// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/********************************************************************
* COPYRIGHT:
* Copyright (c) 1997-2011, International Business Machines Corporation and
* others. All Rights Reserved.
********************************************************************/
#include "tsputil.h"
#include <float.h> // DBL_MAX, DBL_MIN
#include "putilimp.h"
#define CASE(id,test) case id: name = #test; if (exec) { logln(#test "---"); logln((UnicodeString)""); test(); } break;
void
PUtilTest::runIndexedTest( int32_t index, UBool exec, const char* &name, char* /*par*/ )
{
//if (exec) logln("TestSuite PUtilTest: ");
switch (index) {
CASE(0, testMaxMin)
CASE(1, testNaN)
CASE(2, testPositiveInfinity)
CASE(3, testNegativeInfinity)
CASE(4, testZero)
// CASE(, testIEEEremainder)
default: name = ""; break; //needed to end loop
}
}
#if 0
void
PUtilTest::testIEEEremainder()
{
double pinf = uprv_getInfinity();
double ninf = -uprv_getInfinity();
double nan = uprv_getNaN();
double pzero = 0.0;
double nzero = 0.0;
nzero *= -1;
// simple remainder checks
remainderTest(7.0, 2.5, -0.5);
remainderTest(7.0, -2.5, -0.5);
#if U_PLATFORM != U_PF_OS390
// ### TODO:
// The following tests fails on S/390 with IEEE support in release builds;
// debug builds work.
// The functioning of ChoiceFormat is not affected by this bug.
remainderTest(-7.0, 2.5, 0.5);
remainderTest(-7.0, -2.5, 0.5);
#endif
remainderTest(5.0, 3.0, -1.0);
// this should work
//remainderTest(43.7, 2.5, 1.25);
/*
// infinity and real
remainderTest(pinf, 1.0, 1.25);
remainderTest(1.0, pinf, 1.0);
remainderTest(ninf, 1.0, 1.25);
remainderTest(1.0, ninf, 1.0);
// test infinity and nan
remainderTest(ninf, pinf, 1.25);
remainderTest(ninf, nan, 1.25);
remainderTest(pinf, nan, 1.25);
// test infinity and zero
remainderTest(pinf, pzero, 1.25);
remainderTest(pinf, nzero, 1.25);
remainderTest(ninf, pzero, 1.25);
remainderTest(ninf, nzero, 1.25);
*/
}
void
PUtilTest::remainderTest(double x, double y, double exp)
{
double result = uprv_IEEEremainder(x,y);
if( uprv_isNaN(result) &&
! ( uprv_isNaN(x) || uprv_isNaN(y))) {
errln(UnicodeString("FAIL: got NaN as result without NaN as argument"));
errln(UnicodeString(" IEEEremainder(") + x + ", " + y + ") is " + result + ", expected " + exp);
}
else if(result != exp)
errln(UnicodeString("FAIL: IEEEremainder(") + x + ", " + y + ") is " + result + ", expected " + exp);
else
logln(UnicodeString("OK: IEEEremainder(") + x + ", " + y + ") is " + result);
}
#endif
void
PUtilTest::testMaxMin()
{
double pinf = uprv_getInfinity();
double ninf = -uprv_getInfinity();
double nan = uprv_getNaN();
double pzero = 0.0;
double nzero = 0.0;
nzero *= -1;
// +Inf with -Inf
maxMinTest(pinf, ninf, pinf, TRUE);
maxMinTest(pinf, ninf, ninf, FALSE);
// +Inf with +0 and -0
maxMinTest(pinf, pzero, pinf, TRUE);
maxMinTest(pinf, pzero, pzero, FALSE);
maxMinTest(pinf, nzero, pinf, TRUE);
maxMinTest(pinf, nzero, nzero, FALSE);
// -Inf with +0 and -0
maxMinTest(ninf, pzero, pzero, TRUE);
maxMinTest(ninf, pzero, ninf, FALSE);
maxMinTest(ninf, nzero, nzero, TRUE);
maxMinTest(ninf, nzero, ninf, FALSE);
// NaN with +Inf and -Inf
maxMinTest(pinf, nan, nan, TRUE);
maxMinTest(pinf, nan, nan, FALSE);
maxMinTest(ninf, nan, nan, TRUE);
maxMinTest(ninf, nan, nan, FALSE);
// NaN with NaN
maxMinTest(nan, nan, nan, TRUE);
maxMinTest(nan, nan, nan, FALSE);
// NaN with +0 and -0
maxMinTest(nan, pzero, nan, TRUE);
