icuSources/test/intltest/tsputil.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) 1997-2011, International Business Machines Corporation and
   6  * others. All Rights Reserved.
   7  ********************************************************************/
   8
   9 #include "tsputil.h"
  10
  11 #include <float.h> // DBL_MAX, DBL_MIN
  12 #include "putilimp.h"
  13
  14 #define CASE(id,test) case id: name = #test; if (exec) { logln(#test "---"); logln((UnicodeString)""); test(); } break;
  15
  16 void
  17 PUtilTest::runIndexedTest( int32_t index, UBool exec, const char* &name, char* /*par*/ )
  18 {
  19     //if (exec) logln("TestSuite PUtilTest: ");
  20     switch (index) {
  21         CASE(0, testMaxMin)
  22         CASE(1, testNaN)
  23         CASE(2, testPositiveInfinity)
  24         CASE(3, testNegativeInfinity)
  25         CASE(4, testZero)
  26 //        CASE(, testIEEEremainder)
  27
  28         default: name = ""; break; //needed to end loop
  29     }
  30 }
  31
  32 #if 0
  33 void
  34 PUtilTest::testIEEEremainder()
  35 {
  36     double    pinf  = uprv_getInfinity();
  37     double    ninf  = -uprv_getInfinity();
  38     double    nan   = uprv_getNaN();
  39     double    pzero = 0.0;
  40     double    nzero = 0.0;
  41
  42     nzero *= -1;
  43
  44     // simple remainder checks
  45     remainderTest(7.0, 2.5, -0.5);
  46     remainderTest(7.0, -2.5, -0.5);
  47 #if U_PLATFORM != U_PF_OS390
  48     // ### TODO:
  49     // The following tests fails on S/390 with IEEE support in release builds;
  50     // debug builds work.
  51     // The functioning of ChoiceFormat is not affected by this bug.
  52     remainderTest(-7.0, 2.5, 0.5);
  53     remainderTest(-7.0, -2.5, 0.5);
  54 #endif
  55     remainderTest(5.0, 3.0, -1.0);
  56
  57     // this should work
  58     //remainderTest(43.7, 2.5, 1.25);
  59
  60     /*
  61
  62     // infinity and real
  63     remainderTest(pinf, 1.0, 1.25);
  64     remainderTest(1.0, pinf, 1.0);
  65     remainderTest(ninf, 1.0, 1.25);
  66     remainderTest(1.0, ninf, 1.0);
  67
  68     // test infinity and nan
  69     remainderTest(ninf, pinf, 1.25);
  70     remainderTest(ninf, nan, 1.25);
  71     remainderTest(pinf, nan, 1.25);
  72
  73     // test infinity and zero
  74     remainderTest(pinf, pzero, 1.25);
  75     remainderTest(pinf, nzero, 1.25);
  76     remainderTest(ninf, pzero, 1.25);
  77     remainderTest(ninf, nzero, 1.25);
  78 */
  79 }
  80
  81 void
  82 PUtilTest::remainderTest(double x, double y, double exp)
  83 {
  84     double result = uprv_IEEEremainder(x,y);
  85
  86     if(        uprv_isNaN(result) &&
  87         ! ( uprv_isNaN(x) || uprv_isNaN(y))) {
  88         errln(UnicodeString("FAIL: got NaN as result without NaN as argument"));
  89         errln(UnicodeString("      IEEEremainder(") + x + ", " + y + ") is " + result + ", expected " + exp);
