TestIsNotNullFunction.java :  » Database-DBMS » axion » org » axiondb » functions » Java Open Source

/*
 * $Id: TestIsNotNullFunction.java,v 1.2 2004/08/07 10:16:48 ahimanikya Exp $
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package org.axiondb.functions;

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

import junit.framework.Test;
import junit.framework.TestSuite;

import org.axiondb.ColumnIdentifier;
import org.axiondb.Function;
import org.axiondb.RowDecorator;
import org.axiondb.engine.rows.SimpleRow;

/**
 * @version $Revision: 1.2 $ $Date: 2004/08/07 10:16:48 $
 * @author Rodney Waldhoff
 */
public class TestIsNotNullFunction extends BaseFunctionTest {

    //------------------------------------------------------------ Conventional

    public TestIsNotNullFunction(String testName) {
        super(testName);
    }

    public static Test suite() {
        TestSuite suite = new TestSuite(TestIsNotNullFunction.class);
        return suite;
    }

    //--------------------------------------------------------------- Lifecycle

    //--------------------------------------------------------------- Framework
    
    protected ConcreteFunction makeFunction() {
        return new IsNotNullFunction();
    }
    
    //------------------------------------------------------------------- Tests

    public void testMakeNewInstance() {
        IsNotNullFunction function = new IsNotNullFunction();
        assertTrue(function.makeNewInstance() instanceof IsNotNullFunction);
        assertTrue(function.makeNewInstance() != function.makeNewInstance());
    }

    public void testEvaluate() throws Exception {
        Function function = makeFunction();
        ColumnIdentifier sel = new ColumnIdentifier("foo");
        function.addArgument(sel);
        Map map = new HashMap();
        map.put(sel,new Integer(0));                
        RowDecorator dec = new RowDecorator(map);
        {
            dec.setRow(new SimpleRow(new Object[] { null }));        
            assertEquals(Boolean.FALSE,function.evaluate(dec));
        }
        {
            dec.setRow(new SimpleRow(new Object[] { "xyzzy" }));        
            assertEquals(Boolean.TRUE,function.evaluate(dec));
        }
    }

    public void testValidity() throws Exception {
        ConcreteFunction function = makeFunction();
        assertTrue(! function.isValid() );
        function.addArgument(new ColumnIdentifier("foo"));
        assertTrue(function.isValid() );
        function.addArgument(new ColumnIdentifier("bar"));
        assertTrue(! function.isValid() );
    }
}