icuSources/test/intltest/ucdtest.cpp

   1 /********************************************************************
   2  * COPYRIGHT:
   3  * Copyright (c) 1997-2013, International Business Machines Corporation and
   4  * others. All Rights Reserved.
   5  ********************************************************************/
   6
   7 #include "unicode/ustring.h"
   8 #include "unicode/uchar.h"
   9 #include "unicode/uniset.h"
  10 #include "unicode/putil.h"
  11 #include "unicode/uscript.h"
  12 #include "cstring.h"
  13 #include "hash.h"
  14 #include "patternprops.h"
  15 #include "normalizer2impl.h"
  16 #include "uparse.h"
  17 #include "ucdtest.h"
  18
  19 #define LENGTHOF(array) (int32_t)(sizeof(array)/sizeof(array[0]))
  20
  21 static const char *ignorePropNames[]={
  22     "FC_NFKC",
  23     "NFD_QC",
  24     "NFC_QC",
  25     "NFKD_QC",
  26     "NFKC_QC",
  27     "Expands_On_NFD",
  28     "Expands_On_NFC",
  29     "Expands_On_NFKD",
  30     "Expands_On_NFKC",
  31     "NFKC_CF"
  32 };
  33
  34 UnicodeTest::UnicodeTest()
  35 {
  36     UErrorCode errorCode=U_ZERO_ERROR;
  37     unknownPropertyNames=new U_NAMESPACE_QUALIFIER Hashtable(errorCode);
  38     if(U_FAILURE(errorCode)) {
  39         delete unknownPropertyNames;
  40         unknownPropertyNames=NULL;
  41     }
  42     // Ignore some property names altogether.
  43     for(int32_t i=0; i<LENGTHOF(ignorePropNames); ++i) {
  44         unknownPropertyNames->puti(UnicodeString(ignorePropNames[i], -1, US_INV), 1, errorCode);
  45     }
  46 }
  47
  48 UnicodeTest::~UnicodeTest()
  49 {
  50     delete unknownPropertyNames;
  51 }
  52
  53 void UnicodeTest::runIndexedTest( int32_t index, UBool exec, const char* &name, char* /*par*/ )
  54 {
  55     if(exec) {
  56         logln("TestSuite UnicodeTest: ");
  57     }
  58     TESTCASE_AUTO_BEGIN;
  59     TESTCASE_AUTO(TestAdditionalProperties);
  60     TESTCASE_AUTO(TestBinaryValues);
  61     TESTCASE_AUTO(TestConsistency);
  62     TESTCASE_AUTO(TestPatternProperties);
  63     TESTCASE_AUTO(TestScriptMetadata);
  64     TESTCASE_AUTO(TestBidiPairedBracketType);
  65     TESTCASE_AUTO_END;
  66 }
  67
  68 //====================================================
  69 // private data used by the tests
  70 //====================================================
  71
  72 // test DerivedCoreProperties.txt -------------------------------------------
  73
  74 // copied from genprops.c
  75 static int32_t
  76 getTokenIndex(const char *const tokens[], int32_t countTokens, const char *s) {
  77     const char *t, *z;
  78     int32_t i, j;
  79
  80     s=u_skipWhitespace(s);
  81     for(i=0; i<countTokens; ++i) {
  82         t=tokens[i];
  83         if(t!=NULL) {
  84             for(j=0;; ++j) {
  85                 if(t[j]!=0) {
  86                     if(s[j]!=t[j]) {
  87                         break;
  88                     }
  89                 } else {
  90                     z=u_skipWhitespace(s+j);
  91                     if(*z==';' || *z==0) {
  92                         return i;
  93                     } else {
  94                         break;
  95                     }
  96                 }
  97             }
  98         }
  99     }
 100     return -1;
 101 }
