1/* Test of casefolding mapping for UTF-8 strings.
2   Copyright (C) 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>, 2009.  */
18
19#include <config.h>
20
21#include "unicase.h"
22
23#include <stdlib.h>
24
25#include "unistr.h"
26#include "uninorm.h"
27#include "macros.h"
28
29static int
30check (const uint8_t *input, size_t input_length,
31       const char *iso639_language, uninorm_t nf,
32       const uint8_t *expected, size_t expected_length)
33{
34  size_t length;
35  uint8_t *result;
36
37  /* Test return conventions with resultbuf == NULL.  */
38  result = u8_casefold (input, input_length, iso639_language, nf, NULL, &length);
39  if (!(result != NULL))
40    return 1;
41  if (!(length == expected_length))
42    return 2;
43  if (!(u8_cmp (result, expected, expected_length) == 0))
44    return 3;
45  free (result);
46
47  /* Test return conventions with resultbuf too small.  */
48  if (expected_length > 0)
49    {
50      uint8_t *preallocated;
51
52      length = expected_length - 1;
53      preallocated = (uint8_t *) malloc (length * sizeof (uint8_t));
54      result = u8_casefold (input, input_length, iso639_language, nf, preallocated, &length);
55      if (!(result != NULL))
56        return 4;
57      if (!(result != preallocated))
58        return 5;
59      if (!(length == expected_length))
60        return 6;
61      if (!(u8_cmp (result, expected, expected_length) == 0))
62        return 7;
63      free (result);
64      free (preallocated);
65    }
66
67  /* Test return conventions with resultbuf large enough.  */
68  {
69    uint8_t *preallocated;
70
71    length = expected_length;
72    preallocated = (uint8_t *) malloc (length * sizeof (uint8_t));
73    result = u8_casefold (input, input_length, iso639_language, nf, preallocated, &length);
74    if (!(result != NULL))
75      return 8;
76    if (!(preallocated == NULL || result == preallocated))
77      return 9;
78    if (!(length == expected_length))
79      return 10;
80    if (!(u8_cmp (result, expected, expected_length) == 0))
81      return 11;
82    free (preallocated);
83  }
84
85  return 0;
86}
87
88int
89main ()
90{
91  { /* Empty string.  */
92    ASSERT (check (NULL, 0, NULL, NULL, NULL, 0) == 0);
93    ASSERT (check (NULL, 0, NULL, UNINORM_NFC, NULL, 0) == 0);
94  }
95
96  /* Simple string.  */
97  { /* "Gr���� Gott. ������������������������! x=(-b��sqrt(b��-4ac))/(2a)  ���������,������,������" */
98    static const uint8_t input[] =
99      { 'G', 'r', 0xC3, 0xBC, 0xC3, 0x9F, ' ', 'G', 'o', 't', 't', '.', ' ',
100        0xD0, 0x97, 0xD0, 0xB4, 0xD1, 0x80, 0xD0, 0xB0, 0xD0, 0xB2, 0xD1, 0x81,
101        0xD1, 0x82, 0xD0, 0xB2, 0xD1, 0x83, 0xD0, 0xB9, 0xD1, 0x82, 0xD0, 0xB5,
102        '!', ' ', 'x', '=', '(', '-', 'b', 0xC2, 0xB1, 's', 'q', 'r', 't', '(',
103        'b', 0xC2, 0xB2, '-', '4', 'a', 'c', ')', ')', '/', '(', '2', 'a', ')',
104        ' ', ' ', 0xE6, 0x97, 0xA5, 0xE6, 0x9C, 0xAC, 0xE8, 0xAA, 0x9E, ',',
