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      1 //  2016 and later: Unicode, Inc. and others.
      2 // License & terms of use: http://www.unicode.org/copyright.html
      3 /*
      4 *******************************************************************************
      5 *   Copyright (C) 2010-2014, International Business Machines
      6 *   Corporation and others.  All Rights Reserved.
      7 *******************************************************************************
      8 *   file name:  uts46test.cpp
      9 *   encoding:   UTF-8
     10 *   tab size:   8 (not used)
     11 *   indentation:4
     12 *
     13 *   created on: 2010may05
     14 *   created by: Markus W. Scherer
     15 */
     16 
     17 #include "unicode/utypes.h"
     18 
     19 #if !UCONFIG_NO_IDNA
     20 
     21 #include <string.h>
     22 #include "unicode/bytestream.h"
     23 #include "unicode/idna.h"
     24 #include "unicode/localpointer.h"
     25 #include "unicode/std_string.h"
     26 #include "unicode/stringpiece.h"
     27 #include "unicode/uidna.h"
     28 #include "unicode/unistr.h"
     29 #include "charstr.h"
     30 #include "cmemory.h"
     31 #include "intltest.h"
     32 #include "uparse.h"
     33 
     34 class UTS46Test : public IntlTest {
     35 public:
     36     UTS46Test() : trans(NULL), nontrans(NULL) {}
     37     virtual ~UTS46Test();
     38 
     39     void runIndexedTest(int32_t index, UBool exec, const char *&name, char *par=NULL);
     40     void TestAPI();
     41     void TestNotSTD3();
     42     void TestSomeCases();
     43     void IdnaTest();
     44 
     45     void checkIdnaTestResult(const char *line, const char *type,
     46                              const UnicodeString &expected, const UnicodeString &result,
     47                              const char *status, const IDNAInfo &info);
     48     void idnaTestOneLine(char *fields[][2], UErrorCode &errorCode);
     49 
     50 private:
     51     IDNA *trans, *nontrans;
     52 };
     53 
     54 extern IntlTest *createUTS46Test() {
     55     return new UTS46Test();
     56 }
     57 
     58 UTS46Test::~UTS46Test() {
     59     delete trans;
     60     delete nontrans;
     61 }
     62 
     63 void UTS46Test::runIndexedTest(int32_t index, UBool exec, const char *&name, char * /*par*/) {
     64     if(exec) {
     65         logln("TestSuite UTS46Test: ");
     66         if(trans==NULL) {
     67             IcuTestErrorCode errorCode(*this, "init/createUTS46Instance()");
     68             uint32_t commonOptions=
     69                 UIDNA_USE_STD3_RULES|UIDNA_CHECK_BIDI|
     70                 UIDNA_CHECK_CONTEXTJ|UIDNA_CHECK_CONTEXTO;
     71             trans=IDNA::createUTS46Instance(commonOptions, errorCode);
     72             nontrans=IDNA::createUTS46Instance(
     73                 commonOptions|
     74                 UIDNA_NONTRANSITIONAL_TO_ASCII|UIDNA_NONTRANSITIONAL_TO_UNICODE,
     75                 errorCode);
     76             if(errorCode.errDataIfFailureAndReset("createUTS46Instance()")) {
     77                 name="";
     78                 return;
     79             }
     80         }
     81     }
     82     TESTCASE_AUTO_BEGIN;
     83     TESTCASE_AUTO(TestAPI);
     84     TESTCASE_AUTO(TestNotSTD3);
     85     TESTCASE_AUTO(TestSomeCases);
     86     TESTCASE_AUTO(IdnaTest);
     87     TESTCASE_AUTO_END;
     88 }
     89 
     90 const uint32_t severeErrors=
     91     UIDNA_ERROR_LEADING_COMBINING_MARK|
     92     UIDNA_ERROR_DISALLOWED|
     93     UIDNA_ERROR_PUNYCODE|
     94     UIDNA_ERROR_LABEL_HAS_DOT|
     95     UIDNA_ERROR_INVALID_ACE_LABEL;
     96 
     97 static UBool isASCII(const UnicodeString &str) {
     98     const UChar *s=str.getBuffer();
     99     int32_t length=str.length();
    100     for(int32_t i=0; i<length; ++i) {
    101         if(s[i]>=0x80) {
    102             return FALSE;
    103         }
    104     }
    105     return TRUE;
    106 }
    107 
    108 class TestCheckedArrayByteSink : public CheckedArrayByteSink {
    109 public:
    110     TestCheckedArrayByteSink(char* outbuf, int32_t capacity)
    111             : CheckedArrayByteSink(outbuf, capacity), calledFlush(FALSE) {}
    112     virtual CheckedArrayByteSink& Reset() {
    113         CheckedArrayByteSink::Reset();
    114         calledFlush = FALSE;
    115         return *this;
    116     }
    117     virtual void Flush() { calledFlush = TRUE; }
    118     UBool calledFlush;
    119 };
    120 
    121 void UTS46Test::TestAPI() {
    122     UErrorCode errorCode=U_ZERO_ERROR;
    123     UnicodeString result;
    124     IDNAInfo info;
    125     UnicodeString input=UNICODE_STRING_SIMPLE("www.eXample.cOm");
    126     UnicodeString expected=UNICODE_STRING_SIMPLE("www.example.com");
    127     trans->nameToASCII(input, result, info, errorCode);
    128     if(U_FAILURE(errorCode) || info.hasErrors() || result!=expected) {
    129         errln("T.nameToASCII(www.example.com) info.errors=%04lx result matches=%d %s",
    130               (long)info.getErrors(), result==expected, u_errorName(errorCode));
    131     }
    132     errorCode=U_USELESS_COLLATOR_ERROR;
    133     trans->nameToUnicode(input, result, info, errorCode);
    134     if(errorCode!=U_USELESS_COLLATOR_ERROR || !result.isBogus()) {
    135         errln("T.nameToUnicode(U_FAILURE) did not preserve the errorCode "
    136               "or not result.setToBogus() - %s",
    137               u_errorName(errorCode));
    138     }
    139     errorCode=U_ZERO_ERROR;
    140     input.setToBogus();
    141     result=UNICODE_STRING_SIMPLE("quatsch");
    142     nontrans->labelToASCII(input, result, info, errorCode);
    143     if(errorCode!=U_ILLEGAL_ARGUMENT_ERROR || !result.isBogus()) {
    144         errln("N.labelToASCII(bogus) did not set illegal-argument-error "
    145               "or not result.setToBogus() - %s",
    146               u_errorName(errorCode));
    147     }
    148     errorCode=U_ZERO_ERROR;
    149     input=UNICODE_STRING_SIMPLE("xn--bcher.de-65a");
    150     expected=UNICODE_STRING_SIMPLE("xn--bcher\\uFFFDde-65a").unescape();
    151     nontrans->labelToASCII(input, result, info, errorCode);
    152     if( U_FAILURE(errorCode) ||
    153         info.getErrors()!=(UIDNA_ERROR_LABEL_HAS_DOT|UIDNA_ERROR_INVALID_ACE_LABEL) ||
    154         result!=expected
    155     ) {
    156         errln("N.labelToASCII(label-with-dot) failed with errors %04lx - %s",
    157               info.getErrors(), u_errorName(errorCode));
    158     }
    159     // UTF-8
    160     char buffer[100];
    161     TestCheckedArrayByteSink sink(buffer, UPRV_LENGTHOF(buffer));
    162     errorCode=U_ZERO_ERROR;
    163     nontrans->labelToUnicodeUTF8(StringPiece(NULL, 5), sink, info, errorCode);
    164     if(errorCode!=U_ILLEGAL_ARGUMENT_ERROR || sink.NumberOfBytesWritten()!=0) {
    165         errln("N.labelToUnicodeUTF8(StringPiece(NULL, 5)) did not set illegal-argument-error ",
    166               "or did output something - %s",
    167               u_errorName(errorCode));
    168     }
    169 
    170     sink.Reset();
    171     errorCode=U_ZERO_ERROR;
    172     nontrans->nameToASCII_UTF8(StringPiece(), sink, info, errorCode);
    173     if(U_FAILURE(errorCode) || sink.NumberOfBytesWritten()!=0 || !sink.calledFlush) {
    174         errln("N.nameToASCII_UTF8(empty) failed - %s",
