icuSources/test/intltest/callimts.cpp

   1 /***********************************************************************
   2  * COPYRIGHT:
   3  * Copyright (c) 1997-2011, International Business Machines Corporation
   4  * and others. All Rights Reserved.
   5  ***********************************************************************/
   6
   7 #include "unicode/utypes.h"
   8
   9 #if !UCONFIG_NO_FORMATTING
  10
  11 #include "callimts.h"
  12 #include "caltest.h"
  13 #include "unicode/calendar.h"
  14 #include "unicode/gregocal.h"
  15 #include "unicode/datefmt.h"
  16 #include "unicode/smpdtfmt.h"
  17 #include "putilimp.h"
  18 #include "cstring.h"
  19
  20 U_NAMESPACE_USE
  21 void CalendarLimitTest::runIndexedTest( int32_t index, UBool exec, const char* &name, char* /*par*/ )
  22 {
  23     if (exec) logln("TestSuite TestCalendarLimit");
  24     switch (index) {
  25         // Re-enable this later
  26         case 0:
  27             name = "TestCalendarExtremeLimit";
  28             if (exec) {
  29                 logln("TestCalendarExtremeLimit---"); logln("");
  30                 TestCalendarExtremeLimit();
  31             }
  32             break;
  33         case 1:
  34             name = "TestLimits";
  35             if (exec) {
  36                 logln("TestLimits---"); logln("");
  37                 TestLimits();
  38             }
  39             break;
  40
  41         default: name = ""; break;
  42     }
  43 }
  44
  45
  46 // *****************************************************************************
  47 // class CalendarLimitTest
  48 // *****************************************************************************
  49
  50 // -------------------------------------
  51 void
  52 CalendarLimitTest::test(UDate millis, icu::Calendar* cal, icu::DateFormat* fmt)
  53 {
  54   static const UDate kDrift = 1e-10;
  55     UErrorCode exception = U_ZERO_ERROR;
  56     UnicodeString theDate;
  57     UErrorCode status = U_ZERO_ERROR;
  58     cal->setTime(millis, exception);
  59     if (U_SUCCESS(exception)) {
  60         fmt->format(millis, theDate);
  61         UDate dt = fmt->parse(theDate, status);
  62         // allow a small amount of error (drift)
  63         if(! withinErr(dt, millis, kDrift)) {
  64           errln("FAIL:round trip for large milli, got: %.1lf wanted: %.1lf. (delta %.2lf greater than %.2lf)",
  65                 dt, millis, uprv_fabs(millis-dt), uprv_fabs(dt*kDrift));
  66           logln(UnicodeString("   ") + theDate + " " + CalendarTest::calToStr(*cal));
  67           } else {
  68             logln(UnicodeString("OK: got ") + dt + ", wanted " + millis);
  69             logln(UnicodeString("    ") + theDate);
  70         }
  71     }
  72 }
  73
  74 // -------------------------------------
  75
  76 // bug 986c: deprecate nextDouble/previousDouble
  77 //|double
  78 //|CalendarLimitTest::nextDouble(double a)
  79 //|{
  80 //|    return uprv_nextDouble(a, TRUE);
  81 //|}
  82 //|
  83 //|double
  84 //|CalendarLimitTest::previousDouble(double a)
  85 //|{
  86 //|    return uprv_nextDouble(a, FALSE);
  87 //|}
  88
  89 UBool
  90 CalendarLimitTest::withinErr(double a, double b, double err)
  91 {
  92     return ( uprv_fabs(a - b) < uprv_fabs(a * err) );
  93 }
  94
  95 void
  96 CalendarLimitTest::TestCalendarExtremeLimit()
  97 {
  98     UErrorCode status = U_ZERO_ERROR;
  99     Calendar *cal = Calendar::createInstance(status);
 100     if (failure(status, "Calendar::createInstance", TRUE)) return;
 101     cal->adoptTimeZone(TimeZone::createTimeZone("GMT"));
 102     DateFormat *fmt = DateFormat::createDateTimeInstance();
 103     if(!fmt || !cal) {
 104        dataerrln("can't open cal and/or fmt");
 105        return;
 106     }
 107     fmt->adoptCalendar(cal);
 108     ((SimpleDateFormat*) fmt)->applyPattern("HH:mm:ss.SSS Z, EEEE, MMMM d, yyyy G");
 109
 110
 111     // This test used to test the algorithmic limits of the dates that
 112     // GregorianCalendar could handle.  However, the algorithm has
 113     // been rewritten completely since then and the prior limits no
 114     // longer apply.  Instead, we now do basic round-trip testing of
 115     // some extreme (but still manageable) dates.
