1/* 2 * Copyright © 2011 Google, Inc. 3 * 4 * This is part of HarfBuzz, a text shaping library. 5 * 6 * Permission is hereby granted, without written agreement and without 7 * license or royalty fees, to use, copy, modify, and distribute this 8 * software and its documentation for any purpose, provided that the 9 * above copyright notice and the following two paragraphs appear in 10 * all copies of this software. 11 * 12 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR 13 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES 14 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN 15 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH 16 * DAMAGE. 17 * 18 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, 19 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 20 * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS 21 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO 22 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. 23 * 24 * Google Author(s): Behdad Esfahbod 25 */ 26 27#include "hb-test.h" 28 29/* Unit tests for hb-buffer.h */ 30 31 32static const char utf8[10] = "ab\360\240\200\200defg"; 33static const uint16_t utf16[8] = {'a', 'b', 0xD840, 0xDC00, 'd', 'e', 'f', 'g'}; 34static const uint32_t utf32[7] = {'a', 'b', 0x20000, 'd', 'e', 'f', 'g'}; 35 36 37typedef enum { 38 BUFFER_EMPTY, 39 BUFFER_ONE_BY_ONE, 40 BUFFER_UTF32, 41 BUFFER_UTF16, 42 BUFFER_UTF8, 43 BUFFER_NUM_TYPES, 44} buffer_type_t; 45 46static const char *buffer_names[] = { 47 "empty", 48 "one-by-one", 49 "utf32", 50 "utf16", 51 "utf8" 52}; 53 54typedef struct 55{ 56 hb_buffer_t *buffer; 57} fixture_t; 58 59static void 60fixture_init (fixture_t *fixture, gconstpointer user_data) 61{ 62 hb_buffer_t *b; 63 unsigned int i; 64 65 b = fixture->buffer = hb_buffer_create (); 66 67 switch (GPOINTER_TO_INT (user_data)) 68 { 69 case BUFFER_EMPTY: 70 break; 71 72 case BUFFER_ONE_BY_ONE: 73 for (i = 1; i < G_N_ELEMENTS (utf32) - 1; i++) 74 hb_buffer_add (b, utf32[i], i); 75 break; 76 77 case BUFFER_UTF32: 78 hb_buffer_add_utf32 (b, utf32, G_N_ELEMENTS (utf32), 1, G_N_ELEMENTS (utf32) - 2); 79 break; 80 81 case BUFFER_UTF16: 82 hb_buffer_add_utf16 (b, utf16, G_N_ELEMENTS (utf16), 1, G_N_ELEMENTS (utf16) - 2); 83 break; 84 85 case BUFFER_UTF8: 86 hb_buffer_add_utf8 (b, utf8, G_N_ELEMENTS (utf8), 1, G_N_ELEMENTS (utf8) - 2); 87 break; 88 89 default: 90 g_assert_not_reached (); 91 } 92} 93 94static void 95fixture_finish (fixture_t *fixture, gconstpointer user_data) 96{ 97 hb_buffer_destroy (fixture->buffer); 98} 99 100 101static void 102test_buffer_properties (fixture_t *fixture, gconstpointer user_data) 103{ 104 hb_buffer_t *b = fixture->buffer; 105 hb_unicode_funcs_t *ufuncs; 106 107 /* test default properties */ 108 109 g_assert (hb_buffer_get_unicode_funcs (b) == hb_unicode_funcs_get_default ()); 110 g_assert (hb_buffer_get_direction (b) == HB_DIRECTION_INVALID); 111 g_assert (hb_buffer_get_script (b) == HB_SCRIPT_INVALID); 112 g_assert (hb_buffer_get_language (b) == NULL); 113 g_assert (hb_buffer_get_flags (b) == HB_BUFFER_FLAG_DEFAULT); 114 115 116 /* test property changes are retained */ 117 ufuncs = hb_unicode_funcs_create (NULL); 118 hb_buffer_set_unicode_funcs (b, ufuncs); 119 hb_unicode_funcs_destroy (ufuncs); 120 g_assert (hb_buffer_get_unicode_funcs (b) == ufuncs); 121 122 hb_buffer_set_direction (b, HB_DIRECTION_RTL); 123 g_assert (hb_buffer_get_direction (b) == HB_DIRECTION_RTL); 124 125 hb_buffer_set_script (b, HB_SCRIPT_ARABIC); 126 g_assert (hb_buffer_get_script (b) == HB_SCRIPT_ARABIC); 127 128 hb_buffer_set_language (b, hb_language_from_string ("fa", -1)); 129 g_assert (hb_buffer_get_language (b) == hb_language_from_string ("Fa", -1)); 130 131 hb_buffer_set_flags (b, HB_BUFFER_FLAG_BOT); 132 g_assert (hb_buffer_get_flags (b) == HB_BUFFER_FLAG_BOT); 133 134 135 136 /* test clear clears all properties but unicode_funcs */ 137 138 hb_buffer_clear_contents (b); 139 140 g_assert (hb_buffer_get_unicode_funcs (b) == ufuncs); 141 g_assert (hb_buffer_get_direction (b) == HB_DIRECTION_INVALID); 142 g_assert (hb_buffer_get_script (b) == HB_SCRIPT_INVALID); 143 g_assert (hb_buffer_get_language (b) == NULL); 144 g_assert (hb_buffer_get_flags (b) == HB_BUFFER_FLAGS_DEFAULT); 145 146 147 /* test reset clears all properties */ 148 149 hb_buffer_set_direction (b, HB_DIRECTION_RTL); 150 g_assert (hb_buffer_get_direction (b) == HB_DIRECTION_RTL); 151 152 hb_buffer_set_script (b, HB_SCRIPT_ARABIC); 153 g_assert (hb_buffer_get_script (b) == HB_SCRIPT_ARABIC); 154 155 hb_buffer_set_language (b, hb_language_from_string ("fa", -1)); 156 g_assert (hb_buffer_get_language (b) == hb_language_from_string ("Fa", -1)); 157 158 hb_buffer_set_flags (b, HB_BUFFER_FLAG_BOT); 159 g_assert (hb_buffer_get_flags (b) == HB_BUFFER_FLAG_BOT); 160 161 hb_buffer_reset (b); 162 163 g_assert (hb_buffer_get_unicode_funcs (b) == hb_unicode_funcs_get_default ()); 164 g_assert (hb_buffer_get_direction (b) == HB_DIRECTION_INVALID); 165 g_assert (hb_buffer_get_script (b) == HB_SCRIPT_INVALID); 166 g_assert (hb_buffer_get_language (b) == NULL); 167 g_assert (hb_buffer_get_flags (b) == HB_BUFFER_FLAGS_DEFAULT); 168} 169 170static void 171test_buffer_contents (fixture_t *fixture, gconstpointer user_data) 172{ 173 hb_buffer_t *b = fixture->buffer; 174 unsigned int i, len, len2; 175 buffer_type_t buffer_type = GPOINTER_TO_INT (user_data); 176 hb_glyph_info_t *glyphs; 177 178 if (buffer_type == BUFFER_EMPTY) { 179 g_assert_cmpint (hb_buffer_get_length (b), ==, 0); 180 return; 181 } 182 183 len = hb_buffer_get_length (b); 184 hb_buffer_get_glyph_infos (b, NULL); /* test NULL */ 185 glyphs = hb_buffer_get_glyph_infos (b, &len2); 186 g_assert_cmpint (len, ==, len2); 187 g_assert_cmpint (len, ==, 5); 188 189 for (i = 0; i < len; i++) { 190 g_assert_cmphex (glyphs[i].mask, ==, 1); 191 g_assert_cmphex (glyphs[i].var1.u32, ==, 0); 192 g_assert_cmphex (glyphs[i].var2.u32, ==, 0); 193 } 194 195 for (i = 0; i < len; i++) { 196 unsigned int cluster; 197 cluster = 1+i; 198 if (i >= 2) { 199 if (buffer_type == BUFFER_UTF16) 200 cluster++; 201 else if (buffer_type == BUFFER_UTF8) 202 cluster += 3; 203 } 204 g_assert_cmphex (glyphs[i].codepoint, ==, utf32[1+i]); 205 g_assert_cmphex (glyphs[i].cluster, ==, cluster); 206 } 207 208 /* reverse, test, and reverse back */ 209 210 hb_buffer_reverse (b); 211 for (i = 0; i < len; i++) 212 g_assert_cmphex (glyphs[i].codepoint, ==, utf32[len-i]); 213 214 hb_buffer_reverse (b); 215 for (i = 0; i < len; i++) 216 g_assert_cmphex (glyphs[i].codepoint, ==, utf32[1+i]); 217 218 /* reverse_clusters works same as reverse for now since each codepoint is 219 * in its own cluster */ 220 221 hb_buffer_reverse_clusters (b); 222 for (i = 0; i < len; i++) 223 g_assert_cmphex (glyphs[i].codepoint, ==, utf32[len-i]); 224 225 hb_buffer_reverse_clusters (b); 226 for (i = 0; i < len; i++) 227 g_assert_cmphex (glyphs[i].codepoint, ==, utf32[1+i]); 228 229 /* now form a cluster