    175               u_errorName(errorCode));
    176     }
    177 
    178     static const char s[]={ 0x61, (char)0xc3, (char)0x9f };
    179     sink.Reset();
    180     errorCode=U_USELESS_COLLATOR_ERROR;
    181     nontrans->nameToUnicodeUTF8(StringPiece(s, 3), sink, info, errorCode);
    182     if(errorCode!=U_USELESS_COLLATOR_ERROR || sink.NumberOfBytesWritten()!=0) {
    183         errln("N.nameToUnicode_UTF8(U_FAILURE) did not preserve the errorCode "
    184               "or did output something - %s",
    185               u_errorName(errorCode));
    186     }
    187 
    188     sink.Reset();
    189     errorCode=U_ZERO_ERROR;
    190     trans->labelToUnicodeUTF8(StringPiece(s, 3), sink, info, errorCode);
    191     if( U_FAILURE(errorCode) || sink.NumberOfBytesWritten()!=3 ||
    192         buffer[0]!=0x61 || buffer[1]!=0x73 || buffer[2]!=0x73 ||
    193         !sink.calledFlush
    194     ) {
    195         errln("T.labelToUnicodeUTF8(a sharp-s) failed - %s",
    196               u_errorName(errorCode));
    197     }
    198 
    199     sink.Reset();
    200     errorCode=U_ZERO_ERROR;
    201     // "eXampLe.cOm"
    202     static const char eX[]={ 0x65, 0x58, 0x61, 0x6d, 0x70, 0x4c, 0x65, 0x2e, 0x63, 0x4f, 0x6d, 0 };
    203     // "example.com"
    204     static const char ex[]={ 0x65, 0x78, 0x61, 0x6d, 0x70, 0x6c, 0x65, 0x2e, 0x63, 0x6f, 0x6d };
    205     trans->nameToUnicodeUTF8(eX, sink, info, errorCode);
    206     if( U_FAILURE(errorCode) || sink.NumberOfBytesWritten()!=11 ||
    207         0!=memcmp(ex, buffer, 11) || !sink.calledFlush
    208     ) {
    209         errln("T.nameToUnicodeUTF8(eXampLe.cOm) failed - %s",
    210               u_errorName(errorCode));
    211     }
    212 }
    213 
    214 void UTS46Test::TestNotSTD3() {
    215     IcuTestErrorCode errorCode(*this, "TestNotSTD3()");
    216     char buffer[400];
    217     LocalPointer<IDNA> not3(IDNA::createUTS46Instance(UIDNA_CHECK_BIDI, errorCode));
    218     if(errorCode.isFailure()) {
    219         return;
    220     }
    221     UnicodeString input=UNICODE_STRING_SIMPLE("\\u0000A_2+2=4\\u000A.e\\u00DFen.net").unescape();
    222     UnicodeString result;
    223     IDNAInfo info;
    224     if( not3->nameToUnicode(input, result, info, errorCode)!=
    225             UNICODE_STRING_SIMPLE("\\u0000a_2+2=4\\u000A.essen.net").unescape() ||
    226         info.hasErrors()
    227     ) {
    228         prettify(result).extract(0, 0x7fffffff, buffer, UPRV_LENGTHOF(buffer));
    229         errln("notSTD3.nameToUnicode(non-LDH ASCII) unexpected errors %04lx string %s",
    230               (long)info.getErrors(), buffer);
    231     }
    232     // A space (BiDi class WS) is not allowed in a BiDi domain name.
    233     input=UNICODE_STRING_SIMPLE("a z.xn--4db.edu");
    234     not3->nameToASCII(input, result, info, errorCode);
    235     if(result!=input || info.getErrors()!=UIDNA_ERROR_BIDI) {
    236         errln("notSTD3.nameToASCII(ASCII-with-space.alef.edu) failed");
    237     }
    238     // Characters that are canonically equivalent to sequences with non-LDH ASCII.
    239     input=UNICODE_STRING_SIMPLE("a\\u2260b\\u226Ec\\u226Fd").unescape();
    240     not3->nameToUnicode(input, result, info, errorCode);
    241     if(result!=input || info.hasErrors()) {
    242         prettify(result).extract(0, 0x7fffffff, buffer, UPRV_LENGTHOF(buffer));
    243         errln("notSTD3.nameToUnicode(equiv to non-LDH ASCII) unexpected errors %04lx string %s",
    244               (long)info.getErrors(), buffer);
    245     }
    246 }
    247 
    248 struct TestCase {
    249     // Input string and options string (Nontransitional/Transitional/Both).
    250     const char *s, *o;
    251     // Expected Unicode result string.
    252     const char *u;
    253     uint32_t errors;
    254 };
    255 
    256 static const TestCase testCases[]={
    257     { "www.eXample.cOm", "B",  // all ASCII
    258       "www.example.com", 0 },
    259     { "B\\u00FCcher.de", "B",  // u-umlaut
    260       "b\\u00FCcher.de", 0 },
    261     { "\\u00D6BB", "B",  // O-umlaut
    262       "\\u00F6bb", 0 },
    263     { "fa\\u00DF.de", "N",  // sharp s
    264       "fa\\u00DF.de", 0 },
    265     { "fa\\u00DF.de", "T",  // sharp s
    266       "fass.de", 0 },
    267     { "XN--fA-hia.dE", "B",  // sharp s in Punycode
    268       "fa\\u00DF.de", 0 },
    269     { "\\u03B2\\u03CC\\u03BB\\u03BF\\u03C2.com", "N",  // Greek with final sigma
    270       "\\u03B2\\u03CC\\u03BB\\u03BF\\u03C2.com", 0 },
    271     { "\\u03B2\\u03CC\\u03BB\\u03BF\\u03C2.com", "T",  // Greek with final sigma
    272       "\\u03B2\\u03CC\\u03BB\\u03BF\\u03C3.com", 0 },
    273     { "xn--nxasmm1c", "B",  // Greek with final sigma in Punycode
    274       "\\u03B2\\u03CC\\u03BB\\u03BF\\u03C2", 0 },
    275     { "www.\\u0DC1\\u0DCA\\u200D\\u0DBB\\u0DD3.com", "N",  // "Sri" in "Sri Lanka" has a ZWJ
    276       "www.\\u0DC1\\u0DCA\\u200D\\u0DBB\\u0DD3.com", 0 },
    277     { "www.\\u0DC1\\u0DCA\\u200D\\u0DBB\\u0DD3.com", "T",  // "Sri" in "Sri Lanka" has a ZWJ
    278       "www.\\u0DC1\\u0DCA\\u0DBB\\u0DD3.com", 0 },
    279     { "www.xn--10cl1a0b660p.com", "B",  // "Sri" in Punycode
    280       "www.\\u0DC1\\u0DCA\\u200D\\u0DBB\\u0DD3.com", 0 },
    281     { "\\u0646\\u0627\\u0645\\u0647\\u200C\\u0627\\u06CC", "N",  // ZWNJ
    282       "\\u0646\\u0627\\u0645\\u0647\\u200C\\u0627\\u06CC", 0 },
    283     { "\\u0646\\u0627\\u0645\\u0647\\u200C\\u0627\\u06CC", "T",  // ZWNJ
    284       "\\u0646\\u0627\\u0645\\u0647\\u0627\\u06CC", 0 },
    285     { "xn--mgba3gch31f060k.com", "B",  // ZWNJ in Punycode
    286       "\\u0646\\u0627\\u0645\\u0647\\u200C\\u0627\\u06CC.com", 0 },
    287     { "a.b\\uFF0Ec\\u3002d\\uFF61", "B",
    288       "a.b.c.d.", 0 },
    289     { "U\\u0308.xn--tda", "B",  // U+umlaut.u-umlaut
    290       "\\u00FC.\\u00FC", 0 },
    291     { "xn--u-ccb", "B",  // u+umlaut in Punycode
    292       "xn--u-ccb\\uFFFD", UIDNA_ERROR_INVALID_ACE_LABEL },
    293     { "a\\u2488com", "B",  // contains 1-dot
    294       "a\\uFFFDcom", UIDNA_ERROR_DISALLOWED },
    295     { "xn--a-ecp.ru", "B",  // contains 1-dot in Punycode
    296       "xn--a-ecp\\uFFFD.ru", UIDNA_ERROR_INVALID_ACE_LABEL },
    297     { "xn--0.pt", "B",  // invalid Punycode
    298       "xn--0\\uFFFD.pt", UIDNA_ERROR_PUNYCODE },
    299     { "xn--a.pt", "B",  // U+0080
    300       "xn--a\\uFFFD.pt", UIDNA_ERROR_INVALID_ACE_LABEL },
    301     { "xn--a-\\u00C4.pt", "B",  // invalid Punycode
    302       "xn--a-\\u00E4.pt", UIDNA_ERROR_PUNYCODE },
    303     { "\\u65E5\\u672C\\u8A9E\\u3002\\uFF2A\\uFF30", "B",  // Japanese with fullwidth ".jp"
    304       "\\u65E5\\u672C\\u8A9E.jp", 0 },
    305     { "\\u2615", "B", "\\u2615", 0 },  // Unicode 4.0 HOT BEVERAGE
    306     // some characters are disallowed because they are canonically equivalent
    307     // to sequences with non-LDH ASCII
    308     { "a\\u2260b\\u226Ec\\u226Fd", "B",
    309       "a\\uFFFDb\\uFFFDc\\uFFFDd", UIDNA_ERROR_DISALLOWED },
    310     // many deviation characters, test the special mapping code
    311     { "1.a\\u00DF\\u200C\\u200Db\\u200C\\u200Dc\\u00DF\\u00DF\\u00DF\\u00DFd"
    312       "\\u03C2\\u03C3\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DFe"
    313       "\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DFx"
