[MD Bookmarks] Edit Bookmarks.

chrome/test/data/webui/md_bookmarks/store_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-store>', function() {
   var store;
   var TEST_TREE;
 
   setup(function() {
     TEST_TREE = {
@@ skipping 153 matching lines @@
     store.onBookmarkRemoved_('2', {parentId:'1', index:'0'});
     assertTrue(store.idToNodeMap_['1'].isSelected);
     assertEquals('1', store.selectedId);
 
     // A folder with selected folder in it gets removed.
     store.selectedId = '3';
     store.onBookmarkRemoved_('1', {parentId:'0', index:'0'});
     assertTrue(store.idToNodeMap_['0'].isSelected);
     assertEquals('0', store.selectedId);
   });
+
+  test('bookmark gets updated after editing', function() {
+    // Edit title updates idToNodeMap_ properly.
+    store.onBookmarkChanged_('4', {'title': 'test'});
+    assertEquals('test', store.idToNodeMap_['4'].title);
+    assertEquals('link4', store.idToNodeMap_['4'].url);
+
+    // Edit url updates idToNodeMap_ properly.
+    store.onBookmarkChanged_('5', {'url': 'http://www.google.com'});
+    assertEquals(undefined, store.idToNodeMap_['5'].title);
+    assertEquals('http://www.google.com', store.idToNodeMap_['5'].url);
+
+    // Edit url and title updates idToNodeMap_ properly.
+    store.onBookmarkChanged_(
+        '2', {'title': 'test', 'url': 'http://www.google.com'});
+    assertEquals('test', store.idToNodeMap_['2'].title);
+    assertEquals('http://www.google.com', store.idToNodeMap_['2'].url);
+  });

[jiaxi, 2017/01/06 06:03:53]

As discussed offline, integration test with something mocks the reactions of API
will be in another patch.

 });