icuSources/test/intltest/nmfmtrt.cpp

   1 // © 2016 and later: Unicode, Inc. and others.
   2 // License & terms of use: http://www.unicode.org/copyright.html
   3 /***********************************************************************
   4  * COPYRIGHT:
   5  * Copyright (c) 1997-2015, International Business Machines Corporation
   6  * and others. All Rights Reserved.
   7  ***********************************************************************/
   8
   9 #include "unicode/utypes.h"
  10
  11 #if !UCONFIG_NO_FORMATTING
  12
  13 #include "nmfmtrt.h"
  14
  15 #include "unicode/dcfmtsym.h"
  16 #include "unicode/decimfmt.h"
  17 #include "unicode/locid.h"
  18 #include "putilimp.h"
  19
  20 #include <float.h>
  21 #include <stdio.h>    // for sprintf
  22 #include <stdlib.h>
  23
  24 // *****************************************************************************
  25 // class NumberFormatRoundTripTest
  26 // *****************************************************************************
  27
  28 UBool NumberFormatRoundTripTest::verbose                  = FALSE;
  29 UBool NumberFormatRoundTripTest::STRING_COMPARE           = TRUE;
  30 UBool NumberFormatRoundTripTest::EXACT_NUMERIC_COMPARE    = FALSE;
  31 UBool NumberFormatRoundTripTest::DEBUG_VAR                = FALSE;
  32 double NumberFormatRoundTripTest::MAX_ERROR               = 1e-14;
  33 double NumberFormatRoundTripTest::max_numeric_error       = 0.0;
  34 double NumberFormatRoundTripTest::min_numeric_error       = 1.0;
  35
  36 #define CASE(id,test) case id: name = #test; if (exec) { logln(#test "---"); logln((UnicodeString)""); test(); } break;
  37
  38 void NumberFormatRoundTripTest::runIndexedTest( int32_t index, UBool exec, const char* &name, char* /*par*/ )
  39 {
  40     // if (exec) logln((UnicodeString)"TestSuite NumberFormatRoundTripTest");
  41     switch (index) {
  42         CASE(0, start)
  43         default: name = ""; break;
  44     }
  45 }
  46
  47 UBool
  48 NumberFormatRoundTripTest::failure(UErrorCode status, const char* msg, UBool possibleDataError)
  49 {
  50     if(U_FAILURE(status)) {
  51         if (possibleDataError) {
  52             dataerrln(UnicodeString("FAIL: ") + msg + " failed, error " + u_errorName(status));
  53         } else {
  54             errln(UnicodeString("FAIL: ") + msg + " failed, error " + u_errorName(status));
  55         }
  56         return TRUE;
  57     }
  58
  59     return FALSE;
  60 }
  61
  62 uint32_t
  63 NumberFormatRoundTripTest::randLong()
  64 {
  65     // Assume 8-bit (or larger) rand values.  Also assume
  66     // that the system rand() function is very poor, which it always is.
  67     uint32_t d;
  68     uint32_t i;
  69     char* poke = (char*)&d;
  70     for (i=0; i < sizeof(uint32_t); ++i)
  71     {
  72         poke[i] = (char)(rand() & 0xFF);
  73     }
  74     return d;
  75 }
  76
  77 /**
  78  * Return a random value from -range..+range.
