icuSources/test/intltest/nmfmtrt.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 "nmfmtrt.h"
  12
  13 #include "unicode/dcfmtsym.h"
  14 #include "unicode/decimfmt.h"
  15 #include "unicode/locid.h"
  16 #include "putilimp.h"
  17
  18 #include <float.h>
  19 #include <stdio.h>    // for sprintf
  20 #include <stdlib.h>
  21
  22 // *****************************************************************************
  23 // class NumberFormatRoundTripTest
  24 // *****************************************************************************
  25
  26 UBool NumberFormatRoundTripTest::verbose                  = FALSE;
  27 UBool NumberFormatRoundTripTest::STRING_COMPARE           = TRUE;
  28 UBool NumberFormatRoundTripTest::EXACT_NUMERIC_COMPARE    = FALSE;
  29 UBool NumberFormatRoundTripTest::DEBUG                    = FALSE;
  30 double NumberFormatRoundTripTest::MAX_ERROR               = 1e-14;
  31 double NumberFormatRoundTripTest::max_numeric_error       = 0.0;
  32 double NumberFormatRoundTripTest::min_numeric_error       = 1.0;
  33
  34 #define CASE(id,test) case id: name = #test; if (exec) { logln(#test "---"); logln((UnicodeString)""); test(); } break;
  35
  36 void NumberFormatRoundTripTest::runIndexedTest( int32_t index, UBool exec, const char* &name, char* /*par*/ )
  37 {
  38     // if (exec) logln((UnicodeString)"TestSuite NumberFormatRoundTripTest");
  39     switch (index) {
  40         CASE(0, start)
  41         default: name = ""; break;
  42     }
  43 }
  44
  45 UBool
  46 NumberFormatRoundTripTest::failure(UErrorCode status, const char* msg, UBool possibleDataError)
  47 {
  48     if(U_FAILURE(status)) {
  49         if (possibleDataError) {
  50             dataerrln(UnicodeString("FAIL: ") + msg + " failed, error " + u_errorName(status));
  51         } else {
  52             errln(UnicodeString("FAIL: ") + msg + " failed, error " + u_errorName(status));
  53         }
  54         return TRUE;
  55     }
  56
  57     return FALSE;
  58 }
  59
  60 uint32_t
  61 NumberFormatRoundTripTest::randLong()
  62 {
  63     // Assume 8-bit (or larger) rand values.  Also assume
  64     // that the system rand() function is very poor, which it always is.
  65     uint32_t d;
  66     uint32_t i;
  67     char* poke = (char*)&d;
  68     for (i=0; i < sizeof(uint32_t); ++i)
  69     {
  70         poke[i] = (char)(rand() & 0xFF);
  71     }
  72     return d;
  73 }
  74
  75 /**
  76  * Return a random value from -range..+range.
  77  */
  78 double
  79 NumberFormatRoundTripTest::randomDouble(double range)
  80 {
  81     double a = randFraction();
  82     return (2.0 * range * a) - range;
  83 }
  84
  85 void
  86 NumberFormatRoundTripTest::start()
  87 {
  88 // test(NumberFormat.getInstance(new Locale("sr", "", "")));
  89
  90     UErrorCode status = U_ZERO_ERROR;
  91
  92     NumberFormat *fmt = NULL;
  93
  94     logln("Default Locale");
  95
  96     fmt = NumberFormat::createInstance(status);
  97     if (!failure(status, "NumberFormat::createInstance", TRUE)){
  98         test(fmt);
  99     }
 100     delete fmt;
 101
 102     fmt = NumberFormat::createCurrencyInstance(status);
 103     if (!failure(status, "NumberFormat::createCurrencyInstance", TRUE)){
 104         test(fmt);
 105     }
 106     delete fmt;
 107
 108     fmt = NumberFormat::createPercentInstance(status);
 109     if (!failure(status, "NumberFormat::createPercentInstance", TRUE)){
 110         test(fmt);
 111     }
 112     delete fmt;
 113
 114
 115     int32_t locCount = 0;
 116     const Locale *loc = NumberFormat::getAvailableLocales(locCount);
 117     if(quick) {
 118         if(locCount > 5)
 119             locCount = 5;
 120         logln("Quick mode: only testing first 5 Locales");
 121     }
