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      1 /*
      2  ****************************************************************************
      3  * Copyright (c) 1997-2007, International Business Machines Corporation and *
      4  * others. All Rights Reserved.                                             *
      5  ****************************************************************************
      6  */
      7 
      8 #include "unicode/utypes.h"
      9 
     10 #if !UCONFIG_NO_FORMATTING
     11 
     12 #include "unicode/utmscale.h"
     13 #include "unicode/ucal.h"
     14 
     15 #include "cintltst.h"
     16 
     17 #include <stdlib.h>
     18 #include <time.h>
     19 
     20 #define LENGTHOF(array) (int32_t)(sizeof(array)/sizeof((array)[0]))
     21 
     22 #define LOOP_COUNT 10000
     23 
     24 static void TestAPI(void);
     25 static void TestData(void);
     26 static void TestMonkey(void);
     27 static void TestDotNet(void);
     28 
     29 void addUtmsTest(TestNode** root);
     30 
     31 void addUtmsTest(TestNode** root)
     32 {
     33     addTest(root, &TestAPI, "tsformat/utmstest/TestAPI");
     34     addTest(root, &TestData, "tsformat/utmstest/TestData");
     35     addTest(root, &TestMonkey, "tsformat/utmstest/TestMonkey");
     36     addTest(root, &TestDotNet, "tsformat/utmstest/TestDotNet");
     37 }
     38 
     39 /**
     40  * Return a random int64_t where U_INT64_MIN <= ran <= U_INT64_MAX.
     41  */
     42 static uint64_t randomInt64(void)
     43 {
     44     int64_t ran = 0;
     45     int32_t i;
     46     static UBool initialized = FALSE;
     47 
     48     if (!initialized) {
     49         srand((unsigned)time(NULL));
     50         initialized = TRUE;
     51     }
     52 
     53     /* Assume rand has at least 12 bits of precision */
     54     for (i = 0; i < sizeof(ran); i += 1) {
     55         ((char*)&ran)[i] = (char)((rand() & 0x0FF0) >> 4);
     56     }
     57 
     58     return ran;
     59 }
     60 
     61 static int64_t ranInt;
     62 static int64_t ranMin;
     63 static int64_t ranMax;
     64 
     65 static void initRandom(int64_t min, int64_t max)
     66 {
     67     uint64_t interval = max - min;
     68 
     69     ranMin = min;
     70     ranMax = max;
     71     ranInt = 0;
     72 
     73     /* Verify that we don't have a huge interval. */
     74     if (interval < (uint64_t)U_INT64_MAX) {
     75         ranInt = interval;
     76     }
     77 }
     78 
     79 static int64_t randomInRange(void)
     80 {
     81     int64_t value;
     82 
     83     if (ranInt != 0) {
     84         value = randomInt64() % ranInt;
     85 
     86         if (value < 0) {
     87             value = -value;
     88         }
     89 
     90         value += ranMin;
     91     } else {
     92         do {
     93             value = randomInt64();
     94         } while (value < ranMin || value > ranMax);
     95     }
     96 
     97     return value;
     98 }
     99 
    100 static void roundTripTest(int64_t value, UDateTimeScale scale)
    101 {
    102     UErrorCode status = U_ZERO_ERROR;
    103     int64_t rt = utmscale_toInt64(utmscale_fromInt64(value, scale, &status), scale, &status);
    104 
    105     if (rt != value) {
    106         log_err("Round-trip error: time scale = %d, value = %lld, round-trip = %lld.\n", scale, value, rt);
    107     }
    108 }
    109 
    110 static void toLimitTest(int64_t toLimit, int64_t fromLimit, UDateTimeScale scale)
    111 {
    112     UErrorCode status = U_ZERO_ERROR;
    113     int64_t result = utmscale_toInt64(toLimit, scale, &status);
