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/* Test of getdelim() function.
Copyright (C) 2007-2008 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
/* Written by Eric Blake <ebb9@byu.net>, 2007. */
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define ASSERT(expr) \
do \
{ \
if (!(expr)) \
{ \
fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
fflush (stderr); \
abort (); \
} \
} \
while (0)
int
main (int argc, char **argv)
{
FILE *f;
char *line = NULL;
size_t len = 0;
ssize_t result;
/* Create test file. */
f = fopen ("test-getdelim.txt", "wb");
if (!f || fwrite ("anbcnd\0f", 1, 8, f) != 8 || fclose (f) != 0)
{
fputs ("Failed to create sample file.\n", stderr);
remove ("test-getdelim.txt");
return 1;
}
f = fopen ("test-getdelim.txt", "rb");
if (!f)
{
fputs ("Failed to reopen sample file.\n", stderr);
remove ("test-getdelim.txt");
return 1;
}
/* Test initial allocation, which must include trailing NUL. */
result = getdelim (&line, &len, 'n', f);
ASSERT (result == 2);
ASSERT (strcmp (line, "an") == 0);
ASSERT (2 < len);
/* Test growth of buffer. */
free (line);
line = malloc (1);
len = 1;
result = getdelim (&line, &len, 'n', f);
ASSERT (result == 3);
ASSERT (strcmp (line, "bcn") == 0);
ASSERT (3 < len);
/* Test embedded NULs and EOF behavior. */
result = getdelim (&line, &len, 'n', f);
ASSERT (result == 3);
ASSERT (memcmp (line, "d\0f", 4) == 0);
ASSERT (3 < len);
result = getdelim (&line, &len, 'n', f);
ASSERT (result == -1);
free (line);
fclose (f);
remove ("test-getdelim.txt");
return 0;
}
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