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git.ipfire.org Git - thirdparty/systemd.git/blob - src/test/test-utf8.c
1 /* SPDX-License-Identifier: LGPL-2.1+ */
3 #include "alloc-util.h"
4 #include "string-util.h"
9 static void test_utf8_is_printable(void) {
10 assert_se(utf8_is_printable("ascii is valid\tunicode", 22));
11 assert_se(utf8_is_printable("\342\204\242", 3));
12 assert_se(!utf8_is_printable("\341\204", 2));
13 assert_se(utf8_is_printable("ąę", 4));
16 static void test_utf8_is_valid(void) {
17 assert_se(utf8_is_valid("ascii is valid unicode"));
18 assert_se(utf8_is_valid("\342\204\242"));
19 assert_se(!utf8_is_valid("\341\204"));
22 static void test_ascii_is_valid(void) {
23 assert_se( ascii_is_valid("alsdjf\t\vbarr\nba z"));
24 assert_se(!ascii_is_valid("\342\204\242"));
25 assert_se(!ascii_is_valid("\341\204"));
28 static void test_ascii_is_valid_n(void) {
29 assert_se( ascii_is_valid_n("alsdjf\t\vbarr\nba z", 17));
30 assert_se( ascii_is_valid_n("alsdjf\t\vbarr\nba z", 16));
31 assert_se(!ascii_is_valid_n("alsdjf\t\vbarr\nba z", 18));
32 assert_se(!ascii_is_valid_n("\342\204\242", 3));
33 assert_se(!ascii_is_valid_n("\342\204\242", 2));
34 assert_se(!ascii_is_valid_n("\342\204\242", 1));
35 assert_se( ascii_is_valid_n("\342\204\242", 0));
38 static void test_utf8_encoded_valid_unichar(void) {
39 assert_se(utf8_encoded_valid_unichar("\342\204\242", 1) == -EINVAL
); /* truncated */
40 assert_se(utf8_encoded_valid_unichar("\342\204\242", 2) == -EINVAL
); /* truncated */
41 assert_se(utf8_encoded_valid_unichar("\342\204\242", 3) == 3);
42 assert_se(utf8_encoded_valid_unichar("\342\204\242", 4) == 3);
43 assert_se(utf8_encoded_valid_unichar("\302\256", 1) == -EINVAL
); /* truncated */
44 assert_se(utf8_encoded_valid_unichar("\302\256", 2) == 2);
45 assert_se(utf8_encoded_valid_unichar("\302\256", 3) == 2);
46 assert_se(utf8_encoded_valid_unichar("\302\256", (size_t) -1) == 2);
47 assert_se(utf8_encoded_valid_unichar("a", 1) == 1);
48 assert_se(utf8_encoded_valid_unichar("a", 2) == 1);
49 assert_se(utf8_encoded_valid_unichar("\341\204", 1) == -EINVAL
); /* truncated, potentially valid */
50 assert_se(utf8_encoded_valid_unichar("\341\204", 2) == -EINVAL
); /* truncated, potentially valid */
51 assert_se(utf8_encoded_valid_unichar("\341\204", 3) == -EINVAL
);
52 assert_se(utf8_encoded_valid_unichar("\341\204\341\204", 4) == -EINVAL
);
53 assert_se(utf8_encoded_valid_unichar("\341\204\341\204", 5) == -EINVAL
);
56 static void test_utf8_escaping(void) {
57 _cleanup_free_
char *p1
, *p2
, *p3
;
59 p1
= utf8_escape_invalid("goo goo goo");
61 assert_se(utf8_is_valid(p1
));
63 p2
= utf8_escape_invalid("\341\204\341\204");
65 assert_se(utf8_is_valid(p2
));
67 p3
= utf8_escape_invalid("\341\204");
69 assert_se(utf8_is_valid(p3
));
72 static void test_utf8_escaping_printable(void) {
73 _cleanup_free_
char *p1
, *p2
, *p3
, *p4
, *p5
, *p6
;
75 p1
= utf8_escape_non_printable("goo goo goo");
77 assert_se(utf8_is_valid(p1
));
79 p2
= utf8_escape_non_printable("\341\204\341\204");
81 assert_se(utf8_is_valid(p2
));
83 p3
= utf8_escape_non_printable("\341\204");
85 assert_se(utf8_is_valid(p3
));
87 p4
= utf8_escape_non_printable("ąę\n가너도루\n1234\n\341\204\341\204\n\001 \019\20\a");
89 assert_se(utf8_is_valid(p4
));
91 p5
= utf8_escape_non_printable("\001 \019\20\a");
93 assert_se(utf8_is_valid(p5
));
95 p6
= utf8_escape_non_printable("\xef\xbf\x30\x13");
97 assert_se(utf8_is_valid(p6
));
100 static void test_utf16_to_utf8(void) {
101 const char16_t utf16
[] = { htole16('a'), htole16(0xd800), htole16('b'), htole16(0xdc00), htole16('c'), htole16(0xd801), htole16(0xdc37) };
102 static const char utf8
[] = { 'a', 'b', 'c', 0xf0, 0x90, 0x90, 0xb7 };
103 _cleanup_free_ char16_t
*b
= NULL
;
104 _cleanup_free_
char *a
= NULL
;
106 /* Convert UTF-16 to UTF-8, filtering embedded bad chars */
107 a
= utf16_to_utf8(utf16
, sizeof(utf16
));
109 assert_se(memcmp(a
, utf8
, sizeof(utf8
)) == 0);
111 /* Convert UTF-8 to UTF-16, and back */
112 b
= utf8_to_utf16(utf8
, sizeof(utf8
));
116 a
= utf16_to_utf8(b
, char16_strlen(b
) * 2);
118 assert_se(strlen(a
) == sizeof(utf8
));
119 assert_se(memcmp(a
, utf8
, sizeof(utf8
)) == 0);
122 static void test_utf8_n_codepoints(void) {
123 assert_se(utf8_n_codepoints("abc") == 3);
124 assert_se(utf8_n_codepoints("zażółcić gęślą jaźń") == 19);
125 assert_se(utf8_n_codepoints("串") == 1);
126 assert_se(utf8_n_codepoints("") == 0);
127 assert_se(utf8_n_codepoints("…👊🔪💐…") == 5);
128 assert_se(utf8_n_codepoints("\xF1") == (size_t) -1);
131 static void test_utf8_console_width(void) {
132 assert_se(utf8_console_width("abc") == 3);
133 assert_se(utf8_console_width("zażółcić gęślą jaźń") == 19);
134 assert_se(utf8_console_width("串") == 2);
135 assert_se(utf8_console_width("") == 0);
136 assert_se(utf8_console_width("…👊🔪💐…") == 8);
137 assert_se(utf8_console_width("\xF1") == (size_t) -1);
140 static void test_utf8_to_utf16(void) {
145 "zażółcić gęślą jaźń",
150 _cleanup_free_ char16_t
*a
= NULL
;
151 _cleanup_free_
char *b
= NULL
;
153 a
= utf8_to_utf16(p
, strlen(p
));
156 b
= utf16_to_utf8(a
, char16_strlen(a
) * 2);
158 assert_se(streq(p
, b
));
162 int main(int argc
, char *argv
[]) {
163 test_utf8_is_valid();
164 test_utf8_is_printable();
165 test_ascii_is_valid();
166 test_ascii_is_valid_n();
167 test_utf8_encoded_valid_unichar();
168 test_utf8_escaping();
169 test_utf8_escaping_printable();
170 test_utf16_to_utf8();
171 test_utf8_n_codepoints();
172 test_utf8_console_width();
173 test_utf8_to_utf16();