1/*
2*******************************************************************************
3*
4*   Copyright (C) 2002-2009, International Business Machines
5*   Corporation and others.  All Rights Reserved.
6*
7*******************************************************************************
8*   file name:  strcase.cpp
9*   encoding:   US-ASCII
10*   tab size:   8 (not used)
11*   indentation:4
12*
13*   created on: 2002mar12
14*   created by: Markus W. Scherer
15*
16*   Test file for string casing C++ API functions.
17*/
18
19#include "unicode/uchar.h"
20#include "unicode/ures.h"
21#include "unicode/uloc.h"
22#include "unicode/locid.h"
23#include "unicode/ubrk.h"
24#include "unicode/unistr.h"
25#include "unicode/ucasemap.h"
26#include "ustrtest.h"
27#include "unicode/tstdtmod.h"
28
29#define LENGTHOF(array) (int32_t)(sizeof(array)/sizeof((array)[0]))
30
31StringCaseTest::~StringCaseTest() {}
32
33void
34StringCaseTest::runIndexedTest(int32_t index, UBool exec, const char *&name, char * /*par*/) {
35    if (exec) logln("TestSuite StringCaseTest: ");
36    switch (index) {
37        case 0: name = "TestCaseConversion"; if (exec) TestCaseConversion(); break;
38        case 1:
39#if !UCONFIG_NO_BREAK_ITERATION && !UCONFIG_NO_FILE_IO && !UCONFIG_NO_LEGACY_CONVERSION
40            name = "TestCasing";
41            if(exec) TestCasing();
42#else
43            name = "skip";
44#endif
45            break;
46
47        default: name = ""; break; //needed to end loop
48    }
49}
50
51void
52StringCaseTest::TestCaseConversion()
53{
54    static const UChar uppercaseGreek[] =
55        { 0x399, 0x395, 0x3a3, 0x3a5, 0x3a3, 0x20, 0x03a7, 0x3a1, 0x399, 0x3a3, 0x3a4,
56        0x39f, 0x3a3, 0 };
57        // "IESUS CHRISTOS"
58
59    static const UChar lowercaseGreek[] =
60        { 0x3b9, 0x3b5, 0x3c3, 0x3c5, 0x3c2, 0x20, 0x03c7, 0x3c1, 0x3b9, 0x3c3, 0x3c4,
61        0x3bf, 0x3c2, 0 };
62        // "iesus christos"
63
64    static const UChar lowercaseTurkish[] =
65        { 0x69, 0x73, 0x74, 0x61, 0x6e, 0x62, 0x75, 0x6c, 0x2c, 0x20, 0x6e, 0x6f, 0x74, 0x20, 0x63, 0x6f,
66        0x6e, 0x73, 0x74, 0x61, 0x6e, 0x74, 0x0131, 0x6e, 0x6f, 0x70, 0x6c, 0x65, 0x21, 0 };
67
68    static const UChar uppercaseTurkish[] =
69        { 0x54, 0x4f, 0x50, 0x4b, 0x41, 0x50, 0x49, 0x20, 0x50, 0x41, 0x4c, 0x41, 0x43, 0x45, 0x2c, 0x20,
70        0x0130, 0x53, 0x54, 0x41, 0x4e, 0x42, 0x55, 0x4c, 0 };
71
72    UnicodeString expectedResult;
73    UnicodeString   test3;
74
75    test3 += (UChar32)0x0130;
76    test3 += "STANBUL, NOT CONSTANTINOPLE!";
77
78    UnicodeString   test4(test3);
79    test4.toLower(Locale(""));
80    expectedResult = UnicodeString("i\\u0307stanbul, not constantinople!", "").unescape();
81    if (test4 != expectedResult)
82        errln("1. toLower failed: expected \"" + expectedResult + "\", got \"" + test4 + "\".");
83
84    test4 = test3;
85    test4.toLower(Locale("tr", "TR"));
86    expectedResult = lowercaseTurkish;
87    if (test4 != expectedResult)
88        errln("2. toLower failed: expected \"" + expectedResult + "\", got \"" + test4 + "\".");
89
90    test3 = "topkap";
91    test3 += (UChar32)0x0131;
92    test3 += " palace, istanbul";
93    test4 = test3;
94
95    test4.toUpper(Locale(""));
