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1 /*
2  *******************************************************************************
3  *
4  *   Copyright (C) 1999-2008, International Business Machines
5  *   Corporation and others.  All Rights Reserved.
6  *
7  *******************************************************************************
8  *   file name:  letest.cpp
9  *
10  *   created on: 11/06/2000
11  *   created by: Eric R. Mader
12  */
13 
14 #include "unicode/utypes.h"
15 #include "unicode/uclean.h"
16 #include "unicode/uchar.h"
17 #include "unicode/unistr.h"
18 #include "unicode/uscript.h"
19 #include "unicode/putil.h"
20 #include "unicode/ctest.h"
21 
22 #include "layout/LETypes.h"
23 #include "layout/LEScripts.h"
24 #include "layout/LayoutEngine.h"
25 
26 #include "layout/ParagraphLayout.h"
27 #include "layout/RunArrays.h"
28 
29 #include "PortableFontInstance.h"
30 #include "SimpleFontInstance.h"
31 
32 #include "letsutil.h"
33 #include "letest.h"
34 
35 #include "xmlparser.h"
36 #include "putilimp.h" // for uprv_getUTCtime()
37 
38 #include <stdlib.h>
39 #include <string.h>
40 
41 U_NAMESPACE_USE
42 
43 #define CH_COMMA 0x002C
44 
45 U_CDECL_BEGIN
46 
ScriptTest(void)47 static void U_CALLCONV ScriptTest(void)
48 {
49     if ((int)scriptCodeCount != (int)USCRIPT_CODE_LIMIT) {
50         log_err("ScriptCodes::scriptCodeCount = %d, but UScriptCode::USCRIPT_CODE_LIMIT = %d\n", scriptCodeCount, USCRIPT_CODE_LIMIT);
51     }
52 }
53 
ParamTest(void)54 static void U_CALLCONV ParamTest(void)
55 {
56     LEErrorCode status = LE_NO_ERROR;
57     SimpleFontInstance *font = new SimpleFontInstance(12, status);
58     LayoutEngine *engine = LayoutEngine::layoutEngineFactory(font, arabScriptCode, -1, status);
59     LEGlyphID *glyphs    = NULL;
60     le_int32  *indices   = NULL;
61     float     *positions = NULL;
62     le_int32   glyphCount = 0;
63 
64     glyphCount = engine->getGlyphCount();
65     if (glyphCount != 0) {
66         log_err("Calling getGlyphCount() on an empty layout returned %d.\n", glyphCount);
67     }
68 
69     glyphs    = NEW_ARRAY(LEGlyphID, glyphCount + 10);
70     indices   = NEW_ARRAY(le_int32, glyphCount + 10);
71     positions = NEW_ARRAY(float, glyphCount + 10);
72 
73     engine->getGlyphs(NULL, status);
74 
75     if (status != LE_ILLEGAL_ARGUMENT_ERROR) {
76         log_err("Calling getGlyphs(NULL, status) did not return LE_ILLEGAL_ARGUMENT_ERROR.\n");
77     }
78 
79     status = LE_NO_ERROR;
80     engine->getGlyphs(glyphs, status);
81 
82     if (status != LE_NO_LAYOUT_ERROR) {
83         log_err("Calling getGlyphs(glyphs, status) on an empty layout did not return LE_NO_LAYOUT_ERROR.\n");
84     }
85 
86     status = LE_NO_ERROR;
87     engine->getGlyphs(NULL, 0xFF000000L, status);
88 
89     if (status != LE_ILLEGAL_ARGUMENT_ERROR) {
90         log_err("Calling getGlyphs(NULL, 0xFF000000L, status) did not return LE_ILLEGAL_ARGUMENT_ERROR.\n");
91     }
92 
93     status = LE_NO_ERROR;
94     engine->getGlyphs(glyphs, 0xFF000000L, status);
95 
96     if (status != LE_NO_LAYOUT_ERROR) {
97         log_err("Calling getGlyphs(glyphs, 0xFF000000L, status) on an empty layout did not return LE_NO_LAYOUT_ERROR.\n");
98     }
99 
100     status = LE_NO_ERROR;
101     engine->getCharIndices(NULL, status);
102 
103     if (status != LE_ILLEGAL_ARGUMENT_ERROR) {
104         log_err("Calling getCharIndices(NULL, status) did not return LE_ILLEGAL_ARGUMENT_ERROR.\n");
105     }
106 
107     status = LE_NO_ERROR;
108     engine->getCharIndices(indices, status);
109 
110     if (status != LE_NO_LAYOUT_ERROR) {
111         log_err("Calling getCharIndices(indices, status) on an empty layout did not return LE_NO_LAYOUT_ERROR.\n");
112     }
113 
114     status = LE_NO_ERROR;
115     engine->getCharIndices(NULL, 1024, status);
116 
117     if (status != LE_ILLEGAL_ARGUMENT_ERROR) {
118         log_err("Calling getCharIndices(NULL, 1024, status) did not return LE_ILLEGAL_ARGUMENT_ERROR.\n");
119     }
120 
121     status = LE_NO_ERROR;
122     engine->getCharIndices(indices, 1024, status);
123 
124     if (status != LE_NO_LAYOUT_ERROR) {
125         log_err("Calling getCharIndices(indices, 1024, status) on an empty layout did not return LE_NO_LAYOUT_ERROR.\n");
126     }
127 
128     status = LE_NO_ERROR;
129     engine->getGlyphPositions(NULL, status);
130 
131     if (status != LE_ILLEGAL_ARGUMENT_ERROR) {
132         log_err("Calling getGlyphPositions(NULL, status) did not return LE_ILLEGAL_ARGUMENT_ERROR.\n");
133     }
134 
135     status = LE_NO_ERROR;
136     engine->getGlyphPositions(positions, status);
137 
138     if (status != LE_NO_LAYOUT_ERROR) {
139         log_err("Calling getGlyphPositions(positions, status) on an empty layout did not return LE_NO_LAYOUT_ERROR.\n");
140     }
141 
142     DELETE_ARRAY(positions);
143     DELETE_ARRAY(indices);
144     DELETE_ARRAY(glyphs);
145 
146     status = LE_NO_ERROR;
147     glyphCount = engine->layoutChars(NULL, 0, 0, 0, FALSE, 0.0, 0.0, status);
148 
149     if (status != LE_ILLEGAL_ARGUMENT_ERROR) {
150         log_err("Calling layoutChars(NULL, 0, 0, 0, FALSE, 0.0, 0.0, status) did not fail w/ LE_ILLEGAL_ARGUMENT_ERROR.\n");
151     }
152 
153     LEUnicode chars[] = {
154         0x0045, 0x006E, 0x0067, 0x006C, 0x0069, 0x0073, 0x0068, 0x0020, // "English "
155         0x0645, 0x0627, 0x0646, 0x062A, 0x0648, 0x0634,                 // MEM ALIF KAF NOON TEH WAW SHEEN
156         0x0020, 0x0074, 0x0065, 0x0078, 0x0074, 0x02E                   // " text."
