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 <efi_loader.h>
12 #include <errno.h>
13 #include <log.h>
14 #include <malloc.h>
15 #include <test/test.h>
16 #include <test/suites.h>
17 #include <test/ut.h>
18 
19 /* Linker list entry for a Unicode test */
20 #define UNICODE_TEST(_name) UNIT_TEST(_name, 0, unicode_test)
21 
22 /* Constants c1-c4 and d1-d4 encode the same letters */
23 
24 /* Six characters translating to one utf-8 byte each. */
25 static const u16 c1[] = {0x55, 0x2d, 0x42, 0x6f, 0x6f, 0x74, 0x00};
26 /* One character translating to two utf-8 bytes */
27 static const u16 c2[] = {0x6b, 0x61, 0x66, 0x62, 0xe1, 0x74, 0x75, 0x72, 0x00};
28 /* Three characters translating to three utf-8 bytes each */
29 static const u16 c3[] = {0x6f5c, 0x6c34, 0x8266, 0x00};
30 /* Three letters translating to four utf-8 bytes each */
31 static const u16 c4[] = {0xd801, 0xdc8d, 0xd801, 0xdc96, 0xd801, 0xdc87,
32 			 0x0000};
33 
34 /* Illegal utf-16 strings */
35 static const u16 i1[] = {0x69, 0x31, 0xdc87, 0x6c, 0x00};
36 static const u16 i2[] = {0x69, 0x32, 0xd801, 0xd801, 0x6c, 0x00};
37 static const u16 i3[] = {0x69, 0x33, 0xd801, 0x00};
38 
39 /* Six characters translating to one utf-16 word each. */
40 static const char d1[] = {0x55, 0x2d, 0x42, 0x6f, 0x6f, 0x74, 0x00};
41 /* Eight characters translating to one utf-16 word each */
42 static const char d2[] = {0x6b, 0x61, 0x66, 0x62, 0xc3, 0xa1, 0x74, 0x75,
43 			  0x72, 0x00};
44 /* Three characters translating to one utf-16 word each */
45 static const char d3[] = {0xe6, 0xbd, 0x9c, 0xe6, 0xb0, 0xb4, 0xe8, 0x89,
46 			  0xa6, 0x00};
47 /* Three letters translating to two utf-16 word each */
48 static const char d4[] = {0xf0, 0x90, 0x92, 0x8d, 0xf0, 0x90, 0x92, 0x96,
49 			  0xf0, 0x90, 0x92, 0x87, 0x00};
50 /* Letter not in code page 437 */
51 static const char d5[] = {0xCE, 0x92, 0x20, 0x69, 0x73, 0x20, 0x6E, 0x6F,
52 			  0x74, 0x20, 0x42, 0x00};
53 
54 /* Illegal utf-8 strings */
55 static const char j1[] = {0x6a, 0x31, 0xa1, 0x6c, 0x00};
56 static const char j2[] = {0x6a, 0x32, 0xc3, 0xc3, 0x6c, 0x00};
57 static const char j3[] = {0x6a, 0x33, 0xf0, 0x90, 0xf0, 0x00};
58 static const char j4[] = {0xa1, 0x00};
59 
unicode_test_u16_strlen(struct unit_test_state * uts)60 static int unicode_test_u16_strlen(struct unit_test_state *uts)
61 {
62 	ut_asserteq(6, u16_strlen(c1));
63 	ut_asserteq(8, u16_strlen(c2));
64 	ut_asserteq(3, u16_strlen(c3));
65 	ut_asserteq(6, u16_strlen(c4));
66 	return 0;
67 }
68 UNICODE_TEST(unicode_test_u16_strlen);
69 
unicode_test_u16_strdup(struct unit_test_state * uts)70 static int unicode_test_u16_strdup(struct unit_test_state *uts)
71 {
72 	u16 *copy = u16_strdup(c4);