96    expectedResult = "TOPKAPI PALACE, ISTANBUL";
97    if (test4 != expectedResult)
98        errln("toUpper failed: expected \"" + expectedResult + "\", got \"" + test4 + "\".");
99
100    test4 = test3;
101    test4.toUpper(Locale("tr", "TR"));
102    expectedResult = uppercaseTurkish;
103    if (test4 != expectedResult)
104        errln("toUpper failed: expected \"" + expectedResult + "\", got \"" + test4 + "\".");
105
106    test3 = CharsToUnicodeString("S\\u00FC\\u00DFmayrstra\\u00DFe");
107
108    test3.toUpper(Locale("de", "DE"));
109    expectedResult = CharsToUnicodeString("S\\u00DCSSMAYRSTRASSE");
110    if (test3 != expectedResult)
111        errln("toUpper failed: expected \"" + expectedResult + "\", got \"" + test3 + "\".");
112
113    test4.replace(0, test4.length(), uppercaseGreek);
114
115    test4.toLower(Locale("el", "GR"));
116    expectedResult = lowercaseGreek;
117    if (test4 != expectedResult)
118        errln("toLower failed: expected \"" + expectedResult + "\", got \"" + test4 + "\".");
119
120    test4.replace(0, test4.length(), lowercaseGreek);
121
122    test4.toUpper();
123    expectedResult = uppercaseGreek;
124    if (test4 != expectedResult)
125        errln("toUpper failed: expected \"" + expectedResult + "\", got \"" + test4 + "\".");
126
127    // more string case mapping tests with the new implementation
128    {
129        static const UChar
130
131        beforeLower[]= { 0x61, 0x42, 0x49,  0x3a3, 0xdf, 0x3a3, 0x2f, 0xd93f, 0xdfff },
132        lowerRoot[]=   { 0x61, 0x62, 0x69,  0x3c3, 0xdf, 0x3c2, 0x2f, 0xd93f, 0xdfff },
133        lowerTurkish[]={ 0x61, 0x62, 0x131, 0x3c3, 0xdf, 0x3c2, 0x2f, 0xd93f, 0xdfff },
134
135        beforeUpper[]= { 0x61, 0x42, 0x69,  0x3c2, 0xdf,       0x3c3, 0x2f, 0xfb03,           0xfb03,           0xfb03,           0xd93f, 0xdfff },
136        upperRoot[]=   { 0x41, 0x42, 0x49,  0x3a3, 0x53, 0x53, 0x3a3, 0x2f, 0x46, 0x46, 0x49, 0x46, 0x46, 0x49, 0x46, 0x46, 0x49, 0xd93f, 0xdfff },
137        upperTurkish[]={ 0x41, 0x42, 0x130, 0x3a3, 0x53, 0x53, 0x3a3, 0x2f, 0x46, 0x46, 0x49, 0x46, 0x46, 0x49, 0x46, 0x46, 0x49, 0xd93f, 0xdfff },
138
139        beforeMiniUpper[]=  { 0xdf, 0x61 },
140        miniUpper[]=        { 0x53, 0x53, 0x41 };
141
142        UnicodeString s;
143
144        /* lowercase with root locale */
145        s=UnicodeString(FALSE, beforeLower, (int32_t)(sizeof(beforeLower)/U_SIZEOF_UCHAR));
146        s.toLower("");
147        if( s.length()!=(sizeof(lowerRoot)/U_SIZEOF_UCHAR) ||
148            s!=UnicodeString(FALSE, lowerRoot, s.length())
149        ) {
150            errln("error in toLower(root locale)=\"" + s + "\" expected \"" + UnicodeString(FALSE, lowerRoot, (int32_t)(sizeof(lowerRoot)/U_SIZEOF_UCHAR)) + "\"");
151        }
152
153        /* lowercase with turkish locale */
154        s=UnicodeString(FALSE, beforeLower, (int32_t)(sizeof(beforeLower)/U_SIZEOF_UCHAR));
155        s.setCharAt(0, beforeLower[0]).toLower(Locale("tr"));
156        if( s.length()!=(sizeof(lowerTurkish)/U_SIZEOF_UCHAR) ||
157            s!=UnicodeString(FALSE, lowerTurkish, s.length())
158        ) {
159            errln("error in toLower(turkish locale)=\"" + s + "\" expected \"" + UnicodeString(FALSE, lowerTurkish, (int32_t)(sizeof(lowerTurkish)/U_SIZEOF_UCHAR)) + "\"");
