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      1 /*
      2 *******************************************************************************
      3 *
      4 *   Copyright (C) 2003-2010, International Business Machines
      5 *   Corporation and others.  All Rights Reserved.
      6 *
      7 *******************************************************************************
      8 *   file name:  convtest.cpp
      9 *   encoding:   US-ASCII
     10 *   tab size:   8 (not used)
     11 *   indentation:4
     12 *
     13 *   created on: 2003jul15
     14 *   created by: Markus W. Scherer
     15 *
     16 *   Test file for data-driven conversion tests.
     17 */
     18 
     19 #include "unicode/utypes.h"
     20 
     21 #if !UCONFIG_NO_LEGACY_CONVERSION
     22 /*
     23  * Note: Turning off all of convtest.cpp if !UCONFIG_NO_LEGACY_CONVERSION
     24  * is slightly unnecessary - it removes tests for Unicode charsets
     25  * like UTF-8 that should work.
     26  * However, there is no easy way for the test to detect whether a test case
     27  * is for a Unicode charset, so it would be difficult to only exclude those.
     28  * Also, regular testing of ICU is done with all modules on, therefore
     29  * not testing conversion for a custom configuration like this should be ok.
     30  */
     31 
     32 #include "unicode/ucnv.h"
     33 #include "unicode/unistr.h"
     34 #include "unicode/parsepos.h"
     35 #include "unicode/uniset.h"
     36 #include "unicode/ustring.h"
     37 #include "unicode/ures.h"
     38 #include "convtest.h"
     39 #include "unicode/tstdtmod.h"
     40 #include <string.h>
     41 #include <stdlib.h>
     42 
     43 #define LENGTHOF(array) (int32_t)(sizeof(array)/sizeof((array)[0]))
     44 
     45 enum {
     46     // characters used in test data for callbacks
     47     SUB_CB='?',
     48     SKIP_CB='0',
     49     STOP_CB='.',
     50     ESC_CB='&'
     51 };
     52 
     53 ConversionTest::ConversionTest() {
     54     UErrorCode errorCode=U_ZERO_ERROR;
     55     utf8Cnv=ucnv_open("UTF-8", &errorCode);
     56     ucnv_setToUCallBack(utf8Cnv, UCNV_TO_U_CALLBACK_STOP, NULL, NULL, NULL, &errorCode);
     57     if(U_FAILURE(errorCode)) {
     58         errln("unable to open UTF-8 converter");
     59     }
     60 }
     61 
     62 ConversionTest::~ConversionTest() {
     63     ucnv_close(utf8Cnv);
     64 }
     65 
     66 void
     67 ConversionTest::runIndexedTest(int32_t index, UBool exec, const char *&name, char * /*par*/) {
     68     if (exec) logln("TestSuite ConversionTest: ");
     69     switch (index) {
     70 #if !UCONFIG_NO_FILE_IO
     71         case 0: name="TestToUnicode"; if (exec) TestToUnicode(); break;
     72         case 1: name="TestFromUnicode"; if (exec) TestFromUnicode(); break;
     73         case 2: name="TestGetUnicodeSet"; if (exec) TestGetUnicodeSet(); break;
     74 #else
     75         case 0:
     76         case 1:
     77         case 2: name="skip"; break;
     78 #endif
     79         case 3: name="TestGetUnicodeSet2"; if (exec) TestGetUnicodeSet2(); break;
     80         default: name=""; break; //needed to end loop
     81     }
     82 }
     83 
     84 // test data interface ----------------------------------------------------- ***
     85 
     86 void
     87 ConversionTest::TestToUnicode() {
     88     ConversionCase cc;
     89     char charset[100], cbopt[4];
     90     const char *option;
     91     UnicodeString s, unicode;
     92     int32_t offsetsLength;
     93     UConverterToUCallback callback;
     94 
     95     TestDataModule *dataModule;
     96     TestData *testData;
     97     const DataMap *testCase;
     98     UErrorCode errorCode;
     99     int32_t i;
    100 
    101     errorCode=U_ZERO_ERROR;
    102     dataModule=TestDataModule::getTestDataModule("conversion", *this, errorCode);
    103     if(U_SUCCESS(errorCode)) {
    104         testData=dataModule->createTestData("toUnicode", errorCode);
    105         if(U_SUCCESS(errorCode)) {
    106             for(i=0; testData->nextCase(testCase, errorCode); ++i) {
    107                 if(U_FAILURE(errorCode)) {
    108                     errln("error retrieving conversion/toUnicode test case %d - %s",
    109                             i, u_errorName(errorCode));
    110                     errorCode=U_ZERO_ERROR;
    111                     continue;
    112                 }
    113 
    114                 cc.caseNr=i;
    115 
    116                 s=testCase->getString("charset", errorCode);
    117                 s.extract(0, 0x7fffffff, charset, sizeof(charset), "");
    118                 cc.charset=charset;
    119 
    120                 // BEGIN android-added
    121                 // To save space, Android does not build full ISO-2022 tables.
    122                 // We skip the TestGetKeywordValuesForLocale for counting available collations.
    123                 if (strlen(charset) >= 8 &&
    124                     strncmp(charset+4, "2022", 4) == 0) {
    125                     continue;
    126                 }
    127                 // END android-added
    128 
    129                 cc.bytes=testCase->getBinary(cc.bytesLength, "bytes", errorCode);
    130                 unicode=testCase->getString("unicode", errorCode);
    131                 cc.unicode=unicode.getBuffer();
    132                 cc.unicodeLength=unicode.length();
    133 
    134                 offsetsLength=0;
    135                 cc.offsets=testCase->getIntVector(offsetsLength, "offsets", errorCode);
    136                 if(offsetsLength==0) {
    137                     cc.offsets=NULL;
    138                 } else if(offsetsLength!=unicode.length()) {
    139                     errln("toUnicode[%d] unicode[%d] and offsets[%d] must have the same length",
    140                             i, unicode.length(), offsetsLength);
    141                     errorCode=U_ILLEGAL_ARGUMENT_ERROR;
    142                 }
    143 
    144                 cc.finalFlush= 0!=testCase->getInt28("flush", errorCode);
    145                 cc.fallbacks= 0!=testCase->getInt28("fallbacks", errorCode);
    146 
    147                 s=testCase->getString("errorCode", errorCode);
    148                 if(s==UNICODE_STRING("invalid", 7)) {
    149                     cc.outErrorCode=U_INVALID_CHAR_FOUND;
    150                 } else if(s==UNICODE_STRING("illegal", 7)) {
    151                     cc.outErrorCode=U_ILLEGAL_CHAR_FOUND;
    152                 } else if(s==UNICODE_STRING("truncated", 9)) {
    153                     cc.outErrorCode=U_TRUNCATED_CHAR_FOUND;
    154                 } else if(s==UNICODE_STRING("illesc", 6)) {
    155                     cc.outErrorCode=U_ILLEGAL_ESCAPE_SEQUENCE;
    156                 } else if(s==UNICODE_STRING("unsuppesc", 9)) {
    157                     cc.outErrorCode=U_UNSUPPORTED_ESCAPE_SEQUENCE;
    158                 } else {
    159                     cc.outErrorCode=U_ZERO_ERROR;
    160                 }
    161 
    162                 s=testCase->getString("callback", errorCode);
    163                 s.extract(0, 0x7fffffff, cbopt, sizeof(cbopt), "");
    164                 cc.cbopt=cbopt;
    165                 switch(cbopt[0]) {
    166                 case SUB_CB:
    167                     callback=UCNV_TO_U_CALLBACK_SUBSTITUTE;
    168                     break;
    169                 case SKIP_CB:
    170                     callback=UCNV_TO_U_CALLBACK_SKIP;
    171                     break;
    172                 case STOP_CB:
    173                     callback=UCNV_TO_U_CALLBACK_STOP;
    174                     break;
    175                 case ESC_CB:
    176                     callback=UCNV_TO_U_CALLBACK_ESCAPE;
    177                     break;
    178                 default:
    179                     callback=NULL;
    180                     break;
    181                 }
    182                 option=callback==NULL ? cbopt : cbopt+1;
    183                 if(*option==0) {
    184                     option=NULL;
    185                 }
    186 
    187                 cc.invalidChars=testCase->getBinary(cc.invalidLength, "invalidChars", errorCode);
    188 
    189                 if(U_FAILURE(errorCode)) {
    190                     errln("error parsing conversion/toUnicode test case %d - %s",
    191                             i, u_errorName(errorCode));
    192                     errorCode=U_ZERO_ERROR;
    193                 } else {
    194                     logln("TestToUnicode[%d] %s", i, charset);
    195                     ToUnicodeCase(cc, callback, option);
    196                 }
    197             }
    198             delete testData;
    199         }
    200         delete dataModule;
    201     }
    202     else {
    203         dataerrln("Could not load test conversion data");
    204     }
    205 }
    206 
    207 void
    208 ConversionTest::TestFromUnicode() {
    209     ConversionCase cc;
    210     char charset[100], cbopt[4];
    211     const char *option;
    212     UnicodeString s, unicode, invalidUChars;
    213     int32_t offsetsLength, index;
    214     UConverterFromUCallback callback;
    215 
    216     TestDataModule *dataModule;
    217     TestData *testData;
    218     const DataMap *testCase;
    219     const UChar *p;
    220     UErrorCode errorCode;
    221     int32_t i, length;
    222 
    223     errorCode=U_ZERO_ERROR;
    224     dataModule=TestDataModule::getTestDataModule("conversion", *this, errorCode);
    225     if(U_SUCCESS(errorCode)) {
    226         testData=dataModule->createTestData("fromUnicode", errorCode);
    227         if(U_SUCCESS(errorCode)) {
    228             for(i=0; testData->nextCase(testCase, errorCode); ++i) {
    229                 if(U_FAILURE(errorCode)) {
    230                     errln("error retrieving conversion/fromUnicode test case %d - %s",
    231                             i, u_errorName(errorCode));
    232                     errorCode=U_ZERO_ERROR;
    233                     continue;
    234                 }
    235 
    236                 cc.caseNr=i;
    237 
    238                 s=testCase->getString("charset", errorCode);
    239                 s.extract(0, 0x7fffffff, charset, sizeof(charset), "");
    240                 cc.charset=charset;
    241 
    242                 // BEGIN android-added
    243                 // To save space, Android does not build full ISO-2022 tables.
