1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2 /* 3 * Test cases for lib/string_helpers.c module. 4 */ 5 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 6 7 #include <kunit/test.h> 8 #include <linux/array_size.h> 9 #include <linux/kernel.h> 10 #include <linux/random.h> 11 #include <linux/string.h> 12 #include <linux/string_helpers.h> 13 14 static void test_string_check_buf(struct kunit *test, 15 const char *name, unsigned int flags, 16 char *in, size_t p, 17 char *out_real, size_t q_real, 18 char *out_test, size_t q_test) 19 { 20 KUNIT_ASSERT_EQ_MSG(test, q_real, q_test, "name:%s", name); 21 KUNIT_EXPECT_MEMEQ_MSG(test, out_test, out_real, q_test, 22 "name:%s", name); 23 } 24 25 struct test_string { 26 const char *in; 27 const char *out; 28 unsigned int flags; 29 }; 30 31 static const struct test_string strings[] = { 32 { 33 .in = "\\f\\ \\n\\r\\t\\v", 34 .out = "\f\\ \n\r\t\v", 35 .flags = UNESCAPE_SPACE, 36 }, 37 { 38 .in = "\\40\\1\\387\\0064\\05\\040\\8a\\110\\777", 39 .out = " \001\00387\0064\005 \\8aH?7", 40 .flags = UNESCAPE_OCTAL, 41 }, 42 { 43 .in = "\\xv\\xa\\x2c\\xD\\x6f2", 44 .out = "\\xv\n,\ro2", 45 .flags = UNESCAPE_HEX, 46 }, 47 { 48 .in = "\\h\\\\\\\"\\a\\e\\", 49 .out = "\\h\\\"\a\e\\", 50 .flags = UNESCAPE_SPECIAL, 51 }, 52 }; 53 54 static void test_string_unescape(struct kunit *test, 55 const char *name, unsigned int flags, 56 bool inplace) 57 { 58 int q_real = 256; 59 char *in = kunit_kzalloc(test, q_real, GFP_KERNEL); 60 char *out_test = kunit_kzalloc(test, q_real, GFP_KERNEL); 61 char *out_real = kunit_kzalloc(test, q_real, GFP_KERNEL); 62 int i, p = 0, q_test = 0; 63 64 KUNIT_ASSERT_NOT_ERR_OR_NULL(test, in); 65 KUNIT_ASSERT_NOT_ERR_OR_NULL(test, out_test); 66 KUNIT_ASSERT_NOT_ERR_OR_NULL(test, out_real); 67 68 for (i = 0; i < ARRAY_SIZE(strings); i++) { 69 const char *s = strings[i].in; 70 int len = strlen(strings[i].in); 71 72 /* Copy string to in buffer */ 73 memcpy(&in[p], s, len); 74 p += len; 75 76 /* Copy expected result for given flags */ 77 if (flags & strings[i].flags) { 78 s = strings[i].out; 79 len = strlen(strings[i].out); 80 } 81 memcpy(&out_test[q_test], s, len); 82 q_test += len; 83 } 84 in[p++] = '\0'; 85 86 /* Call string_unescape and compare result */ 87 if (inplace) { 88 memcpy(out_real, in, p); 89 if (flags == UNESCAPE_ANY) 90 q_real = string_unescape_any_inplace(out_real); 91 else 92 q_real = string_unescape_inplace(out_real, flags); 93 } else if (flags == UNESCAPE_ANY) { 94 q_real = string_unescape_any(in, out_real, q_real); 95 } else { 96 q_real = string_unescape(in, out_real, q_real, flags); 97 } 98 99 test_string_check_buf(test, name, flags, in, p - 1, out_real, q_real, 100 out_test, q_test); 101 } 102 103 struct test_string_1 { 104 const char *out; 105 unsigned int flags; 106 }; 107 108 #define TEST_STRING_2_MAX_S1 32 109 struct test_string_2 { 110 const char *in; 111 struct test_string_1 