160        }
161
162        /* uppercase with root locale */
163        s=UnicodeString(FALSE, beforeUpper, (int32_t)(sizeof(beforeUpper)/U_SIZEOF_UCHAR));
164        s.setCharAt(0, beforeUpper[0]).toUpper(Locale(""));
165        if( s.length()!=(sizeof(upperRoot)/U_SIZEOF_UCHAR) ||
166            s!=UnicodeString(FALSE, upperRoot, s.length())
167        ) {
168            errln("error in toUpper(root locale)=\"" + s + "\" expected \"" + UnicodeString(FALSE, upperRoot, (int32_t)(sizeof(upperRoot)/U_SIZEOF_UCHAR)) + "\"");
169        }
170
171        /* uppercase with turkish locale */
172        s=UnicodeString(FALSE, beforeUpper, (int32_t)(sizeof(beforeUpper)/U_SIZEOF_UCHAR));
173        s.toUpper(Locale("tr"));
174        if( s.length()!=(sizeof(upperTurkish)/U_SIZEOF_UCHAR) ||
175            s!=UnicodeString(FALSE, upperTurkish, s.length())
176        ) {
177            errln("error in toUpper(turkish locale)=\"" + s + "\" expected \"" + UnicodeString(FALSE, upperTurkish, (int32_t)(sizeof(upperTurkish)/U_SIZEOF_UCHAR)) + "\"");
178        }
179
180        /* uppercase a short string with root locale */
181        s=UnicodeString(FALSE, beforeMiniUpper, (int32_t)(sizeof(beforeMiniUpper)/U_SIZEOF_UCHAR));
182        s.setCharAt(0, beforeMiniUpper[0]).toUpper("");
183        if( s.length()!=(sizeof(miniUpper)/U_SIZEOF_UCHAR) ||
184            s!=UnicodeString(FALSE, miniUpper, s.length())
185        ) {
186            errln("error in toUpper(root locale)=\"" + s + "\" expected \"" + UnicodeString(FALSE, miniUpper, (int32_t)(sizeof(miniUpper)/U_SIZEOF_UCHAR)) + "\"");
187        }
188    }
189
190    // test some supplementary characters (>= Unicode 3.1)
191    {
192        UnicodeString t;
193
194        UnicodeString
195            deseretInput=UnicodeString("\\U0001043C\\U00010414", "").unescape(),
196            deseretLower=UnicodeString("\\U0001043C\\U0001043C", "").unescape(),
197            deseretUpper=UnicodeString("\\U00010414\\U00010414", "").unescape();
198        (t=deseretInput).toLower();
199        if(t!=deseretLower) {
200            errln("error lowercasing Deseret (plane 1) characters");
201        }
202        (t=deseretInput).toUpper();
203        if(t!=deseretUpper) {
204            errln("error uppercasing Deseret (plane 1) characters");
205        }
206    }
207
208    // test some more cases that looked like problems
209    {
210        UnicodeString t;
211
212        UnicodeString
213            ljInput=UnicodeString("ab'cD \\uFB00i\\u0131I\\u0130 \\u01C7\\u01C8\\u01C9 \\U0001043C\\U00010414", "").unescape(),
214            ljLower=UnicodeString("ab'cd \\uFB00i\\u0131ii\\u0307 \\u01C9\\u01C9\\u01C9 \\U0001043C\\U0001043C", "").unescape(),
215            ljUpper=UnicodeString("AB'CD FFIII\\u0130 \\u01C7\\u01C7\\u01C7 \\U00010414\\U00010414", "").unescape();
216        (t=ljInput).toLower("en");
217        if(t!=ljLower) {
218            errln("error lowercasing LJ characters");
219        }
220        (t=ljInput).toUpper("en");
221        if(t!=ljUpper) {
222            errln("error uppercasing LJ characters");
223        }
224    }
225
226#if !UCONFIG_NO_NORMALIZATION
227    // some context-sensitive casing depends on normalization data being present
