code: def test_global_config():
      t = BoostBuild.Tester(use_test_config=False, pass_toolset=0)
      t.write("my-config.jam", "ECHO Loading my-config ;")
      t.write("Jamroot", "EXIT Done : 0 ;")
      t.write("project-config.jam", "ECHO bad ;")
      t.run_build_system(
          ["--config=my-config.jam", "--debug-configuration"],
          match=TestCmd.match_re,
          stdout=r"""notice: found boost-build\.jam at .*
  notice: loading Boost\.Build from .*
  notice: Searching '.*' for all-config configuration file 'my-config\.jam'\.
  notice: Loading all-config configuration file 'my-config\.jam' from '.*'\.
  Loading my-config
  notice: Regular configuration files will be ignored due
  notice: to the global configuration being loaded\.
  Done
  """,
      )
      t.run_build_system(
          ["--config=", "--debug-configuration"],
          match=TestCmd.match_re,
          stdout=r"""notice: found boost-build\.jam at .*
  notice: loading Boost\.Build from .*
  notice: Configuration file loading explicitly disabled.
  Done
  """,
      )
      t.cleanup()
  
file_path: turicreate/src/external/boost/boost_1_68_0/tools/build/test/configuration.py
imports: import BoostBuild
  import TestCmd
  import os
  import os.path
  import re
label_desc: Use image node_id 7 for calling a global function with example usage: test_global_config() without return types