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
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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
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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.
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040: */
041:
042: package org.netbeans.spi.project.support.ant;
043:
044: import java.lang.ref.Reference;
045: import java.lang.ref.WeakReference;
046: import java.util.Collections;
047: import java.util.HashMap;
048: import org.netbeans.junit.NbTestCase;
049: import org.openide.util.test.MockChangeListener;
050:
051: /**
052: * @author Jesse Glick
053: */
054: public class FilterPropertyProviderTest extends NbTestCase {
055:
056: public FilterPropertyProviderTest(String name) {
057: super (name);
058: }
059:
060: public void testDelegatingPropertyProvider() throws Exception {
061: AntBasedTestUtil.TestMutablePropertyProvider mpp = new AntBasedTestUtil.TestMutablePropertyProvider(
062: new HashMap<String, String>());
063: DPP dpp = new DPP(mpp);
064: MockChangeListener l = new MockChangeListener();
065: dpp.addChangeListener(l);
066: assertEquals("initially empty", Collections.emptyMap(), dpp
067: .getProperties());
068: mpp.defs.put("foo", "bar");
069: mpp.mutated();
070: l.assertEvent();
071: assertEquals("now right contents", Collections.singletonMap(
072: "foo", "bar"), dpp.getProperties());
073: AntBasedTestUtil.TestMutablePropertyProvider mpp2 = new AntBasedTestUtil.TestMutablePropertyProvider(
074: new HashMap<String, String>());
075: mpp2.defs.put("foo", "bar2");
076: dpp.setDelegate_(mpp2);
077: l.msg("got a change from new delegate").assertEvent();
078: assertEquals("right contents from new delegate", Collections
079: .singletonMap("foo", "bar2"), dpp.getProperties());
080: mpp2.defs.put("foo", "bar3");
081: mpp2.mutated();
082: l.msg("got a change in new delegate").assertEvent();
083: assertEquals("right contents", Collections.singletonMap("foo",
084: "bar3"), dpp.getProperties());
085: Reference<?> r = new WeakReference<Object>(mpp);
086: mpp = null;
087: assertGC("old delegates can be collected", r);
088: r = new WeakReference<Object>(dpp);
089: dpp = null; // but not mpp2
090: assertGC("delegating PP can be collected when delegate is not",
091: r); // #50572
092: }
093:
094: private static final class DPP extends FilterPropertyProvider {
095: public DPP(PropertyProvider pp) {
096: super (pp);
097: }
098:
099: public void setDelegate_(PropertyProvider pp) {
100: setDelegate(pp);
101: }
102: }
103:
104: }
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