/*
***************************************************************************************
* Copyright (C) 2006 EsperTech, Inc. All rights reserved. *
* http://www.espertech.com/esper *
* http://www.espertech.com *
* ---------------------------------------------------------------------------------- *
* The software in this package is published under the terms of the GPL license *
* a copy of which has been included with this distribution in the license.txt file. *
***************************************************************************************
*/
package com.espertech.esper.epl.agg;
import com.espertech.esper.epl.agg.aggregator.AggregatorAvedev;
import junit.framework.TestCase;
public class TestAvedevAggregator extends TestCase {
public void testAggregateFunction() {
AggregatorAvedev agg = new AggregatorAvedev();
assertNull(agg.getValue());
agg.enter(82);
assertEquals(0D, agg.getValue());
agg.enter(78);
assertEquals(2D, agg.getValue());
agg.enter(70);
double result = (Double) agg.getValue();
assertEquals("4.4444", Double.toString(result).substring(0, 6));
agg.enter(58);
assertEquals(8D, agg.getValue());
agg.enter(42);
assertEquals(12.8D, agg.getValue());
agg.leave(82);
assertEquals(12D, agg.getValue());
agg.leave(58);
result = (Double) agg.getValue();
assertEquals("14.2222", Double.toString(result).substring(0, 7));
}
}