| /******************************************************************************* |
| * Copyright (c) 2005 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.concurrency; |
| |
| import java.lang.reflect.InvocationTargetException; |
| import junit.framework.TestCase; |
| import org.eclipse.core.resources.*; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.jface.dialogs.ProgressMonitorDialog; |
| import org.eclipse.swt.widgets.Shell; |
| import org.eclipse.ui.actions.WorkspaceModifyOperation; |
| |
| /** |
| * Tests the following sequence of events: |
| * 1) acquire a lock in the UI thread |
| * 2) execute an operation (e.g. MoveFilesAndFoldersOperation) which spawns a modal context thread |
| * 3) modal context tries to acquire lock held by UI thread |
| * |
| * This sequence would cause a deadlock, so an exception is thrown by ModalContext. |
| * This test asserts that the exception is thrown and that deadlock does not occur. |
| */ |
| public class TestBug108162 extends TestCase { |
| class LockAcquiringOperation extends WorkspaceModifyOperation { |
| public void execute(final IProgressMonitor pm) { |
| //empty operation is sufficient to cause deadlock |
| } |
| } |
| |
| private IWorkspace workspace = ResourcesPlugin.getWorkspace(); |
| |
| public TestBug108162() { |
| super(); |
| } |
| |
| public TestBug108162(String name) { |
| super(name); |
| } |
| |
| /** |
| * Performs the test |
| */ |
| public void testBug() throws CoreException { |
| workspace.run(new IWorkspaceRunnable() { |
| public void run(IProgressMonitor monitor) { |
| ProgressMonitorDialog dialog = new ProgressMonitorDialog(new Shell()); |
| try { |
| dialog.run(true, false, new LockAcquiringOperation()); |
| //should not succeed |
| assertTrue("Should not get here", false); |
| } catch (InvocationTargetException e) { |
| //this failure is expected because it tried to fork and block while owning a lock. |
| } catch (InterruptedException e) { |
| //ignore |
| } catch (IllegalStateException e) { |
| //this failure is expected because it tried to fork and block while owning a lock. |
| } |
| } |
| }, workspace.getRoot(), IResource.NONE, null); |
| } |
| } |