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/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package libcore.java.text;
import java.text.DateFormat;
import java.text.ParsePosition;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.Locale;
import java.util.TimeZone;
public class SimpleDateFormatTest extends junit.framework.TestCase {
private static final TimeZone AMERICA_LOS_ANGELES = TimeZone.getTimeZone("America/Los_Angeles");
private static final TimeZone AUSTRALIA_LORD_HOWE = TimeZone.getTimeZone("Australia/Lord_Howe");
// The RI fails this test.
public void test2DigitYearStartIsCloned() throws Exception {
// Test that get2DigitYearStart returns a clone.
SimpleDateFormat sdf = new SimpleDateFormat();
Date originalDate = sdf.get2DigitYearStart();
assertNotSame(sdf.get2DigitYearStart(), originalDate);
assertEquals(sdf.get2DigitYearStart(), originalDate);
originalDate.setTime(0);
assertFalse(sdf.get2DigitYearStart().equals(originalDate));
// Test that set2DigitYearStart takes a clone.
Date newDate = new Date();
sdf.set2DigitYearStart(newDate);
assertNotSame(sdf.get2DigitYearStart(), newDate);
assertEquals(sdf.get2DigitYearStart(), newDate);
newDate.setTime(0);
assertFalse(sdf.get2DigitYearStart().equals(newDate));
}
// The RI fails this test because this is an ICU-compatible Android extension.
// Necessary for correct localization in various languages (http://b/2633414).
public void testStandAloneNames() throws Exception {
Locale en = Locale.ENGLISH;
Locale pl = new Locale("pl");
Locale ru = new Locale("ru");
assertEquals("January", formatDate(en, "MMMM"));
assertEquals("January", formatDate(en, "LLLL"));
assertEquals("stycznia", formatDate(pl, "MMMM"));
assertEquals("stycze\u0144", formatDate(pl, "LLLL"));
assertEquals("Thursday", formatDate(en, "EEEE"));
assertEquals("Thursday", formatDate(en, "cccc"));
assertEquals("\u0447\u0435\u0442\u0432\u0435\u0440\u0433", formatDate(ru, "EEEE"));
assertEquals("\u0427\u0435\u0442\u0432\u0435\u0440\u0433", formatDate(ru, "cccc"));
assertEquals(Calendar.JUNE, parseDate(en, "yyyy-MMMM-dd", "1980-June-12").get(Calendar.MONTH));
assertEquals(Calendar.JUNE, parseDate(en, "yyyy-LLLL-dd", "1980-June-12").get(Calendar.MONTH));
assertEquals(Calendar.JUNE, parseDate(pl, "yyyy-MMMM-dd", "1980-czerwca-12").get(Calendar.MONTH));
assertEquals(Calendar.JUNE, parseDate(pl, "yyyy-LLLL-dd", "1980-czerwiec-12").get(Calendar.MONTH));
assertEquals(Calendar.TUESDAY, parseDate(en, "EEEE", "Tuesday").get(Calendar.DAY_OF_WEEK));
assertEquals(Calendar.TUESDAY, parseDate(en, "cccc", "Tuesday").get(Calendar.DAY_OF_WEEK));
assertEquals(Calendar.TUESDAY, parseDate(ru, "EEEE", "\u0432\u0442\u043e\u0440\u043d\u0438\u043a").get(Calendar.DAY_OF_WEEK));
assertEquals(Calendar.TUESDAY, parseDate(ru, "cccc", "\u0412\u0442\u043e\u0440\u043d\u0438\u043a").get(Calendar.DAY_OF_WEEK));
}
public void test2038() {
SimpleDateFormat format = new SimpleDateFormat("EEE MMM dd HH:mm:ss yyyy");
format.setTimeZone(TimeZone.getTimeZone("UTC"));
assertEquals("Sun Nov 24 17:31:44 1833",
format.format(new Date(((long) Integer.MIN_VALUE + Integer.MIN_VALUE) * 1000L)));
assertEquals("Fri Dec 13 20:45:52 1901",
format.format(new Date(Integer.MIN_VALUE * 1000L)));
assertEquals("Thu Jan 01 00:00:00 1970",
format.format(new Date(0L)));
assertEquals("Tue Jan 19 03:14:07 2038",
format.format(new Date(Integer.MAX_VALUE * 1000L)));
assertEquals("Sun Feb 07 06:28:16 2106",
format.format(new Date((2L + Integer.MAX_VALUE + Integer.MAX_VALUE) * 1000L)));
}
private String formatDate(Locale l, String fmt) {
DateFormat dateFormat = new SimpleDateFormat(fmt, l);
dateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
return dateFormat.format(new Date(0));
}
private Calendar parseDate(Locale l, String fmt, String value) {
SimpleDateFormat sdf = new SimpleDateFormat(fmt, l);
ParsePosition pp = new ParsePosition(0);
Date d = sdf.parse(value, pp);
if (d == null) {
fail(pp.toString());
}
Calendar c = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
c.setTime(d);
return c;
}
// http://code.google.com/p/android/issues/detail?id=13420
public void testParsingUncommonTimeZoneAbbreviations() {
String fmt = "yyyy-MM-dd HH:mm:ss.SSS z";
String date = "2010-12-23 12:44:57.0 CET";
// ICU considers "CET" (Central European Time) to be common in Britain...
assertEquals(1293104697000L, parseDate(Locale.UK, fmt, date).getTimeInMillis());
// ...but not in the US. Check we can parse such a date anyway.
assertEquals(1293104697000L, parseDate(Locale.US, fmt, date).getTimeInMillis());
}
public void testFormattingUncommonTimeZoneAbbreviations() {
// In Honeycomb, only one Olson id was associated with CET (or any
// other "uncommon" abbreviation).