s1[TEST_STRING_2_MAX_S1]; 112 }; 113 114 #define TEST_STRING_2_DICT_0 NULL 115 static const struct test_string_2 escape0[] = {{ 116 .in = "\f\\ \n\r\t\v", 117 .s1 = {{ 118 .out = "\\f\\ \\n\\r\\t\\v", 119 .flags = ESCAPE_SPACE, 120 },{ 121 .out = "\\f\\134\\040\\n\\r\\t\\v", 122 .flags = ESCAPE_SPACE | ESCAPE_OCTAL, 123 },{ 124 .out = "\\f\\x5c\\x20\\n\\r\\t\\v", 125 .flags = ESCAPE_SPACE | ESCAPE_HEX, 126 },{ 127 /* terminator */ 128 }} 129 },{ 130 .in = "\\h\\\"\a\e\\", 131 .s1 = {{ 132 .out = "\\\\h\\\\\\\"\\a\\e\\\\", 133 .flags = ESCAPE_SPECIAL, 134 },{ 135 .out = "\\\\\\150\\\\\\\"\\a\\e\\\\", 136 .flags = ESCAPE_SPECIAL | ESCAPE_OCTAL, 137 },{ 138 .out = "\\\\\\x68\\\\\\\"\\a\\e\\\\", 139 .flags = ESCAPE_SPECIAL | ESCAPE_HEX, 140 },{ 141 /* terminator */ 142 }} 143 },{ 144 .in = "\eb \\C\007\"\x90\r]", 145 .s1 = {{ 146 .out = "\eb \\C\007\"\x90\\r]", 147 .flags = ESCAPE_SPACE, 148 },{ 149 .out = "\\eb \\\\C\\a\\\"\x90\r]", 150 .flags = ESCAPE_SPECIAL, 151 },{ 152 .out = "\\eb \\\\C\\a\\\"\x90\\r]", 153 .flags = ESCAPE_SPACE | ESCAPE_SPECIAL, 154 },{ 155 .out = "\\033\\142\\040\\134\\103\\007\\042\\220\\015\\135", 156 .flags = ESCAPE_OCTAL, 157 },{ 158 .out = "\\033\\142\\040\\134\\103\\007\\042\\220\\r\\135", 159 .flags = ESCAPE_SPACE | ESCAPE_OCTAL, 160 },{ 161 .out = "\\e\\142\\040\\\\\\103\\a\\\"\\220\\015\\135", 162 .flags = ESCAPE_SPECIAL | ESCAPE_OCTAL, 163 },{ 164 .out = "\\e\\142\\040\\\\\\103\\a\\\"\\220\\r\\135", 165 .flags = ESCAPE_SPACE | ESCAPE_SPECIAL | ESCAPE_OCTAL, 166 },{ 167 .out = "\eb \\C\007\"\x90\r]", 168 .flags = ESCAPE_NP, 169 },{ 170 .out = "\eb \\C\007\"\x90\\r]", 171 .flags = ESCAPE_SPACE | ESCAPE_NP, 172 },{ 173 .out = "\\eb \\C\\a\"\x90\r]", 174 .flags = ESCAPE_SPECIAL | ESCAPE_NP, 175 },{ 176 .out = "\\eb \\C\\a\"\x90\\r]", 177 .flags = ESCAPE_SPACE | ESCAPE_SPECIAL | ESCAPE_NP, 178 },{ 179 .out = "\\033b \\C\\007\"\\220\\015]", 180 .flags = ESCAPE_OCTAL | ESCAPE_NP, 181 },{ 182 .out = "\\033b \\C\\007\"\\220\\r]", 183 .flags = ESCAPE_SPACE | ESCAPE_OCTAL | ESCAPE_NP, 184 },{ 185 .out = "\\eb \\C\\a\"\\220\\r]", 186 .flags = ESCAPE_SPECIAL | ESCAPE_SPACE | ESCAPE_OCTAL | 187 ESCAPE_NP, 188 },{ 189 .out = "\\x1bb \\C\\x07\"\\x90\\x0d]", 190 .flags = ESCAPE_NP | ESCAPE_HEX, 191 },{ 192 /* terminator */ 193 }} 194 },{ 195 .in = "\007 \eb\"\x90\xCF\r", 196 .s1 = {{ 197 .out = "\007 \eb\"\\220\\317\r", 198 .flags = ESCAPE_OCTAL | ESCAPE_NA, 199 },{ 200 .out = "\007 \eb\"\\x90\\xcf\r", 201 .flags = ESCAPE_HEX | ESCAPE_NA, 202 },{ 203 .out = "\007 \eb\"\x90\xCF\r", 204 .flags = ESCAPE_NA, 205 },{ 206 /* terminator */ 207 }} 208 },{ 209 /* terminator */ 210 }}; 211 212 #define TEST_STRING_2_DICT_1 "b\\ \t\r\xCF" 213 static const struct test_string_2 escape1[] = {{ 214 .in = "\f\\ \n\r\t\v", 215 .s1 = {{ 216 .out = "\f\\134\\040\n\\015\\011\v", 217 .flags = ESCAPE_OCTAL, 218 },{ 219 .out = "\f\\x5c\\x20\n\\x0d\\x09\v", 220 .flags = ESCAPE_HEX, 221 },{ 222 .out = "\f\\134\\040\n\\015\\011\v", 223 .flags = ESCAPE_ANY | ESCAPE_APPEND, 224 },{ 225 .out = "\\014\\134\\040\\012\\015\\011\\013", 226 .flags = ESCAPE_OCTAL | ESCAPE_APPEND | ESCAPE_NAP, 227 },{ 228 .out = "\\x0c\\x5c\\x20\\x0a\\x0d\\x09\\x0b", 229 .flags = ESCAPE_HEX | ESCAPE_APPEND | ESCAPE_NAP, 230 },{ 231 .out = "\f\\134\\040\n\\015\\011\v", 232 .flags = ESCAPE_OCTAL | ESCAPE_APPEND | ESCAPE_NA, 233 },{ 234 .out = "\f\\x5c\\x20\n\\x0d\\x09\v", 235 .flags = ESCAPE_HEX | ESCAPE_APPEND | ESCAPE_NA, 236 },{ 237 /* terminator */ 238 }} 239 },{ 240 .in = "\\h\\\"\a\xCF\e\\", 241 .s1 = {{ 242 .out = "\\134h\\134\"\a\\317\e\\134", 243 .flags = ESCAPE_OCTAL, 244 },{ 245 .out = "\\134h\\134\"\a\\317\e\\134", 246 .flags = ESCAPE_ANY | ESCAPE_APPEND, 247 },{ 248 .out = "\\134h\\134\"\\007\\317\\033\\134", 249 .flags = ESCAPE_OCTAL | ESCAPE_APPEND | ESCAPE_NAP, 250 },{ 251 .out = "\\134h\\134\"\a\\317\e\\134", 252 .flags = ESCAPE_OCTAL | ESCAPE_APPEND | ESCAPE_NA, 253 },{ 254 /* terminator */ 255 }} 256 },{ 257 .in = "\eb \\C\007\"\x90\r]", 258 .s1 = {{ 259 .out = "\e\\142\\040\\134C\007\"\x90\\015]", 260 .flags = ESCAPE_OCTAL, 261 },{ 262 /* terminator */ 263 }} 264 },{ 265 .in = "\007 \eb\"\x90\xCF\r", 266 .s1 = {{ 267 .out = "\007 \eb\"\x90\xCF\r", 268 .flags = ESCAPE_NA, 269 },{ 270 .out = "\007 \eb\"\x90\xCF\r", 271 .flags = ESCAPE_SPACE | ESCAPE_NA, 272 },{ 273 .out = "\007 \eb\"\x90\xCF\r", 274 .flags = ESCAPE_SPECIAL | ESCAPE_NA, 275 },{ 276 .out = "\007 \eb\"\x90\xCF\r", 277 .flags = ESCAPE_SPACE | ESCAPE_SPECIAL | ESCAPE_NA, 278 },{ 279 .out = "\007 \eb\"\x90\\317\r", 280 .flags = ESCAPE_OCTAL | ESCAPE_NA, 281 },{ 282 .out = "\007 \eb\"\x90\\317\r", 283 .flags = ESCAPE_SPACE | ESCAPE_OCTAL | ESCAPE_NA, 284 },{ 285 .out = "\007 \eb\"\x90\\317\r", 286 .flags = ESCAPE_SPECIAL | ESCAPE_OCTAL | ESCAPE_NA, 287 },{ 288 .out = "\007 \eb\"\x90\\317\r", 289 .flags = ESCAPE_ANY | ESCAPE_NA, 290 },{ 291 .out = "\007 \eb\"\x90\\xcf\r", 292 .flags = ESCAPE_HEX | ESCAPE_NA, 293 },{ 294 .out = "\007 \eb\"\x90\\xcf\r", 295 .flags = ESCAPE_SPACE | ESCAPE_HEX | ESCAPE_NA, 296 },{ 297 .out = "\007 \eb\"\x90\\xcf\r", 298 .flags = ESCAPE_SPECIAL | ESCAPE_HEX | ESCAPE_NA, 299 },{ 300 .out = "\007 \eb\"\x90\\xcf\r", 301 .flags = ESCAPE_SPACE | ESCAPE_SPECIAL | ESCAPE_HEX | ESCAPE_NA, 302 },{ 303 /* terminator */ 304 }} 305 },{ 306 .in = "\007 \eb\"\x90\xCF\r", 307 .s1 = {{ 308 .out = "\007 \eb\"\x90\xCF\r", 309 .flags = ESCAPE_NAP, 310 },{ 311 .out = "\007 \eb\"\x90\xCF\\r", 312 .flags = ESCAPE_SPACE | ESCAPE_NAP, 313 },{ 314 .out = "\007 \eb\"\x90\xCF\r", 315 .flags = ESCAPE_SPECIAL | ESCAPE_NAP, 316 },{ 317 .out = "\007 \eb\"\x90\xCF\\r", 318 .flags = ESCAPE_SPACE | ESCAPE_SPECIAL | ESCAPE_NAP, 319 },{ 320 .out = "\007 \eb\"\x90\\317\\015", 321 .flags = ESCAPE_OCTAL | ESCAPE_NAP, 322 },{ 323 .out = "\007 \eb\"\x90\\317\\r", 324 .flags = ESCAPE_SPACE | ESCAPE_OCTAL | ESCAPE_NAP, 325 },{ 326 .out = "\007 \eb\"\x90\\317\\015", 327 .flags = ESCAPE_SPECIAL | ESCAPE_OCTAL | ESCAPE_NAP, 328 },{ 329 .out = "\007 \eb\"\x90\\317\r", 330 .flags = ESCAPE_ANY | ESCAPE_NAP, 331 },{ 332 .out = "\007 \eb\"\x90\\xcf\\x0d", 333 .flags = ESCAPE_HEX | ESCAPE_NAP, 334 },{ 335 .out = "\007 \eb\"\x90\\xcf\\r", 336 .flags = ESCAPE_SPACE | ESCAPE_HEX | ESCAPE_NAP, 337 },{ 338 .out = "\007 \eb\"\x90\\xcf\\x0d", 339 .flags = ESCAPE_SPECIAL | ESCAPE_HEX | ESCAPE_NAP, 340 },{ 341 .out = "\007 \eb\"\x90\\xcf\\r", 342 .flags = ESCAPE_SPACE | ESCAPE_SPECIAL | ESCAPE_HEX | ESCAPE_NAP, 343 },{ 344 /* terminator */ 345 }} 346 },{ 347 /* terminator */ 348 }}; 349 350 static const struct test_string strings_upper[] = { 351 { 352 .in = "abcdefgh1234567890test", 353 .out = "ABCDEFGH1234567890TEST", 354 }, 355 { 356 .in = "abCdeFgH1234567890TesT", 357 .out = "ABCDEFGH1234567890TEST", 358 }, 359 }; 360 361 static const struct test_string strings_lower[] = { 362 { 363 .in = "ABCDEFGH1234567890TEST", 364 .out = "abcdefgh1234567890test", 365 }, 366 { 367 .in = "abCdeFgH1234567890TesT", 368 .out = "abcdefgh1234567890test", 369 }, 370 }; 371 372 static const char *test_string_find_match(const struct test_string_2 *s2, 373 unsigned int flags) 374 { 375 const struct test_string_1 *s1 = s2->s1; 376 unsigned int i; 377 378 if (!flags) 379 return s2->in; 380 381 /* Test cases are NULL-aware */ 382 flags &= ~ESCAPE_NULL; 383 384 /* ESCAPE_OCTAL has a higher priority */ 385 if (flags & ESCAPE_OCTAL) 386 flags &= ~ESCAPE_HEX; 387 388 for (i = 0; i < TEST_STRING_2_MAX_S1 && s1->out; i++, s1++) 389 if (s1->flags == flags) 390 return s1->out; 391 return NULL; 392 } 393 394 static void 395 test_string_escape_overflow(struct kunit *test, 396 const char *in, int p, unsigned int flags, const char *esc, 397 int q_test, const char *name) 398 { 399 int q_real; 400 401 q_real = string_escape_mem(in, p, NULL, 0, flags, esc); 402 KUNIT_EXPECT_EQ_MSG(test, q_real, q_test, "name:%s: flags:%#x", name, flags); 403 } 404 405 static void test_string_escape(struct kunit *test, const char *name, 406 const struct test_string_2 *s2, 407 unsigned int flags, const char *esc) 408 { 409 size_t out_size = 512; 410 char *out_test = kunit_kzalloc(test, out_size, GFP_KERNEL); 411 char *out_real = kunit_kzalloc(test, out_size, GFP_KERNEL); 412 char *in = kunit_kzalloc(test, 256, GFP_KERNEL); 413 int p = 0, q_test = 0; 414 int q_real; 415 416 KUNIT_ASSERT_NOT_ERR_OR_NULL(test, out_test); 417 KUNIT_ASSERT_NOT_ERR_OR_NULL(test, out_real); 418 KUNIT_ASSERT_NOT_ERR_OR_NULL(test, in); 419 420 for (; s2->in; s2++) { 421 const char *out; 422 int len; 423 424 /* NULL injection */ 425 if (flags & ESCAPE_NULL) { 426 in[p++] = '\0'; 427 /* '\0' passes isascii() test */ 428 if (flags & ESCAPE_NA && !