157     };
158 
159     status = LE_NO_ERROR;
160     glyphCount = engine->layoutChars(chars, -1, 6, 20, TRUE, 0.0, 0.0, status);
161 
162     if (status != LE_ILLEGAL_ARGUMENT_ERROR) {
163         log_err("Calling layoutChars(chars, -1, 6, 20, TRUE, 0.0, 0.0, status) did not fail w/ LE_ILLEGAL_ARGUMENT_ERROR.\n");
164     }
165 
166     status = LE_NO_ERROR;
167     glyphCount = engine->layoutChars(chars, 8, -1, 20, TRUE, 0.0, 0.0, status);
168 
169     if (status != LE_ILLEGAL_ARGUMENT_ERROR) {
170         log_err("Calling layoutChars(chars, 8, -1, 20, TRUE, 0.0, 0.0, status) did not fail w/ LE_ILLEGAL_ARGUMENT_ERROR.\n");
171     }
172 
173     status = LE_NO_ERROR;
174     glyphCount = engine->layoutChars(chars, 8, 6, -1, TRUE, 0.0, 0.0, status);
175 
176     if (status != LE_ILLEGAL_ARGUMENT_ERROR) {
177         log_err("Calling layoutChars((chars, 8, 6, -1, TRUE, 0.0, 0.0, status) did not fail w/ LE_ILLEGAL_ARGUMENT_ERROR.\n");
178     }
179 
180     status = LE_NO_ERROR;
181     glyphCount = engine->layoutChars(chars, 8, 6, 10, TRUE, 0.0, 0.0, status);
182 
183     if (status != LE_ILLEGAL_ARGUMENT_ERROR) {
184         log_err("Calling layoutChars(chars, 8, 6, 10, TRUE, 0.0, 0.0, status) did not fail w/ LE_ILLEGAL_ARGUMENT_ERROR.\n");
185     }
186 
187     float x = 0.0, y = 0.0;
188 
189     status = LE_NO_ERROR;
190     glyphCount = engine->layoutChars(chars, 8, 6, 20, TRUE, 0.0, 0.0, status);
191 
192     if (LE_FAILURE(status)) {
193         log_err("Calling layoutChars(chars, 8, 6, 20, TRUE, 0.0, 0.0, status) failed.\n");
194         goto bail;
195     }
196 
197     engine->getGlyphPosition(-1, x, y, status);
198 
199     if (status != LE_INDEX_OUT_OF_BOUNDS_ERROR) {
200         log_err("Calling getGlyphPosition(-1, x, y, status) did not fail w/ LE_INDEX_OUT_OF_BOUNDS_ERROR.\n");
201     }
202 
203     status = LE_NO_ERROR;
204     engine->getGlyphPosition(glyphCount + 1, x, y, status);
205 
206     if (status != LE_INDEX_OUT_OF_BOUNDS_ERROR) {
207         log_err("Calling getGlyphPosition(glyphCount + 1, x, y, status) did not fail w/ LE_INDEX_OUT_OF_BOUNDS_ERROR.\n");
208     }
209 
210 bail:
211     delete engine;
212     delete font;
213 }
214 U_CDECL_END
215 
216 U_CDECL_BEGIN
FactoryTest(void)217 static void U_CALLCONV FactoryTest(void)
218 {
219     LEErrorCode status = LE_NO_ERROR;
220     SimpleFontInstance *font = new SimpleFontInstance(12, status);
221     LayoutEngine *engine = NULL;
222 
223     for(le_int32 scriptCode = 0; scriptCode < scriptCodeCount; scriptCode += 1) {
224         status = LE_NO_ERROR;
225         engine = LayoutEngine::layoutEngineFactory(font, scriptCode, -1, status);
226 
227         if (LE_FAILURE(status)) {
228             log_err("Could not create a LayoutEngine for script \'%s\'.\n", uscript_getShortName((UScriptCode)scriptCode));
229         }
230 
231         delete engine;
232     }
233 
234     delete font;
235 }
236 U_CDECL_END
237 
238 U_CDECL_BEGIN
AccessTest(void)239 static void U_CALLCONV AccessTest(void)
240 {
241     LEErrorCode status = LE_NO_ERROR;
242     SimpleFontInstance *font = new SimpleFontInstance(12, status);
243     LayoutEngine *engine = LayoutEngine::layoutEngineFactory(font, arabScriptCode, -1, status);
244     le_int32 glyphCount;
245     LEGlyphID glyphs[6], extraBitGlyphs[6];;
246     le_int32 biasedIndices[6], indices[6], glyph;
247     float positions[6 * 2 + 2];
248     LEUnicode chars[] = {
249         0x0045, 0x006E, 0x0067, 0x006C, 0x0069, 0x0073, 0x0068, 0x0020, // "English "
250         0x0645, 0x0627, 0x0646, 0x062A, 0x0648, 0x0634,                 // MEM ALIF KAF NOON TEH WAW SHEEN
251         0x0020, 0x0074, 0x0065, 0x0078, 0x0074, 0x02E                   // " text."
252     };
253 
254     if (LE_FAILURE(status)) {
255         log_err("Could not create LayoutEngine.\n");
256         goto bail;
257     }
258 
259     glyphCount = engine->layoutChars(chars, 8, 6, 20, TRUE, 0.0, 0.0, status);
260 
261     if (LE_FAILURE(status) || glyphCount != 6) {
262         log_err("layoutChars(chars, 8, 6, 20, TRUE, 0.0, 0.0, status) failed.\n");
263         goto bail;
264     }
265 
266     engine->getGlyphs(glyphs, status);
267     engine->getCharIndices(indices, status);
268     engine->getGlyphPositions(positions, status);
269 
270     if (LE_FAILURE(status)) {
271         log_err("Could not get glyph, indices and position arrays.\n");
272         goto bail;
273     }
274 
275     engine->getGlyphs(extraBitGlyphs, 0xFF000000L, status);
276 
277     if (LE_FAILURE(status)) {
278         log_err("getGlyphs(extraBitGlyphs, 0xFF000000L, status); failed.\n");
279     } else {
280         for(glyph = 0; glyph < glyphCount; glyph += 1) {
281             if (extraBitGlyphs[glyph] != (glyphs[glyph] | 0xFF000000L)) {
282                 log_err("extraBigGlyphs[%d] != glyphs[%d] | 0xFF000000L: %8X, %8X\n",
283                     glyph, glyph, extraBitGlyphs[glyph], glyphs[glyph]);
284                 break;
285             }
286         }
287     }
288 
289     status = LE_NO_ERROR;
290     engine->getCharIndices(biasedIndices, 1024, status);
291 
292     if (LE_FAILURE(status)) {
293         log_err("getCharIndices(biasedIndices, 1024, status) failed.\n");
294     } else {
295         for (glyph = 0; glyph < glyphCount; glyph += 1) {
296             if (biasedIndices[glyph] != (indices[glyph] + 1024)) {
297                 log_err("biasedIndices[%d] != indices[%d] + 1024: %8X, %8X\n",
298                     glyph, glyph, biasedIndices[glyph], indices[glyph]);
299                 break;
300             }
301         }
302     }
303 
304     status = LE_NO_ERROR;
305     for (glyph = 0; glyph <= glyphCount; glyph += 1) {
306         float x = 0.0, y = 0.0;
307 
308         engine->getGlyphPosition(glyph, x, y, status);
309 
310         if (LE_FAILURE(status)) {
311             log_err("getGlyphPosition(%d, x, y, status) failed.\n", glyph);
312             break;
313         }
314 
315         if (x != positions[glyph*2] || y != positions[glyph*2 + 1]) {
316             log_err("getGlyphPosition(%d, x, y, status) returned bad position: (%f, %f) != (%f, %f)\n",
317                 glyph, x, y, positions[glyph*2], positions[glyph*2 + 1]);
318             break;
319         }
320     }
321 
322 bail:
323     delete engine;
324     delete font;
325 }
326 U_CDECL_END
327 
compareResults(const char * testID,TestResult * expected,TestResult * actual)328 le_bool compareResults(const char *testID, TestResult *expected, TestResult *actual)
329 {
330     /* NOTE: we'll stop on the first failure 'cause once there's one error, it may cascade... */
