icuSources/test/cintltst/spooftest.c

   1 /********************************************************************
   2  * COPYRIGHT:
   3  * Copyright (c) 2009-2011, International Business Machines Corporation and
   4  * others. All Rights Reserved.
   5  ********************************************************************/
   6 /********************************************************************************
   7 *
   8 * File spooftest.c
   9 *
  10 *********************************************************************************/
  11 /*C API TEST for the uspoof Unicode Indentifier Spoofing and Security API */
  12 /**
  13 *   This is an API test for ICU spoof detection in plain C.  It doesn't test very many cases, and doesn't
  14 *   try to test the full functionality.  It just calls each function and verifies that it
  15 *   works on a basic level.
  16 *
  17 *   More complete testing of spoof detection functionality is done with the C++ tests.
  18 **/
  19
  20 #include "unicode/utypes.h"
  21 #if !UCONFIG_NO_REGULAR_EXPRESSIONS && !UCONFIG_NO_NORMALIZATION
  22
  23 #include <stdlib.h>
  24 #include <stdio.h>
  25 #include <string.h>
  26 #include "unicode/uspoof.h"
  27 #include "unicode/ustring.h"
  28 #include "unicode/uset.h"
  29 #include "cintltst.h"
  30
  31 #define TEST_ASSERT_SUCCESS(status) {if (U_FAILURE(status)) { \
  32     log_err_status(status, "Failure at file %s, line %d, error = %s\n", __FILE__, __LINE__, u_errorName(status));}}
  33
  34 #define TEST_ASSERT(expr) {if ((expr)==FALSE) { \
  35 log_err("Test Failure at file %s, line %d: \"%s\" is false.\n", __FILE__, __LINE__, #expr);};}
  36
  37 #define TEST_ASSERT_EQ(a, b) { if ((a) != (b)) { \
  38     log_err("Test Failure at file %s, line %d: \"%s\" (%d) != \"%s\" (%d) \n", \
  39              __FILE__, __LINE__, #a, (a), #b, (b)); }}
  40
  41 #define TEST_ASSERT_NE(a, b) { if ((a) == (b)) { \
  42     log_err("Test Failure at file %s, line %d: \"%s\" (%d) == \"%s\" (%d) \n", \
  43              __FILE__, __LINE__, #a, (a), #b, (b)); }}
  44
  45
  46 /*
  47  *   TEST_SETUP and TEST_TEARDOWN
  48  *         macros to handle the boilerplate around setting up test case.
  49  *         Put arbitrary test code between SETUP and TEARDOWN.
  50  *         "sc" is the ready-to-go  SpoofChecker for use in the tests.
  51  */
  52 #define TEST_SETUP {  \
  53     UErrorCode status = U_ZERO_ERROR; \
  54     USpoofChecker *sc;     \
  55     sc = uspoof_open(&status);  \
  56     TEST_ASSERT_SUCCESS(status);   \
  57     if (U_SUCCESS(status)){
  58
  59 #define TEST_TEARDOWN  \
  60     }  \
  61     TEST_ASSERT_SUCCESS(status);  \
  62     uspoof_close(sc);  \
  63 }
  64
  65
  66 static void TestUSpoofCAPI(void);
  67
  68 void addUSpoofTest(TestNode** root);
  69
  70 void addUSpoofTest(TestNode** root)
  71 {
  72 #if !UCONFIG_NO_FILE_IO
  73     addTest(root, &TestUSpoofCAPI, "uspoof/TestUSpoofCAPI");
  74 #endif
  75 }
  76
  77 /*
  78  *  Identifiers for verifying that spoof checking is minimally alive and working.
