icuSources/test/intltest/itspoof.cpp

   1 // © 2016 and later: Unicode, Inc. and others.
   2 // License & terms of use: http://www.unicode.org/copyright.html
   3 /*
   4 **********************************************************************
   5 * Copyright (C) 2011-2015, International Business Machines Corporation
   6 * and others.  All Rights Reserved.
   7 **********************************************************************
   8 */
   9 /**
  10  * IntlTestSpoof tests for USpoofDetector
  11  */
  12
  13 #include "unicode/utypes.h"
  14
  15 #if !UCONFIG_NO_REGULAR_EXPRESSIONS && !UCONFIG_NO_NORMALIZATION && !UCONFIG_NO_FILE_IO
  16
  17 #include "itspoof.h"
  18
  19 #include "unicode/normlzr.h"
  20 #include "unicode/regex.h"
  21 #include "unicode/unistr.h"
  22 #include "unicode/uscript.h"
  23 #include "unicode/uspoof.h"
  24
  25 #include "cstring.h"
  26 #include "scriptset.h"
  27 #include "uhash.h"
  28
  29 #include <stdlib.h>
  30 #include <stdio.h>
  31
  32 #define TEST_ASSERT_SUCCESS(status) {if (U_FAILURE(status)) { \
  33     errcheckln(status, "Failure at file %s, line %d, error = %s", __FILE__, __LINE__, u_errorName(status));}}
  34
  35 #define TEST_ASSERT(expr) {if ((expr)==FALSE) { \
  36     errln("Test Failure at file %s, line %d: \"%s\" is false.", __FILE__, __LINE__, #expr);};}
  37
  38 #define TEST_ASSERT_MSG(expr, msg) {if ((expr)==FALSE) { \
  39     dataerrln("Test Failure at file %s, line %d, %s: \"%s\" is false.", __FILE__, __LINE__, msg, #expr);};}
  40
  41 #define TEST_ASSERT_EQ(a, b) { if ((a) != (b)) { \
  42     errln("Test Failure at file %s, line %d: \"%s\" (%d) != \"%s\" (%d)", \
  43              __FILE__, __LINE__, #a, (a), #b, (b)); }}
  44
  45 #define TEST_ASSERT_NE(a, b) { if ((a) == (b)) { \
  46     errln("Test Failure at file %s, line %d: \"%s\" (%d) == \"%s\" (%d)", \
  47              __FILE__, __LINE__, #a, (a), #b, (b)); }}
  48
  49 /*
  50  *   TEST_SETUP and TEST_TEARDOWN
  51  *         macros to handle the boilerplate around setting up test case.
  52  *         Put arbitrary test code between SETUP and TEARDOWN.
  53  *         "sc" is the ready-to-go  SpoofChecker for use in the tests.
  54  */
  55 #define TEST_SETUP {  \
  56     UErrorCode status = U_ZERO_ERROR; \
  57     USpoofChecker *sc;     \
  58     sc = uspoof_open(&status);  \
  59     TEST_ASSERT_SUCCESS(status);   \
  60     USpoofCheckResult *checkResult; \
  61     checkResult = uspoof_openCheckResult(&status); \
  62     TEST_ASSERT_SUCCESS(status);   \
  63     if (U_SUCCESS(status)){
  64
  65 #define TEST_TEARDOWN  \
  66     }  \
  67     TEST_ASSERT_SUCCESS(status);  \
  68     uspoof_closeCheckResult(checkResult); \
  69     uspoof_close(sc);  \
  70 }
  71
  72
  73
  74
  75 void IntlTestSpoof::runIndexedTest( int32_t index, UBool exec, const char* &name, char* /*par*/ )
  76 {
  77     if (exec) {
  78         logln("TestSuite spoof: ");
