Java tutorial
/* =========================================================== * JFreeChart : a free chart library for the Java(tm) platform * =========================================================== * * (C) Copyright 2000-2012, by Object Refinery Limited and Contributors. * * Project Info: http://www.jfree.org/jfreechart/index.html * * This library is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation; either version 2.1 of the License, or * (at your option) any later version. * * This library is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public * License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, * USA. * * [Oracle and Java are registered trademarks of Oracle and/or its affiliates. * Other names may be trademarks of their respective owners.] * * ---------------- * SecondTests.java * ---------------- * (C) Copyright 2002-2009, by Object Refinery Limited. * * Original Author: David Gilbert (for Object Refinery Limited); * Contributor(s): -; * * Changes * ------- * 29-Jan-2002 : Version 1 (DG); * 17-Oct-2002 : Fixed errors reported by Checkstyle (DG); * 13-Oct-2003 : Added serialization test (DG); * 11-Jan-2005 : Added test for non-clonability (DG); * 06-Oct-2006 : Added some new tests (DG); * 11-Jul-2007 : Fixed bad time zone assumption (DG); * */ package org.jfree.data.time.junit; import java.io.ByteArrayInputStream; import java.io.ByteArrayOutputStream; import java.io.ObjectInput; import java.io.ObjectInputStream; import java.io.ObjectOutput; import java.io.ObjectOutputStream; import java.util.Calendar; import java.util.Date; import java.util.GregorianCalendar; import java.util.Locale; import java.util.TimeZone; import junit.framework.Test; import junit.framework.TestCase; import junit.framework.TestSuite; import org.jfree.chart.date.MonthConstants; import org.jfree.data.time.Day; import org.jfree.data.time.Hour; import org.jfree.data.time.Minute; import org.jfree.data.time.Second; /** * Tests for the {@link Second} class. */ public class SecondTest extends TestCase { /** * Returns the tests as a test suite. * * @return The test suite. */ public static Test suite() { return new TestSuite(SecondTest.class); } /** * Constructs a new set of tests. * * @param name the name of the tests. */ public SecondTest(String name) { super(name); } /** * Common test setup. */ @Override protected void setUp() { // no setup } /** * Test that a Second instance is equal to itself. * * SourceForge Bug ID: 558850. */ public void testEqualsSelf() { Second second = new Second(); assertTrue(second.equals(second)); } /** * Tests the equals method. */ public void testEquals() { Day day1 = new Day(29, MonthConstants.MARCH, 2002); Hour hour1 = new Hour(15, day1); Minute minute1 = new Minute(15, hour1); Second second1 = new Second(34, minute1); Day day2 = new Day(29, MonthConstants.MARCH, 2002); Hour hour2 = new Hour(15, day2); Minute minute2 = new Minute(15, hour2); Second second2 = new Second(34, minute2); assertTrue(second1.equals(second2)); } /** * In GMT, the 4.55:59pm on 21 Mar 2002 is java.util.Date(1016729759000L). * Use this to check the Second constructor. */ public void testDateConstructor1() { TimeZone zone = TimeZone.getTimeZone("GMT"); Calendar c = new GregorianCalendar(zone); Locale locale = Locale.getDefault(); // locale shouldn't matter here Second s1 = new Second(new Date(1016729758999L), zone, locale); Second s2 = new Second(new Date(1016729759000L), zone, locale); assertEquals(58, s1.getSecond()); assertEquals(1016729758999L, s1.getLastMillisecond(c)); assertEquals(59, s2.getSecond()); assertEquals(1016729759000L, s2.getFirstMillisecond(c)); } /** * In Chicago, the 4.55:59pm on 21 Mar 2002 is * java.util.Date(1016751359000L). Use this to check the Second constructor. */ public void testDateConstructor2() { TimeZone zone = TimeZone.getTimeZone("America/Chicago"); Calendar c = new GregorianCalendar(zone); Locale locale = Locale.getDefault(); // locale shouldn't matter here Second s1 = new Second(new Date(1016751358999L), zone, locale); Second s2 = new Second(new Date(1016751359000L), zone, locale); assertEquals(58, s1.getSecond()); assertEquals(1016751358999L, s1.getLastMillisecond(c)); assertEquals(59, s2.getSecond()); assertEquals(1016751359000L, s2.getFirstMillisecond(c)); } /** * Serialize an instance, restore it, and check for equality. */ public void testSerialization() { Second s1 = new Second(); Second s2 = null; try { ByteArrayOutputStream buffer = new ByteArrayOutputStream(); ObjectOutput out = new ObjectOutputStream(buffer); out.writeObject(s1); out.close(); ObjectInput in = new ObjectInputStream(new ByteArrayInputStream(buffer.toByteArray())); s2 = (Second) in.readObject(); in.close(); } catch (Exception e) { e.printStackTrace(); } assertEquals(s1, s2); } /** * Two objects that are equal are required to return the same