    314       "\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DFy"
    315       "\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u0302\\u00DFz", "N",
    316       "1.a\\u00DF\\u200C\\u200Db\\u200C\\u200Dc\\u00DF\\u00DF\\u00DF\\u00DFd"
    317       "\\u03C2\\u03C3\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DFe"
    318       "\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DFx"
    319       "\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DFy"
    320       "\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u0302\\u00DFz",
    321       UIDNA_ERROR_LABEL_TOO_LONG|UIDNA_ERROR_CONTEXTJ },
    322     { "1.a\\u00DF\\u200C\\u200Db\\u200C\\u200Dc\\u00DF\\u00DF\\u00DF\\u00DFd"
    323       "\\u03C2\\u03C3\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DFe"
    324       "\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DFx"
    325       "\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DFy"
    326       "\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u00DF\\u0302\\u00DFz", "T",
    327       "1.assbcssssssssd"
    328       "\\u03C3\\u03C3sssssssssssssssse"
    329       "ssssssssssssssssssssx"
    330       "ssssssssssssssssssssy"
    331       "sssssssssssssss\\u015Dssz", UIDNA_ERROR_LABEL_TOO_LONG },
    332     // "xn--bss" with deviation characters
    333     { "\\u200Cx\\u200Dn\\u200C-\\u200D-b\\u00DF", "N",
    334       "\\u200Cx\\u200Dn\\u200C-\\u200D-b\\u00DF", UIDNA_ERROR_CONTEXTJ },
    335     { "\\u200Cx\\u200Dn\\u200C-\\u200D-b\\u00DF", "T",
    336       "\\u5919", 0 },
    337     // "xn--bssffl" written as:
    338     // 02E3 MODIFIER LETTER SMALL X
    339     // 034F COMBINING GRAPHEME JOINER (ignored)
    340     // 2115 DOUBLE-STRUCK CAPITAL N
    341     // 200B ZERO WIDTH SPACE (ignored)
    342     // FE63 SMALL HYPHEN-MINUS
    343     // 00AD SOFT HYPHEN (ignored)
    344     // FF0D FULLWIDTH HYPHEN-MINUS
    345     // 180C MONGOLIAN FREE VARIATION SELECTOR TWO (ignored)
    346     // 212C SCRIPT CAPITAL B
    347     // FE00 VARIATION SELECTOR-1 (ignored)
    348     // 017F LATIN SMALL LETTER LONG S
    349     // 2064 INVISIBLE PLUS (ignored)
    350     // 1D530 MATHEMATICAL FRAKTUR SMALL S
    351     // E01EF VARIATION SELECTOR-256 (ignored)
    352     // FB04 LATIN SMALL LIGATURE FFL
    353     { "\\u02E3\\u034F\\u2115\\u200B\\uFE63\\u00AD\\uFF0D\\u180C"
    354       "\\u212C\\uFE00\\u017F\\u2064\\U0001D530\\U000E01EF\\uFB04", "B",
    355       "\\u5921\\u591E\\u591C\\u5919", 0 },
    356     { "123456789012345678901234567890123456789012345678901234567890123."
    357       "123456789012345678901234567890123456789012345678901234567890123."
    358       "123456789012345678901234567890123456789012345678901234567890123."
    359       "1234567890123456789012345678901234567890123456789012345678901", "B",
    360       "123456789012345678901234567890123456789012345678901234567890123."
    361       "123456789012345678901234567890123456789012345678901234567890123."
    362       "123456789012345678901234567890123456789012345678901234567890123."
    363       "1234567890123456789012345678901234567890123456789012345678901", 0 },
    364     { "123456789012345678901234567890123456789012345678901234567890123."
    365       "123456789012345678901234567890123456789012345678901234567890123."
    366       "123456789012345678901234567890123456789012345678901234567890123."
    367       "1234567890123456789012345678901234567890123456789012345678901.", "B",
    368       "123456789012345678901234567890123456789012345678901234567890123."
    369       "123456789012345678901234567890123456789012345678901234567890123."
    370       "123456789012345678901234567890123456789012345678901234567890123."
    371       "1234567890123456789012345678901234567890123456789012345678901.", 0 },
    372     // Domain name >256 characters, forces slow path in UTF-8 processing.
    373     { "123456789012345678901234567890123456789012345678901234567890123."
    374       "123456789012345678901234567890123456789012345678901234567890123."
    375       "123456789012345678901234567890123456789012345678901234567890123."
    376       "123456789012345678901234567890123456789012345678901234567890123."
    377       "12345678901234567890123456789012345678901234567890123456789012", "B",
    378       "123456789012345678901234567890123456789012345678901234567890123."
    379       "123456789012345678901234567890123456789012345678901234567890123."
    380       "123456789012345678901234567890123456789012345678901234567890123."
    381       "123456789012345678901234567890123456789012345678901234567890123."
    382       "12345678901234567890123456789012345678901234567890123456789012",
    383       UIDNA_ERROR_DOMAIN_NAME_TOO_LONG },
    384     { "123456789012345678901234567890123456789012345678901234567890123."
    385       "123456789012345678901234567890123456789012345678901234567890123."
    386       "123456789012345678901234567890123456789012345678901234567890123."
    387       "123456789012345678901234567890123456789012345678901234567890123."
    388       "1234567890123456789012345678901234567890123456789\\u05D0", "B",
    389       "123456789012345678901234567890123456789012345678901234567890123."
    390       "123456789012345678901234567890123456789012345678901234567890123."
    391       "123456789012345678901234567890123456789012345678901234567890123."
    392       "123456789012345678901234567890123456789012345678901234567890123."
    393       "1234567890123456789012345678901234567890123456789\\u05D0",
    394       UIDNA_ERROR_DOMAIN_NAME_TOO_LONG|UIDNA_ERROR_BIDI },
    395     { "123456789012345678901234567890123456789012345678901234567890123."
    396       "1234567890123456789012345678901234567890123456789012345678901234."
    397       "123456789012345678901234567890123456789012345678901234567890123."
    398       "123456789012345678901234567890123456789012345678901234567890", "B",
    399       "123456789012345678901234567890123456789012345678901234567890123."
    400       "1234567890123456789012345678901234567890123456789012345678901234."
    401       "123456789012345678901234567890123456789012345678901234567890123."
    402       "123456789012345678901234567890123456789012345678901234567890",
    403       UIDNA_ERROR_LABEL_TOO_LONG },
    404     { "123456789012345678901234567890123456789012345678901234567890123."
    405       "1234567890123456789012345678901234567890123456789012345678901234."
    406       "123456789012345678901234567890123456789012345678901234567890123."
    407       "123456789012345678901234567890123456789012345678901234567890.", "B",
    408       "123456789012345678901234567890123456789012345678901234567890123."
    409       "1234567890123456789012345678901234567890123456789012345678901234."
    410       "123456789012345678901234567890123456789012345678901234567890123."
    411       "123456789012345678901234567890123456789012345678901234567890.",
    412       UIDNA_ERROR_LABEL_TOO_LONG },
    413     { "123456789012345678901234567890123456789012345678901234567890123."
    414       "1234567890123456789012345678901234567890123456789012345678901234."
    415       "123456789012345678901234567890123456789012345678901234567890123."
    416       "1234567890123456789012345678901234567890123456789012345678901", "B",
    417       "123456789012345678901234567890123456789012345678901234567890123."
    418       "1234567890123456789012345678901234567890123456789012345678901234."
