411 lines
15 KiB
C++
411 lines
15 KiB
C++
/********************************************************************
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* COPYRIGHT:
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* Copyright (c) 1997-1999, International Business Machines Corporation and
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* others. All Rights Reserved.
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********************************************************************/
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#include "tzbdtest.h"
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#include <math.h>
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#include "unicode/timezone.h"
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#include "unicode/simpletz.h"
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#include "unicode/gregocal.h"
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void TimeZoneBoundaryTest::runIndexedTest( int32_t index, UBool exec, const char* &name, char* par )
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{
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if (exec) logln("TestSuite TestTimeZoneBoundary");
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switch (index) {
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case 0:
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name = "TestBoundaries";
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if (exec) {
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logln("TestBoundaries---"); logln("");
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TestBoundaries();
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}
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break;
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case 1:
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name = "TestNewRules";
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if (exec) {
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logln("TestNewRules---"); logln("");
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TestNewRules();
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}
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break;
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case 2:
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name = "TestStepwise";
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if (exec) {
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logln("TestStepwise---"); logln("");
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TestStepwise();
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}
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break;
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default: name = ""; break;
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}
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}
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// *****************************************************************************
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// class TimeZoneBoundaryTest
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// *****************************************************************************
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UDate TimeZoneBoundaryTest::ONE_SECOND = 1000;
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UDate TimeZoneBoundaryTest::ONE_MINUTE = 60 * ONE_SECOND;
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UDate TimeZoneBoundaryTest::ONE_HOUR = 60 * ONE_MINUTE;
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UDate TimeZoneBoundaryTest::ONE_DAY = 24 * ONE_HOUR;
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UDate TimeZoneBoundaryTest::ONE_YEAR = uprv_floor(365.25 * ONE_DAY);
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UDate TimeZoneBoundaryTest::SIX_MONTHS = ONE_YEAR / 2;
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int32_t TimeZoneBoundaryTest::MONTH_LENGTH[] = {
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31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
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};
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UDate TimeZoneBoundaryTest::PST_1997_BEG = 860320800000.0;
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UDate TimeZoneBoundaryTest::PST_1997_END = 877856400000.0;
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UDate TimeZoneBoundaryTest::INTERVAL = 10;
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// -------------------------------------
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void
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TimeZoneBoundaryTest::findDaylightBoundaryUsingDate(UDate d, const char* startMode, UDate expectedBoundary)
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{
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UnicodeString str;
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if (dateToString(d, str).indexOf(startMode) == - 1) {
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logln(UnicodeString("Error: ") + startMode + " not present in " + str);
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}
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UDate min = d;
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UDate max = min + SIX_MONTHS;
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while ((max - min) > INTERVAL) {
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UDate mid = (min + max) / 2;
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UnicodeString* s = &dateToString(mid, str);
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if (s->indexOf(startMode) != - 1) {
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min = mid;
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}
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else {
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max = mid;
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}
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}
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logln("Date Before: " + showDate(min));
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logln("Date After: " + showDate(max));
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UDate mindelta = expectedBoundary - min;
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UDate maxdelta = max - expectedBoundary;
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if (mindelta >= 0 &&
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mindelta <= INTERVAL &&
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maxdelta >= 0 &&
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maxdelta <= INTERVAL) logln(UnicodeString("PASS: Expected boundary at ") + expectedBoundary);
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else errln(UnicodeString("FAIL: Expected boundary at ") + expectedBoundary);
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}
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// -------------------------------------
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void
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TimeZoneBoundaryTest::findDaylightBoundaryUsingTimeZone(UDate d, UBool startsInDST, UDate expectedBoundary)
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{
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TimeZone *zone = TimeZone::createDefault();
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findDaylightBoundaryUsingTimeZone(d, startsInDST, expectedBoundary, zone);
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delete zone;
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}
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// -------------------------------------
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void
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TimeZoneBoundaryTest::findDaylightBoundaryUsingTimeZone(UDate d, UBool startsInDST, UDate expectedBoundary, TimeZone* tz)
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{
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UErrorCode status = U_ZERO_ERROR;
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UnicodeString str;
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UDate min = d;
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UDate max = min + SIX_MONTHS;
