icuSources/test/intltest/nmfmtrt.cpp

   1 /***********************************************************************
   2  * COPYRIGHT:
   3  * Copyright (c) 1997-2004, 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)
  47 {
  48     if(U_FAILURE(status)) {
  49         errln(UnicodeString("FAIL: ") + msg + " failed, error " + u_errorName(status));
  50         return TRUE;
  51     }
  52
  53     return FALSE;
  54 }
  55
  56 uint32_t
  57 NumberFormatRoundTripTest::randLong()
  58 {
  59     // Assume 8-bit (or larger) rand values.  Also assume
  60     // that the system rand() function is very poor, which it always is.
  61     uint32_t d;
  62     uint32_t i;
  63     char* poke = (char*)&d;
  64     for (i=0; i < sizeof(uint32_t); ++i)
  65     {
  66         poke[i] = (char)(rand() & 0xFF);
  67     }
  68     return d;
  69 }
  70
  71 /**
  72  * Return a random value from -range..+range.
  73  */
  74 double
  75 NumberFormatRoundTripTest::randomDouble(double range)
  76 {
  77     double a = randFraction();
  78     return (2.0 * range * a) - range;
  79 }
  80
  81 void
  82 NumberFormatRoundTripTest::start()
  83 {
  84 // test(NumberFormat.getInstance(new Locale("sr", "", "")));
  85
  86     UErrorCode status = U_ZERO_ERROR;
  87
  88     NumberFormat *fmt = NULL;
  89
  90     logln("Default Locale");
  91
  92     fmt = NumberFormat::createInstance(status);
  93     failure(status, "NumberFormat::createInstance");
  94     test(fmt);
  95     delete fmt;
  96
  97     fmt = NumberFormat::createCurrencyInstance(status);
  98     failure(status, "NumberFormat::createCurrencyInstance");
  99     test(fmt);
 100     delete fmt;
 101
 102     fmt = NumberFormat::createPercentInstance(status);
 103     failure(status, "NumberFormat::createPercentInstance");
 104     test(fmt);
 105     delete fmt;
 106
 107
 108     int32_t locCount = 0;
 109     const Locale *loc = NumberFormat::getAvailableLocales(locCount);
 110     if(quick) {
 111         if(locCount > 5)
 112             locCount = 5;
 113         logln("Quick mode: only testing first 5 Locales");
 114     }
 115     for(int i = 0; i < locCount; ++i) {
 116         UnicodeString name;
 117         logln(loc[i].getDisplayName(name));
 118
 119         fmt = NumberFormat::createInstance(loc[i], status);
 120         failure(status, "NumberFormat::createInstance");
 121         test(fmt);
 122         delete fmt;
 123
 124         fmt = NumberFormat::createCurrencyInstance(loc[i], status);
 125         failure(status, "NumberFormat::createCurrencyInstance");
 126         test(fmt);
 127         delete fmt;
 128
 129         fmt = NumberFormat::createPercentInstance(loc[i], status);
 130         failure(status, "NumberFormat::createPercentInstance");
 131         test(fmt);
 132         delete fmt;
 133     }
 134
 135     logln(UnicodeString("Numeric error ") + min_numeric_error + " to " + max_numeric_error);
 136 }
 137
 138
 139 void
 140 NumberFormatRoundTripTest::test(NumberFormat *fmt)
 141 {
 142 #if IEEE_754 && !defined(OS400)
 143     test(fmt, uprv_getNaN());
 144     test(fmt, uprv_getInfinity());
 145     test(fmt, -uprv_getInfinity());
 146 #endif
 147
 148     test(fmt, (int32_t)500);
 149     test(fmt, (int32_t)0);
 150     test(fmt, (int32_t)-0);
 151     test(fmt, 0.0);
 152     double negZero = 0.0; negZero /= -1.0;
 153     test(fmt, negZero);
 154     test(fmt, 9223372036854775808.0);
 155     test(fmt, -9223372036854775809.0);
 156
 157     for(int i = 0; i < 10; ++i) {
 158         test(fmt, randomDouble(1));
 159         test(fmt, randomDouble(10000));
 160         test(fmt, uprv_floor((randomDouble(10000))));
 161         test(fmt, randomDouble(1e50));
 162         test(fmt, randomDouble(1e-50));
 163 #if !defined(OS390) && !defined(OS400)
 164         test(fmt, randomDouble(1e100));
 165 #elif IEEE_754
 166         test(fmt, randomDouble(1e75));    /*OS390 and OS400*/
 167 #endif /* OS390 and OS400 */
 168         // {sfb} When formatting with a percent instance, numbers very close to
 169         // DBL_MAX will fail the round trip.  This is because:
 170         // 1) Format the double into a string --> INF% (since 100 * double > DBL_MAX)
 171         // 2) Parse the string into a double --> INF
 172         // 3) Re-format the double --> INF%
 173         // 4) The strings are equal, so that works.
 174         // 5) Calculate the proportional error --> INF, so the test will fail
 175         // I'll get around this by dividing by the multiplier to make sure
 176         // the double will stay in range.