    244                 // We skip the TestGetKeywordValuesForLocale for counting available collations.
    245                 if (strlen(charset) >= 8 &&
    246                     strncmp(charset+4, "2022", 4) == 0) {
    247                     continue;
    248                 }
    249                 // END android-added
    250 
    251                 unicode=testCase->getString("unicode", errorCode);
    252                 cc.unicode=unicode.getBuffer();
    253                 cc.unicodeLength=unicode.length();
    254                 cc.bytes=testCase->getBinary(cc.bytesLength, "bytes", errorCode);
    255 
    256                 offsetsLength=0;
    257                 cc.offsets=testCase->getIntVector(offsetsLength, "offsets", errorCode);
    258                 if(offsetsLength==0) {
    259                     cc.offsets=NULL;
    260                 } else if(offsetsLength!=cc.bytesLength) {
    261                     errln("fromUnicode[%d] bytes[%d] and offsets[%d] must have the same length",
    262                             i, cc.bytesLength, offsetsLength);
    263                     errorCode=U_ILLEGAL_ARGUMENT_ERROR;
    264                 }
    265 
    266                 cc.finalFlush= 0!=testCase->getInt28("flush", errorCode);
    267                 cc.fallbacks= 0!=testCase->getInt28("fallbacks", errorCode);
    268 
    269                 s=testCase->getString("errorCode", errorCode);
    270                 if(s==UNICODE_STRING("invalid", 7)) {
    271                     cc.outErrorCode=U_INVALID_CHAR_FOUND;
    272                 } else if(s==UNICODE_STRING("illegal", 7)) {
    273                     cc.outErrorCode=U_ILLEGAL_CHAR_FOUND;
    274                 } else if(s==UNICODE_STRING("truncated", 9)) {
    275                     cc.outErrorCode=U_TRUNCATED_CHAR_FOUND;
    276                 } else {
    277                     cc.outErrorCode=U_ZERO_ERROR;
    278                 }
    279 
    280                 s=testCase->getString("callback", errorCode);
    281                 cc.setSub=0; // default: no subchar
    282 
    283                 if((index=s.indexOf((UChar)0))>0) {
    284                     // read NUL-separated subchar first, if any
    285                     // copy the subchar from Latin-1 characters
    286                     // start after the NUL
    287                     p=s.getTerminatedBuffer();
    288                     length=index+1;
    289                     p+=length;
    290                     length=s.length()-length;
    291                     if(length<=0 || length>=(int32_t)sizeof(cc.subchar)) {
    292                         errorCode=U_ILLEGAL_ARGUMENT_ERROR;
    293                     } else {
    294                         int32_t j;
    295 
    296                         for(j=0; j<length; ++j) {
    297                             cc.subchar[j]=(char)p[j];
    298                         }
    299                         // NUL-terminate the subchar
    300                         cc.subchar[j]=0;
    301                         cc.setSub=1;
    302                     }
    303 
    304                     // remove the NUL and subchar from s
    305                     s.truncate(index);
    306                 } else if((index=s.indexOf((UChar)0x3d))>0) /* '=' */ {
    307                     // read a substitution string, separated by an equal sign
    308                     p=s.getBuffer()+index+1;
    309                     length=s.length()-(index+1);
    310                     if(length<0 || length>=LENGTHOF(cc.subString)) {
    311                         errorCode=U_ILLEGAL_ARGUMENT_ERROR;
    312                     } else {
    313                         u_memcpy(cc.subString, p, length);
    314                         // NUL-terminate the subString
    315                         cc.subString[length]=0;
    316                         cc.setSub=-1;
    317                     }
    318 
    319                     // remove the equal sign and subString from s
    320                     s.truncate(index);
    321                 }
    322 
    323                 s.extract(0, 0x7fffffff, cbopt, sizeof(cbopt), "");
    324                 cc.cbopt=cbopt;
    325                 switch(cbopt[0]) {
    326                 case SUB_CB:
    327                     callback=UCNV_FROM_U_CALLBACK_SUBSTITUTE;
    328                     break;
    329                 case SKIP_CB:
    330                     callback=UCNV_FROM_U_CALLBACK_SKIP;
    331                     break;
    332                 case STOP_CB:
    333                     callback=UCNV_FROM_U_CALLBACK_STOP;
    334                     break;
    335                 case ESC_CB:
    336                     callback=UCNV_FROM_U_CALLBACK_ESCAPE;
    337                     break;
    338                 default:
    339                     callback=NULL;
    340                     break;
    341                 }
    342                 option=callback==NULL ? cbopt : cbopt+1;
    343                 if(*option==0) {
    344                     option=NULL;
    345                 }
    346 
    347                 invalidUChars=testCase->getString("invalidUChars", errorCode);
    348                 cc.invalidUChars=invalidUChars.getBuffer();
    349                 cc.invalidLength=invalidUChars.length();
    350 
    351                 if(U_FAILURE(errorCode)) {
    352                     errln("error parsing conversion/fromUnicode test case %d - %s",
    353                             i, u_errorName(errorCode));
    354                     errorCode=U_ZERO_ERROR;
    355                 } else {
    356                     logln("TestFromUnicode[%d] %s", i, charset);
    357                     FromUnicodeCase(cc, callback, option);
    358                 }
    359             }
    360             delete testData;
    361         }
    362         delete dataModule;
    363     }
    364     else {
    365         dataerrln("Could not load test conversion data");
    366     }
    367 }
    368 
    369 static const UChar ellipsis[]={ 0x2e, 0x2e, 0x2e };
    370 
    371 void
    372 ConversionTest::TestGetUnicodeSet() {
    373     char charset[100];
    374     UnicodeString s, map, mapnot;
    375     int32_t which;
    376 
    377     ParsePosition pos;
    378     UnicodeSet cnvSet, mapSet, mapnotSet, diffSet;
    379     UnicodeSet *cnvSetPtr = &cnvSet;
    380     LocalUConverterPointer cnv;
    381 
    382     TestDataModule *dataModule;
    383     TestData *testData;
    384     const DataMap *testCase;
    385     UErrorCode errorCode;
    386     int32_t i;
    387 
    388     errorCode=U_ZERO_ERROR;
    389     dataModule=TestDataModule::getTestDataModule("conversion", *this, errorCode);
    390     if(U_SUCCESS(errorCode)) {
    391         testData=dataModule->createTestData("getUnicodeSet", errorCode);
    392         if(U_SUCCESS(errorCode)) {
    393             for(i=0; testData->nextCase(testCase, errorCode); ++i) {
    394                 if(U_FAILURE(errorCode)) {
    395                     errln("error retrieving conversion/getUnicodeSet test case %d - %s",
    396                             i, u_errorName(errorCode));
    397                     errorCode=U_ZERO_ERROR;
    398                     continue;
    399                 }
    400 
    401                 s=testCase->getString("charset", errorCode);
    402                 s.extract(0, 0x7fffffff, charset, sizeof(charset), "");
    403 
    404                 // BEGIN android-added
    405                 // To save space, Android does not build full ISO-2022 tables.
    406                 // We skip the TestGetKeywordValuesForLocale for counting available collations.
