@Test
public void testOutputDocumentNamespaces() {
Element emt = new Element("root", Namespace.getNamespace("ns", "myns"));
Namespace ans = Namespace.getNamespace("ans", "attributens");
emt.addNamespaceDeclaration(ans);
emt.addNamespaceDeclaration(Namespace.getNamespace("two", "two"));
emt.setAttribute(new Attribute("att", "val", ans));
emt.addContent(new Element("child", Namespace.getNamespace("", "childuri")));
Document doc = new Document(emt);
roundTripDocument(doc);