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      1 /*
      2 *******************************************************************************
      3 *
      4 *   Copyright (C) 2003-2013, 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-CN tables.
    122                 // We skip the TestGetKeywordValuesForLocale for counting available collations.
    123                 if (strlen(charset) >= 8 &&
    124                     strncmp(charset+4, "2022-CN", 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-CN tables.
    244                 // We skip the TestGetKeywordValuesForLocale for counting available collations.
    245                 if (strlen(charset) >= 8 &&
    246                     strncmp(charset+4, "2022-CN", 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-CN tables.
    406                 // We skip the TestGetKeywordValuesForLocale for counting available collations.
    407                 if (strlen(charset) >= 8 &&
    408                     strncmp(charset+4, "2022-CN", 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         // Converter names that start with '+' are ignored in ICU4J tests.
    684         ++name;
    685     }
    686     if(name!=NULL && *name=='*') {
    687         /* loadTestData(): set the data directory */
    688         return ucnv_openPackage(loadTestData(errorCode), name+1, &errorCode);
    689     } else {
    690         return ucnv_open(name, &errorCode);
    691     }
    692 }
    693 
    694 // output helpers ---------------------------------------------------------- ***
    695 
    696 static inline char
    697 hexDigit(uint8_t digit) {
    698     return digit<=9 ? (char)('0'+digit) : (char)('a'-10+digit);
    699 }
    700 
    701 static char *
    702 printBytes(const uint8_t *bytes, int32_t length, char *out) {
    703     uint8_t b;
    704 
    705     if(length>0) {
    706         b=*bytes++;
    707         --length;
    708         *out++=hexDigit((uint8_t)(b>>4));
    709         *out++=hexDigit((uint8_t)(b&0xf));
    710     }
    711 
    712     while(length>0) {
    713         b=*bytes++;
    714         --length;
    715         *out++=' ';
    716         *out++=hexDigit((uint8_t)(b>>4));
    717         *out++=hexDigit((uint8_t)(b&0xf));
    718     }
    719     *out++=0;
    720     return out;
    721 }
    722 
    723 static char *
    724 printUnicode(const UChar *unicode, int32_t length, char *out) {
    725     UChar32 c;
    726     int32_t i;
    727 
    728     for(i=0; i<length;) {
    729         if(i>0) {
    730             *out++=' ';
    731         }
    732         U16_NEXT(unicode, i, length, c);
    733         // write 4..6 digits
    734         if(c>=0x100000) {
    735             *out++='1';
    736         }
    737         if(c>=0x10000) {
    738             *out++=hexDigit((uint8_t)((c>>16)&0xf));
    739         }
    740         *out++=hexDigit((uint8_t)((c>>12)&0xf));
    741         *out++=hexDigit((uint8_t)((c>>8)&0xf));
    742         *out++=hexDigit((uint8_t)((c>>4)&0xf));
    743         *out++=hexDigit((uint8_t)(c&0xf));
    744     }
    745     *out++=0;
    746     return out;
    747 }
    748 
    749 static char *
    750 printOffsets(const int32_t *offsets, int32_t length, char *out) {
    751     int32_t i, o, d;
    752 
    753     if(offsets==NULL) {
    754         length=0;
    755     }
    756 
    757     for(i=0; i<length; ++i) {
    758         if(i>0) {
    759             *out++=' ';
    760         }
    761         o=offsets[i];
    762 
    763         // print all offsets with 2 characters each (-x, -9..99, xx)
    764         if(o<-9) {
    765             *out++='-';
    766             *out++='x';
    767         } else if(o<0) {
    768             *out++='-';
    769             *out++=(char)('0'-o);
    770         } else if(o<=99) {
    771             *out++=(d=o/10)==0 ? ' ' : (char)('0'+d);
    772             *out++=(char)('0'+o%10);
    773         } else /* o>99 */ {
    774             *out++='x';
    775             *out++='x';
    776         }
    777     }
    778     *out++=0;
    779     return out;
    780 }
    781 
    782 // toUnicode test worker functions ----------------------------------------- ***
    783 
    784 static int32_t
    785 stepToUnicode(ConversionCase &cc, UConverter *cnv,
    786               UChar *result, int32_t resultCapacity,
    787               int32_t *resultOffsets, /* also resultCapacity */
    788               int32_t step,
    789               UErrorCode *pErrorCode) {
    790     const char *source, *sourceLimit, *bytesLimit;
    791     UChar *target, *targetLimit, *resultLimit;
    792     UBool flush;
    793 
    794     source=(const char *)cc.bytes;
    795     target=result;
    796     bytesLimit=source+cc.bytesLength;
    797     resultLimit=result+resultCapacity;
    798 
    799     if(step>=0) {
    800         // call ucnv_toUnicode() with in/out buffers no larger than (step) at a time
    801         // move only one buffer (in vs. out) at a time to be extra mean
    802         // step==0 performs bulk conversion and generates offsets
    803 
    804         // initialize the partial limits for the loop
    805         if(step==0) {
    806             // use the entire buffers
    807             sourceLimit=bytesLimit;
    808             targetLimit=resultLimit;