and test again */ 230 glyphs[2].cluster = glyphs[1].cluster; 231 232 /* reverse, test, and reverse back */ 233 234 hb_buffer_reverse (b); 235 for (i = 0; i < len; i++) 236 g_assert_cmphex (glyphs[i].codepoint, ==, utf32[len-i]); 237 238 hb_buffer_reverse (b); 239 for (i = 0; i < len; i++) 240 g_assert_cmphex (glyphs[i].codepoint, ==, utf32[1+i]); 241 242 /* reverse_clusters twice still should return the original string, 243 * but when applied once, the 1-2 cluster should be retained. */ 244 245 hb_buffer_reverse_clusters (b); 246 for (i = 0; i < len; i++) { 247 unsigned int j = len-1-i; 248 if (j == 1) 249 j = 2; 250 else if (j == 2) 251 j = 1; 252 g_assert_cmphex (glyphs[i].codepoint, ==, utf32[1+j]); 253 } 254 255 hb_buffer_reverse_clusters (b); 256 for (i = 0; i < len; i++) 257 g_assert_cmphex (glyphs[i].codepoint, ==, utf32[1+i]); 258 259 260 /* test setting length */ 261 262 /* enlarge */ 263 g_assert (hb_buffer_set_length (b, 10)); 264 glyphs = hb_buffer_get_glyph_infos (b, NULL); 265 g_assert_cmpint (hb_buffer_get_length (b), ==, 10); 266 for (i = 0; i < 5; i++) 267 g_assert_cmphex (glyphs[i].codepoint, ==, utf32[1+i]); 268 for (i = 5; i < 10; i++) 269 g_assert_cmphex (glyphs[i].codepoint, ==, 0); 270 /* shrink */ 271 g_assert (hb_buffer_set_length (b, 3)); 272 glyphs = hb_buffer_get_glyph_infos (b, NULL); 273 g_assert_cmpint (hb_buffer_get_length (b), ==, 3); 274 for (i = 0; i < 3; i++) 275 g_assert_cmphex (glyphs[i].codepoint, ==, utf32[1+i]); 276 277 278 g_assert (hb_buffer_allocation_successful (b)); 279 280 281 /* test reset clears content */ 282 283 hb_buffer_reset (b); 284 g_assert_cmpint (hb_buffer_get_length (b), ==, 0); 285} 286 287static void 288test_buffer_positions (fixture_t *fixture, gconstpointer user_data) 289{ 290 hb_buffer_t *b = fixture->buffer; 291 unsigned int i, len, len2; 292 hb_glyph_position_t *positions; 293 294 /* Without shaping, positions should all be zero */ 295 len = hb_buffer_get_length (b); 296 hb_buffer_get_glyph_positions (b, NULL); /* test NULL */ 297 positions = hb_buffer_get_glyph_positions (b, &len2); 298 g_assert_cmpint (len, ==, len2); 299 for (i = 0; i < len; i++) { 300 g_assert_cmpint (0, ==, positions[i].x_advance); 301 g_assert_cmpint (0, ==, positions[i].y_advance); 302 g_assert_cmpint (0, ==, positions[i].x_offset); 303 g_assert_cmpint (0, ==, positions[i].y_offset); 304 g_assert_cmpint (0, ==, positions[i].var.i32); 305 } 306 307 /* test reset clears content */ 308 hb_buffer_reset (b); 309 g_assert_cmpint (hb_buffer_get_length (b), ==, 0); 310} 311 312static void 313test_buffer_allocation (fixture_t *fixture, gconstpointer user_data) 314{ 315 hb_buffer_t *b = fixture->buffer; 316 317 g_assert_cmpint (hb_buffer_get_length (b), ==, 0); 318 319 g_assert (hb_buffer_pre_allocate (b, 100)); 320 g_assert_cmpint (hb_buffer_get_length (b), ==, 0); 321 g_assert (hb_buffer_allocation_successful (b)); 322 323 /* lets try a huge allocation, make sure it fails */ 324 g_assert (!hb_buffer_pre_allocate (b, (unsigned int) -1)); 325 g_assert_cmpint (hb_buffer_get_length (b), ==, 0); 326 g_assert (!hb_buffer_allocation_successful (b)); 327 328 /* small one again */ 329 g_assert (hb_buffer_pre_allocate (b, 50)); 330 g_assert_cmpint (hb_buffer_get_length (b), ==, 0); 331 g_assert (!hb_buffer_allocation_successful (b)); 332 333 hb_buffer_reset (b); 334 g_assert (hb_buffer_allocation_successful (b)); 335 336 /* all allocation and size */ 337 g_assert (!hb_buffer_pre_allocate (b, ((unsigned int) -1) / 20 + 1)); 338 g_assert (!hb_buffer_allocation_successful (b)); 339 340 hb_buffer_reset (b); 341 g_assert (hb_buffer_allocation_successful (b)); 342 343 /* technically, this one can actually pass on 64bit machines, but 344 * I'm doubtful that any malloc allows 4GB allocations at a time. 345 * But let's only enable it on a 32-bit machine. */ 346 if (sizeof (long) == 4) { 347 g_assert (!hb_buffer_pre_allocate (b, ((unsigned int) -1) / 20 - 1)); 348 g_assert (!hb_buffer_allocation_successful (b)); 349 } 350 351 hb_buffer_reset (b); 352 g_assert (hb_buffer_allocation_successful (b)); 353} 354 355 356typedef struct { 357 const char utf8[8]; 358 const uint32_t codepoints[8]; 359} utf8_conversion_test_t; 360 361/* note: we skip the first and last byte when adding to buffer */ 362static const utf8_conversion_test_t utf8_conversion_tests[] = { 363 {"a\303\207", {-1}}, 364 {"a\303\207b", {0xC7}}, 365 {"ab\303cd", {'b', -1, 'c'}}, 366 {"ab\303\302\301cd", {'b', -1, -1, -1, 'c'}} 367}; 368 369static void 370test_buffer_utf8_conversion (void) 371{ 372 hb_buffer_t *b; 373 hb_glyph_info_t *glyphs; 374 unsigned int bytes, chars, i, j, len; 375 376 b = hb_buffer_create (); 377 hb_buffer_set_replacement_codepoint (b, (hb_codepoint_t) -1); 378 379 for (i = 0; i < G_N_ELEMENTS (utf8_conversion_tests); i++) 380 { 381 const utf8_conversion_test_t *test = &utf8_conversion_tests[i]; 382 char *escaped; 383 384 escaped = g_strescape (test->utf8, NULL); 385 g_test_message ("UTF-8 test #%d: %s", i, escaped); 386 g_free (escaped); 387 388 bytes = strlen (test->utf8); 389 for (chars = 0; test->codepoints[chars]; chars++) 390 ; 391 392 hb_buffer_clear_contents (b); 393 hb_buffer_add_utf8 (b, test->utf8, bytes, 1, bytes - 2); 394 395 glyphs = hb_buffer_get_glyph_infos (b, &len); 396 g_assert_cmpint (len, ==, chars); 397 for (j = 0; j < chars; j++) 398 g_assert_cmphex (glyphs[j].codepoint, ==, test->codepoints[j]); 399 } 400 401 hb_buffer_destroy (b); 402} 403 404 405 406/* Following test table is adapted from glib/glib/tests/utf8-validate.c 407 * with relicensing permission from Matthias Clasen. */ 408 409typedef struct { 410 const char *utf8; 411 int max_len; 412 unsigned int offset; 413 gboolean valid; 414} utf8_validity_test_t; 415 416static const utf8_validity_test_t utf8_validity_tests[] = { 417 /* some tests to check max_len handling */ 418 /* length 1 */ 419 { "abcde", -1, 5, TRUE }, 420 { "abcde", 3, 3, TRUE }, 421 { "abcde", 5, 5, TRUE }, 422 /* length 2 */ 423 { "\xc2\xa9\xc2\xa9\xc2\xa9", -1, 6, TRUE }, 424 { "\xc2\xa9\xc2\xa9\xc2\xa9", 1, 0, FALSE }, 425 { "\xc2\xa9\xc2\xa9\xc2\xa9", 2, 2, TRUE }, 426 { "\xc2\xa9\xc2\xa9\xc2\xa9", 3, 2, FALSE }, 427 { "\xc2\xa9\xc2\xa9\xc2\xa9", 4, 4, TRUE }, 428 { "\xc2\xa9\xc2\xa9\xc2\xa9", 5, 4, FALSE }, 429 { "\xc2\xa9\xc2\xa9\xc2\xa9", 6, 6, TRUE }, 430 /* length 3 */ 431 { "\xe2\x89\xa0\xe2\x89\xa0", -1, 6, TRUE }, 432 { "\xe2\x89\xa0\xe2\x89\xa0", 1, 0, FALSE }, 433 { "\xe2\x89\xa0\xe2\x89\xa0", 2, 0, FALSE }, 434 { "\xe2\x89\xa0\xe2\x89\xa0", 3, 3, TRUE }, 435 { "\xe2\x89\xa0\xe2\x89\xa0", 4, 3, FALSE }, 436 { "\xe2\x89\xa0\xe2\x89\xa0", 5, 3, FALSE }, 437 { "\xe2\x89\xa0\xe2\x89\xa0", 6, 6, TRUE }, 438 439 /* examples from http://www.cl.cam.ac.uk/~mgk25/ucs/examples/UTF-8-test.txt */ 440 /* greek 'kosme' */ 441 { "\xce\xba\xe1\xbd\xb9\xcf\x83\xce\xbc\xce\xb5", -1, 11, TRUE }, 442 /* first sequence of each length */ 443 { "\x00", -1, 0, TRUE }, 444 { "\xc2\x80", -1, 