    407                 if (strlen(charset) >= 8 &&
    408                     strncmp(charset+4, "2022", 4) == 0) {
    409                     continue;
    410                 }
    411                 // END android-added
    412 
    413                 map=testCase->getString("map", errorCode);
    414                 mapnot=testCase->getString("mapnot", errorCode);
    415 
    416                 which=testCase->getInt28("which", errorCode);
    417 
    418                 if(U_FAILURE(errorCode)) {
    419                     errln("error parsing conversion/getUnicodeSet test case %d - %s",
    420                             i, u_errorName(errorCode));
    421                     errorCode=U_ZERO_ERROR;
    422                     continue;
    423                 }
    424 
    425                 // test this test case
    426                 mapSet.clear();
    427                 mapnotSet.clear();
    428 
    429                 pos.setIndex(0);
    430                 mapSet.applyPattern(map, pos, 0, NULL, errorCode);
    431                 if(U_FAILURE(errorCode) || pos.getIndex()!=map.length()) {
    432                     errln("error creating the map set for conversion/getUnicodeSet test case %d - %s\n"
    433                           "    error index %d  index %d  U+%04x",
    434                             i, u_errorName(errorCode), pos.getErrorIndex(), pos.getIndex(), map.char32At(pos.getIndex()));
    435                     errorCode=U_ZERO_ERROR;
    436                     continue;
    437                 }
    438 
    439                 pos.setIndex(0);
    440                 mapnotSet.applyPattern(mapnot, pos, 0, NULL, errorCode);
    441                 if(U_FAILURE(errorCode) || pos.getIndex()!=mapnot.length()) {
    442                     errln("error creating the mapnot set for conversion/getUnicodeSet test case %d - %s\n"
    443                           "    error index %d  index %d  U+%04x",
    444                             i, u_errorName(errorCode), pos.getErrorIndex(), pos.getIndex(), mapnot.char32At(pos.getIndex()));
    445                     errorCode=U_ZERO_ERROR;
    446                     continue;
    447                 }
    448 
    449                 logln("TestGetUnicodeSet[%d] %s", i, charset);
    450 
    451                 cnv.adoptInstead(cnv_open(charset, errorCode));
    452                 if(U_FAILURE(errorCode)) {
    453                     errcheckln(errorCode, "error opening \"%s\" for conversion/getUnicodeSet test case %d - %s",
    454                             charset, i, u_errorName(errorCode));
    455                     errorCode=U_ZERO_ERROR;
    456                     continue;
    457                 }
    458 
    459                 ucnv_getUnicodeSet(cnv.getAlias(), cnvSetPtr->toUSet(), (UConverterUnicodeSet)which, &errorCode);
    460 
    461                 if(U_FAILURE(errorCode)) {
    462                     errln("error in ucnv_getUnicodeSet(\"%s\") for conversion/getUnicodeSet test case %d - %s",
    463                             charset, i, u_errorName(errorCode));
    464                     errorCode=U_ZERO_ERROR;
    465                     continue;
    466                 }
    467 
    468                 // are there items that must be in cnvSet but are not?
    469                 (diffSet=mapSet).removeAll(cnvSet);
    470                 if(!diffSet.isEmpty()) {
    471                     diffSet.toPattern(s, TRUE);
    472                     if(s.length()>100) {
    473                         s.replace(100, 0x7fffffff, ellipsis, LENGTHOF(ellipsis));
    474                     }
    475                     errln("error: ucnv_getUnicodeSet(\"%s\") is missing items - conversion/getUnicodeSet test case %d",
    476                             charset, i);
    477                     errln(s);
    478                 }
    479 
    480                 // are there items that must not be in cnvSet but are?
    481                 (diffSet=mapnotSet).retainAll(cnvSet);
    482                 if(!diffSet.isEmpty()) {
    483                     diffSet.toPattern(s, TRUE);
    484                     if(s.length()>100) {
    485                         s.replace(100, 0x7fffffff, ellipsis, LENGTHOF(ellipsis));
    486                     }
    487                     errln("error: ucnv_getUnicodeSet(\"%s\") contains unexpected items - conversion/getUnicodeSet test case %d",
    488                             charset, i);
    489                     errln(s);
    490                 }
    491             }
    492             delete testData;
    493         }
    494         delete dataModule;
    495     }
    496     else {
    497         dataerrln("Could not load test conversion data");
    498     }
    499 }
    500 
    501 U_CDECL_BEGIN
    502 static void U_CALLCONV
    503 getUnicodeSetCallback(const void *context,
    504                       UConverterFromUnicodeArgs * /*fromUArgs*/,
    505                       const UChar* /*codeUnits*/,
    506                       int32_t /*length*/,
    507                       UChar32 codePoint,
    508                       UConverterCallbackReason reason,
    509                       UErrorCode *pErrorCode) {
    510     if(reason<=UCNV_IRREGULAR) {
    511         ((UnicodeSet *)context)->remove(codePoint);  // the converter cannot convert this code point
    512         *pErrorCode=U_ZERO_ERROR;                    // skip
    513     }  // else ignore the reset, close and clone calls.
    514 }
    515 U_CDECL_END
    516 
    517 // Compare ucnv_getUnicodeSet() with the set of characters that can be converted.
    518 void
    519 ConversionTest::TestGetUnicodeSet2() {
    520     // Build a string with all code points.
    521     UChar32 cpLimit;
    522     int32_t s0Length;
    523     if(quick) {
    524         cpLimit=s0Length=0x10000;  // BMP only
    525     } else {
    526         cpLimit=0x110000;
    527         s0Length=0x10000+0x200000;  // BMP + surrogate pairs
    528     }
    529     UChar *s0=new UChar[s0Length];
    530     if(s0==NULL) {
    531         return;
    532     }
    533     UChar *s=s0;
    534     UChar32 c;
    535     UChar c2;
    536     // low BMP
    537     for(c=0; c<=0xd7ff; ++c) {
    538         *s++=(UChar)c;
    539     }
    540     // trail surrogates
    541     for(c=0xdc00; c<=0xdfff; ++c) {
    542         *s++=(UChar)c;
    543     }
    544     // lead surrogates
    545     // (after trails so that there is not even one surrogate pair in between)
    546     for(c=0xd800; c<=0xdbff; ++c) {
    547         *s++=(UChar)c;
    548     }
    549     // high BMP
    550     for(c=0xe000; c<=0xffff; ++c) {
    551         *s++=(UChar)c;
    552     }
    553     // supplementary code points = surrogate pairs
    554     if(cpLimit==0x110000) {
    555         for(c=0xd800; c<=0xdbff; ++c) {
    556             for(c2=0xdc00; c2<=0xdfff; ++c2) {
    557                 *s++=(UChar)c;
    558                 *s++=c2;
    559             }
    560         }
    561     }
    562 
    563     static const char *const cnvNames[]={
    564         "UTF-8",
    565         "UTF-7",
    566         "UTF-16",
    567         "US-ASCII",
    568         "ISO-8859-1",
    569         "windows-1252",
    570         "Shift-JIS",
    571         "ibm-1390",  // EBCDIC_STATEFUL table
    572         "ibm-16684",  // DBCS-only extension table based on EBCDIC_STATEFUL table
    573         "HZ",
    574         "ISO-2022-JP",
    575         "JIS7",
    576         "ISO-2022-CN",
    577         "ISO-2022-CN-EXT",
    578         "LMBCS"
    579     };
    580     LocalUConverterPointer cnv;
    581     char buffer[1024];
    582     int32_t i;
    583     for(i=0; i<LENGTHOF(cnvNames); ++i) {
    584         UErrorCode errorCode=U_ZERO_ERROR;
    585         cnv.adoptInstead(cnv_open(cnvNames[i], errorCode));
    586         if(U_FAILURE(errorCode)) {
    587             errcheckln(errorCode, "failed to open converter %s - %s", cnvNames[i], u_errorName(errorCode));
    588             continue;
    589         }
    590         UnicodeSet expected;
    591         ucnv_setFromUCallBack(cnv.getAlias(), getUnicodeSetCallback, &expected, NULL, NULL, &errorCode);
    592         if(U_FAILURE(errorCode)) {
    593             errln("failed to set the callback on converter %s - %s", cnvNames[i], u_errorName(errorCode));
    594             continue;
    595         }
    596         UConverterUnicodeSet which;
    597         for(which=UCNV_ROUNDTRIP_SET; which<UCNV_SET_COUNT; which=(UConverterUnicodeSet)((int)which+1)) {
    598             if(which==UCNV_ROUNDTRIP_AND_FALLBACK_SET) {
    599                 ucnv_setFallback(cnv.getAlias(), TRUE);
    600             }
    601             expected.add(0, cpLimit-1);
    602             s=s0;
    603             UBool flush;
    604             do {
    605                 char *t=buffer;
    606                 flush=(UBool)(s==s0+s0Length);
    607                 ucnv_fromUnicode(cnv.getAlias(), &t, buffer+sizeof(buffer), (const UChar **)&s, s0+s0Length, NULL, flush, &errorCode);
    608                 if(U_FAILURE(errorCode)) {
    609                     if(errorCode==U_BUFFER_OVERFLOW_ERROR) {
    610                         errorCode=U_ZERO_ERROR;
    611                         continue;
    612                     } else {
    613                         break;  // unexpected error, should not occur
    614                     }
    615                 }
    616             } while(!flush);
    617             UnicodeSet set;
    618             ucnv_getUnicodeSet(cnv.getAlias(), set.toUSet(), which, &errorCode);
    619             if(cpLimit<0x110000) {
    620                 set.remove(cpLimit, 0x10ffff);
    621             }
    622             if(which==UCNV_ROUNDTRIP_SET) {
    623                 // ignore PUA code points because they will be converted even if they
    624                 // are fallbacks and when other fallbacks are turned off,
    625                 // but ucnv_getUnicodeSet(UCNV_ROUNDTRIP_SET) delivers true roundtrips
    626                 expected.remove(0xe000, 0xf8ff);
    627                 expected.remove(0xf0000, 0xffffd);
    628                 expected.remove(0x100000, 0x10fffd);
    629                 set.remove(0xe000, 0xf8ff);
    630                 set.remove(0xf0000, 0xffffd);
    631                 set.remove(0x100000, 0x10fffd);
    632             }
    633             if(set!=expected) {
    634                 // First try to see if we have different sets because ucnv_getUnicodeSet()
    635                 // added strings: The above conversion method does not tell us what strings might be convertible.
