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 32 static const char utf8[10] = "ab\360\240\200\200defg"; 33 static const uint16_t utf16[8] = {'a', 'b', 0xD840, 0xDC00, 'd', 'e', 'f', 'g'}; 34 static const uint32_t utf32[7] = {'a', 'b', 0x20000, 'd', 'e', 'f', 'g'}; 35 36 37 typedef 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 46 static const char *buffer_names[] = { 47 "empty", 48 "one-by-one", 49 "utf32", 50 "utf16", 51 "utf8" 52 }; 53 54 typedef struct 55 { 56 hb_buffer_t *buffer; 57 } fixture_t; 58 59 static void 60 fixture_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 94 static void 95 fixture_finish (fixture_t *fixture, gconstpointer user_data) 96 { 97 hb_buffer_destroy (fixture->buffer); 98 } 99 100 101 static void 102 test_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_FLAGS_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 } 169 170 static void 171 test_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 } 286 287 static void 288 test_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 } 311 312 static void 313 test_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 } 354 355 356 typedef 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 */ 362 static 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 }; 368 369 static void 370 test_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 (); 377 378 for (i = 0; i < G_N_ELEMENTS (utf8_conversion_tests); i++) 379 { 380 const utf8_conversion_test_t *test = &utf8_conversion_tests[i]; 381 char *escaped; 382 383 escaped = g_strescape (test->utf8, NULL); 384 g_test_message ("UTF-8 test #%d: %s", i, escaped); 385 g_free (escaped); 386 387 bytes = strlen (test->utf8); 388 for (chars = 0; test->codepoints[chars]; chars++) 389 ; 390 391 hb_buffer_reset (b); 392 hb_buffer_add_utf8 (b, test->utf8, bytes, 1, bytes - 2); 393 394 glyphs = hb_buffer_get_glyph_infos (b, &len); 395 g_assert_cmpint (len, ==, chars); 396 for (j = 0; j < chars; j++) 397 g_assert_cmphex (glyphs[j].codepoint, ==, test->codepoints[j]); 398 } 399 400 hb_buffer_destroy (b); 401 } 402 403 404 405 /* Following test table is adapted from glib/glib/tests/utf8-validate.c 406 * with relicensing permission from Matthias Clasen. */ 407 408 typedef struct { 409 const char *utf8; 410 int max_len; 411 unsigned int offset; 412 gboolean valid; 413 } utf8_validity_test_t; 414 415 static const utf8_validity_test_t utf8_validity_tests[] = { 416 /* some tests to check max_len handling */ 417 /* length 1 */ 418 { "abcde", -1, 5, TRUE }, 419 { "abcde", 3, 3, TRUE }, 420 { "abcde", 