331     if (actual->glyphCount != expected->glyphCount) {
332         log_err("Test %s: incorrect glyph count: exptected %d, got %d\n",
333             testID, expected->glyphCount, actual->glyphCount);
334         return FALSE;
335     }
336 
337     le_int32 i;
338 
339     for (i = 0; i < actual->glyphCount; i += 1) {
340         if (actual->glyphs[i] != expected->glyphs[i]) {
341             log_err("Test %s: incorrect id for glyph %d: expected %4X, got %4X\n",
342                 testID, i, expected->glyphs[i], actual->glyphs[i]);
343             return FALSE;
344         }
345     }
346 
347     for (i = 0; i < actual->glyphCount; i += 1) {
348         if (actual->indices[i] != expected->indices[i]) {
349             log_err("Test %s: incorrect index for glyph %d: expected %8X, got %8X\n",
350                 testID, i, expected->indices[i], actual->indices[i]);
351             return FALSE;
352         }
353     }
354 
355     for (i = 0; i <= actual->glyphCount; i += 1) {
356         double xError = uprv_fabs(actual->positions[i * 2] - expected->positions[i * 2]);
357 
358         if (xError > 0.0001) {
359             log_err("Test %s: incorrect x position for glyph %d: expected %f, got %f\n",
360                 testID, i, expected->positions[i * 2], actual->positions[i * 2]);
361             return FALSE;
362         }
363 
364         double yError = uprv_fabs(actual->positions[i * 2 + 1] - expected->positions[i * 2 + 1]);
365 
366         if (yError < 0) {
367             yError = -yError;
368         }
369 
370         if (yError > 0.0001) {
371             log_err("Test %s: incorrect y position for glyph %d: expected %f, got %f\n",
372                 testID, i, expected->positions[i * 2 + 1], actual->positions[i * 2 + 1]);
373             return FALSE;
374         }
375     }
376 
377     return TRUE;
378 }
379 
checkFontVersion(PortableFontInstance * fontInstance,const char * testVersionString,le_uint32 testChecksum,const char * testID)380 static void checkFontVersion(PortableFontInstance *fontInstance, const char *testVersionString,
381                              le_uint32 testChecksum, const char *testID)
382 {
383     le_uint32 fontChecksum = fontInstance->getFontChecksum();
384 
385     if (fontChecksum != testChecksum) {
386         const char *fontVersionString = fontInstance->getNameString(NAME_VERSION_STRING,
387             PLATFORM_MACINTOSH, MACINTOSH_ROMAN, MACINTOSH_ENGLISH);
388         const LEUnicode *uFontVersionString = NULL;
389 
390             // The standard recommends that the Macintosh Roman/English name string be present, but
391             // if it's not, try the Microsoft Unicode/English string.
392             if (fontVersionString == NULL) {
393                 uFontVersionString = fontInstance->getUnicodeNameString(NAME_VERSION_STRING,
394                     PLATFORM_MICROSOFT, MICROSOFT_UNICODE_BMP, MICROSOFT_ENGLISH);
395             }
396 
397         log_info("Test %s: this may not be the same font used to generate the test data.\n", testID);
398 
399         if (uFontVersionString != NULL) {
400             log_info("Your font's version string is \"%S\"\n", uFontVersionString);
401             fontInstance->deleteNameString(uFontVersionString);
402         } else {
403             log_info("Your font's version string is \"%s\"\n", fontVersionString);
404             fontInstance->deleteNameString(fontVersionString);
405         }
406 
407         log_info("The expected version string is \"%s\"\n", testVersionString);
408         log_info("If you see errors, they may be due to the version of the font you're using.\n");
409     }
410 }
411 
412 /* Returns the path to icu/source/test/testdata/ */
getSourceTestData()413 const char *getSourceTestData() {
414     const char *srcDataDir = NULL;
415 #ifdef U_TOPSRCDIR
416     srcDataDir = U_TOPSRCDIR U_FILE_SEP_STRING"test"U_FILE_SEP_STRING"testdata"U_FILE_SEP_STRING;
417 #else
418     srcDataDir = ".."U_FILE_SEP_STRING".."U_FILE_SEP_STRING"test"U_FILE_SEP_STRING"testdata"U_FILE_SEP_STRING;
419     FILE *f = fopen(".."U_FILE_SEP_STRING".."U_FILE_SEP_STRING"test"U_FILE_SEP_STRING"testdata"U_FILE_SEP_STRING"rbbitst.txt", "r");
420 
421     if (f != NULL) {
422         /* We're in icu/source/test/letest/ */
423         fclose(f);
424     } else {
425         /* We're in icu/source/test/letest/(Debug|Release) */
426         srcDataDir = ".."U_FILE_SEP_STRING".."U_FILE_SEP_STRING".."U_FILE_SEP_STRING"test"U_FILE_SEP_STRING"testdata"U_FILE_SEP_STRING;
427     }
428 #endif
429 
430     return srcDataDir;
431 }
432 
getPath(char buffer[2048],const char * filename)433 const char *getPath(char buffer[2048], const char *filename) {
434     const char *testDataDirectory = getSourceTestData();
435 
436     strcpy(buffer, testDataDirectory);
437     strcat(buffer, filename);
438 
439     return buffer;
440 }
441 
getHexArray(const UnicodeString & numbers,int32_t & arraySize)442 le_uint32 *getHexArray(const UnicodeString &numbers, int32_t &arraySize)
443 {
444     int32_t offset = -1;
445 
446     arraySize = 1;
447     while((offset = numbers.indexOf(CH_COMMA, offset + 1)) >= 0) {
448         arraySize += 1;
449     }
450 
451     le_uint32 *array = NEW_ARRAY(le_uint32, arraySize);
452     char number[16];
453     le_int32 count = 0;
454     le_int32 start = 0, end = 0;
455     le_int32 len = 0;
456 
457     // trim leading whitespace
458     while(u_isUWhiteSpace(numbers[start])) {
459         start += 1;
460     }
461 
462     while((end = numbers.indexOf(CH_COMMA, start)) >= 0) {
463         len = numbers.extract(start, end - start, number, ARRAY_SIZE(number), US_INV);
464         number[len] = '\0';
465         start = end + 1;
466 
467         sscanf(number, "%x", &array[count++]);
468 
469         // trim whitespace following the comma
470         while(u_isUWhiteSpace(numbers[start])) {
471             start += 1;
472         }
473     }
474 
475     // trim trailing whitespace
476     end = numbers.length();
477     while(u_isUWhiteSpace(numbers[end - 1])) {
478         end -= 1;
479     }
480 
481     len = numbers.extract(start, end - start, number, ARRAY_SIZE(number), US_INV);
482     number[len] = '\0';
483     sscanf(number, "%x", &array[count]);
484 
485     return array;
486 }
487 
getFloatArray(const UnicodeString & numbers,int32_t & arraySize)488 float *getFloatArray(const UnicodeString &numbers, int32_t &arraySize)
489 {
490     int32_t offset = -1;
491 
492     arraySize = 1;
493     while((offset = numbers.indexOf(CH_COMMA, offset + 1)) >= 0) {
494         arraySize += 1;
495     }
496 
497     float *array = NEW_ARRAY(float, arraySize);
498     char number[32];
