// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/***********************************************************************
* COPYRIGHT:
* Copyright (c) 1997-2010, International Business Machines Corporation
* and others. All Rights Reserved.
***********************************************************************/
#include "unicode/utypes.h"
#if !UCONFIG_NO_FORMATTING
#include "tzbdtest.h"
#include "unicode/timezone.h"
#include "unicode/simpletz.h"
#include "unicode/gregocal.h"
#include "putilimp.h"
void TimeZoneBoundaryTest::runIndexedTest( int32_t index, UBool exec, const char* &name, char* /*par*/ )
{
if (exec) logln("TestSuite TestTimeZoneBoundary");
switch (index) {
case 0:
name = "TestBoundaries";
if (exec) {
logln("TestBoundaries---"); logln("");
TestBoundaries();
}
break;
case 1:
name = "TestNewRules";
if (exec) {
logln("TestNewRules---"); logln("");
TestNewRules();
}
break;
case 2:
name = "TestStepwise";
if (exec) {
logln("TestStepwise---"); logln("");
TestStepwise();
}
break;
default: name = ""; break;
}
}
// *****************************************************************************
// class TimeZoneBoundaryTest
// *****************************************************************************
TimeZoneBoundaryTest::TimeZoneBoundaryTest()
:
ONE_SECOND(1000),
ONE_MINUTE(60 * ONE_SECOND),
ONE_HOUR(60 * ONE_MINUTE),
ONE_DAY(24 * ONE_HOUR),
ONE_YEAR(uprv_floor(365.25 * ONE_DAY)),
SIX_MONTHS(ONE_YEAR / 2)
{
}
const int32_t TimeZoneBoundaryTest::MONTH_LENGTH[] = {
31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
};
const UDate TimeZoneBoundaryTest::PST_1997_BEG = 860320800000.0;
const UDate TimeZoneBoundaryTest::PST_1997_END = 877856400000.0;
const UDate TimeZoneBoundaryTest::INTERVAL = 10;
// -------------------------------------
void
TimeZoneBoundaryTest::findDaylightBoundaryUsingDate(UDate d, const char* startMode, UDate expectedBoundary)
{
UnicodeString str;
if (dateToString(d, str).indexOf(startMode) == - 1) {
logln(UnicodeString("Error: ") + startMode + " not present in " + str);
}
UDate min = d;
UDate max = min + SIX_MONTHS;
while ((max - min) > INTERVAL) {
UDate mid = (min + max) / 2;
UnicodeString* s = &dateToString(mid, str);
if (s->indexOf(startMode) != - 1) {
min = mid;
}
else {
max = mid;
}
}
logln("Date Before: " + showDate(min));
logln("Date After: " + showDate(max));
UDate mindelta = expectedBoundary - min;
UDate maxdelta = max - expectedBoundary;
if (mindelta >= 0 &&
mindelta <= INTERVAL &&
maxdelta >= 0 &&
maxdelta <= INTERVAL) logln(UnicodeString("PASS: Expected boundary at ") + expectedBoundary);
else dataerrln(UnicodeString("FAIL: Expected boundary at ") + expectedBoundary);
}
// -------------------------------------
void
TimeZoneBoundaryTest::findDaylightBoundaryUsingTimeZone(UDate d, UBool startsInDST, UDate expectedBoundary)
{
TimeZone *zone = TimeZone::createDefault();
findDaylightBoundaryUsingTimeZone(d, startsInDST, expectedBoundary, zone);
delete zone;
}
// -------------------------------------
void
TimeZoneBoundaryTest::findDaylightBoundaryUsingTimeZone(UDate d, UBool startsInDST, UDate expectedBoundary, TimeZone* tz)
{
UErrorCode status = U_ZERO_ERROR;
UnicodeString str;
UDate min = d;
UDate max = min + SIX_MONTHS;
if (tz->inDaylightTime(d, status) != startsInDST) {
dataerrln("FAIL: " + tz->getID(str) + " inDaylightTime(" + dateToString(d) + ") != " + (startsInDST ? "true" : "false"));
startsInDST = !startsInDST;
}
if (failure(status, "TimeZone::inDaylightTime", TRUE)) return;
if (tz->inDaylightTime(max, status) == startsInDST) {
dataerrln("FAIL: " + tz->getID(str) + " inDaylightTime(" + dateToString(max) + ") != " + (startsInDST ? "false" : "true"));
return;
}