    636                 // Remove strings from the set and compare again.
    637                 // Unfortunately, there are no good, direct set methods for finding out whether there are strings
    638                 // in the set, nor for enumerating or removing just them.
    639                 // Intersect all code points with the set. The intersection will not contain strings.
    640                 UnicodeSet temp(0, 0x10ffff);
    641                 temp.retainAll(set);
    642                 set=temp;
    643             }
    644             if(set!=expected) {
    645                 UnicodeSet diffSet;
    646                 UnicodeString out;
    647 
    648                 // are there items that must be in the set but are not?
    649                 (diffSet=expected).removeAll(set);
    650                 if(!diffSet.isEmpty()) {
    651                     diffSet.toPattern(out, TRUE);
    652                     if(out.length()>100) {
    653                         out.replace(100, 0x7fffffff, ellipsis, LENGTHOF(ellipsis));
    654                     }
    655                     errln("error: ucnv_getUnicodeSet(\"%s\") is missing items - which set: %d",
    656                             cnvNames[i], which);
    657                     errln(out);
    658                 }
    659 
    660                 // are there items that must not be in the set but are?
    661                 (diffSet=set).removeAll(expected);
    662                 if(!diffSet.isEmpty()) {
    663                     diffSet.toPattern(out, TRUE);
    664                     if(out.length()>100) {
    665                         out.replace(100, 0x7fffffff, ellipsis, LENGTHOF(ellipsis));
    666                     }
    667                     errln("error: ucnv_getUnicodeSet(\"%s\") contains unexpected items - which set: %d",
    668                             cnvNames[i], which);
    669                     errln(out);
    670                 }
    671             }
    672         }
    673     }
    674 
    675     delete [] s0;
    676 }
    677 
    678 // open testdata or ICU data converter ------------------------------------- ***
    679 
    680 UConverter *
    681 ConversionTest::cnv_open(const char *name, UErrorCode &errorCode) {
    682     if(name!=NULL && *name=='*') {
    683         /* loadTestData(): set the data directory */
    684         return ucnv_openPackage(loadTestData(errorCode), name+1, &errorCode);
    685     } else if(name!=NULL && *name=='+') {
    686         return ucnv_open((name+1), &errorCode);
    687     } else {
    688         return ucnv_open(name, &errorCode);
    689     }
    690 }
    691 
    692 // output helpers ---------------------------------------------------------- ***
    693 
    694 static inline char
    695 hexDigit(uint8_t digit) {
    696     return digit<=9 ? (char)('0'+digit) : (char)('a'-10+digit);
    697 }
    698 
    699 static char *
    700 printBytes(const uint8_t *bytes, int32_t length, char *out) {
    701     uint8_t b;
    702 
    703     if(length>0) {
    704         b=*bytes++;
    705         --length;
    706         *out++=hexDigit((uint8_t)(b>>4));
    707         *out++=hexDigit((uint8_t)(b&0xf));
    708     }
    709 
    710     while(length>0) {
    711         b=*bytes++;
    712         --length;
    713         *out++=' ';
    714         *out++=hexDigit((uint8_t)(b>>4));
    715         *out++=hexDigit((uint8_t)(b&0xf));
    716     }
    717     *out++=0;
    718     return out;
    719 }
    720 
    721 static char *
    722 printUnicode(const UChar *unicode, int32_t length, char *out) {
    723     UChar32 c;
    724     int32_t i;
    725 
    726     for(i=0; i<length;) {
    727         if(i>0) {
    728             *out++=' ';
    729         }
    730         U16_NEXT(unicode, i, length, c);
    731         // write 4..6 digits
    732         if(c>=0x100000) {
    733             *out++='1';
    734         }
    735         if(c>=0x10000) {
    736             *out++=hexDigit((uint8_t)((c>>16)&0xf));
    737         }
    738         *out++=hexDigit((uint8_t)((c>>12)&0xf));
    739         *out++=hexDigit((uint8_t)((c>>8)&0xf));
    740         *out++=hexDigit((uint8_t)((c>>4)&0xf));
    741         *out++=hexDigit((uint8_t)(c&0xf));
    742     }
    743     *out++=0;
    744     return out;
    745 }
    746 
    747 static char *
    748 printOffsets(const int32_t *offsets, int32_t length, char *out) {
    749     int32_t i, o, d;
    750 
    751     if(offsets==NULL) {
    752         length=0;
    753     }
    754 
    755     for(i=0; i<length; ++i) {
    756         if(i>0) {
    757             *out++=' ';
    758         }
    759         o=offsets[i];
    760 
    761         // print all offsets with 2 characters each (-x, -9..99, xx)
    762         if(o<-9) {
    763             *out++='-';
    764             *out++='x';
    765         } else if(o<0) {
    766             *out++='-';
    767             *out++=(char)('0'-o);
    768         } else if(o<=99) {
    769             *out++=(d=o/10)==0 ? ' ' : (char)('0'+d);
    770             *out++=(char)('0'+o%10);
    771         } else /* o>99 */ {
    772             *out++='x';
    773             *out++='x';
    774         }
    775     }
    776     *out++=0;
    777     return out;
    778 }
    779 
    780 // toUnicode test worker functions ----------------------------------------- ***
    781 
    782 static int32_t
    783 stepToUnicode(ConversionCase &cc, UConverter *cnv,
    784               UChar *result, int32_t resultCapacity,
    785               int32_t *resultOffsets, /* also resultCapacity */
    786               int32_t step,
    787               UErrorCode *pErrorCode) {
    788     const char *source, *sourceLimit, *bytesLimit;
    789     UChar *target, *targetLimit, *resultLimit;
    790     UBool flush;
    791 
    792     source=(const char *)cc.bytes;
    793     target=result;
    794     bytesLimit=source+cc.bytesLength;
    795     resultLimit=result+resultCapacity;
    796 
    797     if(step>=0) {
    798         // call ucnv_toUnicode() with in/out buffers no larger than (step) at a time
    799         // move only one buffer (in vs. out) at a time to be extra mean
    800         // step==0 performs bulk conversion and generates offsets
    801 
    802         // initialize the partial limits for the loop
    803         if(step==0) {
    804             // use the entire buffers
    805             sourceLimit=bytesLimit;
    806             targetLimit=resultLimit;
    807             flush=cc.finalFlush;
    808         } else {
    809             // start with empty partial buffers
    810             sourceLimit=source;
    811             targetLimit=target;
    812             flush=FALSE;
    813 
    814             // output offsets only for bulk conversion
    815             resultOffsets=NULL;
    816         }
    817 
    818         for(;;) {
    819             // resetting the opposite conversion direction must not affect this one
    820             ucnv_resetFromUnicode(cnv);
    821 
    822             // convert
    823             ucnv_toUnicode(cnv,
    824                 &target, targetLimit,
    825                 &source, sourceLimit,
    826                 resultOffsets,
    827                 flush, pErrorCode);
    828 
    829             // check pointers and errors
    830             if(source>sourceLimit || target>targetLimit) {
    831                 *pErrorCode=U_INTERNAL_PROGRAM_ERROR;
    832                 break;
    833             } else if(*pErrorCode==U_BUFFER_OVERFLOW_ERROR) {
    834                 if(target!=targetLimit) {
    835                     // buffer overflow must only be set when the target is filled
    836                     *pErrorCode=U_INTERNAL_PROGRAM_ERROR;
    837                     break;
    838                 } else if(targetLimit==resultLimit) {
    839                     // not just a partial overflow
    840                     break;
    841                 }
    842 
    843                 // the partial target is filled, set a new limit, reset the error and continue
    844                 targetLimit=(resultLimit-target)>=step ? target+step : resultLimit;
    845                 *pErrorCode=U_ZERO_ERROR;
    846             } else if(U_FAILURE(*pErrorCode)) {
    847                 // some other error occurred, done
    848                 break;
    849             } else {
    850                 if(source!=sourceLimit) {
    851                     // when no error occurs, then the input must be consumed
    852                     *pErrorCode=U_INTERNAL_PROGRAM_ERROR;
    853                     break;
    854                 }
    855 
    856                 if(sourceLimit==bytesLimit) {
