def setUp(self):
     TestCase.setUp(self)
     '''TOSCA template.'''
     self.tosca_tpl_path = os.path.join(
         os.path.dirname(os.path.abspath(__file__)),
         "data/topology_template/subsystem.yaml")
     self.tpl = YAML_LOADER(self.tosca_tpl_path)
     self.topo_tpl = self.tpl.get('topology_template')
     self.imports = self.tpl.get('imports')
     self.topo = TopologyTemplate(self.topo_tpl,
                                  self._get_all_custom_def())