if (failure(status, "TimeZone::inDaylightTime")) return;
while ((max - min) > INTERVAL) {
UDate mid = (min + max) / 2;
UBool isIn = tz->inDaylightTime(mid, status);
if (failure(status, "TimeZone::inDaylightTime")) return;
if (isIn == startsInDST) {
min = mid;
}
else {
max = mid;
}
}
logln(tz->getID(str) + " Before: " + showDate(min));
logln(tz->getID(str) + " After: " + showDate(max));
UDate mindelta = expectedBoundary - min;
UDate maxdelta = max - expectedBoundary;
if (mindelta >= 0 &&
mindelta <= INTERVAL &&
maxdelta >= 0 &&
maxdelta <= INTERVAL) logln(UnicodeString("PASS: Expected boundary at ") + expectedBoundary);
else errln(UnicodeString("FAIL: Expected boundary at ") + expectedBoundary);
}
// -------------------------------------
/*
UnicodeString*
TimeZoneBoundaryTest::showDate(int32_t l)
{
return showDate(new Date(l));
}
*/
// -------------------------------------
UnicodeString
TimeZoneBoundaryTest::showDate(UDate d)
{
int32_t y, m, day, h, min, sec;
dateToFields(d, y, m, day, h, min, sec);
return UnicodeString("") + y + "/" + showNN(m + 1) + "/" +
showNN(day) + " " + showNN(h) + ":" + showNN(min) +
" \"" + dateToString(d) + "\" = " + uprv_floor(d+0.5);
}
// -------------------------------------
UnicodeString
TimeZoneBoundaryTest::showNN(int32_t n)
{
UnicodeString nStr;
if (n < 10) {
nStr += UnicodeString("0", "");
}
return nStr + n;
}
// -------------------------------------
void
TimeZoneBoundaryTest::verifyDST(UDate d, TimeZone* time_zone, UBool expUseDaylightTime, UBool expInDaylightTime, UDate expZoneOffset, UDate expDSTOffset)
{
UnicodeString str;
UErrorCode status = U_ZERO_ERROR;
logln("-- Verifying time " + dateToString(d) + " in zone " + time_zone->getID(str));
if (time_zone->inDaylightTime(d, status) == expInDaylightTime)
logln(UnicodeString("PASS: inDaylightTime = ") + (time_zone->inDaylightTime(d, status)?"true":"false"));
else
dataerrln(UnicodeString("FAIL: inDaylightTime = ") + (time_zone->inDaylightTime(d, status)?"true":"false"));
if (failure(status, "TimeZone::inDaylightTime", TRUE))
return;
if (time_zone->useDaylightTime() == expUseDaylightTime)
logln(UnicodeString("PASS: useDaylightTime = ") + (time_zone->useDaylightTime()?"true":"false"));
else
dataerrln(UnicodeString("FAIL: useDaylightTime = ") + (time_zone->useDaylightTime()?"true":"false"));
if (time_zone->getRawOffset() == expZoneOffset)
logln(UnicodeString("PASS: getRawOffset() = ") + (expZoneOffset / ONE_HOUR));
else
dataerrln(UnicodeString("FAIL: getRawOffset() = ") + (time_zone->getRawOffset() / ONE_HOUR) + "; expected " + (expZoneOffset / ONE_HOUR));
GregorianCalendar *gc = new GregorianCalendar(time_zone->clone(), status);
gc->setTime(d, status);
if (failure(status, "GregorianCalendar::setTime")) return;
int32_t offset = time_zone->getOffset((uint8_t)gc->get(UCAL_ERA, status),
gc->get(UCAL_YEAR, status), gc->get(UCAL_MONTH, status),
gc->get(UCAL_DATE, status), (uint8_t)gc->get(UCAL_DAY_OF_WEEK, status),
((gc->get(UCAL_HOUR_OF_DAY, status) * 60 + gc->get(UCAL_MINUTE, status)) * 60 + gc->get(UCAL_SECOND, status)) * 1000 + gc->get(UCAL_MILLISECOND, status),
status);
if (failure(status, "GregorianCalendar::get")) return;
if (offset == expDSTOffset) logln(UnicodeString("PASS: getOffset() = ") + (offset / ONE_HOUR));
else dataerrln(UnicodeString("FAIL: getOffset() = ") + (offset / ONE_HOUR) + "; expected " + (expDSTOffset / ONE_HOUR));
delete gc;
}
// -------------------------------------
/**
* Check that the given year/month/dom/hour maps to and from the
* given epochHours. This verifies the functioning of the
* calendar and time zone in conjunction with one another,
* including the calendar time->fields and fields->time and
* the time zone getOffset method.