  79  */
  80 const UChar goodLatin[] = {(UChar)0x75, (UChar)0x7a, 0};    /* "uz", all ASCII             */
  81                                                             /*   (not confusable)          */
  82 const UChar scMixed[]  = {(UChar)0x73, (UChar)0x0441, 0};   /* "sc", with Cyrillic 'c'     */
  83                                                             /*   (mixed script, confusable */
  84
  85 const UChar scLatin[]  = {(UChar)0x73,  (UChar)0x63, 0};    /* "sc", plain ascii.        */
  86 const UChar goodCyrl[] = {(UChar)0x438, (UChar)0x43B, 0};   /* Plain lower case Cyrillic letters,
  87                                                                no latin confusables         */
  88
  89 const UChar goodGreek[]   = {(UChar)0x3c0, (UChar)0x3c6, 0};   /* Plain lower case Greek letters */
  90
  91 const UChar lll_Latin_a[] = {(UChar)0x6c, (UChar)0x49, (UChar)0x31, 0};   /* lI1, all ASCII */
  92
  93                              /*  Full-width I, Small Roman Numeral fifty, Latin Cap Letter IOTA*/
  94 const UChar lll_Latin_b[] = {(UChar)0xff29, (UChar)0x217c, (UChar)0x196, 0};
  95
  96 const UChar lll_Cyrl[]    = {(UChar)0x0406, (UChar)0x04C0, (UChar)0x31, 0};
  97
  98 /* The skeleton transform for all of thes 'lll' lookalikes is all lower case l. */
  99 const UChar lll_Skel[]    = {(UChar)0x6c, (UChar)0x6c, (UChar)0x6c, 0};
 100
 101 const UChar han_Hiragana[] = {(UChar)0x3086, (UChar)0x308A, (UChar)0x0020, (UChar)0x77F3, (UChar)0x7530, 0};
 102
 103 /* Provide better code coverage */
 104 const char goodLatinUTF8[]    = {0x75, 0x77, 0};
 105 /*
 106  *   Spoof Detction C API Tests
 107  */
 108 static void TestUSpoofCAPI(void) {
 109
 110     /*
 111      *  basic uspoof_open().
 112      */
 113     {
 114         USpoofChecker *sc;
 115         UErrorCode  status = U_ZERO_ERROR;
 116         sc = uspoof_open(&status);
 117         TEST_ASSERT_SUCCESS(status);
 118         if (U_FAILURE(status)) {
 119             /* If things are so broken that we can't even open a default spoof checker,  */
 120             /*   don't even try the rest of the tests.  They would all fail.             */
 121             return;
 122         }
 123         uspoof_close(sc);
 124     }
 125
 126
 127
 128     /*
 129      *  Test Open from source rules.
 130     */
 131     TEST_SETUP
 132     const char *dataSrcDir;
 133     char       *fileName;
 134     char       *confusables;
 135     int         confusablesLength;
 136     char       *confusablesWholeScript;
 137     int         confusablesWholeScriptLength;
 138     FILE       *f;
 139     UParseError pe;
 140     int32_t     errType;
 141     USpoofChecker *rsc;
 142
 143     dataSrcDir = ctest_dataSrcDir();
 144     fileName = malloc(strlen(dataSrcDir) + 100);
 145     strcpy(fileName, dataSrcDir);
 146     strcat(fileName, U_FILE_SEP_STRING "unidata" U_FILE_SEP_STRING "confusables.txt");
 147     f = fopen(fileName, "rb");
 148     TEST_ASSERT_NE(f, NULL);
 149     confusables = malloc(3000000);
 150     confusablesLength = fread(confusables, 1, 3000000, f);
 151     fclose(f);
 152
 153
 154     strcpy(fileName, dataSrcDir);
 155     strcat(fileName, U_FILE_SEP_STRING "unidata" U_FILE_SEP_STRING "confusablesWholeScript.txt");
 156     f = fopen(fileName, "rb");
 157     TEST_ASSERT_NE(f, NULL);
 158     confusablesWholeScript = malloc(1000000);
 159     confusablesWholeScriptLength = fread(confusablesWholeScript, 1, 1000000, f);
 160     fclose(f);
 161
 162     rsc = uspoof_openFromSource(confusables, confusablesLength,
 163                                               confusablesWholeScript, confusablesWholeScriptLength,
 164                                               &errType, &pe, &status);
 165     TEST_ASSERT_SUCCESS(status);
 166
 167     free(confusablesWholeScript);
 168     free(confusables);
 169     free(fileName);
 170     uspoof_close(rsc);
 171     /*  printf("ParseError Line is %d\n", pe.line);  */
 172     TEST_TEARDOWN;
 173
 174
 175     /*
 176      * openFromSerialized and serialize
 177     */
 178     TEST_SETUP
