@Test
  public void testDeleteTrashedParentPageWithExplicitTrashedChildPage() throws Exception {

    WikiPage[] pages =
        WikiTestUtil.addTrashedPageWithChildPage(_group.getGroupId(), _node.getNodeId(), true);

    WikiPage parentPage = pages[0];
    WikiPage childPage = pages[1];

    WikiPageLocalServiceUtil.deletePage(parentPage);

    try {
      WikiPageLocalServiceUtil.getPage(parentPage.getResourcePrimKey());

      Assert.fail();
    } catch (NoSuchPageResourceException nspre) {
      childPage = WikiPageLocalServiceUtil.getPageByPageId(childPage.getPageId());

      Assert.assertNull(childPage.fetchParentPage());
    }
  }
  @Test
  public void testDeleteTrashedPageWithRestoredChildPage() throws Exception {
    WikiPage[] pages =
        WikiTestUtil.addTrashedPageWithChildPage(_group.getGroupId(), _node.getNodeId(), true);

    WikiPage parentPage = pages[0];
    WikiPage childPage = pages[1];

    WikiPageLocalServiceUtil.restorePageFromTrash(TestPropsValues.getUserId(), childPage);

    WikiPageLocalServiceUtil.deletePage(parentPage);

    try {
      WikiPageLocalServiceUtil.getPage(parentPage.getResourcePrimKey());

      Assert.fail();
    } catch (NoSuchPageResourceException nspre) {
      childPage = WikiPageLocalServiceUtil.getPage(childPage.getResourcePrimKey());

      Assert.assertNull(childPage.fetchParentPage());
      Assert.assertEquals(WorkflowConstants.STATUS_APPROVED, childPage.getStatus());
    }
  }
  public static boolean contains(
      PermissionChecker permissionChecker, WikiPage page, String actionId) {

    Boolean hasPermission =
        StagingPermissionUtil.hasPermission(
            permissionChecker,
            page.getGroupId(),
            WikiPage.class.getName(),
            page.getPageId(),
            PortletKeys.WIKI,
            actionId);

    if (hasPermission != null) {
      return hasPermission.booleanValue();
    }

    if (page.isDraft()) {
      if (actionId.equals(ActionKeys.VIEW)
          && !contains(permissionChecker, page, ActionKeys.UPDATE)) {

        return false;
      }

      if (actionId.equals(ActionKeys.DELETE)
          && (page.getStatusByUserId() == permissionChecker.getUserId())) {

        return true;
      }
    } else if (page.isPending()) {
      hasPermission =
          WorkflowPermissionUtil.hasPermission(
              permissionChecker,
              page.getGroupId(),
              WikiPage.class.getName(),
              page.getResourcePrimKey(),
              actionId);

      if ((hasPermission != null) && hasPermission.booleanValue()) {
        return true;
      }
    } else if (page.isScheduled()) {
      if (actionId.equals(ActionKeys.VIEW)
          && !contains(permissionChecker, page, ActionKeys.UPDATE)) {

        return false;
      }
    }

    if (actionId.equals(ActionKeys.VIEW)) {
      WikiPage redirectPage = page.fetchRedirectPage();

      if (redirectPage != null) {
        page = redirectPage;
      }

      if (PropsValues.PERMISSIONS_VIEW_DYNAMIC_INHERITANCE) {
        WikiNode node = page.getNode();

        if (!WikiNodePermission.contains(permissionChecker, node, actionId)) {

          return false;
        }

        while (page != null) {
          if (!_hasPermission(permissionChecker, page, actionId)) {
            return false;
          }

          page = page.fetchParentPage();
        }

        return true;
      }
    }

    return _hasPermission(permissionChecker, page, actionId);
  }