[thirdparty/systemd.git] / src / test / test-utf8.c

/* SPDX-License-Identifier: LGPL-2.1+ */

#include "alloc-util.h"
#include "string-util.h"
#include "strv.h"
#include "utf8.h"
#include "util.h"

static void test_utf8_is_printable(void) {
        log_info("/* %s */", __func__);

        assert_se(utf8_is_printable("ascii is valid\tunicode", 22));
        assert_se(utf8_is_printable("\342\204\242", 3));
        assert_se(!utf8_is_printable("\341\204", 2));
        assert_se(utf8_is_printable("ąę", 4));
}

static void test_utf8_is_valid(void) {
        log_info("/* %s */", __func__);

        assert_se(utf8_is_valid("ascii is valid unicode"));
        assert_se(utf8_is_valid("\342\204\242"));
        assert_se(!utf8_is_valid("\341\204"));
}

static void test_ascii_is_valid(void) {
        log_info("/* %s */", __func__);

        assert_se( ascii_is_valid("alsdjf\t\vbarr\nba z"));
        assert_se(!ascii_is_valid("\342\204\242"));
        assert_se(!ascii_is_valid("\341\204"));
}

static void test_ascii_is_valid_n(void) {
        log_info("/* %s */", __func__);

        assert_se( ascii_is_valid_n("alsdjf\t\vbarr\nba z", 17));
        assert_se( ascii_is_valid_n("alsdjf\t\vbarr\nba z", 16));
        assert_se(!ascii_is_valid_n("alsdjf\t\vbarr\nba z", 18));
        assert_se(!ascii_is_valid_n("\342\204\242", 3));
        assert_se(!ascii_is_valid_n("\342\204\242", 2));
        assert_se(!ascii_is_valid_n("\342\204\242", 1));
        assert_se( ascii_is_valid_n("\342\204\242", 0));
}

static void test_utf8_encoded_valid_unichar(void) {
        log_info("/* %s */", __func__);

        assert_se(utf8_encoded_valid_unichar("\342\204\242", 1) == -EINVAL); /* truncated */
        assert_se(utf8_encoded_valid_unichar("\342\204\242", 2) == -EINVAL); /* truncated */
        assert_se(utf8_encoded_valid_unichar("\342\204\242", 3) == 3);
        assert_se(utf8_encoded_valid_unichar("\342\204\242", 4) == 3);
        assert_se(utf8_encoded_valid_unichar("\302\256", 1) == -EINVAL); /* truncated */
        assert_se(utf8_encoded_valid_unichar("\302\256", 2) == 2);
        assert_se(utf8_encoded_valid_unichar("\302\256", 3) == 2);
        assert_se(utf8_encoded_valid_unichar("\302\256", (size_t) -1) == 2);
        assert_se(utf8_encoded_valid_unichar("a", 1) == 1);
        assert_se(utf8_encoded_valid_unichar("a", 2) == 1);
        assert_se(utf8_encoded_valid_unichar("\341\204", 1) == -EINVAL); /* truncated, potentially valid */
        assert_se(utf8_encoded_valid_unichar("\341\204", 2) == -EINVAL); /* truncated, potentially valid */
        assert_se(utf8_encoded_valid_unichar("\341\204", 3) == -EINVAL);
        assert_se(utf8_encoded_valid_unichar("\341\204\341\204", 4) == -EINVAL);
        assert_se(utf8_encoded_valid_unichar("\341\204\341\204", 5) == -EINVAL);
}

static void test_utf8_escape_invalid(void) {
        _cleanup_free_ char *p1, *p2, *p3;

        log_info("/* %s */", __func__);

        p1 = utf8_escape_invalid("goo goo goo");
        puts(p1);
        assert_se(utf8_is_valid(p1));

        p2 = utf8_escape_invalid("\341\204\341\204");
        puts(p2);
        assert_se(utf8_is_valid(p2));

        p3 = utf8_escape_invalid("\341\204");
        puts(p3);
        assert_se(utf8_is_valid(p3));
}

static void test_utf8_escape_non_printable(void) {
        _cleanup_free_ char *p1, *p2, *p3, *p4, *p5, *p6;

        log_info("/* %s */", __func__);

        p1 = utf8_escape_non_printable("goo goo goo");
        puts(p1);
        assert_se(utf8_is_valid(p1));