  79     }
  80     TESTCASE_AUTO_BEGIN;
  81     TESTCASE_AUTO(testSpoofAPI);
  82     TESTCASE_AUTO(testSkeleton);
  83     TESTCASE_AUTO(testAreConfusable);
  84     TESTCASE_AUTO(testInvisible);
  85     TESTCASE_AUTO(testConfData);
  86     TESTCASE_AUTO(testBug8654);
  87     TESTCASE_AUTO(testScriptSet);
  88     TESTCASE_AUTO(testRestrictionLevel);
  89     TESTCASE_AUTO(testMixedNumbers);
  90     TESTCASE_AUTO(testBug12153);
  91     TESTCASE_AUTO(testBug12825);
  92     TESTCASE_AUTO(testBug12815);
  93     TESTCASE_AUTO(testBug13314_MixedNumbers);
  94     TESTCASE_AUTO(testBug13328_MixedCombiningMarks);
  95     TESTCASE_AUTO(testCombiningDot);
  96     TESTCASE_AUTO_END;
  97 }
  98
  99 void IntlTestSpoof::testSpoofAPI() {
 100
 101     TEST_SETUP
 102         UnicodeString s("xyz");  // Many latin ranges are whole-script confusable with other scripts.
 103                                  // If this test starts failing, consult confusablesWholeScript.txt
 104         int32_t position = 666;
 105         int32_t checkResults = uspoof_checkUnicodeString(sc, s, &position, &status);
 106         TEST_ASSERT_SUCCESS(status);
 107         TEST_ASSERT_EQ(0, checkResults);
 108         TEST_ASSERT_EQ(0, position);
 109     TEST_TEARDOWN;
 110
 111     TEST_SETUP
 112         UnicodeString s1("cxs");
 113         UnicodeString s2 = UnicodeString("\\u0441\\u0445\\u0455").unescape();  // Cyrillic "cxs"
 114         int32_t checkResults = uspoof_areConfusableUnicodeString(sc, s1, s2, &status);
 115         TEST_ASSERT_SUCCESS(status);
 116         TEST_ASSERT_EQ(USPOOF_MIXED_SCRIPT_CONFUSABLE | USPOOF_WHOLE_SCRIPT_CONFUSABLE, checkResults);
 117
 118     TEST_TEARDOWN;
 119
 120     TEST_SETUP
 121         UnicodeString s("I1l0O");
 122         UnicodeString dest;
 123         UnicodeString &retStr = uspoof_getSkeletonUnicodeString(sc, USPOOF_ANY_CASE, s, dest, &status);
 124         TEST_ASSERT_SUCCESS(status);
 125         TEST_ASSERT(UnicodeString("lllOO") == dest);
 126         TEST_ASSERT(&dest == &retStr);
 127     TEST_TEARDOWN;
 128 }
 129
 130
 131 #define CHECK_SKELETON(type, input, expected) { \
 132     checkSkeleton(sc, type, input, expected, __LINE__); \
 133     }
 134
 135
 136 // testSkeleton.   Spot check a number of confusable skeleton substitutions from the
 137 //                 Unicode data file confusables.txt
 138 //                 Test cases chosen for substitutions of various lengths, and
 139 //                 membership in different mapping tables.
 140 //          Note: for ICU 55, all tables collapsed to the MA table data.
 141 //          TODO: for ICU 56 with Unicode 8, revisit this test.
 142 //
 143 void IntlTestSpoof::testSkeleton() {
 144     const uint32_t ML = 0;
 145     const uint32_t SL = USPOOF_SINGLE_SCRIPT_CONFUSABLE;
 146     const uint32_t MA = USPOOF_ANY_CASE;
 147     const uint32_t SA = USPOOF_SINGLE_SCRIPT_CONFUSABLE | USPOOF_ANY_CASE;
 148
 149     TEST_SETUP
 150         CHECK_SKELETON(SL, "nochange", "nochange");
 151         CHECK_SKELETON(SA, "nochange", "nochange");
 152         CHECK_SKELETON(ML, "nochange", "nochange");
 153         CHECK_SKELETON(MA, "nochange", "nochange");
 154         CHECK_SKELETON(MA, "love", "love");
 155         CHECK_SKELETON(MA, "1ove", "love");   // Digit 1 to letter l
 156         CHECK_SKELETON(ML, "OOPS", "OOPS");
 157         CHECK_SKELETON(ML, "00PS", "OOPS");
 158         CHECK_SKELETON(MA, "OOPS", "OOPS");
 159         CHECK_SKELETON(MA, "00PS", "OOPS");   // Digit 0 to letter O in any case mode only
 160         CHECK_SKELETON(SL, "\\u059c", "\\u0301");
 161         CHECK_SKELETON(SL, "\\u2A74", "\\u003A\\u003A\\u003D");
 162         CHECK_SKELETON(SL, "\\u247E", "\\u0028\\u006C\\u006C\\u0029");  // "(ll)"
 163         CHECK_SKELETON(SL, "\\uFDFB", "\\u062C\\u0644\\u0020\\u062C\\u0644\\u006c\\u0644\\u006f");
 164
 165         // This mapping exists in the ML and MA tables, does not exist in SL, SA
 166         // 0C83 ;       0983 ;  ML
 167         // 0C83 ;       0983 ;  MA
 168         //
 169
 170         CHECK_SKELETON(SL, "\\u0C83", "\\u0983");
 171         CHECK_SKELETON(SA, "\\u0C83", "\\u0983");
 172         CHECK_SKELETON(ML, "\\u0C83", "\\u0983");
 173         CHECK_SKELETON(MA, "\\u0C83", "\\u0983");
 174
 175         // 0391 mappings exist only in MA and SA tables.
 176         CHECK_SKELETON(MA, "\\u0391", "A");
 177         CHECK_SKELETON(SA, "\\u0391", "A");
 178         CHECK_SKELETON(ML, "\\u0391", "A");
 179         CHECK_SKELETON(SL, "\\u0391", "A");
 180
 181         // 13CF Mappings in all four tables, different in MA.
 182         CHECK_SKELETON(ML, "\\u13CF", "b");
 183         CHECK_SKELETON(MA, "\\u13CF", "b");
 184         CHECK_SKELETON(SL, "\\u13CF", "b");
 185         CHECK_SKELETON(SA, "\\u13CF", "b");
 186
 187         // 0022 ;  0027 0027 ;
 188         // all tables.
 189         CHECK_SKELETON(SL, "\\u0022", "\\u0027\\u0027");
 190         CHECK_SKELETON(SA, "\\u0022", "\\u0027\\u0027");
 191         CHECK_SKELETON(ML, "\\u0022", "\\u0027\\u0027");
 192         CHECK_SKELETON(MA, "\\u0022", "\\u0027\\u0027");
 193
 194         // 017F mappings exist only in MA and SA tables.
