icuSources/test/intltest/nmfmtrt.cpp

   1 /***********************************************************************
   2  * COPYRIGHT:
   3  * Copyright (c) 1997-2007, 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     if (!failure(status, "NumberFormat::createInstance")){
  94         test(fmt);
  95     }
  96     delete fmt;
  97
  98     fmt = NumberFormat::createCurrencyInstance(status);
  99     if (!failure(status, "NumberFormat::createCurrencyInstance")){
 100         test(fmt);
 101     }
 102     delete fmt;
 103
 104     fmt = NumberFormat::createPercentInstance(status);
 105     if (!failure(status, "NumberFormat::createPercentInstance")){
 106         test(fmt);
 107     }
 108     delete fmt;
 109
 110
 111     int32_t locCount = 0;
 112     const Locale *loc = NumberFormat::getAvailableLocales(locCount);
 113     if(quick) {
 114         if(locCount > 5)
 115             locCount = 5;
 116         logln("Quick mode: only testing first 5 Locales");
 117     }
 118     for(int i = 0; i < locCount; ++i) {
 119         UnicodeString name;
 120         logln(loc[i].getDisplayName(name));
 121
 122         fmt = NumberFormat::createInstance(loc[i], status);
 123         failure(status, "NumberFormat::createInstance");
 124         test(fmt);
 125         delete fmt;
 126
 127         fmt = NumberFormat::createCurrencyInstance(loc[i], status);
 128         failure(status, "NumberFormat::createCurrencyInstance");
 129         test(fmt);
 130         delete fmt;
 131
 132         fmt = NumberFormat::createPercentInstance(loc[i], status);
 133         failure(status, "NumberFormat::createPercentInstance");
 134         test(fmt);
 135         delete fmt;
 136     }
 137
 138     logln(UnicodeString("Numeric error ") + min_numeric_error + " to " + max_numeric_error);
 139 }
 140
 141
 142 void
 143 NumberFormatRoundTripTest::test(NumberFormat *fmt)
 144 {
 145 #if IEEE_754 && !defined(OS400)
 146     test(fmt, uprv_getNaN());
 147     test(fmt, uprv_getInfinity());
 148     test(fmt, -uprv_getInfinity());
 149 #endif
 150
 151     test(fmt, (int32_t)500);
 152     test(fmt, (int32_t)0);
 153     test(fmt, (int32_t)-0);
 154     test(fmt, 0.0);
 155     double negZero = 0.0; negZero /= -1.0;
 156     test(fmt, negZero);
 157     test(fmt, 9223372036854775808.0);
 158     test(fmt, -9223372036854775809.0);
 159
 160     for(int i = 0; i < 10; ++i) {
 161         test(fmt, randomDouble(1));
 162         test(fmt, randomDouble(10000));
 163         test(fmt, uprv_floor((randomDouble(10000))));
 164         test(fmt, randomDouble(1e50));
 165         test(fmt, randomDouble(1e-50));
 166 #if !defined(OS390) && !defined(OS400)
 167         test(fmt, randomDouble(1e100));
 168 #elif IEEE_754
 169         test(fmt, randomDouble(1e75));    /*OS390 and OS400*/
 170 #endif /* OS390 and OS400 */
 171         // {sfb} When formatting with a percent instance, numbers very close to
 172         // DBL_MAX will fail the round trip.  This is because:
 173         // 1) Format the double into a string --> INF% (since 100 * double > DBL_MAX)
 174         // 2) Parse the string into a double --> INF
 175         // 3) Re-format the double --> INF%
 176         // 4) The strings are equal, so that works.
 177         // 5) Calculate the proportional error --> INF, so the test will fail
 178         // I'll get around this by dividing by the multiplier to make sure
 179         // the double will stay in range.
 180         //if(fmt->getMultipler() == 1)
 181         if(fmt->getDynamicClassID() == DecimalFormat::getStaticClassID())
 182         {
 183 #if !defined(OS390) && !defined(OS400)
 184             /* DBL_MAX/2 is here because randomDouble does a *2 in the math */
 185             test(fmt, randomDouble(DBL_MAX/2.0) / ((DecimalFormat*)fmt)->getMultiplier());
 186 #elif IEEE_754
 187             test(fmt, randomDouble(1e75) / ((DecimalFormat*)fmt)->getMultiplier());
 188 #else
 189             test(fmt, randomDouble(1e65) / ((DecimalFormat*)fmt)->getMultiplier());   /*OS390*/
 190 #endif
 191         }
 192
 193 #if (defined(_MSC_VER) && _MSC_VER < 1400) || defined(__alpha__) || defined(U_OSF)
 194         // These machines and compilers don't fully support denormalized doubles,
 195         test(fmt, randomDouble(1e-292));
 196         test(fmt, randomDouble(1e-100));
 197 #elif defined(OS390) || defined(OS400)
 198         // i5/OS (OS400) throws exceptions on denormalized numbers
 199 #   if IEEE_754
 200         test(fmt, randomDouble(1e-78));
 201         test(fmt, randomDouble(1e-78));
 202         // #else we're using something like the old z/OS floating point.
