code: def test_popen(self):
      self.assertRaises(TypeError, os.popen)
      self._do_test_commandline("foo bar", ["foo", "bar"])
      self._do_test_commandline(
          'foo "spam and eggs" "silly walk"',
          ["foo", "spam and eggs", "silly walk"],
      )
      self._do_test_commandline(
          'foo "a \\"quoted\\" arg" bar',
          ["foo", 'a "quoted" arg', "bar"],
      )
      support.reap_children()
  
file_path: cpython/Lib/test/test_popen.py
imports: import unittest
  from test import support
  import os, sys
label_desc: Use image node_id 2 for calling the PopenTest obj's underlying member method code with example usage: obj.test_popen() without return types