def METHOD_NAME(self):
    """Test user can read all"""
    response = self.client.get("/api/v1/users/")
    # test response code
    self.assertEqual(response.status_code, status.HTTP_200_OK)
    res_data_json = response.json()
    # test total user count
    self.assertEqual(res_data_json["count"], 3)  # 3 existing, plus the new one
    results = res_data_json["results"]
    # test presence of usernames
    self.assertIn(self.user.id, {r["id"] for r in results})
    self.assertIn(self.user_2.id, {r["id"] for r in results})