    114 
    115     if (result != fromLimit) {
    116         log_err("toLimit failure: scale = %d, toLimit = %lld , utmscale_toInt64(toLimit, scale, &status) = %lld, fromLimit = %lld.\n",
    117             scale, toLimit, result, fromLimit);
    118     }
    119 }
    120 
    121 static void epochOffsetTest(int64_t epochOffset, int64_t units, UDateTimeScale scale)
    122 {
    123     UErrorCode status = U_ZERO_ERROR;
    124     int64_t universal = 0;
    125     int64_t universalEpoch = epochOffset * units;
    126     int64_t local = utmscale_toInt64(universalEpoch, scale, &status);
    127 
    128     if (local != 0) {
    129         log_err("utmscale_toInt64(epochOffset, scale, &status): scale = %d epochOffset = %lld, result = %lld.\n", scale, epochOffset, local);
    130     }
    131 
    132     local = utmscale_toInt64(0, scale, &status);
    133 
    134     if (local != -epochOffset) {
    135         log_err("utmscale_toInt64(0, scale): scale = %d, result = %lld.\n", scale, local);
    136     }
    137 
    138     universal = utmscale_fromInt64(-epochOffset, scale, &status);
    139 
    140     if (universal != 0) {
    141         log_err("from(-epochOffest, scale): scale = %d, epochOffset = %lld, result = %lld.\n", scale, epochOffset, universal);
    142     }
    143 
    144     universal = utmscale_fromInt64(0, scale, &status);
    145 
    146     if (universal != universalEpoch) {
    147         log_err("utmscale_fromInt64(0, scale): scale = %d, result = %lld.\n", scale, universal);
    148     }
    149 }
    150 
    151 static void TestEpochOffsets(void)
    152 {
    153     UErrorCode status = U_ZERO_ERROR;
    154     int32_t scale;
    155 
    156     for (scale = 0; scale < UDTS_MAX_SCALE; scale += 1) {
    157         int64_t units       = utmscale_getTimeScaleValue((UDateTimeScale)scale, UTSV_UNITS_VALUE, &status);
    158         int64_t epochOffset = utmscale_getTimeScaleValue((UDateTimeScale)scale, UTSV_EPOCH_OFFSET_VALUE, &status);
    159 
    160         epochOffsetTest(epochOffset, units, (UDateTimeScale)scale);
    161     }
    162 }
    163 
    164 static void TestFromLimits(void)
    165 {
    166     UErrorCode status = U_ZERO_ERROR;
    167     int32_t scale;
    168 
    169     for (scale = 0; scale < UDTS_MAX_SCALE; scale += 1) {
    170         int64_t fromMin = utmscale_getTimeScaleValue((UDateTimeScale)scale, UTSV_FROM_MIN_VALUE, &status);
    171         int64_t fromMax = utmscale_getTimeScaleValue((UDateTimeScale)scale, UTSV_FROM_MAX_VALUE, &status);
    172 
    173         roundTripTest(fromMin, (UDateTimeScale)scale);
    174         roundTripTest(fromMax, (UDateTimeScale)scale);
    175     }
    176 }
    177 
    178 static void TestToLimits(void)
    179 {
    180     UErrorCode status = U_ZERO_ERROR;
    181     int32_t scale;
    182 
    183     for (scale = 0; scale < UDTS_MAX_SCALE; scale += 1) {
    184         int64_t fromMin = utmscale_getTimeScaleValue((UDateTimeScale)scale, UTSV_FROM_MIN_VALUE, &status);
    185         int64_t fromMax = utmscale_getTimeScaleValue((UDateTimeScale)scale, UTSV_FROM_MAX_VALUE, &status);
    186         int64_t toMin   = utmscale_getTimeScaleValue((UDateTimeScale)scale, UTSV_TO_MIN_VALUE, &status);
    187         int64_t toMax   = utmscale_getTimeScaleValue((UDateTimeScale)scale, UTSV_TO_MAX_VALUE, &status);
    188 
    189         toLimitTest(toMin, fromMin, (UDateTimeScale)scale);
    190         toLimitTest(toMax, fromMax, (UDateTimeScale)scale);
    191     }
    192 }
    193 
    194 static void TestFromInt64(void)
