test/unicode_ut.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Unit tests for Unicode functions
   4  *
   5  * Copyright (c) 2018 Heinrich Schuchardt <xypron.glpk@gmx.de>
   6  */
   7
   8 #include <common.h>
   9 #include <charset.h>
  10 #include <command.h>
  11 #include <errno.h>
  12 #include <log.h>
  13 #include <malloc.h>
  14 #include <test/test.h>
  15 #include <test/suites.h>
  16 #include <test/ut.h>
  17
  18 /* Linker list entry for a Unicode test */
  19 #define UNICODE_TEST(_name) UNIT_TEST(_name, 0, unicode_test)
  20
  21 /* Constants c1-c4 and d1-d4 encode the same letters */
  22
  23 /* Six characters translating to one utf-8 byte each. */
  24 static const u16 c1[] = {0x55, 0x2d, 0x42, 0x6f, 0x6f, 0x74, 0x00};
  25 /* One character translating to two utf-8 bytes */
  26 static const u16 c2[] = {0x6b, 0x61, 0x66, 0x62, 0xe1, 0x74, 0x75, 0x72, 0x00};
  27 /* Three characters translating to three utf-8 bytes each */
  28 static const u16 c3[] = {0x6f5c, 0x6c34, 0x8266, 0x00};
  29 /* Three letters translating to four utf-8 bytes each */
  30 static const u16 c4[] = {0xd801, 0xdc8d, 0xd801, 0xdc96, 0xd801, 0xdc87,
  31                          0x0000};
  32
  33 /* Illegal utf-16 strings */
  34 static const u16 i1[] = {0x69, 0x31, 0xdc87, 0x6c, 0x00};
  35 static const u16 i2[] = {0x69, 0x32, 0xd801, 0xd801, 0x6c, 0x00};
  36 static const u16 i3[] = {0x69, 0x33, 0xd801, 0x00};
  37
  38 /* Six characters translating to one utf-16 word each. */
  39 static const char d1[] = {0x55, 0x2d, 0x42, 0x6f, 0x6f, 0x74, 0x00};
  40 /* Eight characters translating to one utf-16 word each */
  41 static const char d2[] = {0x6b, 0x61, 0x66, 0x62, 0xc3, 0xa1, 0x74, 0x75,
  42                           0x72, 0x00};
  43 /* Three characters translating to one utf-16 word each */
  44 static const char d3[] = {0xe6, 0xbd, 0x9c, 0xe6, 0xb0, 0xb4, 0xe8, 0x89,
  45                           0xa6, 0x00};
  46 /* Three letters translating to two utf-16 word each */
  47 static const char d4[] = {0xf0, 0x90, 0x92, 0x8d, 0xf0, 0x90, 0x92, 0x96,
  48                           0xf0, 0x90, 0x92, 0x87, 0x00};
  49
  50 /* Illegal utf-8 strings */
  51 static const char j1[] = {0x6a, 0x31, 0xa1, 0x6c, 0x00};
  52 static const char j2[] = {0x6a, 0x32, 0xc3, 0xc3, 0x6c, 0x00};
  53 static const char j3[] = {0x6a, 0x33, 0xf0, 0x90, 0xf0, 0x00};
  54
  55 static int unicode_test_u16_strlen(struct unit_test_state *uts)
  56 {
  57         ut_asserteq(6, u16_strlen(c1));
  58         ut_asserteq(8, u16_strlen(c2));
  59         ut_asserteq(3, u16_strlen(c3));
  60         ut_asserteq(6, u16_strlen(c4));
  61         return 0;
  62 }
  63 UNICODE_TEST(unicode_test_u16_strlen);
  64
  65 static int unicode_test_u16_strdup(struct unit_test_state *uts)
  66 {
  67         u16 *copy = u16_strdup(c4);
  68
  69         ut_assert(copy != c4);
  70         ut_assert(!memcmp(copy, c4, sizeof(c4)));