maxMinTest(nan, pzero, nan, FALSE);
maxMinTest(nan, nzero, nan, TRUE);
maxMinTest(nan, nzero, nan, FALSE);
// +Inf with DBL_MAX and DBL_MIN
maxMinTest(pinf, DBL_MAX, pinf, TRUE);
maxMinTest(pinf, -DBL_MAX, pinf, TRUE);
maxMinTest(pinf, DBL_MIN, pinf, TRUE);
maxMinTest(pinf, -DBL_MIN, pinf, TRUE);
maxMinTest(pinf, DBL_MIN, DBL_MIN, FALSE);
maxMinTest(pinf, -DBL_MIN, -DBL_MIN, FALSE);
maxMinTest(pinf, DBL_MAX, DBL_MAX, FALSE);
maxMinTest(pinf, -DBL_MAX, -DBL_MAX, FALSE);
// -Inf with DBL_MAX and DBL_MIN
maxMinTest(ninf, DBL_MAX, DBL_MAX, TRUE);
maxMinTest(ninf, -DBL_MAX, -DBL_MAX, TRUE);
maxMinTest(ninf, DBL_MIN, DBL_MIN, TRUE);
maxMinTest(ninf, -DBL_MIN, -DBL_MIN, TRUE);
maxMinTest(ninf, DBL_MIN, ninf, FALSE);
maxMinTest(ninf, -DBL_MIN, ninf, FALSE);
maxMinTest(ninf, DBL_MAX, ninf, FALSE);
maxMinTest(ninf, -DBL_MAX, ninf, FALSE);
// +0 with DBL_MAX and DBL_MIN
maxMinTest(pzero, DBL_MAX, DBL_MAX, TRUE);
maxMinTest(pzero, -DBL_MAX, pzero, TRUE);
maxMinTest(pzero, DBL_MIN, DBL_MIN, TRUE);
maxMinTest(pzero, -DBL_MIN, pzero, TRUE);
maxMinTest(pzero, DBL_MIN, pzero, FALSE);
maxMinTest(pzero, -DBL_MIN, -DBL_MIN, FALSE);
maxMinTest(pzero, DBL_MAX, pzero, FALSE);
maxMinTest(pzero, -DBL_MAX, -DBL_MAX, FALSE);
// -0 with DBL_MAX and DBL_MIN
maxMinTest(nzero, DBL_MAX, DBL_MAX, TRUE);
maxMinTest(nzero, -DBL_MAX, nzero, TRUE);
maxMinTest(nzero, DBL_MIN, DBL_MIN, TRUE);
maxMinTest(nzero, -DBL_MIN, nzero, TRUE);
maxMinTest(nzero, DBL_MIN, nzero, FALSE);
maxMinTest(nzero, -DBL_MIN, -DBL_MIN, FALSE);
maxMinTest(nzero, DBL_MAX, nzero, FALSE);
maxMinTest(nzero, -DBL_MAX, -DBL_MAX, FALSE);
}
void
PUtilTest::maxMinTest(double a, double b, double exp, UBool max)
{
double result = 0.0;
if(max)
result = uprv_fmax(a, b);
else
result = uprv_fmin(a, b);
UBool nanResultOK = (uprv_isNaN(a) || uprv_isNaN(b));
if(uprv_isNaN(result) && ! nanResultOK) {
errln(UnicodeString("FAIL: got NaN as result without NaN as argument"));
if(max)
errln(UnicodeString(" max(") + a + ", " + b + ") is " + result + ", expected " + exp);
else
errln(UnicodeString(" min(") + a + ", " + b + ") is " + result + ", expected " + exp);
}
else if(result != exp && ! (uprv_isNaN(result) || uprv_isNaN(exp)))
if(max)
errln(UnicodeString("FAIL: max(") + a + ", " + b + ") is " + result + ", expected " + exp);
else
errln(UnicodeString("FAIL: min(") + a + ", " + b + ") is " + result + ", expected " + exp);
else {
if (verbose) {
if(max)
logln(UnicodeString("OK: max(") + a + ", " + b + ") is " + result);
else
logln(UnicodeString("OK: min(") + a + ", " + b + ") is " + result);
}
}
}
//==============================
// NaN is weird- comparisons with NaN _always_ return false, with the
// exception of !=, which _always_ returns true
void
PUtilTest::testNaN(void)
{
logln("NaN tests may show that the expected NaN!=NaN etc. is not true on some");
logln("platforms; however, ICU does not rely on them because it defines");
logln("and uses uprv_isNaN(). Therefore, most failing NaN tests only report warnings.");
PUtilTest::testIsNaN();
PUtilTest::NaNGT();
PUtilTest::NaNLT();
PUtilTest::NaNGTE();
PUtilTest::NaNLTE();
PUtilTest::NaNE();
PUtilTest::NaNNE();
logln("End of NaN tests.");
}
//==============================
void
PUtilTest::testPositiveInfinity(void)
{
double pinf = uprv_getInfinity();
double ninf = -uprv_getInfinity();
double ten = 10.0;
if(uprv_isInfinite(pinf) != TRUE) {
errln("FAIL: isInfinite(+Infinity) returned FALSE, should be TRUE.");
