Jetty example source code file (DateCacheTest.java)

This example Jetty source code file (DateCacheTest.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Jetty tags/keywords

date, datecache, datecache, datecachetest, datecachetest, eee, eee, gmt, hh:mm:ss, mmm, same, string, string, util, zzz

The Jetty DateCacheTest.java source code

// ========================================================================
// Copyright 2004-2005 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at 
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// ========================================================================

package org.mortbay.util;

import java.util.Locale;
import java.util.TimeZone;

import junit.framework.TestSuite;


/* ------------------------------------------------------------ */
/** Util meta Tests.
 * @author Greg Wilkins (gregw)
 */
public class DateCacheTest extends junit.framework.TestCase
{
    public DateCacheTest(String name)
    {
      super(name);
    }
    
    public static junit.framework.Test suite() {
        TestSuite suite = new TestSuite(DateCacheTest.class);
        return suite;                  
    }

    /* ------------------------------------------------------------ */
    /** main.
     */
    public static void main(String[] args)
    {
      junit.textui.TestRunner.run(suite());
    }    
    
    /* ------------------------------------------------------------ */
    public void testDateCache() throws Exception
    {
        //@WAS: Test t = new Test("org.mortbay.util.DateCache");
        //                            012345678901234567890123456789
        DateCache dc = new DateCache("EEE, dd MMM yyyy HH:mm:ss zzz ZZZ",
                                     Locale.US);
            dc.setTimeZone(TimeZone.getTimeZone("GMT"));
            String last=dc.format(System.currentTimeMillis());
            boolean change=false;
            for (int i=0;i<15;i++)
            {
                Thread.sleep(100);
                String date=dc.format(System.currentTimeMillis());
                
                assertEquals( "Same Date",
                              last.substring(0,17),
                              date.substring(0,17));
                
                if (!last.substring(17).equals(date.substring(17)))
                    change=true;
                else
                {
                    int lh=Integer.parseInt(last.substring(17,19));
                    int dh=Integer.parseInt(date.substring(17,19));
                    int lm=Integer.parseInt(last.substring(20,22));
                    int dm=Integer.parseInt(date.substring(20,22));
                    int ls=Integer.parseInt(last.substring(23,25));
                    int ds=Integer.parseInt(date.substring(23,25));

                    // This won't work at midnight!
                    change|= ds!=ls || dm!=lm || dh!=lh;
                }
                last=date;
            }
            assertTrue("time changed", change);


            // Test string is cached
            dc = new DateCache();
            String s1=dc.format(System.currentTimeMillis());
            dc.format(1);
            String s2=dc.format(System.currentTimeMillis());
            dc.format(System.currentTimeMillis()+10*60*60);
            String s3=dc.format(System.currentTimeMillis());
            assertTrue(s1==s2 || s2==s3);
    }

}