    419       "123456789012345678901234567890123456789012345678901234567890123."
    420       "1234567890123456789012345678901234567890123456789012345678901",
    421       UIDNA_ERROR_LABEL_TOO_LONG|UIDNA_ERROR_DOMAIN_NAME_TOO_LONG },
    422     // label length 63: xn--1234567890123456789012345678901234567890123456789012345-9te
    423     { "\\u00E41234567890123456789012345678901234567890123456789012345", "B",
    424       "\\u00E41234567890123456789012345678901234567890123456789012345", 0 },
    425     { "1234567890\\u00E41234567890123456789012345678901234567890123456", "B",
    426       "1234567890\\u00E41234567890123456789012345678901234567890123456", UIDNA_ERROR_LABEL_TOO_LONG },
    427     { "123456789012345678901234567890123456789012345678901234567890123."
    428       "1234567890\\u00E4123456789012345678901234567890123456789012345."
    429       "123456789012345678901234567890123456789012345678901234567890123."
    430       "1234567890123456789012345678901234567890123456789012345678901", "B",
    431       "123456789012345678901234567890123456789012345678901234567890123."
    432       "1234567890\\u00E4123456789012345678901234567890123456789012345."
    433       "123456789012345678901234567890123456789012345678901234567890123."
    434       "1234567890123456789012345678901234567890123456789012345678901", 0 },
    435     { "123456789012345678901234567890123456789012345678901234567890123."
    436       "1234567890\\u00E4123456789012345678901234567890123456789012345."
    437       "123456789012345678901234567890123456789012345678901234567890123."
    438       "1234567890123456789012345678901234567890123456789012345678901.", "B",
    439       "123456789012345678901234567890123456789012345678901234567890123."
    440       "1234567890\\u00E4123456789012345678901234567890123456789012345."
    441       "123456789012345678901234567890123456789012345678901234567890123."
    442       "1234567890123456789012345678901234567890123456789012345678901.", 0 },
    443     { "123456789012345678901234567890123456789012345678901234567890123."
    444       "1234567890\\u00E4123456789012345678901234567890123456789012345."
    445       "123456789012345678901234567890123456789012345678901234567890123."
    446       "12345678901234567890123456789012345678901234567890123456789012", "B",
    447       "123456789012345678901234567890123456789012345678901234567890123."
    448       "1234567890\\u00E4123456789012345678901234567890123456789012345."
    449       "123456789012345678901234567890123456789012345678901234567890123."
    450       "12345678901234567890123456789012345678901234567890123456789012",
    451       UIDNA_ERROR_DOMAIN_NAME_TOO_LONG },
    452     { "123456789012345678901234567890123456789012345678901234567890123."
    453       "1234567890\\u00E41234567890123456789012345678901234567890123456."
    454       "123456789012345678901234567890123456789012345678901234567890123."
    455       "123456789012345678901234567890123456789012345678901234567890", "B",
    456       "123456789012345678901234567890123456789012345678901234567890123."
    457       "1234567890\\u00E41234567890123456789012345678901234567890123456."
    458       "123456789012345678901234567890123456789012345678901234567890123."
    459       "123456789012345678901234567890123456789012345678901234567890",
    460       UIDNA_ERROR_LABEL_TOO_LONG },
    461     { "123456789012345678901234567890123456789012345678901234567890123."
    462       "1234567890\\u00E41234567890123456789012345678901234567890123456."
    463       "123456789012345678901234567890123456789012345678901234567890123."
    464       "123456789012345678901234567890123456789012345678901234567890.", "B",
    465       "123456789012345678901234567890123456789012345678901234567890123."
    466       "1234567890\\u00E41234567890123456789012345678901234567890123456."
    467       "123456789012345678901234567890123456789012345678901234567890123."
    468       "123456789012345678901234567890123456789012345678901234567890.",
    469       UIDNA_ERROR_LABEL_TOO_LONG },
    470     { "123456789012345678901234567890123456789012345678901234567890123."
    471       "1234567890\\u00E41234567890123456789012345678901234567890123456."
    472       "123456789012345678901234567890123456789012345678901234567890123."
    473       "1234567890123456789012345678901234567890123456789012345678901", "B",
    474       "123456789012345678901234567890123456789012345678901234567890123."
    475       "1234567890\\u00E41234567890123456789012345678901234567890123456."
    476       "123456789012345678901234567890123456789012345678901234567890123."
    477       "1234567890123456789012345678901234567890123456789012345678901",
    478       UIDNA_ERROR_LABEL_TOO_LONG|UIDNA_ERROR_DOMAIN_NAME_TOO_LONG },
    479     // hyphen errors and empty-label errors
    480     // Ticket #10883: ToUnicode also checks for empty labels.
    481     { ".", "B", ".", UIDNA_ERROR_EMPTY_LABEL },
    482     { "\\uFF0E", "B", ".", UIDNA_ERROR_EMPTY_LABEL },
    483     // "xn---q----jra"=="-q--a-umlaut-"
    484     { "a.b..-q--a-.e", "B", "a.b..-q--a-.e",
    485       UIDNA_ERROR_EMPTY_LABEL|UIDNA_ERROR_LEADING_HYPHEN|UIDNA_ERROR_TRAILING_HYPHEN|
    486       UIDNA_ERROR_HYPHEN_3_4 },
    487     { "a.b..-q--\\u00E4-.e", "B", "a.b..-q--\\u00E4-.e",
    488       UIDNA_ERROR_EMPTY_LABEL|UIDNA_ERROR_LEADING_HYPHEN|UIDNA_ERROR_TRAILING_HYPHEN|
    489       UIDNA_ERROR_HYPHEN_3_4 },
    490     { "a.b..xn---q----jra.e", "B", "a.b..-q--\\u00E4-.e",
    491       UIDNA_ERROR_EMPTY_LABEL|UIDNA_ERROR_LEADING_HYPHEN|UIDNA_ERROR_TRAILING_HYPHEN|
    492       UIDNA_ERROR_HYPHEN_3_4 },
    493     { "a..c", "B", "a..c", UIDNA_ERROR_EMPTY_LABEL },
    494     { "a.xn--.c", "B", "a..c", UIDNA_ERROR_EMPTY_LABEL },
    495     { "a.-b.", "B", "a.-b.", UIDNA_ERROR_LEADING_HYPHEN },
    496     { "a.b-.c", "B", "a.b-.c", UIDNA_ERROR_TRAILING_HYPHEN },
    497     { "a.-.c", "B", "a.-.c", UIDNA_ERROR_LEADING_HYPHEN|UIDNA_ERROR_TRAILING_HYPHEN },
    498     { "a.bc--de.f", "B", "a.bc--de.f", UIDNA_ERROR_HYPHEN_3_4 },
    499     { "\\u00E4.\\u00AD.c", "B", "\\u00E4..c", UIDNA_ERROR_EMPTY_LABEL },
    500     { "\\u00E4.xn--.c", "B", "\\u00E4..c", UIDNA_ERROR_EMPTY_LABEL },
    501     { "\\u00E4.-b.", "B", "\\u00E4.-b.", UIDNA_ERROR_LEADING_HYPHEN },
    502     { "\\u00E4.b-.c", "B", "\\u00E4.b-.c", UIDNA_ERROR_TRAILING_HYPHEN },
    503     { "\\u00E4.-.c", "B", "\\u00E4.-.c", UIDNA_ERROR_LEADING_HYPHEN|UIDNA_ERROR_TRAILING_HYPHEN },
    504     { "\\u00E4.bc--de.f", "B", "\\u00E4.bc--de.f", UIDNA_ERROR_HYPHEN_3_4 },
    505     { "a.b.\\u0308c.d", "B", "a.b.\\uFFFDc.d", UIDNA_ERROR_LEADING_COMBINING_MARK },
    506     { "a.b.xn--c-bcb.d", "B",
    507       "a.b.xn--c-bcb\\uFFFD.d", UIDNA_ERROR_LEADING_COMBINING_MARK|UIDNA_ERROR_INVALID_ACE_LABEL },
    508     // BiDi
    509     { "A0", "B", "a0", 0 },