    809             flush=cc.finalFlush;
    810         } else {
    811             // start with empty partial buffers
    812             sourceLimit=source;
    813             targetLimit=target;
    814             flush=FALSE;
    815 
    816             // output offsets only for bulk conversion
    817             resultOffsets=NULL;
    818         }
    819 
    820         for(;;) {
    821             // resetting the opposite conversion direction must not affect this one
    822             ucnv_resetFromUnicode(cnv);
    823 
    824             // convert
    825             ucnv_toUnicode(cnv,
    826                 &target, targetLimit,
    827                 &source, sourceLimit,
    828                 resultOffsets,
    829                 flush, pErrorCode);
    830 
    831             // check pointers and errors
    832             if(source>sourceLimit || target>targetLimit) {
    833                 *pErrorCode=U_INTERNAL_PROGRAM_ERROR;
    834                 break;
    835             } else if(*pErrorCode==U_BUFFER_OVERFLOW_ERROR) {
    836                 if(target!=targetLimit) {
    837                     // buffer overflow must only be set when the target is filled
    838                     *pErrorCode=U_INTERNAL_PROGRAM_ERROR;
    839                     break;
    840                 } else if(targetLimit==resultLimit) {
    841                     // not just a partial overflow
    842                     break;
    843                 }
    844 
    845                 // the partial target is filled, set a new limit, reset the error and continue
    846                 targetLimit=(resultLimit-target)>=step ? target+step : resultLimit;
    847                 *pErrorCode=U_ZERO_ERROR;
    848             } else if(U_FAILURE(*pErrorCode)) {
    849                 // some other error occurred, done
    850                 break;
    851             } else {
    852                 if(source!=sourceLimit) {
    853                     // when no error occurs, then the input must be consumed
    854                     *pErrorCode=U_INTERNAL_PROGRAM_ERROR;
    855                     break;
    856                 }
    857 
    858                 if(sourceLimit==bytesLimit) {
    859                     // we are done
    860                     break;
    861                 }
    862 
    863                 // the partial conversion succeeded, set a new limit and continue
    864                 sourceLimit=(bytesLimit-source)>=step ? source+step : bytesLimit;
    865                 flush=(UBool)(cc.finalFlush && sourceLimit==bytesLimit);
    866             }
    867         }
    868     } else /* step<0 */ {
    869         /*
    870          * step==-1: call only ucnv_getNextUChar()
    871          * otherwise alternate between ucnv_toUnicode() and ucnv_getNextUChar()
    872          *   if step==-2 or -3, then give ucnv_toUnicode() the whole remaining input,
    873          *   else give it at most (-step-2)/2 bytes
    874          */
    875         UChar32 c;
    876 
    877         // end the loop by getting an index out of bounds error
    878         for(;;) {
    879             // resetting the opposite conversion direction must not affect this one
    880             ucnv_resetFromUnicode(cnv);
    881 
    882             // convert
    883             if((step&1)!=0 /* odd: -1, -3, -5, ... */) {
    884                 sourceLimit=source; // use sourceLimit not as a real limit
    885                                     // but to remember the pre-getNextUChar source pointer
    886                 c=ucnv_getNextUChar(cnv, &source, bytesLimit, pErrorCode);
    887 
    888                 // check pointers and errors
    889                 if(*pErrorCode==U_INDEX_OUTOFBOUNDS_ERROR) {
    890                     if(source!=bytesLimit) {
    891                         *pErrorCode=U_INTERNAL_PROGRAM_ERROR;
    892                     } else {
    893                         *pErrorCode=U_ZERO_ERROR;
    894                     }
    895                     break;
    896                 } else if(U_FAILURE(*pErrorCode)) {
    897                     break;
    898                 }
    899                 // source may not move if c is from previous overflow
    900 
    901                 if(target==resultLimit) {
    902                     *pErrorCode=U_BUFFER_OVERFLOW_ERROR;
    903                     break;
    904                 }
    905                 if(c<=0xffff) {
    906                     *target++=(UChar)c;
    907                 } else {
    908                     *target++=U16_LEAD(c);
    909                     if(target==resultLimit) {
    910                         *pErrorCode=U_BUFFER_OVERFLOW_ERROR;
    911                         break;
    912                     }
    913                     *target++=U16_TRAIL(c);
    914                 }
    915 
    916                 // alternate between -n-1 and -n but leave -1 alone
    917                 if(step<-1) {
    918                     ++step;
    919                 }
    920             } else /* step is even */ {
    921                 // allow only one UChar output
    922                 targetLimit=target<resultLimit ? target+1 : resultLimit;
    923 
    924                 // as with ucnv_getNextUChar(), we always flush (if we go to bytesLimit)