*
* @param epochHours hours after Jan 1 1970 0:00 GMT.
*/
void TimeZoneBoundaryTest::verifyMapping(Calendar& cal, int year, int month, int dom, int hour,
double epochHours) {
double H = 3600000.0;
UErrorCode status = U_ZERO_ERROR;
cal.clear();
cal.set(year, month, dom, hour, 0, 0);
UDate e = cal.getTime(status)/ H;
UDate ed = (epochHours * H);
if (e == epochHours) {
logln(UnicodeString("Ok: ") + year + "/" + (month+1) + "/" + dom + " " + hour + ":00 => " +
e + " (" + ed + ")");
} else {
dataerrln(UnicodeString("FAIL: ") + year + "/" + (month+1) + "/" + dom + " " + hour + ":00 => " +
e + " (" + (e * H) + ")" +
", expected " + epochHours + " (" + ed + ")");
}
cal.setTime(ed, status);
if (cal.get(UCAL_YEAR, status) == year &&
cal.get(UCAL_MONTH, status) == month &&
cal.get(UCAL_DATE, status) == dom &&
cal.get(UCAL_MILLISECONDS_IN_DAY, status) == hour * 3600000) {
logln(UnicodeString("Ok: ") + epochHours + " (" + ed + ") => " +
cal.get(UCAL_YEAR, status) + "/" +
(cal.get(UCAL_MONTH, status)+1) + "/" +
cal.get(UCAL_DATE, status) + " " +
cal.get(UCAL_MILLISECOND, status)/H);
} else {
dataerrln(UnicodeString("FAIL: ") + epochHours + " (" + ed + ") => " +
cal.get(UCAL_YEAR, status) + "/" +
(cal.get(UCAL_MONTH, status)+1) + "/" +
cal.get(UCAL_DATE, status) + " " +
cal.get(UCAL_MILLISECOND, status)/H +
", expected " + year + "/" + (month+1) + "/" + dom +
" " + hour);
}
}
/**
* Test the behavior of SimpleTimeZone at the transition into and out of DST.
* Use a binary search to find boundaries.
*/
void
TimeZoneBoundaryTest::TestBoundaries()
{
UErrorCode status = U_ZERO_ERROR;
TimeZone* pst = TimeZone::createTimeZone("PST");
Calendar* tempcal = Calendar::createInstance(pst, status);
if(U_SUCCESS(status)){
verifyMapping(*tempcal, 1997, Calendar::APRIL, 3, 0, 238904.0);
verifyMapping(*tempcal, 1997, Calendar::APRIL, 4, 0, 238928.0);
verifyMapping(*tempcal, 1997, Calendar::APRIL, 5, 0, 238952.0);
verifyMapping(*tempcal, 1997, Calendar::APRIL, 5, 23, 238975.0);
verifyMapping(*tempcal, 1997, Calendar::APRIL, 6, 0, 238976.0);
verifyMapping(*tempcal, 1997, Calendar::APRIL, 6, 1, 238977.0);
verifyMapping(*tempcal, 1997, Calendar::APRIL, 6, 3, 238978.0);
}else{
dataerrln("Could not create calendar. Error: %s", u_errorName(status));
}
TimeZone* utc = TimeZone::createTimeZone("UTC");
Calendar* utccal = Calendar::createInstance(utc, status);
if(U_SUCCESS(status)){
verifyMapping(*utccal, 1997, Calendar::APRIL, 6, 0, 238968.0);
}else{
dataerrln("Could not create calendar. Error: %s", u_errorName(status));
}
TimeZone* save = TimeZone::createDefault();
TimeZone::setDefault(*pst);
if (tempcal != NULL) {
// DST changeover for PST is 4/6/1997 at 2 hours past midnight
// at 238978.0 epoch hours.