 177         //if(fmt->getMultipler() == 1)
 178         if(fmt->getDynamicClassID() == DecimalFormat::getStaticClassID())
 179         {
 180 #if !defined(OS390) && !defined(OS400)
 181             /* DBL_MAX/2 is here because randomDouble does a *2 in the math */
 182             test(fmt, randomDouble(DBL_MAX/2.0) / ((DecimalFormat*)fmt)->getMultiplier());
 183 #elif IEEE_754
 184             test(fmt, randomDouble(1e75) / ((DecimalFormat*)fmt)->getMultiplier());
 185 #else
 186             test(fmt, randomDouble(1e65) / ((DecimalFormat*)fmt)->getMultiplier());   /*OS390*/
 187 #endif
 188         }
 189
 190 #if defined XP_MAC || defined __alpha__ || defined U_OSF
 191 // These machines don't support denormalized doubles,
 192 // so the low-end range doesn't match Windows
 193         test(fmt, randomDouble(1e-292));
 194 #elif defined(OS390) || defined(OS400)
 195 #   if IEEE_754
 196         test(fmt, randomDouble(1e-78));  /*OS390 and OS400*/
 197 #   endif
 198 #else
 199         test(fmt, randomDouble(1e-323));
 200 #endif /* OS390 and OS400*/
 201 #if !defined(OS390) && !defined(OS400)
 202         test(fmt, randomDouble(1e-100));
 203 #elif IEEE_754
 204         test(fmt, randomDouble(1e-78));  /*OS390 and OS400*/
 205 #endif /* OS390 and OS400*/
 206     }
 207 }
 208
 209 void
 210 NumberFormatRoundTripTest::test(NumberFormat *fmt, double value)
 211 {
 212     test(fmt, Formattable(value));
 213 }
 214
 215 void
 216 NumberFormatRoundTripTest::test(NumberFormat *fmt, int32_t value)
 217 {
 218     test(fmt, Formattable(value));
 219 }
 220
 221 void
 222 NumberFormatRoundTripTest::test(NumberFormat *fmt, const Formattable& value)
 223 {
 224     fmt->setMaximumFractionDigits(999);
 225
 226     UErrorCode status = U_ZERO_ERROR;
 227     UnicodeString s, s2, temp;
 228     if(isDouble(value))
 229         s = fmt->format(value.getDouble(), s);
 230     else
 231         s = fmt->format(value.getLong(), s);
 232
 233     Formattable n;
 234     UBool show = verbose;
 235     if(DEBUG)
 236         logln(/*value.getString(temp) +*/ " F> " + escape(s));
 237
 238     fmt->parse(s, n, status);
 239     failure(status, "fmt->parse");
 240     if(DEBUG)
 241         logln(escape(s) + " P> " /*+ n.getString(temp)*/);
 242
 243     if(isDouble(n))
 244         s2 = fmt->format(n.getDouble(), s2);
 245     else
 246         s2 = fmt->format(n.getLong(), s2);
 247
 248     if(DEBUG)
 249         logln(/*n.getString(temp) +*/ " F> " + escape(s2));
 250
 251     if(STRING_COMPARE) {
 252         if (s != s2) {
 253             errln("*** STRING ERROR \"" + escape(s) + "\" != \"" + escape(s2) + "\"");
 254             show = TRUE;
 255         }
 256     }
 257
 258     if(EXACT_NUMERIC_COMPARE) {
 259         if(value != n) {
 260             errln("*** NUMERIC ERROR");
 261             show = TRUE;
 262         }
 263     }
 264     else {
 265         // Compute proportional error
 266         double error = proportionalError(value, n);
 267
 268         if(error > MAX_ERROR) {
 269             errln(UnicodeString("*** NUMERIC ERROR ") + error);
 270             show = TRUE;
 271         }
 272
 273         if (error > max_numeric_error)
 274             max_numeric_error = error;
 275         if (error < min_numeric_error)
 276             min_numeric_error = error;
 277     }
 278
 279     if (show) {
 280         errln(/*value.getString(temp) +*/ typeOf(value, temp) + " F> " +
 281             escape(s) + " P> " +
 282             /*n.getString(temp) +*/ typeOf(n, temp) + " F> " +
 283             escape(s2));
 284     }
 285 }
 286
 287 double
 288 NumberFormatRoundTripTest::proportionalError(const Formattable& a, const Formattable& b)
 289 {
 290     double aa,bb;
 291
 292     if(isDouble(a))
 293         aa = a.getDouble();
 294     else
 295         aa = a.getLong();
 296
 297     if(isDouble(b))
 298         bb = b.getDouble();
 299     else
 300         bb = b.getLong();
 301
 302     double error = aa - bb;
 303     if(aa != 0 && bb != 0)
 304         error /= aa;
 305
 306     return uprv_fabs(error);
 307 }
 308
 309 UnicodeString&
 310 NumberFormatRoundTripTest::typeOf(const Formattable& n, UnicodeString& result)
 311 {
 312     if(n.getType() == Formattable::kLong) {
 313         result = UnicodeString(" Long");
 314     }
 315     else if(n.getType() == Formattable::kDouble) {
 316         result = UnicodeString(" Double");
 317     }
 318     else if(n.getType() == Formattable::kString) {
 319         result = UnicodeString(" UnicodeString");
 320         UnicodeString temp;
 321     }
 322
 323     return result;
 324 }
 325
 326
 327 UnicodeString&
 328 NumberFormatRoundTripTest::escape(UnicodeString& s)
 329 {
 330     UnicodeString copy(s);
 331     s.remove();
 332     for(int i = 0; i < copy.length(); ++i) {
 333         UChar c = copy[i];
 334         if(c < 0x00FF)
 335             s += c;
 336         else {
 337             s += "+U";
 338             char temp[16];
 339             sprintf(temp, "%4X", c);        // might not work
 340             s += temp;
 341         }
 342     }
 343     return s;
 344 }
 345
 346 #endif /* #if !UCONFIG_NO_FORMATTING */