    510     { "0A", "B", "0a", 0 },  // all-LTR is ok to start with a digit (EN)
    511     { "0A.\\u05D0", "B",  // ASCII label does not start with L/R/AL
    512       "0a.\\u05D0", UIDNA_ERROR_BIDI },
    513     { "c.xn--0-eha.xn--4db", "B",  // 2nd label does not start with L/R/AL
    514       "c.0\\u00FC.\\u05D0", UIDNA_ERROR_BIDI },
    515     { "b-.\\u05D0", "B",  // label does not end with L/EN
    516       "b-.\\u05D0", UIDNA_ERROR_TRAILING_HYPHEN|UIDNA_ERROR_BIDI },
    517     { "d.xn----dha.xn--4db", "B",  // 2nd label does not end with L/EN
    518       "d.\\u00FC-.\\u05D0", UIDNA_ERROR_TRAILING_HYPHEN|UIDNA_ERROR_BIDI },
    519     { "a\\u05D0", "B", "a\\u05D0", UIDNA_ERROR_BIDI },  // first dir != last dir
    520     { "\\u05D0\\u05C7", "B", "\\u05D0\\u05C7", 0 },
    521     { "\\u05D09\\u05C7", "B", "\\u05D09\\u05C7", 0 },
    522     { "\\u05D0a\\u05C7", "B", "\\u05D0a\\u05C7", UIDNA_ERROR_BIDI },  // first dir != last dir
    523     { "\\u05D0\\u05EA", "B", "\\u05D0\\u05EA", 0 },
    524     { "\\u05D0\\u05F3\\u05EA", "B", "\\u05D0\\u05F3\\u05EA", 0 },
    525     { "a\\u05D0Tz", "B", "a\\u05D0tz", UIDNA_ERROR_BIDI },  // mixed dir
    526     { "\\u05D0T\\u05EA", "B", "\\u05D0t\\u05EA", UIDNA_ERROR_BIDI },  // mixed dir
    527     { "\\u05D07\\u05EA", "B", "\\u05D07\\u05EA", 0 },
    528     { "\\u05D0\\u0667\\u05EA", "B", "\\u05D0\\u0667\\u05EA", 0 },  // Arabic 7 in the middle
    529     { "a7\\u0667z", "B", "a7\\u0667z", UIDNA_ERROR_BIDI },  // AN digit in LTR
    530     { "a7\\u0667", "B", "a7\\u0667", UIDNA_ERROR_BIDI },  // AN digit in LTR
    531     { "\\u05D07\\u0667\\u05EA", "B",  // mixed EN/AN digits in RTL
    532       "\\u05D07\\u0667\\u05EA", UIDNA_ERROR_BIDI },
    533     { "\\u05D07\\u0667", "B",  // mixed EN/AN digits in RTL
    534       "\\u05D07\\u0667", UIDNA_ERROR_BIDI },
    535     // ZWJ
    536     { "\\u0BB9\\u0BCD\\u200D", "N", "\\u0BB9\\u0BCD\\u200D", 0 },  // Virama+ZWJ
    537     { "\\u0BB9\\u200D", "N", "\\u0BB9\\u200D", UIDNA_ERROR_CONTEXTJ },  // no Virama
    538     { "\\u200D", "N", "\\u200D", UIDNA_ERROR_CONTEXTJ },  // no Virama
    539     // ZWNJ
    540     { "\\u0BB9\\u0BCD\\u200C", "N", "\\u0BB9\\u0BCD\\u200C", 0 },  // Virama+ZWNJ
    541     { "\\u0BB9\\u200C", "N", "\\u0BB9\\u200C", UIDNA_ERROR_CONTEXTJ },  // no Virama
    542     { "\\u200C", "N", "\\u200C", UIDNA_ERROR_CONTEXTJ },  // no Virama
    543     { "\\u0644\\u0670\\u200C\\u06ED\\u06EF", "N",  // Joining types D T ZWNJ T R
    544       "\\u0644\\u0670\\u200C\\u06ED\\u06EF", 0 },
    545     { "\\u0644\\u0670\\u200C\\u06EF", "N",  // D T ZWNJ R
    546       "\\u0644\\u0670\\u200C\\u06EF", 0 },
    547     { "\\u0644\\u200C\\u06ED\\u06EF", "N",  // D ZWNJ T R
    548       "\\u0644\\u200C\\u06ED\\u06EF", 0 },
    549     { "\\u0644\\u200C\\u06EF", "N",  // D ZWNJ R
    550       "\\u0644\\u200C\\u06EF", 0 },
    551     { "\\u0644\\u0670\\u200C\\u06ED", "N",  // D T ZWNJ T
    552       "\\u0644\\u0670\\u200C\\u06ED", UIDNA_ERROR_BIDI|UIDNA_ERROR_CONTEXTJ },
    553     { "\\u06EF\\u200C\\u06EF", "N",  // R ZWNJ R
    554       "\\u06EF\\u200C\\u06EF", UIDNA_ERROR_CONTEXTJ },
    555     { "\\u0644\\u200C", "N",  // D ZWNJ
    556       "\\u0644\\u200C", UIDNA_ERROR_BIDI|UIDNA_ERROR_CONTEXTJ },
    557     { "\\u0660\\u0661", "B",  // Arabic-Indic Digits alone
    558       "\\u0660\\u0661", UIDNA_ERROR_BIDI },
    559     { "\\u06F0\\u06F1", "B",  // Extended Arabic-Indic Digits alone
    560       "\\u06F0\\u06F1", 0 },
    561     { "\\u0660\\u06F1", "B",  // Mixed Arabic-Indic Digits
    562       "\\u0660\\u06F1", UIDNA_ERROR_CONTEXTO_DIGITS|UIDNA_ERROR_BIDI },
    563     // All of the CONTEXTO "Would otherwise have been DISALLOWED" characters
    564     // in their correct contexts,
    565     // then each in incorrect context.
    566     { "l\\u00B7l\\u4E00\\u0375\\u03B1\\u05D0\\u05F3\\u05F4\\u30FB", "B",
    567       "l\\u00B7l\\u4E00\\u0375\\u03B1\\u05D0\\u05F3\\u05F4\\u30FB", UIDNA_ERROR_BIDI },
    568     { "l\\u00B7", "B",
    569       "l\\u00B7", UIDNA_ERROR_CONTEXTO_PUNCTUATION },
    570     { "\\u00B7l", "B",
    571       "\\u00B7l", UIDNA_ERROR_CONTEXTO_PUNCTUATION },
    572     { "\\u0375", "B",
    573       "\\u0375", UIDNA_ERROR_CONTEXTO_PUNCTUATION },
    574     { "\\u03B1\\u05F3", "B",
    575       "\\u03B1\\u05F3", UIDNA_ERROR_CONTEXTO_PUNCTUATION|UIDNA_ERROR_BIDI },
    576     { "\\u05F4", "B",
    577       "\\u05F4", UIDNA_ERROR_CONTEXTO_PUNCTUATION },
    578     { "l\\u30FB", "B",
    579       "l\\u30FB", UIDNA_ERROR_CONTEXTO_PUNCTUATION },
    580     // Ticket #8137: UTS #46 toUnicode() fails with non-ASCII labels that turn
    581     // into 15 characters (UChars).
    582     // The bug was in u_strFromPunycode() which did not write the last character
    583     // if it just so fit into the end of the destination buffer.
    584     // The UTS #46 code gives a default-capacity UnicodeString as the destination buffer,
    585     // and the internal UnicodeString capacity is currently 15 UChars on 64-bit machines
    586     // but 13 on 32-bit machines.
    587     // Label with 15 UChars, for 64-bit-machine testing:
    588     { "aaaaaaaaaaaaa\\u00FCa.de", "B", "aaaaaaaaaaaaa\\u00FCa.de", 0 },
    589     { "xn--aaaaaaaaaaaaaa-ssb.de", "B", "aaaaaaaaaaaaa\\u00FCa.de", 0 },
    590     { "abschlu\\u00DFpr\\u00FCfung.de", "N", "abschlu\\u00DFpr\\u00FCfung.de", 0 },
    591     { "xn--abschluprfung-hdb15b.de", "B", "abschlu\\u00DFpr\\u00FCfung.de", 0 },
    592     // Label with 13 UChars, for 32-bit-machine testing:
    593     { "xn--aaaaaaaaaaaa-nlb.de", "B", "aaaaaaaaaaa\\u00FCa.de", 0 },
    594     { "xn--schluprfung-z6a39a.de", "B", "schlu\\u00DFpr\\u00FCfung.de", 0 },
    595     // { "", "B",
    596     //   "", 0 },
    597 };
    598 
    599 void UTS46Test::TestSomeCases() {
    600     IcuTestErrorCode errorCode(*this, "TestSomeCases");
    601     char buffer[400], buffer2[400];
    602     int32_t i;
    603     for(i=0; i<UPRV_LENGTHOF(testCases); ++i) {
    604         const TestCase &testCase=testCases[i];
    605         UnicodeString input(ctou(testCase.s));
    606         UnicodeString expected(ctou(testCase.u));
    607         // ToASCII/ToUnicode, transitional/nontransitional
    608         UnicodeString aT, uT, aN, uN;
    609         IDNAInfo aTInfo, uTInfo, aNInfo, uNInfo;
    610         trans->nameToASCII(input, aT, aTInfo, errorCode);
    611         trans->nameToUnicode(input, uT, uTInfo, errorCode);
    612         nontrans->nameToASCII(input, aN, aNInfo, errorCode);
    613         nontrans->nameToUnicode(input, uN, uNInfo, errorCode);
    614         if(errorCode.errIfFailureAndReset("first-level processing [%d/%s] %s",
    615                                           (int)i, testCase.o, testCase.s)
    616         ) {
    617             continue;
    618         }
    619         // ToUnicode does not set length-overflow errors.