2, TRUE }, 445 { "\xe0\xa0\x80", -1, 3, TRUE }, 446 { "\xf0\x90\x80\x80", -1, 4, TRUE }, 447 { "\xf8\x88\x80\x80\x80", -1, 0, FALSE }, 448 { "\xfc\x84\x80\x80\x80\x80", -1, 0, FALSE }, 449 /* last sequence of each length */ 450 { "\x7f", -1, 1, TRUE }, 451 { "\xdf\xbf", -1, 2, TRUE }, 452 { "\xef\xbf\xbf", -1, 0, TRUE }, 453 { "\xf4\x8f\xbf\xbf", -1, 0, TRUE }, 454 { "\xf4\x90\xbf\xbf", -1, 0, FALSE }, 455 { "\xf7\xbf\xbf\xbf", -1, 0, FALSE }, 456 { "\xfb\xbf\xbf\xbf\xbf", -1, 0, FALSE }, 457 { "\xfd\xbf\xbf\xbf\xbf\xbf", -1, 0, FALSE }, 458 /* other boundary conditions */ 459 { "\xed\x9f\xbf", -1, 3, TRUE }, 460 { "\xed\xa0\x80", -1, 0, FALSE }, 461 { "\xed\xbf\xbf", -1, 0, FALSE }, 462 { "\xee\x80\x80", -1, 3, TRUE }, 463 { "\xef\xbf\xbd", -1, 3, TRUE }, 464 { "\xf4\x8f\xbf\xbf", -1, 0, TRUE }, 465 /* malformed sequences */ 466 /* continuation bytes */ 467 { "\x80", -1, 0, FALSE }, 468 { "\xbf", -1, 0, FALSE }, 469 { "\x80\xbf", -1, 0, FALSE }, 470 { "\x80\xbf\x80", -1, 0, FALSE }, 471 { "\x80\xbf\x80\xbf", -1, 0, FALSE }, 472 { "\x80\xbf\x80\xbf\x80", -1, 0, FALSE }, 473 { "\x80\xbf\x80\xbf\x80\xbf", -1, 0, FALSE }, 474 { "\x80\xbf\x80\xbf\x80\xbf\x80", -1, 0, FALSE }, 475 476 /* all possible continuation byte */ 477 { "\x80", -1, 0, FALSE }, 478 { "\x81", -1, 0, FALSE }, 479 { "\x82", -1, 0, FALSE }, 480 { "\x83", -1, 0, FALSE }, 481 { "\x84", -1, 0, FALSE }, 482 { "\x85", -1, 0, FALSE }, 483 { "\x86", -1, 0, FALSE }, 484 { "\x87", -1, 0, FALSE }, 485 { "\x88", -1, 0, FALSE }, 486 { "\x89", -1, 0, FALSE }, 487 { "\x8a", -1, 0, FALSE }, 488 { "\x8b", -1, 0, FALSE }, 489 { "\x8c", -1, 0, FALSE }, 490 { "\x8d", -1, 0, FALSE }, 491 { "\x8e", -1, 0, FALSE }, 492 { "\x8f", -1, 0, FALSE }, 493 { "\x90", -1, 0, FALSE }, 494 { "\x91", -1, 0, FALSE }, 495 { "\x92", -1, 0, FALSE }, 496 { "\x93", -1, 0, FALSE }, 497 { "\x94", -1, 0, FALSE }, 498 { "\x95", -1, 0, FALSE }, 499 { "\x96", -1, 0, FALSE }, 500 { "\x97", -1, 0, FALSE }, 501 { "\x98", -1, 0, FALSE }, 502 { "\x99", -1, 0, FALSE }, 503 { "\x9a", -1, 0, FALSE }, 504 { "\x9b", -1, 0, FALSE }, 505 { "\x9c", -1, 0, FALSE }, 506 { "\x9d", -1, 0, FALSE }, 507 { "\x9e", -1, 0, FALSE }, 508 { "\x9f", -1, 0, FALSE }, 509 { "\xa0", -1, 0, FALSE }, 510 { "\xa1", -1, 0, FALSE }, 511 { "\xa2", -1, 0, FALSE }, 512 { "\xa3", -1, 0, FALSE }, 513 { "\xa4", -1, 0, FALSE }, 514 { "\xa5", -1, 0, FALSE }, 515 { "\xa6", -1, 0, FALSE }, 516 { "\xa7", -1, 0, FALSE }, 517 { "\xa8", -1, 0, FALSE }, 518 { "\xa9", -1, 0, FALSE }, 519 { "\xaa", -1, 0, FALSE }, 520 { "\xab", -1, 0, FALSE }, 521 { "\xac", -1, 0, FALSE }, 522 { "\xad", -1, 0, FALSE }, 523 { "\xae", -1, 0, FALSE }, 524 { "\xaf", -1, 0, FALSE }, 525 { "\xb0", -1, 0, FALSE }, 526 { "\xb1", -1, 0, FALSE }, 527 { "\xb2", -1, 0, FALSE }, 528 { "\xb3", -1, 0, FALSE }, 529 { "\xb4", -1, 0, FALSE }, 530 { "\xb5", -1, 0, FALSE }, 531 { "\xb6", -1, 0, FALSE }, 532 { "\xb7", -1, 0, FALSE }, 533 { "\xb8", -1, 0, FALSE }, 534 { "\xb9", -1, 0, FALSE }, 535 { "\xba", -1, 0, FALSE }, 536 { "\xbb", -1, 0, FALSE }, 537 { "\xbc", -1, 0, FALSE }, 538 { "\xbd", -1, 0, FALSE }, 539 { "\xbe", -1, 0, FALSE }, 540 { "\xbf", -1, 0, FALSE }, 541 /* lone start characters */ 542 { "\xc0\x20", -1, 0, FALSE }, 543 { "\xc1\x20", -1, 0, FALSE }, 544 { "\xc2\x20", -1, 0, FALSE }, 545 { "\xc3\x20", -1, 0, FALSE }, 546 { "\xc4\x20", -1, 0, FALSE }, 547 { "\xc5\x20", -1, 0, FALSE }, 548 { "\xc6\x20", -1, 0, FALSE }, 549 { "\xc7\x20", -1, 0, FALSE }, 550 { "\xc8\x20", -1, 