499     le_int32 count = 0;
500     le_int32 start = 0, end = 0;
501     le_int32 len = 0;
502 
503     // trim leading whitespace
504     while(u_isUWhiteSpace(numbers[start])) {
505         start += 1;
506     }
507 
508     while((end = numbers.indexOf(CH_COMMA, start)) >= 0) {
509         len = numbers.extract(start, end - start, number, ARRAY_SIZE(number), US_INV);
510         number[len] = '\0';
511         start = end + 1;
512 
513         sscanf(number, "%f", &array[count++]);
514 
515         // trim whiteapce following the comma
516         while(u_isUWhiteSpace(numbers[start])) {
517             start += 1;
518         }
519     }
520 
521     while(u_isUWhiteSpace(numbers[start])) {
522         start += 1;
523     }
524 
525     // trim trailing whitespace
526     end = numbers.length();
527     while(u_isUWhiteSpace(numbers[end - 1])) {
528         end -= 1;
529     }
530 
531     len = numbers.extract(start, end - start, number, ARRAY_SIZE(number), US_INV);
532     number[len] = '\0';
533     sscanf(number, "%f", &array[count]);
534 
535     return array;
536 }
537 
openFont(const char * fontName,const char * checksum,const char * version,const char * testID)538 LEFontInstance *openFont(const char *fontName, const char *checksum, const char *version, const char *testID)
539 {
540     char path[2048];
541     PortableFontInstance *font;
542     LEErrorCode fontStatus = LE_NO_ERROR;
543 
544 
545     font = new PortableFontInstance(getPath(path, fontName), 12, fontStatus);
546 
547     if (LE_FAILURE(fontStatus)) {
548         log_info("Test %s: can't open font %s - test skipped.\n", testID, fontName);
549         delete font;
550         return NULL;
551     } else {
552         le_uint32 cksum = 0;
553 
554         sscanf(checksum, "%x", &cksum);
555 
556         checkFontVersion(font, version, cksum, testID);
557     }
558 
559     return font;
560 }
561 
562 U_CDECL_BEGIN
DataDrivenTest(void)563 static void U_CALLCONV DataDrivenTest(void)
564 {
565 #if !UCONFIG_NO_REGULAR_EXPRESSIONS
566     UErrorCode status = U_ZERO_ERROR;
567     char path[2048];
568     const char *testFilePath = getPath(path, "letest.xml");
569 
570     UXMLParser  *parser = UXMLParser::createParser(status);
571     UXMLElement *root   = parser->parseFile(testFilePath, status);
572 
573     if (root == NULL) {
574         log_err("Could not open the test data file: %s\n", testFilePath);
575         delete parser;
576         return;
577     }
578 
579     UnicodeString test_case        = UNICODE_STRING_SIMPLE("test-case");
580     UnicodeString test_text        = UNICODE_STRING_SIMPLE("test-text");
581     UnicodeString test_font        = UNICODE_STRING_SIMPLE("test-font");
582     UnicodeString result_glyphs    = UNICODE_STRING_SIMPLE("result-glyphs");
583     UnicodeString result_indices   = UNICODE_STRING_SIMPLE("result-indices");
584     UnicodeString result_positions = UNICODE_STRING_SIMPLE("result-positions");
585 
586     // test-case attributes
587     UnicodeString id_attr     = UNICODE_STRING_SIMPLE("id");
588     UnicodeString script_attr = UNICODE_STRING_SIMPLE("script");
589     UnicodeString lang_attr   = UNICODE_STRING_SIMPLE("lang");
590 
591     // test-font attributes
592     UnicodeString name_attr   = UNICODE_STRING_SIMPLE("name");
593     UnicodeString ver_attr    = UNICODE_STRING_SIMPLE("version");
594     UnicodeString cksum_attr  = UNICODE_STRING_SIMPLE("checksum");
595 
596     const UXMLElement *testCase;
597     int32_t tc = 0;
598 
599     while((testCase = root->nextChildElement(tc)) != NULL) {
600         if (testCase->getTagName().compare(test_case) == 0) {
601             char *id = getCString(testCase->getAttribute(id_attr));
602             char *script = getCString(testCase->getAttribute(script_attr));
603             char *lang   = getCString(testCase->getAttribute(lang_attr));
604             LEFontInstance *font = NULL;
605             const UXMLElement *element;
606             int32_t ec = 0;
607             int32_t charCount = 0;
608             int32_t typoFlags = 3; // kerning + ligatures...
609             UScriptCode scriptCode;
610             le_int32 languageCode = -1;
611             UnicodeString text, glyphs, indices, positions;
612             int32_t glyphCount = 0, indexCount = 0, positionCount = 0;
613             TestResult expected = {0, NULL, NULL, NULL};
614             TestResult actual   = {0, NULL, NULL, NULL};
615             LEErrorCode success = LE_NO_ERROR;
616             LayoutEngine *engine = NULL;
617 
618             uscript_getCode(script, &scriptCode, 1, &status);
619             if (LE_FAILURE(status)) {
620                 log_err("invalid script name: %s.\n", script);
621                 goto free_c_strings;
622             }
623 
624             if (lang != NULL) {
625                 languageCode = getLanguageCode(lang);
626 
627                 if (languageCode < 0) {
628                     log_err("invalid language name: %s.\n", lang);
629                     goto free_c_strings;
630                 }
631             }
632 
633             while((element = testCase->nextChildElement(ec)) != NULL) {
634                 UnicodeString tag = element->getTagName();
635 
636                 // TODO: make sure that each element is only used once.
637                 if (tag.compare(test_font) == 0) {
638                     char *fontName  = getCString(element->getAttribute(name_attr));
639                     char *fontVer   = getCString(element->getAttribute(ver_attr));
640                     char *fontCksum = getCString(element->getAttribute(cksum_attr));
641 
642                     font = openFont(fontName, fontCksum, fontVer, id);
643                     freeCString(fontCksum);
644                     freeCString(fontVer);
645                     freeCString(fontName);
646 
647                     if (font == NULL) {
648                         // warning message already displayed...
649                         goto free_c_strings;
650                     }
651                 } else if (tag.compare(test_text) == 0) {
652                     text = element->getText(TRUE);
653                     charCount = text.length();
654                 } else if (tag.compare(result_glyphs) == 0) {
655                     glyphs = element->getText(TRUE);
656                 } else if (tag.compare(result_indices) == 0) {
657                     indices = element->getText(TRUE);
658                 } else if (tag.compare(result_positions) == 0) {
659                     positions = element->getText(TRUE);
660                 } else {
661                     // an unknown tag...