 102
 103 static const char *const
 104 derivedPropsNames[]={
 105     "Math",
 106     "Alphabetic",
 107     "Lowercase",
 108     "Uppercase",
 109     "ID_Start",
 110     "ID_Continue",
 111     "XID_Start",
 112     "XID_Continue",
 113     "Default_Ignorable_Code_Point",
 114     "Full_Composition_Exclusion",
 115     "Grapheme_Extend",
 116     "Grapheme_Link", /* Unicode 5 moves this property here from PropList.txt */
 117     "Grapheme_Base",
 118     "Cased",
 119     "Case_Ignorable",
 120     "Changes_When_Lowercased",
 121     "Changes_When_Uppercased",
 122     "Changes_When_Titlecased",
 123     "Changes_When_Casefolded",
 124     "Changes_When_Casemapped",
 125     "Changes_When_NFKC_Casefolded"
 126 };
 127
 128 static const UProperty
 129 derivedPropsIndex[]={
 130     UCHAR_MATH,
 131     UCHAR_ALPHABETIC,
 132     UCHAR_LOWERCASE,
 133     UCHAR_UPPERCASE,
 134     UCHAR_ID_START,
 135     UCHAR_ID_CONTINUE,
 136     UCHAR_XID_START,
 137     UCHAR_XID_CONTINUE,
 138     UCHAR_DEFAULT_IGNORABLE_CODE_POINT,
 139     UCHAR_FULL_COMPOSITION_EXCLUSION,
 140     UCHAR_GRAPHEME_EXTEND,
 141     UCHAR_GRAPHEME_LINK,
 142     UCHAR_GRAPHEME_BASE,
 143     UCHAR_CASED,
 144     UCHAR_CASE_IGNORABLE,
 145     UCHAR_CHANGES_WHEN_LOWERCASED,
 146     UCHAR_CHANGES_WHEN_UPPERCASED,
 147     UCHAR_CHANGES_WHEN_TITLECASED,
 148     UCHAR_CHANGES_WHEN_CASEFOLDED,
 149     UCHAR_CHANGES_WHEN_CASEMAPPED,
 150     UCHAR_CHANGES_WHEN_NFKC_CASEFOLDED
 151 };
 152
 153 static int32_t numErrors[LENGTHOF(derivedPropsIndex)]={ 0 };
 154
 155 enum { MAX_ERRORS=50 };
 156
 157 U_CFUNC void U_CALLCONV
 158 derivedPropsLineFn(void *context,
 159                    char *fields[][2], int32_t /* fieldCount */,
 160                    UErrorCode *pErrorCode)
 161 {
 162     UnicodeTest *me=(UnicodeTest *)context;
 163     uint32_t start, end;
 164     int32_t i;
 165
 166     u_parseCodePointRange(fields[0][0], &start, &end, pErrorCode);
 167     if(U_FAILURE(*pErrorCode)) {
 168         me->errln("UnicodeTest: syntax error in DerivedCoreProperties.txt or DerivedNormalizationProps.txt field 0 at %s\n", fields[0][0]);
 169         return;
 170     }
 171
 172     /* parse derived binary property name, ignore unknown names */
 173     i=getTokenIndex(derivedPropsNames, LENGTHOF(derivedPropsNames), fields[1][0]);
 174     if(i<0) {
 175         UnicodeString propName(fields[1][0], (int32_t)(fields[1][1]-fields[1][0]));
 176         propName.trim();
 177         if(me->unknownPropertyNames->find(propName)==NULL) {
 178             UErrorCode errorCode=U_ZERO_ERROR;
 179             me->unknownPropertyNames->puti(propName, 1, errorCode);
 180             me->errln("UnicodeTest warning: unknown property name '%s' in DerivedCoreProperties.txt or DerivedNormalizationProps.txt\n", fields[1][0]);
 181         }
 182         return;
 183     }
 184
 185     me->derivedProps[i].add(start, end);
 186 }
 187
 188 void UnicodeTest::TestAdditionalProperties() {
 189 #if !UCONFIG_NO_NORMALIZATION
 190     // test DerivedCoreProperties.txt and DerivedNormalizationProps.txt
 191     if(LENGTHOF(derivedProps)<LENGTHOF(derivedPropsNames)) {
 192         errln("error: UnicodeTest::derivedProps[] too short, need at least %d UnicodeSets\n",