228
229    // Unicode 3.1.1 SpecialCasing tests
230    {
231        UnicodeString t;
232
233        // sigmas preceded and/or followed by cased letters
234        UnicodeString
235            sigmas=UnicodeString("i\\u0307\\u03a3\\u0308j \\u0307\\u03a3\\u0308j i\\u00ad\\u03a3\\u0308 \\u0307\\u03a3\\u0308 ", "").unescape(),
236            sigmasLower=UnicodeString("i\\u0307\\u03c3\\u0308j \\u0307\\u03c3\\u0308j i\\u00ad\\u03c2\\u0308 \\u0307\\u03c3\\u0308 ", "").unescape(),
237            sigmasUpper=UnicodeString("I\\u0307\\u03a3\\u0308J \\u0307\\u03a3\\u0308J I\\u00ad\\u03a3\\u0308 \\u0307\\u03a3\\u0308 ", "").unescape();
238
239        (t=sigmas).toLower();
240        if(t!=sigmasLower) {
241            errln("error in sigmas.toLower()=\"" + t + "\" expected \"" + sigmasLower + "\"");
242        }
243
244        (t=sigmas).toUpper(Locale(""));
245        if(t!=sigmasUpper) {
246            errln("error in sigmas.toUpper()=\"" + t + "\" expected \"" + sigmasUpper + "\"");
247        }
248
249        // turkish & azerbaijani dotless i & dotted I
250        // remove dot above if there was a capital I before and there are no more accents above
251        UnicodeString
252            dots=UnicodeString("I \\u0130 I\\u0307 I\\u0327\\u0307 I\\u0301\\u0307 I\\u0327\\u0307\\u0301", "").unescape(),
253            dotsTurkish=UnicodeString("\\u0131 i i i\\u0327 \\u0131\\u0301\\u0307 i\\u0327\\u0301", "").unescape(),
254            dotsDefault=UnicodeString("i i\\u0307 i\\u0307 i\\u0327\\u0307 i\\u0301\\u0307 i\\u0327\\u0307\\u0301", "").unescape();
255
256        (t=dots).toLower("tr");
257        if(t!=dotsTurkish) {
258            errln("error in dots.toLower(tr)=\"" + t + "\" expected \"" + dotsTurkish + "\"");
259        }
260
261        (t=dots).toLower("de");
262        if(t!=dotsDefault) {
263            errln("error in dots.toLower(de)=\"" + t + "\" expected \"" + dotsDefault + "\"");
264        }
265    }
266
267    // more Unicode 3.1.1 tests
268    {
269        UnicodeString t;
270
271        // lithuanian dot above in uppercasing
272        UnicodeString
273            dots=UnicodeString("a\\u0307 \\u0307 i\\u0307 j\\u0327\\u0307 j\\u0301\\u0307", "").unescape(),
274            dotsLithuanian=UnicodeString("A\\u0307 \\u0307 I J\\u0327 J\\u0301\\u0307", "").unescape(),
275            dotsDefault=UnicodeString("A\\u0307 \\u0307 I\\u0307 J\\u0327\\u0307 J\\u0301\\u0307", "").unescape();
276
277        (t=dots).toUpper("lt");
278        if(t!=dotsLithuanian) {
279            errln("error in dots.toUpper(lt)=\"" + t + "\" expected \"" + dotsLithuanian + "\"");
280        }
281
282        (t=dots).toUpper("de");
283        if(t!=dotsDefault) {
284            errln("error in dots.toUpper(de)=\"" + t + "\" expected \"" + dotsDefault + "\"");
285        }
286
287        // lithuanian adds dot above to i in lowercasing if there are more above accents
288        UnicodeString
289            i=UnicodeString("I I\\u0301 J J\\u0301 \\u012e \\u012e\\u0301 \\u00cc\\u00cd\\u0128", "").unescape(),
290            iLithuanian=UnicodeString("i i\\u0307\\u0301 j j\\u0307\\u0301 \\u012f \\u012f\\u0307\\u0301 i\\u0307\\u0300i\\u0307\\u0301i\\u0307\\u0303", "").unescape(),
