119 lines
4.6 KiB
Java
119 lines
4.6 KiB
Java
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/* ====================================================================
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* The Apache Software License, Version 1.1
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*
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* Copyright (c) 2003 The Apache Software Foundation. All rights
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* reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. The end-user documentation included with the redistribution,
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* if any, must include the following acknowledgment:
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* "This product includes software developed by the
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* Apache Software Foundation (http://www.apache.org/)."
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* Alternately, this acknowledgment may appear in the software itself,
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* if and wherever such third-party acknowledgments normally appear.
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*
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* 4. The names "Apache" and "Apache Software Foundation" and
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* "Apache POI" must not be used to endorse or promote products
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* derived from this software without prior written permission. For
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* written permission, please contact apache@apache.org.
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*
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* 5. Products derived from this software may not be called "Apache",
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* "Apache POI", nor may "Apache" appear in their name, without
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* prior written permission of the Apache Software Foundation.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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* ====================================================================
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*
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* This software consists of voluntary contributions made by many
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* individuals on behalf of the Apache Software Foundation. For more
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* information on the Apache Software Foundation, please see
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* <http://www.apache.org/>.
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*/
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package org.apache.poi.hssf.usermodel;
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import junit.framework.TestCase;
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import java.util.Date;
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import java.util.GregorianCalendar;
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/**
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* Class TestHSSFDateUtil
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*
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*
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* @author
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* @author Dan Sherman (dsherman at isisph.com)
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* @version %I%, %G%
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*/
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public class TestHSSFDateUtil
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extends TestCase
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{
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public TestHSSFDateUtil(String s)
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{
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super(s);
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}
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/**
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* Checks the date conversion functions in the HSSFDateUtil class.
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*/
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public void testDateConversion()
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throws Exception
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{
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// Iteratating over the hours exposes any rounding issues.
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for (int hour = 0; hour < 23; hour++)
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{
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GregorianCalendar date = new GregorianCalendar(2002, 0, 1,
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hour, 1, 1);
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double excelDate =
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HSSFDateUtil.getExcelDate(date.getTime());
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assertEquals("Checking hour = " + hour, date.getTime().getTime(),
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HSSFDateUtil.getJavaDate(excelDate).getTime());
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}
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// check 1900 and 1904 date windowing conversions
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double excelDate = 36526.0;
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// with 1900 windowing, excelDate is Jan. 1, 2000
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// with 1904 windowing, excelDate is Jan. 2, 2004
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GregorianCalendar cal = new GregorianCalendar(2000,0,1); // Jan. 1, 2000
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Date dateIf1900 = cal.getTime();
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cal.add(GregorianCalendar.YEAR,4); // now Jan. 1, 2004
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cal.add(GregorianCalendar.DATE,1); // now Jan. 2, 2004
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Date dateIf1904 = cal.getTime();
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// 1900 windowing
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assertEquals("Checking 1900 Date Windowing",
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dateIf1900.getTime(),
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HSSFDateUtil.getJavaDate(excelDate,false).getTime());
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// 1904 windowing
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assertEquals("Checking 1904 Date Windowing",
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dateIf1904.getTime(),
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HSSFDateUtil.getJavaDate(excelDate,true).getTime());
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}
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}
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