1/* Test of u16_uctomb() function.
2   Copyright (C) 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>, 2010.  */
18
19#include <config.h>
20
21#include "unistr.h"
22
23#include "macros.h"
24
25#define MAGIC 0xBADE
26
27int
28main ()
29{
30  /* Test ISO 646 character, in particular the NUL character.  */
31  {
32    ucs4_t uc;
33
34    for (uc = 0; uc < 0x80; uc++)
35      {
36        uint16_t buf[3] = { MAGIC, MAGIC, MAGIC };
37        int ret;
38
39        ret = u16_uctomb (buf, uc, 0);
40        ASSERT (ret == -2);
41        ASSERT (buf[0] == MAGIC);
42
43        ret = u16_uctomb (buf, uc, 1);
44        ASSERT (ret == 1);
45        ASSERT (buf[0] == uc);
46        ASSERT (buf[1] == MAGIC);
47      }
48  }
49
50  /* Test BMP character.  */
51  {
52    ucs4_t uc = 0x20AC;
53    uint16_t buf[3] = { MAGIC, MAGIC, MAGIC };
54    int ret;
55
56    ret = u16_uctomb (buf, uc, 0);
57    ASSERT (ret == -2);
58    ASSERT (buf[0] == MAGIC);
59
60    ret = u16_uctomb (buf, uc, 1);
61    ASSERT (ret == 1);
62    ASSERT (buf[0] == uc);
63    ASSERT (buf[1] == MAGIC);
64  }
65
66  /* Test non-BMP character.  */
67  {
68    ucs4_t uc = 0x10FFFD;
69    uint16_t buf[3] = { MAGIC, MAGIC, MAGIC };
70    int ret;
71
72    ret = u16_uctomb (buf, uc, 0);
73    ASSERT (ret == -2);
74    ASSERT (buf[0] == MAGIC);
75
76    ret = u16_uctomb (buf, uc, 1);
77    ASSERT (ret == -2);
78    ASSERT (buf[0] == MAGIC);
79
80    ret = u16_uctomb (buf, uc, 2);
81    ASSERT (ret == 2);
82    ASSERT (buf[0] == 0xDBFF);
83    ASSERT (buf[1] == 0xDFFD);
84    ASSERT (buf[2] == MAGIC);
85  }
86
87  /* Test invalid characters.  */
88  {
89    ucs4_t invalid[] = { 0x110000, 0xD800, 0xDBFF, 0xDC00, 0xDFFF };
90    uint16_t buf[3] = { MAGIC, MAGIC, MAGIC };
91    size_t i;
92
93    for (i = 0; i < SIZEOF (invalid); i++)
94      {
95        ucs4_t uc = invalid[i];
96        int n;
97
98        for (n = 0; n <= 2; n++)
99          {
100            int ret = u16_uctomb (buf, uc, n);
101            ASSERT (ret == -1);
102            ASSERT (buf[0] == MAGIC);
103            ASSERT (buf[1] == MAGIC);
104            ASSERT (buf[2] == MAGIC);
105          }
106      }
107  }
108
109  return 0;
110}
111