  79  */
  80 double
  81 NumberFormatRoundTripTest::randomDouble(double range)
  82 {
  83     double a = randFraction();
  84     return (2.0 * range * a) - range;
  85 }
  86
  87 void
  88 NumberFormatRoundTripTest::start()
  89 {
  90 // test(NumberFormat.getInstance(new Locale("sr", "", "")));
  91
  92     UErrorCode status = U_ZERO_ERROR;
  93
  94     NumberFormat *fmt = NULL;
  95
  96     logln("Default Locale");
  97
  98     fmt = NumberFormat::createInstance(status);
  99     if (!failure(status, "NumberFormat::createInstance", TRUE)){
 100         test(fmt);
 101     }
 102     delete fmt;
 103
 104     fmt = NumberFormat::createCurrencyInstance(status);
 105     if (!failure(status, "NumberFormat::createCurrencyInstance", TRUE)){
 106         test(fmt);
 107     }
 108     delete fmt;
 109
 110     fmt = NumberFormat::createPercentInstance(status);
 111     if (!failure(status, "NumberFormat::createPercentInstance", TRUE)){
 112         test(fmt);
 113     }
 114     delete fmt;
 115
 116
 117     int32_t locCount = 0;
 118     const Locale *loc = NumberFormat::getAvailableLocales(locCount);
 119     if(quick) {
 120         if(locCount > 5)
 121             locCount = 5;
 122         logln("Quick mode: only testing first 5 Locales");
 123     }
 124     for(int i = 0; i < locCount; ++i) {
 125         UnicodeString name;
 126         logln(loc[i].getDisplayName(name));
 127
 128         fmt = NumberFormat::createInstance(loc[i], status);
 129         failure(status, "NumberFormat::createInstance");
 130         test(fmt);
 131         delete fmt;
 132
 133         fmt = NumberFormat::createCurrencyInstance(loc[i], status);
 134         failure(status, "NumberFormat::createCurrencyInstance");
 135         test(fmt);
 136         delete fmt;
 137
 138         fmt = NumberFormat::createPercentInstance(loc[i], status);
 139         failure(status, "NumberFormat::createPercentInstance");
 140         test(fmt);
 141         delete fmt;
 142     }
 143
 144     logln(UnicodeString("Numeric error ") + min_numeric_error + " to " + max_numeric_error);
 145 }
 146
 147
 148 void
 149 NumberFormatRoundTripTest::test(NumberFormat *fmt)
 150 {
 151 #if IEEE_754 && U_PLATFORM != U_PF_OS400
 152     test(fmt, uprv_getNaN());
 153     test(fmt, uprv_getInfinity());
 154     test(fmt, -uprv_getInfinity());
 155 #endif
 156
 157     test(fmt, (int32_t)500);
 158     test(fmt, (int32_t)0);
 159     test(fmt, (int32_t)-0);
 160     test(fmt, 0.0);
 161     double negZero = 0.0; negZero /= -1.0;
 162     test(fmt, negZero);
 163     test(fmt, 9223372036854775808.0);
 164     test(fmt, -9223372036854775809.0);
 165
 166     for(int i = 0; i < 10; ++i) {
 167         test(fmt, randomDouble(1));
 168         test(fmt, randomDouble(10000));
 169         test(fmt, uprv_floor((randomDouble(10000))));
 170         test(fmt, randomDouble(1e50));
 171         test(fmt, randomDouble(1e-50));
 172 #if !(U_PF_OS390 <= U_PLATFORM && U_PLATFORM <= U_PF_OS400)
 173         test(fmt, randomDouble(1e100));
 174 #elif IEEE_754
 175         test(fmt, randomDouble(1e75));
 176 #endif /* OS390 and OS400 */
 177         // {sfb} When formatting with a percent instance, numbers very close to
 178         // DBL_MAX will fail the round trip.  This is because:
 179         // 1) Format the double into a string --> INF% (since 100 * double > DBL_MAX)
 180         // 2) Parse the string into a double --> INF
 181         // 3) Re-format the double --> INF%
 182         // 4) The strings are equal, so that works.
 183         // 5) Calculate the proportional error --> INF, so the test will fail
 184         // I'll get around this by dividing by the multiplier to make sure
 185         // the double will stay in range.
 186         //if(fmt->getMultipler() == 1)
 187         DecimalFormat *df = dynamic_cast<DecimalFormat *>(fmt);
 188         if(df != NULL)
 189         {
 190 #if !(U_PF_OS390 <= U_PLATFORM && U_PLATFORM <= U_PF_OS400)
 191             /* DBL_MAX/2 is here because randomDouble does a *2 in the math */
 192             test(fmt, randomDouble(DBL_MAX/2.0) / df->getMultiplier());
 193 #elif IEEE_754
 194             test(fmt, randomDouble(1e75) / df->getMultiplier());
 195 #else
 196             test(fmt, randomDouble(1e65) / df->getMultiplier());
 197 #endif
 198         }
 199
 200 #if (defined(_MSC_VER) && _MSC_VER < 1400) || defined(__alpha__) || defined(U_OSF)
 201         // These machines and compilers don't fully support denormalized doubles,
 202         test(fmt, randomDouble(1e-292));
 203         test(fmt, randomDouble(1e-100));
 204 #elif U_PF_OS390 <= U_PLATFORM && U_PLATFORM <= U_PF_OS400
 205         // i5/OS (OS/400) throws exceptions on denormalized numbers
 206 #   if IEEE_754
 207         test(fmt, randomDouble(1e-78));
 208         test(fmt, randomDouble(1e-78));
 209         // #else we're using something like the old z/OS floating point.
 210 #   endif
 211 #else
 212         // This is a normal machine that can support IEEE754 denormalized doubles without throwing an error.