(flags & ESCAPE_APPEND && esc)) { 429 out_test[q_test++] = '\0'; 430 } else { 431 out_test[q_test++] = '\\'; 432 out_test[q_test++] = '0'; 433 } 434 } 435 436 /* Don't try strings that have no output */ 437 out = test_string_find_match(s2, flags); 438 if (!out) 439 continue; 440 441 /* Copy string to in buffer */ 442 len = strlen(s2->in); 443 memcpy(&in[p], s2->in, len); 444 p += len; 445 446 /* Copy expected result for given flags */ 447 len = strlen(out); 448 memcpy(&out_test[q_test], out, len); 449 q_test += len; 450 } 451 452 q_real = string_escape_mem(in, p, out_real, out_size, flags, esc); 453 454 test_string_check_buf(test, name, flags, in, p, out_real, q_real, out_test, 455 q_test); 456 457 test_string_escape_overflow(test, in, p, flags, esc, q_test, name); 458 } 459 460 #define string_get_size_maxbuf 16 461 #define test_string_get_size_one(size, blk_size, exp_result10, exp_result2) \ 462 do { \ 463 BUILD_BUG_ON(sizeof(exp_result10) >= string_get_size_maxbuf); \ 464 BUILD_BUG_ON(sizeof(exp_result2) >= string_get_size_maxbuf); \ 465 __test_string_get_size(test, (size), (blk_size), (exp_result10), \ 466 (exp_result2)); \ 467 } while (0) 468 469 470 static void test_string_get_size_check(struct kunit *test, 471 const char *units, 472 const char *exp, 473 char *res, 474 const u64 size, 475 const u64 blk_size) 476 { 477 KUNIT_EXPECT_MEMEQ_MSG(test, res, exp, strlen(exp) + 1, 478 "string_get_size(size = %llu, blk_size = %llu, units = %s)", 479 size, blk_size, units); 480 } 481 482 static void __strchrcut(char *dst, const char *src, const char *cut) 483 { 484 const char *from = src; 485 size_t len; 486 487 do { 488 len = strcspn(from, cut); 489 memcpy(dst, from, len); 490 dst += len; 491 from += len; 492 } while (*from++); 493 *dst = '\0'; 494 } 495 496 static void __test_string_get_size_one(struct kunit *test, 497 const u64 size, const u64 blk_size, 498 const char *exp_result10, 499 const char *exp_result2, 500 enum string_size_units units, 501 const char *cut) 502 { 503 char buf10[string_get_size_maxbuf]; 504 char buf2[string_get_size_maxbuf]; 505 char exp10[string_get_size_maxbuf]; 506 char exp2[string_get_size_maxbuf]; 507 char prefix10[64]; 508 char prefix2[64]; 509 510 sprintf(prefix10, "STRING_UNITS_10 [%s]", cut); 511 sprintf(prefix2, "STRING_UNITS_2 [%s]", cut); 512 513 __strchrcut(exp10, exp_result10, cut); 514 __strchrcut(exp2, exp_result2, cut); 515 516 string_get_size(size, blk_size, STRING_UNITS_10 | units, buf10, sizeof(buf10)); 517 string_get_size(size, blk_size, STRING_UNITS_2 | units, buf2, sizeof(buf2)); 518 519 test_string_get_size_check(test, prefix10, exp10, buf10, size, blk_size); 520 test_string_get_size_check(test, prefix2, exp2, buf2, size, blk_size); 521 } 522 523 static void __test_string_get_size(struct kunit *test, 524 const u64 size, const u64 blk_size, 525 const char *exp_result10, 526 const char *exp_result2) 527 { 528 struct { 529 enum string_size_units units; 530 const char *cut; 531 } get_size_test_cases[] = { 532 { 