/*
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.batik.dom;
import java.io.StringReader;
import org.apache.batik.dom.AbstractElement;
import org.apache.batik.dom.util.SAXDocumentFactory;
import org.apache.batik.test.AbstractTest;
import org.apache.batik.util.XMLResourceDescriptor;
import org.w3c.dom.Document;
import org.w3c.dom.ElementTraversal;
/**
* Tests the {@link ElementTraversal} interface.
*
* @author <a href="mailto:cam%40mcc%2eid%2eau">Cameron McCormack</a>
* @version $Id$
*/
public class ElementTraversalTest extends AbstractTest {
private String DOC = "<a><b/><c>.<?x?>.</c><d>.<?x?><e/><f/><?x?>.</d><g><h/>.<i/></g></a>";
public boolean runImplBasic() throws Exception {
String parser = XMLResourceDescriptor.getXMLParserClassName();
SAXDocumentFactory df = new SAXDocumentFactory(GenericDOMImplementation.getDOMImplementation(), parser);
Document doc = df.createDocument("http://example.org/", new StringReader(DOC));
AbstractElement a = (AbstractElement) doc.getDocumentElement();
AbstractElement b = (AbstractElement) a.getFirstChild();
AbstractElement c = (AbstractElement) b.getNextSibling();
AbstractElement d = (AbstractElement) c.getNextSibling();
AbstractElement g = (AbstractElement) d.getNextSibling();
// (1) Test firstElementChild with no children
ensure(1, b.getFirstElementChild() == null);
// (2) Test firstElementChild with children but no element children
ensure(2, c.getFirstElementChild() == null);
// (3) Test firstElementChild with children but element child is not first
AbstractElement e = (AbstractElement) d.getFirstElementChild();
ensure(3, e != null && e.getNodeName().equals("e"));
// (4) Test firstElementChild with children and element child is first
AbstractElement h = (AbstractElement) g.getFirstElementChild();
ensure(4, h != null && h.getNodeName().equals("h"));
// (5) Test lastElementChild with no children
ensure(5, b.getLastElementChild() == null);
// (6) Test lastElementChild with children but no element children
ensure(6, c.getLastElementChild() == null);
// (7) Test lastElementChild with children but element child is not last
AbstractElement f = (AbstractElement) d.getLastElementChild();
ensure(7, f != null && f.getNodeName().equals("f"));
// (8) Test lastElementChild with children and element child is last
AbstractElement i = (AbstractElement) g.getLastElementChild();
ensure(8, i != null && i.getNodeName().equals("i"));
// (9) Test nextElementSibling with no next sibling
ensure(9, a.getNextElementSibling() == null);
// (10) Test nextElementSibling with next siblings but no element next sibling
ensure(10, f.getNextElementSibling() == null);
// (11) Test nextElementSibling with next element sibling but not first
ensure(11, h.getNextElementSibling() == i);
// (12) Test nextElementSibling with next element sibling which is first
ensure(12, e.getNextElementSibling() == f);
// (13) Test previousElementSibling with no previous sibling
ensure(13, a.getPreviousElementSibling() == null);
// (14) Test previousElementSibling with previous siblings but no element previous sibling
ensure(14, e.getPreviousElementSibling() == null);
// (15) Test previousElementSibling with previous element sibling but not first
ensure(15, i.getPreviousElementSibling() == h);
// (16) Test previousElementSibling with previous element sibling which is first
ensure(16, f.getPreviousElementSibling() == e);
// (17-20) Test childElementCount for a few cases
ensure(17, a.getChildElementCount() == 4);
ensure(18, b.getChildElementCount() == 0);
ensure(19, c.getChildElementCount() == 0);
ensure(20, d.getChildElementCount() == 2);
return true;
}
protected void ensure(int subTestNumber, boolean b) {
if (!b) {
throw new RuntimeException("Assertion failure in sub-test " + subTestNumber);
}
}
}