code: def test_subprocess_call(command):
      if command == "echo":
          tools.subprocess_call(command, logger=None)
      else:
          with pytest.raises(IOError):
              tools.subprocess_call(command, logger=None)
  
file_path: moviepy/tests/test_tools.py
imports: import contextlib
  import filecmp
  import importlib
  import io
  import os
  import shutil
  import sys
  import pytest
  import moviepy.tools
  from moviepy.video.io.downloader import download_webfile
label_desc: Use image node_id 4 for calling a global function with example usage: test_subprocess_call(command) without return types