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 #include "cstring.h"
  20
  21 #include <float.h>
  22 #include <stdio.h>    // for sprintf
  23 #include <stdlib.h>
  24
  25 // *****************************************************************************
  26 // class NumberFormatRoundTripTest
  27 // *****************************************************************************
  28
  29 UBool NumberFormatRoundTripTest::verbose                  = FALSE;
  30 UBool NumberFormatRoundTripTest::STRING_COMPARE           = TRUE;
  31 UBool NumberFormatRoundTripTest::EXACT_NUMERIC_COMPARE    = FALSE;
  32 UBool NumberFormatRoundTripTest::DEBUG_VAR                = FALSE;
  33 double NumberFormatRoundTripTest::MAX_ERROR               = 1e-14;
  34 double NumberFormatRoundTripTest::max_numeric_error       = 0.0;
  35 double NumberFormatRoundTripTest::min_numeric_error       = 1.0;
  36
  37 #define CASE(id,test) case id: name = #test; if (exec) { logln(#test "---"); logln((UnicodeString)""); test(); } break;
  38
  39 void NumberFormatRoundTripTest::runIndexedTest( int32_t index, UBool exec, const char* &name, char* /*par*/ )
  40 {
  41     // if (exec) logln((UnicodeString)"TestSuite NumberFormatRoundTripTest");
  42     switch (index) {
  43         CASE(0, start)
  44         default: name = ""; break;
  45     }
  46 }
  47
  48 UBool
  49 NumberFormatRoundTripTest::failure(UErrorCode status, const char* msg, UBool possibleDataError)
  50 {
  51     if(U_FAILURE(status)) {
  52         if (possibleDataError) {
  53             dataerrln(UnicodeString("FAIL: ") + msg + " failed, error " + u_errorName(status));
  54         } else {
  55             errln(UnicodeString("FAIL: ") + msg + " failed, error " + u_errorName(status));
  56         }
  57         return TRUE;
  58     }
  59
  60     return FALSE;
  61 }
  62
  63 uint32_t
  64 NumberFormatRoundTripTest::randLong()
  65 {
  66     // Assume 8-bit (or larger) rand values.  Also assume
  67     // that the system rand() function is very poor, which it always is.
  68     uint32_t d;
  69     uint32_t i;
  70     char* poke = (char*)&d;
  71     for (i=0; i < sizeof(uint32_t); ++i)
  72     {
  73         poke[i] = (char)(rand() & 0xFF);
  74     }
  75     return d;
  76 }
  77
  78 /**
  79  * Return a random value from -range..+range.
  80  */
  81 double
  82 NumberFormatRoundTripTest::randomDouble(double range)
  83 {
  84     double a = randFraction();
  85     return (2.0 * range * a) - range;
  86 }
  87
  88 void
  89 NumberFormatRoundTripTest::start()
  90 {
  91 // test(NumberFormat.getInstance(new Locale("sr", "", "")));
  92
  93     UErrorCode status = U_ZERO_ERROR;
  94
  95     NumberFormat *fmt = NULL;
  96
  97     logln("Default Locale");
  98
  99     fmt = NumberFormat::createInstance(status);
 100     if (!failure(status, "NumberFormat::createInstance", TRUE)){
 101         test(fmt);
 102     }
 103     delete fmt;
 104
 105     fmt = NumberFormat::createCurrencyInstance(status);
 106     if (!failure(status, "NumberFormat::createCurrencyInstance", TRUE)){
 107         test(fmt);
 108     }
 109     delete fmt;
 110
 111     fmt = NumberFormat::createPercentInstance(status);
 112     if (!failure(status, "NumberFormat::createPercentInstance", TRUE)){
 113         test(fmt);
 114     }
 115     delete fmt;
 116
 117
 118     int32_t locCount = 0;
 119     const Locale *loc = NumberFormat::getAvailableLocales(locCount);
 120     if(quick) {
 121         if(locCount > 5)
 122             locCount = 5;
 123         logln("Quick mode: only testing first 5 Locales");
 124     }
 125     for(int i = 0; i < locCount; ++i) {
 126         UnicodeString name;
