icuSources/test/intltest/tsdate.cpp

   1 // © 2016 and later: Unicode, Inc. and others.
   2 // License & terms of use: http://www.unicode.org/copyright.html
   3 /***********************************************************************
   4  * Copyright (c) 1997-2009, International Business Machines Corporation
   5  * and others. All Rights Reserved.
   6  ***********************************************************************/
   7
   8 #include "unicode/utypes.h"
   9
  10 #if !UCONFIG_NO_FORMATTING
  11
  12 #include "unicode/datefmt.h"
  13 #include "unicode/smpdtfmt.h"
  14 #include "tsdate.h"
  15 #include "putilimp.h"
  16
  17 #include <float.h>
  18 #include <stdlib.h>
  19 #include <math.h>
  20
  21 const double IntlTestDateFormat::ONEYEAR = 365.25 * ONEDAY; // Approximate
  22
  23 IntlTestDateFormat::~IntlTestDateFormat() {}
  24
  25 /**
  26  * This test does round-trip testing (format -> parse -> format -> parse -> etc.) of
  27  * DateFormat.
  28  */
  29 // par is ignored throughout this file
  30 void IntlTestDateFormat::runIndexedTest( int32_t index, UBool exec, const char* &name, char* /*par*/ )
  31 {
  32     if (exec) logln("TestSuite DateFormat");
  33     switch (index) {
  34         case 0: name = "GenericTest";
  35             if (exec) {
  36                 logln(name);
  37                 fFormat = DateFormat::createInstance();
  38                 fTestName = "createInstance";
  39                 fLimit = 3;
  40                 testFormat(/* par */);
  41             }
  42             break;
  43         case 1: name = "DefaultLocale";
  44             if (exec) {
  45                 logln(name);
  46                 testLocale(/*par, */Locale::getDefault(), "Default Locale");
  47             }
  48             break;
  49
  50         case 2: name = "TestAvailableLocales";
  51             if (exec) {
  52                 logln(name);
  53                 testAvailableLocales(/* par */);
  54             }
  55             break;
  56
  57         case 3: name = "MonsterTest";
  58             if (exec) {
  59                 logln(name);
  60                 monsterTest(/*par*/);
  61             }
  62             break;
  63
  64         default: name = ""; break;
  65     }
  66 }
  67
  68 void
  69 IntlTestDateFormat::testLocale(/*char* par, */const Locale& locale, const UnicodeString& localeName)
  70 {
  71     DateFormat::EStyle timeStyle, dateStyle;
  72
  73     // For patterns including only time information and a timezone, it may take
  74     // up to three iterations, since the timezone may shift as the year number
  75     // is determined.  For other patterns, 2 iterations should suffice.
  76     fLimit = 3;
  77
  78     for(timeStyle = (DateFormat::EStyle)0;
  79         timeStyle < (DateFormat::EStyle)4;
  80         timeStyle = (DateFormat::EStyle) (timeStyle+1))
  81     {
  82         fTestName = (UnicodeString) "Time test " + (int32_t) timeStyle + " (" + localeName + ")";
  83         fFormat = DateFormat::createTimeInstance(timeStyle, locale);
  84         testFormat(/* par */);
  85     }
  86
  87     fLimit = 2;
  88
  89     for(dateStyle = (DateFormat::EStyle)0;
  90         dateStyle < (DateFormat::EStyle)4;
  91         dateStyle = (DateFormat::EStyle) (dateStyle+1))
  92     {
  93         fTestName = (UnicodeString) "Date test " + (int32_t) dateStyle + " (" + localeName + ")";
  94         fFormat = DateFormat::createDateInstance(dateStyle, locale);
  95         testFormat(/* par */);
  96     }
  97
  98     for(dateStyle = (DateFormat::EStyle)0;
  99         dateStyle < (DateFormat::EStyle)4;
 100         dateStyle = (DateFormat::EStyle) (dateStyle+1))
 101     {
 102         for(timeStyle = (DateFormat::EStyle)0;
 103             timeStyle < (DateFormat::EStyle)4;
 104             timeStyle = (DateFormat::EStyle) (timeStyle+1))
 105         {
 106             fTestName = (UnicodeString) "DateTime test " + (int32_t) dateStyle + "/" + (int32_t) timeStyle + " (" + localeName + ")";
 107             fFormat = DateFormat::createDateTimeInstance(dateStyle, timeStyle, locale);
 108             testFormat(/* par */);
 109         }
 110     }
 111 }
 112
 113 void IntlTestDateFormat::testFormat(/* char* par */)
 114 {
 115     if (fFormat == 0)
 116     {
 117         dataerrln("FAIL: DateFormat creation failed");
 118         return;
 119     }
 120
 121     describeTest();
 122
 123     UDate now = Calendar::getNow();
 124     tryDate(0);
 125     tryDate(1278161801778.0);
 126     tryDate(5264498352317.0);   // Sunday, October 28, 2136 8:39:12 AM PST
 127     tryDate(9516987689250.0);   // In the year 2271
 128     tryDate(now);
 129     // Shift 6 months into the future, AT THE SAME TIME OF DAY.
 130     // This will test the DST handling.