  71         free(copy);
  72         return 0;
  73 }
  74 UNICODE_TEST(unicode_test_u16_strdup);
  75
  76 static int unicode_test_u16_strcpy(struct unit_test_state *uts)
  77 {
  78         u16 *r;
  79         u16 copy[10];
  80
  81         r = u16_strcpy(copy, c1);
  82         ut_assert(r == copy);
  83         ut_assert(!memcmp(copy, c1, sizeof(c1)));
  84         return 0;
  85 }
  86 UNICODE_TEST(unicode_test_u16_strcpy);
  87
  88 /* U-Boot uses UTF-16 strings in the EFI context only. */
  89 #if CONFIG_IS_ENABLED(EFI_LOADER) && !defined(API_BUILD)
  90 static int unicode_test_string16(struct unit_test_state *uts)
  91 {
  92         char buf[20];
  93
  94         /* Test length and precision */
  95         memset(buf, 0xff, sizeof(buf));
  96         sprintf(buf, "%8.6ls", c2);
  97         ut_asserteq(' ', buf[1]);
  98         ut_assert(!strncmp(&buf[2], d2, 7));
  99         ut_assert(!buf[9]);
 100
 101         memset(buf, 0xff, sizeof(buf));
 102         sprintf(buf, "%8.6ls", c4);
 103         ut_asserteq(' ', buf[4]);
 104         ut_assert(!strncmp(&buf[5], d4, 12));
 105         ut_assert(!buf[17]);
 106
 107         memset(buf, 0xff, sizeof(buf));
 108         sprintf(buf, "%-8.2ls", c4);
 109         ut_asserteq(' ', buf[8]);
 110         ut_assert(!strncmp(buf, d4, 8));
 111         ut_assert(!buf[14]);
 112
 113         /* Test handling of illegal utf-16 sequences */
 114         memset(buf, 0xff, sizeof(buf));
 115         sprintf(buf, "%ls", i1);
 116         ut_asserteq_str("i1?l", buf);
 117
 118         memset(buf, 0xff, sizeof(buf));
 119         sprintf(buf, "%ls", i2);
 120         ut_asserteq_str("i2?l", buf);
 121
 122         memset(buf, 0xff, sizeof(buf));
 123         sprintf(buf, "%ls", i3);
 124         ut_asserteq_str("i3?", buf);
 125
 126         return 0;
 127 }
 128 UNICODE_TEST(unicode_test_string16);
 129 #endif
 130
 131 static int unicode_test_utf8_get(struct unit_test_state *uts)
 132 {
 133         const char *s;
 134         s32 code;
 135         int i;
 136
 137         /* Check characters less than 0x800 */
 138         s = d2;
 139         for (i = 0; i < 8; ++i) {
 140                 code = utf8_get((const char **)&s);
 141                 /* c2 is the utf-8 encoding of d2 */
 142                 ut_asserteq(c2[i], code);
 143                 if (!code)
 144                         break;
 145         }
 146         ut_asserteq_ptr(s, d2 + 9)
 147
 148         /* Check characters less than 0x10000 */
 149         s = d3;
 150         for (i = 0; i < 4; ++i) {
 151                 code = utf8_get((const char **)&s);
 152                 /* c3 is the utf-8 encoding of d3 */
 153                 ut_asserteq(c3[i], code);
 154                 if (!code)
 155                         break;
 156         }
 157         ut_asserteq_ptr(s, d3 + 9)
 158
 159         /* Check character greater 0xffff */
 160         s = d4;