 193               LENGTHOF(derivedPropsNames));
 194         return;
 195     }
 196     if(LENGTHOF(derivedPropsIndex)!=LENGTHOF(derivedPropsNames)) {
 197         errln("error in ucdtest.cpp: LENGTHOF(derivedPropsIndex)!=LENGTHOF(derivedPropsNames)\n");
 198         return;
 199     }
 200
 201     char newPath[256];
 202     char backupPath[256];
 203     char *fields[2][2];
 204     UErrorCode errorCode=U_ZERO_ERROR;
 205
 206     /* Look inside ICU_DATA first */
 207     strcpy(newPath, pathToDataDirectory());
 208     strcat(newPath, "unidata" U_FILE_SEP_STRING "DerivedCoreProperties.txt");
 209
 210     // As a fallback, try to guess where the source data was located
 211     // at the time ICU was built, and look there.
 212 #   ifdef U_TOPSRCDIR
 213         strcpy(backupPath, U_TOPSRCDIR  U_FILE_SEP_STRING "data");
 214 #   else
 215         strcpy(backupPath, loadTestData(errorCode));
 216         strcat(backupPath, U_FILE_SEP_STRING ".." U_FILE_SEP_STRING ".." U_FILE_SEP_STRING ".." U_FILE_SEP_STRING ".." U_FILE_SEP_STRING "data");
 217 #   endif
 218     strcat(backupPath, U_FILE_SEP_STRING);
 219     strcat(backupPath, "unidata" U_FILE_SEP_STRING "DerivedCoreProperties.txt");
 220
 221     char *path=newPath;
 222     u_parseDelimitedFile(newPath, ';', fields, 2, derivedPropsLineFn, this, &errorCode);
 223
 224     if(errorCode==U_FILE_ACCESS_ERROR) {
 225         errorCode=U_ZERO_ERROR;
 226         path=backupPath;
 227         u_parseDelimitedFile(backupPath, ';', fields, 2, derivedPropsLineFn, this, &errorCode);
 228     }
 229     if(U_FAILURE(errorCode)) {
 230         errln("error parsing DerivedCoreProperties.txt: %s\n", u_errorName(errorCode));
 231         return;
 232     }
 233     char *basename=path+strlen(path)-strlen("DerivedCoreProperties.txt");
 234     strcpy(basename, "DerivedNormalizationProps.txt");
 235     u_parseDelimitedFile(path, ';', fields, 2, derivedPropsLineFn, this, &errorCode);
 236     if(U_FAILURE(errorCode)) {
 237         errln("error parsing DerivedNormalizationProps.txt: %s\n", u_errorName(errorCode));
 238         return;
 239     }
 240
 241     // now we have all derived core properties in the UnicodeSets
 242     // run them all through the API
 243     int32_t rangeCount, range;
 244     uint32_t i;
 245     UChar32 start, end;
 246
 247     // test all TRUE properties
 248     for(i=0; i<LENGTHOF(derivedPropsNames); ++i) {
 249         rangeCount=derivedProps[i].getRangeCount();
 250         for(range=0; range<rangeCount && numErrors[i]<MAX_ERRORS; ++range) {
 251             start=derivedProps[i].getRangeStart(range);
 252             end=derivedProps[i].getRangeEnd(range);
 253             for(; start<=end; ++start) {
 254                 if(!u_hasBinaryProperty(start, derivedPropsIndex[i])) {
 255                     dataerrln("UnicodeTest error: u_hasBinaryProperty(U+%04lx, %s)==FALSE is wrong", start, derivedPropsNames[i]);
 256                     if(++numErrors[i]>=MAX_ERRORS) {
 257                       dataerrln("Too many errors, moving to the next test");
 258                       break;
 259                     }
 260                 }
 261             }
 262         }
 263     }
 264
 265     // invert all properties
 266     for(i=0; i<LENGTHOF(derivedPropsNames); ++i) {