}
if(uprv_isPositiveInfinity(pinf) != TRUE) {
errln("FAIL: isPositiveInfinity(+Infinity) returned FALSE, should be TRUE.");
}
if(uprv_isNegativeInfinity(pinf) != FALSE) {
errln("FAIL: isNegativeInfinity(+Infinity) returned TRUE, should be FALSE.");
}
if((pinf > DBL_MAX) != TRUE) {
errln("FAIL: +Infinity > DBL_MAX returned FALSE, should be TRUE.");
}
if((pinf > DBL_MIN) != TRUE) {
errln("FAIL: +Infinity > DBL_MIN returned FALSE, should be TRUE.");
}
if((pinf > ninf) != TRUE) {
errln("FAIL: +Infinity > -Infinity returned FALSE, should be TRUE.");
}
if((pinf > ten) != TRUE) {
errln("FAIL: +Infinity > 10.0 returned FALSE, should be TRUE.");
}
}
//==============================
void
PUtilTest::testNegativeInfinity(void)
{
double pinf = uprv_getInfinity();
double ninf = -uprv_getInfinity();
double ten = 10.0;
if(uprv_isInfinite(ninf) != TRUE) {
errln("FAIL: isInfinite(-Infinity) returned FALSE, should be TRUE.");
}
if(uprv_isNegativeInfinity(ninf) != TRUE) {
errln("FAIL: isNegativeInfinity(-Infinity) returned FALSE, should be TRUE.");
}
if(uprv_isPositiveInfinity(ninf) != FALSE) {
errln("FAIL: isPositiveInfinity(-Infinity) returned TRUE, should be FALSE.");
}
if((ninf < DBL_MAX) != TRUE) {
errln("FAIL: -Infinity < DBL_MAX returned FALSE, should be TRUE.");
}
if((ninf < DBL_MIN) != TRUE) {
errln("FAIL: -Infinity < DBL_MIN returned FALSE, should be TRUE.");
}
if((ninf < pinf) != TRUE) {
errln("FAIL: -Infinity < +Infinity returned FALSE, should be TRUE.");
}
if((ninf < ten) != TRUE) {
errln("FAIL: -Infinity < 10.0 returned FALSE, should be TRUE.");
}
}
//==============================
// notes about zero:
// -0.0 == 0.0 == TRUE
// -0.0 < 0.0 == FALSE
// generating -0.0 must be done at runtime. compiler apparently ignores sign?
void
PUtilTest::testZero(void)
{
// volatile is used to fake out the compiler optimizer. We really want to divide by 0.
volatile double pzero = 0.0;
volatile double nzero = 0.0;
nzero *= -1;
if((pzero == nzero) != TRUE) {
errln("FAIL: 0.0 == -0.0 returned FALSE, should be TRUE.");
}
if((pzero > nzero) != FALSE) {
errln("FAIL: 0.0 > -0.0 returned TRUE, should be FALSE.");
}
if((pzero >= nzero) != TRUE) {
errln("FAIL: 0.0 >= -0.0 returned FALSE, should be TRUE.");
}
if((pzero < nzero) != FALSE) {
errln("FAIL: 0.0 < -0.0 returned TRUE, should be FALSE.");
}
if((pzero <= nzero) != TRUE) {
errln("FAIL: 0.0 <= -0.0 returned FALSE, should be TRUE.");
}
#if U_PLATFORM != U_PF_OS400 /* OS/400 will generate divide by zero exception MCH1214 */
if(uprv_isInfinite(1/pzero) != TRUE) {
errln("FAIL: isInfinite(1/0.0) returned FALSE, should be TRUE.");
}
if(uprv_isInfinite(1/nzero) != TRUE) {
errln("FAIL: isInfinite(1/-0.0) returned FALSE, should be TRUE.");
}
if(uprv_isPositiveInfinity(1/pzero) != TRUE) {
errln("FAIL: isPositiveInfinity(1/0.0) returned FALSE, should be TRUE.");
}
if(uprv_isNegativeInfinity(1/nzero) != TRUE) {
errln("FAIL: isNegativeInfinity(1/-0.0) returned FALSE, should be TRUE.");
}
#endif
}
//==============================
void
PUtilTest::testIsNaN(void)
{
double pinf = uprv_getInfinity();
double ninf = -uprv_getInfinity();
double nan = uprv_getNaN();
double ten = 10.0;
if(uprv_isNaN(nan) == FALSE) {
errln("FAIL: isNaN() returned FALSE for NaN.");
}
if(uprv_isNaN(pinf) == TRUE) {
errln("FAIL: isNaN() returned TRUE for +Infinity.");
}
if(uprv_isNaN(ninf) == TRUE) {
errln("FAIL: isNaN() returned TRUE for -Infinity.");
}
