1 /* Test of u8_mbtoucr() function.
2    Copyright (C) 2010-2021 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 <https://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 int
main()26 main ()
27 {
28   ucs4_t uc;
29   int ret;
30 
31   /* Test NUL unit input.  */
32   {
33     static const uint8_t input[] = "";
34     uc = 0xBADFACE;
35     ret = u8_mbtoucr (&uc, input, 1);
36     ASSERT (ret == 1);
37     ASSERT (uc == 0);
38   }
39 
40   /* Test ISO 646 unit input.  */
41   {
42     ucs4_t c;
43     uint8_t buf[1];
44 
45     for (c = 0; c < 0x80; c++)
46       {
47         buf[0] = c;
48         uc = 0xBADFACE;
49         ret = u8_mbtoucr (&uc, buf, 1);
50         ASSERT (ret == 1);
51         ASSERT (uc == c);
52       }
53   }
54 
55   /* Test 2-byte character input.  */
56   {
57     static const uint8_t input[] = { 0xC3, 0x97 };
58     uc = 0xBADFACE;
59     ret = u8_mbtoucr (&uc, input, 2);
60     ASSERT (ret == 2);
61     ASSERT (uc == 0x00D7);
62   }
63 
64   /* Test 3-byte character input.  */
65   {
66     static const uint8_t input[] = { 0xE2, 0x82, 0xAC };
67     uc = 0xBADFACE;
68     ret = u8_mbtoucr (&uc, input, 3);
69     ASSERT (ret == 3);
70     ASSERT (uc == 0x20AC);
71   }
72 
73   /* Test 4-byte character input.  */
74   {
75     static const uint8_t input[] = { 0xF4, 0x8F, 0xBF, 0xBD };
76     uc = 0xBADFACE;
77     ret = u8_mbtoucr (&uc, input, 4);
78     ASSERT (ret == 4);
79     ASSERT (uc == 0x10FFFD);
80   }
81 
82   /* Test incomplete/invalid 1-byte input.  */
83   {
84     static const uint8_t input[] = { 0xC1 };
85     uc = 0xBADFACE;
86     ret = u8_mbtoucr (&uc, input, 1);
87     ASSERT (ret == -1);
88     ASSERT (uc == 0xFFFD);
89   }
90   {
91     static const uint8_t input[] = { 0xC3 };
92     uc = 0xBADFACE;
93     ret = u8_mbtoucr (&uc, input, 1);
94     ASSERT (ret == -2);
95     ASSERT (uc == 0xFFFD);
96   }
97   {
98     static const uint8_t input[] = { 0xE2 };
99     uc = 0xBADFACE;
100     ret = u8_mbtoucr (&uc, input, 1);
101     ASSERT (ret == -2);
102     ASSERT (uc == 0xFFFD);
103   }
104   {
105     static const uint8_t input[] = { 0xF4 };
106     uc = 0xBADFACE;
107     ret = u8_mbtoucr (&uc, input, 1);
108     ASSERT (ret == -2);
109     ASSERT (uc == 0xFFFD);
110   }
111   {
112     static const uint8_t input[] = { 0xFE };
113     uc = 0xBADFACE;
114     ret = u8_mbtoucr (&uc, input, 1);
115     ASSERT (ret == -1);
116     ASSERT (uc == 0xFFFD);
117   }
118 
119   /* Test incomplete/invalid 2-byte input.  */
120   {
121     static const uint8_t input[] = { 0xE0, 0x9F };
122     uc = 0xBADFACE;
123     ret = u8_mbtoucr (&uc, input, 2);
124     ASSERT (ret == -1);
125     ASSERT (uc == 0xFFFD);
126   }
127   {
128     static const uint8_t input[] = { 0xE2, 0x82 };
129     uc = 0xBADFACE;
130     ret = u8_mbtoucr (&uc, input, 2);
131     ASSERT (ret == -2);
132     ASSERT (uc == 0xFFFD);
133   }
134   {
135     static const uint8_t input[] = { 0xE2, 0xD0 };
136     uc = 0xBADFACE;
137     ret = u8_mbtoucr (&uc, input, 2);
138     ASSERT (ret == -1);
139     ASSERT (uc == 0xFFFD);
140   }
141   {
142     static const uint8_t input[] = { 0xF0, 0x8F };
143     uc = 0xBADFACE;
144     ret = u8_mbtoucr (&uc, input, 2);
145     ASSERT (ret == -1);
146     ASSERT (uc == 0xFFFD);
147   }
148   {
149     static const uint8_t input[] = { 0xF3, 0x8F };
150     uc = 0xBADFACE;
151     ret = u8_mbtoucr (&uc, input, 2);
152     ASSERT (ret == -2);
153     ASSERT (uc == 0xFFFD);
154   }
155   {
156     static const uint8_t input[] = { 0xF3, 0xD0 };
157     uc = 0xBADFACE;
158     ret = u8_mbtoucr (&uc, input, 2);
159     ASSERT (ret == -1);
160     ASSERT (uc == 0xFFFD);
161   }
162 
163   /* Test incomplete/invalid 3-byte input.  */
164   {
165     static const uint8_t input[] = { 0xF3, 0x8F, 0xBF };
166     uc = 0xBADFACE;
167     ret = u8_mbtoucr (&uc, input, 3);
168     ASSERT (ret == -2);
169     ASSERT (uc == 0xFFFD);
170   }
171   {
172     static const uint8_t input[] = { 0xF3, 0xD0, 0xBF };
173     uc = 0xBADFACE;
174     ret = u8_mbtoucr (&uc, input, 3);
175     ASSERT (ret == -1);
176     ASSERT (uc == 0xFFFD);
177   }
178   {
179     static const uint8_t input[] = { 0xF3, 0x8F, 0xD0 };
180     uc = 0xBADFACE;
181     ret = u8_mbtoucr (&uc, input, 3);
182     ASSERT (ret == -1);
183     ASSERT (uc == 0xFFFD);
184   }
185 
186   return 0;
187 }
188