testing/axiom-testsuite/src/main/java/org/apache/axiom/ts/om/element/TestGetChildrenRemove4.java

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 * 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
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package org.apache.axiom.ts.om.element;

import java.io.StringReader;
import java.util.Iterator;

import org.apache.axiom.om.OMElement;
import org.apache.axiom.om.OMMetaFactory;
import org.apache.axiom.om.OMNode;
import org.apache.axiom.om.OMXMLBuilderFactory;
import org.apache.axiom.ts.AxiomTestCase;

/** test whether the children count reduces. */
public class TestGetChildrenRemove4 extends AxiomTestCase {
    public TestGetChildrenRemove4(OMMetaFactory metaFactory) {
        super(metaFactory);
    }

    @Override
    protected void runTest() throws Throwable {
        OMElement elt = OMXMLBuilderFactory.createOMBuilder(metaFactory.getOMFactory(),
                new StringReader("<root>a<b/><!--c--><d/>e</root>")).getDocumentElement();
        Iterator<OMNode> iter = elt.getChildren();
        int firstChildrenCount = 0;
        int secondChildrenCount = 0;
        while (iter.hasNext()) {
            assertNotNull(iter.next());
            firstChildrenCount++;
        }

        //remove the last node
        iter.remove();

        //reloop and check the count
        //Note- here we should get a fresh iterator since there is no method to
        //reset the iterator
        iter = elt.getChildren(); //reset the iterator
        while (iter.hasNext()) {
            assertNotNull(iter.next());
            secondChildrenCount++;
        }
        assertEquals("children count must reduce from 1",
                     firstChildrenCount - 1,
                     secondChildrenCount);

        elt.close(false);
    }
}