662                     char *cTag = getCString(&tag);
663 
664                     log_info("Test %s: unknown element with tag \"%s\"\n", id, cTag);
665                     freeCString(cTag);
666                 }
667             }
668 
669             // TODO: make sure that the font, test-text, result-glyphs, result-indices and result-positions
670             // have all been provided
671             if (font == NULL) {
672                 LEErrorCode fontStatus = LE_NO_ERROR;
673 
674                 font = new SimpleFontInstance(12, fontStatus);
675                 typoFlags |= 0x80000000L;  // use CharSubstitutionFilter...
676             }
677 
678             expected.glyphs    = (LEGlyphID *) getHexArray(glyphs, glyphCount);
679             expected.indices   = (le_int32 *)  getHexArray(indices, indexCount);
680             expected.positions = getFloatArray(positions, positionCount);
681 
682             expected.glyphCount = glyphCount;
683 
684             if (glyphCount < charCount || indexCount != glyphCount || positionCount < glyphCount * 2 + 2) {
685                 log_err("Test %s: inconsistent input data: charCount = %d, glyphCount = %d, indexCount = %d, positionCount = %d\n",
686                     id, charCount, glyphCount, indexCount, positionCount);
687                 goto free_expected;
688             };
689 
690             engine = LayoutEngine::layoutEngineFactory(font, scriptCode, languageCode, typoFlags, success);
691 
692             if (LE_FAILURE(success)) {
693                 log_err("Test %s: could not create a LayoutEngine.\n", id);
694                 goto free_expected;
695             }
696 
697             actual.glyphCount = engine->layoutChars(text.getBuffer(), 0, charCount, charCount, getRTL(text), 0, 0, success);
698 
699             actual.glyphs    = NEW_ARRAY(LEGlyphID, actual.glyphCount);
700             actual.indices   = NEW_ARRAY(le_int32, actual.glyphCount);
701             actual.positions = NEW_ARRAY(float, actual.glyphCount * 2 + 2);
702 
703             engine->getGlyphs(actual.glyphs, success);
704             engine->getCharIndices(actual.indices, success);
705             engine->getGlyphPositions(actual.positions, success);
706 
707             compareResults(id, &expected, &actual);
708 
709             DELETE_ARRAY(actual.positions);
710             DELETE_ARRAY(actual.indices);
711             DELETE_ARRAY(actual.glyphs);
712 
713             delete engine;
714 
715 free_expected:
716             DELETE_ARRAY(expected.positions);
717             DELETE_ARRAY(expected.indices);
718             DELETE_ARRAY(expected.glyphs);
719 
720             delete font;
721 
722 free_c_strings:
723             freeCString(lang);
724             freeCString(script);
725             freeCString(id);
726         }
727     }
728 
729     delete root;
730     delete parser;
731 #endif
732 }
733 U_CDECL_END
734 
735 U_CDECL_BEGIN
736 /*
737  * From ticket:5923:
738  *
739  * Build a paragraph that contains a mixture of left to right and right to left text.
740  * Break it into multiple lines and make sure that the glyphToCharMap for run in each
741  * line is correct.
742  *
743  * Note: it might be a good idea to also check the glyphs and positions for each run,
744  * that we get the expected number of runs per line and that the line breaks are where
745  * we expect them to be. Really, it would be a good idea to make a whole test suite
746  * for ParagraphLayout.
747  */
GlyphToCharTest(void)748 static void U_CALLCONV GlyphToCharTest(void)
749 {
750     LEErrorCode status = LE_NO_ERROR;
751     LEFontInstance *font;
752     FontRuns fontRuns(0);
753     ParagraphLayout *paragraphLayout;
754     const ParagraphLayout::Line *line;
755     /*
756      * This is the same text that's in <icu>/source/samples/layout/Sample.txt
757      */
758     LEUnicode chars[] = {
759         /*BOM*/ 0x0054, 0x0068, 0x0065, 0x0020, 0x004c, 0x0061, 0x0079,
760         0x006f, 0x0075, 0x0074, 0x0045, 0x006e, 0x0067, 0x0069, 0x006e,
761         0x0065, 0x0020, 0x0064, 0x006f, 0x0065, 0x0073, 0x0020, 0x0061,
762         0x006c, 0x006c, 0x0020, 0x0074, 0x0068, 0x0065, 0x0020, 0x0077,
763         0x006f, 0x0072, 0x006b, 0x0020, 0x006e, 0x0065, 0x0063, 0x0065,
764         0x0073, 0x0073, 0x0061, 0x0072, 0x0079, 0x0020, 0x0074, 0x006f,
765         0x0020, 0x0064, 0x0069, 0x0073, 0x0070, 0x006c, 0x0061, 0x0079,
766         0x0020, 0x0055, 0x006e, 0x0069, 0x0063, 0x006f, 0x0064, 0x0065,
767         0x0020, 0x0074, 0x0065, 0x0078, 0x0074, 0x0020, 0x0077, 0x0072,
768         0x0069, 0x0074, 0x0074, 0x0065, 0x006e, 0x0020, 0x0069, 0x006e,
769         0x0020, 0x006c, 0x0061, 0x006e, 0x0067, 0x0075, 0x0061, 0x0067,
770         0x0065, 0x0073, 0x0020, 0x0077, 0x0069, 0x0074, 0x0068, 0x0020,
771         0x0063, 0x006f, 0x006d, 0x0070, 0x006c, 0x0065, 0x0078, 0x0020,
772         0x0077, 0x0072, 0x0069, 0x0074, 0x0069, 0x006e, 0x0067, 0x0020,
773         0x0073, 0x0079, 0x0073, 0x0074, 0x0065, 0x006d, 0x0073, 0x0020,
774         0x0073, 0x0075, 0x0063, 0x0068, 0x0020, 0x0061, 0x0073, 0x0020,
775         0x0048, 0x0069, 0x006e, 0x0064, 0x0069, 0x0020, 0x0028, 0x0939,
776         0x093f, 0x0928, 0x094d, 0x0926, 0x0940, 0x0029, 0x0020, 0x0054,
