/*
* *************************************************************************************
* Copyright (C) 2008 EsperTech, Inc. All rights reserved. *
* http://esper.codehaus.org *
* 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.join.exec;
import com.espertech.esper.client.EventBean;
import com.espertech.esper.epl.join.exec.base.FullTableScanLookupStrategy;
import com.espertech.esper.epl.join.exec.base.TableOuterLookupExecNode;
import com.espertech.esper.support.event.SupportEventBeanFactory;
import com.espertech.esper.epl.join.table.UnindexedEventTable;
import java.util.List;
import java.util.LinkedList;
import java.util.Iterator;
import junit.framework.TestCase;
public class TestTableOuterLookupExecNode extends TestCase
{
private TableOuterLookupExecNode exec;
private UnindexedEventTable index;
public void setUp()
{
index = new UnindexedEventTable(0);
exec = new TableOuterLookupExecNode(1, new FullTableScanLookupStrategy(index));
}
public void testFlow()
{
EventBean[] lookupEvents = SupportEventBeanFactory.makeMarketDataEvents(new String[] {"a2"});
List<EventBean[]> result = new LinkedList<EventBean[]>();
EventBean[] prefill = new EventBean[] {lookupEvents[0], null};
// Test lookup on empty index, expect 1 row
exec.process(lookupEvents[0], prefill, result, null);
assertEquals(1, result.size());
EventBean[] events = result.iterator().next();
assertNull(events[1]);
assertSame(lookupEvents[0], events[0]);
result.clear();
// Test lookup on filled index, expect row2
EventBean[] indexEvents = SupportEventBeanFactory.makeEvents(new String[] {"a1", "a2"});
index.add(indexEvents);
exec.process(lookupEvents[0], prefill, result, null);
assertEquals(2, result.size());
Iterator<EventBean[]> it = result.iterator();
events = it.next();
assertSame(lookupEvents[0], events[0]);
assertTrue((indexEvents[0] == events[1]) || (indexEvents[1] == events[1]));
events = it.next();
assertSame(lookupEvents[0], events[0]);
assertTrue((indexEvents[0] == events[1]) || (indexEvents[1] == events[1]));
}
}