    620         uint32_t uniErrors=testCase.errors&~
    621             (UIDNA_ERROR_LABEL_TOO_LONG|
    622              UIDNA_ERROR_DOMAIN_NAME_TOO_LONG);
    623         char mode=testCase.o[0];
    624         if(mode=='B' || mode=='N') {
    625             if(uNInfo.getErrors()!=uniErrors) {
    626                 errln("N.nameToUnicode([%d] %s) unexpected errors %04lx",
    627                       (int)i, testCase.s, (long)uNInfo.getErrors());
    628                 continue;
    629             }
    630             if(uN!=expected) {
    631                 prettify(uN).extract(0, 0x7fffffff, buffer, UPRV_LENGTHOF(buffer));
    632                 errln("N.nameToUnicode([%d] %s) unexpected string %s",
    633                       (int)i, testCase.s, buffer);
    634                 continue;
    635             }
    636             if(aNInfo.getErrors()!=testCase.errors) {
    637                 errln("N.nameToASCII([%d] %s) unexpected errors %04lx",
    638                       (int)i, testCase.s, (long)aNInfo.getErrors());
    639                 continue;
    640             }
    641         }
    642         if(mode=='B' || mode=='T') {
    643             if(uTInfo.getErrors()!=uniErrors) {
    644                 errln("T.nameToUnicode([%d] %s) unexpected errors %04lx",
    645                       (int)i, testCase.s, (long)uTInfo.getErrors());
    646                 continue;
    647             }
    648             if(uT!=expected) {
    649                 prettify(uT).extract(0, 0x7fffffff, buffer, UPRV_LENGTHOF(buffer));
    650                 errln("T.nameToUnicode([%d] %s) unexpected string %s",
    651                       (int)i, testCase.s, buffer);
    652                 continue;
    653             }
    654             if(aTInfo.getErrors()!=testCase.errors) {
    655                 errln("T.nameToASCII([%d] %s) unexpected errors %04lx",
    656                       (int)i, testCase.s, (long)aTInfo.getErrors());
    657                 continue;
    658             }
    659         }
    660         // ToASCII is all-ASCII if no severe errors
    661         if((aNInfo.getErrors()&severeErrors)==0 && !isASCII(aN)) {
    662             prettify(aN).extract(0, 0x7fffffff, buffer, UPRV_LENGTHOF(buffer));
    663             errln("N.nameToASCII([%d] %s) (errors %04lx) result is not ASCII %s",
    664                   (int)i, testCase.s, aNInfo.getErrors(), buffer);
    665             continue;
    666         }
    667         if((aTInfo.getErrors()&severeErrors)==0 && !isASCII(aT)) {
    668             prettify(aT).extract(0, 0x7fffffff, buffer, UPRV_LENGTHOF(buffer));
    669             errln("T.nameToASCII([%d] %s) (errors %04lx) result is not ASCII %s",
    670                   (int)i, testCase.s, aTInfo.getErrors(), buffer);
    671             continue;
    672         }
    673         if(verbose) {
    674             char m= mode=='B' ? mode : 'N';
    675             prettify(aN).extract(0, 0x7fffffff, buffer, UPRV_LENGTHOF(buffer));
    676             logln("%c.nameToASCII([%d] %s) (errors %04lx) result string: %s",
    677                   m, (int)i, testCase.s, aNInfo.getErrors(), buffer);
    678             if(mode!='B') {
    679                 prettify(aT).extract(0, 0x7fffffff, buffer, UPRV_LENGTHOF(buffer));
    680                 logln("T.nameToASCII([%d] %s) (errors %04lx) result string: %s",
    681                       (int)i, testCase.s, aTInfo.getErrors(), buffer);
    682             }
    683         }
    684         // second-level processing
    685         UnicodeString aTuN, uTaN, aNuN, uNaN;
    686         IDNAInfo aTuNInfo, uTaNInfo, aNuNInfo, uNaNInfo;
    687         nontrans->nameToUnicode(aT, aTuN, aTuNInfo, errorCode);
    688         nontrans->nameToASCII(uT, uTaN, uTaNInfo, errorCode);
    689         nontrans->nameToUnicode(aN, aNuN, aNuNInfo, errorCode);
    690         nontrans->nameToASCII(uN, uNaN, uNaNInfo, errorCode);
    691         if(errorCode.errIfFailureAndReset("second-level processing [%d/%s] %s",
    692                                           (int)i, testCase.o, testCase.s)
    693         ) {
    694             continue;
    695         }
    696         if(aN!=uNaN) {
    697             prettify(aN).extract(0, 0x7fffffff, buffer, UPRV_LENGTHOF(buffer));
    698             prettify(uNaN).extract(0, 0x7fffffff, buffer2, UPRV_LENGTHOF(buffer2));
    699             errln("N.nameToASCII([%d] %s)!=N.nameToUnicode().N.nameToASCII() "
    700                   "(errors %04lx) %s vs. %s",
    701                   (int)i, testCase.s, aNInfo.getErrors(), buffer, buffer2);
    702             continue;
    703         }
    704         if(aT!=uTaN) {
    705             prettify(aT).extract(0, 0x7fffffff, buffer, UPRV_LENGTHOF(buffer));
    706             prettify(uTaN).extract(0, 0x7fffffff, buffer2, UPRV_LENGTHOF(buffer2));
    707             errln("T.nameToASCII([%d] %s)!=T.nameToUnicode().N.nameToASCII() "
    708                   "(errors %04lx) %s vs. %s",
    709                   (int)i, testCase.s, aNInfo.getErrors(), buffer, buffer2);
    710             continue;
    711         }
    712         if(uN!=aNuN) {
    713             prettify(uN).extract(0, 0x7fffffff, buffer, UPRV_LENGTHOF(buffer));
    714             prettify(aNuN).extract(0, 0x7fffffff, buffer2, UPRV_LENGTHOF(buffer2));
    715             errln("N.nameToUnicode([%d] %s)!=N.nameToASCII().N.nameToUnicode() "
    716                   "(errors %04lx) %s vs. %s",
    717                   (int)i, testCase.s, uNInfo.getErrors(), buffer, buffer2);
    718             continue;
    719         }
    720         if(uT!=aTuN) {
    721             prettify(uT).extract(0, 0x7fffffff, buffer, UPRV_LENGTHOF(buffer));
    722             prettify(aTuN).extract(0, 0x7fffffff, buffer2, UPRV_LENGTHOF(buffer2));
    723             errln("T.nameToUnicode([%d] %s)!=T.nameToASCII().N.nameToUnicode() "
    724                   "(errors %04lx) %s vs. %s",
    725                   (int)i, testCase.s, uNInfo.getErrors(), buffer, buffer2);
    726             continue;
    727         }
    728         // labelToUnicode
    729         UnicodeString aTL, uTL, aNL, uNL;
    730         IDNAInfo aTLInfo, uTLInfo, aNLInfo, uNLInfo;
    731         trans->labelToASCII(input, aTL, aTLInfo, errorCode);
    732         trans->labelToUnicode(input, uTL, uTLInfo, errorCode);
    733         nontrans->labelToASCII(input, aNL, aNLInfo, errorCode);
    734         nontrans->labelToUnicode(input, uNL, uNLInfo, errorCode);
    735         if(errorCode.errIfFailureAndReset("labelToXYZ processing [%d/%s] %s",
    736                                           (int)i, testCase.o, testCase.s)
    737         ) {
    738             continue;
    739         }
    740         if(aN.indexOf((UChar)0x2e)<0) {
    741             if(aN!=aNL || aNInfo.getErrors()!=aNLInfo.getErrors()) {
    742                 prettify(aN).extract(0, 0x7fffffff, buffer, UPRV_LENGTHOF(buffer));
    743                 prettify(aNL).extract(0, 0x7fffffff, buffer2, UPRV_LENGTHOF(buffer2));
    744                 errln("N.nameToASCII([%d] %s)!=N.labelToASCII() "
    745                       "(errors %04lx vs %04lx) %s vs. %s",
    746                       (int)i, testCase.s, aNInfo.getErrors(), aNLInfo.getErrors(), buffer, buffer2);
    747                 continue;
    748             }
    749         } else {
    750             if((aNLInfo.getErrors()&UIDNA_ERROR_LABEL_HAS_DOT)==0) {
    751                 errln("N.labelToASCII([%d] %s) errors %04lx missing UIDNA_ERROR_LABEL_HAS_DOT",