73 
74 	ut_assert(copy != c4);
75 	ut_asserteq_mem(copy, c4, sizeof(c4));
76 	free(copy);
77 
78 	return 0;
79 }
80 UNICODE_TEST(unicode_test_u16_strdup);
81 
unicode_test_u16_strcpy(struct unit_test_state * uts)82 static int unicode_test_u16_strcpy(struct unit_test_state *uts)
83 {
84 	u16 *r;
85 	u16 copy[10];
86 
87 	r = u16_strcpy(copy, c1);
88 	ut_assert(r == copy);
89 	ut_asserteq_mem(copy, c1, sizeof(c1));
90 
91 	return 0;
92 }
93 UNICODE_TEST(unicode_test_u16_strcpy);
94 
95 /* U-Boot uses UTF-16 strings in the EFI context only. */
96 #if CONFIG_IS_ENABLED(EFI_LOADER) && !defined(API_BUILD)
unicode_test_string16(struct unit_test_state * uts)97 static int unicode_test_string16(struct unit_test_state *uts)
98 {
99 	char buf[20];
100 
101 	/* Test length and precision */
102 	memset(buf, 0xff, sizeof(buf));
103 	sprintf(buf, "%8.6ls", c2);
104 	ut_asserteq(' ', buf[1]);
105 	ut_assert(!strncmp(&buf[2], d2, 7));
106 	ut_assert(!buf[9]);
107 
108 	memset(buf, 0xff, sizeof(buf));
109 	sprintf(buf, "%8.6ls", c4);
110 	ut_asserteq(' ', buf[4]);
111 	ut_assert(!strncmp(&buf[5], d4, 12));
112 	ut_assert(!buf[17]);
113 
114 	memset(buf, 0xff, sizeof(buf));
115 	sprintf(buf, "%-8.2ls", c4);
116 	ut_asserteq(' ', buf[8]);
117 	ut_assert(!strncmp(buf, d4, 8));
118 	ut_assert(!buf[14]);
119 
120 	/* Test handling of illegal utf-16 sequences */
121 	memset(buf, 0xff, sizeof(buf));
122 	sprintf(buf, "%ls", i1);
123 	ut_asserteq_str("i1?l", buf);
124 
125 	memset(buf, 0xff, sizeof(buf));
126 	sprintf(buf, "%ls", i2);
127 	ut_asserteq_str("i2?l", buf);
128 
129 	memset(buf, 0xff, sizeof(buf));
130 	sprintf(buf, "%ls", i3);
131 	ut_asserteq_str("i3?", buf);
132 
133 	return 0;
134 }
135 UNICODE_TEST(unicode_test_string16);
136 #endif
137 
unicode_test_utf8_get(struct unit_test_state * uts)138 static int unicode_test_utf8_get(struct unit_test_state *uts)
139 {
140 	const char *s;
141 	s32 code;
142 	int i;
143 
144 	/* Check characters less than 0x800 */
145 	s = d2;
146 	for (i = 0; i < 8; ++i) {
147 		code = utf8_get((const char **)&s);
148 		/* c2 is the utf-8 encoding of d2 */
149 		ut_asserteq(c2[i], code);
150 		if (!code)
151 			break;
152 	}
153 	ut_asserteq_ptr(s, d2 + 9)
154 
155 	/* Check characters less than 0x10000 */
156 	s = d3;
157 	for (i = 0; i < 4; ++i) {
158 		code = utf8_get((const char **)&s);
159 		/* c3 is the utf-8 encoding of d3 */
160 		ut_asserteq(c3[i], code);
161 		if (!code)
162 			break;
163 	}
164 	ut_asserteq_ptr(s, d3 + 9)
165 
166 	/* Check character greater 0xffff */
167 	s = d4;
168 	code = utf8_get((const char **)&s);
169 	ut_asserteq(0x0001048d, code);
170 	ut_asserteq_ptr(s, d4 + 4);
171 
172 	/* Check illegal character */