5, 5, TRUE }, 421 /* length 2 */ 422 { "\xc2\xa9\xc2\xa9\xc2\xa9", -1, 6, TRUE }, 423 { "\xc2\xa9\xc2\xa9\xc2\xa9", 1, 0, FALSE }, 424 { "\xc2\xa9\xc2\xa9\xc2\xa9", 2, 2, TRUE }, 425 { "\xc2\xa9\xc2\xa9\xc2\xa9", 3, 2, FALSE }, 426 { "\xc2\xa9\xc2\xa9\xc2\xa9", 4, 4, TRUE }, 427 { "\xc2\xa9\xc2\xa9\xc2\xa9", 5, 4, FALSE }, 428 { "\xc2\xa9\xc2\xa9\xc2\xa9", 6, 6, TRUE }, 429 /* length 3 */ 430 { "\xe2\x89\xa0\xe2\x89\xa0", -1, 6, TRUE }, 431 { "\xe2\x89\xa0\xe2\x89\xa0", 1, 0, FALSE }, 432 { "\xe2\x89\xa0\xe2\x89\xa0", 2, 0, FALSE }, 433 { "\xe2\x89\xa0\xe2\x89\xa0", 3, 3, TRUE }, 434 { "\xe2\x89\xa0\xe2\x89\xa0", 4, 3, FALSE }, 435 { "\xe2\x89\xa0\xe2\x89\xa0", 5, 3, FALSE }, 436 { "\xe2\x89\xa0\xe2\x89\xa0", 6, 6, TRUE }, 437 438 /* examples from http://www.cl.cam.ac.uk/~mgk25/ucs/examples/UTF-8-test.txt */ 439 /* greek 'kosme' */ 440 { "\xce\xba\xe1\xbd\xb9\xcf\x83\xce\xbc\xce\xb5", -1, 11, TRUE }, 441 /* first sequence of each length */ 442 { "\x00", -1, 0, TRUE }, 443 { "\xc2\x80", -1, 2, TRUE }, 444 { "\xe0\xa0\x80", -1, 3, TRUE }, 445 { "\xf0\x90\x80\x80", -1, 4, TRUE }, 446 { "\xf8\x88\x80\x80\x80", -1, 0, FALSE }, 447 { "\xfc\x84\x80\x80\x80\x80", -1, 0, FALSE }, 448 /* last sequence of each length */ 449 { "\x7f", -1, 1, TRUE }, 450 { "\xdf\xbf", -1, 2, TRUE }, 451 { "\xef\xbf\xbf", -1, 0, TRUE }, 452 { "\xf7\xbf\xbf\xbf", -1, 0, TRUE }, 453 { "\xfb\xbf\xbf\xbf\xbf", -1, 0, FALSE }, 454 { "\xfd\xbf\xbf\xbf\xbf\xbf", -1, 0, FALSE }, 455 /* other boundary conditions */ 456 { "\xed\x9f\xbf", -1, 3, TRUE }, 457 { "\xee\x80\x80", -1, 3, TRUE }, 458 { "\xef\xbf\xbd", -1, 3, TRUE }, 459 { "\xf4\x8f\xbf\xbf", -1, 0, TRUE }, 460 /* malformed sequences */ 461 /* continuation bytes */ 462 { "\x80", -1, 0, FALSE }, 463 { "\xbf", -1, 0, FALSE }, 464 { "\x80\xbf", -1, 0, FALSE }, 465 { "\x80\xbf\x80", -1, 0, FALSE }, 466 { "\x80\xbf\x80\xbf", -1, 0, FALSE }, 467 { "\x80\xbf\x80\xbf\x80", -1, 0, FALSE }, 468 { "\x80\xbf\x80\xbf\x80\xbf", -1, 0, FALSE }, 469 { "\x80\xbf\x80\xbf\x80\xbf\x80", -1, 0, FALSE }, 470 471 /* all possible continuation byte */ 472 { "\x80", -1, 0, FALSE }, 473 { "\x81", -1, 0, FALSE }, 474 { "\x82", -1, 0, FALSE }, 475 { "\x83", -1, 0, FALSE }, 476 { "\x84", -1, 0, FALSE }, 477 { "\x85", -1, 0, FALSE }, 478 { "\x86", -1, 0, FALSE }, 479 { "\x87", -1, 0, FALSE }, 480 { "\x88", -1, 0, FALSE }, 481 { "\x89", -1, 0, FALSE }, 482 { "\x8a", -1, 0, FALSE }, 483 { "\x8b", -1, 0, FALSE }, 484 { "\x8c", -1, 0, FALSE }, 485 { "\x8d", -1, 0, FALSE }, 486 { "\x8e", -1, 0, FALSE }, 487 { "\x8f", -1, 0, FALSE }, 488 { "\x90", -1, 0, FALSE }, 489 { "\x91", -1, 0, FALSE }, 490 { "\x92", -1, 0, FALSE }, 491 { "\x93", -1, 0, FALSE }, 492 { "\x94", -1, 0, FALSE }, 493 { "\x95", -1, 0, FALSE }, 494 { "\x96", -1, 0, FALSE }, 495 { "\x97", -1, 0, FALSE }, 496 { "\x98", -1, 0, FALSE }, 497 { "\x99", -1, 0, FALSE }, 498 { "\x9a", -1, 0, FALSE }, 499 { "\x9b", -1, 0, FALSE }, 500 { "\x9c", -1, 0, FALSE }, 501 { "\x9d", -1, 0, FALSE }, 502 { "\x9e", -1, 0, FALSE }, 503 { "\x9f", -1, 0, FALSE }, 504 { "\xa0", -1, 0, FALSE }, 505 { "\xa1", -1, 0, FALSE }, 506 { "\xa2", -1, 0, FALSE }, 507 { "\xa3", -1, 0, FALSE }, 508 { "\xa4", -1, 0, FALSE }, 509 { "\xa5", -1, 0, FALSE }, 510 { "\xa6", -1, 0, FALSE }, 511 { "\xa7", -1, 0, FALSE }, 512 { "\xa8", -1, 0, FALSE }, 513 { "\xa9", -1, 0, FALSE }, 514 { "\xaa", -1, 0, FALSE }, 515 { "\xab", -1, 0, FALSE }, 516 { "\xac", -1, 0, FALSE }, 517 { "\xad", -1, 0, FALSE }, 518 { "\xae", -1, 0, FALSE }, 519 { "\xaf", -1, 0, FALSE }, 520 { "\xb0", -1, 0, FALSE }, 521 { "\xb1", -1, 0, FALSE }, 522 { "\xb2", -1, 0, FALSE }, 523 { "\xb3", -1, 0, FALSE }, 524 { "\xb4", -1, 0, FALSE }, 525 { "\xb5", -1, 0, FALSE }, 526 { "\xb6", -1, 0, FALSE }, 527 { "\xb7", -1, 0, FALSE }, 528 { "\xb8", -1, 0, FALSE }, 529 { "\xb9", -1, 0, FALSE }, 530 { "\xba", -1, 0, FALSE }, 531 { "\xbb", -1, 0, FALSE }, 532 { "\xbc", -1, 0, FALSE }, 533 { "\xbd", -1, 0, FALSE }, 534 { "\xbe", -1, 0, FALSE }, 535 { "\xbf", -1, 0, FALSE }, 536 /* lone start characters */ 537 { "\xc0\x20", -1, 0, FALSE }, 538 { "\xc1\x20", -1, 0, FALSE }, 539 { "\xc2\x20", -1, 0, FALSE }, 540 { "\xc3\x20", -1, 0, FALSE }, 541 { "\xc4\x20", -1, 0, FALSE }, 542 { "\xc5\x20", -1, 0, FALSE }, 543 { "\xc6\x20", -1, 0, FALSE }, 544 { "\xc7\x20", -1, 0, FALSE }, 545 { "\xc8\x20", -1, 0, FALSE }, 546 { "\xc9\x20", -1, 0, FALSE }, 547 { "\xca\x20", -1, 0, FALSE }, 548 { "\xcb\x20", -1, 0, FALSE }, 549 { "\xcc\x20", -1, 0, FALSE }, 550 { "\xcd\x20", -1, 0, FALSE }, 551 { "\xce\x20", -1, 0, FALSE }, 552 { "\xcf\x20", -1, 0, FALSE }, 553 { "\xd0\x20", -1, 0, FALSE }, 554 { "\xd1\x20", -1, 0, FALSE }, 555 { "\xd2\x20", -1, 0, FALSE }, 556 { "\xd3\x20", -1, 0, FALSE }, 557 { "\xd4\x20", -1, 0, FALSE }, 558 { "\xd5\x20", -1, 0, FALSE }, 559 { "\xd6\x20", -1, 0, FALSE }, 560 { "\xd7\x20", -1, 0, FALSE }, 561 { "\xd8\x20", -1, 0, FALSE }, 562 { "\xd9\x20", -1, 0, FALSE }, 563 { "\xda\x20", -1, 0, FALSE }, 564 { "\xdb\x20", -1, 0, FALSE }, 565 { "\xdc\x20", -1, 0, FALSE }, 566 { "\xdd\x20", -1, 0, FALSE }, 567 { "\xde\x20", -1, 0, FALSE }, 568 { "\xdf\x20", -1, 0, FALSE }, 569 { "\xe0\x20", -1, 