 161         code = utf8_get((const char **)&s);
 162         ut_asserteq(0x0001048d, code);
 163         ut_asserteq_ptr(s, d4 + 4);
 164
 165         return 0;
 166 }
 167 UNICODE_TEST(unicode_test_utf8_get);
 168
 169 static int unicode_test_utf8_put(struct unit_test_state *uts)
 170 {
 171         char buffer[8] = { 0, };
 172         char *pos;
 173
 174         /* Commercial at, translates to one character */
 175         pos = buffer;
 176         ut_assert(!utf8_put('@', &pos))
 177         ut_asserteq(1, pos - buffer);
 178         ut_asserteq('@', buffer[0]);
 179         ut_assert(!buffer[1]);
 180
 181         /* Latin letter G with acute, translates to two charactes */
 182         pos = buffer;
 183         ut_assert(!utf8_put(0x1f4, &pos));
 184         ut_asserteq(2, pos - buffer);
 185         ut_asserteq_str("\xc7\xb4", buffer);
 186
 187         /* Tagalog letter i, translates to three characters */
 188         pos = buffer;
 189         ut_assert(!utf8_put(0x1701, &pos));
 190         ut_asserteq(3, pos - buffer);
 191         ut_asserteq_str("\xe1\x9c\x81", buffer);
 192
 193         /* Hamster face, translates to four characters */
 194         pos = buffer;
 195         ut_assert(!utf8_put(0x1f439, &pos));
 196         ut_asserteq(4, pos - buffer);
 197         ut_asserteq_str("\xf0\x9f\x90\xb9", buffer);
 198
 199         /* Illegal code */
 200         pos = buffer;
 201         ut_asserteq(-1, utf8_put(0xd888, &pos));
 202
 203         return 0;
 204 }
 205 UNICODE_TEST(unicode_test_utf8_put);
 206
 207 static int unicode_test_utf8_utf16_strlen(struct unit_test_state *uts)
 208 {
 209         ut_asserteq(6, utf8_utf16_strlen(d1));
 210         ut_asserteq(8, utf8_utf16_strlen(d2));
 211         ut_asserteq(3, utf8_utf16_strlen(d3));
 212         ut_asserteq(6, utf8_utf16_strlen(d4));
 213
 214         /* illegal utf-8 sequences */
 215         ut_asserteq(4, utf8_utf16_strlen(j1));
 216         ut_asserteq(4, utf8_utf16_strlen(j2));
 217         ut_asserteq(3, utf8_utf16_strlen(j3));
 218
 219         return 0;
 220 }
 221 UNICODE_TEST(unicode_test_utf8_utf16_strlen);
 222
 223 static int unicode_test_utf8_utf16_strnlen(struct unit_test_state *uts)
 224 {
 225         ut_asserteq(3, utf8_utf16_strnlen(d1, 3));
 226         ut_asserteq(6, utf8_utf16_strnlen(d1, 13));
 227         ut_asserteq(6, utf8_utf16_strnlen(d2, 6));
 228         ut_asserteq(2, utf8_utf16_strnlen(d3, 2));
 229         ut_asserteq(4, utf8_utf16_strnlen(d4, 2));
 230         ut_asserteq(6, utf8_utf16_strnlen(d4, 3));
 231
 232         /* illegal utf-8 sequences */
 233         ut_asserteq(4, utf8_utf16_strnlen(j1, 16));
 234         ut_asserteq(4, utf8_utf16_strnlen(j2, 16));
 235         ut_asserteq(3, utf8_utf16_strnlen(j3, 16));
 236
 237         return 0;
 238 }
 239 UNICODE_TEST(unicode_test_utf8_utf16_strnlen);
 240
 241 /**
 242  * ut_u16_strcmp() - Compare to u16 strings.