0, FALSE }, 551 { "\xc9\x20", -1, 0, FALSE }, 552 { "\xca\x20", -1, 0, FALSE }, 553 { "\xcb\x20", -1, 0, FALSE }, 554 { "\xcc\x20", -1, 0, FALSE }, 555 { "\xcd\x20", -1, 0, FALSE }, 556 { "\xce\x20", -1, 0, FALSE }, 557 { "\xcf\x20", -1, 0, FALSE }, 558 { "\xd0\x20", -1, 0, FALSE }, 559 { "\xd1\x20", -1, 0, FALSE }, 560 { "\xd2\x20", -1, 0, FALSE }, 561 { "\xd3\x20", -1, 0, FALSE }, 562 { "\xd4\x20", -1, 0, FALSE }, 563 { "\xd5\x20", -1, 0, FALSE }, 564 { "\xd6\x20", -1, 0, FALSE }, 565 { "\xd7\x20", -1, 0, FALSE }, 566 { "\xd8\x20", -1, 0, FALSE }, 567 { "\xd9\x20", -1, 0, FALSE }, 568 { "\xda\x20", -1, 0, FALSE }, 569 { "\xdb\x20", -1, 0, FALSE }, 570 { "\xdc\x20", -1, 0, FALSE }, 571 { "\xdd\x20", -1, 0, FALSE }, 572 { "\xde\x20", -1, 0, FALSE }, 573 { "\xdf\x20", -1, 0, FALSE }, 574 { "\xe0\x20", -1, 0, FALSE }, 575 { "\xe1\x20", -1, 0, FALSE }, 576 { "\xe2\x20", -1, 0, FALSE }, 577 { "\xe3\x20", -1, 0, FALSE }, 578 { "\xe4\x20", -1, 0, FALSE }, 579 { "\xe5\x20", -1, 0, FALSE }, 580 { "\xe6\x20", -1, 0, FALSE }, 581 { "\xe7\x20", -1, 0, FALSE }, 582 { "\xe8\x20", -1, 0, FALSE }, 583 { "\xe9\x20", -1, 0, FALSE }, 584 { "\xea\x20", -1, 0, FALSE }, 585 { "\xeb\x20", -1, 0, FALSE }, 586 { "\xec\x20", -1, 0, FALSE }, 587 { "\xed\x20", -1, 0, FALSE }, 588 { "\xee\x20", -1, 0, FALSE }, 589 { "\xef\x20", -1, 0, FALSE }, 590 { "\xf0\x20", -1, 0, FALSE }, 591 { "\xf1\x20", -1, 0, FALSE }, 592 { "\xf2\x20", -1, 0, FALSE }, 593 { "\xf3\x20", -1, 0, FALSE }, 594 { "\xf4\x20", -1, 0, FALSE }, 595 { "\xf5\x20", -1, 0, FALSE }, 596 { "\xf6\x20", -1, 0, FALSE }, 597 { "\xf7\x20", -1, 0, FALSE }, 598 { "\xf8\x20", -1, 0, FALSE }, 599 { "\xf9\x20", -1, 0, FALSE }, 600 { "\xfa\x20", -1, 0, FALSE }, 601 { "\xfb\x20", -1, 0, FALSE }, 602 { "\xfc\x20", -1, 0, FALSE }, 603 { "\xfd\x20", -1, 0, FALSE }, 604 /* missing continuation bytes */ 605 { "\x20\xc0", -1, 1, FALSE }, 606 { "\x20\xe0\x80", -1, 1, FALSE }, 607 { "\x20\xf0\x80\x80", -1, 1, FALSE }, 608 { "\x20\xf8\x80\x80\x80", -1, 1, FALSE }, 609 { "\x20\xfc\x80\x80\x80\x80", -1, 1, FALSE }, 610 { "\x20\xdf", -1, 1, FALSE }, 611 { "\x20\xef\xbf", -1, 1, FALSE }, 612 { "\x20\xf7\xbf\xbf", -1, 1, FALSE }, 613 { "\x20\xfb\xbf\xbf\xbf", -1, 1, FALSE }, 614 { "\x20\xfd\xbf\xbf\xbf\xbf", -1, 1, FALSE }, 615 /* impossible bytes */ 616 { "\x20\xfe\x20", -1, 1, FALSE }, 617 { "\x20\xff\x20", -1, 1, FALSE }, 618 /* overlong sequences */ 619 { "\x20\xc0\xaf\x20", -1, 1, FALSE }, 620 { "\x20\xe0\x80\xaf\x20", -1, 1, FALSE }, 621 { "\x20\xf0\x80\x80\xaf\x20", -1, 1, FALSE }, 622 { "\x20\xf8\x80\x80\x80\xaf\x20", -1, 1, FALSE }, 623 { "\x20\xfc\x80\x80\x80\x80\xaf\x20", -1, 1, FALSE }, 624 { "\x20\xc1\xbf\x20", -1, 1, FALSE }, 625 { "\x20\xe0\x9f\xbf\x20", -1, 1, FALSE }, 626 { "\x20\xf0\x8f\xbf\xbf\x20", -1, 1, FALSE }, 627 { "\x20\xf8\x87\xbf\xbf\xbf\x20", -1, 1, FALSE }, 628 { "\x20\xfc\x83\xbf\xbf\xbf\xbf\x20", -1, 1, FALSE }, 629 { "\x20\xc0\x80\x20", -1, 1, FALSE }, 630 { "\x20\xe0\x80\x80\x20", -1, 1, FALSE }, 631 { "\x20\xf0\x80\x80\x80\x20", -1, 1, FALSE }, 632 { "\x20\xf8\x80\x80\x80\x80\x20", -1, 1, FALSE }, 633 { "\x20\xfc\x80\x80\x80\x80\x80\x20", -1, 1, FALSE }, 634 /* illegal code positions */ 635 { "\x20\xed\xa0\x80\x20", -1, 1, FALSE }, 636 { "\x20\xed\xad\xbf\x20", -1, 1, FALSE }, 637 { "\x20\xed\xae\x80\x20", -1, 1, FALSE }, 638 { "\x20\xed\xaf\xbf\x20", -1, 1, FALSE }, 639 { "\x20\xed\xb0\x80\x20", -1, 1, FALSE }, 640 { "\x20\xed\xbe\x80\x20", -1, 1, FALSE }, 641 { "\x20\xed\xbf\xbf\x20", -1, 1, FALSE }, 642 { "\x20\xed\xa0\x80\xed\xb0\x80\x20", -1, 1, FALSE }, 643 { "\x20\xed\xa0\x80\xed\xbf\xbf\x20", -1, 1, FALSE }, 644 { "\x20\xed\xad\xbf\xed\xb0\x80\x20", -1, 1, FALSE }, 645 { "\x20\xed\xad\xbf\xed\xbf\xbf\x20", -1, 1, FALSE }, 646 { "\x20\xed\xae\x80\xed\xb0\x80\x20", -1, 1, FALSE }, 647 { "\x20\xed\xae\x80\xed\xbf\xbf\x20", -1, 1, FALSE }, 648 { "\x20\xed\xaf\xbf\xed\xb0\x80\x20", -1, 1, FALSE }, 649 { "\x20\xed\xaf\xbf\xed\xbf\xbf\x20", -1, 1, FALSE }, 650#if 0 /* We don't consider U+FFFE / U+FFFF and similar invalid. */ 651 { "\x20\xef\xbf\xbe\x20", -1, 1, FALSE }, 652 { "\x20\xef\xbf\xbf\x20", -1, 1, FALSE }, 653#endif 654 { "", -1, 0, TRUE } 655}; 656 657static void 658test_buffer_utf8_validity (void) 659{ 660 hb_buffer_t *b; 661 unsigned int i; 662 663 b = hb_buffer_create (); 664 hb_buffer_set_replacement_codepoint (b, (hb_codepoint_t) -1); 665 666 for (i = 0; i < G_N_ELEMENTS (utf8_validity_tests); i++) 667 { 668 const utf8_validity_test_t *test = &utf8_validity_tests[i]; 669 unsigned int text_bytes, segment_bytes, j, len; 670 hb_glyph_info_t *glyphs; 671 char *escaped; 672 673 escaped = g_strescape (test->utf8, NULL); 674 g_test_message ("UTF-8 test #%d: %s", i, escaped); 675 g_free (escaped); 676 677 text_bytes = strlen (test->utf8); 678 if (test->max_len == -1) 679 segment_bytes = text_bytes; 680 else 681 segment_bytes = test->max_len; 682 683 hb_buffer_clear_contents (b); 684 hb_buffer_add_utf8 (b, test->utf8, text_bytes, 0, segment_bytes); 685 686 glyphs = hb_buffer_get_glyph_infos (b, &len); 687 for (j = 0; j < len; j++) 688 if (glyphs[j].codepoint == (hb_codepoint_t) -1) 689 break; 690 691 g_assert (test->valid ? j == len : j < len); 692 if (!test->valid) 693 g_assert (glyphs[j].cluster == test->offset); 694 } 695 696 hb_buffer_destroy (b); 697} 698 699 700typedef struct { 701 const uint16_t utf16[8]; 702 const uint32_t codepoints[8]; 703} utf16_conversion_test_t; 704 705/* note: we skip the first and last item from utf16 when adding to buffer */ 706static const utf16_conversion_test_t utf16_conversion_tests[] = { 707 {{0x41, 0x004D, 0x0430, 0x4E8C, 0xD800, 0xDF02, 0x61} , {0x004D, 0x0430, 0x4E8C, 0x10302}}, 708 {{0x41, 0xD800, 0xDF02, 0x61}, {0x10302}}, 709 {{0x41, 0xD800, 0xDF02}, {-1}}, 710 {{0x41, 0x61, 0xD800, 0xDF02}, {0x61, -1}}, 711 {{0x41, 0xD800, 0x61, 0xDF02}, {-1, 0x61}}, 712 {{0x41, 0xDF00, 0x61}, {-1}}, 713 {{0x41, 0x61}, {0}} 714}; 715 716static void 717test_buffer_utf16_conversion (void) 718{ 719 hb_buffer_t *b; 720 unsigned int i; 721 722 b = hb_buffer_create (); 723 hb_buffer_set_replacement_codepoint (b, (hb_codepoint_t) -1); 724 725 for (i = 0; i < G_N_ELEMENTS (utf16_conversion_tests); i++) 726 { 727 const utf16_conversion_test_t *test = &utf16_conversion_tests[i]; 728 unsigned int u_len, chars, j, len; 729 hb_glyph_info_t *glyphs; 730 731 g_test_message ("UTF-16 test #%d", i); 732 733 for (u_len = 0; test->utf16[u_len]; u_len++) 734 ; 735 for (chars = 0; test->codepoints[chars]; chars++) 736 ; 737 738 hb_buffer_clear_contents (b); 739 hb_buffer_add_utf16 (b, test->utf16, u_len, 1, u_len - 2); 740 741 glyphs = hb_buffer_get_glyph_infos (b, &len); 742 g_assert_cmpint (len, ==, chars); 743 for (j = 0; j < chars; j++) 744 g_assert_cmphex (glyphs[j].codepoint, ==, test->codepoints[j]); 745 } 746 747 hb_buffer_destroy (b); 748} 749 750 751typedef struct { 752 const uint32_t utf32[8]; 753 const uint32_t codepoints[8]; 754} utf32_conversion_test_t; 