'Test current_config with empty config for port'

def test_current_config_empty_config(self):

    module = Mock()
    module.params = dict(switch_name='eos', switch_port='4')
    config = '!\ninterface    Ethernet3\n!\ninterface    Ethernet4'
    result = cv_server_provision.current_config(module, config)
    self.assertIsNotNone(result)
    self.assertEqual(result, 'interface    Ethernet4')