    195 {
    196     int32_t scale;
    197     int64_t result;
    198     UErrorCode status = U_ZERO_ERROR;
    199 
    200     result = utmscale_fromInt64(0, -1, &status);
    201     if (status != U_ILLEGAL_ARGUMENT_ERROR) {
    202         log_err("utmscale_fromInt64(0, -1, status) did not set status to U_ILLEGAL_ARGUMENT_ERROR.\n");
    203     }
    204 
    205     for (scale = 0; scale < UDTS_MAX_SCALE; scale += 1) {
    206         int64_t fromMin, fromMax;
    207 
    208         status = U_ZERO_ERROR;
    209         fromMin = utmscale_getTimeScaleValue((UDateTimeScale)scale, UTSV_FROM_MIN_VALUE, &status);
    210         fromMax = utmscale_getTimeScaleValue((UDateTimeScale)scale, UTSV_FROM_MAX_VALUE, &status);
    211 
    212         status = U_ZERO_ERROR;
    213         result = utmscale_fromInt64(0, (UDateTimeScale)scale, &status);
    214         if (status == U_ILLEGAL_ARGUMENT_ERROR) {
    215             log_err("utmscale_fromInt64(0, %d, &status) generated U_ILLEGAL_ARGUMENT_ERROR.\n", scale);
    216         }
    217 
    218         status = U_ZERO_ERROR;
    219         result = utmscale_fromInt64(fromMin, (UDateTimeScale)scale, &status);
    220         if (status == U_ILLEGAL_ARGUMENT_ERROR) {
    221             log_err("utmscale_fromInt64(fromMin, %d, &status) generated U_ILLEGAL_ARGUMENT_ERROR.\n", scale);
    222         }
    223 
    224         if (fromMin > U_INT64_MIN) {
    225             status = U_ZERO_ERROR;
    226             result = utmscale_fromInt64(fromMin - 1, (UDateTimeScale)scale, &status);
    227             if (status != U_ILLEGAL_ARGUMENT_ERROR) {
    228                 log_err("utmscale_fromInt64(fromMin - 1, %d, &status) did not generate U_ILLEGAL_ARGUMENT_ERROR.\n", scale);
    229             }
    230         }
    231 
    232         status = U_ZERO_ERROR;
    233         result = utmscale_fromInt64(fromMax, (UDateTimeScale)scale, &status);
    234         if (status == U_ILLEGAL_ARGUMENT_ERROR) {
    235             log_err("utmscale_fromInt64(fromMax, %d, &status) generated U_ILLEGAL_ARGUMENT_ERROR.\n", scale);
    236         }
    237 
    238         if (fromMax < U_INT64_MAX) {
    239             status = U_ZERO_ERROR;
    240             result = utmscale_fromInt64(fromMax + 1, (UDateTimeScale)scale, &status);
    241             if (status != U_ILLEGAL_ARGUMENT_ERROR) {
    242                 log_err("utmscale_fromInt64(fromMax + 1, %d, &status) didn't generate U_ILLEGAL_ARGUMENT_ERROR.\n", scale);
    243             }
    244         }
    245     }
    246 
    247     status = U_ZERO_ERROR;
    248     result = utmscale_fromInt64(0, UDTS_MAX_SCALE, &status);
    249     if (status != U_ILLEGAL_ARGUMENT_ERROR) {
    250         log_err("utmscale_fromInt64(0, UDTS_MAX_SCALE, &status) did not generate U_ILLEGAL_ARGUMENT_ERROR.\n");
    251     }
    252 }
    253 
    254 static void TestToInt64(void)
    255 {
    256     int32_t scale;
    257     int64_t result;
    258     UErrorCode status = U_ZERO_ERROR;
    259 
    260     result = utmscale_toInt64(0, -1, &status);
    261     if (status != U_ILLEGAL_ARGUMENT_ERROR) {
    262         log_err("utmscale_toInt64(0, -1, &status) did not generate U_ILLEGAL_ARGUMENT_ERROR.\n");
    263     }
    264 
    265     for (scale = 0; scale < UDTS_MAX_SCALE; scale += 1) {
    266         int64_t toMin, toMax;
    267 
    268         status = U_ZERO_ERROR;
    269         toMin = utmscale_getTimeScaleValue((UDateTimeScale)scale, UTSV_TO_MIN_VALUE, &status);
    270         toMax = utmscale_getTimeScaleValue((UDateTimeScale)scale, UTSV_TO_MAX_VALUE, &status);
