MD Bookmarks: Scroll and select items that are added to the main list

chrome/test/data/webui/md_bookmarks/list_test.js

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 suite('<bookmarks-list>', function() {
   var list;
   var store;
 
   setup(function() {
     store = new bookmarks.TestStore({
@@ skipping 52 matching lines @@
   test('adds, deletes, and moves update displayedList_', function() {
     list.displayedIds_ = ['1', '7', '3', '5'];
     assertDeepEquals(list.displayedIds_, list.displayedList_.map(n => n.id));
 
     list.displayedIds_ = ['1', '3', '5'];
     assertDeepEquals(list.displayedIds_, list.displayedList_.map(n => n.id));
 
     list.displayedIds_ = ['1', '3', '7', '5'];
     assertDeepEquals(list.displayedIds_, list.displayedList_.map(n => n.id));
   });
+
+  test('selects all valid IDs on highlight-items', function() {
+    list.fire('highlight-items', ['10', '1', '3', '9']);
+    assertEquals('select-items', store.lastAction.name);
+    assertEquals('1', store.lastAction.anchor);
+    assertDeepEquals(['1', '3'], store.lastAction.items);
+  });
 });
 
 suite('<bookmarks-list> integration test', function() {
   var list;
   var store;
   var items;
 
   setup(function() {
     store = new bookmarks.TestStore({
       nodes: testTree(createFolder(
@@ skipping 62 matching lines @@
     assertDeepEquals(
         ['1', '5', '7', '9'], normalizeSet(store.data.selection.items));
     assertDeepEquals('5', store.data.selection.anchor);
 
     customClick(items[0], {ctrlKey: true, shiftKey: true});
     assertDeepEquals(
         ['1', '3', '5', '7', '9'], normalizeSet(store.data.selection.items));
     assertDeepEquals('5', store.data.selection.anchor);
   });
 });