    925                 // and never output offsets
    926                 if(step==-2) {
    927                     sourceLimit=bytesLimit;
    928                 } else {
    929                     sourceLimit=source+(-step-2)/2;
    930                     if(sourceLimit>bytesLimit) {
    931                         sourceLimit=bytesLimit;
    932                     }
    933                 }
    934 
    935                 ucnv_toUnicode(cnv,
    936                     &target, targetLimit,
    937                     &source, sourceLimit,
    938                     NULL, (UBool)(sourceLimit==bytesLimit), pErrorCode);
    939 
    940                 // check pointers and errors
    941                 if(*pErrorCode==U_BUFFER_OVERFLOW_ERROR) {
    942                     if(target!=targetLimit) {
    943                         // buffer overflow must only be set when the target is filled
    944                         *pErrorCode=U_INTERNAL_PROGRAM_ERROR;
    945                         break;
    946                     } else if(targetLimit==resultLimit) {
    947                         // not just a partial overflow
    948                         break;
    949                     }
    950 
    951                     // the partial target is filled, set a new limit and continue
    952                     *pErrorCode=U_ZERO_ERROR;
    953                 } else if(U_FAILURE(*pErrorCode)) {
    954                     // some other error occurred, done
    955                     break;
    956                 } else {
    957                     if(source!=sourceLimit) {
    958                         // when no error occurs, then the input must be consumed
    959                         *pErrorCode=U_INTERNAL_PROGRAM_ERROR;
    960                         break;
    961                     }
    962 
    963                     // we are done (flush==TRUE) but we continue, to get the index out of bounds error above
    964                 }
    965 
    966                 --step;
    967             }
    968         }
    969     }
    970 
    971     return (int32_t)(target-result);
    972 }
    973 
    974 UBool
    975 ConversionTest::ToUnicodeCase(ConversionCase &cc, UConverterToUCallback callback, const char *option) {
    976     // open the converter
    977     IcuTestErrorCode errorCode(*this, "ToUnicodeCase");
    978     LocalUConverterPointer cnv(cnv_open(cc.charset, errorCode));
    979     if(errorCode.isFailure()) {
    980         errcheckln(errorCode, "toUnicode[%d](%s cb=\"%s\" fb=%d flush=%d) ucnv_open() failed - %s",
    981                 cc.caseNr, cc.charset, cc.cbopt, cc.fallbacks, cc.finalFlush, errorCode.errorName());
    982         errorCode.reset();
    983         return FALSE;
    984     }
    985 
    986     // set the callback
    987     if(callback!=NULL) {
    988         ucnv_setToUCallBack(cnv.getAlias(), callback, option, NULL, NULL, errorCode);
    989         if(U_FAILURE(errorCode)) {
    990             errln("toUnicode[%d](%s cb=\"%s\" fb=%d flush=%d) ucnv_setToUCallBack() failed - %s",
    991                     cc.caseNr, cc.charset, cc.cbopt, cc.fallbacks, cc.finalFlush, u_errorName(errorCode));
    992             return FALSE;
    993         }
    994     }
    995 
    996     int32_t resultOffsets[256];
    997     UChar result[256];
    998     int32_t resultLength;
    999     UBool ok;
   1000 
   1001     static const struct {
   1002         int32_t step;
   1003         const char *name;
   1004     } steps[]={
   1005         { 0, "bulk" }, // must be first for offsets to be checked
   1006         { 1, "step=1" },
   1007         { 3, "step=3" },
   1008         { 7, "step=7" },
   1009         { -1, "getNext" },
   1010         { -2, "toU(bulk)+getNext" },
   1011         { -3, "getNext+toU(bulk)" },
   1012         { -4, "toU(1)+getNext" },
   1013         { -5, "getNext+toU(1)" },
   1014         { -12, "toU(5)+getNext" },
   1015         { -13, "getNext+toU(5)" },
   1016     };
   1017     int32_t i, step;
   1018 
   1019     ok=TRUE;
   1020     for(i=0; i<LENGTHOF(steps) && ok; ++i) {
   1021         step=steps[i].step;
   1022         if(step<0 && !cc.finalFlush) {
   1023             // skip ucnv_getNextUChar() if !finalFlush because
   1024             // ucnv_getNextUChar() always implies flush
   1025             continue;
   1026         }
   1027         if(step!=0) {
   1028             // bulk test is first, then offsets are not checked any more
   1029             cc.offsets=NULL;
   1030         }
   1031         else {
   1032             memset(resultOffsets, -1, LENGTHOF(resultOffsets));
   1033         }
   1034         memset(result, -1, LENGTHOF(result));
   1035         errorCode.reset();
   1036         resultLength=stepToUnicode(cc, cnv.getAlias(),
   1037                                 result, LENGTHOF(result),
   1038                                 step==0 ? resultOffsets : NULL,
   1039                                 step, errorCode);
   1040         ok=checkToUnicode(
   1041                 cc, cnv.getAlias(), steps[i].name,
   1042                 result, resultLength,
   1043                 cc.offsets!=NULL ? resultOffsets : NULL,
   1044                 errorCode);
   1045         if(errorCode.isFailure() || !cc.finalFlush) {