 195         CHECK_SKELETON(MA, "\\u017F", "f");
 196         CHECK_SKELETON(SA, "\\u017F", "f");
 197         CHECK_SKELETON(ML, "\\u017F", "f");
 198         CHECK_SKELETON(SL, "\\u017F", "f");
 199
 200     TEST_TEARDOWN;
 201 }
 202
 203
 204 //
 205 //  Run a single confusable skeleton transformation test case.
 206 //
 207 void IntlTestSpoof::checkSkeleton(const USpoofChecker *sc, uint32_t type,
 208                                   const char *input, const char *expected, int32_t lineNum) {
 209     UnicodeString uInput = UnicodeString(input).unescape();
 210     UnicodeString uExpected = UnicodeString(expected).unescape();
 211
 212     UErrorCode status = U_ZERO_ERROR;
 213     UnicodeString actual;
 214     uspoof_getSkeletonUnicodeString(sc, type, uInput, actual, &status);
 215     if (U_FAILURE(status)) {
 216         errln("File %s, Line %d, Test case from line %d, status is %s", __FILE__, __LINE__, lineNum,
 217               u_errorName(status));
 218         return;
 219     }
 220     if (uExpected != actual) {
 221         errln("File %s, Line %d, Test case from line %d, Actual and Expected skeletons differ.",
 222                __FILE__, __LINE__, lineNum);
 223         errln(UnicodeString(" Actual   Skeleton: \"") + actual + UnicodeString("\"\n") +
 224               UnicodeString(" Expected Skeleton: \"") + uExpected + UnicodeString("\""));
 225     }
 226 }
 227
 228 void IntlTestSpoof::testAreConfusable() {
 229     TEST_SETUP
 230         UnicodeString s1("A long string that will overflow stack buffers.  A long string that will overflow stack buffers. "
 231                          "A long string that will overflow stack buffers.  A long string that will overflow stack buffers. ");
 232         UnicodeString s2("A long string that wi11 overflow stack buffers.  A long string that will overflow stack buffers. "
 233                          "A long string that wi11 overflow stack buffers.  A long string that will overflow stack buffers. ");
 234         int32_t result = uspoof_areConfusableUnicodeString(sc, s1, s2, &status);
 235         TEST_ASSERT_SUCCESS(status);
 236         TEST_ASSERT_EQ(USPOOF_SINGLE_SCRIPT_CONFUSABLE, result);
 237
 238     TEST_TEARDOWN;
 239 }
 240
 241 void IntlTestSpoof::testInvisible() {
 242     TEST_SETUP
 243         UnicodeString  s = UnicodeString("abcd\\u0301ef").unescape();
 244         int32_t position = -42;
 245         TEST_ASSERT_EQ(0, uspoof_checkUnicodeString(sc, s, &position, &status));
 246         TEST_ASSERT_SUCCESS(status);
 247         TEST_ASSERT(0 == position);
 248
 249         UnicodeString  s2 = UnicodeString("abcd\\u0301\\u0302\\u0301ef").unescape();
 250         TEST_ASSERT_EQ(USPOOF_INVISIBLE, uspoof_checkUnicodeString(sc, s2, &position, &status));
 251         TEST_ASSERT_SUCCESS(status);
 252         TEST_ASSERT_EQ(0, position);
 253
 254         // Two acute accents, one from the composed a with acute accent, \u00e1,
 255         // and one separate.
 256         position = -42;
 257         UnicodeString  s3 = UnicodeString("abcd\\u00e1\\u0301xyz").unescape();
 258         TEST_ASSERT_EQ(USPOOF_INVISIBLE, uspoof_checkUnicodeString(sc, s3, &position, &status));
 259         TEST_ASSERT_SUCCESS(status);
 260         TEST_ASSERT_EQ(0, position);
 261     TEST_TEARDOWN;
 262 }
 263
 264 void IntlTestSpoof::testBug8654() {
 265     TEST_SETUP
 266         UnicodeString s = UnicodeString("B\\u00c1\\u0301").unescape();
 267         int32_t position = -42;
 268         TEST_ASSERT_EQ(USPOOF_INVISIBLE, uspoof_checkUnicodeString(sc, s, &position, &status) & USPOOF_INVISIBLE );
 269         TEST_ASSERT_SUCCESS(status);
 270         TEST_ASSERT_EQ(0, position);
 271     TEST_TEARDOWN;
 272 }
 273
 274 static UnicodeString parseHex(const UnicodeString &in) {
 275     // Convert a series of hex numbers in a Unicode String to a string with the
 276     // corresponding characters.
 277     // The conversion is _really_ annoying.  There must be some function to just do it.
 278     UnicodeString result;
 279     UChar32 cc = 0;
 280     for (int32_t i=0; i<in.length(); i++) {
 281         UChar c = in.charAt(i);
 282         if (c == 0x20) {   // Space
 283             if (cc > 0) {
 284                result.append(cc);
 285                cc = 0;
 286             }
 287         } else if (c>=0x30 && c<=0x39) {
 288             cc = (cc<<4) + (c - 0x30);
 289         } else if ((c>=0x41 && c<=0x46) || (c>=0x61 && c<=0x66)) {
 290             cc = (cc<<4) + (c & 0x0f)+9;
 291         }
 292         // else do something with bad input.
 293     }
 294     if (cc > 0) {
 295         result.append(cc);
 296     }
 297     return result;
 298 }
 299
 300
 301 //
 302 // Append the hex form of a UChar32 to a UnicodeString.
 303 // Used in formatting error messages.