 243  *
 244  * @a1:         first string
 245  * @a2:         second string
 246  * @count:      number of u16 to compare
 247  * Return:      -1 if a1 < a2, 0 if a1 == a2, 1 if a1 > a2
 248  */
 249 static int unicode_test_u16_strcmp(const u16 *a1, const u16 *a2, size_t count)
 250 {
 251         for (; (*a1 || *a2) && count; ++a1, ++a2, --count) {
 252                 if (*a1 < *a2)
 253                         return -1;
 254                 if (*a1 > *a2)
 255                         return 1;
 256         }
 257         return 0;
 258 }
 259
 260 static int unicode_test_utf8_utf16_strcpy(struct unit_test_state *uts)
 261 {
 262         u16 buf[16];
 263         u16 *pos;
 264
 265         pos = buf;
 266         utf8_utf16_strcpy(&pos, d1);
 267         ut_asserteq(6, pos - buf);
 268         ut_assert(!unicode_test_u16_strcmp(buf, c1, SIZE_MAX));
 269
 270         pos = buf;
 271         utf8_utf16_strcpy(&pos, d2);
 272         ut_asserteq(8, pos - buf);
 273         ut_assert(!unicode_test_u16_strcmp(buf, c2, SIZE_MAX));
 274
 275         pos = buf;
 276         utf8_utf16_strcpy(&pos, d3);
 277         ut_asserteq(3, pos - buf);
 278         ut_assert(!unicode_test_u16_strcmp(buf, c3, SIZE_MAX));
 279
 280         pos = buf;
 281         utf8_utf16_strcpy(&pos, d4);
 282         ut_asserteq(6, pos - buf);
 283         ut_assert(!unicode_test_u16_strcmp(buf, c4, SIZE_MAX));
 284
 285         /* Illegal utf-8 strings */
 286         pos = buf;
 287         utf8_utf16_strcpy(&pos, j1);
 288         ut_asserteq(4, pos - buf);
 289         ut_assert(!unicode_test_u16_strcmp(buf, L"j1?l", SIZE_MAX));
 290
 291         pos = buf;
 292         utf8_utf16_strcpy(&pos, j2);
 293         ut_asserteq(4, pos - buf);
 294         ut_assert(!unicode_test_u16_strcmp(buf, L"j2?l", SIZE_MAX));
 295
 296         pos = buf;
 297         utf8_utf16_strcpy(&pos, j3);
 298         ut_asserteq(3, pos - buf);
 299         ut_assert(!unicode_test_u16_strcmp(buf, L"j3?", SIZE_MAX));
 300
 301         return 0;
 302 }
 303 UNICODE_TEST(unicode_test_utf8_utf16_strcpy);
 304
 305 static int unicode_test_utf8_utf16_strncpy(struct unit_test_state *uts)
 306 {
 307         u16 buf[16];
 308         u16 *pos;
 309
 310         pos = buf;
 311         memset(buf, 0, sizeof(buf));
 312         utf8_utf16_strncpy(&pos, d1, 4);
 313         ut_asserteq(4, pos - buf);
 314         ut_assert(!buf[4]);
 315         ut_assert(!unicode_test_u16_strcmp(buf, c1, 4));
 316
 317         pos = buf;
 318         memset(buf, 0, sizeof(buf));
 319         utf8_utf16_strncpy(&pos, d2, 10);
 320         ut_asserteq(8, pos - buf);
 321         ut_assert(buf[4]);
 322         ut_assert(!unicode_test_u16_strcmp(buf, c2, SIZE_MAX));
 323
 324         pos = buf;
 325         memset(buf, 0, sizeof(buf));
 326         utf8_utf16_strncpy(&pos, d3, 2);
 327         ut_asserteq(2, pos - buf);
 328         ut_assert(!buf[2]);
 329         ut_assert(!unicode_test_u16_strcmp(buf, c3, 2));
 330
 331         pos = buf;
 332         memset(buf, 0, sizeof(buf));
 333         utf8_utf16_strncpy(&pos, d4, 2);
 334         ut_asserteq(4, pos - buf);
