The Tor Browser / file revision

 /* Any copyright is dedicated to the Public Domain.

    http://creativecommons.org/publicdomain/zero/1.0/ */

 function run_test()

 {

   const ROOTS = [

     PlacesUtils.bookmarksMenuFolderId,

     PlacesUtils.toolbarFolderId,

     PlacesUtils.unfiledBookmarksFolderId,

     PlacesUtils.tagsFolderId,

     PlacesUtils.placesRootId

   ];

   for (let root of ROOTS) {

     do_check_true(PlacesUtils.isRootItem(root));

     try {

       PlacesUtils.bookmarks.removeItem(root);

       do_throw("Trying to remove a root should throw");

     } catch (ex) {}

     try {

       PlacesUtils.bookmarks.moveItem(root, PlacesUtils.placesRootId, 0);

       do_throw("Trying to move a root should throw");

     } catch (ex) {}

     try {

       PlacesUtils.bookmarks.removeFolderChildren(root);

       if (root == PlacesUtils.placesRootId)

         do_throw("Trying to remove children of the main root should throw");

     } catch (ex) {

       if (root != PlacesUtils.placesRootId)

         do_throw("Trying to remove children of other roots should not throw");

     }

   }

 }