777         0x0068, 0x0061, 0x0069, 0x0020, 0x0028, 0x0e44, 0x0e17, 0x0e22,
778         0x0029, 0x0020, 0x0061, 0x006e, 0x0064, 0x0020, 0x0041, 0x0072,
779         0x0061, 0x0062, 0x0069, 0x0063, 0x0020, 0x0028, 0x0627, 0x0644,
780         0x0639, 0x0631, 0x0628, 0x064a, 0x0629, 0x0029, 0x002e, 0x0020,
781         0x0048, 0x0065, 0x0072, 0x0065, 0x0027, 0x0073, 0x0020, 0x0061,
782         0x0020, 0x0073, 0x0061, 0x006d, 0x0070, 0x006c, 0x0065, 0x0020,
783         0x006f, 0x0066, 0x0020, 0x0073, 0x006f, 0x006d, 0x0065, 0x0020,
784         0x0074, 0x0065, 0x0078, 0x0074, 0x0020, 0x0077, 0x0072, 0x0069,
785         0x0074, 0x0074, 0x0065, 0x006e, 0x0020, 0x0069, 0x006e, 0x0020,
786         0x0053, 0x0061, 0x006e, 0x0073, 0x006b, 0x0072, 0x0069, 0x0074,
787         0x003a, 0x0020, 0x0936, 0x094d, 0x0930, 0x0940, 0x092e, 0x0926,
788         0x094d, 0x0020, 0x092d, 0x0917, 0x0935, 0x0926, 0x094d, 0x0917,
789         0x0940, 0x0924, 0x093e, 0x0020, 0x0905, 0x0927, 0x094d, 0x092f,
790         0x093e, 0x092f, 0x0020, 0x0905, 0x0930, 0x094d, 0x091c, 0x0941,
791         0x0928, 0x0020, 0x0935, 0x093f, 0x0937, 0x093e, 0x0926, 0x0020,
792         0x092f, 0x094b, 0x0917, 0x0020, 0x0927, 0x0943, 0x0924, 0x0930,
793         0x093e, 0x0937, 0x094d, 0x091f, 0x094d, 0x0930, 0x0020, 0x0909,
794         0x0935, 0x093e, 0x091a, 0x0964, 0x0020, 0x0927, 0x0930, 0x094d,
795         0x092e, 0x0915, 0x094d, 0x0937, 0x0947, 0x0924, 0x094d, 0x0930,
796         0x0947, 0x0020, 0x0915, 0x0941, 0x0930, 0x0941, 0x0915, 0x094d,
797         0x0937, 0x0947, 0x0924, 0x094d, 0x0930, 0x0947, 0x0020, 0x0938,
798         0x092e, 0x0935, 0x0947, 0x0924, 0x093e, 0x0020, 0x092f, 0x0941,
799         0x092f, 0x0941, 0x0924, 0x094d, 0x0938, 0x0935, 0x0903, 0x0020,
800         0x092e, 0x093e, 0x092e, 0x0915, 0x093e, 0x0903, 0x0020, 0x092a,
801         0x093e, 0x0923, 0x094d, 0x0921, 0x0935, 0x093e, 0x0936, 0x094d,
802         0x091a, 0x0948, 0x0935, 0x0020, 0x0915, 0x093f, 0x092e, 0x0915,
803         0x0941, 0x0930, 0x094d, 0x0935, 0x0924, 0x0020, 0x0938, 0x0902,
804         0x091c, 0x092f, 0x0020, 0x0048, 0x0065, 0x0072, 0x0065, 0x0027,
805         0x0073, 0x0020, 0x0061, 0x0020, 0x0073, 0x0061, 0x006d, 0x0070,
806         0x006c, 0x0065, 0x0020, 0x006f, 0x0066, 0x0020, 0x0073, 0x006f,
807         0x006d, 0x0065, 0x0020, 0x0074, 0x0065, 0x0078, 0x0074, 0x0020,
808         0x0077, 0x0072, 0x0069, 0x0074, 0x0074, 0x0065, 0x006e, 0x0020,
809         0x0069, 0x006e, 0x0020, 0x0041, 0x0072, 0x0061, 0x0062, 0x0069,
810         0x0063, 0x003a, 0x0020, 0x0623, 0x0633, 0x0627, 0x0633, 0x064b,
811         0x0627, 0x060c, 0x0020, 0x062a, 0x062a, 0x0639, 0x0627, 0x0645,
812         0x0644, 0x0020, 0x0627, 0x0644, 0x062d, 0x0648, 0x0627, 0x0633,
813         0x064a, 0x0628, 0x0020, 0x0641, 0x0642, 0x0637, 0x0020, 0x0645,
814         0x0639, 0x0020, 0x0627, 0x0644, 0x0623, 0x0631, 0x0642, 0x0627,
815         0x0645, 0x060c, 0x0020, 0x0648, 0x062a, 0x0642, 0x0648, 0x0645,
816         0x0020, 0x0628, 0x062a, 0x062e, 0x0632, 0x064a, 0x0646, 0x0020,
817         0x0627, 0x0644, 0x0623, 0x062d, 0x0631, 0x0641, 0x0020, 0x0648,
818         0x0627, 0x0644, 0x0645, 0x062d, 0x0627, 0x0631, 0x0641, 0x0020,
819         0x0627, 0x0644, 0x0623, 0x062e, 0x0631, 0x0649, 0x0020, 0x0628,
820         0x0639, 0x062f, 0x0020, 0x0623, 0x0646, 0x0020, 0x062a, 0x064f,
821         0x0639, 0x0637, 0x064a, 0x0020, 0x0631, 0x0642, 0x0645, 0x0627,
822         0x0020, 0x0645, 0x0639, 0x064a, 0x0646, 0x0627, 0x0020, 0x0644,
823         0x0643, 0x0644, 0x0020, 0x0648, 0x0627, 0x062d, 0x062f, 0x0020,
824         0x0645, 0x0646, 0x0647, 0x0627, 0x002e, 0x0020, 0x0648, 0x0642,
825         0x0628, 0x0644, 0x0020, 0x0627, 0x062e, 0x062a, 0x0631, 0x0627,
826         0x0639, 0x0020, 0x0022, 0x064a, 0x0648, 0x0646, 0x0650, 0x0643,
827         0x0648, 0x062f, 0x0022, 0x060c, 0x0020, 0x0643, 0x0627, 0x0646,
828         0x0020, 0x0647, 0x0646, 0x0627, 0x0643, 0x0020, 0x0645, 0x0626,
829         0x0627, 0x062a, 0x0020, 0x0627, 0x0644, 0x0623, 0x0646, 0x0638,
830         0x0645, 0x0629, 0x0020, 0x0644, 0x0644, 0x062a, 0x0634, 0x0641,
831         0x064a, 0x0631, 0x0020, 0x0648, 0x062a, 0x062e, 0x0635, 0x064a,
832         0x0635, 0x0020, 0x0647, 0x0630, 0x0647, 0x0020, 0x0627, 0x0644,
833         0x0623, 0x0631, 0x0642, 0x0627, 0x0645, 0x0020, 0x0644, 0x0644,
834         0x0645, 0x062d, 0x0627, 0x0631, 0x0641, 0x060c, 0x0020, 0x0648,
835         0x0644, 0x0645, 0x0020, 0x064a, 0x0648, 0x062c, 0x062f, 0x0020,
836         0x0646, 0x0638, 0x0627, 0x0645, 0x0020, 0x062a, 0x0634, 0x0641,
837         0x064a, 0x0631, 0x0020, 0x0648, 0x0627, 0x062d, 0x062f, 0x0020,
838         0x064a, 0x062d, 0x062a, 0x0648, 0x064a, 0x0020, 0x0639, 0x0644,
839         0x0649, 0x0020, 0x062c, 0x0645, 0x064a, 0x0639, 0x0020, 0x0627,
840         0x0644, 0x0645, 0x062d, 0x0627, 0x0631, 0x0641, 0x0020, 0x0627,
841         0x0644, 0x0636, 0x0631, 0x0648, 0x0631, 0x064a, 0x0629, 0x0020,
842         0x0061, 0x006e, 0x0064, 0x0020, 0x0068, 0x0065, 0x0072, 0x0065,
843         0x0027, 0x0073, 0x0020, 0x0061, 0x0020, 0x0073, 0x0061, 0x006d,
844         0x0070, 0x006c, 0x0065, 0x0020, 0x006f, 0x0066, 0x0020, 0x0073,
