code: def test_key(self, mocked_blob_service_client):
      hook = WasbHook(wasb_conn_id=self.wasb_test_key)
      mocked_blob_service_client.assert_not_called()  # Not expected during initialisation
      hook.get_conn()
      mocked_blob_service_client.assert_called_once_with(
          account_url=f"https://{self.login}.blob.core.windows.net/",
          credential="key",
      )
  
imports: from __future__ import annotations
  from unittest import mock
  import pytest
  from azure.core.exceptions import ResourceNotFoundError
  from azure.storage.blob import BlobServiceClient
  from azure.storage.blob._models import BlobProperties
  from airflow.exceptions import AirflowException
  from airflow.models import Connection
  from airflow.providers.microsoft.azure.hooks.wasb import WasbHook
label_desc: Use image node_id 2 for calling the TestWasbHook obj's underlying member method code with example usage: obj.test_key(mocked_blob_service_client) without return types