173 	s = j4;
174 	code = utf8_get((const char **)&s);
175 	ut_asserteq(-1, code);
176 	ut_asserteq_ptr(j4 + 1, s);
177 
178 	return 0;
179 }
180 UNICODE_TEST(unicode_test_utf8_get);
181 
unicode_test_utf8_put(struct unit_test_state * uts)182 static int unicode_test_utf8_put(struct unit_test_state *uts)
183 {
184 	char buffer[8] = { 0, };
185 	char *pos;
186 
187 	/* Commercial at, translates to one character */
188 	pos = buffer;
189 	ut_assert(!utf8_put('@', &pos))
190 	ut_asserteq(1, pos - buffer);
191 	ut_asserteq('@', buffer[0]);
192 	ut_assert(!buffer[1]);
193 
194 	/* Latin letter G with acute, translates to two charactes */
195 	pos = buffer;
196 	ut_assert(!utf8_put(0x1f4, &pos));
197 	ut_asserteq(2, pos - buffer);
198 	ut_asserteq_str("\xc7\xb4", buffer);
199 
200 	/* Tagalog letter i, translates to three characters */
201 	pos = buffer;
202 	ut_assert(!utf8_put(0x1701, &pos));
203 	ut_asserteq(3, pos - buffer);
204 	ut_asserteq_str("\xe1\x9c\x81", buffer);
205 
206 	/* Hamster face, translates to four characters */
207 	pos = buffer;
208 	ut_assert(!utf8_put(0x1f439, &pos));
209 	ut_asserteq(4, pos - buffer);
210 	ut_asserteq_str("\xf0\x9f\x90\xb9", buffer);
211 
212 	/* Illegal code */
213 	pos = buffer;
214 	ut_asserteq(-1, utf8_put(0xd888, &pos));
215 
216 	return 0;
217 }
218 UNICODE_TEST(unicode_test_utf8_put);
219 
unicode_test_utf8_utf16_strlen(struct unit_test_state * uts)220 static int unicode_test_utf8_utf16_strlen(struct unit_test_state *uts)
221 {
222 	ut_asserteq(6, utf8_utf16_strlen(d1));
223 	ut_asserteq(8, utf8_utf16_strlen(d2));
224 	ut_asserteq(3, utf8_utf16_strlen(d3));
225 	ut_asserteq(6, utf8_utf16_strlen(d4));
226 
227 	/* illegal utf-8 sequences */
228 	ut_asserteq(4, utf8_utf16_strlen(j1));
229 	ut_asserteq(4, utf8_utf16_strlen(j2));
230 	ut_asserteq(3, utf8_utf16_strlen(j3));
231 
232 	return 0;
233 }
234 UNICODE_TEST(unicode_test_utf8_utf16_strlen);
235 
unicode_test_utf8_utf16_strnlen(struct unit_test_state * uts)236 static int unicode_test_utf8_utf16_strnlen(struct unit_test_state *uts)
237 {
238 	ut_asserteq(3, utf8_utf16_strnlen(d1, 3));
239 	ut_asserteq(6, utf8_utf16_strnlen(d1, 13));
240 	ut_asserteq(6, utf8_utf16_strnlen(d2, 6));
241 	ut_asserteq(2, utf8_utf16_strnlen(d3, 2));
242 	ut_asserteq(4, utf8_utf16_strnlen(d4, 2));
243 	ut_asserteq(6, utf8_utf16_strnlen(d4, 3));
244 
245 	/* illegal utf-8 sequences */
246 	ut_asserteq(4, utf8_utf16_strnlen(j1, 16));
247 	ut_asserteq(4, utf8_utf16_strnlen(j2, 16));
248 	ut_asserteq(3, utf8_utf16_strnlen(j3, 16));
249 
250 	return 0;
251 }
252 UNICODE_TEST(unicode_test_utf8_utf16_strnlen);
253 
254 /**
255  * ut_u16_strcmp() - Compare to u16 strings.
