code: def testExpandsUser(self):
      # USERPROFILE is used for simulating Python 3.8 on Windows.
      old_home = os.environ.get("HOME", None)
      old_userprofile = os.environ.get("USERPROFILE", None)
      try:
          test_home_directory = "/usr/eliza"
          os.environ["HOME"] = test_home_directory
          self.assertPlatformSpecificLogdirParsing(
              posixpath,
              "~/lol/cat~dog",
              {"/usr/eliza/lol/cat~dog": None},
          )
          test_home_directory = r"C:\Users\eliza"
          os.environ["HOME"] = test_home_directory
          os.environ["USERPROFILE"] = test_home_directory
          self.assertPlatformSpecificLogdirParsing(
              ntpath,
              r"~\lol\cat~dog",
              {r"C:\Users\eliza\lol\cat~dog": None},
          )
      finally:
          if old_home is not None:
              os.environ["HOME"] = old_home
          if old_userprofile is not None:
              os.environ["USERPROFILE"] = old_userprofile
  
imports: import ntpath
  import os
  import posixpath
  import time
  from unittest import mock
  from tensorboard import test
  from tensorboard.backend.event_processing import data_ingester
  from tensorboard.compat import tf
label_desc: Use image node_id 5 for calling the ParseEventFilesSpecTest obj's underlying member method code with example usage: obj.testExpandsUser() without return types