        p2 = utf8_escape_non_printable("\341\204\341\204");
        puts(p2);
        assert_se(utf8_is_valid(p2));

        p3 = utf8_escape_non_printable("\341\204");
        puts(p3);
        assert_se(utf8_is_valid(p3));

        p4 = utf8_escape_non_printable("ąę\n가너도루\n1234\n\341\204\341\204\n\001 \019\20\a");
        puts(p4);
        assert_se(utf8_is_valid(p4));

        p5 = utf8_escape_non_printable("\001 \019\20\a");
        puts(p5);
        assert_se(utf8_is_valid(p5));

        p6 = utf8_escape_non_printable("\xef\xbf\x30\x13");
        puts(p6);
        assert_se(utf8_is_valid(p6));
}

static void test_utf8_escape_non_printable_full(void) {
        log_info("/* %s */", __func__);

        for (size_t i = 0; i < 20; i++) {
                _cleanup_free_ char *p;

                p = utf8_escape_non_printable_full("goo goo goo", i);
                puts(p);
                assert_se(utf8_is_valid(p));
                assert_se(utf8_console_width(p) <= i);
        }

        for (size_t i = 0; i < 20; i++) {
                _cleanup_free_ char *p;

                p = utf8_escape_non_printable_full("\001 \019\20\a", i);
                puts(p);
                assert_se(utf8_is_valid(p));
                assert_se(utf8_console_width(p) <= i);
        }

        for (size_t i = 0; i < 20; i++) {
                _cleanup_free_ char *p;

                p = utf8_escape_non_printable_full("\xef\xbf\x30\x13", i);
                puts(p);
                assert_se(utf8_is_valid(p));
                assert_se(utf8_console_width(p) <= i);
        }
}

static void test_utf16_to_utf8(void) {
        const char16_t utf16[] = { htole16('a'), htole16(0xd800), htole16('b'), htole16(0xdc00), htole16('c'), htole16(0xd801), htole16(0xdc37) };
        static const char utf8[] = { 'a', 'b', 'c', 0xf0, 0x90, 0x90, 0xb7 };
        _cleanup_free_ char16_t *b = NULL;
        _cleanup_free_ char *a = NULL;

        log_info("/* %s */", __func__);

        /* Convert UTF-16 to UTF-8, filtering embedded bad chars */
        a = utf16_to_utf8(utf16, sizeof(utf16));
        assert_se(a);
        assert_se(memcmp(a, utf8, sizeof(utf8)) == 0);

        /* Convert UTF-8 to UTF-16, and back */
        b = utf8_to_utf16(utf8, sizeof(utf8));
        assert_se(b);

        free(a);
        a = utf16_to_utf8(b, char16_strlen(b) * 2);
        assert_se(a);
        assert_se(strlen(a) == sizeof(utf8));
        assert_se(memcmp(a, utf8, sizeof(utf8)) == 0);
}

static void test_utf8_n_codepoints(void) {
        log_info("/* %s */", __func__);

        assert_se(utf8_n_codepoints("abc") == 3);
        assert_se(utf8_n_codepoints("zażółcić gęślą jaźń") == 19);
        assert_se(utf8_n_codepoints("串") == 1);
        assert_se(utf8_n_codepoints("") == 0);
        assert_se(utf8_n_codepoints("…👊🔪💐…") == 5);
        assert_se(utf8_n_codepoints("\xF1") == (size_t) -1);
}

static void test_utf8_console_width(void) {
        log_info("/* %s */", __func__);

        assert_se(utf8_console_width("abc") == 3);
        assert_se(utf8_console_width("zażółcić gęślą jaźń") == 19);
        assert_se(utf8_console_width("串") == 2);
        assert_se(utf8_console_width("") == 0);
        assert_se(utf8_console_width("…👊🔪💐…") == 8);
        assert_se(utf8_console_width("\xF1") == (size_t) -1);
}

static void test_utf8_to_utf16(void) {
        const char *p;

        log_info("/* %s */", __func__);

        FOREACH_STRING(p,
                       "abc",
                       "zażółcić gęślą jaźń",
                       "串",
                       "",
                       "…👊🔪💐…") {

