old_contents: # -*- coding: utf-8 -*-
  
  import manage
  import unittest
  
  
  class TestManagePy(unittest.TestCase):
      def test_parse_args(self):
          # just test that the arg parser is stable
          manage.get_args()
  
new_contents: # -*- coding: utf-8 -*-
  
  import manage
  import mock
  from StringIO import StringIO
  import sys
  import unittest
  import __builtin__
  
  import utils
  
  
  class TestManagePy(unittest.TestCase):
      def test_parse_args(self):
          # just test that the arg parser is stable
          manage.get_args()
  
  
  class TestManagementCommand(unittest.TestCase):
      def setUp(self):
          utils.env.setup()
  
      def tearDown(self):
          utils.env.teardown()
  
      @mock.patch("__builtin__.raw_input", return_value='N')
      @mock.patch("manage.getpass", return_value='testtesttest')
      @mock.patch("sys.stdout", new_callable=StringIO)
      def test_exception_handling_when_duplicate_username(self, mock_raw_input,
                                                          mock_getpass,
                                                          mock_stdout):
          """Regression test for duplicate username logic in manage.py"""
  
          # Inserting the user for the first time should succeed
          return_value = manage._add_user()
          self.assertEqual(return_value, 0)
          self.assertIn('successfully added', sys.stdout.getvalue())
  
          # Inserting the user for a second time should fail
          return_value = manage._add_user()
          self.assertEqual(return_value, 1)
          self.assertIn('ERROR: That username is already taken!',
                        sys.stdout.getvalue())
  
subject: Add unit test to check duplicate username error is handled in manage.py