 127         logln(loc[i].getDisplayName(name));
 128
 129         fmt = NumberFormat::createInstance(loc[i], status);
 130         failure(status, "NumberFormat::createInstance");
 131         test(fmt);
 132         delete fmt;
 133
 134         fmt = NumberFormat::createCurrencyInstance(loc[i], status);
 135         failure(status, "NumberFormat::createCurrencyInstance");
 136         test(fmt);
 137         delete fmt;
 138
 139         fmt = NumberFormat::createPercentInstance(loc[i], status);
 140         failure(status, "NumberFormat::createPercentInstance");
 141         test(fmt);
 142         delete fmt;
 143     }
 144
 145     logln(UnicodeString("Numeric error ") + min_numeric_error + " to " + max_numeric_error);
 146 }
 147
 148
 149 void
 150 NumberFormatRoundTripTest::test(NumberFormat *fmt)
 151 {
 152 #if IEEE_754 && U_PLATFORM != U_PF_OS400
 153     test(fmt, uprv_getNaN());
 154     test(fmt, uprv_getInfinity());
 155     test(fmt, -uprv_getInfinity());
 156 #endif
 157
 158     test(fmt, (int32_t)500);
 159     test(fmt, (int32_t)0);
 160     test(fmt, (int32_t)-0);
 161     test(fmt, 0.0);
 162     double negZero = 0.0; negZero /= -1.0;
 163     test(fmt, negZero);
 164     test(fmt, 9223372036854775808.0);
 165     test(fmt, -9223372036854775809.0);
 166
 167     for(int i = 0; i < 10; ++i) {
 168         test(fmt, randomDouble(1));
 169         test(fmt, randomDouble(10000));
 170         test(fmt, uprv_floor((randomDouble(10000))));
 171         test(fmt, randomDouble(1e50));
 172         test(fmt, randomDouble(1e-50));
 173 #if !(U_PF_OS390 <= U_PLATFORM && U_PLATFORM <= U_PF_OS400)
 174         test(fmt, randomDouble(1e100));
 175 #elif IEEE_754
 176         test(fmt, randomDouble(1e75));
 177 #endif /* OS390 and OS400 */
 178         // {sfb} When formatting with a percent instance, numbers very close to
 179         // DBL_MAX will fail the round trip.  This is because:
 180         // 1) Format the double into a string --> INF% (since 100 * double > DBL_MAX)
 181         // 2) Parse the string into a double --> INF
 182         // 3) Re-format the double --> INF%
 183         // 4) The strings are equal, so that works.
 184         // 5) Calculate the proportional error --> INF, so the test will fail
 185         // I'll get around this by dividing by the multiplier to make sure
 186         // the double will stay in range.
 187         //if(fmt->getMultipler() == 1)
 188         DecimalFormat *df = dynamic_cast<DecimalFormat *>(fmt);
 189         if(df != NULL)
 190         {
 191 #if !(U_PF_OS390 <= U_PLATFORM && U_PLATFORM <= U_PF_OS400)
 192             /* DBL_MAX/2 is here because randomDouble does a *2 in the math */
 193             test(fmt, randomDouble(DBL_MAX/2.0) / df->getMultiplier());
 194 #elif IEEE_754
 195             test(fmt, randomDouble(1e75) / df->getMultiplier());
 196 #else
 197             test(fmt, randomDouble(1e65) / df->getMultiplier());
 198 #endif
 199         }
 200
 201 #if (defined(_MSC_VER) && _MSC_VER < 1400) || defined(__alpha__) || defined(U_OSF)
 202         // These machines and compilers don't fully support denormalized doubles,
 203         test(fmt, randomDouble(1e-292));
 204         test(fmt, randomDouble(1e-100));
 205 #elif U_PF_OS390 <= U_PLATFORM && U_PLATFORM <= U_PF_OS400
 206         // i5/OS (OS/400) throws exceptions on denormalized numbers
 207 #   if IEEE_754
 208         test(fmt, randomDouble(1e-78));
 209         test(fmt, randomDouble(1e-78));
 210         // #else we're using something like the old z/OS floating point.
 211 #   endif
 212 #else
 213         // This is a normal machine that can support IEEE754 denormalized doubles without throwing an error.