    271 
    272         status = U_ZERO_ERROR;
    273         result = utmscale_toInt64(0, (UDateTimeScale)scale, &status);
    274         if (status == U_ILLEGAL_ARGUMENT_ERROR) {
    275             log_err("utmscale_toInt64(0, %d, &status) generated U_ILLEGAL_ARGUMENT_ERROR.\n", scale);
    276         }
    277 
    278         status = U_ZERO_ERROR;
    279         result = utmscale_toInt64(toMin, (UDateTimeScale)scale, &status);
    280         if (status == U_ILLEGAL_ARGUMENT_ERROR) {
    281             log_err("utmscale_toInt64(toMin, %d, &status) generated U_ILLEGAL_ARGUMENT_ERROR.\n", scale);
    282         }
    283 
    284         if (toMin > U_INT64_MIN) {
    285             status = U_ZERO_ERROR;
    286             result = utmscale_toInt64(toMin - 1, (UDateTimeScale)scale, &status);
    287             if (status != U_ILLEGAL_ARGUMENT_ERROR) {
    288                 log_err("utmscale_toInt64(toMin - 1, %d, &status) did not generate U_ILLEGAL_ARGUMENT_ERROR.\n", scale);
    289             }
    290         }
    291 
    292 
    293         status = U_ZERO_ERROR;
    294         result = utmscale_toInt64(toMax, (UDateTimeScale)scale, &status);
    295         if (status == U_ILLEGAL_ARGUMENT_ERROR) {
    296             log_err("utmscale_toInt64(toMax, %d, &status) generated U_ILLEGAL_ARGUMENT_ERROR.\n", scale);
    297         }
    298 
    299         if (toMax < U_INT64_MAX) {
    300             status = U_ZERO_ERROR;
    301             result = utmscale_toInt64(toMax + 1, (UDateTimeScale)scale, &status);
    302             if (status != U_ILLEGAL_ARGUMENT_ERROR) {
    303                 log_err("utmscale_toInt64(toMax + 1, %d, &status) did not generate U_ILLEGAL_ARGUMENT_ERROR.\n", scale);
    304             }
    305         }
    306     }
    307 
    308     status = U_ZERO_ERROR;
    309     result = utmscale_toInt64(0, UDTS_MAX_SCALE, &status);
    310     if (status != U_ILLEGAL_ARGUMENT_ERROR) {
    311         log_err("utmscale_toInt64(0, UDTS_MAX_SCALE, &status) did not generate U_ILLEGAL_ARGUMENT_ERROR.\n");
    312     }
    313 }
    314 
    315 static void TestAPI(void)
    316 {
    317     TestFromInt64();
    318     TestToInt64();
    319 }
    320 
    321 static void TestData(void)
    322 {
    323     TestEpochOffsets();
    324     TestFromLimits();
    325     TestToLimits();
    326 }
    327 
    328 static void TestMonkey(void)
    329 {
    330     int32_t scale;
    331     UErrorCode status = U_ZERO_ERROR;
    332 
    333     for (scale = 0; scale < UDTS_MAX_SCALE; scale += 1) {
    334         int64_t fromMin = utmscale_getTimeScaleValue((UDateTimeScale)scale, UTSV_FROM_MIN_VALUE, &status);
    335         int64_t fromMax = utmscale_getTimeScaleValue((UDateTimeScale)scale, UTSV_FROM_MAX_VALUE, &status);
    336         int32_t i;
    337 
    338         initRandom(fromMin, fromMax);
    339 
    340         for (i = 0; i < LOOP_COUNT; i += 1) {
    341             int64_t value = randomInRange();
    342 
    343             roundTripTest(value, (UDateTimeScale)scale);
    344         }
    345     }
    346 }
    347 
    348 struct DotNetDateTimeTicks {
    349     int32_t year;
    350     int32_t month;
    351     int32_t day;
    352     int64_t ticks;
    353 };
    354 typedef struct DotNetDateTimeTicks DotNetDateTimeTicks;
    355 
    356 /*
    357  * This data was generated by C++.Net code like
    358  * Console::WriteLine(L"    {{ {0}, 1, 1, INT64_C({1}) }},", year, DateTime(year, 1, 1).Ticks);
    359  * with the DateTime constructor taking int values for year, month, and date.
