///*******************************************************************************
// * Copyright (c) 2005, 2006 IBM Corporation and others.
// * All rights reserved. This program and the accompanying materials
// * are made available under the terms of the Eclipse Public License v1.0
// * which accompanies this distribution, and is available at
// * http://www.eclipse.org/legal/epl-v10.html
// *
// * Contributors:
// * IBM Corporation - initial API and implementation
// *******************************************************************************/
//
//package org.eclipse.ui.tests.commands;
//
//import java.lang.ref.WeakReference;
//import java.util.Map;
//
//import org.eclipse.core.commands.Command;
//import org.eclipse.ui.commands.AbstractHandler;
//import org.eclipse.ui.commands.HandlerSubmission;
//import org.eclipse.ui.commands.ICommandService;
//import org.eclipse.ui.commands.IHandler;
//import org.eclipse.ui.commands.IWorkbenchCommandSupport;
//import org.eclipse.ui.commands.Priority;
//import org.eclipse.ui.tests.harness.util.UITestCase;
//
///**
// * This tests whether we are leaking handlers after their submission has been
// * removed.
// *
// * @since 3.1
// */
//public class Bug87856Test extends UITestCase {
//
// /**
// * Constructs a new instance of <code>Bug87856Test</code>.
// *
// * @param name
// * The name of the test
// */
// public Bug87856Test(final String name) {
// super(name);
// }
//
// /**
// * Tests whether the workbench command support (or its dependencies) will
// * leak handlers when the process loop is run. Basically, we're checking to
// * see that removing a handler submission really works.
// */
// public final void testHandlerLeak() {
// final IWorkbenchCommandSupport commandSupport = fWorkbench
// .getCommandSupport();
// final ICommandService commandService = (ICommandService) fWorkbench
// .getAdapter(ICommandService.class);
// final String commandId = Bug87856Test.class.getName();
// final Command command = commandService.getCommand(commandId);
//
// // Submit a handler.
// IHandler handler = new AbstractHandler() {
//
// public Object execute(Map parameterValuesByName)
// throws org.eclipse.ui.commands.ExecutionException {
// // Do nothing
// return null;
// }
//
// };
// HandlerSubmission submission = new HandlerSubmission(null, null, null,
// command.getId(), handler, Priority.MEDIUM);
// commandSupport.addHandlerSubmission(submission);
//
// /*
// * Remove the handler with no replacement, and hold on to the handler
// * via a weak reference.
// */
// commandSupport.removeHandlerSubmission(submission);
// submission = null;
// final WeakReference reference = new WeakReference(handler);
// handler = null;
//
// // Attempt to force garbage collection.
// System.gc();
// System.runFinalization();
// Thread.yield();
// System.gc();
// System.runFinalization();
// Thread.yield();
// System.gc();
// System.runFinalization();
// Thread.yield();
//
// // Check to see if the reference has been cleared.
// assertTrue(
// "We should not hold on to a handler after the submission has been removed.",
// reference.isEnqueued() || (reference.get() == null));
// }
//}