0, "" }, 533 { STRING_UNITS_NO_SPACE, " " }, 534 { STRING_UNITS_NO_SPACE | STRING_UNITS_NO_BYTES, " B" }, 535 { STRING_UNITS_NO_BYTES, "B" }, 536 }; 537 int i; 538 539 for (i = 0; i < ARRAY_SIZE(get_size_test_cases); i++) 540 __test_string_get_size_one(test, size, blk_size, 541 exp_result10, exp_result2, 542 get_size_test_cases[i].units, 543 get_size_test_cases[i].cut); 544 } 545 546 static void test_get_size(struct kunit *test) 547 { 548 /* small values */ 549 test_string_get_size_one(0, 512, "0 B", "0 B"); 550 test_string_get_size_one(1, 512, "512 B", "512 B"); 551 test_string_get_size_one(1100, 1, "1.10 kB", "1.07 KiB"); 552 553 /* normal values */ 554 test_string_get_size_one(16384, 512, "8.39 MB", "8.00 MiB"); 555 test_string_get_size_one(500118192, 512, "256 GB", "238 GiB"); 556 test_string_get_size_one(8192, 4096, "33.6 MB", "32.0 MiB"); 557 558 /* weird block sizes */ 559 test_string_get_size_one(3000, 1900, "5.70 MB", "5.44 MiB"); 560 561 /* huge values */ 562 test_string_get_size_one(U64_MAX, 4096, "75.6 ZB", "64.0 ZiB"); 563 test_string_get_size_one(4096, U64_MAX, "75.6 ZB", "64.0 ZiB"); 564 } 565 566 static void test_upper_lower(struct kunit *test) 567 { 568 char *dst; 569 int i; 570 571 for (i = 0; i < ARRAY_SIZE(strings_upper); i++) { 572 const char *s = strings_upper[i].in; 573 int len = strlen(strings_upper[i].in) + 1; 574 575 dst = kmalloc(len, GFP_KERNEL); 576 KUNIT_ASSERT_NOT_NULL(test, dst); 577 578 string_upper(dst, s); 579 KUNIT_EXPECT_STREQ(test, dst, strings_upper[i].out); 580 kfree(dst); 581 } 582 583 for (i = 0; i < ARRAY_SIZE(strings_lower); i++) { 584 const char *s = strings_lower[i].in; 585 int len = strlen(strings_lower[i].in) + 1; 586 587 dst = kmalloc(len, GFP_KERNEL); 588 KUNIT_ASSERT_NOT_NULL(test, dst); 589 590 string_lower(dst, s); 591 KUNIT_EXPECT_STREQ(test, dst, strings_lower[i].out); 592 kfree(dst); 593 } 594 } 595 596 static void test_unescape(struct kunit *test) 597 { 598 unsigned int i; 599 600 for (i = 0; i < UNESCAPE_ALL_MASK + 1; i++) 601 test_string_unescape(test, "unescape", i, false); 602 test_string_unescape(test, "unescape inplace", 603 get_random_u32_below(UNESCAPE_ALL_MASK + 1), true); 604 605 /* Without dictionary */ 606 for (i = 0; i < ESCAPE_ALL_MASK + 1; i++) 607 test_string_escape(test, "escape 0", escape0, i, TEST_STRING_2_DICT_0); 608 609 /* With dictionary */ 610 for (i = 0; i < ESCAPE_ALL_MASK + 1; i++) 611 test_string_escape(test, "escape 1", escape1, i, TEST_STRING_2_DICT_1); 612 } 613 614 static struct kunit_case string_helpers_test_cases[] = { 615 KUNIT_CASE(test_get_size), 616 KUNIT_CASE(test_upper_lower), 617 KUNIT_CASE(test_unescape), 618 {} 619 }; 620 621 static struct kunit_suite string_helpers_test_suite = { 622 .name = "string_helpers", 623 .test_cases = string_helpers_test_cases, 624 }; 625 626 kunit_test_suites(&string_helpers_test_suite); 627 628 MODULE_LICENSE("Dual BSD/GPL"); 629