 116     UDate m;
 117     logln("checking 1e16..1e17");
 118     for ( m = 1e16; m < 1e17; m *= 1.1) {
 119         test(m, cal, fmt);
 120     }
 121     logln("checking -1e14..-1e15");
 122     for ( m = -1e14; m > -1e15; m *= 1.1) {
 123         test(m, cal, fmt);
 124     }
 125
 126     // This is 2^52 - 1, the largest allowable mantissa with a 0
 127     // exponent in a 64-bit double
 128     UDate VERY_EARLY_MILLIS = - 4503599627370495.0;
 129     UDate VERY_LATE_MILLIS  =   4503599627370495.0;
 130
 131     // I am removing the previousDouble and nextDouble calls below for
 132     // two reasons: 1. As part of jitterbug 986, I am deprecating
 133     // these methods and removing calls to them.  2. This test is a
 134     // non-critical boundary behavior test.
 135     test(VERY_EARLY_MILLIS, cal, fmt);
 136     //test(previousDouble(VERY_EARLY_MILLIS), cal, fmt);
 137     test(VERY_LATE_MILLIS, cal, fmt);
 138     //test(nextDouble(VERY_LATE_MILLIS), cal, fmt);
 139     delete fmt;
 140 }
 141
 142 void
 143 CalendarLimitTest::TestLimits(void) {
 144     static const UDate DEFAULT_START = 944006400000.0; // 1999-12-01T00:00Z
 145     static const int32_t DEFAULT_END = -120; // Default for non-quick is run 2 minutes
 146
 147     static const struct {
 148         const char *type;
 149         UBool hasLeapMonth;
 150         UDate actualTestStart;
 151         int32_t actualTestEnd;
 152     } TestCases[] = {
 153         {"gregorian",       FALSE,      DEFAULT_START, DEFAULT_END},
 154         {"japanese",        FALSE,      596937600000.0, DEFAULT_END}, // 1988-12-01T00:00Z, Showa 63
 155         {"buddhist",        FALSE,      DEFAULT_START, DEFAULT_END},
 156         {"roc",             FALSE,      DEFAULT_START, DEFAULT_END},
 157         {"persian",         FALSE,      DEFAULT_START, DEFAULT_END},
 158         {"islamic-civil",   FALSE,      DEFAULT_START, DEFAULT_END},
 159         {"islamic",         FALSE,      DEFAULT_START, 800000}, // Approx. 2250 years from now, after which some rounding errors occur in Islamic calendar
 160         {"hebrew",          TRUE,       DEFAULT_START, DEFAULT_END},
 161         {"chinese",         TRUE,       DEFAULT_START, DEFAULT_END},
 162         {"indian",          FALSE,      DEFAULT_START, DEFAULT_END},
 163         {"coptic",          FALSE,      DEFAULT_START, DEFAULT_END},
 164         {"ethiopic",        FALSE,      DEFAULT_START, DEFAULT_END},
 165         {"ethiopic-amete-alem", FALSE,  DEFAULT_START, DEFAULT_END},
 166         {NULL,              FALSE,      0, 0}
 167     };
 168
 169     int16_t i = 0;
 170     char buf[64];
 171
 172     for (i = 0; TestCases[i].type; i++) {
 173         UErrorCode status = U_ZERO_ERROR;
 174         uprv_strcpy(buf, "root@calendar=");
 175         strcat(buf, TestCases[i].type);
 176         Calendar *cal = Calendar::createInstance(buf, status);
 177         if (failure(status, "Calendar::createInstance", TRUE)) {
 178             continue;
 179         }
 180         if (uprv_strcmp(cal->getType(), TestCases[i].type) != 0) {
 181             errln((UnicodeString)"FAIL: Wrong calendar type: " + cal->getType()
 182                 + " Requested: " + TestCases[i].type);
 183             delete cal;
 184             continue;
 185         }
 186         // Do the test
 187         doTheoreticalLimitsTest(*cal, TestCases[i].hasLeapMonth);
 188         doLimitsTest(*cal, TestCases[i].actualTestStart,TestCases[i].actualTestEnd);
 189         delete cal;
 190     }
 191 }
 192
 193 void
 194 CalendarLimitTest::doTheoreticalLimitsTest(Calendar& cal, UBool leapMonth) {
 195     const char* calType = cal.getType();
 196
 197     int32_t nDOW = cal.getMaximum(UCAL_DAY_OF_WEEK);