  90     }
  91     else if(result != exp)
  92         errln(UnicodeString("FAIL: IEEEremainder(") + x + ", " + y + ") is " + result + ", expected " + exp);
  93     else
  94         logln(UnicodeString("OK: IEEEremainder(") + x + ", " + y + ") is " + result);
  95
  96 }
  97 #endif
  98
  99 void
 100 PUtilTest::testMaxMin()
 101 {
 102     double    pinf        = uprv_getInfinity();
 103     double    ninf        = -uprv_getInfinity();
 104     double    nan        = uprv_getNaN();
 105     double    pzero        = 0.0;
 106     double    nzero        = 0.0;
 107
 108     nzero *= -1;
 109
 110     // +Inf with -Inf
 111     maxMinTest(pinf, ninf, pinf, TRUE);
 112     maxMinTest(pinf, ninf, ninf, FALSE);
 113
 114     // +Inf with +0 and -0
 115     maxMinTest(pinf, pzero, pinf, TRUE);
 116     maxMinTest(pinf, pzero, pzero, FALSE);
 117     maxMinTest(pinf, nzero, pinf, TRUE);
 118     maxMinTest(pinf, nzero, nzero, FALSE);
 119
 120     // -Inf with +0 and -0
 121     maxMinTest(ninf, pzero, pzero, TRUE);
 122     maxMinTest(ninf, pzero, ninf, FALSE);
 123     maxMinTest(ninf, nzero, nzero, TRUE);
 124     maxMinTest(ninf, nzero, ninf, FALSE);
 125
 126     // NaN with +Inf and -Inf
 127     maxMinTest(pinf, nan, nan, TRUE);
 128     maxMinTest(pinf, nan, nan, FALSE);
 129     maxMinTest(ninf, nan, nan, TRUE);
 130     maxMinTest(ninf, nan, nan, FALSE);
 131
 132     // NaN with NaN
 133     maxMinTest(nan, nan, nan, TRUE);
 134     maxMinTest(nan, nan, nan, FALSE);
 135
 136     // NaN with +0 and -0
 137     maxMinTest(nan, pzero, nan, TRUE);
 138     maxMinTest(nan, pzero, nan, FALSE);
 139     maxMinTest(nan, nzero, nan, TRUE);
 140     maxMinTest(nan, nzero, nan, FALSE);
 141
 142     // +Inf with DBL_MAX and DBL_MIN
 143     maxMinTest(pinf, DBL_MAX, pinf, TRUE);
 144     maxMinTest(pinf, -DBL_MAX, pinf, TRUE);
 145     maxMinTest(pinf, DBL_MIN, pinf, TRUE);
 146     maxMinTest(pinf, -DBL_MIN, pinf, TRUE);
 147     maxMinTest(pinf, DBL_MIN, DBL_MIN, FALSE);
 148     maxMinTest(pinf, -DBL_MIN, -DBL_MIN, FALSE);
 149     maxMinTest(pinf, DBL_MAX, DBL_MAX, FALSE);
 150     maxMinTest(pinf, -DBL_MAX, -DBL_MAX, FALSE);
 151
 152     // -Inf with DBL_MAX and DBL_MIN
 153     maxMinTest(ninf, DBL_MAX, DBL_MAX, TRUE);
 154     maxMinTest(ninf, -DBL_MAX, -DBL_MAX, TRUE);
 155     maxMinTest(ninf, DBL_MIN, DBL_MIN, TRUE);
 156     maxMinTest(ninf, -DBL_MIN, -DBL_MIN, TRUE);
 157     maxMinTest(ninf, DBL_MIN, ninf, FALSE);
 158     maxMinTest(ninf, -DBL_MIN, ninf, FALSE);
 159     maxMinTest(ninf, DBL_MAX, ninf, FALSE);
 160     maxMinTest(ninf, -DBL_MAX, ninf, FALSE);
 161
 162     // +0 with DBL_MAX and DBL_MIN
 163     maxMinTest(pzero, DBL_MAX, DBL_MAX, TRUE);
 164     maxMinTest(pzero, -DBL_MAX, pzero, TRUE);
 165     maxMinTest(pzero, DBL_MIN, DBL_MIN, TRUE);
