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1
19
20 package org.openide.explorer.view;
21
22 import java.awt.Dimension  ;
23 import java.awt.EventQueue ;
24 import java.awt.event.ActionEvent ;
25 import java.beans.PropertyVetoException ;
26 import java.lang.ref.WeakReference ;
27 import java.lang.reflect.InvocationTargetException ;
28 import javax.swing.AbstractAction ;
29 import javax.swing.Action ;
30 import javax.swing.JFrame ;
31 import javax.swing.JOptionPane ;
32 import javax.swing.JScrollBar ;
33 import javax.swing.JScrollPane ;
34 import org.netbeans.junit.NbTestCase;
35 import org.openide.explorer.ExplorerManager;
36 import org.openide.nodes.*;
37
38
42 public final class TreeNodeLeakTest extends NbTestCase {
43
44 private TreeView treeView;
45 private ExplorerWindow testWindow;
46 private Node toSelect[] = new Node[6];
47
48 public TreeNodeLeakTest(String testName) {
49 super(testName);
50 }
51
52
53 private static Node createNode(String name, Node ... sub) {
54 Children ch = Children.LEAF;
55 if (sub != null) {
56 ch = new Children.Array();
57 ch.add(sub);
58 }
59 AbstractNode n = new AbstractNode(ch);
60 n.setName(name);
61 return n;
62 }
63
64
67 public void testNodesLeak() throws Exception {
68 assert !EventQueue.isDispatchThread();
69 final Node root = createNode("Root",
70 toSelect[0] = createNode("ch1",
71 toSelect[1] = createNode("A", (Node[])null),
72 toSelect[2] = createNode("B", (Node[])null)),
73 toSelect[3] = createNode("ch2",
74 toSelect[4] = createNode("A", (Node[])null),
75 toSelect[5] = createNode("B", (Node[])null)),
76 createNode("ch3",
77 createNode("A", (Node[])null),
78 createNode("B", (Node[])null))
79 );
80 EventQueue.invokeAndWait(new Runnable () { public void run() {
81 treeView = new BeanTreeView();
82 testWindow = new ExplorerWindow();
83 testWindow.getContentPane().add(treeView);
84 testWindow.pack();
85 testWindow.setVisible(true);
86 testWindow.getExplorerManager().setRootContext(root);
87 try {
88 testWindow.getExplorerManager().setSelectedNodes(toSelect);
89 } catch (PropertyVetoException pve) {
90 fail(pve.getMessage());
91 }
92 root.getChildren().remove( new Node[] {toSelect[0], toSelect[3]});
93 }});
94 EventQueue.invokeAndWait(new Runnable () { public void run() {}});
95
96 WeakReference wr = new WeakReference (toSelect[0]);
97 toSelect = null;
98 assertGC("Node freed", wr);
99 }
100
101
102 private static final class ExplorerWindow extends JFrame
103 implements ExplorerManager.Provider {
104
105 private final ExplorerManager explManager = new ExplorerManager();
106
107 ExplorerWindow() {
108 super("TreeView test"); }
110
111 public ExplorerManager getExplorerManager() {
112 return explManager;
113 }
114
115 }
116 }
117 |
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