[MD Bookmarks] Handle bookmark moves.

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

 // Copyright 2017 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('selection state', function() {
   var state;
   var action;
 
   function select(items, anchor, add) {
     return {
@@ skipping 68 matching lines @@
     assertDeepEquals({}, state.items);
   });
 });
 
 suite('closed folder state', function() {
   var nodes;
   var state;
   var action;
 
   setup(function() {
-    nodes = testTree(createFolder('1', [
-      createFolder('2', []),
-    ]));
+    nodes = testTree(
+        createFolder(
+            '1',
+            [
+              createFolder('2', []),
+              createItem('3'),
+            ]),
+        createFolder('4', []));
     state = {};
   });
 
   test('toggle folder open state', function() {
     action = bookmarks.actions.changeFolderOpen('2', false);
     state =
         bookmarks.ClosedFolderState.updateClosedFolders(state, action, nodes);
     assertFalse(!!state['1']);
     assertTrue(state['2']);
   });
 
   test('select folder with closed parent', function() {
     // Close '1'
     action = bookmarks.actions.changeFolderOpen('1', false);
     state =
         bookmarks.ClosedFolderState.updateClosedFolders(state, action, nodes);
     assertTrue(state['1']);
     assertFalse(!!state['2']);
 
     // Should re-open when '2' is selected.
     action = bookmarks.actions.selectFolder('2');
     state =
         bookmarks.ClosedFolderState.updateClosedFolders(state, action, nodes);
     assertFalse(!!state['1']);
   });
+
+  test('move nodes in a closed folder', function() {
+    // Moving bookmark items should not open folders.
+    state = {'1': true};
+    action = bookmarks.actions.moveBookmark('3', '1', 1, '1', 0);
+    state =
+        bookmarks.ClosedFolderState.updateClosedFolders(state, action, nodes);
+
+    assertTrue(state['1']);
+
+    // Moving folders should open their parents.
+    state = {'1': true, '2': true};
+    action = bookmarks.actions.moveBookmark('4', '2', 0, '0', 1);
+    state =
+        bookmarks.ClosedFolderState.updateClosedFolders(state, action, nodes);
+    assertFalse(!!state['1']);
+    assertFalse(!!state['2']);
+  });
 });
 
 suite('selected folder', function() {
   var nodes;
   var state;
   var action;
 
   setup(function() {
     nodes = testTree(createFolder('1', [
       createFolder('2', []),
@@ skipping 66 matching lines @@
 
   test('updates when a node is deleted', function() {
     action = bookmarks.actions.removeBookmark('3', '1', 1);
     state = bookmarks.NodeState.updateNodes(state, action);
 
     assertDeepEquals(['2', '4'], state['1'].children);
 
     // TODO(tsergeant): Deleted nodes should be removed from the nodes map
     // entirely.
   });
+
+  test('updates when a node is moved', function() {
+    // Move within the same folder backwards.
+    action = bookmarks.actions.moveBookmark('3', '1', 0, '1', 1);
+    state = bookmarks.NodeState.updateNodes(state, action);
+
+    assertDeepEquals(['3', '2', '4'], state['1'].children);
+
+    // Move within the same folder forwards.
+    action = bookmarks.actions.moveBookmark('3', '1', 2, '1', 0);
+    state = bookmarks.NodeState.updateNodes(state, action);
+
+    assertDeepEquals(['2', '4', '3'], state['1'].children);
+
+    // Move between different folders.
+    action = bookmarks.actions.moveBookmark('4', '5', 0, '1', 1);
+    state = bookmarks.NodeState.updateNodes(state, action);
+
+    assertDeepEquals(['2', '3'], state['1'].children);
+    assertDeepEquals(['4'], state['5'].children);
+  });
 });
 
 suite('search state', function() {
   var state;
 
   setup(function() {
     // Search touches a few different things, so we test using the entire state:
     state = bookmarks.util.createEmptyState();
     state.nodes = testTree(createFolder('1', [
       createFolder(
@@ skipping 42 matching lines @@
     // Case 2: Clear search by selecting a new folder.
     action = bookmarks.actions.selectFolder('2');
     var selectedState = bookmarks.reduceAction(searchedState, action);
 
     assertEquals('2', selectedState.selectedFolder);
     assertDeepEquals(['3'], bookmarks.util.getDisplayedList(selectedState));
     assertEquals('', selectedState.search.term);
     assertDeepEquals([], selectedState.search.results);
   });
 });