 304 // Match the formatting of numbers in confusables.txt
 305 // Minimum of 4 digits, no leading zeroes for positions 5 and up.
 306 //
 307 static void appendHexUChar(UnicodeString &dest, UChar32 c) {
 308     UBool   doZeroes = FALSE;
 309     for (int bitNum=28; bitNum>=0; bitNum-=4) {
 310         if (bitNum <= 12) {
 311             doZeroes = TRUE;
 312         }
 313         int hexDigit = (c>>bitNum) & 0x0f;
 314         if (hexDigit != 0 || doZeroes) {
 315             doZeroes = TRUE;
 316             dest.append((UChar)(hexDigit<=9? hexDigit + 0x30: hexDigit -10 + 0x41));
 317         }
 318     }
 319     dest.append((UChar)0x20);
 320 }
 321
 322 U_DEFINE_LOCAL_OPEN_POINTER(LocalStdioFilePointer, FILE, fclose);
 323
 324 //  testConfData - Check each data item from the Unicode confusables.txt file,
 325 //                 verify that it transforms correctly in a skeleton.
 326 //
 327 void IntlTestSpoof::testConfData() {
 328     char buffer[2000];
 329     if (getUnidataPath(buffer) == NULL) {
 330         errln("Skipping test spoof/testConfData. Unable to find path to source/data/unidata/.");
 331         return;
 332     }
 333     uprv_strcat(buffer, "confusables.txt");
 334
 335     LocalStdioFilePointer f(fopen(buffer, "rb"));
 336     if (f.isNull()) {
 337         errln("Skipping test spoof/testConfData.  File confusables.txt not accessible.");
 338         return;
 339     }
 340     fseek(f.getAlias(), 0, SEEK_END);
 341     int32_t  fileSize = ftell(f.getAlias());
 342     LocalArray<char> fileBuf(new char[fileSize]);
 343     fseek(f.getAlias(), 0, SEEK_SET);
 344     int32_t amt_read = static_cast<int32_t>(fread(fileBuf.getAlias(), 1, fileSize, f.getAlias()));
 345     TEST_ASSERT_EQ(amt_read, fileSize);
 346     TEST_ASSERT(fileSize>0);
 347     if (amt_read != fileSize || fileSize <=0) {
 348         return;
 349     }
 350     UnicodeString confusablesTxt = UnicodeString::fromUTF8(StringPiece(fileBuf.getAlias(), fileSize));
 351
 352     UErrorCode status = U_ZERO_ERROR;
 353     LocalUSpoofCheckerPointer sc(uspoof_open(&status));
 354     TEST_ASSERT_SUCCESS(status);
 355
 356     // Parse lines from the confusables.txt file.  Example Line:
 357     // FF44 ;   0064 ;  SL      # ( d -> d ) FULLWIDTH ....
 358     // Three fields.  The hex fields can contain more than one character,
 359     //                and each character may be more than 4 digits (for supplemntals)
 360     // This regular expression matches lines and splits the fields into capture groups.
 361     RegexMatcher parseLine("(?m)^([0-9A-F]{4}[^#;]*?);([^#;]*?);([^#]*)", confusablesTxt, 0, status);
 362     TEST_ASSERT_SUCCESS(status);
 363     while (parseLine.find()) {
 364         UnicodeString from = parseHex(parseLine.group(1, status));
 365         if (!Normalizer::isNormalized(from, UNORM_NFD, status)) {
 366             // The source character was not NFD.
 367             // Skip this case; the first step in obtaining a skeleton is to NFD the input,
 368             //  so the mapping in this line of confusables.txt will never be applied.
 369             continue;
 370         }
 371
 372         UnicodeString rawExpected = parseHex(parseLine.group(2, status));
 373         UnicodeString expected;
 374         Normalizer::decompose(rawExpected, FALSE /*NFD*/, 0, expected, status);
 375         TEST_ASSERT_SUCCESS(status);
 376
 377         int32_t skeletonType = 0;
 378         UnicodeString tableType = parseLine.group(3, status);
 379         TEST_ASSERT_SUCCESS(status);
 380         if (tableType.indexOf("SL") >= 0) {
 381             skeletonType = USPOOF_SINGLE_SCRIPT_CONFUSABLE;
 382         } else if (tableType.indexOf("SA") >= 0) {
 383             skeletonType = USPOOF_SINGLE_SCRIPT_CONFUSABLE | USPOOF_ANY_CASE;
 384         } else if (tableType.indexOf("ML") >= 0) {
 385             skeletonType = 0;
