1 // 2016 and later: Unicode, Inc. and others. 2 // License & terms of use: http://www.unicode.org/copyright.html 3 /*********************************************************************** 4 * COPYRIGHT: 5 * Copyright (c) 1997-2015, International Business Machines Corporation 6 * and others. All Rights Reserved. 7 ***********************************************************************/ 8 9 #include "unicode/utypes.h" 10 11 #if !UCONFIG_NO_FORMATTING 12 13 #include "unicode/datefmt.h" 14 #include "unicode/smpdtfmt.h" 15 #include "unicode/gregocal.h" 16 #include "dtfmtrtts.h" 17 #include "caltest.h" 18 #include "cstring.h" 19 20 #include <stdio.h> 21 #include <string.h> 22 23 // ***************************************************************************** 24 // class DateFormatRoundTripTest 25 // ***************************************************************************** 26 27 // Useful for turning up subtle bugs: Change the following to TRUE, recompile, 28 // and run while at lunch. 29 // Warning -- makes test run infinite loop!!! 30 #ifndef INFINITE 31 #define INFINITE 0 32 #endif 33 34 // Define this to test just a single locale 35 //#define TEST_ONE_LOC "cs_CZ" 36 37 // If SPARSENESS is > 0, we don't run each exhaustive possibility. 38 // There are 24 total possible tests per each locale. A SPARSENESS 39 // of 12 means we run half of them. A SPARSENESS of 23 means we run 40 // 1 of them. SPARSENESS _must_ be in the range 0..23. 41 int32_t DateFormatRoundTripTest::SPARSENESS = 0; 42 int32_t DateFormatRoundTripTest::TRIALS = 4; 43 int32_t DateFormatRoundTripTest::DEPTH = 5; 44 45 DateFormatRoundTripTest::DateFormatRoundTripTest() : dateFormat(0) { 46 } 47 48 DateFormatRoundTripTest::~DateFormatRoundTripTest() { 49 delete dateFormat; 50 } 51 52 #define CASE(id,test) case id: name = #test; if (exec) { logln(#test "---"); logln((UnicodeString)""); test(); } break; 53 54 void 55 DateFormatRoundTripTest::runIndexedTest( int32_t index, UBool exec, const char* &name, char* par ) 56 { 57 optionv = (par && *par=='v'); 58 switch (index) { 59 CASE(0,TestDateFormatRoundTrip) 60 CASE(1, TestCentury) 61 default: name = ""; break; 62 } 63 } 64 65 UBool 66 DateFormatRoundTripTest::failure(UErrorCode status, const char* msg) 67 { 68 if(U_FAILURE(status)) { 69 errln(UnicodeString("FAIL: ") + msg + " failed, error " + u_errorName(status)); 70 return TRUE; 71 } 72 73 return FALSE; 74 } 75 76 UBool 77 DateFormatRoundTripTest::failure(UErrorCode status, const char* msg, const UnicodeString& str) 78 { 79 if(U_FAILURE(status)) { 80 UnicodeString escaped; 81 escape(str,escaped); 82 errln(UnicodeString("FAIL: ") + msg + " failed, error " + u_errorName(status) + ", str=" + escaped); 83 return TRUE; 84 } 85 86 return FALSE; 87 } 88 89 void DateFormatRoundTripTest::TestCentury() 90 { 91 UErrorCode status = U_ZERO_ERROR; 92 Locale locale("es_PA"); 93 UnicodeString pattern = "MM/dd/yy hh:mm:ss a z"; 94 SimpleDateFormat fmt(pattern, locale, status); 95 if (U_FAILURE(status)) { 96 dataerrln("Fail: construct SimpleDateFormat: %s", u_errorName(status)); 97 return; 98 } 99 UDate date[] = {-55018555891590.05, 0, 0}; 100 UnicodeString result[2]; 101 102 fmt.format(date[0], result[0]); 103 date[1] = fmt.parse(result[0], status); 104 fmt.format(date[1], result[1]); 105 date[2] = fmt.parse(result[1], status); 106 107 /* This test case worked OK by accident before. date[1] != date[0], 108 * because we use -80/+20 year window for 2-digit year parsing. 