code: def setup_module_clash(self):
      class Module(object):
          __file__ = "bar/foo.py"
  
      sys.modules["foo"] = Module
      full_path = os.path.abspath("foo")
      original_listdir = os.listdir
      original_isfile = os.path.isfile
      original_isdir = os.path.isdir
      original_realpath = os.path.realpath
  
      def cleanup():
          os.listdir = original_listdir
          os.path.isfile = original_isfile
          os.path.isdir = original_isdir
          os.path.realpath = original_realpath
          del sys.modules["foo"]
          if full_path in sys.path:
              sys.path.remove(full_path)
  
      self.addCleanup(cleanup)
  
      def listdir(_):
          return ["foo.py"]
  
      def isfile(_):
          return True
  
      def isdir(_):
          return True
  
      os.listdir = listdir
      os.path.isfile = isfile
      os.path.isdir = isdir
      if os.name == "nt":
          # ntpath.realpath may inject path prefixes when failing to
          # resolve real files, so we substitute abspath() here instead.
          os.path.realpath = os.path.abspath
      return full_path
  
imports: import os.path
  from os.path import abspath
  import re
  import sys
  import types
  import pickle
  from test import support
  from test.support import import_helper
  import unittest
  import unittest.mock
  import test.test_unittest
label_desc: Use image node_id 21 for calling the TestDiscovery obj's underlying member method code with example usage: obj.setup_module_clash() and returns: full_path, list, True, True