/*
* NOTE: This copyright does *not* cover user programs that use HQ
* program services by normal system calls through the application
* program interfaces provided as part of the Hyperic Plug-in Development
* Kit or the Hyperic Client Development Kit - this is merely considered
* normal use of the program, and does *not* fall under the heading of
* "derived work".
*
* Copyright (C) [2004, 2005, 2006], Hyperic, Inc.
* This file is part of HQ.
*
* HQ is free software; you can redistribute it and/or modify
* it under the terms version 2 of the GNU General Public License as
* published by the Free Software Foundation. This program 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 General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA.
*/
package org.hyperic.util.stats;
import junit.framework.TestCase;
import org.hyperic.util.stats.TimeWindowCollector;
public class TimeWindowCollectorTest extends TestCase {
public TimeWindowCollectorTest(String name) {
super(name);
}
/**
* Setup a window of size 5, make sure that old entries are removed.
*/
public void testWindow() throws Exception {
TimeWindowCollector c = new TimeWindowCollector(5);
assertTrue(c.getSum() == 0.0);
assertFalse(c.hasRolled());
c.addPoint(1, 10);
assertTrue(c.getSum() == 10.0);
c.addPoint(2, 11);
assertTrue(c.getSum() == 21.0);
c.addPoint(3, 12);
assertTrue(c.getSum() == 33.0);
c.addPoint(4, 13);
assertTrue(c.getSum() == 46.0);
c.addPoint(5, 14);
assertTrue(c.getSum() == 60.0);
c.addPoint(6, 15);
assertTrue(c.getSum() == 75.0);
c.addPoint(7, 16);
assertFalse(c.hasRolled());
assertTrue(c.getSum() == 91.0);
assertFalse(c.hasRolled());
c.removeOldPoints();
assertTrue(c.getSum() == 81.0);
assertTrue(c.hasRolled());
}
}