FeatureTransformerTest.java

package org.geotools.gml.producer;

import static org.custommonkey.xmlunit.XMLAssert.assertXpathEvaluatesTo;

import java.io.ByteArrayOutputStream;
import java.util.HashMap;
import java.util.Map;

import org.custommonkey.xmlunit.SimpleNamespaceContext;
import org.custommonkey.xmlunit.XMLUnit;
import org.geotools.feature.FeatureCollection;
import org.junit.Before;
import org.junit.Test;
import org.w3c.dom.Document;

public class FeatureTransformerTest {
    
    @Before
    public void setup() {
        Map<String, String> namespaces = new HashMap<String, String>();
        namespaces.put("xlink", "http://www.w3.org/1999/xlink");
        namespaces.put("wfs", "http://www.opengis.net/wfs");
        namespaces.put("gml", "http://www.opengis.net/gml");
        XMLUnit.setXpathNamespaceContext(new SimpleNamespaceContext(namespaces));
    }

    @Test
    public void testEncodeEmptyArray() throws Exception {
        FeatureTransformer tx = new FeatureTransformer();
        tx.setIndentation(2);
        tx.setCollectionBounding(true);
        tx.setFeatureBounding(true);
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        tx.transform(new FeatureCollection[0], bos);
        String result = bos.toString();
        // System.out.println(result);
        
        
        Document dom = XMLUnit.buildControlDocument(result);
        assertXpathEvaluatesTo("1", "count(//wfs:FeatureCollection)", dom);
        assertXpathEvaluatesTo("unknown", "/wfs:FeatureCollection/gml:boundedBy/gml:null", dom);
        assertXpathEvaluatesTo("0", "count(//gml:featureMember)", dom);
    }
}