// Copyright 2006, 2007, 2008, 2010 The Apache Software Foundation
//
// Licensed 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 org.apache.tapestry5.ioc.internal.services;
import java.lang.ref.WeakReference;
import org.apache.tapestry5.ioc.internal.services.UpdateListenerHubImpl;
import org.apache.tapestry5.ioc.test.TestBase;
import org.apache.tapestry5.services.UpdateListener;
import org.apache.tapestry5.services.UpdateListenerHub;
import org.testng.annotations.Test;
public class UpdateListenerHubImplTest extends TestBase
{
@Test
public void add_listener_and_invoke() throws Exception
{
UpdateListener listener = newMock(UpdateListener.class);
UpdateListenerHub hub = new UpdateListenerHubImpl();
listener.checkForUpdates();
replay();
hub.addUpdateListener(listener);
hub.fireCheckForUpdates();
verify();
}
@Test
public void weak_references_are_not_invoked_once_clears() throws Exception
{
UpdateListener listener = new UpdateListener()
{
public void checkForUpdates()
{
throw new RuntimeException("checkForUpdates() should not be invoked on a dead reference.");
}
};
WeakReference<UpdateListener> ref = new WeakReference<UpdateListener>(listener);
UpdateListenerHub hub = new UpdateListenerHubImpl();
hub.addUpdateListener(listener);
listener = null;
while (ref.get() != null)
{
System.gc();
}
hub.fireCheckForUpdates();
}
}