 386         } else if (tableType.indexOf("MA") >= 0) {
 387             skeletonType = USPOOF_ANY_CASE;
 388         }
 389
 390         UnicodeString actual;
 391         uspoof_getSkeletonUnicodeString(sc.getAlias(), skeletonType, from, actual, &status);
 392         TEST_ASSERT_SUCCESS(status);
 393         TEST_ASSERT(actual == expected);
 394         if (actual != expected) {
 395             errln(parseLine.group(0, status));
 396             UnicodeString line = "Actual: ";
 397             int i = 0;
 398             while (i < actual.length()) {
 399                 appendHexUChar(line, actual.char32At(i));
 400                 i = actual.moveIndex32(i, 1);
 401             }
 402             errln(line);
 403         }
 404         if (U_FAILURE(status)) {
 405             break;
 406         }
 407     }
 408 }
 409
 410
 411 void IntlTestSpoof::testScriptSet() {
 412     ScriptSet s1;
 413     ScriptSet s2;
 414     UErrorCode status = U_ZERO_ERROR;
 415
 416     TEST_ASSERT(s1 == s2);
 417     s1.set(USCRIPT_ARABIC,status);
 418     TEST_ASSERT_SUCCESS(status);
 419     TEST_ASSERT(!(s1 == s2));
 420     TEST_ASSERT(s1.test(USCRIPT_ARABIC, status));
 421     TEST_ASSERT(s1.test(USCRIPT_GREEK, status) == FALSE);
 422
 423     status = U_ZERO_ERROR;
 424     s1.reset(USCRIPT_ARABIC, status);
 425     TEST_ASSERT(s1 == s2);
 426
 427     status = U_ZERO_ERROR;
 428     s1.setAll();
 429     TEST_ASSERT(s1.test(USCRIPT_COMMON, status));
 430     TEST_ASSERT(s1.test(USCRIPT_ETHIOPIC, status));
 431     TEST_ASSERT(s1.test(USCRIPT_CODE_LIMIT, status));
 432     s1.resetAll();
 433     TEST_ASSERT(!s1.test(USCRIPT_COMMON, status));
 434     TEST_ASSERT(!s1.test(USCRIPT_ETHIOPIC, status));
 435     TEST_ASSERT(!s1.test(USCRIPT_CODE_LIMIT, status));
 436
 437     status = U_ZERO_ERROR;
 438     s1.set(USCRIPT_TAKRI, status);
 439     s1.set(USCRIPT_BLISSYMBOLS, status);
 440     s2.setAll();
 441     TEST_ASSERT(s2.contains(s1));
 442     TEST_ASSERT(!s1.contains(s2));
 443     TEST_ASSERT(s2.intersects(s1));
 444     TEST_ASSERT(s1.intersects(s2));
 445     s2.reset(USCRIPT_TAKRI, status);
 446     TEST_ASSERT(!s2.contains(s1));
 447     TEST_ASSERT(!s1.contains(s2));
 448     TEST_ASSERT(s1.intersects(s2));
 449     TEST_ASSERT(s2.intersects(s1));
 450     TEST_ASSERT_SUCCESS(status);
 451
 452     status = U_ZERO_ERROR;
 453     s1.resetAll();
 454     s1.set(USCRIPT_NKO, status);
 455     s1.set(USCRIPT_COMMON, status);
 456     s2 = s1;
 457     TEST_ASSERT(s2 == s1);
 458     TEST_ASSERT_EQ(2, s2.countMembers());
 459     s2.intersect(s1);
 460     TEST_ASSERT(s2 == s1);
 461     s2.setAll();
 462     TEST_ASSERT(!(s2 == s1));
 463     TEST_ASSERT(s2.countMembers() >= USCRIPT_CODE_LIMIT);
 464     s2.intersect(s1);
 465     TEST_ASSERT(s2 == s1);
 466
 467     s2.setAll();
 468     s2.reset(USCRIPT_COMMON, status);
 469     s2.intersect(s1);
 470     TEST_ASSERT(s2.countMembers() == 1);
 471
 472     s1.resetAll();
 473     TEST_ASSERT(s1.isEmpty());
 474     s1.set(USCRIPT_LATIN, status);
 475     TEST_ASSERT(!s1.isEmpty());
 476     s1.setAll();
 477     TEST_ASSERT(!s1.isEmpty());
 478     TEST_ASSERT_SUCCESS(status);
 479
 480     s1.resetAll();
 481     s1.set(USCRIPT_AFAKA, status);
 482     s1.set(USCRIPT_VAI, status);
 483     s1.set(USCRIPT_INHERITED, status);
 484     int32_t n = -1;
 485     for (int32_t i=0; i<4; i++) {
 486         n = s1.nextSetBit(n+1);
 487         switch (i) {
 488           case 0: TEST_ASSERT_EQ(USCRIPT_INHERITED, n); break;
 489           case 1: TEST_ASSERT_EQ(USCRIPT_VAI, n); break;
 490           case 2: TEST_ASSERT_EQ(USCRIPT_AFAKA, n); break;
 491           case 3: TEST_ASSERT_EQ(-1, (int32_t)n); break;
 492           default: TEST_ASSERT(FALSE);
 493         }
 494     }
 495     TEST_ASSERT_SUCCESS(status);
 496
 497     // Script extensions.  Depends on data.
