code: def test_post_should_respond_200(self):
      payload = {
          "name": "Test2",
          "actions": [
              {
                  "resource": {"name": "Connections"},
                  "action": {"name": "can_create"},
              }
          ],
      }
      response = self.client.post(
          "/auth/fab/v1/roles",
          json=payload,
          environ_overrides={"REMOTE_USER": "test"},
      )
      assert response.status_code == 200
      role = self.app.appbuilder.sm.find_role("Test2")
      assert role is not None
  
imports: from __future__ import annotations
  import pytest
  from airflow.api_connexion.exceptions import EXCEPTIONS_LINK_MAP
  from airflow.providers.fab.auth_manager.models import Role
  from airflow.providers.fab.auth_manager.security_manager.override import EXISTING_ROLES
  from airflow.security import permissions
  from tests.test_utils.api_connexion_utils import assert_401, create_role, create_user, delete_role, delete_user
label_desc: Use image node_id 1 for calling the TestPostRole obj's underlying member method code with example usage: obj.test_post_should_respond_200() without return types