Index: Lib/test/test_os.py
===================================================================
--- Lib/test/test_os.py	(revision 65776)
+++ Lib/test/test_os.py	(working copy)
@@ -295,7 +295,7 @@
     if sys.platform == 'win32':
         def get_file_system(path):
             import os
-            root = os.path.splitdrive(os.path.realpath("."))[0] + '\\'
+            root = os.path.splitdrive(os.path.abspath(path))[0] + '\\'
             import ctypes
             kernel32 = ctypes.windll.kernel32
             buf = ctypes.create_string_buffer("", 100)