 166     maxMinTest(pzero, -DBL_MIN, pzero, TRUE);
 167     maxMinTest(pzero, DBL_MIN, pzero, FALSE);
 168     maxMinTest(pzero, -DBL_MIN, -DBL_MIN, FALSE);
 169     maxMinTest(pzero, DBL_MAX, pzero, FALSE);
 170     maxMinTest(pzero, -DBL_MAX, -DBL_MAX, FALSE);
 171
 172     // -0 with DBL_MAX and DBL_MIN
 173     maxMinTest(nzero, DBL_MAX, DBL_MAX, TRUE);
 174     maxMinTest(nzero, -DBL_MAX, nzero, TRUE);
 175     maxMinTest(nzero, DBL_MIN, DBL_MIN, TRUE);
 176     maxMinTest(nzero, -DBL_MIN, nzero, TRUE);
 177     maxMinTest(nzero, DBL_MIN, nzero, FALSE);
 178     maxMinTest(nzero, -DBL_MIN, -DBL_MIN, FALSE);
 179     maxMinTest(nzero, DBL_MAX, nzero, FALSE);
 180     maxMinTest(nzero, -DBL_MAX, -DBL_MAX, FALSE);
 181 }
 182
 183 void
 184 PUtilTest::maxMinTest(double a, double b, double exp, UBool max)
 185 {
 186     double result = 0.0;
 187
 188     if(max)
 189         result = uprv_fmax(a, b);
 190     else
 191         result = uprv_fmin(a, b);
 192
 193     UBool nanResultOK = (uprv_isNaN(a) || uprv_isNaN(b));
 194
 195     if(uprv_isNaN(result) && ! nanResultOK) {
 196         errln(UnicodeString("FAIL: got NaN as result without NaN as argument"));
 197         if(max)
 198             errln(UnicodeString("      max(") + a + ", " + b + ") is " + result + ", expected " + exp);
 199         else
 200             errln(UnicodeString("      min(") + a + ", " + b + ") is " + result + ", expected " + exp);
 201     }
 202     else if(result != exp && ! (uprv_isNaN(result) || uprv_isNaN(exp)))
 203         if(max)
 204             errln(UnicodeString("FAIL: max(") + a + ", " + b + ") is " + result + ", expected " + exp);
 205         else
 206             errln(UnicodeString("FAIL: min(") + a + ", " + b + ") is " + result + ", expected " + exp);
 207     else {
 208         if (verbose) {
 209             if(max)
 210                 logln(UnicodeString("OK: max(") + a + ", " + b + ") is " + result);
 211             else
 212                 logln(UnicodeString("OK: min(") + a + ", " + b + ") is " + result);
 213         }
 214     }
 215 }
 216 //==============================
 217
 218 // NaN is weird- comparisons with NaN _always_ return false, with the
 219 // exception of !=, which _always_ returns true
 220 void
 221 PUtilTest::testNaN(void)
 222 {
 223     logln("NaN tests may show that the expected NaN!=NaN etc. is not true on some");
 224     logln("platforms; however, ICU does not rely on them because it defines");
 225     logln("and uses uprv_isNaN(). Therefore, most failing NaN tests only report warnings.");
 226
 227     PUtilTest::testIsNaN();
 228     PUtilTest::NaNGT();
 229     PUtilTest::NaNLT();
 230     PUtilTest::NaNGTE();
 231     PUtilTest::NaNLTE();
 232     PUtilTest::NaNE();
 233     PUtilTest::NaNNE();
 234
 235     logln("End of NaN tests.");
 236 }