hashCode. */ public void testHashcode() { Second s1 = new Second(13, 45, 5, 1, 2, 2003); Second s2 = new Second(13, 45, 5, 1, 2, 2003); assertTrue(s1.equals(s2)); int h1 = s1.hashCode(); int h2 = s2.hashCode(); assertEquals(h1, h2); } /** * The {@link Second} class is immutable, so should not be * {@link Cloneable}. */ public void testNotCloneable() { Second s = new Second(13, 45, 5, 1, 2, 2003); assertFalse(s instanceof Cloneable); } /** * Some checks for the getFirstMillisecond() method. */ public void testGetFirstMillisecond() { Locale saved = Locale.getDefault(); Locale.setDefault(Locale.UK); TimeZone savedZone = TimeZone.getDefault(); TimeZone.setDefault(TimeZone.getTimeZone("Europe/London")); Second s = new Second(15, 43, 15, 1, 4, 2006); assertEquals(1143902595000L, s.getFirstMillisecond()); Locale.setDefault(saved); TimeZone.setDefault(savedZone); } /** * Some checks for the getFirstMillisecond(TimeZone) method. */ public void testGetFirstMillisecondWithTimeZone() { Second s = new Second(50, 59, 15, 1, 4, 1950); TimeZone zone = TimeZone.getTimeZone("America/Los_Angeles"); Calendar c = new GregorianCalendar(zone); assertEquals(-623289610000L, s.getFirstMillisecond(c)); // try null calendar boolean pass = false; try { s.getFirstMillisecond((Calendar) null); } catch (NullPointerException e) { pass = true; } assertTrue(pass); } /** * Some checks for the getFirstMillisecond(TimeZone) method. */ public void testGetFirstMillisecondWithCalendar() { Second s = new Second(55, 40, 2, 15, 4, 2000); GregorianCalendar calendar = new GregorianCalendar(Locale.GERMANY); calendar.setTimeZone(TimeZone.getTimeZone("Europe/Frankfurt")); assertEquals(955766455000L, s.getFirstMillisecond(calendar)); // try null calendar boolean pass = false; try { s.getFirstMillisecond((Calendar) null); } catch (NullPointerException e) { pass = true; } assertTrue(pass); } /** * Some checks for the getLastMillisecond() method. */ public void testGetLastMillisecond() { Locale saved = Locale.getDefault(); Locale.setDefault(Locale.UK); TimeZone savedZone = TimeZone.getDefault(); TimeZone.setDefault(TimeZone.getTimeZone("Europe/London")); Second s = new Second(1, 1, 1, 1, 1, 1970); assertEquals(61999L, s.getLastMillisecond()); Locale.setDefault(saved); TimeZone.setDefault(savedZone); } /** * Some checks for the getLastMillisecond(TimeZone) method. */ public void testGetLastMillisecondWithTimeZone() { Second s = new Second(55, 1, 2, 7, 7, 1950); TimeZone zone = TimeZone.getTimeZone("America/Los_Angeles"); Calendar c = new GregorianCalendar(zone); assertEquals(-614962684001L, s.getLastMillisecond(c)); // try null calendar boolean pass = false; try { s.getLastMillisecond((Calendar) null); } catch (NullPointerException e) { pass = true; } assertTrue(pass); } /** * Some checks for the getLastMillisecond(TimeZone) method. */ public void testGetLastMillisecondWithCalendar() { Second s = new Second(50, 45, 21, 21, 4, 2001); GregorianCalendar calendar = new GregorianCalendar(Locale.GERMANY); calendar.setTimeZone(TimeZone.getTimeZone("Europe/Frankfurt")); assertEquals(987889550999L, s.getLastMillisecond(calendar)); // try null calendar boolean pass = false; try { s.getLastMillisecond((Calendar) null); } catch (NullPointerException e) { pass = true; } assertTrue(pass); } /** * Some checks for the getSerialIndex() method. */ public void testGetSerialIndex() { Second s = new Second(1, 1, 1, 1, 1, 2000); assertEquals(3155850061L, s.getSerialIndex()); s = new Second(1, 1, 1, 1, 1, 1900); assertEquals(176461L, s.getSerialIndex()); } /** * Some checks for the testNext() method. */ public void testNext() { Second s = new Second(55, 30, 1, 12, 12, 2000); s = (Second) s.next(); assertEquals(2000, s.getMinute().getHour().getYear()); assertEquals(12, s.getMinute().getHour().getMonth()); assertEquals(12, s.getMinute().getHour().getDayOfMonth()); assertEquals(1, s.getMinute().getHour().getHour()); assertEquals(30, s.getMinute().getMinute()); assertEquals(56, s.getSecond()); s = new Second(59, 59, 23, 31, 12, 9999); assertNull(s.next()); } /** * Some checks for the getStart() method. */ public void testGetStart() { Locale saved = Locale.getDefault(); Locale.setDefault(Locale.ITALY); Calendar cal = Calendar.getInstance(Locale.ITALY); cal.set(2006, Calendar.JANUARY, 16, 3, 47, 55); cal.set(Calendar.MILLISECOND, 0); Second s = new Second(55, 47, 3, 16, 1, 2006); assertEquals(cal.getTime(), s.getStart()); Locale.setDefault(saved); } /** * Some checks for the getEnd() method. */ public void testGetEnd() { Locale saved = Locale.getDefault(); Locale.setDefault(Locale.ITALY); Calendar cal = Calendar.getInstance(Locale.ITALY); cal.set(2006, Calendar.JANUARY, 16, 3, 47, 55); cal.set(Calendar.MILLISECOND, 999); Second s = new Second(55, 47, 3, 16, 1, 2006); assertEquals(cal.getTime(), s.getEnd()); Locale.setDefault(saved); } }