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/**
* @test
* @bug 7130335 7130335
* @summary Make sure that round-trip conversion (format/parse) works
* with old timestamps in Europe/Moscow and with multiple time zone letters.
*/
import java.text.*;
import java.util.*;
import static java.util.GregorianCalendar.*;
public class Bug7130335 {
private static final TimeZone MOSCOW = TimeZone.getTimeZone("Europe/Moscow");
private static final TimeZone LONDON = TimeZone.getTimeZone("Europe/London");
private static final TimeZone LA = TimeZone.getTimeZone("America/Los_Angeles");
private static final TimeZone[] ZONES = {
MOSCOW, LONDON, LA
};
public static void main(String[] args) throws Exception {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS z", Locale.US);
sdf.setTimeZone(MOSCOW);
Calendar cal = new GregorianCalendar(MOSCOW, Locale.US);
cal.clear();
// Try both +03:00 and +02:00
cal.set(1922, SEPTEMBER, 30);
test(sdf, cal);
cal.add(DAY_OF_YEAR, 1);
test(sdf, cal);
cal.set(1991, MARCH, 31);
// in daylight saving time
test(sdf, cal);
cal.add(DAY_OF_YEAR, 1);
test(sdf, cal);
// Try the current timestamp
cal.setTimeInMillis(System.currentTimeMillis());
test(sdf, cal);
// tests for multiple time zone letters (8000529)
test8000529("yyyy-MM-dd HH:mm:ss.SSS Z (z)");
test8000529("yyyy-MM-dd HH:mm:ss.SSS Z (zzzz)");
test8000529("yyyy-MM-dd HH:mm:ss.SSS z (Z)");
test8000529("yyyy-MM-dd HH:mm:ss.SSS zzzz (Z)");
}
private static void test(SimpleDateFormat sdf, Calendar cal) throws Exception {
Date d = cal.getTime();
String f = sdf.format(d);
System.out.println(f);
Date pd = sdf.parse(f);
String p = sdf.format(pd);
if (!d.equals(pd) || !f.equals(p)) {
throw new RuntimeException("format: " + f + ", parse: " + p);
}
}
private static void test8000529(String fmt) throws Exception {
for (TimeZone tz : ZONES) {
SimpleDateFormat sdf = new SimpleDateFormat(fmt, Locale.US);
sdf.setTimeZone(tz);
Calendar cal = new GregorianCalendar(tz, Locale.US);
cal.clear();
cal.set(2012, JUNE, 22);
test(sdf, cal);
cal.set(2012, DECEMBER, 22);
test(sdf, cal);
cal.setTimeInMillis(System.currentTimeMillis());
test(sdf, cal);
}
}
}