 237
 238 //==============================
 239
 240 void
 241 PUtilTest::testPositiveInfinity(void)
 242 {
 243     double  pinf    = uprv_getInfinity();
 244     double  ninf    = -uprv_getInfinity();
 245     double  ten     = 10.0;
 246
 247     if(uprv_isInfinite(pinf) != TRUE) {
 248         errln("FAIL: isInfinite(+Infinity) returned FALSE, should be TRUE.");
 249     }
 250
 251     if(uprv_isPositiveInfinity(pinf) != TRUE) {
 252         errln("FAIL: isPositiveInfinity(+Infinity) returned FALSE, should be TRUE.");
 253     }
 254
 255     if(uprv_isNegativeInfinity(pinf) != FALSE) {
 256         errln("FAIL: isNegativeInfinity(+Infinity) returned TRUE, should be FALSE.");
 257     }
 258
 259     if((pinf > DBL_MAX) != TRUE) {
 260         errln("FAIL: +Infinity > DBL_MAX returned FALSE, should be TRUE.");
 261     }
 262
 263     if((pinf > DBL_MIN) != TRUE) {
 264         errln("FAIL: +Infinity > DBL_MIN returned FALSE, should be TRUE.");
 265     }
 266
 267     if((pinf > ninf) != TRUE) {
 268         errln("FAIL: +Infinity > -Infinity returned FALSE, should be TRUE.");
 269     }
 270
 271     if((pinf > ten) != TRUE) {
 272         errln("FAIL: +Infinity > 10.0 returned FALSE, should be TRUE.");
 273     }
 274 }
 275
 276 //==============================
 277
 278 void
 279 PUtilTest::testNegativeInfinity(void)
 280 {
 281     double  pinf    = uprv_getInfinity();
 282     double  ninf    = -uprv_getInfinity();
 283     double  ten     = 10.0;
 284
 285     if(uprv_isInfinite(ninf) != TRUE) {
 286         errln("FAIL: isInfinite(-Infinity) returned FALSE, should be TRUE.");
 287     }
 288
 289     if(uprv_isNegativeInfinity(ninf) != TRUE) {
 290         errln("FAIL: isNegativeInfinity(-Infinity) returned FALSE, should be TRUE.");
 291     }
 292
 293     if(uprv_isPositiveInfinity(ninf) != FALSE) {
 294         errln("FAIL: isPositiveInfinity(-Infinity) returned TRUE, should be FALSE.");
 295     }
 296
 297     if((ninf < DBL_MAX) != TRUE) {
 298         errln("FAIL: -Infinity < DBL_MAX returned FALSE, should be TRUE.");
 299     }
 300
 301     if((ninf < DBL_MIN) != TRUE) {
 302         errln("FAIL: -Infinity < DBL_MIN returned FALSE, should be TRUE.");
 303     }
 304
 305     if((ninf < pinf) != TRUE) {
 306         errln("FAIL: -Infinity < +Infinity returned FALSE, should be TRUE.");
 307     }
 308
 309     if((ninf < ten) != TRUE) {
 310         errln("FAIL: -Infinity < 10.0 returned FALSE, should be TRUE.");
 311     }
 312 }
 313
 314 //==============================
 315
 316 // notes about zero:
 317 // -0.0 == 0.0 == TRUE
 318 // -0.0 <  0.0 == FALSE
 319 // generating -0.0 must be done at runtime.  compiler apparently ignores sign?
 320 void
 321 PUtilTest::testZero(void)
 322 {
 323     // volatile is used to fake out the compiler optimizer.  We really want to divide by 0.