109 * (date[0] is in year 1926, date[1] is in year 2026.) result[1] set 110 * by the first format call returns "07/13/26 07:48:28 p.m. PST", 111 * which is correct, because DST was not used in year 1926 in zone 112 * America/Los_Angeles. When this is parsed, date[1] becomes a time 113 * in 2026, which is "07/13/26 08:48:28 p.m. PDT". There was a zone 114 * offset calculation bug that observed DST in 1926, which was resolved. 115 * Before the bug was resolved, result[0] == result[1] was true, 116 * but after the bug fix, the expected result is actually 117 * result[0] != result[1]. -Yoshito 118 */ 119 /* TODO: We need to review this code and clarify what we really 120 * want to test here. 121 */ 122 //if (date[1] != date[2] || result[0] != result[1]) { 123 if (date[1] != date[2]) { 124 errln("Round trip failure: \"%S\" (%f), \"%S\" (%f)", result[0].getBuffer(), date[1], result[1].getBuffer(), date[2]); 125 } 126 } 127 128 // == 129 130 void DateFormatRoundTripTest::TestDateFormatRoundTrip() 131 { 132 UErrorCode status = U_ZERO_ERROR; 133 134 getFieldCal = Calendar::createInstance(status); 135 if (U_FAILURE(status)) { 136 dataerrln("Fail: Calendar::createInstance: %s", u_errorName(status)); 137 return; 138 } 139 140 141 int32_t locCount = 0; 142 const Locale *avail = DateFormat::getAvailableLocales(locCount); 143 logln("DateFormat available locales: %d", locCount); 144 if(quick) { 145 SPARSENESS = 18; 146 logln("Quick mode: only testing SPARSENESS = 18"); 147 } 148 TimeZone *tz = TimeZone::createDefault(); 149 UnicodeString temp; 150 logln("Default TimeZone: " + tz->getID(temp)); 151 delete tz; 152 153 #ifdef TEST_ONE_LOC // define this to just test ONE locale. 154 Locale loc(TEST_ONE_LOC); 155 test(loc); 156 #if INFINITE 157 for(;;) { 158 test(loc); 159 } 160 #endif 161 162 #else 163 # if INFINITE 164 // Special infinite loop test mode for finding hard to reproduce errors 165 Locale loc = Locale::getDefault(); 166 logln("ENTERING INFINITE TEST LOOP FOR Locale: " + loc.getDisplayName(temp)); 167 for(;;) 168 test(loc); 169 # else 170 test(Locale::getDefault()); 171 172 #if 1 173 // installed locales 174 for (int i=0; i < locCount; ++i) { 175 test(avail[i]); 176 } 177 #endif 178 179 #if 1 180 // special locales 181 int32_t jCount = CalendarTest::testLocaleCount(); 182 for (int32_t j=0; j < jCount; ++j) { 183 test(Locale(CalendarTest::testLocaleID(j))); 184 } 185 #endif 186 187 # endif 188 #endif 189 190 delete getFieldCal; 191 } 192 193 static const char *styleName(DateFormat::EStyle s) 194 { 195 switch(s) 196 { 197 case DateFormat::SHORT: return "SHORT"; 198 case DateFormat::MEDIUM: return "MEDIUM"; 199 case DateFormat::LONG: return "LONG"; 200 case DateFormat::FULL: return "FULL"; 201 // case DateFormat::DEFAULT: return "DEFAULT"; 202 case DateFormat::DATE_OFFSET: return "DATE_OFFSET"; 203 case DateFormat::NONE: return "NONE"; 204 case DateFormat::DATE_TIME: return "DATE_TIME"; 205 default: return "Unknown"; 206 } 207 } 208 209 void DateFormatRoundTripTest::test(const Locale& loc) 210 { 211 UnicodeString temp; 212 #if !INFINITE 213 logln("Locale: " + loc.getDisplayName(temp)); 214 #endif 215 216 // Total possibilities = 24 217 // 4 date 218 // 4 time 219 // 16 date-time 220 UBool TEST_TABLE [24];//= new boolean[24]; 221 int32_t i = 0; 222 for(i = 0; i < 24; ++i) 223 TEST_TABLE[i] = TRUE; 224 225 // If we have some sparseness, implement it here. Sparseness decreases 226 // test time by eliminating some tests, up to 23. 