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Member "gnuastro-0.8/bootstrapped/tests/test-getdelim.c" (28 Dec 2018, 2477 Bytes) of package /linux/privat/gnuastro-0.8.tar.lz:


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    1 /* Test of getdelim() function.
    2    Copyright (C) 2007-2018 Free Software Foundation, Inc.
    3 
    4    This program is free software; you can redistribute it and/or modify
    5    it under the terms of the GNU General Public License as published by
    6    the Free Software Foundation; either version 3, or (at your option)
    7    any later version.
    8 
    9    This program is distributed in the hope that it will be useful,
   10    but WITHOUT ANY WARRANTY; without even the implied warranty of
   11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   12    GNU General Public License for more details.
   13 
   14    You should have received a copy of the GNU General Public License
   15    along with this program; if not, see <https://www.gnu.org/licenses/>.  */
   16 
   17 /* Written by Eric Blake <ebb9@byu.net>, 2007.  */
   18 
   19 #include <config.h>
   20 
   21 #include <stdio.h>
   22 
   23 #include "signature.h"
   24 SIGNATURE_CHECK (getdelim, ssize_t, (char **, size_t *, int, FILE *));
   25 
   26 #include <stdlib.h>
   27 #include <string.h>
   28 
   29 #include "macros.h"
   30 
   31 int
   32 main (void)
   33 {
   34   FILE *f;
   35   char *line;
   36   size_t len;
   37   ssize_t result;
   38 
   39   /* Create test file.  */
   40   f = fopen ("test-getdelim.txt", "wb");
   41   if (!f || fwrite ("anAnbcnd\0f", 1, 10, f) != 10 || fclose (f) != 0)
   42     {
   43       fputs ("Failed to create sample file.\n", stderr);
   44       remove ("test-getdelim.txt");
   45       return 1;
   46     }
   47   f = fopen ("test-getdelim.txt", "rb");
   48   if (!f)
   49     {
   50       fputs ("Failed to reopen sample file.\n", stderr);
   51       remove ("test-getdelim.txt");
   52       return 1;
   53     }
   54 
   55   /* Test initial allocation, which must include trailing NUL.  */
   56   line = NULL;
   57   len = 0;
   58   result = getdelim (&line, &len, 'n', f);
   59   ASSERT (result == 2);
   60   ASSERT (strcmp (line, "an") == 0);
   61   ASSERT (2 < len);
   62   free (line);
   63 
   64   /* Test initial allocation again, with line = NULL and len != 0.  */
   65   line = NULL;
   66   len = (size_t)(~0) / 4;
   67   result = getdelim (&line, &len, 'n', f);
   68   ASSERT (result == 2);
   69   ASSERT (strcmp (line, "An") == 0);
   70   ASSERT (2 < len);
   71   free (line);
   72 
   73   /* Test growth of buffer.  */
   74   line = malloc (1);
   75   len = 1;
   76   result = getdelim (&line, &len, 'n', f);
   77   ASSERT (result == 3);
   78   ASSERT (strcmp (line, "bcn") == 0);
   79   ASSERT (3 < len);
   80 
   81   /* Test embedded NULs and EOF behavior.  */
   82   result = getdelim (&line, &len, 'n', f);
   83   ASSERT (result == 3);
   84   ASSERT (memcmp (line, "d\0f", 4) == 0);
   85   ASSERT (3 < len);
   86 
   87   result = getdelim (&line, &len, 'n', f);
   88   ASSERT (result == -1);
   89 
   90   free (line);
   91   fclose (f);
   92   remove ("test-getdelim.txt");
   93   return 0;
   94 }