docstr: Test if exception is raised when bucket_name is None
  and bucket_key is provided as relative path rather than s3:// url.
  :return:
docstr_tok: ["Test","if","exception","is","raised","when","bucket_name","is","None","and","bucket_key","is","provided","as","relative","path","rather","than","s3",":","\/\/","url",".",":","return",":"]
code: def test_bucket_name_none_and_bucket_key_as_relative_path(self):
      """
      Test if exception is raised when bucket_name is None
      and bucket_key is provided as relative path rather than s3:// url.
      :return:
      """
      op = S3KeySensor(
          task_id="s3_key_sensor", bucket_key="file_in_bucket"
      )
      with pytest.raises(AirflowException):
          op.poke(None)
  
imports: from __future__ import annotations
  from datetime import datetime
  from unittest import mock
  import pytest
  import time_machine
  from airflow.exceptions import AirflowException, AirflowSkipException
  from airflow.models import DAG, DagRun, TaskInstance
  from airflow.models.variable import Variable
  from airflow.providers.amazon.aws.sensors.s3 import S3KeySensor, S3KeysUnchangedSensor
  from airflow.utils import timezone
label_desc: Use image node_id 1 for calling the TestS3KeySensor obj's underlying member method code with example usage: obj.test_bucket_name_none_and_bucket_key_as_relative_path() without return types