code: def test_dump_options(self):
      msgs = []
  
      def _announce(msg, level):
          msgs.append(msg)
  
      cmd = self.cmd
      cmd.announce = _announce
      cmd.option1 = 1
      cmd.option2 = 1
      cmd.user_options = [("option1", "", ""), ("option2", "", "")]
      cmd.dump_options()
  
      wanted = [
          "command options for 'MyCmd':",
          "  option1 = 1",
          "  option2 = 1",
      ]
      self.assertEqual(msgs, wanted)
  
imports: import unittest
  import os
  from test.test_support import captured_stdout, run_unittest
  from distutils.cmd import Command
  from distutils.dist import Distribution
  from distutils.errors import DistutilsOptionError
  from distutils import debug
label_desc: Use image node_id 4 for calling the CommandTestCase obj's underlying member method code with example usage: obj.test_dump_options() without return types