                _cleanup_free_ char16_t *a = NULL;
                _cleanup_free_ char *b = NULL;

                a = utf8_to_utf16(p, strlen(p));
                assert_se(a);

                b = utf16_to_utf8(a, char16_strlen(a) * 2);
                assert_se(b);
                assert_se(streq(p, b));
        }
}

int main(int argc, char *argv[]) {
        test_utf8_is_valid();
        test_utf8_is_printable();
        test_ascii_is_valid();
        test_ascii_is_valid_n();
        test_utf8_encoded_valid_unichar();
        test_utf8_escape_invalid();
        test_utf8_escape_non_printable();
        test_utf8_escape_non_printable_full();
        test_utf16_to_utf8();
        test_utf8_n_codepoints();
        test_utf8_console_width();
        test_utf8_to_utf16();

        return 0;
}
Commit	Line	Data
53e1b683	1	/* SPDX-License-Identifier: LGPL-2.1+ */
02a36bc9	2
b5efdb8a	3	#include "alloc-util.h"
cf0fbc49	4	#include "string-util.h"
80b0a597	5	#include "strv.h"
02a36bc9 DR	6	#include "utf8.h"
	7	#include "util.h"
	8
7991ac34	9	static void test_utf8_is_printable(void) {
9743846e ZJS	10	log_info("/* %s */", __func__);
9743846e ZJS	11
7991ac34 DR	12	assert_se(utf8_is_printable("ascii is valid\tunicode", 22));
	13	assert_se(utf8_is_printable("\342\204\242", 3));
	14	assert_se(!utf8_is_printable("\341\204", 2));
a7176505	15	assert_se(utf8_is_printable("ąę", 4));
7991ac34 DR	16	}
7991ac34 DR	17
02a36bc9	18	static void test_utf8_is_valid(void) {
9743846e ZJS	19	log_info("/* %s */", __func__);
9743846e ZJS	20
02a36bc9	21	assert_se(utf8_is_valid("ascii is valid unicode"));
8f6ce71f	22	assert_se(utf8_is_valid("\342\204\242"));
02a36bc9 DR	23	assert_se(!utf8_is_valid("\341\204"));
	24	}
	25
e7363c59	26	static void test_ascii_is_valid(void) {
9743846e ZJS	27	log_info("/* %s */", __func__);
9743846e ZJS	28
294a3121	29	assert_se( ascii_is_valid("alsdjf\t\vbarr\nba z"));
e7363c59 DR	30	assert_se(!ascii_is_valid("\342\204\242"));
	31	assert_se(!ascii_is_valid("\341\204"));
	32	}
	33
294a3121	34	static void test_ascii_is_valid_n(void) {
9743846e ZJS	35	log_info("/* %s */", __func__);
9743846e ZJS	36
294a3121 ZJS	37	assert_se( ascii_is_valid_n("alsdjf\t\vbarr\nba z", 17));
	38	assert_se( ascii_is_valid_n("alsdjf\t\vbarr\nba z", 16));
	39	assert_se(!ascii_is_valid_n("alsdjf\t\vbarr\nba z", 18));
	40	assert_se(!ascii_is_valid_n("\342\204\242", 3));
	41	assert_se(!ascii_is_valid_n("\342\204\242", 2));
	42	assert_se(!ascii_is_valid_n("\342\204\242", 1));
	43	assert_se( ascii_is_valid_n("\342\204\242", 0));
	44	}
	45
e7363c59	46	static void test_utf8_encoded_valid_unichar(void) {
9743846e ZJS	47	log_info("/* %s */", __func__);
9743846e ZJS	48
92e068b4 ZJS	49	assert_se(utf8_encoded_valid_unichar("\342\204\242", 1) == -EINVAL); /* truncated */
	50	assert_se(utf8_encoded_valid_unichar("\342\204\242", 2) == -EINVAL); /* truncated */
	51	assert_se(utf8_encoded_valid_unichar("\342\204\242", 3) == 3);
	52	assert_se(utf8_encoded_valid_unichar("\342\204\242", 4) == 3);
	53	assert_se(utf8_encoded_valid_unichar("\302\256", 1) == -EINVAL); /* truncated */
