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 */

package global.sandbox.xmlutilities;

import java.io.InputStream;
import junit.framework.TestCase;
import org.w3c.dom.Document;

/**
 *
 * @author Petr Hadraba
 */
public class XSDTest extends TestCase {
    
    private XMLUtilities xmlUtilities;
    
    private NamespaceContextImpl nsCtx;
    
    @Override
    protected void setUp() throws Exception {
        super.setUp();
        
        // we should use default objects, no customizations
        this.xmlUtilities = new XMLUtilities();
        this.nsCtx = createNamespaceContextImpl();
    }
    
    @Override
    protected void tearDown() throws Exception {
        super.tearDown();
        
        this.nsCtx = null;
        this.xmlUtilities = null;
    }
    
    /**
     * demonstrates validation
     * 
     * @throws java.lang.Exception
     */
    public void testValidateValidDocument() throws Exception {
        Document schema = loadSchema();
        Document validXML = loadDocument("example.xml");
        
        String result = xmlUtilities.validateXmlUsingSchema(
                XMLTools.documentToDOMSource(validXML),
                XMLTools.documentToDOMSource(schema));
        
        System.err.println("The resulting String is set to null if validation"
                + " is OK: " + result);
        
        assertNull(result);
    }
    
    /* HELPER METHODS */
    
    private Document loadSchema() throws Exception {
        return loadDocument("example.xsd");
    }
    
    private Document loadDocument(String name) throws Exception {
        InputStream is = getClass().getResourceAsStream(name);
        
        try {
            return xmlUtilities.loadDocumentFromStream(is);
        } finally {
            is.close();
        }
    }
    
    private NamespaceContextImpl createNamespaceContextImpl() throws Exception {
        NamespaceContextImpl nsctx = new NamespaceContextImpl();
        
        nsctx.addNamespace("ns", "http://hadrabap.googlepages.com/projects/"
                + "xmlutilities/example.xsd");
        
        return nsctx;
    }
    
}