FunLangTest.java

package org.exist.xquery.functions.fn;

import org.exist.test.ExistXmldbEmbeddedServer;
import org.junit.ClassRule;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import org.xmldb.api.base.ResourceSet;
import org.xmldb.api.base.XMLDBException;

/**
 *
 * @author ljo
 */
public class FunLangTest {

    @ClassRule
    public static final ExistXmldbEmbeddedServer existEmbeddedServer = new ExistXmldbEmbeddedServer(false, true);

    @Test
    public void testFnLangWithContext() throws XMLDBException {
        final ResourceSet resourceSet = existEmbeddedServer.executeQuery(
            "let $doc-frag := " +
	    "<desclist xml:lang=\"en\">" +
	       "<desc xml:lang=\"en-US\" n=\"1\">" +
	          "<line>The first line of the description.</line>" +
	       "</desc>" +
	       "<desc xml:lang=\"fr\" n=\"2\">"+
	          "<line>La première ligne de la déscription.</line>" +
	       "</desc>" +
	    "</desclist>" + 
            "return $doc-frag//desc[lang(\"en-US\")]"
        );
        
        assertEquals(1, resourceSet.getSize());
        assertEquals("<desc xml:lang=\"en-US\" n=\"1\">\n    <line>The first line of the description.</line>\n</desc>", resourceSet.getResource(0).getContent());
    }

        @Test
    public void testFnLangWithArgument() throws XMLDBException {
		final ResourceSet resourceSet = existEmbeddedServer.executeQuery(
            "let $doc-frag := " +
	    "<desclist xml:lang=\"en\">" +
	       "<desc xml:lang=\"en-US\" n=\"1\">" +
	          "<line>The first line of the description.</line>" +
	       "</desc>" +
	       "<desc xml:lang=\"fr\" n=\"2\">"+
	          "<line>La première ligne de la déscription.</line>" +
	       "</desc>" +
	    "</desclist>" + 
            "return lang(\"en-US\", $doc-frag//desc[@n eq \"2\"])"
        );
        
        assertEquals(1, resourceSet.getSize());
        assertEquals("false", resourceSet.getResource(0).getContent());
    }
    
    @Test
    public void testFnLangWithAttributeArgument() throws XMLDBException {
		final ResourceSet resourceSet = existEmbeddedServer.executeQuery(
            "let $doc-frag := " +
	    "<desclist xml:lang=\"en\">" +
	       "<desc xml:lang=\"en-US\" n=\"1\">" +
	          "<line>The first line of the description.</line>" +
	       "</desc>" +
	       "<desc xml:lang=\"fr\" n=\"2\">"+
	          "<line>La première ligne de la déscription.</line>" +
	       "</desc>" +
	    "</desclist>" + 
            "return lang(\"en-US\", $doc-frag//desc/@n[. eq \"1\"])"
        );
        
        assertEquals(1, resourceSet.getSize());
        assertEquals("true", resourceSet.getResource(0).getContent());
    }
}