 335         ut_assert(!buf[4]);
 336         ut_assert(!unicode_test_u16_strcmp(buf, c4, 4));
 337
 338         pos = buf;
 339         memset(buf, 0, sizeof(buf));
 340         utf8_utf16_strncpy(&pos, d4, 10);
 341         ut_asserteq(6, pos - buf);
 342         ut_assert(buf[5]);
 343         ut_assert(!unicode_test_u16_strcmp(buf, c4, SIZE_MAX));
 344
 345         return 0;
 346 }
 347 UNICODE_TEST(unicode_test_utf8_utf16_strncpy);
 348
 349 static int unicode_test_utf16_get(struct unit_test_state *uts)
 350 {
 351         const u16 *s;
 352         s32 code;
 353         int i;
 354
 355         /* Check characters less than 0x10000 */
 356         s = c2;
 357         for (i = 0; i < 9; ++i) {
 358                 code = utf16_get((const u16 **)&s);
 359                 ut_asserteq(c2[i], code);
 360                 if (!code)
 361                         break;
 362         }
 363         ut_asserteq_ptr(c2 + 8, s);
 364
 365         /* Check character greater 0xffff */
 366         s = c4;
 367         code = utf16_get((const u16 **)&s);
 368         ut_asserteq(0x0001048d, code);
 369         ut_asserteq_ptr(c4 + 2, s);
 370
 371         return 0;
 372 }
 373 UNICODE_TEST(unicode_test_utf16_get);
 374
 375 static int unicode_test_utf16_put(struct unit_test_state *uts)
 376 {
 377         u16 buffer[4] = { 0, };
 378         u16 *pos;
 379
 380         /* Commercial at, translates to one word */
 381         pos = buffer;
 382         ut_assert(!utf16_put('@', &pos));
 383         ut_asserteq(1, pos - buffer);
 384         ut_asserteq((u16)'@', buffer[0]);
 385         ut_assert(!buffer[1]);
 386
 387         /* Hamster face, translates to two words */
 388         pos = buffer;
 389         ut_assert(!utf16_put(0x1f439, &pos));
 390         ut_asserteq(2, pos - buffer);
 391         ut_asserteq((u16)0xd83d, buffer[0]);
 392         ut_asserteq((u16)0xdc39, buffer[1]);
 393         ut_assert(!buffer[2]);
 394
 395         /* Illegal code */
 396         pos = buffer;
 397         ut_asserteq(-1, utf16_put(0xd888, &pos));
 398
 399         return 0;
 400 }
 401 UNICODE_TEST(unicode_test_utf16_put);
 402
 403 static int unicode_test_utf16_strnlen(struct unit_test_state *uts)
 404 {
 405         ut_asserteq(3, utf16_strnlen(c1, 3));
 406         ut_asserteq(6, utf16_strnlen(c1, 13));
 407         ut_asserteq(6, utf16_strnlen(c2, 6));
 408         ut_asserteq(2, utf16_strnlen(c3, 2));
 409         ut_asserteq(2, utf16_strnlen(c4, 2));
 410         ut_asserteq(3, utf16_strnlen(c4, 3));
 411
 412         /* illegal utf-16 word sequences */
 413         ut_asserteq(4, utf16_strnlen(i1, 16));
 414         ut_asserteq(4, utf16_strnlen(i2, 16));
 415         ut_asserteq(3, utf16_strnlen(i3, 16));
 416
 417         return 0;
 418 }
 419 UNICODE_TEST(unicode_test_utf16_strnlen);
 420
 421 static int unicode_test_utf16_utf8_strlen(struct unit_test_state *uts)
 422 {
 423         ut_asserteq(6, utf16_utf8_strlen(c1));
 424         ut_asserteq(9, utf16_utf8_strlen(c2));
 425         ut_asserteq(9, utf16_utf8_strlen(c3));
 426         ut_asserteq(12, utf16_utf8_strlen(c4));