   1046             // reset if an error occurred or we did not flush
   1047             // otherwise do nothing to make sure that flushing resets
   1048             ucnv_resetToUnicode(cnv.getAlias());
   1049         }
   1050         if (cc.offsets != NULL && resultOffsets[resultLength] != -1) {
   1051             errln("toUnicode[%d](%s) Conversion wrote too much to offsets at index %d",
   1052                 cc.caseNr, cc.charset, resultLength);
   1053         }
   1054         if (result[resultLength] != (UChar)-1) {
   1055             errln("toUnicode[%d](%s) Conversion wrote too much to result at index %d",
   1056                 cc.caseNr, cc.charset, resultLength);
   1057         }
   1058     }
   1059 
   1060     // not a real loop, just a convenience for breaking out of the block
   1061     while(ok && cc.finalFlush) {
   1062         // test ucnv_toUChars()
   1063         memset(result, 0, sizeof(result));
   1064 
   1065         errorCode.reset();
   1066         resultLength=ucnv_toUChars(cnv.getAlias(),
   1067                         result, LENGTHOF(result),
   1068                         (const char *)cc.bytes, cc.bytesLength,
   1069                         errorCode);
   1070         ok=checkToUnicode(
   1071                 cc, cnv.getAlias(), "toUChars",
   1072                 result, resultLength,
   1073                 NULL,
   1074                 errorCode);
   1075         if(!ok) {
   1076             break;
   1077         }
   1078 
   1079         // test preflighting
   1080         // keep the correct result for simple checking
   1081         errorCode.reset();
   1082         resultLength=ucnv_toUChars(cnv.getAlias(),
   1083                         NULL, 0,
   1084                         (const char *)cc.bytes, cc.bytesLength,
   1085                         errorCode);
   1086         if(errorCode.get()==U_STRING_NOT_TERMINATED_WARNING || errorCode.get()==U_BUFFER_OVERFLOW_ERROR) {
   1087             errorCode.reset();
   1088         }
   1089         ok=checkToUnicode(
   1090                 cc, cnv.getAlias(), "preflight toUChars",
   1091                 result, resultLength,
   1092                 NULL,
   1093                 errorCode);
   1094         break;
   1095     }
   1096 
   1097     errorCode.reset();  // all errors have already been reported
   1098     return ok;
   1099 }
   1100 
   1101 UBool
   1102 ConversionTest::checkToUnicode(ConversionCase &cc, UConverter *cnv, const char *name,
   1103                                const UChar *result, int32_t resultLength,
   1104                                const int32_t *resultOffsets,
   1105                                UErrorCode resultErrorCode) {
   1106     char resultInvalidChars[8];
   1107     int8_t resultInvalidLength;
   1108     UErrorCode errorCode;
   1109 
   1110     const char *msg;
   1111 
   1112     // reset the message; NULL will mean "ok"
   1113     msg=NULL;
   1114 
   1115     errorCode=U_ZERO_ERROR;
   1116     resultInvalidLength=sizeof(resultInvalidChars);
   1117     ucnv_getInvalidChars(cnv, resultInvalidChars, &resultInvalidLength, &errorCode);
   1118     if(U_FAILURE(errorCode)) {
   1119         errln("toUnicode[%d](%s cb=\"%s\" fb=%d flush=%d %s) ucnv_getInvalidChars() failed - %s",
   1120                 cc.caseNr, cc.charset, cc.cbopt, cc.fallbacks, cc.finalFlush, name, u_errorName(errorCode));
   1121         return FALSE;
   1122     }
   1123 
   1124     // check everything that might have gone wrong
   1125     if(cc.unicodeLength!=resultLength) {
   1126         msg="wrong result length";
   1127     } else if(0!=u_memcmp(cc.unicode, result, cc.unicodeLength)) {
   1128         msg="wrong result string";
   1129     } else if(cc.offsets!=NULL && 0!=memcmp(cc.offsets, resultOffsets, cc.unicodeLength*sizeof(*cc.offsets))) {
   1130         msg="wrong offsets";
   1131     } else if(cc.outErrorCode!=resultErrorCode) {
   1132         msg="wrong error code";
   1133     } else if(cc.invalidLength!=resultInvalidLength) {
   1134         msg="wrong length of last invalid input";
   1135     } else if(0!=memcmp(cc.invalidChars, resultInvalidChars, cc.invalidLength)) {
   1136         msg="wrong last invalid input";
   1137     }
   1138 
   1139     if(msg==NULL) {
   1140         return TRUE;
   1141     } else {
   1142         char buffer[2000]; // one buffer for all strings
   1143         char *s, *bytesString, *unicodeString, *resultString,
   1144             *offsetsString, *resultOffsetsString,
   1145             *invalidCharsString, *resultInvalidCharsString;
   1146 
   1147         bytesString=s=buffer;
   1148         s=printBytes(cc.bytes, cc.bytesLength, bytesString);
   1149         s=printUnicode(cc.unicode, cc.unicodeLength, unicodeString=s);
   1150         s=printUnicode(result, resultLength, resultString=s);
   1151         s=printOffsets(cc.offsets, cc.unicodeLength, offsetsString=s);
   1152         s=printOffsets(resultOffsets, resultLength, resultOffsetsString=s);
   1153         s=printBytes(cc.invalidChars, cc.invalidLength, invalidCharsString=s);
   1154         s=printBytes((uint8_t *)resultInvalidChars, resultInvalidLength, resultInvalidCharsString=s);
   1155 
   1156         if((s-buffer)>(int32_t)sizeof(buffer)) {
   1157             errln("toUnicode[%d](%s cb=\"%s\" fb=%d flush=%d %s) fatal error: checkToUnicode() test output buffer overflow writing %d chars\n",
