summaryrefslogtreecommitdiff
path: root/tests/test-astrxfrm.c
blob: 6025aa1525f5e9bb839707fd50975fac89f124e0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
/* Test of astrxfrm() function.
   Copyright (C) 2010-2018 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 of the License, 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>, 2010.  */

#include <config.h>

#include "astrxfrm.h"

#include <locale.h>
#include <string.h>

#include "macros.h"

int
main ()
{
  const char input[] = "B\303\266se B\303\274bchen"; /* "Böse Bübchen" */
  char *expected_transform;

  setlocale (LC_ALL, "de_DE.UTF-8");

  /* Test resultbuf = NULL.  */
  {
    size_t length = 0;
    char *transform = astrxfrm (input, NULL, &length);
    ASSERT (transform != NULL);
    ASSERT (length == strlen (transform) + 1);
    expected_transform = transform;
  }

  /* Test resultbuf = NULL.  Initial value of length is ignored here.  */
  {
    size_t length = 100;
    char *transform = astrxfrm (input, NULL, &length);
    ASSERT (transform != NULL);
    ASSERT (strcmp (transform, expected_transform) == 0);
    ASSERT (length == strlen (transform) + 1);
  }

  /* Test resultbuf != NULL with an initial length = 0.  */
  {
    char buf[1];
    size_t length = 0;
    char *transform;
    buf[0] = '@';
    transform = astrxfrm (input, buf, &length);
    ASSERT (transform != NULL);
    ASSERT (transform != buf);
    ASSERT (strcmp (transform, expected_transform) == 0);
    ASSERT (length == strlen (transform) + 1);
    ASSERT (buf[0] == '@');
  }

  /* Test resultbuf != NULL with an initial length that is too small.  */
  {
    char buf[3];
    size_t length = sizeof (buf) - 1;
    char *transform;
    buf[sizeof (buf) - 1] = '@';
    transform = astrxfrm (input, buf, &length);
    ASSERT (transform != NULL);
    ASSERT (transform != buf);
    ASSERT (strcmp (transform, expected_transform) == 0);
    ASSERT (length == strlen (transform) + 1);
    ASSERT (buf[sizeof (buf) - 1] == '@');
  }

  /* Test resultbuf != NULL with an initial length that is large enough.  */
  {
    char buf[200];
    size_t length = sizeof (buf) - 1;
    char *transform;
    buf[sizeof (buf) - 1] = '@';
    transform = astrxfrm (input, buf, &length);
    ASSERT (transform != NULL);
    ASSERT (transform == buf);
    ASSERT (strcmp (transform, expected_transform) == 0);
    ASSERT (length == strlen (transform) + 1);
    ASSERT (buf[sizeof (buf) - 1] == '@');
  }

  return 0;
}