 131     tryDate(now + 6.0*30*ONEDAY);
 132
 133     UDate limit = now * 10; // Arbitrary limit
 134     for (int32_t i=0; i<3; ++i)
 135         tryDate(uprv_floor(randDouble() * limit));
 136
 137     delete fFormat;
 138 }
 139
 140 void
 141 IntlTestDateFormat::describeTest()
 142 {
 143     // Assume it's a SimpleDateFormat and get some info
 144     SimpleDateFormat *s = (SimpleDateFormat*)fFormat;
 145     UnicodeString str;
 146     logln(fTestName + " Pattern " + s->toPattern(str));
 147 }
 148
 149 void IntlTestDateFormat::tryDate(UDate theDate)
 150 {
 151     const int32_t DEPTH = 10;
 152     UDate date[DEPTH];
 153     UnicodeString string[DEPTH];
 154
 155     int32_t dateMatch = 0;
 156     int32_t stringMatch = 0;
 157     UBool dump = FALSE;
 158 #if defined (U_CAL_DEBUG)
 159     dump = TRUE;
 160 #endif
 161     int32_t i;
 162
 163     date[0] = theDate;
 164     fFormat->format(theDate, string[0]);
 165
 166     for (i=1; i<DEPTH; ++i)
 167     {
 168         UErrorCode status = U_ZERO_ERROR;
 169         date[i] = fFormat->parse(string[i-1], status);
 170         if (U_FAILURE(status))
 171         {
 172             describeTest();
 173             errln("**** FAIL: Parse of " + prettify(string[i-1], FALSE) + " failed.");
 174             dump = TRUE;
 175             break;
 176         }
 177         fFormat->format(date[i], string[i]);
 178         if (dateMatch == 0 && date[i] == date[i-1])
 179             dateMatch = i;
 180         else if (dateMatch > 0 && date[i] != date[i-1])
 181         {
 182             describeTest();
 183             errln("**** FAIL: Date mismatch after match for " + string[i]);
 184             dump = TRUE;
 185             break;
 186         }
 187         if (stringMatch == 0 && string[i] == string[i-1])
 188             stringMatch = i;
 189         else if (stringMatch > 0 && string[i] != string[i-1])
 190         {
 191             describeTest();
 192             errln("**** FAIL: String mismatch after match for " + string[i]);
 193             dump = TRUE;
 194             break;
 195         }
 196         if (dateMatch > 0 && stringMatch > 0)
 197             break;
 198     }
 199     if (i == DEPTH)
 200         --i;
 201
 202     if (stringMatch > fLimit || dateMatch > fLimit)
 203     {
 204         describeTest();
 205         errln((UnicodeString)"**** FAIL: No string and/or date match within " + fLimit
 206             + " iterations for the Date " + string[0] + "\t(" + theDate + ").");
 207         dump = TRUE;
 208     }
 209
 210     if (dump)
 211     {
 212         for (int32_t k=0; k<=i; ++k)
 213         {
 214             logln((UnicodeString)"" + k + ": " + date[k] + " F> " +
 215                   string[k] + " P> ");
 216         }
 217     }
 218 }
 219
 220 // Return a random double from 0.01 to 1, inclusive
 221 double IntlTestDateFormat::randDouble()
 222 {
 223     // Assume 8-bit (or larger) rand values.  Also assume
 224     // that the system rand() function is very poor, which it always is.
 225     double d=0.0;
 226     uint32_t i;
 227     char* poke = (char*)&d;
 228     do {
 229         do {
 230             for (i=0; i < sizeof(double); ++i)
 231             {
 232                 poke[i] = (char)(rand() & 0xFF);
 233             }
 234         } while (uprv_isNaN(d) || uprv_isInfinite(d));
 235
 236         if (d < 0.0)
 237             d = -d;
 238         if (d > 0.0)
 239         {
 240             double e = uprv_floor(log10(d));
 241             if (e < -2.0)
 242                 d *= uprv_pow10((int32_t)(-e-2));
 243             else if (e > -1.0)
 244                 d /= uprv_pow10((int32_t)(e+1));
 245         }
 246     // While this is not a real normalized number make another one.
 247     } while (uprv_isNaN(d) || uprv_isInfinite(d)
 248         || !((-DBL_MAX < d && d < DBL_MAX) || (d < -DBL_MIN && DBL_MIN < d)));
 249     return d;
 250 }
 251
 252 void IntlTestDateFormat::testAvailableLocales(/* char* par */)
 253 {
 254     int32_t count = 0;
 255     const Locale* locales = DateFormat::getAvailableLocales(count);
 256     logln((UnicodeString)"" + count + " available locales");
 257     if (locales && count)
 258     {
 259         UnicodeString name;
 260         UnicodeString all;
 261         for (int32_t i=0; i<count; ++i)
 262         {
 263             if (i!=0) all += ", ";
 264             all += locales[i].getName();
 265         }
 266         logln(all);
 267     }
 268     else dataerrln((UnicodeString)"**** FAIL: Zero available locales or null array pointer");
 269 }
 270
 271 void IntlTestDateFormat::monsterTest(/*char *par*/)
 272 {
 273     int32_t count;
 274     const Locale* locales = DateFormat::getAvailableLocales(count);
 275     if (locales && count)
 276     {
 277         if (quick && count > 3) {
 278             logln("quick test: testing just 3 locales!");
 279             count = 3;
 280         }
 281         for (int32_t i=0; i<count; ++i)
 282         {
 283             UnicodeString name = UnicodeString(locales[i].getName(), "");
 284             logln((UnicodeString)"Testing " + name + "...");
 285             testLocale(/*par, */locales[i], name);
 286         }
 287     }
 288 }
 289
 290 #endif /* #if !UCONFIG_NO_FORMATTING */