256  *
257  * @a1:		first string
258  * @a2:		second string
259  * @count:	number of u16 to compare
260  * Return:	-1 if a1 < a2, 0 if a1 == a2, 1 if a1 > a2
261  */
unicode_test_u16_strcmp(const u16 * a1,const u16 * a2,size_t count)262 static int unicode_test_u16_strcmp(const u16 *a1, const u16 *a2, size_t count)
263 {
264 	for (; (*a1 || *a2) && count; ++a1, ++a2, --count) {
265 		if (*a1 < *a2)
266 			return -1;
267 		if (*a1 > *a2)
268 			return 1;
269 	}
270 	return 0;
271 }
272 
unicode_test_utf8_utf16_strcpy(struct unit_test_state * uts)273 static int unicode_test_utf8_utf16_strcpy(struct unit_test_state *uts)
274 {
275 	u16 buf[16];
276 	u16 *pos;
277 
278 	pos = buf;
279 	utf8_utf16_strcpy(&pos, d1);
280 	ut_asserteq(6, pos - buf);
281 	ut_assert(!unicode_test_u16_strcmp(buf, c1, SIZE_MAX));
282 
283 	pos = buf;
284 	utf8_utf16_strcpy(&pos, d2);
285 	ut_asserteq(8, pos - buf);
286 	ut_assert(!unicode_test_u16_strcmp(buf, c2, SIZE_MAX));
287 
288 	pos = buf;
289 	utf8_utf16_strcpy(&pos, d3);
290 	ut_asserteq(3, pos - buf);
291 	ut_assert(!unicode_test_u16_strcmp(buf, c3, SIZE_MAX));
292 
293 	pos = buf;
294 	utf8_utf16_strcpy(&pos, d4);
295 	ut_asserteq(6, pos - buf);
296 	ut_assert(!unicode_test_u16_strcmp(buf, c4, SIZE_MAX));
297 
298 	/* Illegal utf-8 strings */
299 	pos = buf;
300 	utf8_utf16_strcpy(&pos, j1);
301 	ut_asserteq(4, pos - buf);
302 	ut_assert(!unicode_test_u16_strcmp(buf, L"j1?l", SIZE_MAX));
303 
304 	pos = buf;
305 	utf8_utf16_strcpy(&pos, j2);
306 	ut_asserteq(4, pos - buf);
307 	ut_assert(!unicode_test_u16_strcmp(buf, L"j2?l", SIZE_MAX));
308 
309 	pos = buf;
310 	utf8_utf16_strcpy(&pos, j3);
311 	ut_asserteq(3, pos - buf);
312 	ut_assert(!unicode_test_u16_strcmp(buf, L"j3?", SIZE_MAX));
313 
314 	return 0;
315 }
316 UNICODE_TEST(unicode_test_utf8_utf16_strcpy);
317 
unicode_test_utf8_utf16_strncpy(struct unit_test_state * uts)318 static int unicode_test_utf8_utf16_strncpy(struct unit_test_state *uts)
319 {
320 	u16 buf[16];
321 	u16 *pos;
322 
323 	pos = buf;
324 	memset(buf, 0, sizeof(buf));
325 	utf8_utf16_strncpy(&pos, d1, 4);
326 	ut_asserteq(4, pos - buf);
327 	ut_assert(!buf[4]);
328 	ut_assert(!unicode_test_u16_strcmp(buf, c1, 4));
329 
330 	pos = buf;
331 	memset(buf, 0, sizeof(buf));
332 	utf8_utf16_strncpy(&pos, d2, 10);
333 	ut_asserteq(8, pos - buf);
334 	ut_assert(buf[4]);
335 	ut_assert(!unicode_test_u16_strcmp(buf, c2, SIZE_MAX));
336 
337 	pos = buf;
338 	memset(buf, 0, sizeof(buf));
339 	utf8_utf16_strncpy(&pos, d3, 2);
340 	ut_asserteq(2, pos - buf);
341 	ut_assert(!buf[2]);
342 	ut_assert(!unicode_test_u16_strcmp(buf, c3, 2));
343 
344 	pos = buf;
345 	memset(buf, 0, sizeof(buf));
346 	utf8_utf16_strncpy(&pos, d4, 2);
347 	ut_asserteq(4, pos - buf);
348 	ut_assert(!buf[4]);
349 	ut_assert(!unicode_test_u16_strcmp(buf, c4, 4));
350 
351 	pos = buf;
352 	memset(buf, 0, sizeof(buf));
353 	utf8_utf16_strncpy(&pos, d4, 10);
354 	ut_asserteq(6, pos - buf);
355 	ut_assert(buf[5]);