 122     for(int i = 0; i < locCount; ++i) {
 123         UnicodeString name;
 124         logln(loc[i].getDisplayName(name));
 125
 126         fmt = NumberFormat::createInstance(loc[i], status);
 127         failure(status, "NumberFormat::createInstance");
 128         test(fmt);
 129         delete fmt;
 130
 131         fmt = NumberFormat::createCurrencyInstance(loc[i], status);
 132         failure(status, "NumberFormat::createCurrencyInstance");
 133         test(fmt);
 134         delete fmt;
 135
 136         fmt = NumberFormat::createPercentInstance(loc[i], status);
 137         failure(status, "NumberFormat::createPercentInstance");
 138         test(fmt);
 139         delete fmt;
 140     }
 141
 142     logln(UnicodeString("Numeric error ") + min_numeric_error + " to " + max_numeric_error);
 143 }
 144
 145
 146 void
 147 NumberFormatRoundTripTest::test(NumberFormat *fmt)
 148 {
 149 #if IEEE_754 && U_PLATFORM != U_PF_OS400
 150     test(fmt, uprv_getNaN());
 151     test(fmt, uprv_getInfinity());
 152     test(fmt, -uprv_getInfinity());
 153 #endif
 154
 155     test(fmt, (int32_t)500);
 156     test(fmt, (int32_t)0);
 157     test(fmt, (int32_t)-0);
 158     test(fmt, 0.0);
 159     double negZero = 0.0; negZero /= -1.0;
 160     test(fmt, negZero);
 161     test(fmt, 9223372036854775808.0);
 162     test(fmt, -9223372036854775809.0);
 163
 164     for(int i = 0; i < 10; ++i) {
 165         test(fmt, randomDouble(1));
 166         test(fmt, randomDouble(10000));
 167         test(fmt, uprv_floor((randomDouble(10000))));
 168         test(fmt, randomDouble(1e50));
 169         test(fmt, randomDouble(1e-50));
 170 #if !(U_PF_OS390 <= U_PLATFORM && U_PLATFORM <= U_PF_OS400)
 171         test(fmt, randomDouble(1e100));
 172 #elif IEEE_754
 173         test(fmt, randomDouble(1e75));
 174 #endif /* OS390 and OS400 */
 175         // {sfb} When formatting with a percent instance, numbers very close to
 176         // DBL_MAX will fail the round trip.  This is because:
 177         // 1) Format the double into a string --> INF% (since 100 * double > DBL_MAX)
 178         // 2) Parse the string into a double --> INF
 179         // 3) Re-format the double --> INF%
 180         // 4) The strings are equal, so that works.
 181         // 5) Calculate the proportional error --> INF, so the test will fail
 182         // I'll get around this by dividing by the multiplier to make sure
 183         // the double will stay in range.
 184         //if(fmt->getMultipler() == 1)
 185         DecimalFormat *df = dynamic_cast<DecimalFormat *>(fmt);
 186         if(df != NULL)
 187         {
 188 #if !(U_PF_OS390 <= U_PLATFORM && U_PLATFORM <= U_PF_OS400)
 189             /* DBL_MAX/2 is here because randomDouble does a *2 in the math */
 190             test(fmt, randomDouble(DBL_MAX/2.0) / df->getMultiplier());
 191 #elif IEEE_754
 192             test(fmt, randomDouble(1e75) / df->getMultiplier());
 193 #else
 194             test(fmt, randomDouble(1e65) / df->getMultiplier());
 195 #endif
 196         }
 197
 198 #if (defined(_MSC_VER) && _MSC_VER < 1400) || defined(__alpha__) || defined(U_OSF)
 199         // These machines and compilers don't fully support denormalized doubles,
 200         test(fmt, randomDouble(1e-292));
 201         test(fmt, randomDouble(1e-100));
 202 #elif U_PF_OS390 <= U_PLATFORM && U_PLATFORM <= U_PF_OS400
 203         // i5/OS (OS/400) throws exceptions on denormalized numbers
 204 #   if IEEE_754
 205         test(fmt, randomDouble(1e-78));
 206         test(fmt, randomDouble(1e-78));
 207         // #else we're using something like the old z/OS floating point.
 208 #   endif
 209 #else
 210         // This is a normal machine that can support IEEE754 denormalized doubles without throwing an error.