 203 #   endif
 204 #else
 205         // This is a normal machine that can support IEEE754 denormalized doubles without throwing an error.
 206         test(fmt, randomDouble(DBL_MIN)); /* Usually 2.2250738585072014e-308 */
 207         test(fmt, randomDouble(1e-100));
 208 #endif
 209     }
 210 }
 211
 212 void
 213 NumberFormatRoundTripTest::test(NumberFormat *fmt, double value)
 214 {
 215     test(fmt, Formattable(value));
 216 }
 217
 218 void
 219 NumberFormatRoundTripTest::test(NumberFormat *fmt, int32_t value)
 220 {
 221     test(fmt, Formattable(value));
 222 }
 223
 224 void
 225 NumberFormatRoundTripTest::test(NumberFormat *fmt, const Formattable& value)
 226 {
 227     fmt->setMaximumFractionDigits(999);
 228     if(fmt->getDynamicClassID() == DecimalFormat::getStaticClassID()) {
 229         ((DecimalFormat *)fmt)->setRoundingIncrement(0.0);
 230     }
 231     UErrorCode status = U_ZERO_ERROR;
 232     UnicodeString s, s2, temp;
 233     if(isDouble(value))
 234         s = fmt->format(value.getDouble(), s);
 235     else
 236         s = fmt->format(value.getLong(), s);
 237
 238     Formattable n;
 239     UBool show = verbose;
 240     if(DEBUG)
 241         logln(/*value.getString(temp) +*/ " F> " + escape(s));
 242
 243     fmt->parse(s, n, status);
 244     failure(status, "fmt->parse");
 245     if(DEBUG)
 246         logln(escape(s) + " P> " /*+ n.getString(temp)*/);
 247
 248     if(isDouble(n))
 249         s2 = fmt->format(n.getDouble(), s2);
 250     else
 251         s2 = fmt->format(n.getLong(), s2);
 252
 253     if(DEBUG)
 254         logln(/*n.getString(temp) +*/ " F> " + escape(s2));
 255
 256     if(STRING_COMPARE) {
 257         if (s != s2) {
 258             errln("*** STRING ERROR \"" + escape(s) + "\" != \"" + escape(s2) + "\"");
 259             show = TRUE;
 260         }
 261     }
 262
 263     if(EXACT_NUMERIC_COMPARE) {
 264         if(value != n) {
 265             errln("*** NUMERIC ERROR");
 266             show = TRUE;
 267         }
 268     }
 269     else {
 270         // Compute proportional error
 271         double error = proportionalError(value, n);
 272
 273         if(error > MAX_ERROR) {
 274             errln(UnicodeString("*** NUMERIC ERROR ") + error);
 275             show = TRUE;
 276         }
 277
 278         if (error > max_numeric_error)
 279             max_numeric_error = error;
 280         if (error < min_numeric_error)
 281             min_numeric_error = error;
 282     }
 283
 284     if (show) {
 285         errln(/*value.getString(temp) +*/ typeOf(value, temp) + " F> " +
 286             escape(s) + " P> " + (n.getType() == Formattable::kDouble ? n.getDouble() : (double)n.getLong())
 287             /*n.getString(temp) */ + typeOf(n, temp) + " F> " +
 288             escape(s2));
 289     }
 290 }
 291
 292 double
 293 NumberFormatRoundTripTest::proportionalError(const Formattable& a, const Formattable& b)
 294 {
 295     double aa,bb;
 296
 297     if(isDouble(a))
 298         aa = a.getDouble();
 299     else
 300         aa = a.getLong();
 301
 302     if(isDouble(b))
 303         bb = b.getDouble();
 304     else
 305         bb = b.getLong();
 306
 307     double error = aa - bb;
 308     if(aa != 0 && bb != 0)
 309         error /= aa;
 310
 311     return uprv_fabs(error);
 312 }
 313
 314 UnicodeString&
 315 NumberFormatRoundTripTest::typeOf(const Formattable& n, UnicodeString& result)
 316 {
 317     if(n.getType() == Formattable::kLong) {
 318         result = UnicodeString(" Long");
 319     }
 320     else if(n.getType() == Formattable::kDouble) {
 321         result = UnicodeString(" Double");
 322     }
 323     else if(n.getType() == Formattable::kString) {
 324         result = UnicodeString(" UnicodeString");
 325         UnicodeString temp;
 326     }
 327
 328     return result;
 329 }
 330
 331
 332 UnicodeString&
 333 NumberFormatRoundTripTest::escape(UnicodeString& s)
 334 {
 335     UnicodeString copy(s);
 336     s.remove();
 337     for(int i = 0; i < copy.length(); ++i) {
 338         UChar c = copy[i];
 339         if(c < 0x00FF)
 340             s += c;
 341         else {
 342             s += "+U";
 343             char temp[16];
 344             sprintf(temp, "%4X", c);        // might not work
 345             s += temp;
 346         }
 347     }
 348     return s;
 349 }
 350
 351 #endif /* #if !UCONFIG_NO_FORMATTING */