   1158                     cc.caseNr, cc.charset, cc.cbopt, cc.fallbacks, cc.finalFlush, name, (int)(s-buffer));
   1159             exit(1);
   1160         }
   1161 
   1162         errln("toUnicode[%d](%s cb=\"%s\" fb=%d flush=%d %s) failed: %s\n"
   1163               "  bytes <%s>[%d]\n"
   1164               " expected <%s>[%d]\n"
   1165               "  result  <%s>[%d]\n"
   1166               " offsets         <%s>\n"
   1167               "  result offsets <%s>\n"
   1168               " error code expected %s got %s\n"
   1169               "  invalidChars expected <%s> got <%s>\n",
   1170               cc.caseNr, cc.charset, cc.cbopt, cc.fallbacks, cc.finalFlush, name, msg,
   1171               bytesString, cc.bytesLength,
   1172               unicodeString, cc.unicodeLength,
   1173               resultString, resultLength,
   1174               offsetsString,
   1175               resultOffsetsString,
   1176               u_errorName(cc.outErrorCode), u_errorName(resultErrorCode),
   1177               invalidCharsString, resultInvalidCharsString);
   1178 
   1179         return FALSE;
   1180     }
   1181 }
   1182 
   1183 // fromUnicode test worker functions --------------------------------------- ***
   1184 
   1185 static int32_t
   1186 stepFromUTF8(ConversionCase &cc,
   1187              UConverter *utf8Cnv, UConverter *cnv,
   1188              char *result, int32_t resultCapacity,
   1189              int32_t step,
   1190              UErrorCode *pErrorCode) {
   1191     const char *source, *sourceLimit, *utf8Limit;
   1192     UChar pivotBuffer[32];
   1193     UChar *pivotSource, *pivotTarget, *pivotLimit;
   1194     char *target, *targetLimit, *resultLimit;
   1195     UBool flush;
   1196 
   1197     source=cc.utf8;
   1198     pivotSource=pivotTarget=pivotBuffer;
   1199     target=result;
   1200     utf8Limit=source+cc.utf8Length;
   1201     resultLimit=result+resultCapacity;
   1202 
   1203     // call ucnv_convertEx() with in/out buffers no larger than (step) at a time
   1204     // move only one buffer (in vs. out) at a time to be extra mean
   1205     // step==0 performs bulk conversion
   1206 
   1207     // initialize the partial limits for the loop
   1208     if(step==0) {
   1209         // use the entire buffers
   1210         sourceLimit=utf8Limit;
   1211         targetLimit=resultLimit;
   1212         flush=cc.finalFlush;
   1213 
   1214         pivotLimit=pivotBuffer+LENGTHOF(pivotBuffer);
   1215     } else {
   1216         // start with empty partial buffers
   1217         sourceLimit=source;
   1218         targetLimit=target;
   1219         flush=FALSE;
   1220 
   1221         // empty pivot is not allowed, make it of length step
   1222         pivotLimit=pivotBuffer+step;
   1223     }
   1224 
   1225     for(;;) {
   1226         // resetting the opposite conversion direction must not affect this one
   1227         ucnv_resetFromUnicode(utf8Cnv);
   1228         ucnv_resetToUnicode(cnv);
   1229 
   1230         // convert
   1231         ucnv_convertEx(cnv, utf8Cnv,
   1232             &target, targetLimit,
   1233             &source, sourceLimit,
   1234             pivotBuffer, &pivotSource, &pivotTarget, pivotLimit,
   1235             FALSE, flush, pErrorCode);
   1236 
   1237         // check pointers and errors
   1238         if(source>sourceLimit || target>targetLimit) {
   1239             *pErrorCode=U_INTERNAL_PROGRAM_ERROR;
   1240             break;
   1241         } else if(*pErrorCode==U_BUFFER_OVERFLOW_ERROR) {
   1242             if(target!=targetLimit) {
   1243                 // buffer overflow must only be set when the target is filled
   1244                 *pErrorCode=U_INTERNAL_PROGRAM_ERROR;
   1245                 break;
   1246             } else if(targetLimit==resultLimit) {
   1247                 // not just a partial overflow
   1248                 break;
   1249             }
   1250 
   1251             // the partial target is filled, set a new limit, reset the error and continue
   1252             targetLimit=(resultLimit-target)>=step ? target+step : resultLimit;
   1253             *pErrorCode=U_ZERO_ERROR;
   1254         } else if(U_FAILURE(*pErrorCode)) {
   1255             if(pivotSource==pivotBuffer) {
   1256                 // toUnicode error, should not occur
   1257                 // toUnicode errors are tested in cintltst TestConvertExFromUTF8()
   1258                 break;
   1259             } else {
   1260                 // fromUnicode error
   1261                 // some other error occurred, done
   1262                 break;
   1263             }
   1264         } else {
   1265             if(source!=sourceLimit) {
   1266                 // when no error occurs, then the input must be consumed
   1267                 *pErrorCode=U_INTERNAL_PROGRAM_ERROR;
   1268                 break;
   1269             }
   1270 
   1271             if(sourceLimit==utf8Limit) {
   1272                 // we are done
   1273                 if(*pErrorCode==U_STRING_NOT_TERMINATED_WARNING) {
   1274                     // ucnv_convertEx() warns about not terminating the output
   1275                     // but ucnv_fromUnicode() does not and so
   1276                     // checkFromUnicode() does not expect it