755 756/* note: we skip the first and last item from utf32 when adding to buffer */ 757static const utf32_conversion_test_t utf32_conversion_tests[] = { 758 {{0x41, 0x004D, 0x0430, 0x4E8C, 0xD800, 0xDF02, 0x61} , {0x004D, 0x0430, 0x4E8C, -3, -3}}, 759 {{0x41, 0x004D, 0x0430, 0x4E8C, 0x10302, 0x61} , {0x004D, 0x0430, 0x4E8C, 0x10302}}, 760 {{0x41, 0xD800, 0xDF02, 0x61}, {-3, -3}}, 761 {{0x41, 0xD800, 0xDF02}, {-3}}, 762 {{0x41, 0x61, 0xD800, 0xDF02}, {0x61, -3}}, 763 {{0x41, 0xD800, 0x61, 0xDF02}, {-3, 0x61}}, 764 {{0x41, 0xDF00, 0x61}, {-3}}, 765 {{0x41, 0x10FFFF, 0x61}, {0x10FFFF}}, 766 {{0x41, 0x110000, 0x61}, {-3}}, 767 {{0x41, 0x61}, {0}} 768}; 769 770static void 771test_buffer_utf32_conversion (void) 772{ 773 hb_buffer_t *b; 774 unsigned int i; 775 776 b = hb_buffer_create (); 777 hb_buffer_set_replacement_codepoint (b, (hb_codepoint_t) -3); 778 779 for (i = 0; i < G_N_ELEMENTS (utf32_conversion_tests); i++) 780 { 781 const utf32_conversion_test_t *test = &utf32_conversion_tests[i]; 782 unsigned int u_len, chars, j, len; 783 hb_glyph_info_t *glyphs; 784 785 g_test_message ("UTF-32 test #%d", i); 786 787 for (u_len = 0; test->utf32[u_len]; u_len++) 788 ; 789 for (chars = 0; test->codepoints[chars]; chars++) 790 ; 791 792 hb_buffer_clear_contents (b); 793 hb_buffer_add_utf32 (b, test->utf32, u_len, 1, u_len - 2); 794 795 glyphs = hb_buffer_get_glyph_infos (b, &len); 796 g_assert_cmpint (len, ==, chars); 797 for (j = 0; j < chars; j++) 798 g_assert_cmphex (glyphs[j].codepoint, ==, test->codepoints[j]); 799 } 800 801 hb_buffer_destroy (b); 802} 803 804 805static void 806test_empty (hb_buffer_t *b) 807{ 808 g_assert_cmpint (hb_buffer_get_length (b), ==, 0); 809 g_assert (!hb_buffer_get_glyph_infos (b, NULL)); 810 g_assert (!hb_buffer_get_glyph_positions (b, NULL)); 811} 812 813static void 814test_buffer_empty (void) 815{ 816 hb_buffer_t *b = hb_buffer_get_empty (); 817 818 g_assert (hb_buffer_get_empty ()); 819 g_assert (hb_buffer_get_empty () == b); 820 821 g_assert (!hb_buffer_allocation_successful (b)); 822 823 test_empty (b); 824 825 hb_buffer_add_utf32 (b, utf32, G_N_ELEMENTS (utf32), 1, G_N_ELEMENTS (utf32) - 2); 826 827 test_empty (b); 828 829 hb_buffer_reverse (b); 830 hb_buffer_reverse_clusters (b); 831 832 g_assert (!hb_buffer_set_length (b, 10)); 833 834 test_empty (b); 835 836 g_assert (hb_buffer_set_length (b, 0)); 837 838 test_empty (b); 839 840 g_assert (!hb_buffer_allocation_successful (b)); 841 842 hb_buffer_reset (b); 843 844 test_empty (b); 845 846 g_assert (!hb_buffer_allocation_successful (b)); 847} 848 849int 850main (int argc, char **argv) 851{ 852 unsigned int i; 853 854 hb_test_init (&argc, &argv); 855 856 for (i = 0; i < BUFFER_NUM_TYPES; i++) 857 { 858 const void *buffer_type = GINT_TO_POINTER (i); 859 const char *buffer_name = buffer_names[i]; 860 861 hb_test_add_fixture_flavor (fixture, buffer_type, buffer_name, test_buffer_properties); 862 hb_test_add_fixture_flavor (fixture, buffer_type, buffer_name, test_buffer_contents); 863 hb_test_add_fixture_flavor (fixture, buffer_type, buffer_name, test_buffer_positions); 864 } 865 866 hb_test_add_fixture (fixture, GINT_TO_POINTER (BUFFER_EMPTY), test_buffer_allocation); 867 868 hb_test_add (test_buffer_utf8_conversion); 869 hb_test_add (test_buffer_utf8_validity); 870 hb_test_add (test_buffer_utf16_conversion); 871 hb_test_add (test_buffer_utf32_conversion); 872 hb_test_add (test_buffer_empty); 873 874 return hb_test_run(); 875} 876