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if (tz->inDaylightTime(d, status) != startsInDST) {
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errln("FAIL: " + tz->getID(str) + " inDaylightTime(" + dateToString(d) + ") != " + (startsInDST ? "true" : "false"));
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startsInDST = !startsInDST;
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}
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if (failure(status, "TimeZone::inDaylightTime")) return;
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if (tz->inDaylightTime(max, status) == startsInDST) {
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errln("FAIL: " + tz->getID(str) + " inDaylightTime(" + dateToString(max) + ") != " + (startsInDST ? "false" : "true"));
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return;
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}
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if (failure(status, "TimeZone::inDaylightTime")) return;
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while ((max - min) > INTERVAL) {
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UDate mid = (min + max) / 2;
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UBool isIn = tz->inDaylightTime(mid, status);
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if (failure(status, "TimeZone::inDaylightTime")) return;
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if (isIn == startsInDST) {
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min = mid;
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}
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else {
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max = mid;
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}
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}
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logln(tz->getID(str) + " Before: " + showDate(min));
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logln(tz->getID(str) + " After: " + showDate(max));
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UDate mindelta = expectedBoundary - min;
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UDate maxdelta = max - expectedBoundary;
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if (mindelta >= 0 &&
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mindelta <= INTERVAL &&
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maxdelta >= 0 &&
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maxdelta <= INTERVAL) logln(UnicodeString("PASS: Expected boundary at ") + expectedBoundary);
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else errln(UnicodeString("FAIL: Expected boundary at ") + expectedBoundary);
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}
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// -------------------------------------
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/*
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UnicodeString*
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TimeZoneBoundaryTest::showDate(int32_t l)
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{
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return showDate(new Date(l));
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}
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*/
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// -------------------------------------
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UnicodeString
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TimeZoneBoundaryTest::showDate(UDate d)
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{
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int32_t y, m, day, h, min, sec;
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dateToFields(d, y, m, day, h, min, sec);
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return UnicodeString("") + y + "/" + showNN(m + 1) + "/" +
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showNN(day) + " " + showNN(h) + ":" + showNN(min) +
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" \"" + dateToString(d) + "\" = " + uprv_floor(d+0.5);
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}
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// -------------------------------------
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UnicodeString
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TimeZoneBoundaryTest::showNN(int32_t n)
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{
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return ((n < 10) ? UnicodeString("0"): UnicodeString("")) + n;
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}
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// -------------------------------------
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void
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TimeZoneBoundaryTest::verifyDST(UDate d, TimeZone* time_zone, UBool expUseDaylightTime, UBool expInDaylightTime, UDate expZoneOffset, UDate expDSTOffset)
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{
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UnicodeString str;
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UErrorCode status = U_ZERO_ERROR;
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logln("-- Verifying time " + dateToString(d) + " in zone " + time_zone->getID(str));
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if (time_zone->inDaylightTime(d, status) == expInDaylightTime)
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logln(UnicodeString("PASS: inDaylightTime = ") + (time_zone->inDaylightTime(d, status)?"true":"false"));
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else errln(UnicodeString("FAIL: inDaylightTime = ") + (time_zone->inDaylightTime(d, status)?"true":"false"));
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if (failure(status, "TimeZone::inDaylightTime")) return;
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if (time_zone->useDaylightTime() == expUseDaylightTime)
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logln(UnicodeString("PASS: useDaylightTime = ") + (time_zone->useDaylightTime()?"true":"false"));
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else errln(UnicodeString("FAIL: useDaylightTime = ") + (time_zone->useDaylightTime()?"true":"false"));
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if (time_zone->getRawOffset() == expZoneOffset) logln(UnicodeString("PASS: getRawOffset() = ") + (expZoneOffset / ONE_HOUR));
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else errln(UnicodeString("FAIL: getRawOffset() = ") + (time_zone->getRawOffset() / ONE_HOUR) + "; expected " + (expZoneOffset / ONE_HOUR));
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GregorianCalendar *gc = new GregorianCalendar(time_zone->clone(), status);
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gc->setTime(d, status);
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if (failure(status, "GregorianCalendar::setTime")) return;
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int32_t offset = time_zone->getOffset((uint8_t)gc->get(gc->ERA, status),
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gc->get(gc->YEAR, status), gc->get(gc->MONTH, status),
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gc->get(gc->DAY_OF_MONTH, status), (uint8_t)gc->get(gc->DAY_OF_WEEK, status),
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((gc->get(gc->HOUR_OF_DAY, status) * 60 + gc->get(gc->MINUTE, status)) * 60 + gc->get(gc->SECOND, status)) * 1000 + gc->get(gc->MILLISECOND, status));
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if (failure(status, "GregorianCalendar::get")) return;
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if (offset == expDSTOffset) logln(UnicodeString("PASS: getOffset() = ") + (offset / ONE_HOUR));
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else errln(UnicodeString("FAIL: getOffset() = ") + (offset / ONE_HOUR) + "; expected " + (expDSTOffset / ONE_HOUR));
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delete gc;
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}
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// -------------------------------------
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/**
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* Test the behavior of SimpleTimeZone at the transition into and out of DST.