 498     s1.resetAll();
 499     s1.setScriptExtensions(0x67, status);
 500     TEST_ASSERT(s1.countMembers() == 1);
 501     TEST_ASSERT(s1.test(USCRIPT_LATIN, status));
 502     TEST_ASSERT_SUCCESS(status);
 503
 504     s1.resetAll();
 505     s1.setScriptExtensions(0x303C, status);
 506     TEST_ASSERT(s1.countMembers() == 3);
 507     TEST_ASSERT(s1.test(USCRIPT_HAN, status));
 508     TEST_ASSERT(s1.test(USCRIPT_HIRAGANA, status));
 509     TEST_ASSERT(s1.test(USCRIPT_KATAKANA, status));
 510     TEST_ASSERT_SUCCESS(status);
 511
 512     // Additional tests
 513     ScriptSet bitset12; bitset12.set(USCRIPT_LATIN, status).set(USCRIPT_HANGUL, status);
 514     ScriptSet bitset2;  bitset2.set(USCRIPT_HANGUL, status);
 515     TEST_ASSERT(bitset12.contains(bitset2));
 516     TEST_ASSERT(bitset12.contains(bitset12));
 517     TEST_ASSERT(!bitset2.contains(bitset12));
 518
 519     ScriptSet arabSet;  arabSet.set(USCRIPT_ARABIC, status);
 520     ScriptSet latinSet; latinSet.set(USCRIPT_LATIN, status);
 521     UElement arabEl;  arabEl.pointer = &arabSet;
 522     UElement latinEl; latinEl.pointer = &latinSet;
 523     TEST_ASSERT(uhash_compareScriptSet(arabEl, latinEl) < 0);
 524     TEST_ASSERT(uhash_compareScriptSet(latinEl, arabEl) > 0);
 525
 526     UnicodeString scriptString;
 527     bitset12.displayScripts(scriptString);
 528     TEST_ASSERT(UNICODE_STRING_SIMPLE("Hang Latn") == scriptString);
 529 }
 530
 531
 532 void IntlTestSpoof::testRestrictionLevel() {
 533     struct Test {
 534         const char         *fId;
 535         URestrictionLevel   fExpectedRestrictionLevel;
 536     } tests[] = {
 537         {"\\u0061\\u03B3\\u2665", USPOOF_UNRESTRICTIVE},
 538         {"a",                     USPOOF_ASCII},
 539         {"\\u03B3",               USPOOF_SINGLE_SCRIPT_RESTRICTIVE},
 540         {"\\u0061\\u30A2\\u30FC", USPOOF_HIGHLY_RESTRICTIVE},
 541         {"\\u0061\\u0904",        USPOOF_MODERATELY_RESTRICTIVE},
 542         {"\\u0061\\u03B3",        USPOOF_MINIMALLY_RESTRICTIVE},
 543         {"\\u0061\\u2665",                USPOOF_UNRESTRICTIVE},
 544         {"\\u0061\\u303C",                USPOOF_HIGHLY_RESTRICTIVE},
 545         {"\\u0061\\u30FC\\u303C",         USPOOF_HIGHLY_RESTRICTIVE},
 546         {"\\u0061\\u30FC\\u303C\\u30A2",  USPOOF_HIGHLY_RESTRICTIVE},
 547         {"\\u30A2\\u0061\\u30FC\\u303C",  USPOOF_HIGHLY_RESTRICTIVE},
 548         {"\\u0061\\u0031\\u0661",         USPOOF_MODERATELY_RESTRICTIVE},
 549         {"\\u0061\\u0031\\u0661\\u06F1",  USPOOF_MODERATELY_RESTRICTIVE},
 550         {"\\u0661\\u30FC\\u303C\\u0061\\u30A2\\u0031\\u0967\\u06F1",  USPOOF_MINIMALLY_RESTRICTIVE},
 551         {"\\u0061\\u30A2\\u30FC\\u303C\\u0031\\u0967\\u0661\\u06F1",  USPOOF_MINIMALLY_RESTRICTIVE}
 552     };
 553     char msgBuffer[100];
 554     URestrictionLevel restrictionLevels[] = { USPOOF_ASCII, USPOOF_SINGLE_SCRIPT_RESTRICTIVE,
 555         USPOOF_HIGHLY_RESTRICTIVE, USPOOF_MODERATELY_RESTRICTIVE, USPOOF_MINIMALLY_RESTRICTIVE,
 556         USPOOF_UNRESTRICTIVE};
 557
 558     UErrorCode status = U_ZERO_ERROR;
 559     UnicodeSet allowedChars;
 560     // Allowed Identifier Characters. In addition to the Recommended Set,
 561     //    allow u303c, which has an interesting script extension of Hani Hira Kana.
 562     allowedChars.addAll(*uspoof_getRecommendedUnicodeSet(&status)).add(0x303C);
 563
 564     for (int32_t testNum=0; testNum < UPRV_LENGTHOF(tests); testNum++) {
 565         status = U_ZERO_ERROR;
 566         const Test &test = tests[testNum];
 567         UnicodeString testString = UnicodeString(test.fId).unescape();
 568         URestrictionLevel expectedLevel = test.fExpectedRestrictionLevel;
 569         for (int levelIndex=0; levelIndex<UPRV_LENGTHOF(restrictionLevels); levelIndex++) {
 570             status = U_ZERO_ERROR;
 571             URestrictionLevel levelSetInSpoofChecker = restrictionLevels[levelIndex];
 572             USpoofChecker *sc = uspoof_open(&status);
 573             uspoof_setAllowedChars(sc, allowedChars.toUSet(), &status);
 574             uspoof_setRestrictionLevel(sc, levelSetInSpoofChecker);
 575             uspoof_setChecks(sc, USPOOF_RESTRICTION_LEVEL, &status);
 576             int32_t actualValue = uspoof_checkUnicodeString(sc, testString, NULL, &status);
 577
 578             // we want to fail if the text is (say) MODERATE and the testLevel is ASCII
 579             int32_t expectedValue = 0;
 580             if (expectedLevel > levelSetInSpoofChecker) {
 581                 expectedValue |= USPOOF_RESTRICTION_LEVEL;
 582             }
 583             sprintf(msgBuffer, "testNum = %d, levelIndex = %d, expected = %#x, actual = %#x",
 584                     testNum, levelIndex, expectedValue, actualValue);
 585             TEST_ASSERT_MSG(expectedValue == actualValue, msgBuffer);
 586             TEST_ASSERT_SUCCESS(status);
 587
 588             // Run the same check again, with the Spoof Checker configured to return
 589             // the actual restriction level.
