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/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed 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 libcore.xml;
import java.io.StringWriter;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import junit.framework.TestCase;
import org.w3c.dom.Attr;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
public final class DomSerializationTest extends TestCase {
private DocumentBuilder documentBuilder;
private Transformer transformer;
@Override protected void setUp() throws Exception {
DocumentBuilderFactory builderFactory = DocumentBuilderFactory.newInstance();
documentBuilder = builderFactory.newDocumentBuilder();
transformer = TransformerFactory.newInstance().newTransformer();
}
public void testWriteDocument() throws Exception {
Document document = documentBuilder.newDocument();
Element foo = document.createElement("foo");
Attr quux = document.createAttribute("quux");
quux.setValue("abc");
foo.setAttributeNode(quux);
foo.appendChild(document.createElement("bar"));
foo.appendChild(document.createElement("baz"));
document.appendChild(foo);
assertXmlEquals("<foo quux=\"abc\"><bar/><baz/></foo>", document);
}
public void testWriteSpecialCharactersInText() throws Exception {
Document document = documentBuilder.newDocument();
Element foo = document.createElement("foo");
foo.appendChild(document.createTextNode("5'8\", 5 < 6 & 7 > 3!"));
document.appendChild(foo);
assertXmlEquals("<foo>5'8\", 5 < 6 & 7 > 3!</foo>", document);
}
private String toXml(Document document) throws Exception {
StringWriter stringWriter = new StringWriter();
transformer.transform(new DOMSource(document), new StreamResult(stringWriter));
return stringWriter.toString();
}
private void assertXmlEquals(String expectedXml, Document document) throws Exception {
String actual = toXml(document);
String declarationA = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>";
String declarationB = "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>";
assertTrue(actual, actual.equals(declarationA + expectedXml)
|| actual.equals(declarationB + expectedXml));
}
}
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