 267         derivedProps[i].complement();
 268     }
 269
 270     // test all FALSE properties
 271     for(i=0; i<LENGTHOF(derivedPropsNames); ++i) {
 272         rangeCount=derivedProps[i].getRangeCount();
 273         for(range=0; range<rangeCount && numErrors[i]<MAX_ERRORS; ++range) {
 274             start=derivedProps[i].getRangeStart(range);
 275             end=derivedProps[i].getRangeEnd(range);
 276             for(; start<=end; ++start) {
 277                 if(u_hasBinaryProperty(start, derivedPropsIndex[i])) {
 278                     errln("UnicodeTest error: u_hasBinaryProperty(U+%04lx, %s)==TRUE is wrong\n", start, derivedPropsNames[i]);
 279                     if(++numErrors[i]>=MAX_ERRORS) {
 280                       errln("Too many errors, moving to the next test");
 281                       break;
 282                     }
 283                 }
 284             }
 285         }
 286     }
 287 #endif /* !UCONFIG_NO_NORMALIZATION */
 288 }
 289
 290 void UnicodeTest::TestBinaryValues() {
 291     /*
 292      * Unicode 5.1 explicitly defines binary property value aliases.
 293      * Verify that they are all recognized.
 294      */
 295     UErrorCode errorCode=U_ZERO_ERROR;
 296     UnicodeSet alpha(UNICODE_STRING_SIMPLE("[:Alphabetic:]"), errorCode);
 297     if(U_FAILURE(errorCode)) {
 298         dataerrln("UnicodeSet([:Alphabetic:]) failed - %s", u_errorName(errorCode));
 299         return;
 300     }
 301
 302     static const char *const falseValues[]={ "N", "No", "F", "False" };
 303     static const char *const trueValues[]={ "Y", "Yes", "T", "True" };
 304     int32_t i;
 305     for(i=0; i<LENGTHOF(falseValues); ++i) {
 306         UnicodeString pattern=UNICODE_STRING_SIMPLE("[:Alphabetic=:]");
 307         pattern.insert(pattern.length()-2, UnicodeString(falseValues[i], -1, US_INV));
 308         errorCode=U_ZERO_ERROR;
 309         UnicodeSet set(pattern, errorCode);
 310         if(U_FAILURE(errorCode)) {
 311             errln("UnicodeSet([:Alphabetic=%s:]) failed - %s\n", falseValues[i], u_errorName(errorCode));
 312             continue;
 313         }
 314         set.complement();
 315         if(set!=alpha) {
 316             errln("UnicodeSet([:Alphabetic=%s:]).complement()!=UnicodeSet([:Alphabetic:])\n", falseValues[i]);
 317         }
 318     }
 319     for(i=0; i<LENGTHOF(trueValues); ++i) {
 320         UnicodeString pattern=UNICODE_STRING_SIMPLE("[:Alphabetic=:]");
 321         pattern.insert(pattern.length()-2, UnicodeString(trueValues[i], -1, US_INV));
 322         errorCode=U_ZERO_ERROR;
 323         UnicodeSet set(pattern, errorCode);
 324         if(U_FAILURE(errorCode)) {
 325             errln("UnicodeSet([:Alphabetic=%s:]) failed - %s\n", trueValues[i], u_errorName(errorCode));
 326             continue;
 327         }
 328         if(set!=alpha) {
 329             errln("UnicodeSet([:Alphabetic=%s:])!=UnicodeSet([:Alphabetic:])\n", trueValues[i]);
 330         }
 331     }
 332 }
 333
 334 void UnicodeTest::TestConsistency() {
 335 #if !UCONFIG_NO_NORMALIZATION
 336     /*
 337      * Test for an example that getCanonStartSet() delivers
 338      * all characters that compose from the input one,
 339      * even in multiple steps.