227 for(i = 0; i < SPARSENESS; ) { 228 int random = (int)(randFraction() * 24); 229 if (random >= 0 && random < 24 && TEST_TABLE[i]) { 230 TEST_TABLE[i] = FALSE; 231 ++i; 232 } 233 } 234 235 int32_t itable = 0; 236 int32_t style = 0; 237 for(style = DateFormat::FULL; style <= DateFormat::SHORT; ++style) { 238 if(TEST_TABLE[itable++]) { 239 logln("Testing style " + UnicodeString(styleName((DateFormat::EStyle)style))); 240 DateFormat *df = DateFormat::createDateInstance((DateFormat::EStyle)style, loc); 241 if(df == NULL) { 242 errln(UnicodeString("Could not DF::createDateInstance ") + UnicodeString(styleName((DateFormat::EStyle)style)) + " Locale: " + loc.getDisplayName(temp)); 243 } else { 244 test(df, loc); 245 delete df; 246 } 247 } 248 } 249 250 for(style = DateFormat::FULL; style <= DateFormat::SHORT; ++style) { 251 if (TEST_TABLE[itable++]) { 252 logln("Testing style " + UnicodeString(styleName((DateFormat::EStyle)style))); 253 DateFormat *df = DateFormat::createTimeInstance((DateFormat::EStyle)style, loc); 254 if(df == NULL) { 255 errln(UnicodeString("Could not DF::createTimeInstance ") + UnicodeString(styleName((DateFormat::EStyle)style)) + " Locale: " + loc.getDisplayName(temp)); 256 } else { 257 test(df, loc, TRUE); 258 delete df; 259 } 260 } 261 } 262 263 for(int32_t dstyle = DateFormat::FULL; dstyle <= DateFormat::SHORT; ++dstyle) { 264 for(int32_t tstyle = DateFormat::FULL; tstyle <= DateFormat::SHORT; ++tstyle) { 265 if(TEST_TABLE[itable++]) { 266 logln("Testing dstyle" + UnicodeString(styleName((DateFormat::EStyle)dstyle)) + ", tstyle" + UnicodeString(styleName((DateFormat::EStyle)tstyle)) ); 267 DateFormat *df = DateFormat::createDateTimeInstance((DateFormat::EStyle)dstyle, (DateFormat::EStyle)tstyle, loc); 268 if(df == NULL) { 269 dataerrln(UnicodeString("Could not DF::createDateTimeInstance ") + UnicodeString(styleName((DateFormat::EStyle)dstyle)) + ", tstyle" + UnicodeString(styleName((DateFormat::EStyle)tstyle)) + "Locale: " + loc.getDisplayName(temp)); 270 } else { 271 test(df, loc); 272 delete df; 273 } 274 } 275 } 276 } 277 } 278 279 void DateFormatRoundTripTest::test(DateFormat *fmt, const Locale &origLocale, UBool timeOnly) 280 { 281 UnicodeString pat; 282 if(fmt->getDynamicClassID() != SimpleDateFormat::getStaticClassID()) { 283 errln("DateFormat wasn't a SimpleDateFormat"); 284 return; 285 } 286 287 UBool isGregorian = FALSE; 288 UErrorCode minStatus = U_ZERO_ERROR; 289 if(fmt->getCalendar() == NULL) { 290 errln((UnicodeString)"DateFormatRoundTripTest::test, DateFormat getCalendar() returns null for " + origLocale.getName()); 291 return; 292 } 293 UDate minDate = CalendarTest::minDateOfCalendar(*fmt->getCalendar(), isGregorian, minStatus); 294 if(U_FAILURE(minStatus)) { 295 errln((UnicodeString)"Failure getting min date for " + origLocale.getName()); 296 return; 297 } 298 //logln(UnicodeString("Min date is ") + fullFormat(minDate) + " for " + origLocale.getName()); 299 300 pat = ((SimpleDateFormat*)fmt)->toPattern(pat); 301 302 // NOTE TO MAINTAINER 303 // This indexOf check into the pattern needs to be refined to ignore 304 // quoted characters. Currently, this isn't a problem with the locale 305 // patterns we have, but it may be a problem later. 