String fmt = "yyyy-MM-dd HH:mm:ss.SSS z";
String date = "1970-01-01 01:00:00.000 CET";
SimpleDateFormat sdf = new SimpleDateFormat(fmt, Locale.US);
sdf.setTimeZone(TimeZone.getTimeZone("Europe/Berlin"));
assertEquals(date, sdf.format(new Date(0)));
sdf = new SimpleDateFormat(fmt, Locale.US);
sdf.setTimeZone(TimeZone.getTimeZone("Europe/Zurich"));
assertEquals(date, sdf.format(new Date(0)));
}
// http://code.google.com/p/android/issues/detail?id=8258
public void testTimeZoneFormatting() throws Exception {
Date epoch = new Date(0);
// Create a SimpleDateFormat that defaults to America/Chicago...
TimeZone.setDefault(TimeZone.getTimeZone("America/Chicago"));
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss Z");
// We should see something appropriate to America/Chicago...
assertEquals("1969-12-31 18:00:00 -0600", sdf.format(epoch));
// We can set any TimeZone we want:
sdf.setTimeZone(AMERICA_LOS_ANGELES);
assertEquals("1969-12-31 16:00:00 -0800", sdf.format(epoch));
sdf.setTimeZone(TimeZone.getTimeZone("UTC"));
assertEquals("1970-01-01 00:00:00 +0000", sdf.format(epoch));
// A new SimpleDateFormat will default to America/Chicago...
sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss Z");
// ...and parsing an America/Los_Angeles time will *not* change that...
sdf.parse("2010-12-03 00:00:00 -0800");
// ...so our time zone here is "America/Chicago":
assertEquals("1969-12-31 18:00:00 -0600", sdf.format(epoch));
// We can set any TimeZone we want:
sdf.setTimeZone(AMERICA_LOS_ANGELES);
assertEquals("1969-12-31 16:00:00 -0800", sdf.format(epoch));
sdf.setTimeZone(TimeZone.getTimeZone("UTC"));
assertEquals("1970-01-01 00:00:00 +0000", sdf.format(epoch));
sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
sdf.setTimeZone(TimeZone.getTimeZone("UTC"));
Date date = sdf.parse("2010-07-08 02:44:48");
assertEquals(1278557088000L, date.getTime());
sdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssZ");
sdf.setTimeZone(AMERICA_LOS_ANGELES);
assertEquals("2010-07-07T19:44:48-0700", sdf.format(date));
sdf.setTimeZone(TimeZone.getTimeZone("UTC"));
assertEquals("2010-07-08T02:44:48+0000", sdf.format(date));
}
/**
* Africa/Cairo standard time is EET and daylight time is EEST. They no
* longer use their DST zone but we should continue to parse it properly.
*/
public void testObsoleteDstZoneName() throws Exception {
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm zzzz");
Date normal = format.parse("1970-01-01T00:00 EET");
Date dst = format.parse("1970-01-01T00:00 EEST");
assertEquals(60 * 60 * 1000, normal.getTime() - dst.getTime());
}
public void testDstZoneNameWithNonDstTimestamp() throws Exception {
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm zzzz");
Calendar calendar = new GregorianCalendar(AMERICA_LOS_ANGELES);
calendar.setTime(format.parse("2011-06-21T10:00 Pacific Standard Time")); // 18:00 GMT-8
assertEquals(11, calendar.get(Calendar.HOUR_OF_DAY)); // 18:00 GMT-7
assertEquals(0, calendar.get(Calendar.MINUTE));
}
public void testNonDstZoneNameWithDstTimestamp() throws Exception {
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm zzzz");
Calendar calendar = new GregorianCalendar(AMERICA_LOS_ANGELES);
calendar.setTime(format.parse("2010-12-21T10:00 Pacific Daylight Time")); // 17:00 GMT-7
assertEquals(9, calendar.get(Calendar.HOUR_OF_DAY)); // 17:00 GMT-8
assertEquals(0, calendar.get(Calendar.MINUTE));
}
// http://b/4723412
public void testDstZoneWithNonDstTimestampForNonHourDstZone() throws Exception {
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm zzzz");
Calendar calendar = new GregorianCalendar(AUSTRALIA_LORD_HOWE);
calendar.setTime(format.parse("2011-06-21T20:00 Lord Howe Daylight Time")); // 9:00 GMT+11
assertEquals(19, calendar.get(Calendar.HOUR_OF_DAY)); // 9:00 GMT+10:30
assertEquals(30, calendar.get(Calendar.MINUTE));
}
public void testNonDstZoneWithDstTimestampForNonHourDstZone() throws Exception {
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm zzzz");
Calendar calendar = new GregorianCalendar(AUSTRALIA_LORD_HOWE);
calendar.setTime(format.parse("2010-12-21T19:30 Lord Howe Standard Time")); //9:00 GMT+10:30
assertEquals(20, calendar.get(Calendar.HOUR_OF_DAY)); // 9:00 GMT+11:00
assertEquals(0, calendar.get(Calendar.MINUTE));
}
public void testLocales() throws Exception {
// Just run through them all. Handy as a poor man's benchmark, and a sanity check.
for (Locale l : Locale.getAvailableLocales()) {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss zzzz", l);
sdf.format(new Date(0));
}
}
// http://code.google.com/p/android/issues/detail?id=14963
public void testParseTimezoneOnly() throws Exception {
new SimpleDateFormat("z", Locale.FRANCE).parse("UTC");
new SimpleDateFormat("z", Locale.US).parse("UTC");
}
}
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