code: def test_failedextension(output):
      """
      IO Test - made to fail with filename with wrong extension
      """
      stream_params = {"-video_source": return_testvideo_path()}
      streamer = StreamGear(
          output=output, logging=True, **stream_params
      )
      streamer.transcode_source()
      streamer.terminate()
  
file_path: vidgear/vidgear/tests/streamer_tests/test_IO_ss.py
imports: import os
  import numpy
  import pytest
  import tempfile
  import subprocess
  from vidgear.gears import StreamGear
label_desc: Use image node_id 2 for calling a global function with example usage: test_failedextension(output) without return types