306 307 UBool hasEra = (pat.indexOf(UnicodeString("G")) != -1); 308 UBool hasZoneDisplayName = (pat.indexOf(UnicodeString("z")) != -1) || (pat.indexOf(UnicodeString("v")) != -1) 309 || (pat.indexOf(UnicodeString("V")) != -1); 310 311 // Because patterns contain incomplete data representing the Date, 312 // we must be careful of how we do the roundtrip. We start with 313 // a randomly generated Date because they're easier to generate. 314 // From this we get a string. The string is our real starting point, 315 // because this string should parse the same way all the time. Note 316 // that it will not necessarily parse back to the original date because 317 // of incompleteness in patterns. For example, a time-only pattern won't 318 // parse back to the same date. 319 320 //try { 321 for(int i = 0; i < TRIALS; ++i) { 322 UDate *d = new UDate [DEPTH]; 323 UnicodeString *s = new UnicodeString[DEPTH]; 324 325 if(isGregorian == TRUE) { 326 d[0] = generateDate(); 327 } else { 328 d[0] = generateDate(minDate); 329 } 330 331 UErrorCode status = U_ZERO_ERROR; 332 333 // We go through this loop until we achieve a match or until 334 // the maximum loop count is reached. We record the points at 335 // which the date and the string starts to match. Once matching 336 // starts, it should continue. 337 int loop; 338 int dmatch = 0; // d[dmatch].getTime() == d[dmatch-1].getTime() 339 int smatch = 0; // s[smatch].equals(s[smatch-1]) 340 for(loop = 0; loop < DEPTH; ++loop) { 341 if (loop > 0) { 342 d[loop] = fmt->parse(s[loop-1], status); 343 failure(status, "fmt->parse", s[loop-1]+" in locale: " + origLocale.getName() + " with pattern: " + pat); 344 status = U_ZERO_ERROR; /* any error would have been reported */ 345 } 346 347 s[loop] = fmt->format(d[loop], s[loop]); 348 349 // For displaying which date is being tested 350 //logln(s[loop] + " = " + fullFormat(d[loop])); 351 352 if(s[loop].length() == 0) { 353 errln("FAIL: fmt->format gave 0-length string in " + pat + " with number " + d[loop] + " in locale " + origLocale.getName()); 354 } 355 356 if(loop > 0) { 357 if(smatch == 0) { 358 UBool match = s[loop] == s[loop-1]; 359 if(smatch == 0) { 360 if(match) 361 smatch = loop; 362 } 363 else if( ! match) 364 errln("FAIL: String mismatch after match"); 365 } 366 367 if(dmatch == 0) { 368 // {sfb} watch out here, this might not work 369 UBool match = d[loop]/*.getTime()*/ == d[loop-1]/*.getTime()*/; 370 if(dmatch == 0) { 371 if(match) 372 dmatch = loop; 373 } 374 else if( ! match) 375 errln("FAIL: Date mismatch after match"); 376 } 377 378 if(smatch != 0 && dmatch != 0) 379 break; 380 } 381 } 382 // At this point loop == DEPTH if we've failed, otherwise loop is the 383 // max(smatch, dmatch), that is, the index at which we have string and 384 // date matching. 385 386 // Date usually matches in 2. Exceptions handled below. 