1 /* Test of u16_to_u8() function.
2 Copyright (C) 2010-2014 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 <errno.h>
24
25 #include "macros.h"
26
27 static int
check(const uint16_t * input,size_t input_length,const uint8_t * expected,size_t expected_length)28 check (const uint16_t *input, size_t input_length,
29 const uint8_t *expected, size_t expected_length)
30 {
31 size_t length;
32 uint8_t *result;
33
34 /* Test return conventions with resultbuf == NULL. */
35 result = u16_to_u8 (input, input_length, NULL, &length);
36 if (!(result != NULL))
37 return 1;
38 if (!(length == expected_length))
39 return 2;
40 if (!(u8_cmp (result, expected, expected_length) == 0))
41 return 3;
42 free (result);
43
44 /* Test return conventions with resultbuf too small. */
45 if (expected_length > 0)
46 {
47 uint8_t *preallocated;
48
49 length = expected_length - 1;
50 preallocated = (uint8_t *) malloc (length * sizeof (uint8_t));
51 result = u16_to_u8 (input, input_length, preallocated, &length);
52 if (!(result != NULL))
53 return 4;
54 if (!(result != preallocated))
55 return 5;
56 if (!(length == expected_length))
57 return 6;
58 if (!(u8_cmp (result, expected, expected_length) == 0))
59 return 7;
60 free (result);
61 free (preallocated);
62 }
63
64 /* Test return conventions with resultbuf large enough. */
65 {
66 uint8_t *preallocated;
67
68 length = expected_length;
69 preallocated = (uint8_t *) malloc (length * sizeof (uint8_t));
70 result = u16_to_u8 (input, input_length, preallocated, &length);
71 if (!(result != NULL))
72 return 8;
73 if (!(preallocated == NULL || result == preallocated))
74 return 9;
75 if (!(length == expected_length))
76 return 10;
77 if (!(u8_cmp (result, expected, expected_length) == 0))
78 return 11;
79 free (preallocated);
80 }
81
82 return 0;
83 }
84
85 int
main()86 main ()
87 {
88 /* Empty string. */
89 ASSERT (check (NULL, 0, NULL, 0) == 0);
90
91 /* Simple string. */
92 { /* "Grüß Gott. Здравствуйте! x=(-b±sqrt(b²-4ac))/(2a) 日本語,中文,한글" */
93 static const uint16_t input[] =
94 { 'G', 'r', 0x00FC, 0x00DF, ' ', 'G', 'o', 't', 't', '.', ' ',
95 0x0417, 0x0434, 0x0440, 0x0430, 0x0432, 0x0441, 0x0442, 0x0432, 0x0443,
96 0x0439, 0x0442, 0x0435, '!', ' ',
97 'x', '=', '(', '-', 'b', 0x00B1, 's', 'q', 'r', 't', '(', 'b', 0x00B2,
98 '-', '4', 'a', 'c', ')', ')', '/', '(', '2', 'a', ')', ' ', ' ',
99 0x65E5, 0x672C, 0x8A9E, ',', 0x4E2D, 0x6587, ',', 0xD55C, 0xAE00, '\n'
100 };
101 static const uint8_t expected[] =
102 { 'G', 'r', 0xC3, 0xBC, 0xC3, 0x9F, ' ', 'G', 'o', 't', 't', '.', ' ',
103 0xD0, 0x97, 0xD0, 0xB4, 0xD1, 0x80, 0xD0, 0xB0, 0xD0, 0xB2, 0xD1, 0x81,
104 0xD1, 0x82, 0xD0, 0xB2, 0xD1, 0x83, 0xD0, 0xB9, 0xD1, 0x82, 0xD0, 0xB5,
105 '!', ' ', 'x', '=', '(', '-', 'b', 0xC2, 0xB1, 's', 'q', 'r', 't', '(',
106 'b', 0xC2, 0xB2, '-', '4', 'a', 'c', ')', ')', '/', '(', '2', 'a', ')',
107 ' ', ' ', 0xE6, 0x97, 0xA5, 0xE6, 0x9C, 0xAC, 0xE8, 0xAA, 0x9E, ',',
108 0xE4, 0xB8, 0xAD, 0xE6, 0x96, 0x87, ',',
109 0xED, 0x95, 0x9C, 0xEA, 0xB8, 0x80, '\n'
110 };
111 ASSERT (check (input, SIZEOF (input), expected, SIZEOF (expected)) == 0);
112 }
113
114 /* String with characters outside the BMP. */
115 {
116 static const uint16_t input[] =
117 { '-', '(', 0xD835, 0xDD1E, 0x00D7, 0xD835, 0xDD1F, ')', '=',
118 0xD835, 0xDD1F, 0x00D7, 0xD835, 0xDD1E
119 };
120 static const uint8_t expected[] =
121 { '-', '(', 0xF0, 0x9D, 0x94, 0x9E, 0xC3, 0x97, 0xF0, 0x9D, 0x94, 0x9F,
122 ')', '=', 0xF0, 0x9D, 0x94, 0x9F, 0xC3, 0x97, 0xF0, 0x9D, 0x94, 0x9E
123 };
124 ASSERT (check (input, SIZEOF (input), expected, SIZEOF (expected)) == 0);
125 }
126
127 /* Invalid input. */
128 {
129 static const uint16_t input[] = { 'x', 0xDD1E, 0xD835, 'y' };
130 #if 0 /* Currently invalid input is rejected, not accommodated. */
131 static const uint8_t expected[] =
132 { 'x', 0xEF, 0xBF, 0xBD, 0xEF, 0xBF, 0xBD, 'y' };
133 ASSERT (check (input, SIZEOF (input), expected, SIZEOF (expected)) == 0);
134 #else
135 size_t length;
136 uint8_t *result;
137 uint8_t preallocated[10];
138
139 /* Test return conventions with resultbuf == NULL. */
140 result = u16_to_u8 (input, SIZEOF (input), NULL, &length);
141 ASSERT (result == NULL);
142 ASSERT (errno == EILSEQ);
143
144 /* Test return conventions with resultbuf too small. */
145 length = 1;
146 result = u16_to_u8 (input, SIZEOF (input), preallocated, &length);
147 ASSERT (result == NULL);
148 ASSERT (errno == EILSEQ);
149
150 /* Test return conventions with resultbuf large enough. */
151 length = SIZEOF (preallocated);
152 result = u16_to_u8 (input, SIZEOF (input), preallocated, &length);
153 ASSERT (result == NULL);
154 ASSERT (errno == EILSEQ);
155 #endif
156 }
157
158 return 0;
159 }
160