text: # (c) Copyright 2014,2015 Hewlett-Packard Development Company, L.P.
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #    http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  import signal
  import unittest
  
  import mock
  from mock import patch
  
  from freezer.scheduler import daemon
  
  
  class TestNoDaemon(unittest.TestCase):
      @patch('freezer.scheduler.daemon.signal')
      def setUp(self, mock_signal):
          self.daemonizable = mock.Mock()
          self.daemon = daemon.NoDaemon(daemonizable=self.daemonizable)
  
      def test_create(self):
          self.assertIsInstance(self.daemon, daemon.NoDaemon)
  
      def test_exit_handler(self):
          daemon.NoDaemon.exit_flag = False
          self.daemon.handle_program_exit(33, None)
          self.assertEqual(daemon.NoDaemon.exit_flag, True)
          self.assertTrue(self.daemonizable.stop.called)
  
      def test_reload_handler(self):
          daemon.NoDaemon.exit_flag = False
          self.daemon.handle_reload(33, None)
          self.assertEqual(daemon.NoDaemon.exit_flag, False)
          self.assertTrue(self.daemonizable.reload.called)
  
      def test_start_exit_ok(self):
          daemon.NoDaemon.exit_flag = False
          res = self.daemon.start(dump_stack_trace=False)
          self.assertIsNone(res)
          self.assertEqual(daemon.NoDaemon.exit_flag, True)
          self.assertTrue(self.daemonizable.start.called)
      #
      # @patch('freezer.scheduler.daemon.logging')
      # def test_start_restarts_daemonizable_on_Exception(self, mock_logging):
      #     daemon.NoDaemon.exit_flag = False
      #     self.daemonizable.start.side_effect = [Exception('test'),
      #                                            lambda: DEFAULT]
      #
      #     res = self.daemon.start(log_file=None, dump_stack_trace=True)
      #
      #     self.assertIsNone(res)
      #     self.assertEqual(daemon.NoDaemon.exit_flag, True)
      #     self.assertEqual(self.daemonizable.start.call_count, 2)
      #     self.assertTrue(mock_logging.error.called)
  
      def test_has_stop_method(self):
          res = self.daemon.stop()
          self.assertIsNone(res)
  
      def test_has_status_method(self):
          res = self.daemon.status()
          self.assertIsNone(res)
  
  
  class TestDaemon(unittest.TestCase):
      def setUp(self):
          self.daemonizable = mock.Mock()
          self.daemon = daemon.Daemon(daemonizable=self.daemonizable)
  
      def test_create(self):
          self.assertIsInstance(self.daemon, daemon.Daemon)
  
      def test_handle_program_exit_calls_scheduler_stop(self):
          self.daemon.handle_program_exit(mock.Mock(), mock.Mock())
          self.daemonizable.stop.assert_called_with()
  
      def test_handle_program_reload_calls_scheduler_reload(self):
          self.daemon.handle_reload(mock.Mock(), mock.Mock())
          self.daemonizable.reload.assert_called_with()
  
      def test_signal_map_handlers(self):
          signal_map = self.daemon.signal_map
          self.assertEqual(self.daemon.handle_program_exit,
                           signal_map[signal.SIGTERM])
          self.assertEqual(self.daemon.handle_reload, signal_map[signal.SIGHUP])
  
      @patch('freezer.scheduler.daemon.gettempdir')
      @patch('freezer.scheduler.daemon.os.path.expanduser')
      def test_pid_fname_in_tempdir(self, mock_expanduser, mock_gettempdir):
          mock_expanduser.return_value = '/home/chet'
          mock_gettempdir.return_value = '/tempus_fugit'
          retval = self.daemon.pid_fname
          self.assertEqual('/tempus_fugit/freezer_sched_chet.pid', retval)
  
      @patch('freezer.scheduler.daemon.os.path.isfile')
      def test_pid_not_exists(self, mock_isfile):
          mock_isfile.return_value = False
          res = self.daemon.pid
          self.assertIsNone(res)
  
      # @patch('freezer.scheduler.daemon.os.path.isfile')
      # def test_pid_exists(self, mock_isfile):
      #     mock_isfile.return_value = True
      #     pid_file_text = "125"
      #     mocked_open_function = mock_open(read_data=pid_file_text)
      #
      #     with patch("__builtin__.open", mocked_open_function):
      #         res = self.daemon.pid
      #
      #     self.assertEqual(res, 125)
  
      @patch('freezer.scheduler.daemon.PidFile')
      @patch('freezer.scheduler.daemon.DaemonContext')
      def test_start(self, mock_DaemonContext, mock_PidFile):
          daemon.Daemon.exit_flag = False
          res = self.daemon.start()
          self.assertIsNone(res)
          self.assertEqual(daemon.Daemon.exit_flag, True)
          self.assertTrue(self.daemonizable.start.called)
  
      # @patch('freezer.scheduler.daemon.logging')
      # @patch('freezer.scheduler.daemon.PidFile')
      # @patch('freezer.scheduler.daemon.DaemonContext')
      # def test_start_restarts_daemonizable_on_Exception(
      #         self, mock_DaemonContext, mock_PidFile, mock_logging):
      #     daemon.Daemon.exit_flag = False
      #     self.daemonizable.start.side_effect = [Exception('test'),
      #                                            lambda: DEFAULT]
      #
      #     res = self.daemon.start(log_file=None, dump_stack_trace=True)
      #
      #     self.assertIsNone(res)
      #     self.assertEqual(daemon.Daemon.exit_flag, True)
      #     self.assertEqual(self.daemonizable.start.call_count, 2)
      #     self.assertTrue(mock_logging.error.called)
      #
      # @patch('freezer.scheduler.daemon.os')
      # def test_stop_not_existing(self, mock_os):
      #     self.daemon.pid = None
      #     self.daemon.stop()
      #     self.assertFalse(mock_os.kill.called)
      #
      # @patch('freezer.scheduler.daemon.os')
      # def test_stop_existing(self, mock_os):
      #     self.daemon.pid = 33
      #     self.daemon.stop()
      #     mock_os.kill.assert_called_once_with(33, signal.SIGTERM)
      #
      # @patch('freezer.scheduler.daemon.os')
      # def test_reload_not_existing(self, mock_os):
      #     self.daemon.pid = None
      #     self.daemon.reload()
      #     self.assertFalse(mock_os.kill.called)
      #
      # @patch('freezer.scheduler.daemon.os')
      # def test_reload_existing(self, mock_os):
      #     self.daemon.pid = 33
      #     self.daemon.reload()
      #     mock_os.kill.assert_called_once_with(33, signal.SIGHUP)
      #
      # def test_status_not_existing(self):
      #     self.daemon.pid = None
      #     res = self.daemon.status()
      #     self.assertIsNone(res)
      #
      # def test_status_existing(self):
      #     self.daemon.pid = 33
      #     res = self.daemon.status()
      #     self.assertIsNone(res)
  