387 int maxDmatch = 2; 388 int maxSmatch = 1; 389 if (dmatch > maxDmatch) { 390 // Time-only pattern with zone information and a starting date in PST. 391 if(timeOnly && hasZoneDisplayName) { 392 int32_t startRaw, startDst; 393 fmt->getTimeZone().getOffset(d[0], FALSE, startRaw, startDst, status); 394 failure(status, "TimeZone::getOffset"); 395 // if the start offset is greater than the offset on Jan 1, 1970 396 // in PST, then need one more round trip. There are two cases 397 // fall into this category. The start date is 1) DST or 398 // 2) LMT (GMT-07:52:58). 399 if (startRaw + startDst > -28800000) { 400 maxDmatch = 3; 401 maxSmatch = 2; 402 } 403 } 404 } 405 406 // String usually matches in 1. Exceptions are checked for here. 407 if(smatch > maxSmatch) { // Don't compute unless necessary 408 UBool in0; 409 // Starts in BC, with no era in pattern 410 if( ! hasEra && getField(d[0], UCAL_ERA) == GregorianCalendar::BC) 411 maxSmatch = 2; 412 // Starts in DST, no year in pattern 413 else if((in0=fmt->getTimeZone().inDaylightTime(d[0], status)) && ! failure(status, "gettingDaylightTime") && 414 pat.indexOf(UnicodeString("yyyy")) == -1) 415 maxSmatch = 2; 416 // If we start not in DST, but transition into DST 417 else if (!in0 && 418 fmt->getTimeZone().inDaylightTime(d[1], status) && !failure(status, "gettingDaylightTime")) 419 maxSmatch = 2; 420 // Two digit year with no time zone change, 421 // unless timezone isn't used or we aren't close to the DST changover 422 else if (pat.indexOf(UnicodeString("y")) != -1 423 && pat.indexOf(UnicodeString("yyyy")) == -1 424 && getField(d[0], UCAL_YEAR) 425 != getField(d[dmatch], UCAL_YEAR) 426 && !failure(status, "error status [smatch>maxSmatch]") 427 && ((hasZoneDisplayName 428 && (fmt->getTimeZone().inDaylightTime(d[0], status) 429 == fmt->getTimeZone().inDaylightTime(d[dmatch], status) 430 || getField(d[0], UCAL_MONTH) == UCAL_APRIL 431 || getField(d[0], UCAL_MONTH) == UCAL_OCTOBER)) 432 || !hasZoneDisplayName) 433 ) 434 { 435 maxSmatch = 2; 436 } 437 // If zone display name is used, fallback format might be used before 1970 438 else if (hasZoneDisplayName && d[0] < 0) { 439 maxSmatch = 2; 440 } 441 else if (timeOnly && !isGregorian && hasZoneDisplayName && maxSmatch == 1) { 442 int32_t startRaw, startDst; 443 fmt->getTimeZone().getOffset(d[1], FALSE, startRaw, startDst, status); 444 failure(status, "TimeZone::getOffset"); 445 // If the calendar type is not Gregorian and the pattern is time only, 446 // the calendar implementation may use a date before 1970 as day 0. 447 // In this case, time zone offset of the default year might be 448 // different from the one at 1970-01-01 in PST and string match requires 449 // one more iteration. 450 if (startRaw + startDst != -28800000) { 451 maxSmatch = 2; 452 } 453 } 454 } 455 456 /* 457 * Special case for Japanese and Buddhist (could have large negative years) 458 * Also, Hebrew calendar need help handling leap month. 459 */ 460 if(dmatch > maxDmatch || smatch > maxSmatch) { 461 const char *type = fmt->getCalendar()->getType(); 462 if(!strcmp(type,"japanese") || (!strcmp(type,"buddhist"))) { 463 maxSmatch = 4; 464 maxDmatch = 4; 465 } else if(!strcmp(type,"hebrew")) { 466 maxSmatch = 3; 467 maxDmatch = 3; 468 } 469 } 470 471 // Use @v to see verbose results on successful cases 472 UBool fail = (dmatch > maxDmatch || smatch > maxSmatch); 473 if (optionv || fail) { 474 if (fail) { 475 errln(UnicodeString("\nFAIL: Pattern: ") + pat + 476 " in Locale: " + origLocale.getName()); 