 211         test(fmt, randomDouble(DBL_MIN)); /* Usually 2.2250738585072014e-308 */
 212         test(fmt, randomDouble(1e-100));
 213 #endif
 214     }
 215 }
 216
 217 void
 218 NumberFormatRoundTripTest::test(NumberFormat *fmt, double value)
 219 {
 220     test(fmt, Formattable(value));
 221 }
 222
 223 void
 224 NumberFormatRoundTripTest::test(NumberFormat *fmt, int32_t value)
 225 {
 226     test(fmt, Formattable(value));
 227 }
 228
 229 void
 230 NumberFormatRoundTripTest::test(NumberFormat *fmt, const Formattable& value)
 231 {
 232     fmt->setMaximumFractionDigits(999);
 233     DecimalFormat *df = dynamic_cast<DecimalFormat *>(fmt);
 234     if(df != NULL) {
 235         df->setRoundingIncrement(0.0);
 236     }
 237     UErrorCode status = U_ZERO_ERROR;
 238     UnicodeString s, s2, temp;
 239     if(isDouble(value))
 240         s = fmt->format(value.getDouble(), s);
 241     else
 242         s = fmt->format(value.getLong(), s);
 243
 244     Formattable n;
 245     UBool show = verbose;
 246     if(DEBUG)
 247         logln(/*value.getString(temp) +*/ " F> " + escape(s));
 248
 249     fmt->parse(s, n, status);
 250     failure(status, "fmt->parse");
 251     if(DEBUG)
 252         logln(escape(s) + " P> " /*+ n.getString(temp)*/);
 253
 254     if(isDouble(n))
 255         s2 = fmt->format(n.getDouble(), s2);
 256     else
 257         s2 = fmt->format(n.getLong(), s2);
 258
 259     if(DEBUG)
 260         logln(/*n.getString(temp) +*/ " F> " + escape(s2));
 261
 262     if(STRING_COMPARE) {
 263         if (s != s2) {
 264             errln("*** STRING ERROR \"" + escape(s) + "\" != \"" + escape(s2) + "\"");
 265             show = TRUE;
 266         }
 267     }
 268
 269     if(EXACT_NUMERIC_COMPARE) {
 270         if(value != n) {
 271             errln("*** NUMERIC ERROR");
 272             show = TRUE;
 273         }
 274     }
 275     else {
 276         // Compute proportional error
 277         double error = proportionalError(value, n);
 278
 279         if(error > MAX_ERROR) {
 280             errln(UnicodeString("*** NUMERIC ERROR ") + error);
 281             show = TRUE;
 282         }
 283
 284         if (error > max_numeric_error)
 285             max_numeric_error = error;
 286         if (error < min_numeric_error)
 287             min_numeric_error = error;
 288     }
 289
 290     if (show) {
 291         errln(/*value.getString(temp) +*/ typeOf(value, temp) + " F> " +
 292             escape(s) + " P> " + (n.getType() == Formattable::kDouble ? n.getDouble() : (double)n.getLong())
 293             /*n.getString(temp) */ + typeOf(n, temp) + " F> " +
 294             escape(s2));
 295     }
 296 }
 297
 298 double
 299 NumberFormatRoundTripTest::proportionalError(const Formattable& a, const Formattable& b)
 300 {
 301     double aa,bb;
 302
 303     if(isDouble(a))
 304         aa = a.getDouble();
 305     else
 306         aa = a.getLong();
 307
 308     if(isDouble(b))
 309         bb = b.getDouble();
 310     else
 311         bb = b.getLong();
 312
 313     double error = aa - bb;
 314     if(aa != 0 && bb != 0)
 315         error /= aa;
 316
 317     return uprv_fabs(error);
 318 }
 319
 320 UnicodeString&
 321 NumberFormatRoundTripTest::typeOf(const Formattable& n, UnicodeString& result)
 322 {
 323     if(n.getType() == Formattable::kLong) {
 324         result = UnicodeString(" Long");
 325     }
 326     else if(n.getType() == Formattable::kDouble) {
 327         result = UnicodeString(" Double");
 328     }
 329     else if(n.getType() == Formattable::kString) {
 330         result = UnicodeString(" UnicodeString");
 331         UnicodeString temp;
 332     }
 333
 334     return result;
 335 }
 336
 337
 338 UnicodeString&
 339 NumberFormatRoundTripTest::escape(UnicodeString& s)
 340 {
 341     UnicodeString copy(s);
 342     s.remove();
 343     for(int i = 0; i < copy.length(); ++i) {
 344         UChar c = copy[i];
 345         if(c < 0x00FF)
 346             s += c;
 347         else {
 348             s += "+U";
 349             char temp[16];
 350             sprintf(temp, "%4X", c);        // might not work
 351             s += temp;
 352         }
 353     }
 354     return s;
 355 }
 356
 357 #endif /* #if !UCONFIG_NO_FORMATTING */