def test_kill_pids_in_file(self):
        with contextlib.nested(mock.patch('os.path.exists'),
                               mock.patch('__builtin__.open')) as (path_exists,
                                                                   mock_open):
            file_mock = mock.MagicMock()
            mock_open.return_value = file_mock
            file_mock.__enter__.return_value = file_mock
            file_mock.__iter__.return_value = iter(['123'])
            ns_wrapper = mock.Mock()

            path_exists.return_value = False
            namespace_driver.kill_pids_in_file(ns_wrapper, 'test_path')
            path_exists.assert_called_once_with('test_path')
            self.assertFalse(mock_open.called)

            path_exists.return_value = True
            ns_wrapper.netns.execute.side_effect = RuntimeError
            namespace_driver.kill_pids_in_file(ns_wrapper, 'test_path')
            ns_wrapper.netns.execute.assert_called_once_with(
                ['kill', '-9', '123'])
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    def test_kill_pids_in_file(self):
        with contextlib.nested(
                mock.patch('os.path.exists'), mock.patch('__builtin__.open'),
                mock.patch('quantum.agent.linux.utils.execute')) as (
                    path_exists, mock_open, mock_execute):
            file_mock = mock.MagicMock()
            mock_open.return_value = file_mock
            file_mock.__enter__.return_value = file_mock
            file_mock.__iter__.return_value = iter(['123'])

            path_exists.return_value = False
            namespace_driver.kill_pids_in_file('sudo', 'test_path')
            path_exists.assert_called_once_with('test_path')
            self.assertFalse(mock_open.called)
            self.assertFalse(mock_execute.called)

            path_exists.return_value = True
            mock_execute.side_effect = RuntimeError
            namespace_driver.kill_pids_in_file('sudo', 'test_path')
            mock_execute.assert_called_once_with(['kill', '-9', '123'], 'sudo')
    def test_kill_pids_in_file(self):
        with contextlib.nested(
                mock.patch('os.path.exists'),
                mock.patch('__builtin__.open')
        ) as (path_exists, mock_open):
            file_mock = mock.MagicMock()
            mock_open.return_value = file_mock
            file_mock.__enter__.return_value = file_mock
            file_mock.__iter__.return_value = iter(['123'])
            ns_wrapper = mock.Mock()

            path_exists.return_value = False
            namespace_driver.kill_pids_in_file(ns_wrapper, 'test_path')
            path_exists.assert_called_once_with('test_path')
            self.assertFalse(mock_open.called)

            path_exists.return_value = True
            ns_wrapper.netns.execute.side_effect = RuntimeError
            namespace_driver.kill_pids_in_file(ns_wrapper, 'test_path')
            ns_wrapper.netns.execute.assert_called_once_with(['kill', '-9',
                                                              '123'])
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    def test_kill_pids_in_file(self):
        with contextlib.nested(
            mock.patch('os.path.exists'),
            mock.patch('__builtin__.open'),
            mock.patch('quantum.agent.linux.utils.execute')
        ) as (path_exists, mock_open, mock_execute):
            file_mock = mock.MagicMock()
            mock_open.return_value = file_mock
            file_mock.__enter__.return_value = file_mock
            file_mock.__iter__.return_value = iter(['123'])

            path_exists.return_value = False
            namespace_driver.kill_pids_in_file('sudo', 'test_path')
            path_exists.assert_called_once_with('test_path')
            self.assertFalse(mock_open.called)
            self.assertFalse(mock_execute.called)

            path_exists.return_value = True
            mock_execute.side_effect = RuntimeError
            namespace_driver.kill_pids_in_file('sudo', 'test_path')
            mock_execute.assert_called_once_with(
                ['kill', '-9', '123'], 'sudo')