 179         int32_t        serializedSize = 0;
 180         int32_t        actualLength = 0;
 181         char           *buf;
 182         USpoofChecker  *sc2;
 183         int32_t         checkResults;
 184
 185
 186         serializedSize = uspoof_serialize(sc, NULL, 0, &status);
 187         TEST_ASSERT_EQ(status, U_BUFFER_OVERFLOW_ERROR);
 188         TEST_ASSERT(serializedSize > 0);
 189
 190         /* Serialize the default spoof checker */
 191         status = U_ZERO_ERROR;
 192         buf = (char *)malloc(serializedSize + 10);
 193         TEST_ASSERT(buf != NULL);
 194         buf[serializedSize] = 42;
 195         uspoof_serialize(sc, buf, serializedSize, &status);
 196         TEST_ASSERT_SUCCESS(status);
 197         TEST_ASSERT_EQ(42, buf[serializedSize]);
 198
 199         /* Create a new spoof checker from the freshly serialized data */
 200         sc2 = uspoof_openFromSerialized(buf, serializedSize+10, &actualLength, &status);
 201         TEST_ASSERT_SUCCESS(status);
 202         TEST_ASSERT_NE(NULL, sc2);
 203         TEST_ASSERT_EQ(serializedSize, actualLength);
 204
 205         /* Verify that the new spoof checker at least wiggles */
 206         checkResults = uspoof_check(sc2, goodLatin, -1, NULL, &status);
 207         TEST_ASSERT_SUCCESS(status);
 208         TEST_ASSERT_EQ(0, checkResults);
 209
 210         checkResults = uspoof_check(sc2, scMixed, -1, NULL, &status);
 211         TEST_ASSERT_SUCCESS(status);
 212         TEST_ASSERT_EQ(USPOOF_SINGLE_SCRIPT | USPOOF_MIXED_SCRIPT_CONFUSABLE, checkResults);
 213
 214         uspoof_close(sc2);
 215         free(buf);
 216     TEST_TEARDOWN;
 217
 218
 219
 220     /*
 221      * Set & Get Check Flags
 222     */
 223     TEST_SETUP
 224         int32_t t;
 225         uspoof_setChecks(sc, USPOOF_ALL_CHECKS, &status);
 226         TEST_ASSERT_SUCCESS(status);
 227         t = uspoof_getChecks(sc, &status);
 228         TEST_ASSERT_EQ(t, USPOOF_ALL_CHECKS);
 229
 230         uspoof_setChecks(sc, 0, &status);
 231         TEST_ASSERT_SUCCESS(status);
 232         t = uspoof_getChecks(sc, &status);
 233         TEST_ASSERT_EQ(0, t);
 234
 235         uspoof_setChecks(sc,
 236                         USPOOF_WHOLE_SCRIPT_CONFUSABLE | USPOOF_MIXED_SCRIPT_CONFUSABLE | USPOOF_ANY_CASE,
 237                         &status);
 238         TEST_ASSERT_SUCCESS(status);
 239         t = uspoof_getChecks(sc, &status);
 240         TEST_ASSERT_SUCCESS(status);
 241         TEST_ASSERT_EQ(USPOOF_WHOLE_SCRIPT_CONFUSABLE | USPOOF_MIXED_SCRIPT_CONFUSABLE | USPOOF_ANY_CASE, t);
 242     TEST_TEARDOWN;
 243
 244     /*
 245     * get & setAllowedChars
 246     */
 247     TEST_SETUP
 248         USet *us;
 249         const USet *uset;
 250
 251         uset = uspoof_getAllowedChars(sc, &status);
 252         TEST_ASSERT_SUCCESS(status);
 253         TEST_ASSERT(uset_isFrozen(uset));
 254         us = uset_open((UChar32)0x41, (UChar32)0x5A);   /*  [A-Z]  */
 255         uspoof_setAllowedChars(sc, us, &status);
 256         TEST_ASSERT_SUCCESS(status);
 257         TEST_ASSERT_NE(us, uspoof_getAllowedChars(sc, &status));
 258         TEST_ASSERT(uset_equals(us, uspoof_getAllowedChars(sc, &status)));
 259         TEST_ASSERT_SUCCESS(status);
 260         uset_close(us);
 261     TEST_TEARDOWN;
 262
 263     /*
 264     *  clone()
 265     */
 266
 267     TEST_SETUP
 268         USpoofChecker *clone1 = NULL;
 269         USpoofChecker *clone2 = NULL;
 270         int32_t        checkResults = 0;
 271
 272         clone1 = uspoof_clone(sc, &status);
 273         TEST_ASSERT_SUCCESS(status);
 274         TEST_ASSERT_NE(clone1, sc);
 275
 276         clone2 = uspoof_clone(clone1, &status);
 277         TEST_ASSERT_SUCCESS(status);
 278         TEST_ASSERT_NE(clone2, clone1);
 279
 280         uspoof_close(clone1);
 281
 282         /* Verify that the cloned spoof checker is alive */
 283         checkResults = uspoof_check(clone2, goodLatin, -1, NULL, &status);
 284         TEST_ASSERT_SUCCESS(status);
 285         TEST_ASSERT_EQ(0, checkResults);
