code: def test_debug_mode(self):
      # this covers the code called when DEBUG is set
      old_logs_len = len(self.logs)
      install_module.DEBUG = True
      try:
          with captured_stdout():
              self.test_record()
      finally:
          install_module.DEBUG = False
      self.assertGreater(len(self.logs), old_logs_len)
  
imports: import os
  import sys
  import unittest
  import site
  from test.test_support import captured_stdout, run_unittest
  from distutils import sysconfig
  from distutils.command.install import install
  from distutils.command import install
  from distutils.command.build_ext import build_ext
  from distutils.command.install import INSTALL_SCHEMES
  from distutils.core import Distribution
  from distutils.errors import DistutilsOptionError
  from distutils.extension import Extension
  from distutils.tests import support
label_desc: Use image node_id 7 for calling the InstallTestCase obj's underlying member method code with example usage: obj.test_debug_mode() without return types