356 	ut_assert(!unicode_test_u16_strcmp(buf, c4, SIZE_MAX));
357 
358 	return 0;
359 }
360 UNICODE_TEST(unicode_test_utf8_utf16_strncpy);
361 
unicode_test_utf16_get(struct unit_test_state * uts)362 static int unicode_test_utf16_get(struct unit_test_state *uts)
363 {
364 	const u16 *s;
365 	s32 code;
366 	int i;
367 
368 	/* Check characters less than 0x10000 */
369 	s = c2;
370 	for (i = 0; i < 9; ++i) {
371 		code = utf16_get((const u16 **)&s);
372 		ut_asserteq(c2[i], code);
373 		if (!code)
374 			break;
375 	}
376 	ut_asserteq_ptr(c2 + 8, s);
377 
378 	/* Check character greater 0xffff */
379 	s = c4;
380 	code = utf16_get((const u16 **)&s);
381 	ut_asserteq(0x0001048d, code);
382 	ut_asserteq_ptr(c4 + 2, s);
383 
384 	return 0;
385 }
386 UNICODE_TEST(unicode_test_utf16_get);
387 
unicode_test_utf16_put(struct unit_test_state * uts)388 static int unicode_test_utf16_put(struct unit_test_state *uts)
389 {
390 	u16 buffer[4] = { 0, };
391 	u16 *pos;
392 
393 	/* Commercial at, translates to one word */
394 	pos = buffer;
395 	ut_assert(!utf16_put('@', &pos));
396 	ut_asserteq(1, pos - buffer);
397 	ut_asserteq((u16)'@', buffer[0]);
398 	ut_assert(!buffer[1]);
399 
400 	/* Hamster face, translates to two words */
401 	pos = buffer;
402 	ut_assert(!utf16_put(0x1f439, &pos));
403 	ut_asserteq(2, pos - buffer);
404 	ut_asserteq((u16)0xd83d, buffer[0]);
405 	ut_asserteq((u16)0xdc39, buffer[1]);
406 	ut_assert(!buffer[2]);
407 
408 	/* Illegal code */
409 	pos = buffer;
410 	ut_asserteq(-1, utf16_put(0xd888, &pos));
411 
412 	return 0;
413 }
414 UNICODE_TEST(unicode_test_utf16_put);
415 
unicode_test_utf16_strnlen(struct unit_test_state * uts)416 static int unicode_test_utf16_strnlen(struct unit_test_state *uts)
417 {
418 	ut_asserteq(3, utf16_strnlen(c1, 3));
419 	ut_asserteq(6, utf16_strnlen(c1, 13));
420 	ut_asserteq(6, utf16_strnlen(c2, 6));
421 	ut_asserteq(2, utf16_strnlen(c3, 2));
422 	ut_asserteq(2, utf16_strnlen(c4, 2));
423 	ut_asserteq(3, utf16_strnlen(c4, 3));
424 
425 	/* illegal utf-16 word sequences */
426 	ut_asserteq(4, utf16_strnlen(i1, 16));
427 	ut_asserteq(4, utf16_strnlen(i2, 16));
428 	ut_asserteq(3, utf16_strnlen(i3, 16));
429 
430 	return 0;
431 }
432 UNICODE_TEST(unicode_test_utf16_strnlen);
433 
unicode_test_utf16_utf8_strlen(struct unit_test_state * uts)434 static int unicode_test_utf16_utf8_strlen(struct unit_test_state *uts)
435 {
436 	ut_asserteq(6, utf16_utf8_strlen(c1));
437 	ut_asserteq(9, utf16_utf8_strlen(c2));
438 	ut_asserteq(9, utf16_utf8_strlen(c3));
439 	ut_asserteq(12, utf16_utf8_strlen(c4));
440 
441 	/* illegal utf-16 word sequences */
442 	ut_asserteq(4, utf16_utf8_strlen(i1));
443 	ut_asserteq(4, utf16_utf8_strlen(i2));
444 	ut_asserteq(3, utf16_utf8_strlen(i3));
445 
446 	return 0;
447 }
448 UNICODE_TEST(unicode_test_utf16_utf8_strlen);
449 
unicode_test_utf16_utf8_strnlen(struct unit_test_state * uts)450 static int unicode_test_utf16_utf8_strnlen(struct unit_test_state *uts)
451 {
