text: # -------------------------------------------------------------------------
  # Copyright (c) Microsoft Corporation. All rights reserved.
  # Licensed under the MIT License. See License.txt in the project root for
  # license information.
  # --------------------------------------------------------------------------
  import unittest
  import os
  from pathlib import Path
  import nbformat
  from nbconvert.preprocessors import ExecutePreprocessor, CellExecutionError
  import pytest
  
  _NB_FOLDER = "docs/notebooks"
  _NB_NAME = "EventClustering.ipynb"
  
  
  class Testnbdisplay(unittest.TestCase):
      """Unit test class."""
  
      @pytest.mark.skipif(
          not os.environ.get("MSTICPY_TEST_NOSKIP"), reason="Skipped for local tests."
      )
      def test_clustering_nbdisplay_notebook(self):
          nb_path = Path(_NB_FOLDER).joinpath(_NB_NAME)
          abs_path = Path(_NB_FOLDER).absolute()
          with open(nb_path) as f:
              nb = nbformat.read(f, as_version=4)
          ep = ExecutePreprocessor(timeout=600, kernel_name="python3")
  
          try:
              ep.preprocess(nb, {"metadata": {"path": abs_path}})
          except CellExecutionError:
              nb_err = str(nb_path).replace(".ipynb", "-err.ipynb")
              msg = f"Error executing the notebook '{nb_path}'.\n"
              msg += f"See notebook '{nb_err}' for the traceback."
              print(msg)
              with open(nb_err, mode="w", encoding="utf-8") as f:
                  nbformat.write(nb, f)
              raise
  