105        0xE4, 0xB8, 0xAD, 0xE6, 0x96, 0x87, ',',
106        0xED, 0x95, 0x9C, 0xEA, 0xB8, 0x80, '\n'
107      };
108    static const uint8_t casefolded[] =
109      { 'g', 'r', 0xC3, 0xBC, 0x73, 0x73, ' ', 'g', 'o', 't', 't', '.', ' ',
110        0xD0, 0xB7, 0xD0, 0xB4, 0xD1, 0x80, 0xD0, 0xB0, 0xD0, 0xB2, 0xD1, 0x81,
111        0xD1, 0x82, 0xD0, 0xB2, 0xD1, 0x83, 0xD0, 0xB9, 0xD1, 0x82, 0xD0, 0xB5,
112        '!', ' ', 'x', '=', '(', '-', 'b', 0xC2, 0xB1, 's', 'q', 'r', 't', '(',
113        'b', 0xC2, 0xB2, '-', '4', 'a', 'c', ')', ')', '/', '(', '2', 'a', ')',
114        ' ', ' ', 0xE6, 0x97, 0xA5, 0xE6, 0x9C, 0xAC, 0xE8, 0xAA, 0x9E, ',',
115        0xE4, 0xB8, 0xAD, 0xE6, 0x96, 0x87, ',',
116        0xED, 0x95, 0x9C, 0xEA, 0xB8, 0x80, '\n'
117      };
118    ASSERT (check (input, SIZEOF (input), NULL, NULL, casefolded, SIZEOF (casefolded)) == 0);
119  }
120
121  /* Case mapping can increase the number of Unicode characters.  */
122  { /* LATIN SMALL LETTER N PRECEDED BY APOSTROPHE */
123    static const uint8_t input[]      = { 0xC5, 0x89 };
124    static const uint8_t casefolded[] = { 0xCA, 0xBC, 0x6E };
125    ASSERT (check (input, SIZEOF (input), NULL, NULL, casefolded, SIZEOF (casefolded)) == 0);
126  }
127  { /* GREEK SMALL LETTER IOTA WITH DIALYTIKA AND TONOS */
128    static const uint8_t input[]      = { 0xCE, 0x90 };
129    static const uint8_t casefolded[] = { 0xCE, 0xB9, 0xCC, 0x88, 0xCC, 0x81 };
130    ASSERT (check (input, SIZEOF (input), NULL, NULL, casefolded, SIZEOF (casefolded)) == 0);
131  }
132
133  /* Turkish letters i �� �� I */
134  { /* LATIN CAPITAL LETTER I */
135    static const uint8_t input[]         = { 0x49 };
136    static const uint8_t casefolded[]    = { 0x69 };
137    static const uint8_t casefolded_tr[] = { 0xC4, 0xB1 };
138    ASSERT (check (input, SIZEOF (input), NULL, NULL, casefolded, SIZEOF (casefolded)) == 0);
139    ASSERT (check (input, SIZEOF (input), "tr", NULL, casefolded_tr, SIZEOF (casefolded_tr)) == 0);
140  }
141  { /* LATIN SMALL LETTER I */
142    static const uint8_t input[]      = { 0x69 };
143    static const uint8_t casefolded[] = { 0x69 };
144    ASSERT (check (input, SIZEOF (input), NULL, NULL, casefolded, SIZEOF (casefolded)) == 0);
145    ASSERT (check (input, SIZEOF (input), "tr", NULL, casefolded, SIZEOF (casefolded)) == 0);
146  }
147  { /* LATIN CAPITAL LETTER I WITH DOT ABOVE */
148    static const uint8_t input[]         = { 0xC4, 0xB0 };
149    static const uint8_t casefolded[]    = { 0x69, 0xCC, 0x87 };
150    static const uint8_t casefolded_tr[] = { 0x69 };
151    ASSERT (check (input, SIZEOF (input), NULL, NULL, casefolded, SIZEOF (casefolded)) == 0);
152    ASSERT (check (input, SIZEOF (input), "tr", NULL, casefolded_tr, SIZEOF (casefolded_tr)) == 0);
153  }
154  { /* LATIN SMALL LETTER DOTLESS I */
155    static const uint8_t input[]      = { 0xC4, 0xB1 };
