_read _O_TEXT got bad length\n");
 296   ok( memcmp(mytext,btext,strlen(mytext)) == 0,
 297       "problems with _O_BINARY _write / _O_TEXT _read\n");
 298   _close(tempfd);
 299
 300    ret =_chmod (tempf, _S_IREAD | _S_IWRITE);
 301   ok( ret == 0,
 302      "Can't chmod '%s' to read-write: %d\n", tempf, errno);
 303   ret = unlink(tempf);
 304   ok( ret == 0 ,"Can't unlink '%s': %d\n", tempf, errno);
 305 }
 306
 307 static void test_file_inherit_child(const char* fd_s)
 308 {
 309     int fd = atoi(fd_s);
 310     char buffer[32];
 311     int ret;
 312
 313     ret =write(fd, "Success", 8);
 314     ok( ret == 8, "Couldn't write in child process on %d (%s)\n", fd, strerror(errno));
 315     lseek(fd, 0, SEEK_SET);
 316     ok(read(fd, buffer, sizeof (buffer)) == 8, "Couldn't read back the data\n");
 317     ok(memcmp(buffer, "Success", 8) == 0, "Couldn't read back the data\n");
 318 }
 319
 320 static void test_file_inherit_child_no(const char* fd_s)
 321 {
 322     int fd = atoi(fd_s);
 323     int ret;
 324
 325     ret = write(fd, "Success", 8);
 326     ok( ret == -1 && errno == EBADF,
 327        "Wrong write result in child process on %d (%s)\n", fd, strerror(errno));
 328 }
 329
 330 static void test_file_inherit( const char* selfname )
 331 {
 332     int                 fd;
 333     const char*         arg_v[5];
 334     char                buffer[16];
 335
 336     fd = open ("fdopen.tst", O_CREAT | O_RDWR | O_BINARY, _S_IREAD |_S_IWRITE);
 337     ok(fd != -1, "Couldn't create test file\n");
 338     arg_v[0] = selfname;
 339     arg_v[1] = "tests/file.c";
 340     arg_v[2] = buffer; sprintf(buffer, "%d", fd);
 341     arg_v[3] = 0;
 342     _spawnvp(_P_WAIT, selfname, arg_v);
 343     ok(tell(fd) == 8, "bad position %lu expecting 8\n", tell(fd));
 344     lseek(fd, 0, SEEK_SET);
 345     ok(read(fd, buffer, sizeof (buffer)) == 8 && memcmp(buffer, "Success", 8) == 0, "Couldn't read back the data\n");
 346     close (fd);
 347     ok(unlink("fdopen.tst") == 0, "Couldn't unlink\n");
 348
 349     fd = open ("fdopen.tst", O_CREAT | O_RDWR | O_BINARY | O_NOINHERIT, _S_IREAD |_S_IWRITE);
 350     ok(fd != -1, "Couldn't create test file\n");
 351     arg_v[0] = selfname;
 352     arg_v[1] = "tests/file.c";
 353     arg_v[2] = buffer; sprintf(buffer, "%d", fd);
 354     arg_v[3] = buffer;
 355     arg_v[4] = 0;
 356     _spawnvp(_P_WAIT, selfname, arg_v);
 357     ok(tell(fd) == 0, "bad position %lu expecting 0\n", tell(fd));
 358     ok(read(fd, buffer, sizeof (buffer)) == 0, "Found unexpected data (%s)\n", buffer);
 359     close (fd);
 360     ok(unlink("fdopen.tst") == 0, "Couldn't unlink\n");
 361 }
 362
 363 static void test_tmpnam( void )
 364 {
 365   char name[MAX_PATH] = "abc";
 366   char *res;
 367
 368   res = tmpnam(NULL);
 369   ok(res != NULL, "tmpnam returned NULL\n");
 370   ok(res[0] == '\\', "first character is not a backslash\n");
 371   ok(strchr(res+1, '\\') == 0, "file not in the root directory\n");
 372   ok(res[strlen(res)-1] == '.', "first call - last character is not a dot\n");
 373
 374   res = tmpnam(name);
 375   ok(res != NULL, "tmpnam returned NULL\n");
 376   ok(res == name, "supplied buffer was not used\n");
 377   ok(res[0] == '\\', "first character is not a backslash\n");
 378   ok(strchr(res+1, '\\') == 0, "file not in the root directory\n");
 379   ok(res[strlen(res)-1] != '.', "second call - last character is a dot\n");
 380 }
 381
 382 static void test_chsize( void )
 383 {
 384     int fd;
 385     long cur, pos, count;
 386     char temptext[] = "012345678";
 387     char *tempfile = _tempnam( ".", "tst" );
 388
 389     ok( tempfile != NULL, "Couldn't create test file: %s\n", tempfile );
 390
 391     fd = _open( tempfile, _O_CREAT|_O_TRUNC|_O_RDWR, _S_IREAD|_S_IWRITE );