tempcal->clear();
tempcal->set(1997, Calendar::APRIL, 6);
UDate d = tempcal->getTime(status);
// i is minutes past midnight standard time
for (int i=-120; i<=180; i+=60)
{
UBool inDST = (i >= 120);
tempcal->setTime(d + i*60*1000, status);
verifyDST(tempcal->getTime(status),pst, TRUE, inDST, -8*ONE_HOUR,inDST ? -7*ONE_HOUR : -8*ONE_HOUR);
}
}
TimeZone::setDefault(*save);
delete save;
delete utccal;
delete tempcal;
#if 1
{
logln("--- Test a ---");
UDate d = date(97, UCAL_APRIL, 6);
TimeZone *z = TimeZone::createTimeZone("PST");
for (int32_t i = 60; i <= 180; i += 15) {
UBool inDST = (i >= 120);
UDate e = d + i * 60 * 1000;
verifyDST(e, z, TRUE, inDST, - 8 * ONE_HOUR, inDST ? - 7 * ONE_HOUR: - 8 * ONE_HOUR);
}
delete z;
}
#endif
#if 1
{
logln("--- Test b ---");
TimeZone *tz;
TimeZone::setDefault(*(tz = TimeZone::createTimeZone("PST")));
delete tz;
logln("========================================");
findDaylightBoundaryUsingDate(date(97, 0, 1), "PST", PST_1997_BEG);
logln("========================================");
findDaylightBoundaryUsingDate(date(97, 6, 1), "PDT", PST_1997_END);
}
#endif
#if 1
{
logln("--- Test c ---");
logln("========================================");
TimeZone* z = TimeZone::createTimeZone("Australia/Adelaide");
findDaylightBoundaryUsingTimeZone(date(97, 0, 1), TRUE, 859653000000.0, z);
logln("========================================");
findDaylightBoundaryUsingTimeZone(date(97, 6, 1), FALSE, 877797000000.0, z);
delete z;
}
#endif
#if 1
{
logln("--- Test d ---");
logln("========================================");
findDaylightBoundaryUsingTimeZone(date(97, 0, 1), FALSE, PST_1997_BEG);
logln("========================================");
findDaylightBoundaryUsingTimeZone(date(97, 6, 1), TRUE, PST_1997_END);
}
#endif
#if 0
{
logln("--- Test e ---");
TimeZone *z = TimeZone::createDefault();
logln(UnicodeString("") + z->getOffset(1, 97, 3, 4, 6, 0) + " " + date(97, 3, 4));
logln(UnicodeString("") + z->getOffset(1, 97, 3, 5, 7, 0) + " " + date(97, 3, 5));
logln(UnicodeString("") + z->getOffset(1, 97, 3, 6, 1, 0) + " " + date(97, 3, 6));
logln(UnicodeString("") + z->getOffset(1, 97, 3, 7, 2, 0) + " " + date(97, 3, 7));
delete z;
}
#endif
}
// -------------------------------------
void
TimeZoneBoundaryTest::testUsingBinarySearch(SimpleTimeZone* tz, UDate d, UDate expectedBoundary)
{
UErrorCode status = U_ZERO_ERROR;
UDate min = d;
UDate max = min + SIX_MONTHS;
UBool startsInDST = tz->inDaylightTime(d, status);
if (failure(status, "SimpleTimeZone::inDaylightTime", TRUE)) return;
if (tz->inDaylightTime(max, status) == startsInDST) {
errln("Error: inDaylightTime(" + dateToString(max) + ") != " + ((!startsInDST)?"true":"false"));
}
if (failure(status, "SimpleTimeZone::inDaylightTime")) return;
while ((max - min) > INTERVAL) {
UDate mid = (min + max) / 2;
if (tz->inDaylightTime(mid, status) == startsInDST) {
min = mid;
}
else {
max = mid;
}
if (failure(status, "SimpleTimeZone::inDaylightTime")) return;
}
logln("Binary Search Before: " + showDate(min));
logln("Binary Search After: " + showDate(max));
UDate mindelta = expectedBoundary - min;
UDate maxdelta = max - expectedBoundary;
if (mindelta >= 0 &&
mindelta <= INTERVAL &&
maxdelta >= 0 &&
maxdelta <= INTERVAL) logln(UnicodeString("PASS: Expected boundary at ") + expectedBoundary);
else errln(UnicodeString("FAIL: Expected boundary at ") + expectedBoundary);
}
// -------------------------------------
/**
* Test the handling of the "new" rules; that is, rules other than nth Day of week.
