code: def testProfile(self):
      import struct
      import sysconfig
  
      bits = struct.calcsize("P") * 8
      triplet = sysconfig.get_config_var("MULTIARCH") or ""
      libpath = [
          f"{prefix}{suffix}"
          for prefix in ("/lib", "/usr/lib")
          for suffix in (bits, f"/{triplet}", "")
      ]
      fspath = (os.fsencode, os.fsdecode, pathlib.Path)
      libraries = (
          "c",
          "libc.so.6",
          "m",
          "libm.so.6",
          "dl",
          "libdl.so.2",
      )
  
      def mpi4py_profile(*args, **kwargs):
          try:
              mpi4py.profile(*args, **kwargs)
          except ValueError:
              pass
  
      if os.name != "posix":
          with warnings.catch_warnings():
              warnings.simplefilter("error")
              with self.assertRaises(UserWarning):
                  mpi4py.profile(struct.__file__)
          return
      with warnings.catch_warnings():
          warnings.simplefilter("ignore")
          for libname in libraries:
              mpi4py_profile(libname, path=libpath)
              for fs in fspath:
                  mpi4py_profile(libname, path=map(fs, libpath))
              for path in libpath:
                  mpi4py_profile(libname, path=path)
                  for fsp in fspath:
                      mpi4py_profile(libname, path=fsp(path))
          warnings.simplefilter("error")
          with self.assertRaises(UserWarning):
              mpi4py.profile("hosts", path=["/etc"])
          with self.assertRaises(ValueError):
              mpi4py.profile("@querty")
          with self.assertRaises(ValueError):
              mpi4py.profile("@querty", path="/usr/lib")
          with self.assertRaises(ValueError):
              mpi4py.profile("@querty", path=["/usr/lib"])
          with self.assertRaises(ValueError):
              mpi4py.profile("@querty")
  
file_path: mpi4py/test/test_toplevel.py
imports: import mpi4py
  import unittest
  import warnings
  import pathlib
  import os
label_desc: Use image node_id 1 for calling the TestProfile obj's underlying member method code with example usage: obj.testProfile() without return types