test.py

    @mock.patch('__builtin__.open', create=True)
    def test_cmd_config_basic_items(self, mock_open):

        test = """
# comment
stringkey1 = stringvalue1
stringkey2 = "stringvalue2"
intkey = 1234
floatkey = 56.78
bool1 = yes
bool2 = No
bool3 = y
        """

        mock_content = mock.MagicMock()
        mock_content.__iter__.return_value = test.split('\n')
        mock_open.return_value = mock_content

        cfg = config.parse('cmd.conf')

        mock_open.assert_called_once_with('cmd.conf')

        self.assertFalse('comment' in cfg)
        self.assertEqual(cfg['stringkey1'], 'stringvalue1')
        self.assertEqual(cfg['stringkey2'], 'stringvalue2')
        self.assertEqual(cfg['intkey'], 1234)
        self.assertEqual(cfg['floatkey'], 56.78)
        self.assertEqual(cfg['bool1'], True)
        self.assertEqual(cfg['bool2'], False)
        self.assertEqual(cfg['bool3'], True)