 214         test(fmt, randomDouble(DBL_MIN)); /* Usually 2.2250738585072014e-308 */
 215         test(fmt, randomDouble(1e-100));
 216 #endif
 217     }
 218 }
 219
 220 void
 221 NumberFormatRoundTripTest::test(NumberFormat *fmt, double value)
 222 {
 223     test(fmt, Formattable(value));
 224 }
 225
 226 void
 227 NumberFormatRoundTripTest::test(NumberFormat *fmt, int32_t value)
 228 {
 229     test(fmt, Formattable(value));
 230 }
 231
 232 void
 233 NumberFormatRoundTripTest::test(NumberFormat *fmt, const Formattable& value)
 234 {
 235     fmt->setMaximumFractionDigits(999);
 236     DecimalFormat *df = dynamic_cast<DecimalFormat *>(fmt);
 237     if(df != NULL) {
 238         df->setRoundingIncrement(0.0);
 239     }
 240     UErrorCode status = U_ZERO_ERROR;
 241     UnicodeString s, s2, temp;
 242     if(isDouble(value))
 243         s = fmt->format(value.getDouble(), s);
 244     else
 245         s = fmt->format(value.getLong(), s);
 246
 247     Formattable n;
 248     UBool show = verbose;
 249     if(DEBUG_VAR)
 250         logln(/*value.getString(temp) +*/ " F> " + escape(s));
 251
 252     fmt->parse(s, n, status);
 253     failure(status, "fmt->parse");
 254     if(DEBUG_VAR)
 255         logln(escape(s) + " P> " /*+ n.getString(temp)*/);
 256
 257     if(isDouble(n))
 258         s2 = fmt->format(n.getDouble(), s2);
 259     else
 260         s2 = fmt->format(n.getLong(), s2);
 261
 262     if(DEBUG_VAR)
 263         logln(/*n.getString(temp) +*/ " F> " + escape(s2));
 264
 265     if(STRING_COMPARE) {
 266         if (s != s2) {
 267             errln("*** STRING ERROR \"" + escape(s) + "\" != \"" + escape(s2) + "\"");
 268             show = TRUE;
 269         }
 270     }
 271
 272     if(EXACT_NUMERIC_COMPARE) {
 273         if(value != n) {
 274             errln("*** NUMERIC ERROR");
 275             show = TRUE;
 276         }
 277     }
 278     else {
 279         // Compute proportional error
 280         double error = proportionalError(value, n);
 281
 282         if(error > MAX_ERROR) {
 283             errln(UnicodeString("*** NUMERIC ERROR ") + error);
 284             show = TRUE;
 285         }
 286
 287         if (error > max_numeric_error)
 288             max_numeric_error = error;
 289         if (error < min_numeric_error)
 290             min_numeric_error = error;
 291     }
 292
 293     if (show) {
 294         errln(/*value.getString(temp) +*/ typeOf(value, temp) + " F> " +
 295             escape(s) + " P> " + (n.getType() == Formattable::kDouble ? n.getDouble() : (double)n.getLong())
 296             /*n.getString(temp) */ + typeOf(n, temp) + " F> " +
 297             escape(s2));
 298     }
 299 }
 300
 301 double
 302 NumberFormatRoundTripTest::proportionalError(const Formattable& a, const Formattable& b)
 303 {
 304     double aa,bb;
 305
 306     if(isDouble(a))
 307         aa = a.getDouble();
 308     else
 309         aa = a.getLong();
 310
 311     if(isDouble(b))
 312         bb = b.getDouble();
 313     else
 314         bb = b.getLong();
 315
 316     double error = aa - bb;
 317     if(aa != 0 && bb != 0)
 318         error /= aa;
 319
 320     return uprv_fabs(error);
 321 }
 322
 323 UnicodeString&
 324 NumberFormatRoundTripTest::typeOf(const Formattable& n, UnicodeString& result)
 325 {
 326     if(n.getType() == Formattable::kLong) {
 327         result = UnicodeString(" Long");
 328     }
 329     else if(n.getType() == Formattable::kDouble) {
 330         result = UnicodeString(" Double");
 331     }
 332     else if(n.getType() == Formattable::kString) {
 333         result = UnicodeString(" UnicodeString");
 334         UnicodeString temp;
 335     }
 336
 337     return result;
 338 }
 339
 340
 341 UnicodeString&
 342 NumberFormatRoundTripTest::escape(UnicodeString& s)
 343 {
 344     UnicodeString copy(s);
 345     s.remove();
 346     for(int i = 0; i < copy.length(); ++i) {
 347         UChar32 c = copy.char32At(i);
 348         if (c >= 0x10000) {
 349             ++i;
 350         }
 351         if(c < 0x00FF) {
 352             s += c;
 353         } else {
 354             s += "+U";
 355             char temp[16];
 356             sprintf(temp, "%4X", c);        // might not work
 357             s += temp;
 358         }
 359     }
 360     return s;
 361 }
 362
 363 #endif /* #if !UCONFIG_NO_FORMATTING */