 286
 287         checkResults = uspoof_check(clone2, scMixed, -1, NULL, &status);
 288         TEST_ASSERT_SUCCESS(status);
 289         TEST_ASSERT_EQ(USPOOF_SINGLE_SCRIPT | USPOOF_MIXED_SCRIPT_CONFUSABLE, checkResults);
 290         uspoof_close(clone2);
 291     TEST_TEARDOWN;
 292
 293      /*
 294      *  basic uspoof_check()
 295      */
 296      TEST_SETUP
 297          int32_t result;
 298          result = uspoof_check(sc, goodLatin, -1, NULL, &status);
 299          TEST_ASSERT_SUCCESS(status);
 300          TEST_ASSERT_EQ(0, result);
 301
 302          result = uspoof_check(sc, han_Hiragana, -1, NULL, &status);
 303          TEST_ASSERT_SUCCESS(status);
 304          TEST_ASSERT_EQ(0, result);
 305
 306          result = uspoof_check(sc, scMixed, -1, NULL, &status);
 307          TEST_ASSERT_SUCCESS(status);
 308          TEST_ASSERT_EQ(USPOOF_SINGLE_SCRIPT | USPOOF_MIXED_SCRIPT_CONFUSABLE, result);
 309      TEST_TEARDOWN
 310
 311
 312     /*
 313      *  get & set Checks
 314     */
 315     TEST_SETUP
 316         int32_t   checks;
 317         int32_t   checks2;
 318         int32_t   checkResults;
 319
 320         checks = uspoof_getChecks(sc, &status);
 321         TEST_ASSERT_SUCCESS(status);
 322         TEST_ASSERT_EQ(USPOOF_ALL_CHECKS, checks);
 323
 324         checks &= ~(USPOOF_SINGLE_SCRIPT | USPOOF_MIXED_SCRIPT_CONFUSABLE);
 325         uspoof_setChecks(sc, checks, &status);
 326         TEST_ASSERT_SUCCESS(status);
 327         checks2 = uspoof_getChecks(sc, &status);
 328         TEST_ASSERT_EQ(checks, checks2);
 329
 330         /* The checks that were disabled just above are the same ones that the "scMixed" test fails.
 331             So with those tests gone checking that Identifier should now succeed */
 332         checkResults = uspoof_check(sc, scMixed, -1, NULL, &status);
 333         TEST_ASSERT_SUCCESS(status);
 334         TEST_ASSERT_EQ(0, checkResults);
 335     TEST_TEARDOWN;
 336
 337     /*
 338      *  AllowedLoacles
 339      */
 340
 341     TEST_SETUP
 342         const char  *allowedLocales;
 343         int32_t  checkResults;
 344
 345         /* Default allowed locales list should be empty */
 346         allowedLocales = uspoof_getAllowedLocales(sc, &status);
 347         TEST_ASSERT_SUCCESS(status);
 348         TEST_ASSERT(strcmp("", allowedLocales) == 0)
 349
 350         /* Allow en and ru, which should enable Latin and Cyrillic only to pass */
 351         uspoof_setAllowedLocales(sc, "en, ru_RU", &status);
 352         TEST_ASSERT_SUCCESS(status);
 353         allowedLocales = uspoof_getAllowedLocales(sc, &status);
 354         TEST_ASSERT_SUCCESS(status);
 355         TEST_ASSERT(strstr(allowedLocales, "en") != NULL);
 356         TEST_ASSERT(strstr(allowedLocales, "ru") != NULL);
 357
 358         /* Limit checks to USPOOF_CHAR_LIMIT.  Some of the test data has whole script confusables also,
 359          * which we don't want to see in this test. */
 360         uspoof_setChecks(sc, USPOOF_CHAR_LIMIT, &status);
 361         TEST_ASSERT_SUCCESS(status);
 362
 363         checkResults = uspoof_check(sc, goodLatin, -1, NULL, &status);
 364         TEST_ASSERT_SUCCESS(status);
 365         TEST_ASSERT_EQ(0, checkResults);
 366
 367         checkResults = uspoof_check(sc, goodGreek, -1, NULL, &status);
 368         TEST_ASSERT_SUCCESS(status);
 369         TEST_ASSERT_EQ(USPOOF_CHAR_LIMIT, checkResults);
 370
 371         checkResults = uspoof_check(sc, goodCyrl, -1, NULL, &status);
 372         TEST_ASSERT_SUCCESS(status);
 373         TEST_ASSERT_EQ(0, checkResults);
 374
 375         /* Reset with an empty locale list, which should allow all characters to pass */
 376         uspoof_setAllowedLocales(sc, " ", &status);
 377         TEST_ASSERT_SUCCESS(status);
 378
 379         checkResults = uspoof_check(sc, goodGreek, -1, NULL, &status);
 380         TEST_ASSERT_SUCCESS(status);
 381         TEST_ASSERT_EQ(0, checkResults);
 382     TEST_TEARDOWN;
 383
 384     /*
 385      * AllowedChars   set/get the USet of allowed characters.