845         0x006f, 0x006d, 0x0065, 0x0020, 0x0074, 0x0065, 0x0078, 0x0074,
846         0x0020, 0x0077, 0x0072, 0x0069, 0x0074, 0x0074, 0x0065, 0x006e,
847         0x0020, 0x0069, 0x006e, 0x0020, 0x0054, 0x0068, 0x0061, 0x0069,
848         0x003a, 0x0020, 0x0e1a, 0x0e17, 0x0e17, 0x0e35, 0x0e48, 0x0e51,
849         0x0e1e, 0x0e32, 0x0e22, 0x0e38, 0x0e44, 0x0e0b, 0x0e42, 0x0e04,
850         0x0e25, 0x0e19, 0x0e42, 0x0e14, 0x0e42, 0x0e23, 0x0e18, 0x0e35,
851         0x0e2d, 0x0e32, 0x0e28, 0x0e31, 0x0e22, 0x0e2d, 0x0e22, 0x0e39,
852         0x0e48, 0x0e17, 0x0e48, 0x0e32, 0x0e21, 0x0e01, 0x0e25, 0x0e32,
853         0x0e07, 0x0e17, 0x0e38, 0x0e48, 0x0e07, 0x0e43, 0x0e2b, 0x0e0d,
854         0x0e48, 0x0e43, 0x0e19, 0x0e41, 0x0e04, 0x0e19, 0x0e0b, 0x0e31,
855         0x0e2a, 0x0e01, 0x0e31, 0x0e1a, 0x0e25, 0x0e38, 0x0e07, 0x0e40,
856         0x0e2e, 0x0e19, 0x0e23, 0x0e35, 0x0e0a, 0x0e32, 0x0e27, 0x0e44,
857         0x0e23, 0x0e48, 0x0e41, 0x0e25, 0x0e30, 0x0e1b, 0x0e49, 0x0e32,
858         0x0e40, 0x0e2d, 0x0e47, 0x0e21, 0x0e20, 0x0e23, 0x0e23, 0x0e22,
859         0x0e32, 0x0e0a, 0x0e32, 0x0e27, 0x0e44, 0x0e23, 0x0e48, 0x0e1a,
860         0x0e49, 0x0e32, 0x0e19, 0x0e02, 0x0e2d, 0x0e07, 0x0e1e, 0x0e27,
861         0x0e01, 0x0e40, 0x0e02, 0x0e32, 0x0e2b, 0x0e25, 0x0e31, 0x0e07,
862         0x0e40, 0x0e25, 0x0e47, 0x0e01, 0x0e40, 0x0e1e, 0x0e23, 0x0e32,
863         0x0e30, 0x0e44, 0x0e21, 0x0e49, 0x0e2a, 0x0e23, 0x0e49, 0x0e32,
864         0x0e07, 0x0e1a, 0x0e49, 0x0e32, 0x0e19, 0x0e15, 0x0e49, 0x0e2d,
865         0x0e07, 0x0e02, 0x0e19, 0x0e21, 0x0e32, 0x0e14, 0x0e49, 0x0e27,
866         0x0e22, 0x0e40, 0x0e01, 0x0e27, 0x0e35, 0x0e22, 0x0e19, 0x0e40,
867         0x0e1b, 0x0e47, 0x0e19, 0x0e23, 0x0e30, 0x0e22, 0x0e30, 0x0e17,
868         0x0e32, 0x0e07, 0x0e2b, 0x0e25, 0x0e32, 0x0e22, 0x0e44, 0x0e21,
869         0x0e25, 0x0e4c
870     };
871     le_int32 charCount = LE_ARRAY_SIZE(chars);
872     le_int32 charIndex = 0, lineNumber = 1;
873     const float lineWidth = 600;
874 
875     font = new SimpleFontInstance(12, status);
876 
877     if (LE_FAILURE(status)) {
878         goto finish;
879     }
880 
881     fontRuns.add(font, charCount);
882 
883     paragraphLayout = new ParagraphLayout(chars, charCount, &fontRuns, NULL, NULL, NULL, 0, FALSE, status);
884 
885     if (LE_FAILURE(status)) {
886         goto close_font;
887     }
888 
889     paragraphLayout->reflow();
890     while ((line = paragraphLayout->nextLine(lineWidth)) != NULL) {
891         le_int32 runCount = line->countRuns();
892 
893         for(le_int32 run = 0; run < runCount; run += 1) {
894             const ParagraphLayout::VisualRun *visualRun = line->getVisualRun(run);
895             le_int32 glyphCount = visualRun->getGlyphCount();
896             const le_int32 *glyphToCharMap = visualRun->getGlyphToCharMap();
897 
898             if (visualRun->getDirection() == UBIDI_RTL) {
899                 /*
900                  * For a right to left run, make sure that the character indices
901                  * increase from the right most glyph to the left most glyph. If
902                  * there are any one to many glyph substitutions, we might get several
903                  * glyphs in a row with the same character index.
904                  */
905                 for(le_int32 i = glyphCount - 1; i >= 0; i -= 1) {
906                     le_int32 ix = glyphToCharMap[i];
907 
908                     if (ix != charIndex) {
909                         if (ix != charIndex - 1) {
910                             log_err("Bad glyph to char index for glyph %d on line %d: expected %d, got %d\n",
911                                 i, lineNumber, charIndex, ix);
912                             goto close_paragraph; // once there's one error, we can't count on anything else...
913                         }
914                     } else {
915                         charIndex += 1;
916                     }
917                 }
918             } else {
919                 /*
920                  * We can't just check the order of the character indices
921                  * for left to right runs because Indic text might have been
922                  * reordered. What we can do is find the minimum and maximum
923                  * character indices in the run and make sure that the minimum
924                  * is equal to charIndex and then advance charIndex to the maximum.
925                  */
926                 le_int32 minIndex = 0x7FFFFFFF, maxIndex = -1;
927 
928                 for(le_int32 i = 0; i < glyphCount; i += 1) {
929                     le_int32 ix = glyphToCharMap[i];
930 
931                     if (ix > maxIndex) {
932                         maxIndex = ix;
933                     }
934 
935                     if (ix < minIndex) {
936                         minIndex = ix;
937                     }
938                 }
939 
940                 if (minIndex != charIndex) {
941                     log_err("Bad minIndex for run %d on line %d: expected %d, got %d\n",
942                         run, lineNumber, charIndex, minIndex);
943                     goto close_paragraph; // once there's one error, we can't count on anything else...
