| /******************************************************************************* |
| * Copyright (c) 2013, 2015 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.core.tests.runtime.jobs; |
| |
| import java.io.*; |
| import junit.framework.*; |
| import org.eclipse.core.runtime.*; |
| import org.eclipse.core.runtime.jobs.Job; |
| import org.eclipse.core.tests.harness.FileSystemHelper; |
| import org.eclipse.core.tests.harness.TestBarrier; |
| import org.eclipse.core.tests.runtime.RuntimeTestsPlugin; |
| import org.eclipse.core.tests.session.SessionTestSuite; |
| |
| /** |
| * Test for bug 412138. |
| */ |
| public class Bug_412138 extends TestCase { |
| private static final String FILE_NAME = FileSystemHelper.getTempDir().append(Bug_412138.class.getName()).toOSString(); |
| |
| public static Test suite() { |
| SessionTestSuite suite = new SessionTestSuite(RuntimeTestsPlugin.PI_RUNTIME_TESTS, Bug_412138.class.getName()); |
| suite.addCrashTest(new Bug_412138("testRunScenario")); |
| suite.addTest(new Bug_412138("testVerifyResult")); |
| return suite; |
| } |
| |
| public Bug_412138(String name) { |
| super(name); |
| } |
| |
| public void testRunScenario() throws InterruptedException { |
| // delete the file so that we don't report previous results |
| new File(FILE_NAME).delete(); |
| final int[] status = {-1}; |
| final Job fakeBuild = new Job("Fake AutoBuildJob") { |
| @Override |
| protected IStatus run(IProgressMonitor monitor) { |
| try { |
| // synchronize on the job object |
| synchronized (this) { |
| // let the other thread call join on this job now |
| status[0] = TestBarrier.STATUS_RUNNING; |
| // go to sleep to allow the other thread to acquire JobManager.lock inside join |
| Thread.sleep(3000); |
| // call a method that requires JobManager.lock |
| isBlocking(); |
| return Status.OK_STATUS; |
| } |
| } catch (InterruptedException e) { |
| return new Status(IStatus.ERROR, RuntimeTestsPlugin.PI_RUNTIME_TESTS, e.getMessage(), e); |
| } |
| } |
| }; |
| Job job = new Job("Some job") { |
| @Override |
| protected IStatus run(IProgressMonitor monitor) { |
| TestBarrier.waitForStatus(status, TestBarrier.STATUS_RUNNING); |
| try { |
| fakeBuild.join(); |
| status[0] = TestBarrier.STATUS_DONE; |
| return Status.OK_STATUS; |
| } catch (InterruptedException e) { |
| return new Status(IStatus.ERROR, RuntimeTestsPlugin.PI_RUNTIME_TESTS, e.getMessage(), e); |
| } |
| } |
| }; |
| try { |
| job.schedule(); |
| fakeBuild.schedule(); |
| TestBarrier.waitForStatus(status, TestBarrier.STATUS_DONE); |
| job.join(); |
| fakeBuild.join(); |
| assertTrue(job.getResult() != null && job.getResult().isOK()); |
| assertTrue(fakeBuild.getResult() != null && fakeBuild.getResult().isOK()); |
| } catch (AssertionFailedError e) { |
| // the test failed so there is a deadlock, but this deadlock would prevent us |
| // from reporting test results; serialize the error to a helper file and |
| // exit JVM to "resolve" deadlock |
| try { |
| ObjectOutputStream stream = new ObjectOutputStream(new FileOutputStream(FILE_NAME)); |
| stream.writeObject(e); |
| stream.close(); |
| } catch (IOException e1) { |
| // we can't do anything if saving the error failed |
| // print the original error, so that there is at least some trace |
| e.printStackTrace(); |
| } |
| } finally { |
| // make sure the test always crashes to satisfy addCrashTest method contract |
| // test result will be verified by the testVerifyResult method |
| System.exit(1); |
| } |
| } |
| |
| public void testVerifyResult() throws IOException, ClassNotFoundException { |
| File file = new File(FILE_NAME); |
| // if the file does not exist, there was no deadlock so the whole test pass |
| if (file.exists()) { |
| try { |
| ObjectInputStream stream = new ObjectInputStream(new FileInputStream(FILE_NAME)); |
| AssertionFailedError e = (AssertionFailedError) stream.readObject(); |
| stream.close(); |
| throw e; |
| } catch (IOException | ClassNotFoundException e) { |
| // re-throw since file existence already says the test failed |
| throw e; |
| } finally { |
| // helper file is no longer needed |
| file.delete(); |
| } |
| } |
| } |
| } |