ExpressionConfigWrapperTest.java

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 * This file is part of OpenNMS(R).
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 * Copyright (C) 2007-2011 The OpenNMS Group, Inc.
 * OpenNMS(R) is Copyright (C) 1999-2011 The OpenNMS Group, Inc.
 *
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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package org.opennms.netmgt.threshd;

import java.util.HashMap;
import java.util.Map;

import junit.framework.Assert;

import org.junit.Test;
import org.opennms.netmgt.config.threshd.Expression;

/**
 * 
 * @author <a href="mailto:agalue@opennms.org">Alejandro Galue</a>
 */
public class ExpressionConfigWrapperTest {
    
    /* See NMS-5014 */
    @Test
    public void testComplexExpression() throws Exception {
        Expression exp = new Expression();
        exp.setExpression("jnxOperatingState == 2.0 || jnxOperatingState == 3.0 || jnxOperatingState == 7.0 ? 1.0 : 0.0");
        ExpressionConfigWrapper wrapper = new ExpressionConfigWrapper(exp);
        Assert.assertEquals(1, wrapper.getRequiredDatasources().size());
        Map<String, Double> values = new HashMap<String,Double>();
        values.put("jnxOperatingState", 1.0);
        Assert.assertEquals(0.0, wrapper.evaluate(values));
        values.put("jnxOperatingState", 2.0);
        Assert.assertEquals(1.0, wrapper.evaluate(values));
        values.put("jnxOperatingState", 3.0);
        Assert.assertEquals(1.0, wrapper.evaluate(values));
        values.put("jnxOperatingState", 4.0);
        Assert.assertEquals(0.0, wrapper.evaluate(values));
        values.put("jnxOperatingState", 5.0);
        Assert.assertEquals(0.0, wrapper.evaluate(values));
        values.put("jnxOperatingState", 6.0);
        Assert.assertEquals(0.0, wrapper.evaluate(values));
        values.put("jnxOperatingState", 7.0);
        Assert.assertEquals(1.0, wrapper.evaluate(values));
    }

    /* See NMS-5019 */
    @Test
    public void testHandleInvalidDsNames() throws Exception {
        Expression exp = new Expression();
        exp.setExpression("datasources['ns-dskTotal'] - datasources['ns-dskUsed']");
        ExpressionConfigWrapper wrapper = new ExpressionConfigWrapper(exp);
        Assert.assertEquals(1, wrapper.getRequiredDatasources().size());
        Map<String, Double> values = new HashMap<String,Double>();
        values.put("ns-dskTotal", 100.0);
        values.put("ns-dskUsed", 40.0);
        Assert.assertEquals(60.0, wrapper.evaluate(values));
    }

}