 340      * For example, the set for "I" (0049) should contain both
 341      * I-diaeresis (00CF) and I-diaeresis-acute (1E2E).
 342      * In general, the set for the middle such character should be a subset
 343      * of the set for the first.
 344      */
 345     IcuTestErrorCode errorCode(*this, "TestConsistency");
 346     const Normalizer2 *nfd=Normalizer2::getNFDInstance(errorCode);
 347     const Normalizer2Impl *nfcImpl=Normalizer2Factory::getNFCImpl(errorCode);
 348     if(!nfcImpl->ensureCanonIterData(errorCode) || errorCode.isFailure()) {
 349         dataerrln("Normalizer2::getInstance(NFD) or Normalizer2Factory::getNFCImpl() failed - %s\n",
 350                   errorCode.errorName());
 351         errorCode.reset();
 352         return;
 353     }
 354
 355     UnicodeSet set1, set2;
 356     if (nfcImpl->getCanonStartSet(0x49, set1)) {
 357         /* enumerate all characters that are plausible to be latin letters */
 358         for(UChar start=0xa0; start<0x2000; ++start) {
 359             UnicodeString decomp=nfd->normalize(UnicodeString(start), errorCode);
 360             if(decomp.length()>1 && decomp[0]==0x49) {
 361                 set2.add(start);
 362             }
 363         }
 364
 365         if (set1!=set2) {
 366             errln("[canon start set of 0049] != [all c with canon decomp with 0049]");
 367         }
 368         // This was available in cucdtst.c but the test had to move to intltest
 369         // because the new internal normalization functions are in C++.
 370         //compareUSets(set1, set2,
 371         //             "[canon start set of 0049]", "[all c with canon decomp with 0049]",
 372         //             TRUE);
 373     } else {
 374         errln("NFC.getCanonStartSet() returned FALSE");
 375     }
 376 #endif
 377 }
 378
 379 /**
 380  * Test various implementations of Pattern_Syntax & Pattern_White_Space.
 381  */
 382 void UnicodeTest::TestPatternProperties() {
 383     IcuTestErrorCode errorCode(*this, "TestPatternProperties()");
 384     UnicodeSet syn_pp;
 385     UnicodeSet syn_prop(UNICODE_STRING_SIMPLE("[:Pattern_Syntax:]"), errorCode);
 386     UnicodeSet syn_list(
 387         "[!-/\\:-@\\[-\\^`\\{-~"
 388         "\\u00A1-\\u00A7\\u00A9\\u00AB\\u00AC\\u00AE\\u00B0\\u00B1\\u00B6\\u00BB\\u00BF\\u00D7\\u00F7"
 389         "\\u2010-\\u2027\\u2030-\\u203E\\u2041-\\u2053\\u2055-\\u205E\\u2190-\\u245F\\u2500-\\u2775"
 390         "\\u2794-\\u2BFF\\u2E00-\\u2E7F\\u3001-\\u3003\\u3008-\\u3020\\u3030\\uFD3E\\uFD3F\\uFE45\\uFE46]", errorCode);
 391     UnicodeSet ws_pp;