291            iDefault=UnicodeString("i i\\u0301 j j\\u0301 \\u012f \\u012f\\u0301 \\u00ec\\u00ed\\u0129", "").unescape();
292
293        (t=i).toLower("lt");
294        if(t!=iLithuanian) {
295            errln("error in i.toLower(lt)=\"" + t + "\" expected \"" + iLithuanian + "\"");
296        }
297
298        (t=i).toLower("de");
299        if(t!=iDefault) {
300            errln("error in i.toLower(de)=\"" + t + "\" expected \"" + iDefault + "\"");
301        }
302    }
303
304#endif
305
306    // test case folding
307    {
308        UnicodeString
309            s=UnicodeString("A\\u00df\\u00b5\\ufb03\\U0001040c\\u0130\\u0131", "").unescape(),
310            f=UnicodeString("ass\\u03bcffi\\U00010434i\\u0307\\u0131", "").unescape(),
311            g=UnicodeString("ass\\u03bcffi\\U00010434i\\u0131", "").unescape(),
312            t;
313
314        (t=s).foldCase();
315        if(f!=t) {
316            errln("error in foldCase(\"" + s + "\", default)=\"" + t + "\" but expected \"" + f + "\"");
317        }
318
319        // alternate handling for dotted I/dotless i (U+0130, U+0131)
320        (t=s).foldCase(U_FOLD_CASE_EXCLUDE_SPECIAL_I);
321        if(g!=t) {
322            errln("error in foldCase(\"" + s + "\", U_FOLD_CASE_EXCLUDE_SPECIAL_I)=\"" + t + "\" but expected \"" + g + "\"");
323        }
324    }
325}
326
327// data-driven case mapping tests ------------------------------------------ ***
328
329enum {
330    TEST_LOWER,
331    TEST_UPPER,
332    TEST_TITLE,
333    TEST_FOLD,
334    TEST_COUNT
335};
336
337// names of TestData children in casing.txt
338static const char *const dataNames[TEST_COUNT+1]={
339    "lowercasing",
340    "uppercasing",
341    "titlecasing",
342    "casefolding",
343    ""
344};
345
346void
347StringCaseTest::TestCasingImpl(const UnicodeString &input,
348                               const UnicodeString &output,
349                               int32_t whichCase,
350                               void *iter, const char *localeID, uint32_t options) {
351    // UnicodeString
352    UnicodeString result;
353    const char *name;
354    Locale locale(localeID);
355
356    result=input;
357    switch(whichCase) {
358    case TEST_LOWER:
359        name="toLower";
360        result.toLower(locale);
361        break;
362    case TEST_UPPER:
363        name="toUpper";
364        result.toUpper(locale);
365        break;
366#if !UCONFIG_NO_BREAK_ITERATION
367    case TEST_TITLE:
368        name="toTitle";
369        result.toTitle((BreakIterator *)iter, locale, options);
370        break;
371#endif
372    case TEST_FOLD:
373        name="foldCase";
374        result.foldCase(options);
375        break;
376    default:
377        name="";
378        break; // won't happen
379    }
380    if(result!=output) {
381        dataerrln("error: UnicodeString.%s() got a wrong result for a test case from casing.res", name);
382    }
383#if !UCONFIG_NO_BREAK_ITERATION
384    if(whichCase==TEST_TITLE && options==0) {
385        result=input;
386        result.toTitle((BreakIterator *)iter, locale);
387        if(result!=output) {
388            dataerrln("error: UnicodeString.toTitle(options=0) got a wrong result for a test case from casing.res");
389        }
390    }
391#endif
392
393    // UTF-8
394    char utf8In[100], utf8Out[100];
