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/* Test of buffer that accumulates a string by piecewise concatenation.
Copyright (C) 2021 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 2, 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, see <https://www.gnu.org/licenses/>. */
/* Written by Bruno Haible <bruno@clisp.org>, 2021. */
#include <config.h>
#include "string-buffer.h"
#include <string.h>
#include "macros.h"
static int
my_appendf (struct string_buffer *buffer, const char *formatstring, ...)
{
va_list args;
va_start (args, formatstring);
int ret = sb_appendvf (buffer, formatstring, args);
va_end (args);
return ret;
}
char invalid_format_string_1[] = "%&";
char invalid_format_string_2[] = "%^";
int
main ()
{
/* Test simple string concatenation. */
{
struct string_buffer buffer;
sb_init (&buffer);
char *s = sb_dupfree (&buffer);
ASSERT (s != NULL && strcmp (s, "") == 0);
free (s);
}
{
struct string_buffer buffer;
sb_init (&buffer);
sb_append (&buffer, "abc");
sb_append (&buffer, "");
sb_append (&buffer, "defg");
char *s = sb_dupfree (&buffer);
ASSERT (s != NULL && strcmp (s, "abcdefg") == 0);
free (s);
}
/* Test printf-like formatting. */
{
struct string_buffer buffer;
sb_init (&buffer);
sb_append (&buffer, "<");
sb_appendf (&buffer, "%x", 3735928559U);
sb_append (&buffer, ">");
char *s = sb_dupfree (&buffer);
ASSERT (s != NULL && strcmp (s, "<deadbeef>") == 0);
free (s);
}
/* Test vprintf-like formatting. */
{
struct string_buffer buffer;
sb_init (&buffer);
sb_append (&buffer, "<");
my_appendf (&buffer, "%x", 3735928559U);
sb_append (&buffer, ">");
char *s = sb_dupfree (&buffer);
ASSERT (s != NULL && strcmp (s, "<deadbeef>") == 0);
free (s);
}
/* Test printf-like formatting failure.
On all systems except AIX, trying to convert the wide-character 0x76543210
to a multibyte string (in the "C" locale) fails.
On all systems where REPLACE_VSNPRINTF=1 (this includes AIX), i.e. where
the Gnulib implementation of vsnprintf() is used), invalid format
directives make the *printf call fail. */
{
struct string_buffer buffer;
sb_init (&buffer);
sb_append (&buffer, "<");
sb_appendf (&buffer, "%lc", 0x76543210);
sb_append (&buffer, "|");
sb_appendf (&buffer, invalid_format_string_1, 1);
sb_append (&buffer, "|");
sb_appendf (&buffer, invalid_format_string_2, 2);
sb_append (&buffer, ">");
char *s = sb_dupfree (&buffer);
ASSERT (s == NULL);
}
return 0;
}
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