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.] * * ---------------- * QuarterTest.java * ---------------- * (C) Copyright 2001-2013, by Object Refinery Limited. * * Original Author: David Gilbert (for Object Refinery Limited); * Contributor(s): -; * * Changes * ------- * 16-Nov-2001 : Version 1 (DG); * 17-Oct-2002 : Fixed errors reported by Checkstyle (DG); * 13-Mar-2003 : Added serialization test (DG); * 11-Jan-2005 : Added check for non-clonability (DG); * 05-Oct-2006 : Added some new tests (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.junit.Before; import org.junit.Test; /** * Tests for the {link Quarter} class. */ public class QuarterTest { /** A quarter. */ private Quarter q1Y1900; /** A quarter. */ private Quarter q2Y1900; /** A quarter. */ private Quarter q3Y9999; /** A quarter. */ private Quarter q4Y9999; /** * Common test setup. */ @Before public void setUp() { this.q1Y1900 = new Quarter(1, 1900); this.q2Y1900 = new Quarter(2, 1900); this.q3Y9999 = new Quarter(3, 9999); this.q4Y9999 = new Quarter(4, 9999); } /** * Check that a Quarter instance is equal to itself. * * SourceForge Bug ID: 558850. */ @Test public void testEqualsSelf() { Quarter quarter = new Quarter(); assertTrue(quarter.equals(quarter)); } /** * Tests the equals method. */ @Test public void testEquals() { Quarter q1 = new Quarter(2, 2002); Quarter q2 = new Quarter(2, 2002); assertTrue(q1.equals(q2)); } /** * In GMT, the end of Q1 2002 is java.util.Date(1017619199999L). Use this * to check the quarter constructor. */ @Test public void testDateConstructor1() { TimeZone zone = TimeZone.getTimeZone("GMT"); Quarter q1 = new Quarter(new Date(1017619199999L), zone); Quarter q2 = new Quarter(new Date(1017619200000L), zone); assertEquals(1, q1.getQuarter()); assertEquals(1017619199999L, q1.getLastMillisecond(zone)); assertEquals(2, q2.getQuarter()); assertEquals(1017619200000L, q2.getFirstMillisecond(zone)); } /** * In Istanbul, the end of Q1 2002 is java.util.Date(1017608399999L). Use * this to check the quarter constructor. */ @Test public void testDateConstructor2() { TimeZone zone = TimeZone.getTimeZone("Europe/Istanbul"); Quarter q1 = new Quarter(new Date(1017608399999L), zone); Quarter q2 = new Quarter(new Date(1017608400000L), zone); assertEquals(1, q1.getQuarter()); assertEquals(1017608399999L, q1.getLastMillisecond(zone)); assertEquals(2, q2.getQuarter()); assertEquals(1017608400000L, q2.getFirstMillisecond(zone)); } /** * Set up a quarter equal to Q1 1900. Request the previous quarter, it * should be null. */ @Test public void testQ1Y1900Previous() { Quarter previous = (Quarter) this.q1Y1900.previous(); assertNull(previous); } /** * Set up a quarter equal to Q1 1900. Request the next quarter, it should * be Q2 1900. */ @Test public void testQ1Y1900Next() { Quarter next = (Quarter) this.q1Y1900.next(); assertEquals(this.q2Y1900, next); } /** * Set up a quarter equal to Q4 9999. Request the previous quarter, it * should be Q3 9999. */ @Test public void testQ4Y9999Previous() { Quarter previous = (Quarter) this.q4Y9999.previous(); assertEquals(this.q3Y9999, previous); } /** * Set up a quarter equal to Q4 9999. Request the next quarter, it should * be null. */ @Test public void testQ4Y9999Next() { Quarter next = (Quarter) this.q4Y9999.next(); assertNull(next); } /** * Test the string parsing code... */ @Test public void testParseQuarter() { Quarter quarter = null; // test 1... try { quarter = Quarter.parseQuarter("Q1-2000"); } catch (TimePeriodFormatException e) { quarter = new Quarter(1, 1900); } assertEquals(1, quarter.getQuarter()); assertEquals(2000, quarter.getYear().getYear()); // test 2... try { quarter = Quarter.parseQuarter("2001-Q2"); } catch (TimePeriodFormatException e) { quarter = new Quarter(1, 1900); } assertEquals(2, quarter.getQuarter()); assertEquals(2001, quarter.getYear().getYear()); // test 3... try { quarter = Quarter.parseQuarter("Q3, 2002"); } catch (TimePeriodFormatException e) { quarter = new Quarter(1, 1900); } assertEquals(3, quarter.getQuarter()); assertEquals(2002, quarter.getYear().getYear()); } /** * Serialize an instance, restore it, and check for equality. */ @Test public void testSerialization() { Quarter q1 = new Quarter(4, 1999); Quarter q2 = (Quarter) TestUtilities.serialised(q1); assertEquals(q1, q2); } /** * Two objects that