MD Bookmarks: Disable 'Open in Incognito Window' when Incognito is disabled

chrome/test/data/webui/md_bookmarks/policy_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('Incognito policy', function() {
+  var store;
+  var app;
+
+  setup(function() {
+    store = new bookmarks.TestStore({
+      nodes: testTree(createFolder(
+          '1',
+          [
+            createItem('11'),
+          ])),
+      selectedFolder: '1',
+    });
+    store.setReducersEnabled(true);
+    store.expectAction('set-incognito-availability');
+    bookmarks.Store.instance_ = store;
+
+    app = document.createElement('bookmarks-app');
+    replaceBody(app);
+  });
+
+  test('updates when changed by the browser', function() {
+    var commandManager = bookmarks.CommandManager.getInstance();
+    // Incognito is disabled during testGenPreamble(). Wait for the front-end to
+    // load the config.
+    return store.waitForAction('set-incognito-availability').then(action => {
+      assertEquals(IncognitoAvailability.DISABLED,
+          store.data.prefs.incognitoAvailability);
+      assertFalse(
+          commandManager.canExecute(Command.OPEN_INCOGNITO, new Set(['11'])));
+
+      return cr.sendWithPromise(
+          'testSetIncognito', IncognitoAvailability.ENABLED);
+    }).then(() => {
+      assertEquals(IncognitoAvailability.ENABLED,
+          store.data.prefs.incognitoAvailability);
+      assertTrue(
+          commandManager.canExecute(Command.OPEN_INCOGNITO, new Set(['11'])));
+    });
+  });
+});