text: import pytest, asyncio
  from lanscatter import planner
  
  @pytest.mark.timeout(60)
  def test_planner(capsys):
  
      planner.simulate()
      captured = capsys.readouterr()
      assert 'ALL DONE' in captured.out
      assert 'xception' not in captured.out
      assert 'xception' not in captured.err
  