Java tutorial
/* =========================================================== * JFreeChart : a free chart library for the Java(tm) platform * =========================================================== * * (C) Copyright 2000-2013, 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.] * * --------------- * MinuteTest.java * --------------- * (C) Copyright 2002-2013, 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-Mar-2003 : Added serialization test (DG); * 21-Oct-2003 : Added hashCode test (DG); * 11-Jan-2005 : Added test for non-clonability (DG); * 05-Oct-2006 : Added new tests (DG); * 11-Dec-2006 : Added test1611872() (DG); * 11-Jul-2007 : Fixed bad time zone assumption (DG); * */ package org.jfree.data.time; import static org.junit.Assert.assertTrue; import static org.junit.Assert.assertFalse; import static org.junit.Assert.assertEquals; import static org.junit.Assert.assertNull; import java.util.Calendar; import java.util.Date; import java.util.GregorianCalendar; import java.util.Locale; import java.util.TimeZone; import org.jfree.chart.TestUtilities; import org.jfree.date.MonthConstants; import org.junit.Test; /** * Tests for the {@link Minute} class. */ public class MinuteTest { /** * Check that a Minute instance is equal to itself. * * SourceForge Bug ID: 558850. */ @Test public void testEqualsSelf() { Minute minute = new Minute(); assertTrue(minute.equals(minute)); } /** * Tests the equals method. */ @Test public void testEquals() { Day day1 = new Day(29, MonthConstants.MARCH, 2002); Hour hour1 = new Hour(15, day1); Minute minute1 = new Minute(15, hour1); Day day2 = new Day(29, MonthConstants.MARCH, 2002); Hour hour2 = new Hour(15, day2); Minute minute2 = new Minute(15, hour2); assertTrue(minute1.equals(minute2)); } /** * In GMT, the 4.55pm on 21 Mar 2002 is java.util.Date(1016729700000L). * Use this to check the Minute constructor. */ @Test public void testDateConstructor1() { TimeZone zone = TimeZone.getTimeZone("GMT"); Locale locale = Locale.getDefault(); // locale should not matter here Minute m1 = new Minute(new Date(1016729699999L), zone, locale); Minute m2 = new Minute(new Date(1016729700000L), zone, locale); assertEquals(54, m1.getMinute()); assertEquals(1016729699999L, m1.getLastMillisecond(zone)); assertEquals(55, m2.getMinute()); assertEquals(1016729700000L, m2.getFirstMillisecond(zone)); } /** * In Singapore, the 4.55pm on 21 Mar 2002 is * java.util.Date(1,014,281,700,000L). Use this to check the Minute * constructor. */ @Test public void testDateConstructor2() { TimeZone zone = TimeZone.getTimeZone("Asia/Singapore"); Locale locale = Locale.getDefault(); // locale should not matter here Minute m1 = new Minute(new Date(1016700899999L), zone, locale); Minute m2 = new Minute(new Date(1016700900000L), zone, locale); assertEquals(54, m1.getMinute()); assertEquals(1016700899999L, m1.getLastMillisecond(zone)); assertEquals(55, m2.getMinute()); assertEquals(1016700900000L, m2.getFirstMillisecond(zone)); } /** * Serialize an instance, restore it, and check for equality. */ @Test public void testSerialization() { Minute m1 = new Minute(); Minute m2 = (Minute) TestUtilities.serialised(m1); assertEquals(m1, m2); } /** * Two objects that are equal are required to return the same hashCode. */ @Test public void testHashcode() { Minute m1 = new Minute(45, 5, 1, 2, 2003); Minute m2 = new Minute(45, 5, 1, 2, 2003); assertTrue(m1.equals(m2)); int h1 = m1.hashCode(); int h2 = m2.hashCode(); assertEquals(h1, h2); } /** * The {@link Minute} class is immutable, so should not be * {@link Cloneable}. */ @Test public void testNotCloneable() { Minute m = new Minute(45, 5, 1, 2, 2003); assertFalse(m instanceof Cloneable); } /** * Some checks for the getFirstMillisecond() method. */ @Test public void testGetFirstMillisecond() { Locale saved = Locale.getDefault(); Locale.setDefault(Locale.UK); TimeZone savedZone = TimeZone.getDefault(); TimeZone.setDefault(TimeZone.getTimeZone("Europe/London")); Minute m = new Minute(43, 15, 1, 4, 2006); assertEquals(1143902580000L, m.getFirstMillisecond()); Locale.setDefault(saved); TimeZone.setDefault(savedZone); } /** * Some checks for the getFirstMillisecond(TimeZone) method. */ @Test public void