Added DomUtils

xml/src/test/java/org/springframework/xml/dom/DomUtilsTest.java

@@ -0,0 +1,75 @@
+/*
+ * Copyright 2007 the original author or authors.
+ *
+ * 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 org.springframework.xml.dom;
+
+import java.io.StringReader;
+import javax.xml.parsers.DocumentBuilder;
+import javax.xml.parsers.DocumentBuilderFactory;
+import javax.xml.transform.Source;
+import javax.xml.transform.Transformer;
+import javax.xml.transform.TransformerException;
+import javax.xml.transform.TransformerFactory;
+import javax.xml.transform.dom.DOMSource;
+import javax.xml.transform.sax.SAXSource;
+import javax.xml.transform.stream.StreamSource;
+
+import junit.framework.TestCase;
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+import org.xml.sax.InputSource;
+
+public class DomUtilsTest extends TestCase {
+
+    private Transformer transformer;
+
+    private static final String NAMESPACE = "http://springframework.org/spring-ws";
+
+    private static final String LOCAL_NAME = "Root";
+
+    private static final String XML = "<" + LOCAL_NAME + " xmlns='" + NAMESPACE + "'/>";
+
+    protected void setUp() throws Exception {
+        transformer = TransformerFactory.newInstance().newTransformer();
+    }
+
+    public void testGetRootElementDomSource() throws Exception {
+        DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
+        documentBuilderFactory.setNamespaceAware(true);
+        DocumentBuilder documentBuilder = documentBuilderFactory.newDocumentBuilder();
+        Document document = documentBuilder.newDocument();
+        Element rootElement = document.createElementNS(NAMESPACE, LOCAL_NAME);
+        document.appendChild(rootElement);
+
+        testSource(new DOMSource(document));
+    }
+
+    public void testGetRootElementSaxSource() throws Exception {
+        InputSource inputSource = new InputSource(new StringReader(XML));
+        testSource(new SAXSource(inputSource));
+    }
+
+    public void testGetRootElementStreamSource() throws Exception {
+        testSource(new StreamSource(new StringReader(XML)));
+    }
+
+    private void testSource(Source source) throws TransformerException {
+        Element result = DomUtils.getRootElement(source, transformer);
+        assertNotNull("No result", result);
+        assertEquals("Invalid namespace", NAMESPACE, result.getNamespaceURI());
+        assertEquals("Invalid local name", LOCAL_NAME, result.getLocalName());
+    }
+}