    857                     // we are done
    858                     break;
    859                 }
    860 
    861                 // the partial conversion succeeded, set a new limit and continue
    862                 sourceLimit=(bytesLimit-source)>=step ? source+step : bytesLimit;
    863                 flush=(UBool)(cc.finalFlush && sourceLimit==bytesLimit);
    864             }
    865         }
    866     } else /* step<0 */ {
    867         /*
    868          * step==-1: call only ucnv_getNextUChar()
    869          * otherwise alternate between ucnv_toUnicode() and ucnv_getNextUChar()
    870          *   if step==-2 or -3, then give ucnv_toUnicode() the whole remaining input,
    871          *   else give it at most (-step-2)/2 bytes
    872          */
    873         UChar32 c;
    874 
    875         // end the loop by getting an index out of bounds error
    876         for(;;) {
    877             // resetting the opposite conversion direction must not affect this one
    878             ucnv_resetFromUnicode(cnv);
    879 
    880             // convert
    881             if((step&1)!=0 /* odd: -1, -3, -5, ... */) {
    882                 sourceLimit=source; // use sourceLimit not as a real limit
    883                                     // but to remember the pre-getNextUChar source pointer
    884                 c=ucnv_getNextUChar(cnv, &source, bytesLimit, pErrorCode);
    885 
    886                 // check pointers and errors
    887                 if(*pErrorCode==U_INDEX_OUTOFBOUNDS_ERROR) {
    888                     if(source!=bytesLimit) {
    889                         *pErrorCode=U_INTERNAL_PROGRAM_ERROR;
    890                     } else {
    891                         *pErrorCode=U_ZERO_ERROR;
    892                     }
    893                     break;
    894                 } else if(U_FAILURE(*pErrorCode)) {
    895                     break;
    896                 }
    897                 // source may not move if c is from previous overflow
    898 
    899                 if(target==resultLimit) {
    900                     *pErrorCode=U_BUFFER_OVERFLOW_ERROR;
    901                     break;
    902                 }
    903                 if(c<=0xffff) {
    904                     *target++=(UChar)c;
    905                 } else {
    906                     *target++=U16_LEAD(c);
    907                     if(target==resultLimit) {
    908                         *pErrorCode=U_BUFFER_OVERFLOW_ERROR;
    909                         break;
    910                     }
    911                     *target++=U16_TRAIL(c);
    912                 }
    913 
    914                 // alternate between -n-1 and -n but leave -1 alone
    915                 if(step<-1) {
    916                     ++step;
    917                 }
    918             } else /* step is even */ {
    919                 // allow only one UChar output
    920                 targetLimit=target<resultLimit ? target+1 : resultLimit;
    921 
    922                 // as with ucnv_getNextUChar(), we always flush (if we go to bytesLimit)
    923                 // and never output offsets
    924                 if(step==-2) {
    925                     sourceLimit=bytesLimit;
    926                 } else {
    927                     sourceLimit=source+(-step-2)/2;
    928                     if(sourceLimit>bytesLimit) {
    929                         sourceLimit=bytesLimit;
    930                     }
    931                 }
    932 
    933                 ucnv_toUnicode(cnv,
    934                     &target, targetLimit,
    935                     &source, sourceLimit,
    936                     NULL, (UBool)(sourceLimit==bytesLimit), pErrorCode);
    937 
    938                 // check pointers and errors
    939                 if(*pErrorCode==U_BUFFER_OVERFLOW_ERROR) {
    940                     if(target!=targetLimit) {
    941                         // buffer overflow must only be set when the target is filled
    942                         *pErrorCode=U_INTERNAL_PROGRAM_ERROR;
    943                         break;
    944                     } else if(targetLimit==resultLimit) {
    945                         // not just a partial overflow
    946                         break;
    947                     }
    948 
    949                     // the partial target is filled, set a new limit and continue
    950                     *pErrorCode=U_ZERO_ERROR;
    951                 } else if(U_FAILURE(*pErrorCode)) {
    952                     // some other error occurred, done
    953                     break;
    954                 } else {
    955                     if(source!=sourceLimit) {
    956                         // when no error occurs, then the input must be consumed
    957                         *pErrorCode=U_INTERNAL_PROGRAM_ERROR;
    958                         break;
    959                     }
    960 
    961                     // we are done (flush==TRUE) but we continue, to get the index out of bounds error above
    962                 }
    963 
    964                 --step;
    965             }
    966         }
    967     }
    968 
    969     return (int32_t)(target-result);
    970 }
    971 
    972 UBool
    973 ConversionTest::ToUnicodeCase(ConversionCase &cc, UConverterToUCallback callback, const char *option) {
    974     // open the converter
    975     IcuTestErrorCode errorCode(*this, "ToUnicodeCase");
    976     LocalUConverterPointer cnv(cnv_open(cc.charset, errorCode));
    977     if(errorCode.isFailure()) {
    978         errcheckln(errorCode, "toUnicode[%d](%s cb=\"%s\" fb=%d flush=%d) ucnv_open() failed - %s",
    979                 cc.caseNr, cc.charset, cc.cbopt, cc.fallbacks, cc.finalFlush, errorCode.errorName());
    980         errorCode.reset();
    981         return FALSE;
    982     }
    983 
    984     // set the callback
    985     if(callback!=NULL) {
    986         ucnv_setToUCallBack(cnv.getAlias(), callback, option, NULL, NULL, errorCode);
    987         if(U_FAILURE(errorCode)) {
    988             errln("toUnicode[%d](%s cb=\"%s\" fb=%d flush=%d) ucnv_setToUCallBack() failed - %s",
    989                     cc.caseNr, cc.charset, cc.cbopt, cc.fallbacks, cc.finalFlush, u_errorName(errorCode));
    990             return FALSE;
    991         }
    992     }
    993 
    994     int32_t resultOffsets[256];
    995     UChar result[256];
    996     int32_t resultLength;
    997     UBool ok;
    998 
    999     static const struct {
   1000         int32_t step;
   1001         const char *name;
   1002     } steps[]={
   1003         { 0, "bulk" }, // must be first for offsets to be checked
   1004         { 1, "step=1" },
   1005         { 3, "step=3" },
   1006         { 7, "step=7" },
   1007         { -1, "getNext" },
   1008         { -2, "toU(bulk)+getNext" },
   1009         { -3, "getNext+toU(bulk)" },
   1010         { -4, "toU(1)+getNext" },
   1011         { -5, "getNext+toU(1)" },
   1012         { -12, "toU(5)+getNext" },
   1013         { -13, "getNext+toU(5)" },
   1014     };
   1015     int32_t i, step;
   1016 
   1017     ok=TRUE;
   1018     for(i=0; i<LENGTHOF(steps) && ok; ++i) {
   1019         step=steps[i].step;
   1020         if(step<0 && !cc.finalFlush) {
   1021             // skip ucnv_getNextUChar() if !finalFlush because
   1022             // ucnv_getNextUChar() always implies flush
   1023             continue;
   1024         }
   1025         if(step!=0) {
   1026             // bulk test is first, then offsets are not checked any more
   1027             cc.offsets=NULL;
   1028         }
   1029         else {
   1030             memset(resultOffsets, -1, LENGTHOF(resultOffsets));
   1031         }
   1032         memset(result, -1, LENGTHOF(result));
   1033         errorCode.reset();
   1034         resultLength=stepToUnicode(cc, cnv.getAlias(),
   1035                                 result, LENGTHOF(result),
   1036                                 step==0 ? resultOffsets : NULL,
   1037                                 step, errorCode);
   1038         ok=checkToUnicode(
   1039                 cc, cnv.getAlias(), steps[i].name,
   1040                 result, resultLength,
   1041                 cc.offsets!=NULL ? resultOffsets : NULL,
   1042                 errorCode);
   1043         if(errorCode.isFailure() || !cc.finalFlush) {
   1044             // reset if an error occurred or we did not flush
   1045             // otherwise do nothing to make sure that flushing resets
   1046             ucnv_resetToUnicode(cnv.getAlias());
   1047         }
   1048         if (cc.offsets != NULL && resultOffsets[resultLength] != -1) {
   1049             errln("toUnicode[%d](%s) Conversion wrote too much to offsets at index %d",