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* Use a binary search to find boundaries.
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*/
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void
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TimeZoneBoundaryTest::TestBoundaries()
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{
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#if 1
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{
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logln("--- Test a ---");
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UDate d = date(97, Calendar::APRIL, 6);
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TimeZone *z = TimeZone::createTimeZone("PST");
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for (int32_t i = 60; i <= 180; i += 15) {
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UBool inDST = (i >= 120);
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UDate e = d + i * 60 * 1000;
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verifyDST(e, z, TRUE, inDST, - 8 * ONE_HOUR, inDST ? - 7 * ONE_HOUR: - 8 * ONE_HOUR);
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}
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delete z;
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}
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#endif
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#if 1
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{
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logln("--- Test b ---");
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TimeZone *tz;
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TimeZone::setDefault(*(tz = TimeZone::createTimeZone("PST")));
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delete tz;
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logln("========================================");
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findDaylightBoundaryUsingDate(date(97, 0, 1), "PST", PST_1997_BEG);
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logln("========================================");
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findDaylightBoundaryUsingDate(date(97, 6, 1), "PDT", PST_1997_END);
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}
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#endif
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#if 1
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{
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logln("--- Test c ---");
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logln("========================================");
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TimeZone* z = TimeZone::createTimeZone("Australia/Adelaide");
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findDaylightBoundaryUsingTimeZone(date(97, 0, 1), TRUE, 859653000000.0, z);
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logln("========================================");
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findDaylightBoundaryUsingTimeZone(date(97, 6, 1), FALSE, 877797000000.0, z);
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delete z;
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}
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#endif
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#if 1
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{
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logln("--- Test d ---");
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logln("========================================");
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findDaylightBoundaryUsingTimeZone(date(97, 0, 1), FALSE, PST_1997_BEG);
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logln("========================================");
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findDaylightBoundaryUsingTimeZone(date(97, 6, 1), TRUE, PST_1997_END);
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}
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#endif
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#if 0
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{
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logln("--- Test e ---");
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TimeZone *z = TimeZone::createDefault();
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logln(UnicodeString("") + z->getOffset(1, 97, 3, 4, 6, 0) + " " + date(97, 3, 4));
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logln(UnicodeString("") + z->getOffset(1, 97, 3, 5, 7, 0) + " " + date(97, 3, 5));
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logln(UnicodeString("") + z->getOffset(1, 97, 3, 6, 1, 0) + " " + date(97, 3, 6));
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logln(UnicodeString("") + z->getOffset(1, 97, 3, 7, 2, 0) + " " + date(97, 3, 7));
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delete z;
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}
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#endif
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}
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// -------------------------------------
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void
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TimeZoneBoundaryTest::testUsingBinarySearch(SimpleTimeZone* tz, UDate d, UDate expectedBoundary)
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{
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UErrorCode status = U_ZERO_ERROR;
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UDate min = d;
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UDate max = min + SIX_MONTHS;
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UBool startsInDST = tz->inDaylightTime(d, status);
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if (failure(status, "SimpleTimeZone::inDaylightTime")) return;
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if (tz->inDaylightTime(max, status) == startsInDST) {
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logln("Error: inDaylightTime(" + dateToString(max) + ") != " + ((!startsInDST)?"true":"false"));
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}
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if (failure(status, "SimpleTimeZone::inDaylightTime")) return;
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while ((max - min) > INTERVAL) {
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UDate mid = (min + max) / 2;
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if (tz->inDaylightTime(mid, status) == startsInDST) {
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min = mid;
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}
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else {
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max = mid;
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}
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if (failure(status, "SimpleTimeZone::inDaylightTime")) return;
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}
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logln("Binary Search Before: " + showDate(min));
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logln("Binary Search After: " + showDate(max));
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UDate mindelta = expectedBoundary - min;
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UDate maxdelta = max - expectedBoundary;
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if (mindelta >= 0 &&
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mindelta <= INTERVAL &&
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maxdelta >= 0 &&
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maxdelta <= INTERVAL) logln(UnicodeString("PASS: Expected boundary at ") + expectedBoundary);
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else errln(UnicodeString("FAIL: Expected boundary at ") + expectedBoundary);
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}
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// -------------------------------------
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/**
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* Test the handling of the "new" rules; that is, rules other than nth Day of week.
