modules/axiom-tests/src/test/java/org/apache/axiom/om/OMWrapperTest.java

/*
 * 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,
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 * KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations
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package org.apache.axiom.om;

import junit.framework.TestCase;
import org.apache.axiom.om.impl.builder.StAXOMBuilder;
import org.apache.axiom.om.impl.llom.OMStAXWrapper;

import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import java.io.StringReader;

public class OMWrapperTest extends TestCase {

    public void testSingleElementWrapper() {
        try {
            String xml = "<root>" +
                    "<wrap1>" +
                    "<wrap3>" +
                    "<wrap2>" +
                    "IncludedText" +
                    "</wrap2>" +
                    "</wrap3>" +
                    "</wrap1>" +
                    "</root>";

            XMLStreamReader xmlStreamReader =
                    XMLInputFactory.newInstance().createXMLStreamReader(new StringReader(xml));
            StAXOMBuilder b = new StAXOMBuilder(xmlStreamReader);

            OMElement documentElement = b.getDocumentElement();
            OMElement wrap2Element =
                    documentElement.getFirstElement().
                            getFirstElement().
                            getFirstElement();

            OMElement elt = OMAbstractFactory.getOMFactory().createOMElement(
                    "testName", "urn:testNs", "ns1"
            );

            elt.addChild(wrap2Element);


            XMLStreamReader reader = wrap2Element.getXMLStreamReaderWithoutCaching();
            
            // Make sure the reader is an OMStAXWrapper
            if (reader instanceof OMStAXWrapper) {
                OMStAXWrapper wrapper = (OMStAXWrapper) reader;
                assertTrue(!wrapper.isClosed());
                wrapper.releaseParserOnClose(true);
            }
            
            int count = 0;
            while (reader.hasNext()) {
                reader.next();
                count ++;
            }

            assertEquals(3, count);
            
            
            // Make sure that the wrapper can be closed without failing
            reader.close();
            reader.close();  // This should be a noop since the parser is closed.
            
            // Closing the parser should also close the parser on the builder (since they are the same)
            assertTrue(b.isClosed());
            b.close(); // This should be a noop since the parser is closed
            
            // Calling getProperty after a close should return null, not an exception
            assertTrue(reader.getProperty("dummyProperty") == null);
        } catch (XMLStreamException e) {
            fail(e.getMessage());
        }


    }


}