0, FALSE }, 570 { "\xe1\x20", -1, 0, FALSE }, 571 { "\xe2\x20", -1, 0, FALSE }, 572 { "\xe3\x20", -1, 0, FALSE }, 573 { "\xe4\x20", -1, 0, FALSE }, 574 { "\xe5\x20", -1, 0, FALSE }, 575 { "\xe6\x20", -1, 0, FALSE }, 576 { "\xe7\x20", -1, 0, FALSE }, 577 { "\xe8\x20", -1, 0, FALSE }, 578 { "\xe9\x20", -1, 0, FALSE }, 579 { "\xea\x20", -1, 0, FALSE }, 580 { "\xeb\x20", -1, 0, FALSE }, 581 { "\xec\x20", -1, 0, FALSE }, 582 { "\xed\x20", -1, 0, FALSE }, 583 { "\xee\x20", -1, 0, FALSE }, 584 { "\xef\x20", -1, 0, FALSE }, 585 { "\xf0\x20", -1, 0, FALSE }, 586 { "\xf1\x20", -1, 0, FALSE }, 587 { "\xf2\x20", -1, 0, FALSE }, 588 { "\xf3\x20", -1, 0, FALSE }, 589 { "\xf4\x20", -1, 0, FALSE }, 590 { "\xf5\x20", -1, 0, FALSE }, 591 { "\xf6\x20", -1, 0, FALSE }, 592 { "\xf7\x20", -1, 0, FALSE }, 593 { "\xf8\x20", -1, 0, FALSE }, 594 { "\xf9\x20", -1, 0, FALSE }, 595 { "\xfa\x20", -1, 0, FALSE }, 596 { "\xfb\x20", -1, 0, FALSE }, 597 { "\xfc\x20", -1, 0, FALSE }, 598 { "\xfd\x20", -1, 0, FALSE }, 599 /* missing continuation bytes */ 600 { "\x20\xc0", -1, 1, FALSE }, 601 { "\x20\xe0\x80", -1, 1, FALSE }, 602 { "\x20\xf0\x80\x80", -1, 1, FALSE }, 603 { "\x20\xf8\x80\x80\x80", -1, 1, FALSE }, 604 { "\x20\xfc\x80\x80\x80\x80", -1, 1, FALSE }, 605 { "\x20\xdf", -1, 1, FALSE }, 606 { "\x20\xef\xbf", -1, 1, FALSE }, 607 { "\x20\xf7\xbf\xbf", -1, 1, FALSE }, 608 { "\x20\xfb\xbf\xbf\xbf", -1, 1, FALSE }, 609 { "\x20\xfd\xbf\xbf\xbf\xbf", -1, 1, FALSE }, 610 /* impossible bytes */ 611 { "\x20\xfe\x20", -1, 1, FALSE }, 612 { "\x20\xff\x20", -1, 1, FALSE }, 613 #if 0 614 /* XXX fix these, or document that we don't detect them? */ 615 /* overlong sequences */ 616 { "\x20\xc0\xaf\x20", -1, 1, FALSE }, 617 { "\x20\xe0\x80\xaf\x20", -1, 1, FALSE }, 618 { "\x20\xf0\x80\x80\xaf\x20", -1, 1, FALSE }, 619 { "\x20\xf8\x80\x80\x80\xaf\x20", -1, 1, FALSE }, 620 { "\x20\xfc\x80\x80\x80\x80\xaf\x20", -1, 1, FALSE }, 621 { "\x20\xc1\xbf\x20", -1, 1, FALSE }, 622 { "\x20\xe0\x9f\xbf\x20", -1, 1, FALSE }, 623 { "\x20\xf0\x8f\xbf\xbf\x20", -1, 1, FALSE }, 624 { "\x20\xf8\x87\xbf\xbf\xbf\x20", -1, 1, FALSE }, 625 { "\x20\xfc\x83\xbf\xbf\xbf\xbf\x20", -1, 1, FALSE }, 626 { "\x20\xc0\x80\x20", -1, 1, FALSE }, 627 { "\x20\xe0\x80\x80\x20", -1, 1, FALSE }, 628 { "\x20\xf0\x80\x80\x80\x20", -1, 1, FALSE }, 629 { "\x20\xf8\x80\x80\x80\x80\x20", -1, 1, FALSE }, 630 { "\x20\xfc\x80\x80\x80\x80\x80\x20", -1, 1, FALSE }, 631 /* illegal code positions */ 632 { "\x20\xed\xa0\x80\x20", -1, 1, FALSE }, 633 { "\x20\xed\xad\xbf\x20", -1, 1, FALSE }, 634 { "\x20\xed\xae\x80\x20", -1, 