/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.axiom.ts.dom.document;
import javax.xml.XMLConstants;
import javax.xml.parsers.DocumentBuilderFactory;
import org.apache.axiom.ts.dom.DOMTestCase;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
/**
* Tests that a call to {@link Node#lookupNamespaceURI(String)} on a {@link Document} actually
* performs a lookup on the document element as described in appendix B.4 of the DOM Level 3 Core
* specification.
*/
public class TestLookupNamespaceURI extends DOMTestCase {
public TestLookupNamespaceURI(DocumentBuilderFactory dbf) {
super(dbf);
}
protected void runTest() throws Throwable {
Document document = dbf.newDocumentBuilder().newDocument();
Element documentElement = document.createElementNS("urn:test", "ns:root");
documentElement.setAttributeNS(XMLConstants.XMLNS_ATTRIBUTE_NS_URI, "xmlns:ns", "urn:test");
document.appendChild(documentElement);
assertEquals("urn:test", document.lookupNamespaceURI("ns"));
// The following assertion is important to check that there is no infinite recursion
// (Document delegates the lookup to its document element, but the document element must
// not delegate to its parent if no matching declaration is found)
assertNull(document.lookupNamespaceURI("p"));
}
}