MD Bookmarks: Implement search and selection in new data flow system

chrome/test/data/webui/md_bookmarks/test_util.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.
 
 /**
  * Replace the current body of the test with a new element.
  * @param {Element} element
  */
 function replaceBody(element) {
   PolymerTest.clearBody();
   document.body.appendChild(element);
 }
 
 /**
- * Convert a tree of bookmark nodes into a normalized lookup table of nodes.
+ * Convert a list of top-level bookmark nodes into a normalized lookup table of
+ * nodes.
+ * @param {...BookmarkTreeNode} nodes
  */
-function testTree(root) {
-  return bookmarks.util.normalizeNodes(root);
+function testTree(nodes) {
+  return bookmarks.util.normalizeNodes(
+      createFolder('0', Array.from(arguments)));
 }
 
 /**
  * Creates a folder with given properties.
  * @param {string} id
  * @param {Array<BookmarkTreeNode>} children
  * @param {Object=} config
  * @return {BookmarkTreeNode}
  */
 function createFolder(id, children, config) {
@@ skipping 63 matching lines @@
 
   if (config) {
     for (var key in config)
       props[key] = config[key];
   }
 
   element.dispatchEvent(new MouseEvent('mousedown', props));
   element.dispatchEvent(new MouseEvent('mouseup', props));
   element.dispatchEvent(new MouseEvent('click', props));
 }