def METHOD_NAME(self, bucket_factory, mcg_obj, key):
    # Create a bucket then read & write
    bucket_name = bucket_factory(amount=1, interface="OC", timeout=120)[0].name
    obj_data = "A random string data"
    assert s3_put_object(
        mcg_obj, bucket_name, key, obj_data
    ), f"Failed: Put object, {key}"
    assert s3_get_object(mcg_obj, bucket_name, key), f"Failed: Get object, {key}"