   1277                     *pErrorCode=U_ZERO_ERROR;
   1278                 }
   1279                 break;
   1280             }
   1281 
   1282             // the partial conversion succeeded, set a new limit and continue
   1283             sourceLimit=(utf8Limit-source)>=step ? source+step : utf8Limit;
   1284             flush=(UBool)(cc.finalFlush && sourceLimit==utf8Limit);
   1285         }
   1286     }
   1287 
   1288     return (int32_t)(target-result);
   1289 }
   1290 
   1291 static int32_t
   1292 stepFromUnicode(ConversionCase &cc, UConverter *cnv,
   1293                 char *result, int32_t resultCapacity,
   1294                 int32_t *resultOffsets, /* also resultCapacity */
   1295                 int32_t step,
   1296                 UErrorCode *pErrorCode) {
   1297     const UChar *source, *sourceLimit, *unicodeLimit;
   1298     char *target, *targetLimit, *resultLimit;
   1299     UBool flush;
   1300 
   1301     source=cc.unicode;
   1302     target=result;
   1303     unicodeLimit=source+cc.unicodeLength;
   1304     resultLimit=result+resultCapacity;
   1305 
   1306     // call ucnv_fromUnicode() with in/out buffers no larger than (step) at a time
   1307     // move only one buffer (in vs. out) at a time to be extra mean
   1308     // step==0 performs bulk conversion and generates offsets
   1309 
   1310     // initialize the partial limits for the loop
   1311     if(step==0) {
   1312         // use the entire buffers
   1313         sourceLimit=unicodeLimit;
   1314         targetLimit=resultLimit;
   1315         flush=cc.finalFlush;
   1316     } else {
   1317         // start with empty partial buffers
   1318         sourceLimit=source;
   1319         targetLimit=target;
   1320         flush=FALSE;
   1321 
   1322         // output offsets only for bulk conversion
   1323         resultOffsets=NULL;
   1324     }
   1325 
   1326     for(;;) {
   1327         // resetting the opposite conversion direction must not affect this one
   1328         ucnv_resetToUnicode(cnv);
   1329 
   1330         // convert
   1331         ucnv_fromUnicode(cnv,
   1332             &target, targetLimit,
   1333             &source, sourceLimit,
   1334             resultOffsets,
   1335             flush, pErrorCode);
   1336 
   1337         // check pointers and errors
   1338         if(source>sourceLimit || target>targetLimit) {
   1339             *pErrorCode=U_INTERNAL_PROGRAM_ERROR;
   1340             break;
   1341         } else if(*pErrorCode==U_BUFFER_OVERFLOW_ERROR) {
   1342             if(target!=targetLimit) {
   1343                 // buffer overflow must only be set when the target is filled
   1344                 *pErrorCode=U_INTERNAL_PROGRAM_ERROR;
   1345                 break;
   1346             } else if(targetLimit==resultLimit) {
   1347                 // not just a partial overflow
   1348                 break;
   1349             }
   1350 
   1351             // the partial target is filled, set a new limit, reset the error and continue
   1352             targetLimit=(resultLimit-target)>=step ? target+step : resultLimit;
   1353             *pErrorCode=U_ZERO_ERROR;
   1354         } else if(U_FAILURE(*pErrorCode)) {
   1355             // some other error occurred, done
   1356             break;
   1357         } else {
   1358             if(source!=sourceLimit) {
   1359                 // when no error occurs, then the input must be consumed
   1360                 *pErrorCode=U_INTERNAL_PROGRAM_ERROR;
   1361                 break;
   1362             }
   1363 
   1364             if(sourceLimit==unicodeLimit) {
   1365                 // we are done
   1366                 break;
   1367             }
   1368 
   1369             // the partial conversion succeeded, set a new limit and continue
   1370             sourceLimit=(unicodeLimit-source)>=step ? source+step : unicodeLimit;
   1371             flush=(UBool)(cc.finalFlush && sourceLimit==unicodeLimit);
   1372         }
   1373     }
   1374 
   1375     return (int32_t)(target-result);
   1376 }
   1377 
   1378 UBool
   1379 ConversionTest::FromUnicodeCase(ConversionCase &cc, UConverterFromUCallback callback, const char *option) {
   1380     UConverter *cnv;
   1381     UErrorCode errorCode;
   1382 
   1383     // open the converter
   1384     errorCode=U_ZERO_ERROR;
   1385     cnv=cnv_open(cc.charset, errorCode);
   1386     if(U_FAILURE(errorCode)) {
   1387         errcheckln(errorCode, "fromUnicode[%d](%s cb=\"%s\" fb=%d flush=%d) ucnv_open() failed - %s",
   1388                 cc.caseNr, cc.charset, cc.cbopt, cc.fallbacks, cc.finalFlush, u_errorName(errorCode));
   1389         return FALSE;
   1390     }
   1391     ucnv_resetToUnicode(utf8Cnv);
   1392 
   1393     // set the callback
   1394     if(callback!=NULL) {
   1395         ucnv_setFromUCallBack(cnv, callback, option, NULL, NULL, &errorCode);
   1396         if(U_FAILURE(errorCode)) {
   1397             errln("fromUnicode[%d](%s cb=\"%s\" fb=%d flush=%d) ucnv_setFromUCallBack() failed - %s",
   1398                     cc.caseNr, cc.charset, cc.cbopt, cc.fallbacks, cc.finalFlush, u_errorName(errorCode));
   1399             ucnv_close(cnv);
   1400             return FALSE;
   1401         }
   1402     }
   1403 
   1404     // set the fallbacks flag
