diff --git a/sitewide/test/groupadmin_test.py b/sitewide/test/groupadmin_test.py
new file mode 100644
index 0000000..d1f7e0f
--- /dev/null
+++ b/sitewide/test/groupadmin_test.py
@@ -0,0 +1,85 @@
+# 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 or at
+# https://developers.google.com/open-source/licenses/bsd
+
+"""Unit test for User Group admin servlet."""
+from __future__ import print_function
+from __future__ import division
+from __future__ import absolute_import
+
+import unittest
+
+from framework import permissions
+from proto import usergroup_pb2
+from services import service_manager
+from sitewide import groupadmin
+from testing import fake
+from testing import testing_helpers
+
+
+class GrouAdminTest(unittest.TestCase):
+  """Tests for the GroupAdmin servlet."""
+
+  def setUp(self):
+    self.services = service_manager.Services(
+        user=fake.UserService(),
+        usergroup=fake.UserGroupService(),
+        project=fake.ProjectService())
+    self.services.user.TestAddUser('a@example.com', 111)
+    self.services.user.TestAddUser('b@example.com', 222)
+    self.services.user.TestAddUser('c@example.com', 333)
+    self.services.user.TestAddUser('group@example.com', 888)
+    self.services.user.TestAddUser('importgroup@example.com', 999)
+    self.services.usergroup.TestAddGroupSettings(888, 'group@example.com')
+    self.services.usergroup.TestAddGroupSettings(
+        999, 'importgroup@example.com', external_group_type='mdb')
+    self.servlet = groupadmin.GroupAdmin(
+        'req', 'res', services=self.services)
+    self.mr = testing_helpers.MakeMonorailRequest()
+    self.mr.viewed_username = 'group@example.com'
+    self.mr.viewed_user_auth.user_id = 888
+
+  def testAssertBasePermission(self):
+    mr = testing_helpers.MakeMonorailRequest(
+        perms=permissions.GetPermissions(None, {}, None))
+    mr.viewed_user_auth.user_id = 888
+    self.assertRaises(
+        permissions.PermissionException,
+        self.servlet.AssertBasePermission, mr)
+    self.services.usergroup.TestAddMembers(888, [111], 'owner')
+    self.servlet.AssertBasePermission(self.mr)
+
+  def testGatherPageData_Normal(self):
+    page_data = self.servlet.GatherPageData(self.mr)
+    self.assertEqual('group@example.com', page_data['groupname'])
+    self.assertEqual('Group Members', page_data['initial_visibility'].name)
+    self.assertEqual(3, len(page_data['visibility_levels']))
+
+  def testGatherPageData_Import(self):
+    mr = testing_helpers.MakeMonorailRequest()
+    mr.viewed_username = 'importgroup@example.com'
+    mr.viewed_user_auth.user_id = 999
+    page_data = self.servlet.GatherPageData(mr)
+    self.assertEqual('importgroup@example.com', page_data['groupname'])
+    self.assertTrue(page_data['import_group'])
+    self.assertEqual('MDB', page_data['initial_group_type'].name)
+
+  def testProcessFormData_Normal(self):
+    post_data = fake.PostData(visibility='0')
+    url = self.servlet.ProcessFormData(self.mr, post_data)
+    self.assertIn('/g/group@example.com/groupadmin', url)
+    group_settings = self.services.usergroup.GetGroupSettings(None, 888)
+    self.assertEqual(usergroup_pb2.MemberVisibility.OWNERS,
+                     group_settings.who_can_view_members)
+
+  def testProcessFormData_Import(self):
+    post_data = fake.PostData(
+        group_type='1', import_group=['on'])
+    url = self.servlet.ProcessFormData(self.mr, post_data)
+    self.assertIn('/g/group@example.com/groupadmin', url)
+    group_settings = self.services.usergroup.GetGroupSettings(None, 888)
+    self.assertEqual(usergroup_pb2.MemberVisibility.OWNERS,
+                     group_settings.who_can_view_members)
+    self.assertEqual(usergroup_pb2.GroupType.MDB,
+                     group_settings.ext_group_type)