| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| |
| package com.sun.star.lib.util; |
| |
| import complexlib.ComplexTestCase; |
| import util.WaitUnreachable; |
| |
| public final class WeakMap_Test extends ComplexTestCase { |
| public String[] getTestMethodNames() { |
| return new String[] { "test" }; |
| } |
| |
| public void test() { |
| WeakMap m = new WeakMap(); |
| assure("", m.size() == 0); |
| assure("", m.isEmpty()); |
| assure("", !m.containsKey("key1")); |
| assure("", !m.containsValue(null)); |
| WaitUnreachable u1 = new WaitUnreachable(new Object()); |
| m.put("key1", u1.get()); |
| WaitUnreachable u2 = new WaitUnreachable(new Disposable()); |
| m.put("key2", u2.get()); |
| assure("", m.size() == 2); |
| assure("", !m.isEmpty()); |
| assure("", m.containsKey("key1")); |
| assure("", m.containsKey("key2")); |
| assure("", !m.containsKey("key3")); |
| assure("", m.containsValue(m.get("key1"))); |
| assure("", m.containsValue(m.get("key2"))); |
| assure("", WeakMap.getValue(m.get("key1")).equals(u1.get())); |
| assure("", WeakMap.getValue(m.get("key2")).equals(u2.get())); |
| assure("", m.values().size() == 2); |
| assure("", m.values().contains(m.get("key1"))); |
| assure("", m.values().contains(m.get("key2"))); |
| u1.waitUnreachable(); |
| assure("", WeakMap.getValue(m.get("key1")) == null); |
| ((Disposable) u2.get()).dispose(); |
| assure("", WeakMap.getValue(m.get("key2")) == null); |
| m.clear(); |
| u2.waitUnreachable(); |
| assure("", m.size() == 0); |
| m.put("key2", new Object()); |
| assure("", m.size() == 1); |
| } |
| |
| // This simple class (single listener, no synchronization) exploits |
| // knowledge about the implementation of WeakMap: |
| private static final class Disposable implements DisposeNotifier { |
| public void addDisposeListener(DisposeListener listener) { |
| this.listener = listener; |
| } |
| |
| public void dispose() { |
| if (listener != null) { |
| listener.notifyDispose(this); |
| } |
| } |
| |
| private DisposeListener listener = null; |
| } |
| } |