Function random_tests

cups/testfile.c:357–532

 */

static int				/* O - Status */
random_tests(void)
{
  int		status,			/* Status of tests */
		pass,			/* Current pass */
		count,			/* Number of records read */
		record,			/* Current record */
		num_records;		/* Number of records */
  off_t		pos;			/* Position in file */
  ssize_t	expected;		/* Expected position in file */
  cups_file_t	*fp;			/* File */
  char		buffer[512];		/* Data buffer */


 /*
  * Run 4 passes, each time appending to a data file and then reopening the
  * file for reading to validate random records in the file.
  */

  for (status = 0, pass = 0; pass < 4; pass ++)
  {
   /*
    * cupsFileOpen(append)
    */

    printf("\ncupsFileOpen(append %d): ", pass);

    if ((fp = cupsFileOpen("testfile.dat", "a")) == NULL)
    {
      printf("FAIL (%s)\n", strerror(errno));
      status ++;
      break;
    }
    else
      puts("PASS");

   /*
    * cupsFileTell()
    */

    expected = 256 * (ssize_t)sizeof(buffer) * pass;

    fputs("cupsFileTell(): ", stdout);
    if ((pos = cupsFileTell(fp)) != (off_t)expected)
    {
      printf("FAIL (" CUPS_LLFMT " instead of " CUPS_LLFMT ")\n",
	     CUPS_LLCAST pos, CUPS_LLCAST expected);
      status ++;
      break;
    }
    else
      puts("PASS");

   /*
    * cupsFileWrite()
    */

    fputs("cupsFileWrite(256 512-byte records): ", stdout);