 213         test(fmt, randomDouble(DBL_MIN)); /* Usually 2.2250738585072014e-308 */
 214         test(fmt, randomDouble(1e-100));
 215 #endif
 216     }
 217 }
 218
 219 void
 220 NumberFormatRoundTripTest::test(NumberFormat *fmt, double value)
 221 {
 222     test(fmt, Formattable(value));
 223 }
 224
 225 void
 226 NumberFormatRoundTripTest::test(NumberFormat *fmt, int32_t value)
 227 {
 228     test(fmt, Formattable(value));
 229 }
 230
 231 void
 232 NumberFormatRoundTripTest::test(NumberFormat *fmt, const Formattable& value)
 233 {
 234     fmt->setMaximumFractionDigits(999);
 235     DecimalFormat *df = dynamic_cast<DecimalFormat *>(fmt);
 236     if(df != NULL) {
 237         df->setRoundingIncrement(0.0);
 238     }
 239     UErrorCode status = U_ZERO_ERROR;
 240     UnicodeString s, s2, temp;
 241     if(isDouble(value))
 242         s = fmt->format(value.getDouble(), s);
 243     else
 244         s = fmt->format(value.getLong(), s);
 245
 246     Formattable n;
 247     UBool show = verbose;
 248     if(DEBUG_VAR)
 249         logln(/*value.getString(temp) +*/ " F> " + escape(s));
 250
 251     fmt->parse(s, n, status);
 252     failure(status, "fmt->parse");
 253     if(DEBUG_VAR)
 254         logln(escape(s) + " P> " /*+ n.getString(temp)*/);
 255
 256     if(isDouble(n))
 257         s2 = fmt->format(n.getDouble(), s2);
 258     else
 259         s2 = fmt->format(n.getLong(), s2);
 260
 261     if(DEBUG_VAR)
 262         logln(/*n.getString(temp) +*/ " F> " + escape(s2));
 263
 264     if(STRING_COMPARE) {
 265         if (s != s2) {
 266             errln("*** STRING ERROR \"" + escape(s) + "\" != \"" + escape(s2) + "\"");
 267             show = TRUE;
 268         }
 269     }
 270
 271     if(EXACT_NUMERIC_COMPARE) {
 272         if(value != n) {
 273             errln("*** NUMERIC ERROR");
 274             show = TRUE;
 275         }
 276     }
 277     else {
 278         // Compute proportional error
 279         double error = proportionalError(value, n);
 280
 281         if(error > MAX_ERROR) {
 282             errln(UnicodeString("*** NUMERIC ERROR ") + error);
 283             show = TRUE;
 284         }
 285
 286         if (error > max_numeric_error)
 287             max_numeric_error = error;
 288         if (error < min_numeric_error)
 289             min_numeric_error = error;
 290     }
 291
 292     if (show) {
 293         errln(/*value.getString(temp) +*/ typeOf(value, temp) + " F> " +
 294             escape(s) + " P> " + (n.getType() == Formattable::kDouble ? n.getDouble() : (double)n.getLong())
 295             /*n.getString(temp) */ + typeOf(n, temp) + " F> " +
 296             escape(s2));
 297     }
 298 }
 299
 300 double
 301 NumberFormatRoundTripTest::proportionalError(const Formattable& a, const Formattable& b)
 302 {
 303     double aa,bb;
 304
 305     if(isDouble(a))
 306         aa = a.getDouble();
 307     else
 308         aa = a.getLong();
 309
 310     if(isDouble(b))
 311         bb = b.getDouble();
 312     else
 313         bb = b.getLong();
 314
 315     double error = aa - bb;
 316     if(aa != 0 && bb != 0)
 317         error /= aa;
 318
 319     return uprv_fabs(error);
 320 }
 321
 322 UnicodeString&
 323 NumberFormatRoundTripTest::typeOf(const Formattable& n, UnicodeString& result)
 324 {
 325     if(n.getType() == Formattable::kLong) {
 326         result = UnicodeString(" Long");
 327     }
 328     else if(n.getType() == Formattable::kDouble) {
 329         result = UnicodeString(" Double");
 330     }
 331     else if(n.getType() == Formattable::kString) {
 332         result = UnicodeString(" UnicodeString");
 333         UnicodeString temp;
 334     }
 335
 336     return result;
 337 }
 338
 339
 340 UnicodeString&
 341 NumberFormatRoundTripTest::escape(UnicodeString& s)
 342 {
 343     UnicodeString copy(s);
 344     s.remove();
 345     for(int i = 0; i < copy.length(); ++i) {
 346         UChar c = copy[i];
 347         if(c < 0x00FF)
 348             s += c;
 349         else {
 350             s += "+U";
 351             char temp[16];
 352             sprintf(temp, "%4X", c);        // might not work
 353             s += temp;
 354         }
 355     }
 356     return s;
 357 }
 358
 359 #endif /* #if !UCONFIG_NO_FORMATTING */