 386      */
 387     TEST_SETUP
 388         const USet  *set;
 389         USet        *tmpSet;
 390         int32_t      checkResults;
 391
 392         /* By default, we should see no restriction; the USet should allow all characters. */
 393         set = uspoof_getAllowedChars(sc, &status);
 394         TEST_ASSERT_SUCCESS(status);
 395         tmpSet = uset_open(0, 0x10ffff);
 396         TEST_ASSERT(uset_equals(tmpSet, set));
 397
 398         /* Setting the allowed chars should enable the check. */
 399         uspoof_setChecks(sc, USPOOF_ALL_CHECKS & ~USPOOF_CHAR_LIMIT, &status);
 400         TEST_ASSERT_SUCCESS(status);
 401
 402         /* Remove a character that is in our good Latin test identifier from the allowed chars set. */
 403         uset_remove(tmpSet, goodLatin[1]);
 404         uspoof_setAllowedChars(sc, tmpSet, &status);
 405         TEST_ASSERT_SUCCESS(status);
 406         uset_close(tmpSet);
 407
 408         /* Latin Identifier should now fail; other non-latin test cases should still be OK */
 409         checkResults = uspoof_check(sc, goodLatin, -1, NULL, &status);
 410         TEST_ASSERT_SUCCESS(status);
 411         TEST_ASSERT_EQ(USPOOF_CHAR_LIMIT, checkResults);
 412
 413         checkResults = uspoof_check(sc, goodGreek, -1, NULL, &status);
 414         TEST_ASSERT_SUCCESS(status);
 415         TEST_ASSERT_EQ(USPOOF_WHOLE_SCRIPT_CONFUSABLE, checkResults);
 416     TEST_TEARDOWN;
 417
 418     /*
 419      * check UTF-8
 420      */
 421     TEST_SETUP
 422         char    utf8buf[200];
 423         int32_t checkResults;
 424         int32_t position;
 425
 426         u_strToUTF8(utf8buf, sizeof(utf8buf), NULL, goodLatin, -1, &status);
 427         TEST_ASSERT_SUCCESS(status);
 428         position = 666;
 429         checkResults = uspoof_checkUTF8(sc, utf8buf, -1, &position, &status);
 430         TEST_ASSERT_SUCCESS(status);
 431         TEST_ASSERT_EQ(0, checkResults);
 432         TEST_ASSERT_EQ(666, position);
 433
 434         u_strToUTF8(utf8buf, sizeof(utf8buf), NULL, goodCyrl, -1, &status);
 435         TEST_ASSERT_SUCCESS(status);
 436         checkResults = uspoof_checkUTF8(sc, utf8buf, -1, &position, &status);
 437         TEST_ASSERT_SUCCESS(status);
 438         TEST_ASSERT_EQ(0, checkResults);
 439
 440         u_strToUTF8(utf8buf, sizeof(utf8buf), NULL, scMixed, -1, &status);
 441         TEST_ASSERT_SUCCESS(status);
 442         position = 666;
 443         checkResults = uspoof_checkUTF8(sc, utf8buf, -1, &position, &status);
 444         TEST_ASSERT_SUCCESS(status);
 445         TEST_ASSERT_EQ(USPOOF_MIXED_SCRIPT_CONFUSABLE | USPOOF_SINGLE_SCRIPT , checkResults);
 446         TEST_ASSERT_EQ(2, position);
 447
 448     TEST_TEARDOWN;
 449
 450     /*
 451      * uspoof_areConfusable()
 452      */
 453     TEST_SETUP
 454         int32_t  checkResults;
 455
 456         checkResults = uspoof_areConfusable(sc, scLatin, -1, scMixed, -1, &status);