156    static const uint8_t casefolded[] = { 0xC4, 0xB1 };
157    ASSERT (check (input, SIZEOF (input), NULL, NULL, casefolded, SIZEOF (casefolded)) == 0);
158    ASSERT (check (input, SIZEOF (input), "tr", NULL, casefolded, SIZEOF (casefolded)) == 0);
159  }
160  { /* "topkap��" */
161    static const uint8_t input[] =
162      { 0x74, 0x6F, 0x70, 0x6B, 0x61, 0x70, 0xC4, 0xB1 };
163    static const uint8_t casefolded[] =
164      { 0x74, 0x6F, 0x70, 0x6B, 0x61, 0x70, 0xC4, 0xB1 };
165    ASSERT (check (input, SIZEOF (input), NULL, NULL, casefolded, SIZEOF (casefolded)) == 0);
166    ASSERT (check (input, SIZEOF (input), "tr", NULL, casefolded, SIZEOF (casefolded)) == 0);
167  }
168
169  /* Uppercasing can increase the number of Unicode characters.  */
170  { /* "hei��" */
171    static const uint8_t input[]      = { 0x68, 0x65, 0x69, 0xC3, 0x9F };
172    static const uint8_t casefolded[] = { 0x68, 0x65, 0x69, 0x73, 0x73 };
173    ASSERT (check (input, SIZEOF (input), NULL, NULL, casefolded, SIZEOF (casefolded)) == 0);
174  }
175
176  /* Case mappings for some characters can depend on the surrounding characters.  */
177  { /* "������������������������ ����������������������" */
178    static const uint8_t input[] =
179      {
180        0xCF, 0x80, 0xCE, 0xB5, 0xCF, 0x81, 0xCE, 0xB9, 0xCF, 0x83, 0xCF, 0x83,
181        0xCF, 0x8C, 0xCF, 0x84, 0xCE, 0xB5, 0xCF, 0x81, 0xCE, 0xB5, 0xCF, 0x82,
182        ' ', 0xCF, 0x80, 0xCE, 0xBB, 0xCE, 0xB7, 0xCF, 0x81, 0xCE, 0xBF,
183        0xCF, 0x86, 0xCE, 0xBF, 0xCF, 0x81, 0xCE, 0xAF, 0xCE, 0xB5, 0xCF, 0x82
184      };
185    static const uint8_t casefolded[] =
186      {
187        0xCF, 0x80, 0xCE, 0xB5, 0xCF, 0x81, 0xCE, 0xB9, 0xCF, 0x83, 0xCF, 0x83,
188        0xCF, 0x8C, 0xCF, 0x84, 0xCE, 0xB5, 0xCF, 0x81, 0xCE, 0xB5, 0xCF, 0x83,
189        ' ', 0xCF, 0x80, 0xCE, 0xBB, 0xCE, 0xB7, 0xCF, 0x81, 0xCE, 0xBF,
190        0xCF, 0x86, 0xCE, 0xBF, 0xCF, 0x81, 0xCE, 0xAF, 0xCE, 0xB5, 0xCF, 0x83
191      };
192    ASSERT (check (input, SIZEOF (input), NULL, NULL, casefolded, SIZEOF (casefolded)) == 0);
193  }
194
195  /* Case mapping can require subsequent normalization.  */
196  { /* LATIN SMALL LETTER J WITH CARON, COMBINING DOT BELOW */
197    static const uint8_t input[]                 = { 0xC7, 0xB0, 0xCC, 0xA3 };
198    static const uint8_t casefolded[]            = { 0x6A, 0xCC, 0x8C, 0xCC, 0xA3 };
199    static const uint8_t casefolded_decomposed[] = { 0x6A, 0xCC, 0xA3, 0xCC, 0x8C };
200    static const uint8_t casefolded_normalized[] = { 0xC7, 0xB0, 0xCC, 0xA3 };
201    ASSERT (check (input, SIZEOF (input), NULL, NULL,        casefolded, SIZEOF (casefolded)) == 0);
202    ASSERT (check (input, SIZEOF (input), NULL, UNINORM_NFD, casefolded_decomposed, SIZEOF (casefolded_decomposed)) == 0);
203    ASSERT (check (input, SIZEOF (input), NULL, UNINORM_NFC, casefolded_normalized, SIZEOF (casefolded_normalized)) == 0);
204  }
205
206  return 0;
207}
208