def setUp(self):
        agent_config = base_config.get_config(sections='Main')

        self._instances = [{'name': 'test',
                            'mapping': {
                                'gauges': ['stats.(MessagesAvg)'],
                                'counters': ['MessagesTotal'],
                                'dimensions': {
                                    'index': 'index',
                                    'simple_dimension': 'simple_label',
                                    'complex_dimension': {
                                        'source_key': 'complex_label',
                                        'regex': 'k8s_([._\-a-zA-Z0-9]*)_postfix'
                                    },
                                    'complex_dimension_rest': {
                                        'source_key': 'complex_label',
                                        'regex': 'k8s_([._\-a-zA-Z0-9]*_postfix)'
                                    }
                                },
                                'groups': {
                                    'testgroup': {
                                        'dimensions': {
                                            'user': '******'
                                        },
                                        'rates': ['.*\.Responses.*', '(sec_auth_.*).stats',
                                                  '(io_service_bytes)_stats_Total']
                                    }
                                    # dimensions should be inherited from above
                                }}}]
        self.check = AgentCheck("DynCheckHelper-Teset", {}, agent_config, self._instances)  # TODO mock check
        self.helper = DynamicCheckHelper(self.check, 'dynhelper')