395    int32_t utf8InLength, utf8OutLength, resultLength;
396    UChar *buffer;
397
398    IcuTestErrorCode errorCode(*this, "TestCasingImpl");
399    LocalUCaseMapPointer csm(ucasemap_open(localeID, options, errorCode));
400#if !UCONFIG_NO_BREAK_ITERATION
401    if(iter!=NULL) {
402        // Clone the break iterator so that the UCaseMap can safely adopt it.
403        int32_t size=1;  // Not 0 because that only gives preflighting.
404        UBreakIterator *clone=ubrk_safeClone((UBreakIterator *)iter, NULL, &size, errorCode);
405        ucasemap_setBreakIterator(csm.getAlias(), clone, errorCode);
406    }
407#endif
408
409    u_strToUTF8(utf8In, (int32_t)sizeof(utf8In), &utf8InLength, input.getBuffer(), input.length(), errorCode);
410    switch(whichCase) {
411    case TEST_LOWER:
412        name="ucasemap_utf8ToLower";
413        utf8OutLength=ucasemap_utf8ToLower(csm.getAlias(),
414                    utf8Out, (int32_t)sizeof(utf8Out),
415                    utf8In, utf8InLength, errorCode);
416        break;
417    case TEST_UPPER:
418        name="ucasemap_utf8ToUpper";
419        utf8OutLength=ucasemap_utf8ToUpper(csm.getAlias(),
420                    utf8Out, (int32_t)sizeof(utf8Out),
421                    utf8In, utf8InLength, errorCode);
422        break;
423#if !UCONFIG_NO_BREAK_ITERATION
424    case TEST_TITLE:
425        name="ucasemap_utf8ToTitle";
426        utf8OutLength=ucasemap_utf8ToTitle(csm.getAlias(),
427                    utf8Out, (int32_t)sizeof(utf8Out),
428                    utf8In, utf8InLength, errorCode);
429        break;
430#endif
431    case TEST_FOLD:
432        name="ucasemap_utf8FoldCase";
433        utf8OutLength=ucasemap_utf8FoldCase(csm.getAlias(),
434                    utf8Out, (int32_t)sizeof(utf8Out),
435                    utf8In, utf8InLength, errorCode);
436        break;
437    default:
438        name="";
439        utf8OutLength=0;
440        break; // won't happen
441    }
442    buffer=result.getBuffer(utf8OutLength);
443    u_strFromUTF8(buffer, result.getCapacity(), &resultLength, utf8Out, utf8OutLength, errorCode);
444    result.releaseBuffer(errorCode.isSuccess() ? resultLength : 0);
445
446    if(errorCode.isFailure()) {
447        errcheckln(errorCode, "error: %s() got an error for a test case from casing.res - %s", name, u_errorName(errorCode));
448        errorCode.reset();
449    } else if(result!=output) {
450        errln("error: %s() got a wrong result for a test case from casing.res", name);
451        errln("expected \"" + output + "\" got \"" + result + "\"" );
452    }
453}
454
455void
456StringCaseTest::TestCasing() {
457    UErrorCode status = U_ZERO_ERROR;
458#if !UCONFIG_NO_BREAK_ITERATION
459    LocalUBreakIteratorPointer iter;
460#endif
461    char cLocaleID[100];
462    UnicodeString locale, input, output, optionsString, result;
463    uint32_t options;
464    int32_t whichCase, type;
465    LocalPointer<TestDataModule> driver(TestDataModule::getTestDataModule("casing", *this, status));
466    if(U_SUCCESS(status)) {
467        for(whichCase=0; whichCase<TEST_COUNT; ++whichCase) {
468#if UCONFIG_NO_BREAK_ITERATION
469            if(whichCase==TEST_TITLE) {
470                continue;
471            }