 198     int32_t maxDOY = cal.getMaximum(UCAL_DAY_OF_YEAR);
 199     int32_t lmaxDOW = cal.getLeastMaximum(UCAL_DAY_OF_YEAR);
 200     int32_t maxWOY = cal.getMaximum(UCAL_WEEK_OF_YEAR);
 201     int32_t lmaxWOY = cal.getLeastMaximum(UCAL_WEEK_OF_YEAR);
 202     int32_t maxM = cal.getMaximum(UCAL_MONTH) + 1;
 203     int32_t lmaxM = cal.getLeastMaximum(UCAL_MONTH) + 1;
 204     int32_t maxDOM = cal.getMaximum(UCAL_DAY_OF_MONTH);
 205     int32_t lmaxDOM = cal.getLeastMaximum(UCAL_DAY_OF_MONTH);
 206     int32_t maxDOWIM = cal.getMaximum(UCAL_DAY_OF_WEEK_IN_MONTH);
 207     int32_t lmaxDOWIM = cal.getLeastMaximum(UCAL_DAY_OF_WEEK_IN_MONTH);
 208     int32_t maxWOM = cal.getMaximum(UCAL_WEEK_OF_MONTH);
 209     int32_t lmaxWOM = cal.getLeastMaximum(UCAL_WEEK_OF_MONTH);
 210     int32_t minDaysInFirstWeek = cal.getMinimalDaysInFirstWeek();
 211
 212     // Day of year
 213     int32_t expected;
 214     if (!leapMonth) {
 215         expected = maxM*maxDOM;
 216         if (maxDOY > expected) {
 217             errln((UnicodeString)"FAIL: [" + calType + "] Maximum value of DAY_OF_YEAR is too big: "
 218                 + maxDOY + "/expected: <=" + expected);
 219         }
 220         expected = lmaxM*lmaxDOM;
 221         if (lmaxDOW < expected) {
 222             errln((UnicodeString)"FAIL: [" + calType + "] Least maximum value of DAY_OF_YEAR is too small: "
 223                 + lmaxDOW + "/expected: >=" + expected);
 224         }
 225     }
 226
 227     // Week of year
 228     expected = maxDOY/nDOW + 1;
 229     if (maxWOY > expected) {
 230         errln((UnicodeString)"FAIL: [" + calType + "] Maximum value of WEEK_OF_YEAR is too big: "
 231             + maxWOY + "/expected: <=" + expected);
 232     }
 233     expected = lmaxDOW/nDOW;
 234     if (lmaxWOY < expected) {
 235         errln((UnicodeString)"FAIL: [" + calType + "] Least maximum value of WEEK_OF_YEAR is too small: "
 236             + lmaxWOY + "/expected >=" + expected);
 237     }
 238
 239     // Day of week in month
 240     expected = (maxDOM + nDOW - 1)/nDOW;
 241     if (maxDOWIM != expected) {
 242         errln((UnicodeString)"FAIL: [" + calType + "] Maximum value of DAY_OF_WEEK_IN_MONTH is incorrect: "
 243             + maxDOWIM + "/expected: " + expected);
 244     }
 245     expected = (lmaxDOM + nDOW - 1)/nDOW;
 246     if (lmaxDOWIM != expected) {
 247         errln((UnicodeString)"FAIL: [" + calType + "] Least maximum value of DAY_OF_WEEK_IN_MONTH is incorrect: "
 248             + lmaxDOWIM + "/expected: " + expected);
 249     }
 250
 251     // Week of month
 252     expected = (maxDOM + (nDOW - 1) + (nDOW - minDaysInFirstWeek)) / nDOW;
 253     if (maxWOM != expected) {
 254         errln((UnicodeString)"FAIL: [" + calType + "] Maximum value of WEEK_OF_MONTH is incorrect: "
 255             + maxWOM + "/expected: " + expected);
 256     }
 257     expected = (lmaxDOM + (nDOW - minDaysInFirstWeek)) / nDOW;
 258     if (lmaxWOM != expected) {
 259         errln((UnicodeString)"FAIL: [" + calType + "] Least maximum value of WEEK_OF_MONTH is incorrect: "
 260             + lmaxWOM + "/expected: " + expected);
 261     }
 262 }
 263
 264 void
 265 CalendarLimitTest::doLimitsTest(Calendar& cal, UDate startDate, int32_t endTime) {
 266     int32_t testTime = quick ? ( endTime / 40 ) : endTime;
 267     doLimitsTest(cal, NULL /*default fields*/, startDate, testTime);
 268 }
 269
 270 void
 271 CalendarLimitTest::doLimitsTest(Calendar& cal,
 272                                 const int32_t* fieldsToTest,
 273                                 UDate startDate,
 274                                 int32_t testDuration) {
 275     static const int32_t FIELDS[] = {