452 	ut_asserteq(3, utf16_utf8_strnlen(c1, 3));
453 	ut_asserteq(6, utf16_utf8_strnlen(c1, 13));
454 	ut_asserteq(7, utf16_utf8_strnlen(c2, 6));
455 	ut_asserteq(6, utf16_utf8_strnlen(c3, 2));
456 	ut_asserteq(8, utf16_utf8_strnlen(c4, 2));
457 	ut_asserteq(12, utf16_utf8_strnlen(c4, 3));
458 	return 0;
459 }
460 UNICODE_TEST(unicode_test_utf16_utf8_strnlen);
461 
unicode_test_utf16_utf8_strcpy(struct unit_test_state * uts)462 static int unicode_test_utf16_utf8_strcpy(struct unit_test_state *uts)
463 {
464 	char buf[16];
465 	char *pos;
466 
467 	pos = buf;
468 	utf16_utf8_strcpy(&pos, c1);
469 	ut_asserteq(6, pos - buf);
470 	ut_asserteq_str(d1, buf);
471 
472 	pos = buf;
473 	utf16_utf8_strcpy(&pos, c2);
474 	ut_asserteq(9, pos - buf);
475 	ut_asserteq_str(d2, buf);
476 
477 	pos = buf;
478 	utf16_utf8_strcpy(&pos, c3);
479 	ut_asserteq(9, pos - buf);
480 	ut_asserteq_str(d3, buf);
481 
482 	pos = buf;
483 	utf16_utf8_strcpy(&pos, c4);
484 	ut_asserteq(12, pos - buf);
485 	ut_asserteq_str(d4, buf);
486 
487 	/* Illegal utf-16 strings */
488 	pos = buf;
489 	utf16_utf8_strcpy(&pos, i1);
490 	ut_asserteq(4, pos - buf);
491 	ut_asserteq_str("i1?l", buf);
492 
493 	pos = buf;
494 	utf16_utf8_strcpy(&pos, i2);
495 	ut_asserteq(4, pos - buf);
496 	ut_asserteq_str("i2?l", buf);
497 
498 	pos = buf;
499 	utf16_utf8_strcpy(&pos, i3);
500 	ut_asserteq(3, pos - buf);
501 	ut_asserteq_str("i3?", buf);
502 
503 	return 0;
504 }
505 UNICODE_TEST(unicode_test_utf16_utf8_strcpy);
506 
unicode_test_utf16_utf8_strncpy(struct unit_test_state * uts)507 static int unicode_test_utf16_utf8_strncpy(struct unit_test_state *uts)
508 {
509 	char buf[16];
510 	char *pos;
511 
512 	pos = buf;
513 	memset(buf, 0, sizeof(buf));
514 	utf16_utf8_strncpy(&pos, c1, 4);
515 	ut_asserteq(4, pos - buf);
516 	ut_assert(!buf[4]);
517 	ut_assert(!strncmp(buf, d1, 4));
518 
519 	pos = buf;
520 	memset(buf, 0, sizeof(buf));
521 	utf16_utf8_strncpy(&pos, c2, 10);
522 	ut_asserteq(9, pos - buf);
523 	ut_assert(buf[4]);
524 	ut_assert(!strncmp(buf, d2, SIZE_MAX));
525 
526 	pos = buf;
527 	memset(buf, 0, sizeof(buf));
528 	utf16_utf8_strncpy(&pos, c3, 2);
529 	ut_asserteq(6, pos - buf);
530 	ut_assert(!buf[6]);
531 	ut_assert(!strncmp(buf, d3, 6));
532 
533 	pos = buf;
534 	memset(buf, 0, sizeof(buf));
535 	utf16_utf8_strncpy(&pos, c4, 2);
536 	ut_asserteq(8, pos - buf);
537 	ut_assert(!buf[8]);
538 	ut_assert(!strncmp(buf, d4, 8));
539 
540 	pos = buf;
541 	memset(buf, 0, sizeof(buf));
542 	utf16_utf8_strncpy(&pos, c4, 10);
543 	ut_asserteq(12, pos - buf);
544 	ut_assert(buf[5]);
545 	ut_assert(!strncmp(buf, d4, SIZE_MAX));
546 
547 	return 0;
548 }
549 UNICODE_TEST(unicode_test_utf16_utf8_strncpy);
550 
unicode_test_utf_to_lower(struct unit_test_state * uts)551 static int unicode_test_utf_to_lower(struct unit_test_state *uts)
552 {
553 	ut_asserteq('@', utf_to_lower('@'));
554 	ut_asserteq('a', utf_to_lower('A'));
555 	ut_asserteq('z', utf_to_lower('Z'));
556 	ut_asserteq('[', utf_to_lower('['));
