def METHOD_NAME(self):
    super().METHOD_NAME()
    self.cfn_client = boto3.client("cloudformation", region_name=DEFAULT_REGION)
    self.s3_client = boto3.client("s3", region_name=DEFAULT_REGION)
    self._delete_managed_stack(self.cfn_client, self.s3_client, DEFAULT_REGION)
    self.assertFalse(self._does_stack_exist(self.cfn_client, SAM_CLI_STACK_NAME))