	54	assert_se(utf8_encoded_valid_unichar("\302\256", 2) == 2);
	55	assert_se(utf8_encoded_valid_unichar("\302\256", 3) == 2);
	56	assert_se(utf8_encoded_valid_unichar("\302\256", (size_t) -1) == 2);
	57	assert_se(utf8_encoded_valid_unichar("a", 1) == 1);
	58	assert_se(utf8_encoded_valid_unichar("a", 2) == 1);
	59	assert_se(utf8_encoded_valid_unichar("\341\204", 1) == -EINVAL); /* truncated, potentially valid */
	60	assert_se(utf8_encoded_valid_unichar("\341\204", 2) == -EINVAL); /* truncated, potentially valid */
	61	assert_se(utf8_encoded_valid_unichar("\341\204", 3) == -EINVAL);
	62	assert_se(utf8_encoded_valid_unichar("\341\204\341\204", 4) == -EINVAL);
	63	assert_se(utf8_encoded_valid_unichar("\341\204\341\204", 5) == -EINVAL);
e7363c59 DR	64	}
e7363c59 DR	65
9743846e	66	static void test_utf8_escape_invalid(void) {
550a40ec ZJS	67	_cleanup_free_ char p1, p2, *p3;
550a40ec ZJS	68
9743846e ZJS	69	log_info("/* %s */", __func__);
9743846e ZJS	70
550a40ec ZJS	71	p1 = utf8_escape_invalid("goo goo goo");
	72	puts(p1);
	73	assert_se(utf8_is_valid(p1));
	74
	75	p2 = utf8_escape_invalid("\341\204\341\204");
	76	puts(p2);
	77	assert_se(utf8_is_valid(p2));
	78
	79	p3 = utf8_escape_invalid("\341\204");
	80	puts(p3);
	81	assert_se(utf8_is_valid(p3));
	82	}
	83
9743846e	84	static void test_utf8_escape_non_printable(void) {
3c6d3052	85	_cleanup_free_ char p1, p2, p3, p4, p5, p6;
fec84576	86
9743846e ZJS	87	log_info("/* %s */", __func__);
9743846e ZJS	88
fec84576 WC	89	p1 = utf8_escape_non_printable("goo goo goo");
	90	puts(p1);
	91	assert_se(utf8_is_valid(p1));
	92
	93	p2 = utf8_escape_non_printable("\341\204\341\204");
	94	puts(p2);
	95	assert_se(utf8_is_valid(p2));
	96
	97	p3 = utf8_escape_non_printable("\341\204");
	98	puts(p3);
	99	assert_se(utf8_is_valid(p3));
	100
	101	p4 = utf8_escape_non_printable("ąę\n가너도루\n1234\n\341\204\341\204\n\001 \019\20\a");
	102	puts(p4);
	103	assert_se(utf8_is_valid(p4));
	104
	105	p5 = utf8_escape_non_printable("\001 \019\20\a");
	106	puts(p5);
	107	assert_se(utf8_is_valid(p5));
3c6d3052 LP	108
	109	p6 = utf8_escape_non_printable("\xef\xbf\x30\x13");
	110	puts(p6);
	111	assert_se(utf8_is_valid(p6));
fec84576 WC	112	}
fec84576 WC	113
da88f542 ZJS	114	static void test_utf8_escape_non_printable_full(void) {
	115	log_info("/* %s */", __func__);
	116
	117	for (size_t i = 0; i < 20; i++) {
	118	_cleanup_free_ char *p;
	119
	120	p = utf8_escape_non_printable_full("goo goo goo", i);
	121	puts(p);
	122	assert_se(utf8_is_valid(p));
	123	assert_se(utf8_console_width(p) <= i);
	124	}
	125
	126	for (size_t i = 0; i < 20; i++) {
	127	_cleanup_free_ char *p;
	128
	129	p = utf8_escape_non_printable_full("\001 \019\20\a", i);
	130	puts(p);
	131	assert_se(utf8_is_valid(p));
	132	assert_se(utf8_console_width(p) <= i);
	133	}
	134
	135	for (size_t i = 0; i < 20; i++) {
	136	_cleanup_free_ char *p;
	137
	138	p = utf8_escape_non_printable_full("\xef\xbf\x30\x13", i);
	139	puts(p);
	140	assert_se(utf8_is_valid(p));
	141	assert_se(utf8_console_width(p) <= i);
	142	}
	143	}
	144