are equal are required to return the same hashCode. */ @Test public void testHashcode() { Quarter q1 = new Quarter(2, 2003); Quarter q2 = new Quarter(2, 2003); assertTrue(q1.equals(q2)); int h1 = q1.hashCode(); int h2 = q2.hashCode(); assertEquals(h1, h2); } /** * The {@link Quarter} class is immutable, so should not be * {@link Cloneable}. */ @Test public void testNotCloneable() { Quarter q = new Quarter(2, 2003); assertFalse(q instanceof Cloneable); } /** * Some tests for the constructor with (int, int) arguments. Covers bug * report 1377239. */ @Test public void testConstructor() { boolean pass = false; try { /*Quarter q =*/ new Quarter(0, 2005); } catch (IllegalArgumentException e) { pass = true; } assertTrue(pass); pass = false; try { /*Quarter q =*/ new Quarter(5, 2005); } catch (IllegalArgumentException e) { pass = true; } assertTrue(pass); } /** * 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")); Quarter q = new Quarter(3, 1970); assertEquals(15634800000L, q.getFirstMillisecond()); Locale.setDefault(saved); TimeZone.setDefault(savedZone); } /** * Some checks for the getFirstMillisecond(TimeZone) method. */ @Test public void testGetFirstMillisecondWithTimeZone() { Quarter q = new Quarter(2, 1950); TimeZone zone = TimeZone.getTimeZone("America/Los_Angeles"); assertEquals(-623347200000L, q.getFirstMillisecond(zone)); // try null calendar boolean pass = false; try { q.getFirstMillisecond((TimeZone) null); } catch (NullPointerException e) { pass = true; } assertTrue(pass); } /** * Some checks for the getFirstMillisecond(TimeZone) method. */ @Test public void testGetFirstMillisecondWithCalendar() { Quarter q = new Quarter(1, 2001); GregorianCalendar calendar = new GregorianCalendar(Locale.GERMANY); calendar.setTimeZone(TimeZone.getTimeZone("Europe/Frankfurt")); assertEquals(978307200000L, q.getFirstMillisecond(calendar)); // try null calendar boolean pass = false; try { q.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")); Quarter q = new Quarter(3, 1970); assertEquals(23583599999L, q.getLastMillisecond()); Locale.setDefault(saved); TimeZone.setDefault(savedZone); } /** * Some checks for the getLastMillisecond(TimeZone) method. */ @Test public void testGetLastMillisecondWithTimeZone() { Quarter q = new Quarter(2, 1950); TimeZone zone = TimeZone.getTimeZone("America/Los_Angeles"); assertEquals(-615488400001L, q.getLastMillisecond(zone)); // try null calendar boolean pass = false; try { q.getLastMillisecond((TimeZone) null); } catch (NullPointerException e) { pass = true; } assertTrue(pass); } /** * Some checks for the getLastMillisecond(TimeZone) method. */ @Test public void testGetLastMillisecondWithCalendar() { Quarter q = new Quarter(3, 2001); GregorianCalendar calendar = new GregorianCalendar(Locale.GERMANY); calendar.setTimeZone(TimeZone.getTimeZone("Europe/Frankfurt")); assertEquals(1001894399999L, q.getLastMillisecond(calendar)); // try null calendar boolean pass = false; try { q.getLastMillisecond((Calendar) null); } catch (NullPointerException e) { pass = true; } assertTrue(pass); } /** * Some checks for the getSerialIndex() method. */ @Test public void testGetSerialIndex() { Quarter q = new Quarter(1, 2000); assertEquals(8001L, q.getSerialIndex()); q = new Quarter(1, 1900); assertEquals(7601L, q.getSerialIndex()); } /** * Some checks for the testNext() method. */ @Test public void testNext() { Quarter q = new Quarter(1, 2000); q = (Quarter) q.next(); assertEquals(new Year(2000), q.getYear()); assertEquals(2, q.getQuarter()); q = new Quarter(4, 9999); assertNull(q.next()); } /** * Some checks for the getStart() method. */ @Test public void testGetStart() { Locale saved = Locale.getDefault(); Locale.setDefault(Locale.ITALY); Calendar cal = Calendar.getInstance(Locale.ITALY); cal.set(2006, Calendar.JULY, 1, 0, 0, 0); cal.set(Calendar.MILLISECOND, 0); Quarter q = new Quarter(3, 2006); assertEquals(cal.getTime(), q.getStart()); Locale.setDefault(saved); } /** * Some checks for the getEnd() method. */ @Test public void testGetEnd() { Locale saved = Locale.getDefault(); Locale.setDefault(Locale.ITALY); Calendar cal = Calendar.getInstance(Locale.ITALY); cal.set(2006, Calendar.MARCH, 31, 23, 59, 59); cal.set(Calendar.MILLISECOND, 999); Quarter q = new Quarter(1, 2006); assertEquals(cal.getTime(), q.getEnd()); Locale.setDefault(saved); } }