   1050                 cc.caseNr, cc.charset, resultLength);
   1051         }
   1052         if (result[resultLength] != (UChar)-1) {
   1053             errln("toUnicode[%d](%s) Conversion wrote too much to result at index %d",
   1054                 cc.caseNr, cc.charset, resultLength);
   1055         }
   1056     }
   1057 
   1058     // not a real loop, just a convenience for breaking out of the block
   1059     while(ok && cc.finalFlush) {
   1060         // test ucnv_toUChars()
   1061         memset(result, 0, sizeof(result));
   1062 
   1063         errorCode.reset();
   1064         resultLength=ucnv_toUChars(cnv.getAlias(),
   1065                         result, LENGTHOF(result),
   1066                         (const char *)cc.bytes, cc.bytesLength,
   1067                         errorCode);
   1068         ok=checkToUnicode(
   1069                 cc, cnv.getAlias(), "toUChars",
   1070                 result, resultLength,
   1071                 NULL,
   1072                 errorCode);
   1073         if(!ok) {
   1074             break;
   1075         }
   1076 
   1077         // test preflighting
   1078         // keep the correct result for simple checking
   1079         errorCode.reset();
   1080         resultLength=ucnv_toUChars(cnv.getAlias(),
   1081                         NULL, 0,
   1082                         (const char *)cc.bytes, cc.bytesLength,
   1083                         errorCode);
   1084         if(errorCode.get()==U_STRING_NOT_TERMINATED_WARNING || errorCode.get()==U_BUFFER_OVERFLOW_ERROR) {
   1085             errorCode.reset();
   1086         }
   1087         ok=checkToUnicode(
   1088                 cc, cnv.getAlias(), "preflight toUChars",
   1089                 result, resultLength,
   1090                 NULL,
   1091                 errorCode);
   1092         break;
   1093     }
   1094 
   1095     errorCode.reset();  // all errors have already been reported
   1096     return ok;
   1097 }
   1098 
   1099 UBool
   1100 ConversionTest::checkToUnicode(ConversionCase &cc, UConverter *cnv, const char *name,
   1101                                const UChar *result, int32_t resultLength,
   1102                                const int32_t *resultOffsets,
   1103                                UErrorCode resultErrorCode) {
   1104     char resultInvalidChars[8];
   1105     int8_t resultInvalidLength;
   1106     UErrorCode errorCode;
   1107 
   1108     const char *msg;
   1109 
   1110     // reset the message; NULL will mean "ok"
   1111     msg=NULL;
   1112 
   1113     errorCode=U_ZERO_ERROR;
   1114     resultInvalidLength=sizeof(resultInvalidChars);
   1115     ucnv_getInvalidChars(cnv, resultInvalidChars, &resultInvalidLength, &errorCode);
   1116     if(U_FAILURE(errorCode)) {
   1117         errln("toUnicode[%d](%s cb=\"%s\" fb=%d flush=%d %s) ucnv_getInvalidChars() failed - %s",
   1118                 cc.caseNr, cc.charset, cc.cbopt, cc.fallbacks, cc.finalFlush, name, u_errorName(errorCode));
   1119         return FALSE;
   1120     }
   1121 
   1122     // check everything that might have gone wrong
   1123     if(cc.unicodeLength!=resultLength) {
   1124         msg="wrong result length";
   1125     } else if(0!=u_memcmp(cc.unicode, result, cc.unicodeLength)) {
   1126         msg="wrong result string";
   1127     } else if(cc.offsets!=NULL && 0!=memcmp(cc.offsets, resultOffsets, cc.unicodeLength*sizeof(*cc.offsets))) {
   1128         msg="wrong offsets";
   1129     } else if(cc.outErrorCode!=resultErrorCode) {
   1130         msg="wrong error code";
   1131     } else if(cc.invalidLength!=resultInvalidLength) {
   1132         msg="wrong length of last invalid input";
   1133     } else if(0!=memcmp(cc.invalidChars, resultInvalidChars, cc.invalidLength)) {
   1134         msg="wrong last invalid input";
   1135     }
   1136 
   1137     if(msg==NULL) {
   1138         return TRUE;
   1139     } else {
   1140         char buffer[2000]; // one buffer for all strings
   1141         char *s, *bytesString, *unicodeString, *resultString,
   1142             *offsetsString, *resultOffsetsString,
   1143             *invalidCharsString, *resultInvalidCharsString;
   1144 
   1145         bytesString=s=buffer;
   1146         s=printBytes(cc.bytes, cc.bytesLength, bytesString);
   1147         s=printUnicode(cc.unicode, cc.unicodeLength, unicodeString=s);
   1148         s=printUnicode(result, resultLength, resultString=s);
   1149         s=printOffsets(cc.offsets, cc.unicodeLength, offsetsString=s);
   1150         s=printOffsets(resultOffsets, resultLength, resultOffsetsString=s);
   1151         s=printBytes(cc.invalidChars, cc.invalidLength, invalidCharsString=s);
   1152         s=printBytes((uint8_t *)resultInvalidChars, resultInvalidLength, resultInvalidCharsString=s);
   1153 
   1154         if((s-buffer)>(int32_t)sizeof(buffer)) {
   1155             errln("toUnicode[%d](%s cb=\"%s\" fb=%d flush=%d %s) fatal error: checkToUnicode() test output buffer overflow writing %d chars\n",
   1156                     cc.caseNr, cc.charset, cc.cbopt, cc.fallbacks, cc.finalFlush, name, (int)(s-buffer));
   1157             exit(1);
   1158         }
   1159 
   1160         errln("toUnicode[%d](%s cb=\"%s\" fb=%d flush=%d %s) failed: %s\n"
   1161               "  bytes <%s>[%d]\n"
   1162               " expected <%s>[%d]\n"
   1163               "  result  <%s>[%d]\n"
   1164               " offsets         <%s>\n"
   1165               "  result offsets <%s>\n"
   1166               " error code expected %s got %s\n"
   1167               "  invalidChars expected <%s> got <%s>\n",
   1168               cc.caseNr, cc.charset, cc.cbopt, cc.fallbacks, cc.finalFlush, name, msg,
   1169               bytesString, cc.bytesLength,
   1170               unicodeString, cc.unicodeLength,
   1171               resultString, resultLength,
   1172               offsetsString,
   1173               resultOffsetsString,
   1174               u_errorName(cc.outErrorCode), u_errorName(resultErrorCode),
   1175               invalidCharsString, resultInvalidCharsString);
   1176 
   1177         return FALSE;
   1178     }
   1179 }
   1180 
   1181 // fromUnicode test worker functions --------------------------------------- ***
   1182 
   1183 static int32_t
   1184 stepFromUTF8(ConversionCase &cc,
   1185              UConverter *utf8Cnv, UConverter *cnv,
   1186              char *result, int32_t resultCapacity,
   1187              int32_t step,
   1188              UErrorCode *pErrorCode) {
   1189     const char *source, *sourceLimit, *utf8Limit;
   1190     UChar pivotBuffer[32];
   1191     UChar *pivotSource, *pivotTarget, *pivotLimit;
   1192     char *target, *targetLimit, *resultLimit;
   1193     UBool flush;
   1194 
   1195     source=cc.utf8;
   1196     pivotSource=pivotTarget=pivotBuffer;
   1197     target=result;
   1198     utf8Limit=source+cc.utf8Length;
   1199     resultLimit=result+resultCapacity;
   1200 
   1201     // call ucnv_convertEx() with in/out buffers no larger than (step) at a time
   1202     // move only one buffer (in vs. out) at a time to be extra mean
   1203     // step==0 performs bulk conversion
   1204 
   1205     // initialize the partial limits for the loop
   1206     if(step==0) {
   1207         // use the entire buffers
   1208         sourceLimit=utf8Limit;
   1209         targetLimit=resultLimit;
   1210         flush=cc.finalFlush;
   1211 
   1212         pivotLimit=pivotBuffer+LENGTHOF(pivotBuffer);
   1213     } else {
   1214         // start with empty partial buffers
   1215         sourceLimit=source;
   1216         targetLimit=target;
   1217         flush=FALSE;
   1218 
   1219         // empty pivot is not allowed, make it of length step
   1220         pivotLimit=pivotBuffer+step;
   1221     }
   1222 
   1223     for(;;) {
   1224         // resetting the opposite conversion direction must not affect this one
   1225         ucnv_resetFromUnicode(utf8Cnv);
   1226         ucnv_resetToUnicode(cnv);
   1227 
   1228         // convert
   1229         ucnv_convertEx(cnv, utf8Cnv,
   1230             &target, targetLimit,
   1231             &source, sourceLimit,
   1232             pivotBuffer, &pivotSource, &pivotTarget, pivotLimit,
   1233             FALSE, flush, pErrorCode);
   1234 
   1235         // check pointers and errors
   1236         if(source>sourceLimit || target>targetLimit) {
   1237             *pErrorCode=U_INTERNAL_PROGRAM_ERROR;
   1238             break;
   1239         } else if(*pErrorCode==U_BUFFER_OVERFLOW_ERROR) {
   1240             if(target!=targetLimit) {
   1241                 // buffer overflow must only be set when the target is filled
   1242                 *pErrorCode=U_INTERNAL_PROGRAM_ERROR;