557 	ut_asserteq('m', utf_to_lower('m'));
558 	/* Latin letter O with diaresis (umlaut) */
559 	ut_asserteq(0x00f6, utf_to_lower(0x00d6));
560 #ifdef CONFIG_EFI_UNICODE_CAPITALIZATION
561 	/* Cyrillic letter I*/
562 	ut_asserteq(0x0438, utf_to_lower(0x0418));
563 #endif
564 	return 0;
565 }
566 UNICODE_TEST(unicode_test_utf_to_lower);
567 
unicode_test_utf_to_upper(struct unit_test_state * uts)568 static int unicode_test_utf_to_upper(struct unit_test_state *uts)
569 {
570 	ut_asserteq('`', utf_to_upper('`'));
571 	ut_asserteq('A', utf_to_upper('a'));
572 	ut_asserteq('Z', utf_to_upper('z'));
573 	ut_asserteq('{', utf_to_upper('{'));
574 	ut_asserteq('M', utf_to_upper('M'));
575 	/* Latin letter O with diaresis (umlaut) */
576 	ut_asserteq(0x00d6, utf_to_upper(0x00f6));
577 #ifdef CONFIG_EFI_UNICODE_CAPITALIZATION
578 	/* Cyrillic letter I */
579 	ut_asserteq(0x0418, utf_to_upper(0x0438));
580 #endif
581 	return 0;
582 }
583 UNICODE_TEST(unicode_test_utf_to_upper);
584 
unicode_test_u16_strncmp(struct unit_test_state * uts)585 static int unicode_test_u16_strncmp(struct unit_test_state *uts)
586 {
587 	ut_assert(u16_strncmp(L"abc", L"abc", 3) == 0);
588 	ut_assert(u16_strncmp(L"abcdef", L"abcghi", 3) == 0);
589 	ut_assert(u16_strncmp(L"abcdef", L"abcghi", 6) < 0);
590 	ut_assert(u16_strncmp(L"abcghi", L"abcdef", 6) > 0);
591 	ut_assert(u16_strcmp(L"abc", L"abc") == 0);
592 	ut_assert(u16_strcmp(L"abcdef", L"deghi") < 0);
593 	ut_assert(u16_strcmp(L"deghi", L"abcdef") > 0);
594 	return 0;
595 }
596 UNICODE_TEST(unicode_test_u16_strncmp);
597 
unicode_test_u16_strsize(struct unit_test_state * uts)598 static int unicode_test_u16_strsize(struct unit_test_state *uts)
599 {
600 	ut_asserteq_64(u16_strsize(c1), 14);
601 	ut_asserteq_64(u16_strsize(c2), 18);
602 	ut_asserteq_64(u16_strsize(c3), 8);
603 	ut_asserteq_64(u16_strsize(c4), 14);
604 	return 0;
605 }
606 UNICODE_TEST(unicode_test_u16_strsize);
607 
unicode_test_utf_to_cp(struct unit_test_state * uts)608 static int unicode_test_utf_to_cp(struct unit_test_state *uts)
609 {
610 	int ret;
611 	s32 c;
612 
613 	c = '\n';
614 	ret = utf_to_cp(&c, codepage_437);
615 	ut_asserteq(0, ret);
616 	ut_asserteq('\n', c);
617 
618 	c = 'a';
619 	ret = utf_to_cp(&c, codepage_437);
620 	ut_asserteq(0, ret);
621 	ut_asserteq('a', c);
622 
623 	c = 0x03c4; /* Greek small letter tau */
624 	ret = utf_to_cp(&c, codepage_437);
625 	ut_asserteq(0, ret);
626 	ut_asserteq(0xe7, c);
627 
628 	c = 0x03a4; /* Greek capital letter tau */
629 	ret = utf_to_cp(&c, codepage_437);
630 	ut_asserteq(-ENOENT, ret);
631 	ut_asserteq('?', c);
632 
633 	return 0;
634 }
635 UNICODE_TEST(unicode_test_utf_to_cp);
636 
utf8_to_cp437_stream_helper(const char * in,char * out)637 static void utf8_to_cp437_stream_helper(const char *in, char *out)
638 {
639 	char buffer[5];
640 	int ret;
641 
642 	*buffer = 0;
643 	for (; *in; ++in) {
644 		ret = utf8_to_cp437_stream(*in, buffer);
645 		if (ret)
646 			*out++ = ret;
647 	}