 590             uspoof_setAllowedChars(sc, allowedChars.toUSet(), &status);
 591             uspoof_setRestrictionLevel(sc, levelSetInSpoofChecker);
 592             uspoof_setChecks(sc, USPOOF_AUX_INFO | USPOOF_RESTRICTION_LEVEL, &status);
 593             int32_t result = uspoof_checkUnicodeString(sc, testString, NULL, &status);
 594             TEST_ASSERT_SUCCESS(status);
 595             if (U_SUCCESS(status)) {
 596                 TEST_ASSERT_EQ(expectedLevel, result & USPOOF_RESTRICTION_LEVEL_MASK);
 597                 TEST_ASSERT_EQ(expectedValue, result & USPOOF_ALL_CHECKS);
 598             }
 599             uspoof_close(sc);
 600         }
 601     }
 602
 603 }
 604
 605 void IntlTestSpoof::testMixedNumbers() {
 606     struct Test {
 607         const char *fTestString;
 608         const char *fExpectedSet;
 609     } tests[] = {
 610         {"1",              "[0]"},
 611         {"\\u0967",        "[\\u0966]"},
 612         {"1\\u0967",       "[0\\u0966]"},
 613         {"\\u0661\\u06F1", "[\\u0660\\u06F0]"},
 614         {"\\u0061\\u2665", "[]"},
 615         {"\\u0061\\u303C", "[]"},
 616         {"\\u0061\\u30FC\\u303C", "[]"},
 617         {"\\u0061\\u30FC\\u303C\\u30A2", "[]"},
 618         {"\\u30A2\\u0061\\u30FC\\u303C", "[]"},
 619         {"\\u0061\\u0031\\u0661", "[\\u0030\\u0660]"},
 620         {"\\u0061\\u0031\\u0661\\u06F1", "[\\u0030\\u0660\\u06F0]"},
 621         {"\\u0661\\u30FC\\u303C\\u0061\\u30A2\\u0031\\u0967\\u06F1", "[\\u0030\\u0660\\u06F0\\u0966]"},
 622         {"\\u0061\\u30A2\\u30FC\\u303C\\u0031\\u0967\\u0661\\u06F1", "[\\u0030\\u0660\\u06F0\\u0966]"}
 623     };
 624     UErrorCode status = U_ZERO_ERROR;
 625     for (int32_t testNum=0; testNum < UPRV_LENGTHOF(tests); testNum++) {
 626         char msgBuf[100];
 627         sprintf(msgBuf, "testNum = %d ", testNum);
 628         Test &test = tests[testNum];
 629
 630         status = U_ZERO_ERROR;
 631         UnicodeString testString = UnicodeString(test.fTestString).unescape();
 632         UnicodeSet expectedSet(UnicodeString(test.fExpectedSet).unescape(), status);
 633
 634         status = U_ZERO_ERROR;
 635         TEST_SETUP
 636             uspoof_setChecks(sc, USPOOF_MIXED_NUMBERS, &status); // only check this
 637             uspoof_check2UnicodeString(sc, testString, checkResult, &status);
 638             UBool mixedNumberFailure = ((uspoof_getCheckResultChecks(checkResult, &status) & USPOOF_MIXED_NUMBERS) != 0);
 639             TEST_ASSERT_MSG((expectedSet.size() > 1) == mixedNumberFailure, msgBuf);
 640             const UnicodeSet* actualSet = UnicodeSet::fromUSet(uspoof_getCheckResultNumerics(checkResult, &status));
 641             TEST_ASSERT_MSG(expectedSet == *actualSet, msgBuf);
 642         TEST_TEARDOWN
 643     }
 644 }
 645
 646 // Bug #12153 - uspoof_setRestrictionLevel() should enable restriction level testing.
 647 //
 648 void IntlTestSpoof::testBug12153() {
 649     UErrorCode status = U_ZERO_ERROR;
 650     LocalUSpoofCheckerPointer sc(uspoof_open(&status));
 651     if (!assertSuccess("", status, true, __FILE__, __LINE__)) { return; }
 652     int32_t checks = uspoof_getChecks(sc.getAlias(), &status);
 653     TEST_ASSERT((checks & USPOOF_RESTRICTION_LEVEL) != 0);
 654     checks &= ~USPOOF_RESTRICTION_LEVEL;
 655     uspoof_setChecks(sc.getAlias(), checks, &status);
 656     checks = uspoof_getChecks(sc.getAlias(), &status);
 657     TEST_ASSERT((checks & USPOOF_RESTRICTION_LEVEL) == 0);
 658
 659     uspoof_setRestrictionLevel(sc.getAlias(), USPOOF_MODERATELY_RESTRICTIVE);
 660     checks = uspoof_getChecks(sc.getAlias(), &status);
 661     TEST_ASSERT((checks & USPOOF_RESTRICTION_LEVEL) != 0);
 662     TEST_ASSERT_SUCCESS(status);
 663 }
 664
 665 // uspoof_checkUnicodeString should NOT have an infinite loop.
