001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003: *
004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005: *
006: * The contents of this file are subject to the terms of either the GNU
007: * General Public License Version 2 only ("GPL") or the Common
008: * Development and Distribution License("CDDL") (collectively, the
009: * "License"). You may not use this file except in compliance with the
010: * License. You can obtain a copy of the License at
011: * http://www.netbeans.org/cddl-gplv2.html
012: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013: * specific language governing permissions and limitations under the
014: * License. When distributing the software, include this License Header
015: * Notice in each file and include the License file at
016: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
017: * particular file as subject to the "Classpath" exception as provided
018: * by Sun in the GPL Version 2 section of the License file that
019: * accompanied this code. If applicable, add the following below the
020: * License Header, with the fields enclosed by brackets [] replaced by
021: * your own identifying information:
022: * "Portions Copyrighted [year] [name of copyright owner]"
023: *
024: * Contributor(s):
025: *
026: * The Original Software is NetBeans. The Initial Developer of the Original
027: * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
028: * Microsystems, Inc. All Rights Reserved.
029: *
030: * If you wish your version of this file to be governed by only the CDDL
031: * or only the GPL Version 2, indicate your decision by adding
032: * "[Contributor] elects to include this software in this distribution
033: * under the [CDDL or GPL Version 2] license." If you do not indicate a
034: * single choice of license, a recipient has the option to distribute
035: * your version of this file under either the CDDL, the GPL Version 2 or
036: * to extend the choice of license to its licensees as provided above.
037: * However, if you add GPL Version 2 code and therefore, elected the GPL
038: * Version 2 license, then the option applies only if the new code is
039: * made subject to such option by the copyright holder.
040: */
041:
042: package org.openide.explorer.view;
043:
044: import java.lang.ref.WeakReference;
045: import java.util.LinkedList;
046: import java.util.List;
047: import org.netbeans.junit.NbTestCase;
048: import org.openide.nodes.AbstractNode;
049: import org.openide.nodes.Children;
050: import org.openide.nodes.Node;
051:
052: /*
053: * Tests for class NodeListModel
054: */
055: public class NodeListModelTest extends NbTestCase {
056:
057: private static final int NO_OF_NODES = 20;
058:
059: public NodeListModelTest(String name) {
060: super (name);
061: }
062:
063: protected boolean runInEQ() {
064: return true;
065: }
066:
067: /*
068: * Tests whether children of the root node are
069: * kept in the memory after the root is passed
070: * to the constructor of NodeListModel.
071: */
072: public void testNodesAreReferenced() {
073:
074: WeakReference[] tn;
075:
076: Node c = new AbstractNode(new CNodeChildren());
077: NodeListModel model = new NodeListModel(c);
078:
079: tn = new WeakReference[model.getSize()];
080: for (int i = 0; i < model.getSize(); i++) {
081: tn[i] = new WeakReference(model.getElementAt(i));
082: }
083:
084: assertTrue("Need to have more than one child", tn.length > 0);
085:
086: boolean fail;
087: try {
088: assertGC("First node should not be gone", tn[0]);
089: fail = true;
090: } catch (Error err) {
091: fail = false;
092: }
093: if (fail) {
094: fail("First node garbage collected!!! " + tn[0].get());
095: }
096:
097: for (int i = 0; i < tn.length; i++) {
098: // else fail
099: assertNotNull("One of the nodes was gone. Index: " + i,
100: tn[i].get());
101: }
102: }
103:
104: /**
105: * Tests proper initialization in constructors.
106: */
107: public void testConstructors() {
108: Node c = new AbstractNode(new CNodeChildren());
109: NodeListModel model = new NodeListModel(c);
110:
111: // the following line used to fail if the
112: // no parameter costructor does not initialize
113: // childrenCount
114: model.getSize();
115: }
116:
117: /*
118: * Children for testNodesAreReferenced.
119: */
120: private static class CNodeChildren extends Children.Keys {
121: public CNodeChildren() {
122: List myKeys = new LinkedList();
123: for (int i = 0; i < NO_OF_NODES; i++) {
124: myKeys.add(new Integer(i));
125: }
126:
127: setKeys(myKeys);
128: }
129:
130: protected Node[] createNodes(Object key) {
131: AbstractNode an = new AbstractNode(Children.LEAF);
132: an.setName(key.toString());
133: return new Node[] { an };
134: }
135: }
136: }
|