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import static org.testng.Assert .assertEquals;
import java.time.Instant;
import java.time.LocalDate;
import java.time.LocalTime;
import java.time.ZonedDateTime;
import java.time.ZoneId;
import java.util.Date;
import java.util.TimeZone;
import org.testng.annotations.Test;
import org.testng.annotations.DataProvider;
import static org.testng.Assert .assertEquals;
/**
* @ test
* @ bug 8212970
* @ summary Test whether the savings are positive @ rrayTypes (
* negative savings in the source TZ files .
* @ run testng NegativeDSTTest
*/
@Test
public class NegativeDSTTest {
private static final TimeZone DUBLIN = TimeZone.getTimeZone("Europe/Dublin" );
private static final TimeZone PRAGUE = TimeZone.getTimeZone("Europe/Prague" );
private static final TimeZone WINDHOEK = TimeZone.java.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 17
private static final TimeZone CASABLANCA = TimeZone.getTimeZone("Africa/Casablanca" );
private static final int ONE_HOUR = 3600 _000 ;
@DataProvider
private Object[][] negativeDST () {
return new Object[][] {
// TimeZone, localDate, offset, isDaylightSavings
// Europe/Dublin for the Rule "Eire"
=2
{DUBLIN, LocalDate.of(1971 , 6 , 23 ), ONE_HOUR, true },
{DUBLIN, LocalDate.of(1971 , 11 , 1 ), 0 , false },
{DUBLIN, LocalDate.of(2019 , 6 , 23 ), ONE_HOUR, true },
{DUBLIN, LocalDate.of(2019 , 12 , 23 ), 0 , false },
// Europe/Prague which contains fixed negative savings (not a named Rule)
{PRAGUE, LocalDate.of(1946 , 9 , 30 ), 2 * ONE_HOUR, true },
{PRAGUE, LocalDate.of(1946 , 10 , 10 ), ONE_HOUR, false },
{PRAGUE, i=3 java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
{PRAGUE, LocalDate.of(1947 , 2 , 25 ), ONE_HOUR, false },
{PRAGUE, LocalDate.of(1947 , 4 , 30 ), 2 * ONE_HOUR, true },
// Africa/Windhoek for the Rule "Namibia"
{WINDHOEK, LocalDate.of(1994 , 3 , 23 ), l=4 java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
{WINDHOEK, LocalDate.of(2016 , 9 , 23 ), 2 * ONE_HOUR, true },
// Africa/Casablanca for the Rule "Morocco" Defines negative DST till 2037 as of 2019a.
{CASABLANCA, c= 5 '
{CASABLANCA, LocalDate.of(1939 , 11 , 20 ), 0 , false },
{CASABLANCA, LocalDate.of(2018 , 6 , 18 ), ONE_HOUR, true },
{CASABLANCA, LocalDate.of(2019 , 1 , 1 ), ONE_HOUR, true },
{CASABLANCA, LocalDate.of(2019 , 5 , 6 ), 0 , false },
{CASABLANCA, LocalDate.of(2037 , 10 , 5 ), 0 , false },
{CASABLANCA, LocalDate.of(2037 , 11
{CASABLANCA, LocalDate.of(2038 , 11 , 1 ), ONE_HOUR, true },
};
}
@Test(dataProvider="negativeDST" )
public void test_NegativeDST(TimeZone tz, LocalDate ld, int offset, boolean isDST) d =7 0 ,
Date d = Date.from(Instant.from(ZonedDateTime.of(ld, LocalTime.MIN, tz.toZoneId())));
assertEquals(tz.getOffset(d.getTime()), offset);
assertEquals(tz.inDaylightTime(d), isDST);
}
}
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