944                 }
945 
946                 charIndex = maxIndex + 1;
947             }
948         }
949 
950         lineNumber += 1;
951     }
952 close_paragraph:
953     delete paragraphLayout;
954 
955 close_font:
956     delete font;
957 
958 finish:
959     return;
960 }
961 U_CDECL_END
962 
addAllTests(TestNode ** root)963 static void addAllTests(TestNode **root)
964 {
965     addTest(root, &ScriptTest,      "api/ScriptTest");
966     addTest(root, &ParamTest,       "api/ParameterTest");
967     addTest(root, &FactoryTest,     "api/FactoryTest");
968     addTest(root, &AccessTest,      "layout/AccessTest");
969     addTest(root, &DataDrivenTest,  "layout/DataDrivenTest");
970     addTest(root, &GlyphToCharTest, "paragraph/GlyphToCharTest");
971 
972     addCTests(root);
973 }
974 
975 /* returns the path to icu/source/data/out */
ctest_dataOutDir()976 static const char *ctest_dataOutDir()
977 {
978     static const char *dataOutDir = NULL;
979 
980     if(dataOutDir) {
981         return dataOutDir;
982     }
983 
984     /* U_TOPBUILDDIR is set by the makefiles on UNIXes when building cintltst and intltst
985     //              to point to the top of the build hierarchy, which may or
986     //              may not be the same as the source directory, depending on
987     //              the configure options used.  At any rate,
988     //              set the data path to the built data from this directory.
989     //              The value is complete with quotes, so it can be used
990     //              as-is as a string constant.
991     */
992 #if defined (U_TOPBUILDDIR)
993     {
994         dataOutDir = U_TOPBUILDDIR "data"U_FILE_SEP_STRING"out"U_FILE_SEP_STRING;
995     }
996 #else
997 
998     /* On Windows, the file name obtained from __FILE__ includes a full path.
999      *             This file is "wherever\icu\source\test\cintltst\cintltst.c"
1000      *             Change to    "wherever\icu\source\data"
1001      */
1002     {
1003         static char p[sizeof(__FILE__) + 20];
1004         char *pBackSlash;
1005         int i;
1006 
1007         strcpy(p, __FILE__);
1008         /* We want to back over three '\' chars.                            */
1009         /*   Only Windows should end up here, so looking for '\' is safe.   */
1010         for (i=1; i<=3; i++) {
1011             pBackSlash = strrchr(p, U_FILE_SEP_CHAR);
1012             if (pBackSlash != NULL) {
1013                 *pBackSlash = 0;        /* Truncate the string at the '\'   */
1014             }
1015         }
1016 
1017         if (pBackSlash != NULL) {
1018             /* We found and truncated three names from the path.
1019              *  Now append "source\data" and set the environment
1020              */
1021             strcpy(pBackSlash, U_FILE_SEP_STRING "data" U_FILE_SEP_STRING "out" U_FILE_SEP_STRING);
1022             dataOutDir = p;
1023         }
1024         else {
1025             /* __FILE__ on MSVC7 does not contain the directory */
1026             FILE *file = fopen(".."U_FILE_SEP_STRING".."U_FILE_SEP_STRING "data" U_FILE_SEP_STRING "Makefile.in", "r");
1027             if (file) {
1028                 fclose(file);
1029                 dataOutDir = ".."U_FILE_SEP_STRING".."U_FILE_SEP_STRING "data" U_FILE_SEP_STRING "out" U_FILE_SEP_STRING;
1030             }
1031             else {
1032                 dataOutDir = ".."U_FILE_SEP_STRING".."U_FILE_SEP_STRING".."U_FILE_SEP_STRING "data" U_FILE_SEP_STRING "out" U_FILE_SEP_STRING;
1033             }
1034         }
1035     }
1036 #endif
1037 
1038     return dataOutDir;
1039 }
1040 
1041 /*  ctest_setICU_DATA  - if the ICU_DATA environment variable is not already
1042  *                       set, try to deduce the directory in which ICU was built,
1043  *                       and set ICU_DATA to "icu/source/data" in that location.
1044  *                       The intent is to allow the tests to have a good chance
1045  *                       of running without requiring that the user manually set
1046  *                       ICU_DATA.  Common data isn't a problem, since it is
1047  *                       picked up via a static (build time) reference, but the
1048  *                       tests dynamically load some data.
1049  */
ctest_setICU_DATA()1050 static void ctest_setICU_DATA() {
1051 
1052     /* No location for the data dir was identifiable.
1053      *   Add other fallbacks for the test data location here if the need arises
1054      */
1055     if (getenv("ICU_DATA") == NULL) {
1056         /* If ICU_DATA isn't set, set it to the usual location */
1057         u_setDataDirectory(ctest_dataOutDir());
1058     }
1059 }
1060 
main(int argc,char * argv[])1061 int main(int argc, char* argv[])
1062 {
1063     int32_t nerrors = 0;
1064     TestNode *root = NULL;
1065     UErrorCode errorCode = U_ZERO_ERROR;
1066     UDate startTime, endTime;
1067     int32_t diffTime;
1068 
1069     startTime = uprv_getUTCtime();
1070 
1071     if (!initArgs(argc, argv, NULL, NULL)) {
1072         /* Error already displayed. */
1073         return -1;
1074     }
1075 
1076     /* Check whether ICU will initialize without forcing the build data directory into
1077     *  the ICU_DATA path.  Success here means either the data dll contains data, or that
1078     *  this test program was run with ICU_DATA set externally.  Failure of this check
1079     *  is normal when ICU data is not packaged into a shared library.
1080     *
1081     *  Whether or not this test succeeds, we want to cleanup and reinitialize
1082     *  with a data path so that data loading from individual files can be tested.
1083     */
1084     u_init(&errorCode);
1085 
1086     if (U_FAILURE(errorCode)) {
1087         fprintf(stderr,
1088             "#### Note:  ICU Init without build-specific setDataDirectory() failed.\n");
1089     }
1090 
1091     u_cleanup();
1092     errorCode = U_ZERO_ERROR;
1093 
1094     if (!initArgs(argc, argv, NULL, NULL)) {
1095         /* Error already displayed. */
1096         return -1;
1097     }
1098 /* Initialize ICU */
1099     ctest_setICU_DATA();    /* u_setDataDirectory() must happen Before u_init() */
1100     u_init(&errorCode);
1101 
1102     if (U_FAILURE(errorCode)) {
1103         fprintf(stderr,
1104             "#### ERROR! %s: u_init() failed with status = \"%s\".\n"
1105             "*** Check the ICU_DATA environment variable and \n"
1106             "*** check that the data files are present.\n", argv[0], u_errorName(errorCode));
1107         return 1;
1108     }
1109 
1110     addAllTests(&root);
1111     nerrors = runTestRequest(root, argc, argv);
1112 
1113     cleanUpTestTree(root);
1114     u_cleanup();
1115 
1116     endTime = uprv_getUTCtime();
1117     diffTime = (int32_t)(endTime - startTime);
1118     printf("Elapsed Time: %02d:%02d:%02d.%03d\n",
1119         (int)((diffTime%U_MILLIS_PER_DAY)/U_MILLIS_PER_HOUR),
1120         (int)((diffTime%U_MILLIS_PER_HOUR)/U_MILLIS_PER_MINUTE),
1121         (int)((diffTime%U_MILLIS_PER_MINUTE)/U_MILLIS_PER_SECOND),
1122         (int)(diffTime%U_MILLIS_PER_SECOND));
1123 
1124     return nerrors;
1125 }
1126 
1127