    752                       (int)i, testCase.s, (long)aNLInfo.getErrors());
    753                 continue;
    754             }
    755         }
    756         if(aT.indexOf((UChar)0x2e)<0) {
    757             if(aT!=aTL || aTInfo.getErrors()!=aTLInfo.getErrors()) {
    758                 prettify(aT).extract(0, 0x7fffffff, buffer, UPRV_LENGTHOF(buffer));
    759                 prettify(aTL).extract(0, 0x7fffffff, buffer2, UPRV_LENGTHOF(buffer2));
    760                 errln("T.nameToASCII([%d] %s)!=T.labelToASCII() "
    761                       "(errors %04lx vs %04lx) %s vs. %s",
    762                       (int)i, testCase.s, aTInfo.getErrors(), aTLInfo.getErrors(), buffer, buffer2);
    763                 continue;
    764             }
    765         } else {
    766             if((aTLInfo.getErrors()&UIDNA_ERROR_LABEL_HAS_DOT)==0) {
    767                 errln("T.labelToASCII([%d] %s) errors %04lx missing UIDNA_ERROR_LABEL_HAS_DOT",
    768                       (int)i, testCase.s, (long)aTLInfo.getErrors());
    769                 continue;
    770             }
    771         }
    772         if(uN.indexOf((UChar)0x2e)<0) {
    773             if(uN!=uNL || uNInfo.getErrors()!=uNLInfo.getErrors()) {
    774                 prettify(uN).extract(0, 0x7fffffff, buffer, UPRV_LENGTHOF(buffer));
    775                 prettify(uNL).extract(0, 0x7fffffff, buffer2, UPRV_LENGTHOF(buffer2));
    776                 errln("N.nameToUnicode([%d] %s)!=N.labelToUnicode() "
    777                       "(errors %04lx vs %04lx) %s vs. %s",
    778                       (int)i, testCase.s, uNInfo.getErrors(), uNLInfo.getErrors(), buffer, buffer2);
    779                 continue;
    780             }
    781         } else {
    782             if((uNLInfo.getErrors()&UIDNA_ERROR_LABEL_HAS_DOT)==0) {
    783                 errln("N.labelToUnicode([%d] %s) errors %04lx missing UIDNA_ERROR_LABEL_HAS_DOT",
    784                       (int)i, testCase.s, (long)uNLInfo.getErrors());
    785                 continue;
    786             }
    787         }
    788         if(uT.indexOf((UChar)0x2e)<0) {
    789             if(uT!=uTL || uTInfo.getErrors()!=uTLInfo.getErrors()) {
    790                 prettify(uT).extract(0, 0x7fffffff, buffer, UPRV_LENGTHOF(buffer));
    791                 prettify(uTL).extract(0, 0x7fffffff, buffer2, UPRV_LENGTHOF(buffer2));
    792                 errln("T.nameToUnicode([%d] %s)!=T.labelToUnicode() "
    793                       "(errors %04lx vs %04lx) %s vs. %s",
    794                       (int)i, testCase.s, uTInfo.getErrors(), uTLInfo.getErrors(), buffer, buffer2);
    795                 continue;
    796             }
    797         } else {
    798             if((uTLInfo.getErrors()&UIDNA_ERROR_LABEL_HAS_DOT)==0) {
    799                 errln("T.labelToUnicode([%d] %s) errors %04lx missing UIDNA_ERROR_LABEL_HAS_DOT",
    800                       (int)i, testCase.s, (long)uTLInfo.getErrors());
    801                 continue;
    802             }
    803         }
    804         // Differences between transitional and nontransitional processing
    805         if(mode=='B') {
    806             if( aNInfo.isTransitionalDifferent() ||
    807                 aTInfo.isTransitionalDifferent() ||
    808                 uNInfo.isTransitionalDifferent() ||
    809                 uTInfo.isTransitionalDifferent() ||
    810                 aNLInfo.isTransitionalDifferent() ||
    811                 aTLInfo.isTransitionalDifferent() ||
    812                 uNLInfo.isTransitionalDifferent() ||
    813                 uTLInfo.isTransitionalDifferent()
    814             ) {
    815                 errln("B.process([%d] %s) isTransitionalDifferent()", (int)i, testCase.s);
    816                 continue;
    817             }
    818             if( aN!=aT || uN!=uT || aNL!=aTL || uNL!=uTL ||
    819                 aNInfo.getErrors()!=aTInfo.getErrors() || uNInfo.getErrors()!=uTInfo.getErrors() ||
    820                 aNLInfo.getErrors()!=aTLInfo.getErrors() || uNLInfo.getErrors()!=uTLInfo.getErrors()
    821             ) {
    822                 errln("N.process([%d] %s) vs. T.process() different errors or result strings",
    823                       (int)i, testCase.s);
    824                 continue;
    825             }
    826         } else {
    827             if( !aNInfo.isTransitionalDifferent() ||
    828                 !aTInfo.isTransitionalDifferent() ||
    829                 !uNInfo.isTransitionalDifferent() ||
    830                 !uTInfo.isTransitionalDifferent() ||
    831                 !aNLInfo.isTransitionalDifferent() ||
    832                 !aTLInfo.isTransitionalDifferent() ||
    833                 !uNLInfo.isTransitionalDifferent() ||
    834                 !uTLInfo.isTransitionalDifferent()
    835             ) {
    836                 errln("%s.process([%d] %s) !isTransitionalDifferent()",
    837                       testCase.o, (int)i, testCase.s);
    838                 continue;
    839             }
    840             if(aN==aT || uN==uT || aNL==aTL || uNL==uTL) {
    841                 errln("N.process([%d] %s) vs. T.process() same result strings",
    842                       (int)i, testCase.s);
    843                 continue;
    844             }
    845         }
    846         // UTF-8
    847         std::string input8, aT8, uT8, aN8, uN8;
    848         StringByteSink<std::string> aT8Sink(&aT8), uT8Sink(&uT8), aN8Sink(&aN8), uN8Sink(&uN8);
    849         IDNAInfo aT8Info, uT8Info, aN8Info, uN8Info;
    850         input.toUTF8String(input8);
    851         trans->nameToASCII_UTF8(input8, aT8Sink, aT8Info, errorCode);
    852         trans->nameToUnicodeUTF8(input8, uT8Sink, uT8Info, errorCode);
    853         nontrans->nameToASCII_UTF8(input8, aN8Sink, aN8Info, errorCode);
    854         nontrans->nameToUnicodeUTF8(input8, uN8Sink, uN8Info, errorCode);
    855         if(errorCode.errIfFailureAndReset("UTF-8 processing [%d/%s] %s",
    856                                           (int)i, testCase.o, testCase.s)
    857         ) {
    858             continue;
    859         }
    860         UnicodeString aT16(UnicodeString::fromUTF8(aT8));
    861         UnicodeString uT16(UnicodeString::fromUTF8(uT8));
    862         UnicodeString aN16(UnicodeString::fromUTF8(aN8));
    863         UnicodeString uN16(UnicodeString::fromUTF8(uN8));
    864         if( aN8Info.getErrors()!=aNInfo.getErrors() ||
    865             uN8Info.getErrors()!=uNInfo.getErrors()
    866         ) {
    867             errln("N.xyzUTF8([%d] %s) vs. UTF-16 processing different errors %04lx vs. %04lx",
    868                   (int)i, testCase.s,
    869                   (long)aN8Info.getErrors(), (long)aNInfo.getErrors());
    870             continue;
    871         }
    872         if( aT8Info.getErrors()!=aTInfo.getErrors() ||
    873             uT8Info.getErrors()!=uTInfo.getErrors()
    874         ) {
    875             errln("T.xyzUTF8([%d] %s) vs. UTF-16 processing different errors %04lx vs. %04lx",
    876                   (int)i, testCase.s,
    877                   (long)aT8Info.getErrors(), (long)aTInfo.getErrors());
    878             continue;
    879         }
    880         if(aT16!=aT || uT16!=uT || aN16!=aN || uN16!=uN) {
    881             errln("%s.xyzUTF8([%d] %s) vs. UTF-16 processing different string results",
    882                   testCase.o, (int)i, testCase.s, (long)aTInfo.getErrors());
    883             continue;