 392     ok( fd > 0, "Couldn't open test file\n" );
 393
 394     count = _write( fd, temptext, sizeof(temptext) );
 395     ok( count > 0, "Couldn't write to test file\n" );
 396
 397     /* get current file pointer */
 398     cur = _lseek( fd, 0, SEEK_CUR );
 399
 400     /* make the file smaller */
 401     ok( _chsize( fd, sizeof(temptext) / 2 ) == 0, "_chsize() failed\n" );
 402
 403     pos = _lseek( fd, 0, SEEK_CUR );
 404     ok( cur == pos, "File pointer changed from: %ld to: %ld\n", cur, pos );
 405     ok( _filelength( fd ) == sizeof(temptext) / 2, "Wrong file size\n" );
 406
 407     /* enlarge the file */
 408     ok( _chsize( fd, sizeof(temptext) * 2 ) == 0, "_chsize() failed\n" );
 409
 410     pos = _lseek( fd, 0, SEEK_CUR );
 411     ok( cur == pos, "File pointer changed from: %ld to: %ld\n", cur, pos );
 412     ok( _filelength( fd ) == sizeof(temptext) * 2, "Wrong file size\n" );
 413
 414     _close( fd );
 415     _unlink( tempfile );
 416 }
 417
 418 static void test_fopen_fclose_fcloseall( void )
 419 {
 420     char fname1[] = "empty1";
 421     char fname2[] = "empty2";
 422     char fname3[] = "empty3";
 423     FILE *stream1, *stream2, *stream3, *stream4;
 424     int ret, numclosed;
 425
 426     /* testing fopen() */
 427     stream1 = fopen(fname1, "w+");
 428     ok(stream1 != NULL, "The file '%s' was not opened\n", fname1);
 429     stream2 = fopen(fname2, "w ");
 430     ok(stream2 != NULL, "The file '%s' was not opened\n", fname2 );
 431     _unlink(fname3);
 432     stream3 = fopen(fname3, "r");
 433     ok(stream3 == NULL, "The file '%s' shouldn't exist before\n", fname3 );
 434     stream3 = fopen(fname3, "w+");
 435     ok(stream3 != NULL, "The file '%s' should be opened now\n", fname3 );
 436     errno = 0xfaceabad;
 437     stream4 = fopen("", "w+");
 438     ok(stream4 == NULL && errno == ENOENT,
 439        "filename is empty, errno = %d (expected 2)\n", errno);
 440     errno = 0xfaceabad;
 441     stream4 = fopen(NULL, "w+");
 442     ok(stream4 == NULL && (errno == EINVAL || errno == ENOENT),
 443        "filename is NULL, errno = %d (expected 2 or 22)\n", errno);
 444
 445     /* testing fclose() */
 446     ret = fclose(stream2);
 447     ok(ret == 0, "The file '%s' was not closed\n", fname2);
 448     ret = fclose(stream3);
 449     ok(ret == 0, "The file '%s' was not closed\n", fname3);
 450     ret = fclose(stream2);
 451     ok(ret == EOF, "Closing file '%s' returned %d\n", fname2, ret);
 452     ret = fclose(stream3);
 453     ok(ret == EOF, "Closing file '%s' returned %d\n", fname3, ret);
 454
 455     /* testing fcloseall() */
 456     numclosed = _fcloseall();
 457     /* fname1 should be closed here */
 458     ok(numclosed == 1, "Number of files closed by fcloseall(): %u\n", numclosed);
 459     numclosed = _fcloseall();
 460     ok(numclosed == 0, "Number of files closed by fcloseall(): %u\n", numclosed);
 461
 462     ok(_unlink(fname1) == 0, "Couldn't unlink file named '%s'\n", fname1);
 463     ok(_unlink(fname2) == 0, "Couldn't unlink file named '%s'\n", fname2);
 464     ok(_unlink(fname3) == 0, "Couldn't unlink file named '%s'\n", fname3);
 465 }
 466
 467 START_TEST(file)
 468 {
 469     int arg_c;
 470     char** arg_v;
 471
 472     arg_c = winetest_get_mainargs( &arg_v );
 473
 474     /* testing low-level I/O */
 475     if (arg_c >= 3)
 476     {
 477         if (arg_c == 3) test_file_inherit_child(arg_v[2]);
 478         else test_file_inherit_child_no(arg_v[2]);
 479         return;
 480     }
 481     test_file_inherit(arg_v[0]);
 482     test_file_write_read();
 483     test_chsize();
 484
 485     /* testing stream I/O */
 486     test_fdopen();
 487     test_fopen_fclose_fcloseall();
 488     test_fileops();
 489     test_fgetwc();
 490     test_file_put_get();
 491     test_tmpnam();
 492 }