public void C10_rootContainsTest()
 {
     ContainsNode root = new ContainsNode("root", null, true);
     Assert.AreNotEqual(null, root);
     Assert.AreEqual(0, root.getNbDocuments());
     Assert.AreEqual(null, root.next());
     Assert.AreEqual("root", root.getName());
     Assert.AreEqual(null, root.getParent());
 }