    884         }
    885         if( aT8Info.isTransitionalDifferent()!=aTInfo.isTransitionalDifferent() ||
    886             uT8Info.isTransitionalDifferent()!=uTInfo.isTransitionalDifferent() ||
    887             aN8Info.isTransitionalDifferent()!=aNInfo.isTransitionalDifferent() ||
    888             uN8Info.isTransitionalDifferent()!=uNInfo.isTransitionalDifferent()
    889         ) {
    890             errln("%s.xyzUTF8([%d] %s) vs. UTF-16 processing different isTransitionalDifferent()",
    891                   testCase.o, (int)i, testCase.s);
    892             continue;
    893         }
    894     }
    895 }
    896 
    897 namespace {
    898 
    899 const int32_t kNumFields = 7;
    900 
    901 void U_CALLCONV
    902 idnaTestLineFn(void *context,
    903                char *fields[][2], int32_t /* fieldCount */,
    904                UErrorCode *pErrorCode) {
    905     reinterpret_cast<UTS46Test *>(context)->idnaTestOneLine(fields, *pErrorCode);
    906 }
    907 
    908 UnicodeString s16FromField(char *(&field)[2]) {
    909     int32_t length = (int32_t)(field[1] - field[0]);
    910     return UnicodeString::fromUTF8(StringPiece(field[0], length)).trim().unescape();
    911 }
    912 
    913 std::string statusFromField(char *(&field)[2]) {
    914     const char *start = u_skipWhitespace(field[0]);
    915     std::string status;
    916     if (start != field[1]) {
    917         int32_t length = (int32_t)(field[1] - start);
    918         while (length > 0 && (start[length - 1] == u' ' || start[length - 1] == u'\t')) {
    919             --length;
    920         }
    921         status.assign(start, length);
    922     }
    923     return status;
    924 }
    925 
    926 }  // namespace
    927 
    928 void UTS46Test::checkIdnaTestResult(const char *line, const char *type,
    929                                     const UnicodeString &expected, const UnicodeString &result,
    930                                     const char *status, const IDNAInfo &info) {
    931     // An error in toUnicode or toASCII is indicated by a value in square brackets,
    932     // such as "[B5 B6]".
    933     UBool expectedHasErrors = FALSE;
    934     if (*status != 0) {
    935         if (*status != u'[') {
    936             errln("%s  status field does not start with '[': %s\n    %s", type, status, line);
    937         }
    938         if (strcmp(status, u8"[]") != 0) {
    939             expectedHasErrors = TRUE;
    940         }
    941     }
    942     if (expectedHasErrors != info.hasErrors()) {
    943         errln("%s  expected errors %s %d != %d = actual has errors: %04lx\n    %s",
    944               type, status, expectedHasErrors, info.hasErrors(), (long)info.getErrors(), line);
    945     }
    946     if (!expectedHasErrors && expected != result) {
    947         errln("%s  expected != actual\n    %s", type, line);
    948         errln(UnicodeString(u"    ") + expected);
    949         errln(UnicodeString(u"    ") + result);
    950     }
    951 }
    952 
    953 void UTS46Test::idnaTestOneLine(char *fields[][2], UErrorCode &errorCode) {
    954     // IdnaTestV2.txt (since Unicode 11)
    955     // Column 1: source
    956     // The source string to be tested
    957     UnicodeString source = s16FromField(fields[0]);
    958 
    959     // Column 2: toUnicode
    960     // The result of applying toUnicode to the source, with Transitional_Processing=false.
    961     // A blank value means the same as the source value.
    962     UnicodeString toUnicode = s16FromField(fields[1]);
    963     if (toUnicode.isEmpty()) {
    964         toUnicode = source;
    965     }
    966 
    967     // Column 3: toUnicodeStatus
    968     // A set of status codes, each corresponding to a particular test.
    969     // A blank value means [].
    970     std::string toUnicodeStatus = statusFromField(fields[2]);
    971 
    972     // Column 4: toAsciiN
    973     // The result of applying toASCII to the source, with Transitional_Processing=false.
    974     // A blank value means the same as the toUnicode value.
    975     UnicodeString toAsciiN = s16FromField(fields[3]);
    976     if (toAsciiN.isEmpty()) {
    977         toAsciiN = toUnicode;
    978     }
    979 
    980     // Column 5: toAsciiNStatus
    981     // A set of status codes, each corresponding to a particular test.
    982     // A blank value means the same as the toUnicodeStatus value.
    983     std::string toAsciiNStatus = statusFromField(fields[4]);
    984     if (toAsciiNStatus.empty()) {
    985         toAsciiNStatus = toUnicodeStatus;
    986     }
    987 
    988     // Column 6: toAsciiT
    989     // The result of applying toASCII to the source, with Transitional_Processing=true.
    990     // A blank value means the same as the toAsciiN value.
    991     UnicodeString toAsciiT = s16FromField(fields[5]);
    992     if (toAsciiT.isEmpty()) {
    993         toAsciiT = toAsciiN;
    994     }
    995 
    996     // Column 7: toAsciiTStatus
    997     // A set of status codes, each corresponding to a particular test.
    998     // A blank value means the same as the toAsciiNStatus value.
    999     std::string toAsciiTStatus = statusFromField(fields[6]);
   1000     if (toAsciiTStatus.empty()) {
   1001         toAsciiTStatus = toAsciiNStatus;
   1002     }
   1003 
   1004     // ToASCII/ToUnicode, transitional/nontransitional
   1005     UnicodeString uN, aN, aT;
   1006     IDNAInfo uNInfo, aNInfo, aTInfo;
   1007     nontrans->nameToUnicode(source, uN, uNInfo, errorCode);
   1008     checkIdnaTestResult(fields[0][0], "toUnicodeNontrans", toUnicode, uN,
   1009                         toUnicodeStatus.c_str(), uNInfo);
   1010     nontrans->nameToASCII(source, aN, aNInfo, errorCode);
   1011     checkIdnaTestResult(fields[0][0], "toASCIINontrans", toAsciiN, aN,
   1012                         toAsciiNStatus.c_str(), aNInfo);
   1013     trans->nameToASCII(source, aT, aTInfo, errorCode);
   1014     checkIdnaTestResult(fields[0][0], "toASCIITrans", toAsciiT, aT,
   1015                         toAsciiTStatus.c_str(), aTInfo);
   1016 }
   1017 
   1018 // TODO: de-duplicate
   1019 U_DEFINE_LOCAL_OPEN_POINTER(LocalStdioFilePointer, FILE, fclose);
   1020 
   1021 // http://www.unicode.org/Public/idna/latest/IdnaTest.txt
   1022 void UTS46Test::IdnaTest() {
   1023     IcuTestErrorCode errorCode(*this, "IdnaTest");
   1024     const char *sourceTestDataPath = getSourceTestData(errorCode);
   1025     if (errorCode.errIfFailureAndReset("unable to find the source/test/testdata "
   1026                                        "folder (getSourceTestData())")) {
   1027         return;
   1028     }
   1029     CharString path(sourceTestDataPath, errorCode);
   1030     path.appendPathPart("IdnaTestV2.txt", errorCode);
   1031     LocalStdioFilePointer idnaTestFile(fopen(path.data(), "r"));
   1032     if (idnaTestFile.isNull()) {
   1033         errln("unable to open %s", path.data());
   1034         return;
   1035     }
   1036 
   1037     // Columns (c1, c2,...) are separated by semicolons.
   1038     // Leading and trailing spaces and tabs in each column are ignored.
   1039     // Comments are indicated with hash marks.
   1040     char *fields[kNumFields][2];
   1041     u_parseDelimitedFile(path.data(), ';', fields, kNumFields, idnaTestLineFn, this, errorCode);
   1042     if (errorCode.errIfFailureAndReset("error parsing IdnaTest.txt")) {
   1043         return;
   1044     }
   1045 }
   1046 
   1047 #endif  // UCONFIG_NO_IDNA
   1048