648 	*out = 0;
649 }
650 
unicode_test_utf8_to_cp437_stream(struct unit_test_state * uts)651 static int unicode_test_utf8_to_cp437_stream(struct unit_test_state *uts)
652 {
653 	char buf[16];
654 
655 	utf8_to_cp437_stream_helper(d1, buf);
656 	ut_asserteq_str("U-Boot", buf);
657 	utf8_to_cp437_stream_helper(d2, buf);
658 	ut_asserteq_str("kafb\xa0tur", buf);
659 	utf8_to_cp437_stream_helper(d5, buf);
660 	ut_asserteq_str("? is not B", buf);
661 	utf8_to_cp437_stream_helper(j2, buf);
662 	ut_asserteq_str("j2l", buf);
663 
664 	return 0;
665 }
666 UNICODE_TEST(unicode_test_utf8_to_cp437_stream);
667 
utf8_to_utf32_stream_helper(const char * in,s32 * out)668 static void utf8_to_utf32_stream_helper(const char *in, s32 *out)
669 {
670 	char buffer[5];
671 	int ret;
672 
673 	*buffer = 0;
674 	for (; *in; ++in) {
675 		ret = utf8_to_utf32_stream(*in, buffer);
676 		if (ret)
677 			*out++ = ret;
678 	}
679 	*out = 0;
680 }
681 
unicode_test_utf8_to_utf32_stream(struct unit_test_state * uts)682 static int unicode_test_utf8_to_utf32_stream(struct unit_test_state *uts)
683 {
684 	s32 buf[16];
685 
686 	const u32 u1[] = {0x55, 0x2D, 0x42, 0x6F, 0x6F, 0x74, 0x0000};
687 	const u32 u2[] = {0x6B, 0x61, 0x66, 0x62, 0xE1, 0x74, 0x75, 0x72, 0x00};
688 	const u32 u3[] = {0x0392, 0x20, 0x69, 0x73, 0x20, 0x6E, 0x6F, 0x74,
689 			  0x20, 0x42, 0x00};
690 	const u32 u4[] = {0x6A, 0x32, 0x6C, 0x00};
691 
692 	memset(buf, 0, sizeof(buf));
693 	utf8_to_utf32_stream_helper(d1, buf);
694 	ut_asserteq_mem(u1, buf, sizeof(u1));
695 
696 	memset(buf, 0, sizeof(buf));
697 	utf8_to_utf32_stream_helper(d2, buf);
698 	ut_asserteq_mem(u2, buf, sizeof(u2));
699 
700 	memset(buf, 0, sizeof(buf));
701 	utf8_to_utf32_stream_helper(d5, buf);
702 	ut_asserteq_mem(u3, buf, sizeof(u3));
703 
704 	memset(buf, 0, sizeof(buf));
705 	utf8_to_utf32_stream_helper(j2, buf);
706 	ut_asserteq_mem(u4, buf, sizeof(u4));
707 
708 	return 0;
709 }
710 UNICODE_TEST(unicode_test_utf8_to_utf32_stream);
711 
712 #ifdef CONFIG_EFI_LOADER
unicode_test_efi_create_indexed_name(struct unit_test_state * uts)713 static int unicode_test_efi_create_indexed_name(struct unit_test_state *uts)
714 {
715 	u16 buf[16];
716 	u16 const expected[] = L"Capsule0AF9";
717 	u16 *pos;
718 
719 	memset(buf, 0xeb, sizeof(buf));
720 	pos = efi_create_indexed_name(buf, sizeof(buf), "Capsule", 0x0af9);
721 
722 	ut_asserteq_mem(expected, buf, sizeof(expected));
723 	ut_asserteq(pos - buf, u16_strnlen(buf, SIZE_MAX));
724 
725 	return 0;
726 }
727 UNICODE_TEST(unicode_test_efi_create_indexed_name);
728 #endif
729 
do_ut_unicode(struct cmd_tbl * cmdtp,int flag,int argc,char * const argv[])730 int do_ut_unicode(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
731 {
732 	struct unit_test *tests = ll_entry_start(struct unit_test, unicode_test);
733 	const int n_ents = ll_entry_count(struct unit_test, unicode_test);
734 
735 	return cmd_ut_category("Unicode", "unicode_test_",
736 			       tests, n_ents, argc, argv);
737 }
738