@patch('__builtin__.open')
    @patch.object(os.path, 'join')
    @patch.object(os, 'getcwd')
    def test_002_readfile_exist_with_local_provided\
        (self, mk_getcwd, mk_join, mk_open):
        """
        Tests reading a file and verify its content with local
        provided.
        """
        # setup mocks
        mk_getcwd.return_value = None
        mk_join.return_value = '/tmp/test/dummy.py'
        mk_open.return_value = MagicMock(spec=file)
        m_file = mk_open.return_value.__enter__.return_value
        m_file.read.return_value = 'hello world'

        # assert function output is 'hello world'
        self.assertEqual(
                        readfile(self.source_f, **self.kwargs),
                        'hello world')

        # assert mk_getcwd
        self.assertEqual(mk_getcwd.called, True)
        self.assertEqual(mk_getcwd.call_args_list, [call()])

        # assert mk_join
        self.assertEqual(mk_join.call_count, 1)
        join_call_list = [call(self.kwargs['local'], 'dummy.py')]
        self.assertEqual(mk_join.call_args_list, join_call_list)

        # assert mk_open
        self.assertEqual(mk_open.call_count, 1)
        open_call_list = [call('/tmp/test/dummy.py', 'r')]
        self.assertEqual(mk_open.call_args_list, open_call_list)