477 } else { 478 errln(UnicodeString("\nOk: Pattern: ") + pat + 479 " in Locale: " + origLocale.getName()); 480 } 481 482 logln("Date iters until match=%d (max allowed=%d), string iters until match=%d (max allowed=%d)", 483 dmatch,maxDmatch, smatch, maxSmatch); 484 485 for(int j = 0; j <= loop && j < DEPTH; ++j) { 486 UnicodeString temp; 487 FieldPosition pos(FieldPosition::DONT_CARE); 488 errln((j>0?" P> ":" ") + fullFormat(d[j]) + " F> " + 489 escape(s[j], temp) + UnicodeString(" d=") + d[j] + 490 (j > 0 && d[j]/*.getTime()*/==d[j-1]/*.getTime()*/?" d==":"") + 491 (j > 0 && s[j] == s[j-1]?" s==":"")); 492 } 493 } 494 delete[] d; 495 delete[] s; 496 } 497 /*} 498 catch (ParseException e) { 499 errln("Exception: " + e.getMessage()); 500 logln(e.toString()); 501 }*/ 502 } 503 504 const UnicodeString& DateFormatRoundTripTest::fullFormat(UDate d) { 505 UErrorCode ec = U_ZERO_ERROR; 506 if (dateFormat == 0) { 507 dateFormat = new SimpleDateFormat((UnicodeString)"EEE MMM dd HH:mm:ss.SSS zzz yyyy G", ec); 508 if (U_FAILURE(ec) || dateFormat == 0) { 509 fgStr = "[FAIL: SimpleDateFormat constructor]"; 510 delete dateFormat; 511 dateFormat = 0; 512 return fgStr; 513 } 514 } 515 fgStr.truncate(0); 516 dateFormat->format(d, fgStr); 517 return fgStr; 518 } 519 520 /** 521 * Return a field of the given date 522 */ 523 int32_t DateFormatRoundTripTest::getField(UDate d, int32_t f) { 524 // Should be synchronized, but we're single threaded so it's ok 525 UErrorCode status = U_ZERO_ERROR; 526 getFieldCal->setTime(d, status); 527 failure(status, "getfieldCal->setTime"); 528 int32_t ret = getFieldCal->get((UCalendarDateFields)f, status); 529 failure(status, "getfieldCal->get"); 530 return ret; 531 } 532 533 UnicodeString& DateFormatRoundTripTest::escape(const UnicodeString& src, UnicodeString& dst ) 534 { 535 dst.remove(); 536 for (int32_t i = 0; i < src.length(); ++i) { 537 UChar32 c = src.char32At(i); 538 if (c >= 0x10000) { 539 ++i; 540 } 541 if (c < 0x0080) { 542 dst += c; 543 } else { 544 dst += UnicodeString("["); 545 char buf [12]; 546 sprintf(buf, "%#04x", c); 547 dst += UnicodeString(buf); 548 dst += UnicodeString("]"); 549 } 550 } 551 552 return dst; 553 } 554 555 #define U_MILLIS_PER_YEAR (365.25 * 24 * 60 * 60 * 1000) 556 557 UDate DateFormatRoundTripTest::generateDate(UDate minDate) 558 { 559 // Bring range in conformance to generateDate() below. 560 if(minDate < (U_MILLIS_PER_YEAR * -(4000-1970))) { 561 minDate = (U_MILLIS_PER_YEAR * -(4000-1970)); 562 } 563 for(int i=0;i<8;i++) { 564 double a = randFraction(); 565 566 // Range from (min) to (8000-1970) AD 567 double dateRange = (0.0 - minDate) + (U_MILLIS_PER_YEAR + (8000-1970)); 568 569 a *= dateRange; 570 571 // Now offset from minDate 572 a += minDate; 573 574 // Last sanity check 575 if(a>=minDate) { 576 return a; 577 } 578 } 579 return minDate; 580 } 581 582 UDate DateFormatRoundTripTest::generateDate() 583 { 584 double a = randFraction(); 585 586 // Now 'a' ranges from 0..1; scale it to range from 0 to 8000 years 587 a *= 8000; 588 589 // Range from (4000-1970) BC to (8000-1970) AD 590 a -= 4000; 591 592 // Now scale up to ms 593 a *= 365.25 * 24 * 60 * 60 * 1000; 594 595 //return new Date((long)a); 596 return a; 597 } 598 599 #endif /* #if !UCONFIG_NO_FORMATTING */ 600 601 //eof 602