 427
 428         /* illegal utf-16 word sequences */
 429         ut_asserteq(4, utf16_utf8_strlen(i1));
 430         ut_asserteq(4, utf16_utf8_strlen(i2));
 431         ut_asserteq(3, utf16_utf8_strlen(i3));
 432
 433         return 0;
 434 }
 435 UNICODE_TEST(unicode_test_utf16_utf8_strlen);
 436
 437 static int unicode_test_utf16_utf8_strnlen(struct unit_test_state *uts)
 438 {
 439         ut_asserteq(3, utf16_utf8_strnlen(c1, 3));
 440         ut_asserteq(6, utf16_utf8_strnlen(c1, 13));
 441         ut_asserteq(7, utf16_utf8_strnlen(c2, 6));
 442         ut_asserteq(6, utf16_utf8_strnlen(c3, 2));
 443         ut_asserteq(8, utf16_utf8_strnlen(c4, 2));
 444         ut_asserteq(12, utf16_utf8_strnlen(c4, 3));
 445         return 0;
 446 }
 447 UNICODE_TEST(unicode_test_utf16_utf8_strnlen);
 448
 449 static int unicode_test_utf16_utf8_strcpy(struct unit_test_state *uts)
 450 {
 451         char buf[16];
 452         char *pos;
 453
 454         pos = buf;
 455         utf16_utf8_strcpy(&pos, c1);
 456         ut_asserteq(6, pos - buf);
 457         ut_asserteq_str(d1, buf);
 458
 459         pos = buf;
 460         utf16_utf8_strcpy(&pos, c2);
 461         ut_asserteq(9, pos - buf);
 462         ut_asserteq_str(d2, buf);
 463
 464         pos = buf;
 465         utf16_utf8_strcpy(&pos, c3);
 466         ut_asserteq(9, pos - buf);
 467         ut_asserteq_str(d3, buf);
 468
 469         pos = buf;
 470         utf16_utf8_strcpy(&pos, c4);
 471         ut_asserteq(12, pos - buf);
 472         ut_asserteq_str(d4, buf);
 473
 474         /* Illegal utf-16 strings */
 475         pos = buf;
 476         utf16_utf8_strcpy(&pos, i1);
 477         ut_asserteq(4, pos - buf);
 478         ut_asserteq_str("i1?l", buf);
 479
 480         pos = buf;
 481         utf16_utf8_strcpy(&pos, i2);
 482         ut_asserteq(4, pos - buf);
 483         ut_asserteq_str("i2?l", buf);
 484
 485         pos = buf;
 486         utf16_utf8_strcpy(&pos, i3);
 487         ut_asserteq(3, pos - buf);
 488         ut_asserteq_str("i3?", buf);
 489
 490         return 0;
 491 }
 492 UNICODE_TEST(unicode_test_utf16_utf8_strcpy);
 493
 494 static int unicode_test_utf16_utf8_strncpy(struct unit_test_state *uts)
 495 {
 496         char buf[16];
 497         char *pos;
 498
 499         pos = buf;
 500         memset(buf, 0, sizeof(buf));
 501         utf16_utf8_strncpy(&pos, c1, 4);
 502         ut_asserteq(4, pos - buf);
 503         ut_assert(!buf[4]);
 504         ut_assert(!strncmp(buf, d1, 4));
 505
 506         pos = buf;
 507         memset(buf, 0, sizeof(buf));
 508         utf16_utf8_strncpy(&pos, c2, 10);
 509         ut_asserteq(9, pos - buf);
 510         ut_assert(buf[4]);
 511         ut_assert(!strncmp(buf, d2, SIZE_MAX));
 512
 513         pos = buf;
 514         memset(buf, 0, sizeof(buf));
 515         utf16_utf8_strncpy(&pos, c3, 2);
 516         ut_asserteq(6, pos - buf);
 517         ut_assert(!buf[6]);
 518         ut_assert(!strncmp(buf, d3, 6));
 519
 520         pos = buf;
 521         memset(buf, 0, sizeof(buf));
 522         utf16_utf8_strncpy(&pos, c4, 2);