    360  */
    361 static const DotNetDateTimeTicks dotNetDateTimeTicks[]={
    362     /* year, month, day, ticks */
    363     { 100, 1, 1, INT64_C(31241376000000000) },
    364     { 100, 3, 1, INT64_C(31292352000000000) },
    365     { 200, 1, 1, INT64_C(62798112000000000) },
    366     { 200, 3, 1, INT64_C(62849088000000000) },
    367     { 300, 1, 1, INT64_C(94354848000000000) },
    368     { 300, 3, 1, INT64_C(94405824000000000) },
    369     { 400, 1, 1, INT64_C(125911584000000000) },
    370     { 400, 3, 1, INT64_C(125963424000000000) },
    371     { 500, 1, 1, INT64_C(157469184000000000) },
    372     { 500, 3, 1, INT64_C(157520160000000000) },
    373     { 600, 1, 1, INT64_C(189025920000000000) },
    374     { 600, 3, 1, INT64_C(189076896000000000) },
    375     { 700, 1, 1, INT64_C(220582656000000000) },
    376     { 700, 3, 1, INT64_C(220633632000000000) },
    377     { 800, 1, 1, INT64_C(252139392000000000) },
    378     { 800, 3, 1, INT64_C(252191232000000000) },
    379     { 900, 1, 1, INT64_C(283696992000000000) },
    380     { 900, 3, 1, INT64_C(283747968000000000) },
    381     { 1000, 1, 1, INT64_C(315253728000000000) },
    382     { 1000, 3, 1, INT64_C(315304704000000000) },
    383     { 1100, 1, 1, INT64_C(346810464000000000) },
    384     { 1100, 3, 1, INT64_C(346861440000000000) },
    385     { 1200, 1, 1, INT64_C(378367200000000000) },
    386     { 1200, 3, 1, INT64_C(378419040000000000) },
    387     { 1300, 1, 1, INT64_C(409924800000000000) },
    388     { 1300, 3, 1, INT64_C(409975776000000000) },
    389     { 1400, 1, 1, INT64_C(441481536000000000) },
    390     { 1400, 3, 1, INT64_C(441532512000000000) },
    391     { 1500, 1, 1, INT64_C(473038272000000000) },
    392     { 1500, 3, 1, INT64_C(473089248000000000) },
    393     { 1600, 1, 1, INT64_C(504595008000000000) },
    394     { 1600, 3, 1, INT64_C(504646848000000000) },
    395     { 1700, 1, 1, INT64_C(536152608000000000) },
    396     { 1700, 3, 1, INT64_C(536203584000000000) },
    397     { 1800, 1, 1, INT64_C(567709344000000000) },
    398     { 1800, 3, 1, INT64_C(567760320000000000) },
    399     { 1900, 1, 1, INT64_C(599266080000000000) },
    400     { 1900, 3, 1, INT64_C(599317056000000000) },
    401     { 2000, 1, 1, INT64_C(630822816000000000) },
    402     { 2000, 3, 1, INT64_C(630874656000000000) },
    403     { 2100, 1, 1, INT64_C(662380416000000000) },
    404     { 2100, 3, 1, INT64_C(662431392000000000) },
    405     { 2200, 1, 1, INT64_C(693937152000000000) },
    406     { 2200, 3, 1, INT64_C(693988128000000000) },
    407     { 2300, 1, 1, INT64_C(725493888000000000) },
    408     { 2300, 3, 1, INT64_C(725544864000000000) },
    409     { 2400, 1, 1, INT64_C(757050624000000000) },
    410     { 2400, 3, 1, INT64_C(757102464000000000) },
    411     { 2500, 1, 1, INT64_C(788608224000000000) },
    412     { 2500, 3, 1, INT64_C(788659200000000000) },
    413     { 2600, 1, 1, INT64_C(820164960000000000) },
    414     { 2600, 3, 1, INT64_C(820215936000000000) },
    415     { 2700, 1, 1, INT64_C(851721696000000000) },
    416     { 2700, 3, 1, INT64_C(851772672000000000) },
    417     { 2800, 1, 1, INT64_C(883278432000000000) },
    418     { 2800, 3, 1, INT64_C(883330272000000000) },
    419     { 2900, 1, 1, INT64_C(914836032000000000) },
    420     { 2900, 3, 1, INT64_C(914887008000000000) },
    421     { 3000, 1, 1, INT64_C(946392768000000000) },
    422     { 3000, 3, 1, INT64_C(946443744000000000) },
    423     { 1, 1, 1, INT64_C(0) },
    424     { 1601, 1, 1, INT64_C(504911232000000000) },
    425     { 1899, 12, 31, INT64_C(599265216000000000) },
    426     { 1904, 1, 1, INT64_C(600527520000000000) },
    427     { 1970, 1, 1, INT64_C(621355968000000000) },
    428     { 2001, 1, 1, INT64_C(631139040000000000) },
    429     { 9900, 3, 1, INT64_C(3123873216000000000) },
    430     { 9999, 12, 31, INT64_C(3155378112000000000) }
    431 };
    432 
    433 /*
    434  * ICU's Universal Time Scale is designed to be tick-for-tick compatible with
    435  * .Net System.DateTime. Verify that this is so for the
    436  * .Net-supported date range (years 1-9999 AD).