 324     volatile double pzero   = 0.0;
 325     volatile double nzero   = 0.0;
 326
 327     nzero *= -1;
 328
 329     if((pzero == nzero) != TRUE) {
 330         errln("FAIL: 0.0 == -0.0 returned FALSE, should be TRUE.");
 331     }
 332
 333     if((pzero > nzero) != FALSE) {
 334         errln("FAIL: 0.0 > -0.0 returned TRUE, should be FALSE.");
 335     }
 336
 337     if((pzero >= nzero) != TRUE) {
 338         errln("FAIL: 0.0 >= -0.0 returned FALSE, should be TRUE.");
 339     }
 340
 341     if((pzero < nzero) != FALSE) {
 342         errln("FAIL: 0.0 < -0.0 returned TRUE, should be FALSE.");
 343     }
 344
 345     if((pzero <= nzero) != TRUE) {
 346         errln("FAIL: 0.0 <= -0.0 returned FALSE, should be TRUE.");
 347     }
 348 #if U_PLATFORM != U_PF_OS400 /* OS/400 will generate divide by zero exception MCH1214 */
 349     if(uprv_isInfinite(1/pzero) != TRUE) {
 350         errln("FAIL: isInfinite(1/0.0) returned FALSE, should be TRUE.");
 351     }
 352
 353     if(uprv_isInfinite(1/nzero) != TRUE) {
 354         errln("FAIL: isInfinite(1/-0.0) returned FALSE, should be TRUE.");
 355     }
 356
 357     if(uprv_isPositiveInfinity(1/pzero) != TRUE) {
 358         errln("FAIL: isPositiveInfinity(1/0.0) returned FALSE, should be TRUE.");
 359     }
 360
 361     if(uprv_isNegativeInfinity(1/nzero) != TRUE) {
 362         errln("FAIL: isNegativeInfinity(1/-0.0) returned FALSE, should be TRUE.");
 363     }
 364 #endif
 365 }
 366
 367 //==============================
 368
 369 void
 370 PUtilTest::testIsNaN(void)
 371 {
 372     double  pinf    = uprv_getInfinity();
 373     double  ninf    = -uprv_getInfinity();
 374     double  nan     = uprv_getNaN();
 375     double  ten     = 10.0;
 376
 377     if(uprv_isNaN(nan) == FALSE) {
 378         errln("FAIL: isNaN() returned FALSE for NaN.");
 379     }
 380
 381     if(uprv_isNaN(pinf) == TRUE) {
 382         errln("FAIL: isNaN() returned TRUE for +Infinity.");
 383     }
 384
 385     if(uprv_isNaN(ninf) == TRUE) {
 386         errln("FAIL: isNaN() returned TRUE for -Infinity.");
 387     }
 388
 389     if(uprv_isNaN(ten) == TRUE) {
 390         errln("FAIL: isNaN() returned TRUE for 10.0.");
 391     }
 392 }
 393
 394 //==============================
 395
 396 void
 397 PUtilTest::NaNGT(void)
 398 {
 399     double  pinf    = uprv_getInfinity();
 400     double  ninf    = -uprv_getInfinity();
 401     double  nan     = uprv_getNaN();
 402     double  ten     = 10.0;
 403
 404     if((nan > nan) != FALSE) {
 405         logln("WARNING: NaN > NaN returned TRUE, should be FALSE");
 406     }
 407
 408     if((nan > pinf) != FALSE) {
 409         logln("WARNING: NaN > +Infinity returned TRUE, should be FALSE");
 410     }
 411
 412     if((nan > ninf) != FALSE) {
 413         logln("WARNING: NaN > -Infinity returned TRUE, should be FALSE");
 414     }
 415
 416     if((nan > ten) != FALSE) {
 417         logln("WARNING: NaN > 10.0 returned TRUE, should be FALSE");
 418     }
 419 }
 420
 421 //==============================
 422
 423 void
 424 PUtilTest::NaNLT(void)
 425 {
 426     double  pinf    = uprv_getInfinity();
 427     double  ninf    = -uprv_getInfinity();
 428     double  nan     = uprv_getNaN();
 429     double  ten     = 10.0;
 430
 431     if((nan < nan) != FALSE) {
 432         logln("WARNING: NaN < NaN returned TRUE, should be FALSE");
 433     }
 434
 435     if((nan < pinf) != FALSE) {
 436         logln("WARNING: NaN < +Infinity returned TRUE, should be FALSE");