testGetFirstMillisecondWithTimeZone() { Minute m = new Minute(59, 15, 1, 4, 1950); TimeZone zone = TimeZone.getTimeZone("America/Los_Angeles"); assertEquals(-623289660000L, m.getFirstMillisecond(zone)); // try null calendar boolean pass = false; try { m.getFirstMillisecond((TimeZone) null); } catch (NullPointerException e) { pass = true; } assertTrue(pass); } /** * Some checks for the getFirstMillisecond(TimeZone) method. */ @Test public void testGetFirstMillisecondWithCalendar() { Minute m = new Minute(40, 2, 15, 4, 2000); GregorianCalendar calendar = new GregorianCalendar(Locale.GERMANY); calendar.setTimeZone(TimeZone.getTimeZone("Europe/Frankfurt")); assertEquals(955766400000L, m.getFirstMillisecond(calendar)); // try null calendar boolean pass = false; try { m.getFirstMillisecond((Calendar) null); } catch (NullPointerException e) { pass = true; } assertTrue(pass); } /** * Some checks for the getLastMillisecond() method. */ @Test public void testGetLastMillisecond() { Locale saved = Locale.getDefault(); Locale.setDefault(Locale.UK); TimeZone savedZone = TimeZone.getDefault(); TimeZone.setDefault(TimeZone.getTimeZone("Europe/London")); Minute m = new Minute(1, 1, 1, 1, 1970); assertEquals(119999L, m.getLastMillisecond()); Locale.setDefault(saved); TimeZone.setDefault(savedZone); } /** * Some checks for the getLastMillisecond(TimeZone) method. */ @Test public void testGetLastMillisecondWithTimeZone() { Minute m = new Minute(1, 2, 7, 7, 1950); TimeZone zone = TimeZone.getTimeZone("America/Los_Angeles"); assertEquals(-614962680001L, m.getLastMillisecond(zone)); // try null calendar boolean pass = false; try { m.getLastMillisecond((TimeZone) null); } catch (NullPointerException e) { pass = true; } assertTrue(pass); } /** * Some checks for the getLastMillisecond(TimeZone) method. */ @Test public void testGetLastMillisecondWithCalendar() { Minute m = new Minute(45, 21, 21, 4, 2001); GregorianCalendar calendar = new GregorianCalendar(Locale.GERMANY); calendar.setTimeZone(TimeZone.getTimeZone("Europe/Frankfurt")); assertEquals(987889559999L, m.getLastMillisecond(calendar)); // try null calendar boolean pass = false; try { m.getLastMillisecond((Calendar) null); } catch (NullPointerException e) { pass = true; } assertTrue(pass); } /** * Some checks for the getSerialIndex() method. */ @Test public void testGetSerialIndex() { Minute m = new Minute(1, 1, 1, 1, 2000); assertEquals(52597501L, m.getSerialIndex()); m = new Minute(1, 1, 1, 1, 1900); assertEquals(2941L, m.getSerialIndex()); } /** * Some checks for the testNext() method. */ @Test public void testNext() { Minute m = new Minute(30, 1, 12, 12, 2000); m = (Minute) m.next(); assertEquals(2000, m.getHour().getYear()); assertEquals(12, m.getHour().getMonth()); assertEquals(12, m.getHour().getDayOfMonth()); assertEquals(1, m.getHour().getHour()); assertEquals(31, m.getMinute()); m = new Minute(59, 23, 31, 12, 9999); assertNull(m.next()); } /** * Some checks for the getStart() method. */ @Test public void testGetStart() { Locale saved = Locale.getDefault(); Locale.setDefault(Locale.ITALY); TimeZone savedZone = TimeZone.getDefault(); TimeZone.setDefault(TimeZone.getTimeZone("Europe/Rome")); Calendar cal = Calendar.getInstance(Locale.ITALY); cal.set(2006, Calendar.JANUARY, 16, 3, 47, 0); cal.set(Calendar.MILLISECOND, 0); Minute m = new Minute(47, 3, 16, 1, 2006); assertEquals(cal.getTime(), m.getStart()); Locale.setDefault(saved); TimeZone.setDefault(savedZone); } /** * Some checks for the getEnd() method. */ @Test public void testGetEnd() { Locale saved = Locale.getDefault(); Locale.setDefault(Locale.ITALY); TimeZone savedZone = TimeZone.getDefault(); TimeZone.setDefault(TimeZone.getTimeZone("Europe/Rome")); Calendar cal = Calendar.getInstance(Locale.ITALY); cal.set(2006, Calendar.JANUARY, 16, 3, 47, 59); cal.set(Calendar.MILLISECOND, 999); Minute m = new Minute(47, 3, 16, 1, 2006); assertEquals(cal.getTime(), m.getEnd()); Locale.setDefault(saved); TimeZone.setDefault(savedZone); } /** * Test for bug 1611872 - previous() fails for first minute in hour. */ @Test public void test1611872() { Minute m1 = new Minute(0, 10, 15, 4, 2000); Minute m2 = (Minute) m1.previous(); assertEquals(m2, new Minute(59, 9, 15, 4, 2000)); } }