if(uprv_isNaN(ten) == TRUE) {
errln("FAIL: isNaN() returned TRUE for 10.0.");
}
}
//==============================
void
PUtilTest::NaNGT(void)
{
double pinf = uprv_getInfinity();
double ninf = -uprv_getInfinity();
double nan = uprv_getNaN();
double ten = 10.0;
if((nan > nan) != FALSE) {
logln("WARNING: NaN > NaN returned TRUE, should be FALSE");
}
if((nan > pinf) != FALSE) {
logln("WARNING: NaN > +Infinity returned TRUE, should be FALSE");
}
if((nan > ninf) != FALSE) {
logln("WARNING: NaN > -Infinity returned TRUE, should be FALSE");
}
if((nan > ten) != FALSE) {
logln("WARNING: NaN > 10.0 returned TRUE, should be FALSE");
}
}
//==============================
void
PUtilTest::NaNLT(void)
{
double pinf = uprv_getInfinity();
double ninf = -uprv_getInfinity();
double nan = uprv_getNaN();
double ten = 10.0;
if((nan < nan) != FALSE) {
logln("WARNING: NaN < NaN returned TRUE, should be FALSE");
}
if((nan < pinf) != FALSE) {
logln("WARNING: NaN < +Infinity returned TRUE, should be FALSE");
}
if((nan < ninf) != FALSE) {
logln("WARNING: NaN < -Infinity returned TRUE, should be FALSE");
}
if((nan < ten) != FALSE) {
logln("WARNING: NaN < 10.0 returned TRUE, should be FALSE");
}
}
//==============================
void
PUtilTest::NaNGTE(void)
{
double pinf = uprv_getInfinity();
double ninf = -uprv_getInfinity();
double nan = uprv_getNaN();
double ten = 10.0;
if((nan >= nan) != FALSE) {
logln("WARNING: NaN >= NaN returned TRUE, should be FALSE");
}
if((nan >= pinf) != FALSE) {
logln("WARNING: NaN >= +Infinity returned TRUE, should be FALSE");
}
if((nan >= ninf) != FALSE) {
logln("WARNING: NaN >= -Infinity returned TRUE, should be FALSE");
}
if((nan >= ten) != FALSE) {
logln("WARNING: NaN >= 10.0 returned TRUE, should be FALSE");
}
}
//==============================
void
PUtilTest::NaNLTE(void)
{
double pinf = uprv_getInfinity();
double ninf = -uprv_getInfinity();
double nan = uprv_getNaN();
double ten = 10.0;
if((nan <= nan) != FALSE) {
logln("WARNING: NaN <= NaN returned TRUE, should be FALSE");
}
if((nan <= pinf) != FALSE) {
logln("WARNING: NaN <= +Infinity returned TRUE, should be FALSE");
}
if((nan <= ninf) != FALSE) {
logln("WARNING: NaN <= -Infinity returned TRUE, should be FALSE");
}
if((nan <= ten) != FALSE) {
logln("WARNING: NaN <= 10.0 returned TRUE, should be FALSE");
}
}
//==============================
void
PUtilTest::NaNE(void)
{
double pinf = uprv_getInfinity();
double ninf = -uprv_getInfinity();
double nan = uprv_getNaN();
double ten = 10.0;
if((nan == nan) != FALSE) {
logln("WARNING: NaN == NaN returned TRUE, should be FALSE");
}
if((nan == pinf) != FALSE) {
logln("WARNING: NaN == +Infinity returned TRUE, should be FALSE");
}
if((nan == ninf) != FALSE) {
logln("WARNING: NaN == -Infinity returned TRUE, should be FALSE");
}
if((nan == ten) != FALSE) {
logln("WARNING: NaN == 10.0 returned TRUE, should be FALSE");
}
}
//==============================
void
PUtilTest::NaNNE(void)
{
double pinf = uprv_getInfinity();
double ninf = -uprv_getInfinity();
double nan = uprv_getNaN();
double ten = 10.0;
if((nan != nan) != TRUE) {
logln("WARNING: NaN != NaN returned FALSE, should be TRUE");
}
if((nan != pinf) != TRUE) {
logln("WARNING: NaN != +Infinity returned FALSE, should be TRUE");
}
if((nan != ninf) != TRUE) {
logln("WARNING: NaN != -Infinity returned FALSE, should be TRUE");
}
if((nan != ten) != TRUE) {
logln("WARNING: NaN != 10.0 returned FALSE, should be TRUE");
}
}