 276         UCAL_ERA,
 277         UCAL_YEAR,
 278         UCAL_MONTH,
 279         UCAL_WEEK_OF_YEAR,
 280         UCAL_WEEK_OF_MONTH,
 281         UCAL_DAY_OF_MONTH,
 282         UCAL_DAY_OF_YEAR,
 283         UCAL_DAY_OF_WEEK_IN_MONTH,
 284         UCAL_YEAR_WOY,
 285         UCAL_EXTENDED_YEAR,
 286         -1,
 287     };
 288
 289     static const char* FIELD_NAME[] = {
 290         "ERA", "YEAR", "MONTH", "WEEK_OF_YEAR", "WEEK_OF_MONTH",
 291         "DAY_OF_MONTH", "DAY_OF_YEAR", "DAY_OF_WEEK",
 292         "DAY_OF_WEEK_IN_MONTH", "AM_PM", "HOUR", "HOUR_OF_DAY",
 293         "MINUTE", "SECOND", "MILLISECOND", "ZONE_OFFSET",
 294         "DST_OFFSET", "YEAR_WOY", "DOW_LOCAL", "EXTENDED_YEAR",
 295         "JULIAN_DAY", "MILLISECONDS_IN_DAY",
 296         "IS_LEAP_MONTH"
 297     };
 298
 299     UErrorCode status = U_ZERO_ERROR;
 300     int32_t i, j;
 301     UnicodeString ymd;
 302
 303     GregorianCalendar greg(status);
 304     if (failure(status, "new GregorianCalendar")) {
 305         return;
 306     }
 307     greg.setTime(startDate, status);
 308     if (failure(status, "GregorianCalendar::setTime")) {
 309         return;
 310     }
 311     logln((UnicodeString)"Start: " + startDate);
 312
 313     if (fieldsToTest == NULL) {
 314         fieldsToTest = FIELDS;
 315     }
 316
 317
 318     // Keep a record of minima and maxima that we actually see.
 319     // These are kept in an array of arrays of hashes.
 320     int32_t limits[UCAL_FIELD_COUNT][4];
 321     for (j = 0; j < UCAL_FIELD_COUNT; j++) {
 322         limits[j][0] = INT32_MAX;
 323         limits[j][1] = INT32_MIN;
 324         limits[j][2] = INT32_MAX;
 325         limits[j][3] = INT32_MIN;
 326     }
 327
 328     // This test can run for a long time; show progress.
 329     UDate millis = ucal_getNow();
 330     UDate mark = millis + 5000; // 5 sec
 331     millis -= testDuration * 1000; // stop time if testDuration<0
 332
 333     for (i = 0;
 334          testDuration > 0 ? i < testDuration
 335                         : ucal_getNow() < millis;
 336          ++i) {
 337         if (ucal_getNow() >= mark) {
 338             logln((UnicodeString)"(" + i + " days)");
 339             mark += 5000; // 5 sec
 340         }
 341         cal.setTime(greg.getTime(status), status);
 342         cal.setMinimalDaysInFirstWeek(1);
 343         if (failure(status, "Calendar set/getTime")) {
 344             return;
 345         }
 346         for (j = 0; fieldsToTest[j] >= 0; ++j) {
 347             UCalendarDateFields f = (UCalendarDateFields)fieldsToTest[j];
 348             int32_t v = cal.get(f, status);
 349             int32_t minActual = cal.getActualMinimum(f, status);
 350             int32_t maxActual = cal.getActualMaximum(f, status);
 351             int32_t minLow = cal.getMinimum(f);
 352             int32_t minHigh = cal.getGreatestMinimum(f);
 353             int32_t maxLow = cal.getLeastMaximum(f);
 354             int32_t maxHigh = cal.getMaximum(f);
 355
 356             if (limits[j][0] > minActual) {
 357                 // the minimum
 358                 limits[j][0] = minActual;
 359             }
 360             if (limits[j][1] < minActual) {
 361                 // the greatest minimum
 362                 limits[j][1] = minActual;
 363             }
 364             if (limits[j][2] > maxActual) {
 365                 // the least maximum
 366                 limits[j][2] = maxActual;
 367             }
 368             if (limits[j][3] < maxActual) {
 369                 // the maximum
 370                 limits[j][3] = maxActual;
 371             }
 372
 373             if (minActual < minLow || minActual > minHigh) {
 374                 errln((UnicodeString)"Fail: [" + cal.getType() + "] " +
