LiannaTestCase.java

package org.apache.commons.digester3;

import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;

import java.io.StringReader;

import org.junit.Before;
import org.junit.Test;

public class LiannaTestCase
{

    private Digester d;

    @Before
    public void setUp()
    {
        d = new Digester();

        d.addObjectCreate( "ptwebltl", Ptwebltl.class );

        d.addObjectCreate( "*/true", TRUE.class );
        d.addSetNext( "*/true", "addFormula" );

        d.addObjectCreate( "*/not", NOT.class );
        d.addSetNext( "*/not", "addFormula" );
    }


    public void tearDown()
    {
        d.clear();
        d = null;
    }

    @Test
    public void parseNegate()
        throws Exception
    {
        String toBeParsed = "<ptwebltl><not><true/></not></ptwebltl>";

        Bool bool = d.parse( new StringReader( toBeParsed ) );
        assertFalse( bool.value() );
    }

    @Test
    public void parseDirect()
        throws Exception
    {
        String toBeParsed = "<ptwebltl><true/></ptwebltl>";

        Bool bool = d.parse( new StringReader( toBeParsed ) );
        assertTrue( bool.value() );
    }

    public static interface Bool
    {

        void addFormula( Bool bool );

        boolean value();

    }

    public static class Ptwebltl
        implements Bool
    {

        private Bool bool;

        public void addFormula( Bool bool )
        {
            this.bool = bool;
        }

        public boolean value()
        {
            return bool.value();
        }

    }

    public static class TRUE
        implements Bool
    {

        public void addFormula( Bool bool )
        {
            // do nothing
        }

        public boolean value()
        {
            return true;
        }

    }

    public static class NOT
        implements Bool
    {

        private Bool bool;

        public void addFormula( Bool bool )
        {
            this.bool = bool;
        }

        public boolean value()
        {
            return !bool.value();
        }

    }

}