   1405     // TODO change with Jitterbug 2401, then add a similar call for toUnicode too
   1406     ucnv_setFallback(cnv, cc.fallbacks);
   1407 
   1408     // set the subchar
   1409     int32_t length;
   1410 
   1411     if(cc.setSub>0) {
   1412         length=(int32_t)strlen(cc.subchar);
   1413         ucnv_setSubstChars(cnv, cc.subchar, (int8_t)length, &errorCode);
   1414         if(U_FAILURE(errorCode)) {
   1415             errln("fromUnicode[%d](%s cb=\"%s\" fb=%d flush=%d) ucnv_setSubstChars() failed - %s",
   1416                     cc.caseNr, cc.charset, cc.cbopt, cc.fallbacks, cc.finalFlush, u_errorName(errorCode));
   1417             ucnv_close(cnv);
   1418             return FALSE;
   1419         }
   1420     } else if(cc.setSub<0) {
   1421         ucnv_setSubstString(cnv, cc.subString, -1, &errorCode);
   1422         if(U_FAILURE(errorCode)) {
   1423             errln("fromUnicode[%d](%s cb=\"%s\" fb=%d flush=%d) ucnv_setSubstString() failed - %s",
   1424                     cc.caseNr, cc.charset, cc.cbopt, cc.fallbacks, cc.finalFlush, u_errorName(errorCode));
   1425             ucnv_close(cnv);
   1426             return FALSE;
   1427         }
   1428     }
   1429 
   1430     // convert unicode to utf8
   1431     char utf8[256];
   1432     cc.utf8=utf8;
   1433     u_strToUTF8(utf8, LENGTHOF(utf8), &cc.utf8Length,
   1434                 cc.unicode, cc.unicodeLength,
   1435                 &errorCode);
   1436     if(U_FAILURE(errorCode)) {
   1437         // skip UTF-8 testing of a string with an unpaired surrogate,
   1438         // or of one that's too long
   1439         // toUnicode errors are tested in cintltst TestConvertExFromUTF8()
   1440         cc.utf8Length=-1;
   1441     }
   1442 
   1443     int32_t resultOffsets[256];
   1444     char result[256];
   1445     int32_t resultLength;
   1446     UBool ok;
   1447 
   1448     static const struct {
   1449         int32_t step;
   1450         const char *name, *utf8Name;
   1451     } steps[]={
   1452         { 0, "bulk",   "utf8" }, // must be first for offsets to be checked
   1453         { 1, "step=1", "utf8 step=1" },
   1454         { 3, "step=3", "utf8 step=3" },
   1455         { 7, "step=7", "utf8 step=7" }
   1456     };
   1457     int32_t i, step;
   1458 
   1459     ok=TRUE;
   1460     for(i=0; i<LENGTHOF(steps) && ok; ++i) {
   1461         step=steps[i].step;
   1462         memset(resultOffsets, -1, LENGTHOF(resultOffsets));
   1463         memset(result, -1, LENGTHOF(result));
   1464         errorCode=U_ZERO_ERROR;
   1465         resultLength=stepFromUnicode(cc, cnv,
   1466                                 result, LENGTHOF(result),
   1467                                 step==0 ? resultOffsets : NULL,
   1468                                 step, &errorCode);
   1469         ok=checkFromUnicode(
   1470                 cc, cnv, steps[i].name,
   1471                 (uint8_t *)result, resultLength,
   1472                 cc.offsets!=NULL ? resultOffsets : NULL,
   1473                 errorCode);
   1474         if(U_FAILURE(errorCode) || !cc.finalFlush) {
   1475             // reset if an error occurred or we did not flush
   1476             // otherwise do nothing to make sure that flushing resets
   1477             ucnv_resetFromUnicode(cnv);
   1478         }
   1479         if (resultOffsets[resultLength] != -1) {
   1480             errln("fromUnicode[%d](%s) Conversion wrote too much to offsets at index %d",
   1481                 cc.caseNr, cc.charset, resultLength);
   1482         }
   1483         if (result[resultLength] != (char)-1) {
   1484             errln("fromUnicode[%d](%s) Conversion wrote too much to result at index %d",
   1485                 cc.caseNr, cc.charset, resultLength);
   1486         }
   1487 
   1488         // bulk test is first, then offsets are not checked any more
   1489         cc.offsets=NULL;
   1490 
   1491         // test direct conversion from UTF-8
   1492         if(cc.utf8Length>=0) {
   1493             errorCode=U_ZERO_ERROR;
   1494             resultLength=stepFromUTF8(cc, utf8Cnv, cnv,
   1495                                     result, LENGTHOF(result),
   1496                                     step, &errorCode);
   1497             ok=checkFromUnicode(
   1498                     cc, cnv, steps[i].utf8Name,
   1499                     (uint8_t *)result, resultLength,
   1500                     NULL,
   1501                     errorCode);
   1502             if(U_FAILURE(errorCode) || !cc.finalFlush) {
   1503                 // reset if an error occurred or we did not flush
   1504                 // otherwise do nothing to make sure that flushing resets
   1505                 ucnv_resetToUnicode(utf8Cnv);
   1506                 ucnv_resetFromUnicode(cnv);
   1507             }
   1508         }
   1509     }
   1510 
   1511     // not a real loop, just a convenience for breaking out of the block
   1512     while(ok && cc.finalFlush) {
   1513         // test ucnv_fromUChars()
   1514         memset(result, 0, sizeof(result));
   1515 
   1516         errorCode=U_ZERO_ERROR;
   1517         resultLength=ucnv_fromUChars(cnv,
   1518                         result, LENGTHOF(result),
   1519                         cc.unicode, cc.unicodeLength,
   1520                         &errorCode);
   1521         ok=checkFromUnicode(