    437  * This requires a proleptic Gregorian calendar because that's what .Net uses.
    438  * Proleptic: No Julian/Gregorian switchover, or a switchover before
    439  * any date that we test, that is, before 0001 AD.
    440  */
    441 static void
    442 TestDotNet() {
    443     static const UChar utc[] = { 0x45, 0x74, 0x63, 0x2f, 0x47, 0x4d, 0x54, 0 }; /* "Etc/GMT" */
    444     const int32_t dayMillis = 86400 * INT64_C(1000);    /* 1 day = 86400 seconds */
    445     const int64_t dayTicks = 86400 * INT64_C(10000000);
    446     const DotNetDateTimeTicks *dt;
    447     UCalendar *cal;
    448     UErrorCode errorCode;
    449     UDate icuDate;
    450     int64_t ticks, millis;
    451     int32_t i;
    452 
    453     /* Open a proleptic Gregorian calendar. */
    454     errorCode = U_ZERO_ERROR;
    455     cal = ucal_open(utc, -1, "", UCAL_GREGORIAN, &errorCode);
    456     ucal_setGregorianChange(cal, -1000000 * (dayMillis * (UDate)1), &errorCode);
    457     if(U_FAILURE(errorCode)) {
    458         log_err("ucal_open(UTC/proleptic Gregorian) failed: %s\n", u_errorName(errorCode));
    459         ucal_close(cal);
    460         return;
    461     }
    462     for(i = 0; i < LENGTHOF(dotNetDateTimeTicks); ++i) {
    463         /* Test conversion from .Net/Universal time to ICU time. */
    464         dt = dotNetDateTimeTicks + i;
    465         millis = utmscale_toInt64(dt->ticks, UDTS_ICU4C_TIME, &errorCode);
    466         ucal_clear(cal);
    467         ucal_setDate(cal, dt->year, dt->month - 1, dt->day, &errorCode); /* Java & ICU use January = month 0. */
    468         icuDate = ucal_getMillis(cal, &errorCode);
    469         if(millis != icuDate) {
    470             /* Print days not millis to stay within printf() range. */
    471             log_err("utmscale_toInt64(ticks[%d], ICU4C)=%dd != %dd=ucal_getMillis(%04d-%02d-%02d)\n",
    472                     (int)i, (int)(millis/dayMillis), (int)(icuDate/dayMillis), (int)dt->year, (int)dt->month, (int)dt->day);
    473         }
    474 
    475         /* Test conversion from ICU time to .Net/Universal time. */
    476         ticks = utmscale_fromInt64((int64_t)icuDate, UDTS_ICU4C_TIME, &errorCode);
    477         if(ticks != dt->ticks) {
    478             /* Print days not ticks to stay within printf() range. */
    479             log_err("utmscale_fromInt64(date[%d], ICU4C)=%dd != %dd=.Net System.DateTime(%04d-%02d-%02d).Ticks\n",
    480                     (int)i, (int)(ticks/dayTicks), (int)(dt->ticks/dayTicks), (int)dt->year, (int)dt->month, (int)dt->day);
    481         }
    482     }
    483 
    484     ucal_close(cal);
    485 }
    486 
    487 #endif /* #if !UCONFIG_NO_FORMATTING */
    488