472#endif
473            LocalPointer<TestData> casingTest(driver->createTestData(dataNames[whichCase], status));
474            if(U_FAILURE(status)) {
475                errln("TestCasing failed to createTestData(%s) - %s", dataNames[whichCase], u_errorName(status));
476                break;
477            }
478            const DataMap *myCase = NULL;
479            while(casingTest->nextCase(myCase, status)) {
480                input = myCase->getString("Input", status);
481                output = myCase->getString("Output", status);
482
483                if(whichCase!=TEST_FOLD) {
484                    locale = myCase->getString("Locale", status);
485                }
486                locale.extract(0, 0x7fffffff, cLocaleID, sizeof(cLocaleID), "");
487
488#if !UCONFIG_NO_BREAK_ITERATION
489                if(whichCase==TEST_TITLE) {
490                    type = myCase->getInt("Type", status);
491                    if(type>=0) {
492                        iter.adoptInstead(ubrk_open((UBreakIteratorType)type, cLocaleID, NULL, 0, &status));
493                    } else if(type==-2) {
494                        // Open a trivial break iterator that only delivers { 0, length }
495                        // or even just { 0 } as boundaries.
496                        static const UChar rules[] = { 0x2e, 0x2a, 0x3b };  // ".*;"
497                        UParseError parseError;
498                        iter.adoptInstead(ubrk_openRules(rules, LENGTHOF(rules), NULL, 0, &parseError, &status));
499                    }
500                }
501#endif
502                options = 0;
503                if(whichCase==TEST_TITLE || whichCase==TEST_FOLD) {
504                    optionsString = myCase->getString("Options", status);
505                    if(optionsString.indexOf((UChar)0x54)>=0) {  // T
506                        options|=U_FOLD_CASE_EXCLUDE_SPECIAL_I;
507                    }
508                    if(optionsString.indexOf((UChar)0x4c)>=0) {  // L
509                        options|=U_TITLECASE_NO_LOWERCASE;
510                    }
511                    if(optionsString.indexOf((UChar)0x41)>=0) {  // A
512                        options|=U_TITLECASE_NO_BREAK_ADJUSTMENT;
513                    }
514                }
515
516                if(U_FAILURE(status)) {
517                    dataerrln("error: TestCasing() setup failed for %s test case from casing.res: %s", dataNames[whichCase],  u_errorName(status));
518                    status = U_ZERO_ERROR;
519                } else {
520#if UCONFIG_NO_BREAK_ITERATION
521                    LocalPointer<UMemory> iter;
522#endif
523                    TestCasingImpl(input, output, whichCase, iter.getAlias(), cLocaleID, options);
524                }
525
526#if !UCONFIG_NO_BREAK_ITERATION
527                iter.adoptInstead(NULL);
528#endif
529            }
530        }
531    }
532
533#if !UCONFIG_NO_BREAK_ITERATION
534    // more tests for API coverage
535    status=U_ZERO_ERROR;
536    input=UNICODE_STRING_SIMPLE("sTrA\\u00dfE").unescape();
537    (result=input).toTitle(NULL);
538    if(result!=UNICODE_STRING_SIMPLE("Stra\\u00dfe").unescape()) {
539        dataerrln("UnicodeString::toTitle(NULL) failed.");
540    }
541#endif
542}
543