   1522                 cc, cnv, "fromUChars",
   1523                 (uint8_t *)result, resultLength,
   1524                 NULL,
   1525                 errorCode);
   1526         if(!ok) {
   1527             break;
   1528         }
   1529 
   1530         // test preflighting
   1531         // keep the correct result for simple checking
   1532         errorCode=U_ZERO_ERROR;
   1533         resultLength=ucnv_fromUChars(cnv,
   1534                         NULL, 0,
   1535                         cc.unicode, cc.unicodeLength,
   1536                         &errorCode);
   1537         if(errorCode==U_STRING_NOT_TERMINATED_WARNING || errorCode==U_BUFFER_OVERFLOW_ERROR) {
   1538             errorCode=U_ZERO_ERROR;
   1539         }
   1540         ok=checkFromUnicode(
   1541                 cc, cnv, "preflight fromUChars",
   1542                 (uint8_t *)result, resultLength,
   1543                 NULL,
   1544                 errorCode);
   1545         break;
   1546     }
   1547 
   1548     ucnv_close(cnv);
   1549     return ok;
   1550 }
   1551 
   1552 UBool
   1553 ConversionTest::checkFromUnicode(ConversionCase &cc, UConverter *cnv, const char *name,
   1554                                  const uint8_t *result, int32_t resultLength,
   1555                                  const int32_t *resultOffsets,
   1556                                  UErrorCode resultErrorCode) {
   1557     UChar resultInvalidUChars[8];
   1558     int8_t resultInvalidLength;
   1559     UErrorCode errorCode;
   1560 
   1561     const char *msg;
   1562 
   1563     // reset the message; NULL will mean "ok"
   1564     msg=NULL;
   1565 
   1566     errorCode=U_ZERO_ERROR;
   1567     resultInvalidLength=LENGTHOF(resultInvalidUChars);
   1568     ucnv_getInvalidUChars(cnv, resultInvalidUChars, &resultInvalidLength, &errorCode);
   1569     if(U_FAILURE(errorCode)) {
   1570         errln("fromUnicode[%d](%s cb=\"%s\" fb=%d flush=%d %s) ucnv_getInvalidUChars() failed - %s",
   1571                 cc.caseNr, cc.charset, cc.cbopt, cc.fallbacks, cc.finalFlush, name, u_errorName(errorCode));
   1572         return FALSE;
   1573     }
   1574 
   1575     // check everything that might have gone wrong
   1576     if(cc.bytesLength!=resultLength) {
   1577         msg="wrong result length";
   1578     } else if(0!=memcmp(cc.bytes, result, cc.bytesLength)) {
   1579         msg="wrong result string";
   1580     } else if(cc.offsets!=NULL && 0!=memcmp(cc.offsets, resultOffsets, cc.bytesLength*sizeof(*cc.offsets))) {
   1581         msg="wrong offsets";
   1582     } else if(cc.outErrorCode!=resultErrorCode) {
   1583         msg="wrong error code";
   1584     } else if(cc.invalidLength!=resultInvalidLength) {
   1585         msg="wrong length of last invalid input";
   1586     } else if(0!=u_memcmp(cc.invalidUChars, resultInvalidUChars, cc.invalidLength)) {
   1587         msg="wrong last invalid input";
   1588     }
   1589 
   1590     if(msg==NULL) {
   1591         return TRUE;
   1592     } else {
   1593         char buffer[2000]; // one buffer for all strings
   1594         char *s, *unicodeString, *bytesString, *resultString,
   1595             *offsetsString, *resultOffsetsString,
   1596             *invalidCharsString, *resultInvalidUCharsString;
   1597 
   1598         unicodeString=s=buffer;
   1599         s=printUnicode(cc.unicode, cc.unicodeLength, unicodeString);
   1600         s=printBytes(cc.bytes, cc.bytesLength, bytesString=s);
   1601         s=printBytes(result, resultLength, resultString=s);
   1602         s=printOffsets(cc.offsets, cc.bytesLength, offsetsString=s);
   1603         s=printOffsets(resultOffsets, resultLength, resultOffsetsString=s);
   1604         s=printUnicode(cc.invalidUChars, cc.invalidLength, invalidCharsString=s);
   1605         s=printUnicode(resultInvalidUChars, resultInvalidLength, resultInvalidUCharsString=s);
   1606 
   1607         if((s-buffer)>(int32_t)sizeof(buffer)) {
   1608             errln("fromUnicode[%d](%s cb=\"%s\" fb=%d flush=%d %s) fatal error: checkFromUnicode() test output buffer overflow writing %d chars\n",
   1609                     cc.caseNr, cc.charset, cc.cbopt, cc.fallbacks, cc.finalFlush, name, (int)(s-buffer));
   1610             exit(1);
   1611         }
   1612 
   1613         errln("fromUnicode[%d](%s cb=\"%s\" fb=%d flush=%d %s) failed: %s\n"
   1614               "  unicode <%s>[%d]\n"
   1615               " expected <%s>[%d]\n"
   1616               "  result  <%s>[%d]\n"
   1617               " offsets         <%s>\n"
   1618               "  result offsets <%s>\n"
   1619               " error code expected %s got %s\n"
   1620               "  invalidChars expected <%s> got <%s>\n",
   1621               cc.caseNr, cc.charset, cc.cbopt, cc.fallbacks, cc.finalFlush, name, msg,
   1622               unicodeString, cc.unicodeLength,
   1623               bytesString, cc.bytesLength,
   1624               resultString, resultLength,
   1625               offsetsString,
   1626               resultOffsetsString,
   1627               u_errorName(cc.outErrorCode), u_errorName(resultErrorCode),
   1628               invalidCharsString, resultInvalidUCharsString);
   1629 
   1630         return FALSE;
   1631     }
   1632 }
   1633 
   1634 #endif /* #if !UCONFIG_NO_LEGACY_CONVERSION */
   1635