   1243                 break;
   1244             } else if(targetLimit==resultLimit) {
   1245                 // not just a partial overflow
   1246                 break;
   1247             }
   1248 
   1249             // the partial target is filled, set a new limit, reset the error and continue
   1250             targetLimit=(resultLimit-target)>=step ? target+step : resultLimit;
   1251             *pErrorCode=U_ZERO_ERROR;
   1252         } else if(U_FAILURE(*pErrorCode)) {
   1253             if(pivotSource==pivotBuffer) {
   1254                 // toUnicode error, should not occur
   1255                 // toUnicode errors are tested in cintltst TestConvertExFromUTF8()
   1256                 break;
   1257             } else {
   1258                 // fromUnicode error
   1259                 // some other error occurred, done
   1260                 break;
   1261             }
   1262         } else {
   1263             if(source!=sourceLimit) {
   1264                 // when no error occurs, then the input must be consumed
   1265                 *pErrorCode=U_INTERNAL_PROGRAM_ERROR;
   1266                 break;
   1267             }
   1268 
   1269             if(sourceLimit==utf8Limit) {
   1270                 // we are done
   1271                 if(*pErrorCode==U_STRING_NOT_TERMINATED_WARNING) {
   1272                     // ucnv_convertEx() warns about not terminating the output
   1273                     // but ucnv_fromUnicode() does not and so
   1274                     // checkFromUnicode() does not expect it
   1275                     *pErrorCode=U_ZERO_ERROR;
   1276                 }
   1277                 break;
   1278             }
   1279 
   1280             // the partial conversion succeeded, set a new limit and continue
   1281             sourceLimit=(utf8Limit-source)>=step ? source+step : utf8Limit;
   1282             flush=(UBool)(cc.finalFlush && sourceLimit==utf8Limit);
   1283         }
   1284     }
   1285 
   1286     return (int32_t)(target-result);
   1287 }
   1288 
   1289 static int32_t
   1290 stepFromUnicode(ConversionCase &cc, UConverter *cnv,
   1291                 char *result, int32_t resultCapacity,
   1292                 int32_t *resultOffsets, /* also resultCapacity */
   1293                 int32_t step,
   1294                 UErrorCode *pErrorCode) {
   1295     const UChar *source, *sourceLimit, *unicodeLimit;
   1296     char *target, *targetLimit, *resultLimit;
   1297     UBool flush;
   1298 
   1299     source=cc.unicode;
   1300     target=result;
   1301     unicodeLimit=source+cc.unicodeLength;
   1302     resultLimit=result+resultCapacity;
   1303 
   1304     // call ucnv_fromUnicode() with in/out buffers no larger than (step) at a time
   1305     // move only one buffer (in vs. out) at a time to be extra mean
   1306     // step==0 performs bulk conversion and generates offsets
   1307 
   1308     // initialize the partial limits for the loop
   1309     if(step==0) {
   1310         // use the entire buffers
   1311         sourceLimit=unicodeLimit;
   1312         targetLimit=resultLimit;
   1313         flush=cc.finalFlush;
   1314     } else {
   1315         // start with empty partial buffers
   1316         sourceLimit=source;
   1317         targetLimit=target;
   1318         flush=FALSE;
   1319 
   1320         // output offsets only for bulk conversion
   1321         resultOffsets=NULL;
   1322     }
   1323 
   1324     for(;;) {
   1325         // resetting the opposite conversion direction must not affect this one
   1326         ucnv_resetToUnicode(cnv);
   1327 
   1328         // convert
   1329         ucnv_fromUnicode(cnv,
   1330             &target, targetLimit,
   1331             &source, sourceLimit,
   1332             resultOffsets,
   1333             flush, pErrorCode);
   1334 
   1335         // check pointers and errors
   1336         if(source>sourceLimit || target>targetLimit) {
   1337             *pErrorCode=U_INTERNAL_PROGRAM_ERROR;
   1338             break;
   1339         } else if(*pErrorCode==U_BUFFER_OVERFLOW_ERROR) {
   1340             if(target!=targetLimit) {
   1341                 // buffer overflow must only be set when the target is filled
   1342                 *pErrorCode=U_INTERNAL_PROGRAM_ERROR;
   1343                 break;
   1344             } else if(targetLimit==resultLimit) {
   1345                 // not just a partial overflow
   1346                 break;
   1347             }
   1348 
   1349             // the partial target is filled, set a new limit, reset the error and continue
   1350             targetLimit=(resultLimit-target)>=step ? target+step : resultLimit;
   1351             *pErrorCode=U_ZERO_ERROR;
   1352         } else if(U_FAILURE(*pErrorCode)) {
   1353             // some other error occurred, done
   1354             break;
   1355         } else {
   1356             if(source!=sourceLimit) {
   1357                 // when no error occurs, then the input must be consumed
   1358                 *pErrorCode=U_INTERNAL_PROGRAM_ERROR;
   1359                 break;
   1360             }
   1361 
   1362             if(sourceLimit==unicodeLimit) {
   1363                 // we are done
   1364                 break;
   1365             }
   1366 
   1367             // the partial conversion succeeded, set a new limit and continue
   1368             sourceLimit=(unicodeLimit-source)>=step ? source+step : unicodeLimit;
   1369             flush=(UBool)(cc.finalFlush && sourceLimit==unicodeLimit);
   1370         }
   1371     }
   1372 
   1373     return (int32_t)(target-result);
   1374 }
   1375 
   1376 UBool
   1377 ConversionTest::FromUnicodeCase(ConversionCase &cc, UConverterFromUCallback callback, const char *option) {
   1378     UConverter *cnv;
   1379     UErrorCode errorCode;
   1380 
   1381     // open the converter
   1382     errorCode=U_ZERO_ERROR;
   1383     cnv=cnv_open(cc.charset, errorCode);
   1384     if(U_FAILURE(errorCode)) {
   1385         errcheckln(errorCode, "fromUnicode[%d](%s cb=\"%s\" fb=%d flush=%d) ucnv_open() failed - %s",
   1386                 cc.caseNr, cc.charset, cc.cbopt, cc.fallbacks, cc.finalFlush, u_errorName(errorCode));
   1387         return FALSE;
   1388     }
   1389     ucnv_resetToUnicode(utf8Cnv);
   1390 
   1391     // set the callback
   1392     if(callback!=NULL) {
   1393         ucnv_setFromUCallBack(cnv, callback, option, NULL, NULL, &errorCode);
   1394         if(U_FAILURE(errorCode)) {
   1395             errln("fromUnicode[%d](%s cb=\"%s\" fb=%d flush=%d) ucnv_setFromUCallBack() failed - %s",
   1396                     cc.caseNr, cc.charset, cc.cbopt, cc.fallbacks, cc.finalFlush, u_errorName(errorCode));
   1397             ucnv_close(cnv);
   1398             return FALSE;
   1399         }
   1400     }
   1401 
   1402     // set the fallbacks flag
   1403     // TODO change with Jitterbug 2401, then add a similar call for toUnicode too
   1404     ucnv_setFallback(cnv, cc.fallbacks);
   1405 
   1406     // set the subchar
   1407     int32_t length;
   1408 
   1409     if(cc.setSub>0) {
   1410         length=(int32_t)strlen(cc.subchar);
   1411         ucnv_setSubstChars(cnv, cc.subchar, (int8_t)length, &errorCode);
   1412         if(U_FAILURE(errorCode)) {
   1413             errln("fromUnicode[%d](%s cb=\"%s\" fb=%d flush=%d) ucnv_setSubstChars() failed - %s",
   1414                     cc.caseNr, cc.charset, cc.cbopt, cc.fallbacks, cc.finalFlush, u_errorName(errorCode));
   1415             ucnv_close(cnv);
   1416             return FALSE;
   1417         }
   1418     } else if(cc.setSub<0) {
   1419         ucnv_setSubstString(cnv, cc.subString, -1, &errorCode);
   1420         if(U_FAILURE(errorCode)) {
   1421             errln("fromUnicode[%d](%s cb=\"%s\" fb=%d flush=%d) ucnv_setSubstString() failed - %s",
   1422                     cc.caseNr, cc.charset, cc.cbopt, cc.fallbacks, cc.finalFlush, u_errorName(errorCode));
   1423             ucnv_close(cnv);
   1424             return FALSE;
   1425         }
   1426     }
   1427 
   1428     // convert unicode to utf8
   1429     char utf8[256];
   1430     cc.utf8=utf8;
   1431     u_strToUTF8(utf8, LENGTHOF(utf8), &cc.utf8Length,
   1432                 cc.unicode, cc.unicodeLength,
   1433                 &errorCode);
   1434     if(U_FAILURE(errorCode)) {
   1435         // skip UTF-8 testing of a string with an unpaired surrogate,
   1436         // or of one that's too long
   1437         // toUnicode errors are tested in cintltst TestConvertExFromUTF8()
   1438         cc.utf8Length=-1;
   1439     }
   1440 
   1441     int32_t resultOffsets[256];
   1442     char result[256];
   1443     int32_t resultLength;
   1444     UBool ok;
   1445 
   1446     static const struct {