1, FALSE }, 635 { "\x20\xed\xaf\xbf\x20", -1, 1, FALSE }, 636 { "\x20\xed\xb0\x80\x20", -1, 1, FALSE }, 637 { "\x20\xed\xbe\x80\x20", -1, 1, FALSE }, 638 { "\x20\xed\xbf\xbf\x20", -1, 1, FALSE }, 639 { "\x20\xed\xa0\x80\xed\xb0\x80\x20", -1, 1, FALSE }, 640 { "\x20\xed\xa0\x80\xed\xbf\xbf\x20", -1, 1, FALSE }, 641 { "\x20\xed\xad\xbf\xed\xb0\x80\x20", -1, 1, FALSE }, 642 { "\x20\xed\xad\xbf\xed\xbf\xbf\x20", -1, 1, FALSE }, 643 { "\x20\xed\xae\x80\xed\xb0\x80\x20", -1, 1, FALSE }, 644 { "\x20\xed\xae\x80\xed\xbf\xbf\x20", -1, 1, FALSE }, 645 { "\x20\xed\xaf\xbf\xed\xb0\x80\x20", -1, 1, FALSE }, 646 { "\x20\xed\xaf\xbf\xed\xbf\xbf\x20", -1, 1, FALSE }, 647 { "\x20\xef\xbf\xbe\x20", -1, 1, FALSE }, 648 { "\x20\xef\xbf\xbf\x20", -1, 1, FALSE }, 649 #endif 650 { "", -1, 0, TRUE } 651 }; 652 653 static void 654 test_buffer_utf8_validity (void) 655 { 656 hb_buffer_t *b; 657 unsigned int i; 658 659 b = hb_buffer_create (); 660 661 for (i = 0; i < G_N_ELEMENTS (utf8_validity_tests); i++) 662 { 663 const utf8_validity_test_t *test = &utf8_validity_tests[i]; 664 unsigned int text_bytes, segment_bytes, j, len; 665 hb_glyph_info_t *glyphs; 666 char *escaped; 667 668 escaped = g_strescape (test->utf8, NULL); 669 g_test_message ("UTF-8 test #%d: %s", i, escaped); 670 g_free (escaped); 671 672 text_bytes = strlen (test->utf8); 673 if (test->max_len == -1) 674 segment_bytes = text_bytes; 675 else 676 segment_bytes = test->max_len; 677 678 hb_buffer_reset (b); 679 hb_buffer_add_utf8 (b, test->utf8, text_bytes, 0, segment_bytes); 680 681 glyphs = hb_buffer_get_glyph_infos (b, &len); 682 for (j = 0; j < len; j++) 683 if (glyphs[j].codepoint == (hb_codepoint_t) -1) 684 break; 685 686 g_assert (test->valid ? j == len : j < len); 687 if (!test->valid) 688 g_assert (glyphs[j].cluster == test->offset); 689 } 690 691 hb_buffer_destroy (b); 692 } 693 694 695 typedef struct { 696 const uint16_t utf16[8]; 697 const uint32_t codepoints[8]; 698 } utf16_conversion_test_t; 699 700 /* note: we skip the first and last item from utf16 when adding to buffer */ 701 static const utf16_conversion_test_t utf16_conversion_tests[] = { 702 {{0x41, 0x004D, 0x0430, 0x4E8C, 0xD800, 0xDF02, 0x61} , {0x004D, 0x0430, 0x4E8C, 0x10302}}, 703 {{0x41, 0xD800, 0xDF02, 0x61}, {0x10302}}, 704 {{0x41, 0xD800, 0xDF02}, {-1}}, 705 {{0x41, 0x61, 0xD800, 0xDF02}, {0x61, -1}}, 706 {{0x41, 0xD800, 0x61, 0xDF02}, {-1, 0x61}}, 707 {{0x41, 0x61}, {}} 708 }; 709 710 static void 711 test_buffer_utf16_conversion (void) 712 { 713 hb_buffer_t *b; 714 unsigned int i; 715 716 b = hb_buffer_create (); 717 718 for (i = 0; i < G_N_ELEMENTS (utf16_conversion_tests); i++) 719 { 720 const utf16_conversion_test_t *test = &utf16_conversion_tests[i]; 721 unsigned int u_len, chars, j, len; 722 hb_glyph_info_t *glyphs; 723 724 g_test_message ("UTF-16 test #%d", i); 725 726 for (u_len = 0; test->utf16[u_len]; u_len++) 727 ; 728 for (chars = 0; test->codepoints[chars]; chars++) 729 ; 730 731 hb_buffer_reset (b); 732 hb_buffer_add_utf16 (b, test->utf16, u_len, 1, u_len - 2); 733 734 glyphs = hb_buffer_get_glyph_infos (b, &len); 735 g_assert_cmpint (len, ==, chars); 736 for (j = 0; j < chars; j++) 737 g_assert_cmphex (glyphs[j].codepoint, ==, test->codepoints[j]); 738 } 739 740 hb_buffer_destroy (b); 741 } 742 743 static void 744 test_empty (hb_buffer_t *b) 745 { 746 g_assert_cmpint (hb_buffer_get_length (b), ==, 0); 747 g_assert (!hb_buffer_get_glyph_infos (b, NULL)); 748 g_assert (!hb_buffer_get_glyph_positions (b, NULL)); 749 } 750 751 static void 752 test_buffer_empty (void) 753 { 754 hb_buffer_t *b = hb_buffer_get_empty (); 755 756 g_assert (hb_buffer_get_empty ()); 757 g_assert (hb_buffer_get_empty () == b); 758 759 g_assert (!hb_buffer_allocation_successful (b)); 760 761 test_empty (b); 762 763 hb_buffer_add_utf32 (b, utf32, G_N_ELEMENTS (utf32), 1, G_N_ELEMENTS (utf32) - 2); 764 765 test_empty (b); 766 767 hb_buffer_reverse (b); 768 hb_buffer_reverse_clusters (b); 769 770 g_assert (!hb_buffer_set_length (b, 10)); 771 772 test_empty (b); 773 774 g_assert (hb_buffer_set_length (b, 0)); 775 776 test_empty (b); 777 778 g_assert (!hb_buffer_allocation_successful (b)); 779 780 hb_buffer_reset (b); 781 782 test_empty (b); 783 784 g_assert (!hb_buffer_allocation_successful (b)); 785 } 786 787 int 788 main (int argc, char **argv) 789 { 790 unsigned int i; 791 792 hb_test_init (&argc, &argv); 793 794 for (i = 0; i < BUFFER_NUM_TYPES; i++) 795 { 796 const void *buffer_type = GINT_TO_POINTER (i); 797 const char *buffer_name = buffer_names[i]; 798 799 hb_test_add_fixture_flavor (fixture, buffer_type, buffer_name, test_buffer_properties); 800 hb_test_add_fixture_flavor (fixture, buffer_type, buffer_name, test_buffer_contents); 801 hb_test_add_fixture_flavor (fixture, buffer_type, buffer_name, test_buffer_positions); 802 } 803 804 hb_test_add_fixture (fixture, GINT_TO_POINTER (BUFFER_EMPTY), test_buffer_allocation); 805 806 hb_test_add (test_buffer_utf8_conversion); 807 hb_test_add (test_buffer_utf8_validity); 808 hb_test_add (test_buffer_utf16_conversion); 809 hb_test_add (test_buffer_empty); 810 811 return hb_test_run(); 812 } 813