 437     }
 438
 439     if((nan < ninf) != FALSE) {
 440         logln("WARNING: NaN < -Infinity returned TRUE, should be FALSE");
 441     }
 442
 443     if((nan < ten) != FALSE) {
 444         logln("WARNING: NaN < 10.0 returned TRUE, should be FALSE");
 445     }
 446 }
 447
 448 //==============================
 449
 450 void
 451 PUtilTest::NaNGTE(void)
 452 {
 453     double  pinf    = uprv_getInfinity();
 454     double  ninf    = -uprv_getInfinity();
 455     double  nan     = uprv_getNaN();
 456     double  ten     = 10.0;
 457
 458     if((nan >= nan) != FALSE) {
 459         logln("WARNING: NaN >= NaN returned TRUE, should be FALSE");
 460     }
 461
 462     if((nan >= pinf) != FALSE) {
 463         logln("WARNING: NaN >= +Infinity returned TRUE, should be FALSE");
 464     }
 465
 466     if((nan >= ninf) != FALSE) {
 467         logln("WARNING: NaN >= -Infinity returned TRUE, should be FALSE");
 468     }
 469
 470     if((nan >= ten) != FALSE) {
 471         logln("WARNING: NaN >= 10.0 returned TRUE, should be FALSE");
 472     }
 473 }
 474
 475 //==============================
 476
 477 void
 478 PUtilTest::NaNLTE(void)
 479 {
 480     double  pinf    = uprv_getInfinity();
 481     double  ninf    = -uprv_getInfinity();
 482     double  nan     = uprv_getNaN();
 483     double  ten     = 10.0;
 484
 485     if((nan <= nan) != FALSE) {
 486         logln("WARNING: NaN <= NaN returned TRUE, should be FALSE");
 487     }
 488
 489     if((nan <= pinf) != FALSE) {
 490         logln("WARNING: NaN <= +Infinity returned TRUE, should be FALSE");
 491     }
 492
 493     if((nan <= ninf) != FALSE) {
 494         logln("WARNING: NaN <= -Infinity returned TRUE, should be FALSE");
 495     }
 496
 497     if((nan <= ten) != FALSE) {
 498         logln("WARNING: NaN <= 10.0 returned TRUE, should be FALSE");
 499     }
 500 }
 501
 502 //==============================
 503
 504 void
 505 PUtilTest::NaNE(void)
 506 {
 507     double  pinf    = uprv_getInfinity();
 508     double  ninf    = -uprv_getInfinity();
 509     double  nan     = uprv_getNaN();
 510     double  ten     = 10.0;
 511
 512     if((nan == nan) != FALSE) {
 513         logln("WARNING: NaN == NaN returned TRUE, should be FALSE");
 514     }
 515
 516     if((nan == pinf) != FALSE) {
 517         logln("WARNING: NaN == +Infinity returned TRUE, should be FALSE");
 518     }
 519
 520     if((nan == ninf) != FALSE) {
 521         logln("WARNING: NaN == -Infinity returned TRUE, should be FALSE");
 522     }
 523
 524     if((nan == ten) != FALSE) {
 525         logln("WARNING: NaN == 10.0 returned TRUE, should be FALSE");
 526     }
 527 }
 528
 529 //==============================
 530
 531 void
 532 PUtilTest::NaNNE(void)
 533 {
 534     double  pinf    = uprv_getInfinity();
 535     double  ninf    = -uprv_getInfinity();
 536     double  nan     = uprv_getNaN();
 537     double  ten     = 10.0;
 538
 539     if((nan != nan) != TRUE) {
 540         logln("WARNING: NaN != NaN returned FALSE, should be TRUE");
 541     }
 542
 543     if((nan != pinf) != TRUE) {
 544         logln("WARNING: NaN != +Infinity returned FALSE, should be TRUE");
 545     }
 546
 547     if((nan != ninf) != TRUE) {
 548         logln("WARNING: NaN != -Infinity returned FALSE, should be TRUE");
 549     }
 550
 551     if((nan != ten) != TRUE) {
 552         logln("WARNING: NaN != 10.0 returned FALSE, should be TRUE");
 553     }
 554 }