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
runIndexedTest(int32_t index,UBool exec,const char * & name,char *)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
testMaxMin()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
maxMinTest(double a,double b,double exp,UBool max)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
testNaN(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
testPositiveInfinity(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
testNegativeInfinity(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
testZero(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
testIsNaN(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
NaNGT(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
NaNLT(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
NaNGTE(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
NaNLTE(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
NaNE(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
NaNNE(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 }
555