1/* Test of u8_[v]asnprintf() function.
2   Copyright (C) 2007, 2009, 2010 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 of the License, or
7   (at your option) 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 <http://www.gnu.org/licenses/>.  */
16
17/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
18
19static void
20test_function (uint8_t * (*my_asnprintf) (uint8_t *, size_t *, const char *, ...))
21{
22  uint8_t buf[8];
23  int size;
24
25  /* Test return value convention.  */
26
27  for (size = 0; size <= 8; size++)
28    {
29      size_t length = size;
30      uint8_t *result = my_asnprintf (NULL, &length, "%d", 12345);
31      static const uint8_t expected[] = "12345";
32      ASSERT (result != NULL);
33      ASSERT (u8_strcmp (result, expected) == 0);
34      ASSERT (length == 5);
35      free (result);
36    }
37
38  for (size = 0; size <= 8; size++)
39    {
40      static const uint8_t initializer[] = "DEADBEEF";
41      static const uint8_t expected[] = "12345";
42      size_t length;
43      uint8_t *result;
44
45      u8_cpy (buf, initializer, 8);
46      length = size;
47      result = my_asnprintf (buf, &length, "%d", 12345);
48      ASSERT (result != NULL);
49      ASSERT (u8_strcmp (result, expected) == 0);
50      ASSERT (length == 5);
51      if (size < 6)
52        ASSERT (result != buf);
53      ASSERT (u8_cmp (buf + size, initializer + size, 8 - size) == 0);
54      if (result != buf)
55        free (result);
56    }
57}
58