   1447         int32_t step;
   1448         const char *name, *utf8Name;
   1449     } steps[]={
   1450         { 0, "bulk",   "utf8" }, // must be first for offsets to be checked
   1451         { 1, "step=1", "utf8 step=1" },
   1452         { 3, "step=3", "utf8 step=3" },
   1453         { 7, "step=7", "utf8 step=7" }
   1454     };
   1455     int32_t i, step;
   1456 
   1457     ok=TRUE;
   1458     for(i=0; i<LENGTHOF(steps) && ok; ++i) {
   1459         step=steps[i].step;
   1460         memset(resultOffsets, -1, LENGTHOF(resultOffsets));
   1461         memset(result, -1, LENGTHOF(result));
   1462         errorCode=U_ZERO_ERROR;
   1463         resultLength=stepFromUnicode(cc, cnv,
   1464                                 result, LENGTHOF(result),
   1465                                 step==0 ? resultOffsets : NULL,
   1466                                 step, &errorCode);
   1467         ok=checkFromUnicode(
   1468                 cc, cnv, steps[i].name,
   1469                 (uint8_t *)result, resultLength,
   1470                 cc.offsets!=NULL ? resultOffsets : NULL,
   1471                 errorCode);
   1472         if(U_FAILURE(errorCode) || !cc.finalFlush) {
   1473             // reset if an error occurred or we did not flush
   1474             // otherwise do nothing to make sure that flushing resets
   1475             ucnv_resetFromUnicode(cnv);
   1476         }
   1477         if (resultOffsets[resultLength] != -1) {
   1478             errln("fromUnicode[%d](%s) Conversion wrote too much to offsets at index %d",
   1479                 cc.caseNr, cc.charset, resultLength);
   1480         }
   1481         if (result[resultLength] != (char)-1) {
   1482             errln("fromUnicode[%d](%s) Conversion wrote too much to result at index %d",
   1483                 cc.caseNr, cc.charset, resultLength);
   1484         }
   1485 
   1486         // bulk test is first, then offsets are not checked any more
   1487         cc.offsets=NULL;
   1488 
   1489         // test direct conversion from UTF-8
   1490         if(cc.utf8Length>=0) {
   1491             errorCode=U_ZERO_ERROR;
   1492             resultLength=stepFromUTF8(cc, utf8Cnv, cnv,
   1493                                     result, LENGTHOF(result),
   1494                                     step, &errorCode);
   1495             ok=checkFromUnicode(
   1496                     cc, cnv, steps[i].utf8Name,
   1497                     (uint8_t *)result, resultLength,
   1498                     NULL,
   1499                     errorCode);
   1500             if(U_FAILURE(errorCode) || !cc.finalFlush) {
   1501                 // reset if an error occurred or we did not flush
   1502                 // otherwise do nothing to make sure that flushing resets
   1503                 ucnv_resetToUnicode(utf8Cnv);
   1504                 ucnv_resetFromUnicode(cnv);
   1505             }
   1506         }
   1507     }
   1508 
   1509     // not a real loop, just a convenience for breaking out of the block
   1510     while(ok && cc.finalFlush) {
   1511         // test ucnv_fromUChars()
   1512         memset(result, 0, sizeof(result));
   1513 
   1514         errorCode=U_ZERO_ERROR;
   1515         resultLength=ucnv_fromUChars(cnv,
   1516                         result, LENGTHOF(result),
   1517                         cc.unicode, cc.unicodeLength,
   1518                         &errorCode);
   1519         ok=checkFromUnicode(
   1520                 cc, cnv, "fromUChars",
   1521                 (uint8_t *)result, resultLength,
   1522                 NULL,
   1523                 errorCode);
   1524         if(!ok) {
   1525             break;
   1526         }
   1527 
   1528         // test preflighting
   1529         // keep the correct result for simple checking
   1530         errorCode=U_ZERO_ERROR;
   1531         resultLength=ucnv_fromUChars(cnv,
   1532                         NULL, 0,
   1533                         cc.unicode, cc.unicodeLength,
   1534                         &errorCode);
   1535         if(errorCode==U_STRING_NOT_TERMINATED_WARNING || errorCode==U_BUFFER_OVERFLOW_ERROR) {
   1536             errorCode=U_ZERO_ERROR;
   1537         }
   1538         ok=checkFromUnicode(
   1539                 cc, cnv, "preflight fromUChars",
   1540                 (uint8_t *)result, resultLength,
   1541                 NULL,
   1542                 errorCode);
   1543         break;
   1544     }
   1545 
   1546     ucnv_close(cnv);
   1547     return ok;
   1548 }
   1549 
   1550 UBool
   1551 ConversionTest::checkFromUnicode(ConversionCase &cc, UConverter *cnv, const char *name,
   1552                                  const uint8_t *result, int32_t resultLength,
   1553                                  const int32_t *resultOffsets,
   1554                                  UErrorCode resultErrorCode) {
   1555     UChar resultInvalidUChars[8];
   1556     int8_t resultInvalidLength;
   1557     UErrorCode errorCode;
   1558 
   1559     const char *msg;
   1560 
   1561     // reset the message; NULL will mean "ok"
   1562     msg=NULL;
   1563 
   1564     errorCode=U_ZERO_ERROR;
   1565     resultInvalidLength=LENGTHOF(resultInvalidUChars);
   1566     ucnv_getInvalidUChars(cnv, resultInvalidUChars, &resultInvalidLength, &errorCode);
   1567     if(U_FAILURE(errorCode)) {
   1568         errln("fromUnicode[%d](%s cb=\"%s\" fb=%d flush=%d %s) ucnv_getInvalidUChars() failed - %s",
   1569                 cc.caseNr, cc.charset, cc.cbopt, cc.fallbacks, cc.finalFlush, name, u_errorName(errorCode));
   1570         return FALSE;
   1571     }
   1572 
   1573     // check everything that might have gone wrong
   1574     if(cc.bytesLength!=resultLength) {
   1575         msg="wrong result length";
   1576     } else if(0!=memcmp(cc.bytes, result, cc.bytesLength)) {
   1577         msg="wrong result string";
   1578     } else if(cc.offsets!=NULL && 0!=memcmp(cc.offsets, resultOffsets, cc.bytesLength*sizeof(*cc.offsets))) {
   1579         msg="wrong offsets";
   1580     } else if(cc.outErrorCode!=resultErrorCode) {
   1581         msg="wrong error code";
   1582     } else if(cc.invalidLength!=resultInvalidLength) {
   1583         msg="wrong length of last invalid input";
   1584     } else if(0!=u_memcmp(cc.invalidUChars, resultInvalidUChars, cc.invalidLength)) {
   1585         msg="wrong last invalid input";
   1586     }
   1587 
   1588     if(msg==NULL) {
   1589         return TRUE;
   1590     } else {
   1591         char buffer[2000]; // one buffer for all strings
   1592         char *s, *unicodeString, *bytesString, *resultString,
   1593             *offsetsString, *resultOffsetsString,
   1594             *invalidCharsString, *resultInvalidUCharsString;
   1595 
   1596         unicodeString=s=buffer;
   1597         s=printUnicode(cc.unicode, cc.unicodeLength, unicodeString);
   1598         s=printBytes(cc.bytes, cc.bytesLength, bytesString=s);
   1599         s=printBytes(result, resultLength, resultString=s);
   1600         s=printOffsets(cc.offsets, cc.bytesLength, offsetsString=s);
   1601         s=printOffsets(resultOffsets, resultLength, resultOffsetsString=s);
   1602         s=printUnicode(cc.invalidUChars, cc.invalidLength, invalidCharsString=s);
   1603         s=printUnicode(resultInvalidUChars, resultInvalidLength, resultInvalidUCharsString=s);
   1604 
   1605         if((s-buffer)>(int32_t)sizeof(buffer)) {
   1606             errln("fromUnicode[%d](%s cb=\"%s\" fb=%d flush=%d %s) fatal error: checkFromUnicode() test output buffer overflow writing %d chars\n",
   1607                     cc.caseNr, cc.charset, cc.cbopt, cc.fallbacks, cc.finalFlush, name, (int)(s-buffer));
   1608             exit(1);
   1609         }
   1610 
   1611         errln("fromUnicode[%d](%s cb=\"%s\" fb=%d flush=%d %s) failed: %s\n"
   1612               "  unicode <%s>[%d]\n"
   1613               " expected <%s>[%d]\n"
   1614               "  result  <%s>[%d]\n"
   1615               " offsets         <%s>\n"
   1616               "  result offsets <%s>\n"
   1617               " error code expected %s got %s\n"
   1618               "  invalidChars expected <%s> got <%s>\n",
   1619               cc.caseNr, cc.charset, cc.cbopt, cc.fallbacks, cc.finalFlush, name, msg,
   1620               unicodeString, cc.unicodeLength,
   1621               bytesString, cc.bytesLength,
   1622               resultString, resultLength,
   1623               offsetsString,
   1624               resultOffsetsString,
   1625               u_errorName(cc.outErrorCode), u_errorName(resultErrorCode),
   1626               invalidCharsString, resultInvalidUCharsString);
   1627 
   1628         return FALSE;
   1629     }
   1630 }
   1631 
   1632 #endif /* #if !UCONFIG_NO_LEGACY_CONVERSION */
   1633