 457         TEST_ASSERT_SUCCESS(status);
 458         TEST_ASSERT_EQ(USPOOF_MIXED_SCRIPT_CONFUSABLE, checkResults);
 459
 460         checkResults = uspoof_areConfusable(sc, goodGreek, -1, scLatin, -1, &status);
 461         TEST_ASSERT_SUCCESS(status);
 462         TEST_ASSERT_EQ(0, checkResults);
 463
 464         checkResults = uspoof_areConfusable(sc, lll_Latin_a, -1, lll_Latin_b, -1, &status);
 465         TEST_ASSERT_SUCCESS(status);
 466         TEST_ASSERT_EQ(USPOOF_SINGLE_SCRIPT_CONFUSABLE, checkResults);
 467
 468     TEST_TEARDOWN;
 469
 470     /*
 471      * areConfusableUTF8
 472      */
 473     TEST_SETUP
 474         int32_t checkResults;
 475         char s1[200];
 476         char s2[200];
 477
 478
 479         u_strToUTF8(s1, sizeof(s1), NULL, scLatin, -1, &status);
 480         u_strToUTF8(s2, sizeof(s2), NULL, scMixed, -1, &status);
 481         TEST_ASSERT_SUCCESS(status);
 482         checkResults = uspoof_areConfusableUTF8(sc, s1, -1, s2, -1, &status);
 483         TEST_ASSERT_SUCCESS(status);
 484         TEST_ASSERT_EQ(USPOOF_MIXED_SCRIPT_CONFUSABLE, checkResults);
 485
 486         u_strToUTF8(s1, sizeof(s1), NULL, goodGreek, -1, &status);
 487         u_strToUTF8(s2, sizeof(s2), NULL, scLatin, -1, &status);
 488         TEST_ASSERT_SUCCESS(status);
 489         checkResults = uspoof_areConfusableUTF8(sc, s1, -1, s2, -1, &status);
 490         TEST_ASSERT_SUCCESS(status);
 491         TEST_ASSERT_EQ(0, checkResults);
 492
 493         u_strToUTF8(s1, sizeof(s1), NULL, lll_Latin_a, -1, &status);
 494         u_strToUTF8(s2, sizeof(s2), NULL, lll_Latin_b, -1, &status);
 495         TEST_ASSERT_SUCCESS(status);
 496         checkResults = uspoof_areConfusableUTF8(sc, s1, -1, s2, -1, &status);
 497         TEST_ASSERT_SUCCESS(status);
 498         TEST_ASSERT_EQ(USPOOF_SINGLE_SCRIPT_CONFUSABLE, checkResults);
 499
 500     TEST_TEARDOWN;
 501
 502
 503   /*
 504    * getSkeleton
 505    */
 506
 507     TEST_SETUP
 508         UChar dest[100];
 509         int32_t   skelLength;
 510
 511         skelLength = uspoof_getSkeleton(sc, USPOOF_ANY_CASE, lll_Latin_a, -1, dest, sizeof(dest)/sizeof(UChar), &status);
 512         TEST_ASSERT_SUCCESS(status);
 513         TEST_ASSERT_EQ(0, u_strcmp(lll_Skel, dest));
 514         TEST_ASSERT_EQ(u_strlen(lll_Skel), skelLength);
 515
 516         skelLength = uspoof_getSkeletonUTF8(sc, USPOOF_ANY_CASE, goodLatinUTF8, -1, (char*)dest,
 517                                             sizeof(dest)/sizeof(UChar), &status);
 518         TEST_ASSERT_SUCCESS(status);
 519
 520         skelLength = uspoof_getSkeleton(sc, USPOOF_ANY_CASE, lll_Latin_a, -1, NULL, 0, &status);
 521         TEST_ASSERT_EQ(U_BUFFER_OVERFLOW_ERROR, status);
 522         TEST_ASSERT_EQ(3, skelLength);
 523         status = U_ZERO_ERROR;
 524
 525     TEST_TEARDOWN;
 526 }
 527
 528 #endif  /* UCONFIG_NO_REGULAR_EXPRESSIONS */