 375                       ymdToString(cal, ymd) +
 376                       " Range for min of " + FIELD_NAME[f] + "(" + f +
 377                       ")=" + minLow + ".." + minHigh +
 378                       ", actual_min=" + minActual);
 379             }
 380             if (maxActual < maxLow || maxActual > maxHigh) {
 381                 errln((UnicodeString)"Fail: [" + cal.getType() + "] " +
 382                       ymdToString(cal, ymd) +
 383                       " Range for max of " + FIELD_NAME[f] + "(" + f +
 384                       ")=" + maxLow + ".." + maxHigh +
 385                       ", actual_max=" + maxActual);
 386             }
 387             if (v < minActual || v > maxActual) {
 388                 errln((UnicodeString)"Fail: [" + cal.getType() + "] " +
 389                       ymdToString(cal, ymd) +
 390                       " " + FIELD_NAME[f] + "(" + f + ")=" + v +
 391                       ", actual range=" + minActual + ".." + maxActual +
 392                       ", allowed=(" + minLow + ".." + minHigh + ")..(" +
 393                       maxLow + ".." + maxHigh + ")");
 394             }
 395         }
 396         greg.add(UCAL_DAY_OF_YEAR, 1, status);
 397         if (failure(status, "Calendar::add")) {
 398             return;
 399         }
 400     }
 401
 402     // Check actual maxima and minima seen against ranges returned
 403     // by API.
 404     UnicodeString buf;
 405     for (j = 0; fieldsToTest[j] >= 0; ++j) {
 406         int32_t rangeLow, rangeHigh;
 407         UBool fullRangeSeen = TRUE;
 408         UCalendarDateFields f = (UCalendarDateFields)fieldsToTest[j];
 409
 410         buf.remove();
 411         buf.append((UnicodeString)"[" + cal.getType() + "] " + FIELD_NAME[f]);
 412
 413         // Minumum
 414         rangeLow = cal.getMinimum(f);
 415         rangeHigh = cal.getGreatestMinimum(f);
 416         if (limits[j][0] != rangeLow || limits[j][1] != rangeHigh) {
 417             fullRangeSeen = FALSE;
 418         }
 419         buf.append((UnicodeString)" minima range=" + rangeLow + ".." + rangeHigh);
 420         buf.append((UnicodeString)" minima actual=" + limits[j][0] + ".." + limits[j][1]);
 421
 422         // Maximum
 423         rangeLow = cal.getLeastMaximum(f);
 424         rangeHigh = cal.getMaximum(f);
 425         if (limits[j][2] != rangeLow || limits[j][3] != rangeHigh) {
 426             fullRangeSeen = FALSE;
 427         }
 428         buf.append((UnicodeString)" maxima range=" + rangeLow + ".." + rangeHigh);
 429         buf.append((UnicodeString)" maxima actual=" + limits[j][2] + ".." + limits[j][3]);
 430
 431         if (fullRangeSeen) {
 432             logln((UnicodeString)"OK: " + buf);
 433         } else {
 434             // This may or may not be an error -- if the range of dates
 435             // we scan over doesn't happen to contain a minimum or
 436             // maximum, it doesn't mean some other range won't.
 437             logln((UnicodeString)"Warning: " + buf);
 438         }
 439     }
 440
 441     logln((UnicodeString)"End: " + greg.getTime(status));
 442 }
 443
 444 UnicodeString&
 445 CalendarLimitTest::ymdToString(const Calendar& cal, UnicodeString& str) {
 446     UErrorCode status = U_ZERO_ERROR;
 447     str.remove();
 448     str.append((UnicodeString)"" + cal.get(UCAL_EXTENDED_YEAR, status)
 449         + "/" + (cal.get(UCAL_MONTH, status) + 1)
 450         + (cal.get(UCAL_IS_LEAP_MONTH, status) == 1 ? "(leap)" : "")
 451         + "/" + cal.get(UCAL_DATE, status)
 452         + ", time=" + cal.getTime(status));
 453     return str;
 454 }
 455
 456 #endif /* #if !UCONFIG_NO_FORMATTING */
 457
 458 // eof