DepTreeNode implements Cloneable, Serializable { public void add(DepTreeNode child) { if (children == null) { children = new HashMap<String, DepTreeNode>(); } children.put(child.getName(), child); child.setParent(this); } DepTreeNode(String name, URI uri); String getName(); long lastModified(); long lastModifiedDep(); long lastModifiedDepTree(); DepTreeNode getParent(); DepTreeNode getRoot(); String[] getDefineDepArray(); String[] getRequireDepArray(); String[] getDependentFeatures(); String getParentPath(); String getFullPathName(); void add(DepTreeNode child); void overlay(DepTreeNode node); void addAll(Collection<DepTreeNode> children); DepTreeNode createOrGet(String path, URI uri); DepTreeNode getDescendent(String path); void remove(DepTreeNode child); void removeAll(); Map<String, DepTreeNode> getChildren(); DepTreeNode getChild(String name); void prune(); void setDependencies(String[] defineDependencies, String[] requireDependencies, String[] dependentFeatures, long lastModifiedFile, long lastModifiedDep); @Override String toString(); String toStringTree(); @Override DepTreeNode clone(); IConfig getConfig();  }
@Test public void testAdd() { DepTreeNode parent = new DepTreeNode("parent", null); DepTreeNode child = new DepTreeNode("child", null); assertEquals(null, child.getParent()); parent.add(child); assertEquals(parent, child.getParent()); assertEquals(child, parent.getChild("child")); try { parent.add(new DepTreeNode("", null)); fail("Exception not thrown"); } catch (IllegalStateException ex) {} }