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*/
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void
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TimeZoneBoundaryTest::TestNewRules()
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{
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#if 1
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{
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UErrorCode status = U_ZERO_ERROR;
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SimpleTimeZone *tz;
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logln("-----------------------------------------------------------------");
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logln("Aug 2ndTues .. Mar 15");
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tz = new SimpleTimeZone(- 8 * (int32_t)ONE_HOUR, "Test_1", Calendar::AUGUST, 2, Calendar::TUESDAY, 2 * (int32_t)ONE_HOUR, Calendar::MARCH, 15, 0, 2 * (int32_t)ONE_HOUR, status);
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logln("========================================");
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testUsingBinarySearch(tz, date(97, 0, 1), 858416400000.0);
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logln("========================================");
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testUsingBinarySearch(tz, date(97, 6, 1), 871380000000.0);
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delete tz;
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logln("-----------------------------------------------------------------");
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logln("Apr Wed>=14 .. Sep Sun<=20");
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tz = new SimpleTimeZone(- 8 * (int32_t)ONE_HOUR, "Test_2", Calendar::APRIL, 14, - Calendar::WEDNESDAY, 2 *(int32_t)ONE_HOUR, Calendar::SEPTEMBER, - 20, - Calendar::SUNDAY, 2 * (int32_t)ONE_HOUR, status);
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logln("========================================");
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testUsingBinarySearch(tz, date(97, 0, 1), 861184800000.0);
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logln("========================================");
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testUsingBinarySearch(tz, date(97, 6, 1), 874227600000.0);
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delete tz;
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}
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#endif
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}
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// -------------------------------------
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void
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TimeZoneBoundaryTest::findBoundariesStepwise(int32_t year, UDate interval, TimeZone* z, int32_t expectedChanges)
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{
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UErrorCode status = U_ZERO_ERROR;
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UnicodeString str;
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UDate d = date(year - 1900, Calendar::JANUARY, 1);
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UDate time = d;
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UDate limit = time + ONE_YEAR + ONE_DAY;
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UBool lastState = z->inDaylightTime(d, status);
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if (failure(status, "TimeZone::inDaylightTime")) return;
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int32_t changes = 0;
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logln(UnicodeString("-- Zone ") + z->getID(str) + " starts in " + year + " with DST = " + (lastState?"true":"false"));
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logln(UnicodeString("useDaylightTime = ") + (z->useDaylightTime()?"true":"false"));
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while (time < limit) {
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d = time;
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UBool state = z->inDaylightTime(d, status);
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if (failure(status, "TimeZone::inDaylightTime")) return;
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if (state != lastState) {
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logln(UnicodeString(state ? "Entry ": "Exit ") + "at " + d);
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lastState = state;++changes;
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}
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time += interval;
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}
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if (changes == 0) {
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if (!lastState &&
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!z->useDaylightTime()) logln("No DST");
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else errln("FAIL: DST all year, or no DST with true useDaylightTime");
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}
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else if (changes != 2) {
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errln(UnicodeString("FAIL: ") + changes + " changes seen; should see 0 or 2");
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}
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else if (!z->useDaylightTime()) {
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errln("FAIL: useDaylightTime false but 2 changes seen");
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}
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if (changes != expectedChanges) {
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errln(UnicodeString("FAIL: ") + changes + " changes seen; expected " + expectedChanges);
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}
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}
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// -------------------------------------
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/**
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* This test is problematic. It makes assumptions about the behavior
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* of specific zones. Since ICU's zone table is based on the Olson
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* zones (the UNIX zones), and those change from time to time, this
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* test can fail after a zone table update. If that happens, the
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* selected zones need to be updated to have the behavior
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* expected. That is, they should have DST, not have DST, and have DST
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* -- other than that this test isn't picky. 12/3/99 aliu
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*
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* Test the behavior of SimpleTimeZone at the transition into and out of DST.
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* Use a stepwise march to find boundaries.
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*/
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void
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TimeZoneBoundaryTest::TestStepwise()
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{
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TimeZone *zone = TimeZone::createTimeZone("EST");
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findBoundariesStepwise(1997, ONE_DAY, zone, 2);
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delete zone;
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zone = TimeZone::createTimeZone("UTC"); // updated 12/3/99 aliu
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findBoundariesStepwise(1997, ONE_DAY, zone, 0);
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delete zone;
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zone = TimeZone::createTimeZone("Australia/Adelaide");
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findBoundariesStepwise(1997, ONE_DAY, zone, 2);
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delete zone;
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}
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