*/
void
TimeZoneBoundaryTest::TestNewRules()
{
#if 1
{
UErrorCode status = U_ZERO_ERROR;
SimpleTimeZone *tz;
logln("-----------------------------------------------------------------");
logln("Aug 2ndTues .. Mar 15");
tz = new SimpleTimeZone(- 8 * (int32_t)ONE_HOUR, "Test_1", UCAL_AUGUST, 2, UCAL_TUESDAY, 2 * (int32_t)ONE_HOUR, UCAL_MARCH, 15, 0, 2 * (int32_t)ONE_HOUR, status);
logln("========================================");
testUsingBinarySearch(tz, date(97, 0, 1), 858416400000.0);
logln("========================================");
testUsingBinarySearch(tz, date(97, 6, 1), 871380000000.0);
delete tz;
logln("-----------------------------------------------------------------");
logln("Apr Wed>=14 .. Sep Sun<=20");
tz = new SimpleTimeZone(- 8 * (int32_t)ONE_HOUR, "Test_2", UCAL_APRIL, 14, - UCAL_WEDNESDAY, 2 *(int32_t)ONE_HOUR, UCAL_SEPTEMBER, - 20, - UCAL_SUNDAY, 2 * (int32_t)ONE_HOUR, status);
logln("========================================");
testUsingBinarySearch(tz, date(97, 0, 1), 861184800000.0);
logln("========================================");
testUsingBinarySearch(tz, date(97, 6, 1), 874227600000.0);
delete tz;
}
#endif
}
// -------------------------------------
void
TimeZoneBoundaryTest::findBoundariesStepwise(int32_t year, UDate interval, TimeZone* z, int32_t expectedChanges)
{
UErrorCode status = U_ZERO_ERROR;
UnicodeString str;
UDate d = date(year - 1900, UCAL_JANUARY, 1);
UDate time = d;
UDate limit = time + ONE_YEAR + ONE_DAY;
UBool lastState = z->inDaylightTime(d, status);
if (failure(status, "TimeZone::inDaylightTime", TRUE)) return;
int32_t changes = 0;
logln(UnicodeString("-- Zone ") + z->getID(str) + " starts in " + year + " with DST = " + (lastState?"true":"false"));
logln(UnicodeString("useDaylightTime = ") + (z->useDaylightTime()?"true":"false"));
while (time < limit) {
d = time;
UBool state = z->inDaylightTime(d, status);
if (failure(status, "TimeZone::inDaylightTime")) return;
if (state != lastState) {
logln(UnicodeString(state ? "Entry ": "Exit ") + "at " + d);
lastState = state;++changes;
}
time += interval;
}
if (changes == 0) {
if (!lastState &&
!z->useDaylightTime()) logln("No DST");
else errln("FAIL: DST all year, or no DST with true useDaylightTime");
}
else if (changes != 2) {
errln(UnicodeString("FAIL: ") + changes + " changes seen; should see 0 or 2");
}
else if (!z->useDaylightTime()) {
errln("FAIL: useDaylightTime false but 2 changes seen");
}
if (changes != expectedChanges) {
dataerrln(UnicodeString("FAIL: ") + changes + " changes seen; expected " + expectedChanges);
}
}
// -------------------------------------
/**
* This test is problematic. It makes assumptions about the behavior
* of specific zones. Since ICU's zone table is based on the Olson
* zones (the UNIX zones), and those change from time to time, this
* test can fail after a zone table update. If that happens, the
* selected zones need to be updated to have the behavior
* expected. That is, they should have DST, not have DST, and have DST
* -- other than that this test isn't picky. 12/3/99 aliu
*
* Test the behavior of SimpleTimeZone at the transition into and out of DST.
* Use a stepwise march to find boundaries.
*/
void
TimeZoneBoundaryTest::TestStepwise()
{
TimeZone *zone = TimeZone::createTimeZone("America/New_York");
findBoundariesStepwise(1997, ONE_DAY, zone, 2);
delete zone;
zone = TimeZone::createTimeZone("UTC"); // updated 12/3/99 aliu
findBoundariesStepwise(1997, ONE_DAY, zone, 0);
delete zone;
zone = TimeZone::createTimeZone("Australia/Adelaide");
findBoundariesStepwise(1997, ONE_DAY, zone, 2);
delete zone;
}
#endif /* #if !UCONFIG_NO_FORMATTING */