 392     UnicodeSet ws_prop(UNICODE_STRING_SIMPLE("[:Pattern_White_Space:]"), errorCode);
 393     UnicodeSet ws_list(UNICODE_STRING_SIMPLE("[\\u0009-\\u000D\\ \\u0085\\u200E\\u200F\\u2028\\u2029]"), errorCode);
 394     UnicodeSet syn_ws_pp;
 395     UnicodeSet syn_ws_prop(syn_prop);
 396     syn_ws_prop.addAll(ws_prop);
 397     for(UChar32 c=0; c<=0xffff; ++c) {
 398         if(PatternProps::isSyntax(c)) {
 399             syn_pp.add(c);
 400         }
 401         if(PatternProps::isWhiteSpace(c)) {
 402             ws_pp.add(c);
 403         }
 404         if(PatternProps::isSyntaxOrWhiteSpace(c)) {
 405             syn_ws_pp.add(c);
 406         }
 407     }
 408     compareUSets(syn_pp, syn_prop,
 409                  "PatternProps.isSyntax()", "[:Pattern_Syntax:]", TRUE);
 410     compareUSets(syn_pp, syn_list,
 411                  "PatternProps.isSyntax()", "[Pattern_Syntax ranges]", TRUE);
 412     compareUSets(ws_pp, ws_prop,
 413                  "PatternProps.isWhiteSpace()", "[:Pattern_White_Space:]", TRUE);
 414     compareUSets(ws_pp, ws_list,
 415                  "PatternProps.isWhiteSpace()", "[Pattern_White_Space ranges]", TRUE);
 416     compareUSets(syn_ws_pp, syn_ws_prop,
 417                  "PatternProps.isSyntaxOrWhiteSpace()",
 418                  "[[:Pattern_Syntax:][:Pattern_White_Space:]]", TRUE);
 419 }
 420
 421 // So far only minimal port of Java & cucdtst.c compareUSets().
 422 UBool
 423 UnicodeTest::compareUSets(const UnicodeSet &a, const UnicodeSet &b,
 424                           const char *a_name, const char *b_name,
 425                           UBool diffIsError) {
 426     UBool same= a==b;
 427     if(!same && diffIsError) {
 428         errln("Sets are different: %s vs. %s\n", a_name, b_name);
 429     }
 430     return same;
 431 }
 432
 433 namespace {
 434
 435 /**
 436  * Maps a special script code to the most common script of its encoded characters.
 437  */
 438 UScriptCode getCharScript(UScriptCode script) {
 439     switch(script) {
 440     case USCRIPT_SIMPLIFIED_HAN:
 441     case USCRIPT_TRADITIONAL_HAN:
 442         return USCRIPT_HAN;
 443     case USCRIPT_JAPANESE:
 444         return USCRIPT_HIRAGANA;
 445     case USCRIPT_KOREAN:
 446         return USCRIPT_HANGUL;
 447     default:
 448         return script;
 449     }
 450 }
 451
 452 }  // namespace
 453
 454 void UnicodeTest::TestScriptMetadata() {
 455     IcuTestErrorCode errorCode(*this, "TestScriptMetadata()");
 456     UnicodeSet rtl("[[:bc=R:][:bc=AL:]-[:Cn:]-[:sc=Common:]]", errorCode);
 457     // So far, sample characters are uppercase.
 458     // Georgian is special.
