118 lines
5.0 KiB
Java
118 lines
5.0 KiB
Java
/*
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* Copyright (c) 2005, 2024, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 4296930 5033603 7092679
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* @summary Ensure that Java detects the platform time zone correctly, even
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* if changed during runtime. Also ensure that the system time zone detection code
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* detects the "Automatically adjust clock for daylight saving changes" setting
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* correctly on Windows. This is a manual test dependent on making changes to
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* the platform setting of the machine and thus cannot be automated.
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* @library /java/awt/regtesthelpers
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* @build PassFailJFrame
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* @run main/manual DefaultTimeZoneTest
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*/
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import javax.swing.JButton;
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import javax.swing.JFrame;
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import javax.swing.JLabel;
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import javax.swing.JPanel;
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import java.awt.BorderLayout;
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import java.awt.Window;
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import java.lang.reflect.InvocationTargetException;
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import java.text.SimpleDateFormat;
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import java.util.Date;
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import java.util.TimeZone;
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public class DefaultTimeZoneTest {
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private static final SimpleDateFormat SDF =
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new SimpleDateFormat("yyyy-MM-dd HH:mm:ss zzzz (XXX)");
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private static final String INSTRUCTIONS =
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"""
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Tests the platform time zone detection on all platforms.
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(Part I) and on/off of DST adjustment on Windows (Part II).
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Part I:
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Observe the displayed Time zone ID and the local time.
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Change the platform time zone setting, then click the
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"Update Time Zone" button. If the ID and local time
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update correctly, part I passes, otherwise press fail. Note that
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some time zone IDs have their aliases that may be displayed.
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For example, "US/Pacific" is an alias of "America/Los_Angeles".
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If this platform is Windows, proceed to Part II. Otherwise, press
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the Pass button to complete this test.
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Part II:
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Note that Part II may require the Administrator privilege to change
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Windows setting.
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1. Open the Settings app and navigate to Time & Language > Date & Time
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2. Select any time zone where daylight saving time is *currently*
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in effect, such as "(GMT-08:00) Pacific Time (US & Canada);
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Tijuana", "(GMT+10:00) Canberra, Melbourne, Sydney", and Apply.
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3. After pressing "Update Time Zone" button, observe that the local
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time on the Settings app and the test local time are the same (daylight time).
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4. Turn off "Adjust for daylight saving time automatically"
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5. Observe the two local times should be the same (standard time).
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6. Turn on "Adjust for daylight saving time automatically"
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If the local time in the Settings app and test window are always the same,
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then this test passes. Press the Pass or Fail button based on the Part II
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result and complete the test.
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""";
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public static void main(String[] args)
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throws InterruptedException, InvocationTargetException {
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// Force platform time zone as default time zone
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TimeZone.setDefault(null);
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System.setProperty("user.timezone", "");
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// Construct test window
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PassFailJFrame.builder()
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.title("DefaultTimeZoneTest Instructions")
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.testUI(createTest())
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.instructions(INSTRUCTIONS)
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.build().awaitAndCheck();
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}
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private static Window createTest() {
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var contents = new JFrame("DefaultTimeZoneTest");
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var label = new JLabel(SDF.format(new Date()));
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var panel = new JPanel();
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var button = new JButton("Update Time Zone");
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panel.add(button);
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contents.setSize(350, 250);
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contents.add(label, BorderLayout.NORTH);
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contents.add(panel, BorderLayout.CENTER);
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// Update default time zone on button click
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button.addActionListener(e -> {
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TimeZone tz = TimeZone.getDefault();
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SDF.setTimeZone(tz);
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label.setText(SDF.format(new Date()));
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contents.repaint();
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});
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return contents;
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}
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}
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