/*
 *    GeoTools - The Open Source Java GIS Toolkit
 *    http://geotools.org
 * 
 *    (C) 2002-2008, Open Source Geospatial Foundation (OSGeo)
 *
 *    This library is free software; you can redistribute it and/or
 *    modify it under the terms of the GNU Lesser General Public
 *    License as published by the Free Software Foundation;
 *    version 2.1 of the License.
 *
 *    This library is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *    Lesser General Public License for more details.
 */
package org.geotools.filter.function;

import org.geotools.data.simple.SimpleFeatureIterator;
import org.opengis.feature.simple.SimpleFeature;
import org.opengis.filter.expression.Function;


public class GeometryFunctionFilterTest extends FunctionTestSupport {

    public GeometryFunctionFilterTest() {
        super("GeometryFunctionFilterTest");
    }
    
    public void testBasicTest() throws Exception {
        Function exp = ff.function("geometryType", ff.property("geom"));
        SimpleFeatureIterator iter=featureCollection.features();
        while( iter.hasNext() ){
            SimpleFeature feature = iter.next();
            assertEquals( "Point", exp.evaluate(feature) );
        }
        
        iter.close();
    }
    
    public void testNullTest() throws Exception {
        Function exp = ff.function("geometryType", ff.property("geom"));
        SimpleFeatureIterator iter=featureCollection.features();
        while( iter.hasNext() ){
        	SimpleFeature feature = iter.next();
            feature.setAttribute("geom",null);
            assertNull( exp.evaluate(feature) );
        }
        
        iter.close();
    }
    
    public void testNull() throws Exception {
        assertEquals(null, ff.function("buffer", ff.literal(null), ff.literal(10)).evaluate(null));
    }
}