 459     UnicodeSet cased("[[:Lu:]-[:sc=Common:]-[:sc=Geor:]]", errorCode);
 460     for(int32_t sci = 0; sci < USCRIPT_CODE_LIMIT; ++sci) {
 461         UScriptCode sc = (UScriptCode)sci;
 462         // Run the test with -v to see which script has failures:
 463         // .../intltest$ make && ./intltest utility/UnicodeTest/TestScriptMetadata -v | grep -C 3 FAIL
 464         logln(uscript_getShortName(sc));
 465         UScriptUsage usage = uscript_getUsage(sc);
 466         UnicodeString sample = uscript_getSampleUnicodeString(sc);
 467         UnicodeSet scriptSet;
 468         scriptSet.applyIntPropertyValue(UCHAR_SCRIPT, sc, errorCode);
 469         if(usage == USCRIPT_USAGE_NOT_ENCODED) {
 470             assertTrue("not encoded, no sample", sample.isEmpty());
 471             assertFalse("not encoded, not RTL", uscript_isRightToLeft(sc));
 472             assertFalse("not encoded, not LB letters", uscript_breaksBetweenLetters(sc));
 473             assertFalse("not encoded, not cased", uscript_isCased(sc));
 474             assertTrue("not encoded, no characters", scriptSet.isEmpty());
 475         } else {
 476             assertFalse("encoded, has a sample character", sample.isEmpty());
 477             UChar32 firstChar = sample.char32At(0);
 478             UScriptCode charScript = getCharScript(sc);
 479             assertEquals("script(sample(script))",
 480                          (int32_t)charScript, (int32_t)uscript_getScript(firstChar, errorCode));
 481             assertEquals("RTL vs. set", (UBool)rtl.contains(firstChar), (UBool)uscript_isRightToLeft(sc));
 482             assertEquals("cased vs. set", (UBool)cased.contains(firstChar), (UBool)uscript_isCased(sc));
 483             assertEquals("encoded, has characters", (UBool)(sc == charScript), (UBool)(!scriptSet.isEmpty()));
 484             if(uscript_isRightToLeft(sc)) {
 485                 rtl.removeAll(scriptSet);
 486             }
 487             if(uscript_isCased(sc)) {
 488                 cased.removeAll(scriptSet);
 489             }
 490         }
 491     }
 492     UnicodeString pattern;
 493     assertEquals("no remaining RTL characters",
 494                  UnicodeString("[]"), rtl.toPattern(pattern));
 495     assertEquals("no remaining cased characters",
 496                  UnicodeString("[]"), cased.toPattern(pattern));
 497
 498     assertTrue("Hani breaks between letters", uscript_breaksBetweenLetters(USCRIPT_HAN));
 499     assertTrue("Thai breaks between letters", uscript_breaksBetweenLetters(USCRIPT_THAI));
 500     assertFalse("Latn does not break between letters", uscript_breaksBetweenLetters(USCRIPT_LATIN));
 501 }
 502
 503 void UnicodeTest::TestBidiPairedBracketType() {
 504     // BidiBrackets-6.3.0.txt says:
 505     //
 506     // The set of code points listed in this file was originally derived
 507     // using the character properties General_Category (gc), Bidi_Class (bc),
 508     // Bidi_Mirrored (Bidi_M), and Bidi_Mirroring_Glyph (bmg), as follows:
 509     // two characters, A and B, form a pair if A has gc=Ps and B has gc=Pe,
 510     // both have bc=ON and Bidi_M=Y, and bmg of A is B. Bidi_Paired_Bracket
 511     // maps A to B and vice versa, and their Bidi_Paired_Bracket_Type
 512     // property values are Open and Close, respectively.
 513     IcuTestErrorCode errorCode(*this, "TestBidiPairedBracketType()");
 514     UnicodeSet bpt("[:^bpt=n:]", errorCode);
 515     assertTrue("bpt!=None is not empty", !bpt.isEmpty());
 516     // The following should always be true.
 517     UnicodeSet mirrored("[:Bidi_M:]", errorCode);
 518     UnicodeSet other_neutral("[:bc=ON:]", errorCode);
 519     assertTrue("bpt!=None is a subset of Bidi_M", mirrored.containsAll(bpt));
 520     assertTrue("bpt!=None is a subset of bc=ON", other_neutral.containsAll(bpt));
 521     // The following are true at least initially in Unicode 6.3.
 522     UnicodeSet bpt_open("[:bpt=o:]", errorCode);
 523     UnicodeSet bpt_close("[:bpt=c:]", errorCode);
 524     UnicodeSet ps("[:Ps:]", errorCode);
 525     UnicodeSet pe("[:Pe:]", errorCode);
 526     assertTrue("bpt=Open is a subset of Ps", ps.containsAll(bpt_open));
 527     assertTrue("bpt=Close is a subset of Pe", pe.containsAll(bpt_close));
 528 }