 666 void IntlTestSpoof::testBug12825() {
 667     UErrorCode status = U_ZERO_ERROR;
 668     LocalUSpoofCheckerPointer sc(uspoof_open(&status));
 669     TEST_ASSERT_SUCCESS(status);
 670     uspoof_setChecks(sc.getAlias(), USPOOF_ALL_CHECKS | USPOOF_AUX_INFO, &status);
 671     TEST_ASSERT_SUCCESS(status);
 672     uspoof_checkUnicodeString(sc.getAlias(), UnicodeString("\\u30FB").unescape(), NULL, &status);
 673     TEST_ASSERT_SUCCESS(status);
 674 }
 675
 676 // uspoof_getSkeleton should NOT set an ILLEGAL_ARGUMENT_EXCEPTION.
 677 void IntlTestSpoof::testBug12815() {
 678     UErrorCode status = U_ZERO_ERROR;
 679     LocalUSpoofCheckerPointer sc(uspoof_open(&status));
 680     TEST_ASSERT_SUCCESS(status);
 681     uspoof_setChecks(sc.getAlias(), USPOOF_RESTRICTION_LEVEL, &status);
 682     TEST_ASSERT_SUCCESS(status);
 683     UnicodeString result;
 684     uspoof_getSkeletonUnicodeString(sc.getAlias(), 0, UnicodeString("hello world"), result, &status);
 685     TEST_ASSERT_SUCCESS(status);
 686 }
 687
 688 void IntlTestSpoof::testBug13314_MixedNumbers() {
 689     UErrorCode status = U_ZERO_ERROR;
 690     LocalUSpoofCheckerPointer sc(uspoof_open(&status));
 691     if (!assertSuccess("", status, true, __FILE__, __LINE__)) { return; }
 692     uspoof_setChecks(sc.getAlias(), USPOOF_ALL_CHECKS, &status);
 693     TEST_ASSERT_SUCCESS(status);
 694     int32_t failedChecks = uspoof_areConfusableUnicodeString(sc.getAlias(), u"列", u"列", &status);
 695     TEST_ASSERT_SUCCESS(status);
 696     assertEquals("The CJK strings should be confusable", USPOOF_SINGLE_SCRIPT_CONFUSABLE, failedChecks);
 697     failedChecks = uspoof_check2UnicodeString(sc.getAlias(), u"3Ȝ", nullptr, &status);
 698     TEST_ASSERT_SUCCESS(status);
 699     assertEquals("The '33' string does not fail spoof", 0, failedChecks);
 700 }
 701
 702 void IntlTestSpoof::testBug13328_MixedCombiningMarks() {
 703     UErrorCode status = U_ZERO_ERROR;
 704     LocalUSpoofCheckerPointer sc(uspoof_open(&status));
 705     if (!assertSuccess("", status, true, __FILE__, __LINE__)) { return; }
 706     int32_t failedChecks = uspoof_check2UnicodeString(sc.getAlias(), u"\u0061\u0F84", nullptr, &status);
 707     TEST_ASSERT_SUCCESS(status);
 708     assertEquals(
 709             "The mismatched combining marks string fails spoof",
 710             USPOOF_RESTRICTION_LEVEL,
 711             failedChecks);
 712 }
 713
 714 void IntlTestSpoof::testCombiningDot() {
 715     UErrorCode status = U_ZERO_ERROR;
 716     LocalUSpoofCheckerPointer sc(uspoof_open(&status));
 717     if (!assertSuccess("", status, true, __FILE__, __LINE__)) { return; }
 718     uspoof_setChecks(sc.getAlias(), USPOOF_HIDDEN_OVERLAY, &status);
 719     TEST_ASSERT_SUCCESS(status);
 720
 721     static const struct TestCase {
 722         bool shouldFail;
 723         const char16_t* input;
 724     } cases[] = {
 725             {false, u"i"},
 726             {false, u"j"},
 727             {false, u"l"},
 728             {true, u"i\u0307"},
 729             {true, u"j\u0307"},
 730             {true, u"l\u0307"},
 731             {true, u"ı\u0307"},
 732             {true, u"ȷ\u0307"},
 733             {true, u"𝚤\u0307"},
 734             {true, u"𝑗\u0307"},
 735             {false, u"m\u0307"},
 736             {true, u"1\u0307"},
 737             {true, u"ĳ\u0307"},
 738             {true, u"i\u0307\u0307"},
 739             {true, u"abci\u0307def"},
 740             {false, u"i\u0301\u0307"}, // U+0301 has combining class ABOVE (230)
 741             {true, u"i\u0320\u0307"}, // U+0320 has combining class BELOW
 742             {true, u"i\u0320\u0321\u0307"}, // U+0321 also has combining class BELOW
 743             {false, u"i\u0320\u0301\u0307"},
 744             {false, u"iz\u0307"},
 745     };
 746
 747     for (auto& cas : cases) {
 748         int32_t failedChecks = uspoof_check2(sc.getAlias(), cas.input, -1, nullptr, &status);
 749         TEST_ASSERT_SUCCESS(status);
 750         int32_t expected = cas.shouldFail ? USPOOF_HIDDEN_OVERLAY : 0;
 751         assertEquals(cas.input, expected, failedChecks);
 752     }
 753 }
 754
 755 #endif /* !UCONFIG_NO_REGULAR_EXPRESSIONS && !UCONFIG_NO_NORMALIZATION && !UCONFIG_NO_FILE_IO */