/*
* Copyright 2008 Google Inc.
*
* 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 com.google.gwt.i18n.client;
import com.google.gwt.core.client.GWT;
import com.google.gwt.i18n.client.DateTimeFormat.PredefinedFormat;
import com.google.gwt.i18n.client.constants.TimeZoneConstants;
import com.google.gwt.junit.client.GWTTestCase;
import java.util.Date;
/**
* Tests TimeZone facilities.
*/
public class TimeZoneTest extends GWTTestCase {
@Override
public String getModuleName() {
return "com.google.gwt.i18n.TimeZoneTest";
}
public void testGetters() {
final TimeZoneConstants timeZoneConstants = GWT.create(TimeZoneConstants.class);
TimeZone usPacific =
TimeZone.createTimeZone(TimeZoneInfo.buildTimeZoneData(timeZoneConstants.americaLosAngeles()));
assertEquals(480, usPacific.getStandardOffset());
assertEquals("America/Los_Angeles", usPacific.getID());
}
public void testIsDaylightTime() {
// All times in this test are in Los Angeles.
// We especially want to test time around daylight time switch.
// In 2007, the switch in Pacific time zone happens in 3/11 and 11/4.
// We create the dates with fmt.parse because this allows us to specify
// the time zone to which they pertain -- trying to create them by
// directly manipulating Date objects was making our tests fail when run in
// timezones outside of California.
TimeZoneConstants timeZoneData = GWT.create(TimeZoneConstants.class);
String str = timeZoneData.americaLosAngeles();
TimeZone usPacific = TimeZone.createTimeZone(TimeZoneInfo.buildTimeZoneData(str));
DateTimeFormat fmt = DateTimeFormat.getFormat(PredefinedFormat.DATE_TIME_LONG);
Date dateMarchBefore = fmt.parse("March 11, 2007 at 01:00:00 AM GMT-800");
Date dateMarchAfter = fmt.parse("March 11, 2007 at 03:01:00 AM GMT-800");
Date dateJuly = fmt.parse("July 11, 2007 at 07:00:00 AM GMT-800");
Date dateNovemberBefore = fmt.parse("November 4, 2007 at 00:00:00 AM GMT-800");
Date dateNovemberAfter = fmt.parse("November 4, 2007 at 02:00:00 AM GMT-800");
assertTrue("July should be DST.", usPacific.isDaylightTime(dateJuly));
assertTrue("Late March should be DST", usPacific.isDaylightTime(dateMarchAfter));
assertTrue("Early March should not be DST", !usPacific.isDaylightTime(dateMarchBefore));
assertTrue("Late November should not be DST", !usPacific.isDaylightTime(dateNovemberAfter));
assertTrue("Early November should be DST", usPacific.isDaylightTime(dateNovemberBefore));
}
@SuppressWarnings("deprecation")
public void testNames() {
final TimeZoneConstants timeZoneConstants = GWT.create(TimeZoneConstants.class);
TimeZone usPacific = TimeZone.createTimeZone(
TimeZoneInfo.buildTimeZoneData(timeZoneConstants.americaLosAngeles()));
Date dt = new Date(2007 - 1900, 7 - 1, 1);
assertTrue(usPacific.isDaylightTime(dt));
assertEquals("PDT", usPacific.getShortName(dt));
assertEquals("Pacific Daylight Time", usPacific.getLongName(dt));
dt = new Date(2007 - 1900, 12 - 1, 1);
assertTrue(!usPacific.isDaylightTime(dt));
assertEquals("PST", usPacific.getShortName(dt));
assertEquals("Pacific Standard Time", usPacific.getLongName(dt));
}
public void testSimpleTimeZoneNegative() {
Date date = new Date();
TimeZone simpleTimeZone = TimeZone.createTimeZone(-480);
assertEquals(-480, simpleTimeZone.getOffset(date));
assertEquals(-480, simpleTimeZone.getStandardOffset());
assertEquals("GMT+08:00", simpleTimeZone.getGMTString(date));
assertEquals("Etc/GMT-8", simpleTimeZone.getID());
assertEquals("UTC+8", simpleTimeZone.getLongName(date));
assertEquals("UTC+8", simpleTimeZone.getShortName(date));
assertEquals("+0800", simpleTimeZone.getRFCTimeZoneString(date));
assertEquals(false, simpleTimeZone.isDaylightTime(date));
}
public void testSimpleTimeZonePositive() {
Date date = new Date();
TimeZone simpleTimeZone = TimeZone.createTimeZone(480);
assertEquals(480, simpleTimeZone.getOffset(date));
assertEquals(480, simpleTimeZone.getStandardOffset());
assertEquals("GMT-08:00", simpleTimeZone.getGMTString(date));
assertEquals("Etc/GMT+8", simpleTimeZone.getID());
assertEquals("UTC-8", simpleTimeZone.getLongName(date));
assertEquals("UTC-8", simpleTimeZone.getShortName(date));
assertEquals("-0800", simpleTimeZone.getRFCTimeZoneString(date));
assertEquals(false, simpleTimeZone.isDaylightTime(date));
// check half-hour time zone offset.
simpleTimeZone = TimeZone.createTimeZone(630);
assertEquals(630, simpleTimeZone.getOffset(date));
assertEquals(630, simpleTimeZone.getStandardOffset());
assertEquals("GMT-10:30", simpleTimeZone.getGMTString(date));
assertEquals("Etc/GMT+10:30", simpleTimeZone.getID());
assertEquals("UTC-10:30", simpleTimeZone.getLongName(date));
assertEquals("UTC-10:30", simpleTimeZone.getShortName(date));
assertEquals("-1030", simpleTimeZone.getRFCTimeZoneString(date));
assertEquals(false, simpleTimeZone.isDaylightTime(date));
}
public void testSimpleTimeZoneZero() {
Date date = new Date();
TimeZone simpleTimeZone = TimeZone.createTimeZone(0);
assertEquals(0, simpleTimeZone.getOffset(date));
assertEquals(0, simpleTimeZone.getStandardOffset());
assertEquals("GMT+00:00", simpleTimeZone.getGMTString(date));
assertEquals("Etc/GMT", simpleTimeZone.getID());
assertEquals("UTC", simpleTimeZone.getLongName(date));
assertEquals("UTC", simpleTimeZone.getShortName(date));
assertEquals("+0000", simpleTimeZone.getRFCTimeZoneString(date));
assertEquals(false, simpleTimeZone.isDaylightTime(date));
}
}