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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") == 3);
40 assert_se(utf8_encoded_valid_unichar("\302\256") == 2);
41 assert_se(utf8_encoded_valid_unichar("a") == 1);
42 assert_se(utf8_encoded_valid_unichar("\341\204") < 0);
43 assert_se(utf8_encoded_valid_unichar("\341\204\341\204") < 0);
46 static void test_utf8_escaping(void) {
47 _cleanup_free_
char *p1
, *p2
, *p3
;
49 p1
= utf8_escape_invalid("goo goo goo");
51 assert_se(utf8_is_valid(p1
));
53 p2
= utf8_escape_invalid("\341\204\341\204");
55 assert_se(utf8_is_valid(p2
));
57 p3
= utf8_escape_invalid("\341\204");
59 assert_se(utf8_is_valid(p3
));
62 static void test_utf8_escaping_printable(void) {
63 _cleanup_free_
char *p1
, *p2
, *p3
, *p4
, *p5
, *p6
;
65 p1
= utf8_escape_non_printable("goo goo goo");
67 assert_se(utf8_is_valid(p1
));
69 p2
= utf8_escape_non_printable("\341\204\341\204");
71 assert_se(utf8_is_valid(p2
));
73 p3
= utf8_escape_non_printable("\341\204");
75 assert_se(utf8_is_valid(p3
));
77 p4
= utf8_escape_non_printable("ąę\n가너도루\n1234\n\341\204\341\204\n\001 \019\20\a");
79 assert_se(utf8_is_valid(p4
));
81 p5
= utf8_escape_non_printable("\001 \019\20\a");
83 assert_se(utf8_is_valid(p5
));
85 p6
= utf8_escape_non_printable("\xef\xbf\x30\x13");
87 assert_se(utf8_is_valid(p6
));
90 static void test_utf16_to_utf8(void) {
91 const char16_t utf16
[] = { htole16('a'), htole16(0xd800), htole16('b'), htole16(0xdc00), htole16('c'), htole16(0xd801), htole16(0xdc37) };
92 static const char utf8
[] = { 'a', 'b', 'c', 0xf0, 0x90, 0x90, 0xb7 };
93 _cleanup_free_ char16_t
*b
= NULL
;
94 _cleanup_free_
char *a
= NULL
;
96 /* Convert UTF-16 to UTF-8, filtering embedded bad chars */
97 a
= utf16_to_utf8(utf16
, sizeof(utf16
));
99 assert_se(memcmp(a
, utf8
, sizeof(utf8
)) == 0);
101 /* Convert UTF-8 to UTF-16, and back */
102 b
= utf8_to_utf16(utf8
, sizeof(utf8
));
106 a
= utf16_to_utf8(b
, char16_strlen(b
) * 2);
108 assert_se(strlen(a
) == sizeof(utf8
));
109 assert_se(memcmp(a
, utf8
, sizeof(utf8
)) == 0);
112 static void test_utf8_n_codepoints(void) {
113 assert_se(utf8_n_codepoints("abc") == 3);
114 assert_se(utf8_n_codepoints("zażółcić gęślą jaźń") == 19);
115 assert_se(utf8_n_codepoints("串") == 1);
116 assert_se(utf8_n_codepoints("") == 0);
117 assert_se(utf8_n_codepoints("…👊🔪💐…") == 5);
118 assert_se(utf8_n_codepoints("\xF1") == (size_t) -1);
121 static void test_utf8_console_width(void) {
122 assert_se(utf8_console_width("abc") == 3);
123 assert_se(utf8_console_width("zażółcić gęślą jaźń") == 19);
124 assert_se(utf8_console_width("串") == 2);
125 assert_se(utf8_console_width("") == 0);
126 assert_se(utf8_console_width("…👊🔪💐…") == 8);
127 assert_se(utf8_console_width("\xF1") == (size_t) -1);
130 static void test_utf8_to_utf16(void) {
135 "zażółcić gęślą jaźń",
140 _cleanup_free_ char16_t
*a
= NULL
;
141 _cleanup_free_
char *b
= NULL
;
143 a
= utf8_to_utf16(p
, strlen(p
));
146 b
= utf16_to_utf8(a
, char16_strlen(a
) * 2);
148 assert_se(streq(p
, b
));
152 int main(int argc
, char *argv
[]) {
153 test_utf8_is_valid();
154 test_utf8_is_printable();
155 test_ascii_is_valid();
156 test_ascii_is_valid_n();
157 test_utf8_encoded_valid_unichar();
158 test_utf8_escaping();
159 test_utf8_escaping_printable();
160 test_utf16_to_utf8();
161 test_utf8_n_codepoints();
162 test_utf8_console_width();
163 test_utf8_to_utf16();