 523         ut_asserteq(8, pos - buf);
 524         ut_assert(!buf[8]);
 525         ut_assert(!strncmp(buf, d4, 8));
 526
 527         pos = buf;
 528         memset(buf, 0, sizeof(buf));
 529         utf16_utf8_strncpy(&pos, c4, 10);
 530         ut_asserteq(12, pos - buf);
 531         ut_assert(buf[5]);
 532         ut_assert(!strncmp(buf, d4, SIZE_MAX));
 533
 534         return 0;
 535 }
 536 UNICODE_TEST(unicode_test_utf16_utf8_strncpy);
 537
 538 static int unicode_test_utf_to_lower(struct unit_test_state *uts)
 539 {
 540         ut_asserteq('@', utf_to_lower('@'));
 541         ut_asserteq('a', utf_to_lower('A'));
 542         ut_asserteq('z', utf_to_lower('Z'));
 543         ut_asserteq('[', utf_to_lower('['));
 544         ut_asserteq('m', utf_to_lower('m'));
 545         /* Latin letter O with diaresis (umlaut) */
 546         ut_asserteq(0x00f6, utf_to_lower(0x00d6));
 547 #ifdef CONFIG_EFI_UNICODE_CAPITALIZATION
 548         /* Cyrillic letter I*/
 549         ut_asserteq(0x0438, utf_to_lower(0x0418));
 550 #endif
 551         return 0;
 552 }
 553 UNICODE_TEST(unicode_test_utf_to_lower);
 554
 555 static int unicode_test_utf_to_upper(struct unit_test_state *uts)
 556 {
 557         ut_asserteq('`', utf_to_upper('`'));
 558         ut_asserteq('A', utf_to_upper('a'));
 559         ut_asserteq('Z', utf_to_upper('z'));
 560         ut_asserteq('{', utf_to_upper('{'));
 561         ut_asserteq('M', utf_to_upper('M'));
 562         /* Latin letter O with diaresis (umlaut) */
 563         ut_asserteq(0x00d6, utf_to_upper(0x00f6));
 564 #ifdef CONFIG_EFI_UNICODE_CAPITALIZATION
 565         /* Cyrillic letter I */
 566         ut_asserteq(0x0418, utf_to_upper(0x0438));
 567 #endif
 568         return 0;
 569 }
 570 UNICODE_TEST(unicode_test_utf_to_upper);
 571
 572 static int unicode_test_u16_strncmp(struct unit_test_state *uts)
 573 {
 574         ut_assert(u16_strncmp(L"abc", L"abc", 3) == 0);
 575         ut_assert(u16_strncmp(L"abcdef", L"abcghi", 3) == 0);
 576         ut_assert(u16_strncmp(L"abcdef", L"abcghi", 6) < 0);
 577         ut_assert(u16_strncmp(L"abcghi", L"abcdef", 6) > 0);
 578         ut_assert(u16_strcmp(L"abc", L"abc") == 0);
 579         ut_assert(u16_strcmp(L"abcdef", L"deghi") < 0);
 580         ut_assert(u16_strcmp(L"deghi", L"abcdef") > 0);
 581         return 0;
 582 }
 583 UNICODE_TEST(unicode_test_u16_strncmp);
 584
 585 static int unicode_test_u16_strsize(struct unit_test_state *uts)
 586 {
 587         ut_asserteq_64(u16_strsize(c1), 14);
 588         ut_asserteq_64(u16_strsize(c2), 18);
 589         ut_asserteq_64(u16_strsize(c3), 8);
 590         ut_asserteq_64(u16_strsize(c4), 14);
 591         return 0;
 592 }
 593 UNICODE_TEST(unicode_test_u16_strsize);
 594
 595 int do_ut_unicode(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 596 {
 597         struct unit_test *tests = ll_entry_start(struct unit_test, unicode_test);
 598         const int n_ents = ll_entry_count(struct unit_test, unicode_test);
 599
 600         return cmd_ut_category("Unicode", "unicode_test_",
 601                                tests, n_ents, argc, argv);
 602 }