04166cb7	145	static void test_utf16_to_utf8(void) {
80b0a597 LP	146	const char16_t utf16[] = { htole16('a'), htole16(0xd800), htole16('b'), htole16(0xdc00), htole16('c'), htole16(0xd801), htole16(0xdc37) };
	147	static const char utf8[] = { 'a', 'b', 'c', 0xf0, 0x90, 0x90, 0xb7 };
	148	_cleanup_free_ char16_t *b = NULL;
	149	_cleanup_free_ char *a = NULL;
04166cb7	150
9743846e ZJS	151	log_info("/* %s */", __func__);
9743846e ZJS	152
80b0a597 LP	153	/* Convert UTF-16 to UTF-8, filtering embedded bad chars */
80b0a597 LP	154	a = utf16_to_utf8(utf16, sizeof(utf16));
04166cb7	155	assert_se(a);
80b0a597 LP	156	assert_se(memcmp(a, utf8, sizeof(utf8)) == 0);
	157
	158	/* Convert UTF-8 to UTF-16, and back */
	159	b = utf8_to_utf16(utf8, sizeof(utf8));
	160	assert_se(b);
04166cb7 TG	161
04166cb7 TG	162	free(a);
80b0a597 LP	163	a = utf16_to_utf8(b, char16_strlen(b) * 2);
	164	assert_se(a);
	165	assert_se(strlen(a) == sizeof(utf8));
	166	assert_se(memcmp(a, utf8, sizeof(utf8)) == 0);
04166cb7 TG	167	}
04166cb7 TG	168
e2cbc803	169	static void test_utf8_n_codepoints(void) {
9743846e ZJS	170	log_info("/* %s */", __func__);
9743846e ZJS	171
e2cbc803 ZJS	172	assert_se(utf8_n_codepoints("abc") == 3);
	173	assert_se(utf8_n_codepoints("zażółcić gęślą jaźń") == 19);
	174	assert_se(utf8_n_codepoints("串") == 1);
	175	assert_se(utf8_n_codepoints("") == 0);
	176	assert_se(utf8_n_codepoints("…👊🔪💐…") == 5);
	177	assert_se(utf8_n_codepoints("\xF1") == (size_t) -1);
	178	}
	179
7c6c2e07	180	static void test_utf8_console_width(void) {
9743846e ZJS	181	log_info("/* %s */", __func__);
9743846e ZJS	182
7c6c2e07 ZJS	183	assert_se(utf8_console_width("abc") == 3);
	184	assert_se(utf8_console_width("zażółcić gęślą jaźń") == 19);
	185	assert_se(utf8_console_width("串") == 2);
	186	assert_se(utf8_console_width("") == 0);
	187	assert_se(utf8_console_width("…👊🔪💐…") == 8);
	188	assert_se(utf8_console_width("\xF1") == (size_t) -1);
	189	}
	190
80b0a597 LP	191	static void test_utf8_to_utf16(void) {
	192	const char *p;
	193
9743846e ZJS	194	log_info("/* %s */", __func__);
9743846e ZJS	195
80b0a597 LP	196	FOREACH_STRING(p,
	197	"abc",
	198	"zażółcić gęślą jaźń",
	199	"串",
	200	"",
	201	"…👊🔪💐…") {
	202
	203	_cleanup_free_ char16_t *a = NULL;
	204	_cleanup_free_ char *b = NULL;
	205
	206	a = utf8_to_utf16(p, strlen(p));
	207	assert_se(a);
	208
	209	b = utf16_to_utf8(a, char16_strlen(a) * 2);
	210	assert_se(b);
	211	assert_se(streq(p, b));
	212	}
	213	}
	214
02a36bc9 DR	215	int main(int argc, char *argv[]) {
02a36bc9 DR	216	test_utf8_is_valid();
7991ac34	217	test_utf8_is_printable();
e7363c59	218	test_ascii_is_valid();
294a3121	219	test_ascii_is_valid_n();
e7363c59	220	test_utf8_encoded_valid_unichar();
9743846e ZJS	221	test_utf8_escape_invalid();
9743846e ZJS	222	test_utf8_escape_non_printable();
da88f542	223	test_utf8_escape_non_printable_full();
04166cb7	224	test_utf16_to_utf8();
e2cbc803	225	test_utf8_n_codepoints();
7c6c2e07	226	test_utf8_console_width();
80b0a597	227	test_utf8_to_utf16();
7991ac34 DR	228
7991ac34 DR	229	return 0;
02a36bc9	230	}