/**
   * Tries to delete an open project containing an irremovable file. Works only for Linux with
   * natives.
   */
  public void testDeleteOpenProjectLinux() {
    if (!(Platform.getOS().equals(Platform.OS_LINUX) && isReadOnlySupported())) return;

    IProject project = null;
    File projectRoot = null;
    IFolder folder = null;
    try {
      IWorkspace workspace = getWorkspace();
      project = workspace.getRoot().getProject(getUniqueString());
      folder = project.getFolder("a_folder");
      IFile file1 = folder.getFile("file1.txt");
      IFile file2 = project.getFile("file2.txt");

      ensureExistsInWorkspace(new IResource[] {file1, file2}, true);
      projectRoot = project.getLocation().toFile();

      // marks folder as read-only so its files cannot be deleted on Linux
      setReadOnly(folder, true);

      IFile projectFile = project.getFile(".project");
      assertTrue("1.2", projectFile.exists());
      assertTrue("1.3", projectFile.isSynchronized(IResource.DEPTH_INFINITE));

      try {
        project.delete(IResource.FORCE, getMonitor());
        fail("2.0 - should have failed");
      } catch (CoreException ce) {
        // success - a file couldn't be removed
      }
      assertTrue("2.1", project.exists());
      assertTrue("2.2", file1.exists());
      assertTrue("2.3", !file2.exists());
      assertTrue("2.5", folder.exists());
      assertTrue("2.6", projectFile.exists());
      assertTrue("2.7", project.isSynchronized(IResource.DEPTH_INFINITE));

      setReadOnly(folder, false);

      assertTrue("3.5", project.isSynchronized(IResource.DEPTH_INFINITE));
      try {
        project.delete(IResource.FORCE, getMonitor());
      } catch (CoreException ce) {
        ce.printStackTrace();
        fail("4.0", ce);
      }

      assertTrue("5.1", !project.exists());
      assertTrue("5.2", !file1.exists());
      assertTrue("5.3", file1.isSynchronized(IResource.DEPTH_INFINITE));
      assertTrue("5.4", project.isSynchronized(IResource.DEPTH_INFINITE));

      assertTrue("6.0", !projectRoot.exists());
    } finally {
      if (folder != null && folder.exists()) setReadOnly(folder, false);
      if (projectRoot != null) ensureDoesNotExistInFileSystem(projectRoot);
    }
  }