Attachment 163463 Details for Bug 294894 – test take 3

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[patch] test take 3

bug_294894.patch (text/plain), 6.23 KB, created by James Blackburn

on 2010-03-30 19:33:21 EDT

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Creator: James Blackburn

Created: 2010-03-30 19:33:21 EDT

Size: 6.23 KB

patch

obsolete

>### Eclipse Workspace Patch 1.0
>#P org.eclipse.ui.tests
>Index: Eclipse UI Tests/org/eclipse/ui/tests/concurrency/Bug_294894.java
>===================================================================
>RCS file: Eclipse UI Tests/org/eclipse/ui/tests/concurrency/Bug_294894.java
>diff -N Eclipse UI Tests/org/eclipse/ui/tests/concurrency/Bug_294894.java
>--- /dev/null	1 Jan 1970 00:00:00 -0000
>+++ Eclipse UI Tests/org/eclipse/ui/tests/concurrency/Bug_294894.java	1 Jan 1970 00:00:00 -0000
>@@ -0,0 +1,194 @@
>+/*******************************************************************************
>+ * Copyright (c) 2009 Broadcom Coporation 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:
>+ *    James Blackburn (Broadcom Corp.) - initial API and implementation
>+ *******************************************************************************/
>+
>+package org.eclipse.ui.tests.concurrency;
>+
>+import java.io.IOException;
>+import java.io.OutputStream;
>+
>+import java.io.PrintStream;
>+
>+import junit.framework.AssertionFailedError;
>+import org.eclipse.core.runtime.CoreException;
>+import org.eclipse.core.runtime.IStatus;
>+
>+import java.io.*;
>+import junit.framework.TestCase;
>+import org.eclipse.core.resources.*;
>+import org.eclipse.core.runtime.*;
>+import org.eclipse.core.runtime.jobs.Job;
>+import org.eclipse.swt.widgets.Display;
>+
>+/**
>+ * Test case for resources plugin lock-up
>+ */
>+public class Bug_294894 extends TestCase {
>+
>+	/**
>+	 * Fails the test due to the given throwable.
>+	 */
>+	public static void fail(String message, Throwable e) {
>+		// If the exception is a CoreException with a multistatus
>+		// then print out the multistatus so we can see all the info.
>+		if (e instanceof CoreException) {
>+			IStatus status = ((CoreException) e).getStatus();
>+			//if the status does not have an exception, print the stack for this one
>+			if (status.getException() == null)
>+				e.printStackTrace();
>+			write(status, 0);
>+		} else
>+			e.printStackTrace();
>+		AssertionFailedError assertFail = new AssertionFailedError(message + ": " + e);
>+		assertFail.initCause(e);
>+		throw assertFail;
>+	}
>+
>+	private static void indent(OutputStream output, int indent) {
>+		for (int i = 0; i < indent; i++)
>+			try {
>+				output.write("\t".getBytes());
>+			} catch (IOException e) {
>+				// ignore
>+			}
>+	}
>+	private static void write(IStatus status, int indent) {
>+		PrintStream output = System.out;
>+		indent(output, indent);
>+		output.println("Severity: " + status.getSeverity());
>+
>+		indent(output, indent);
>+		output.println("Plugin ID: " + status.getPlugin());
>+
>+		indent(output, indent);
>+		output.println("Code: " + status.getCode());
>+
>+		indent(output, indent);
>+		output.println("Message: " + status.getMessage());
>+
>+		if (status.getException() != null) {
>+			indent(output, indent);
>+			output.print("Exception: ");
>+			status.getException().printStackTrace(output);
>+		}
>+
>+		if (status.isMultiStatus()) {
>+			IStatus[] children = status.getChildren();
>+			for (int i = 0; i < children.length; i++)
>+				write(children[i], indent + 1);
>+		}
>+	}
>+
>+	public void appendContentsWithException(IProject project) {
>+		int count = 5;
>+		final IFile targets[] = new IFile[count];
>+		for (int i = 0; i < count; i++)
>+			targets[i] = project.getFile("file" + i);
>+		try {
>+			for (int i = 0; i < count; i++)
>+				if (!targets[i].exists())
>+					targets[i].create(getContents("abc"), false, null);
>+		} catch (CoreException e) {
>+			fail("1.0");
>+		}
>+
>+		// Run [count] failing append content jobs
>+		Job[] js = new Job[count];
>+		for (int i = 0; i < count; i++) {
>+			final int j = i;
>+			js[i] = new Job("bad append") {
>+				protected IStatus run(IProgressMonitor monitor) {
>+					try {
>+						targets[j].appendContents(new InputStream() {
>+							public int read() throws IOException {
>+								throw new IOException("Stream closed");
>+							}
>+						}, false, false, null);
>+					} catch (CoreException e) {
>+						//expected to fail due to invalid input stream
>+					}
>+					return Status.OK_STATUS;
>+				}
>+			};
>+			js[i].schedule();
>+		}
>+	}
>+
>+	public InputStream getContents(String text) {
>+		return new ByteArrayInputStream(text.getBytes());
>+	}
>+
>+	public void testDeadLockFail() throws Exception {
>+		final String proj = "testProject";
>+
>+		final IWorkspace workspace = ResourcesPlugin.getWorkspace();
>+		final IProject project = workspace.getRoot().getProject(proj);
>+		final IFile file = project.getFile("foo");
>+		workspace.run(new IWorkspaceRunnable() {
>+			public void run(IProgressMonitor monitor) throws CoreException {
>+				project.create(null);
>+				project.open(null);
>+				file.create(new ByteArrayInputStream(new byte[] {'a'}), true, null);
>+			}
>+		}, null);
>+
>+		for (int i = 0; i < 10000; i++) {
>+			// Run this in a job holding the appropriate scheduling rule
>+			Job j = new Job("jobwithfilelock") {
>+
>+				protected IStatus run(IProgressMonitor monitor) {
>+
>+					// Job to deadlock with this: Display -> Resource Lock
>+					Job j2 = new Job("Workspace refresh") {
>+						protected IStatus run(IProgressMonitor monitor) {
>+							Display.getDefault().syncExec(new Runnable() {
>+								public void run() {
>+									try {
>+										appendContentsWithException(project);
>+										workspace.getRoot().refreshLocal(IResource.DEPTH_INFINITE, null);
>+									} catch (Exception e) {
>+										fail("refresh run", e);
>+									}
>+								}
>+							});
>+							return Status.OK_STATUS;
>+						}
>+					};
>+
>+					j2.schedule();
>+					try {
>+						Thread.sleep(1);
>+					} catch (Exception e) {
>+						fail("Sleep failed", e);
>+					}
>+
>+					// Grab Display and refresh the file... [Resource -> Display ]
>+					Display.getDefault().syncExec(new Runnable() {
>+						public void run() {
>+							try {
>+								file.refreshLocal(IResource.DEPTH_ONE, null);
>+							} catch (Exception e) {
>+								fail("syncExec fail", e);
>+							}
>+						}
>+					});
>+					return Status.OK_STATUS;
>+				}
>+			};
>+			j.setRule(file);
>+			j.schedule();
>+			j.join();
>+
>+			// Now try to append to the file
>+			file.appendContents(new ByteArrayInputStream(new byte[] {'a'}), IResource.FORCE, null);
>+		}
>+	}
>+
>+}
>\ No newline at end of file

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