diff -r c5fbacf79b1e Lib/test/test_pathlib.py
--- a/Lib/test/test_pathlib.py	Sat Jan 30 12:34:12 2016 +0200
+++ b/Lib/test/test_pathlib.py	Sun Feb 07 13:31:42 2016 +0100
@@ -2048,7 +2048,9 @@
         import pwd
         pwdent = pwd.getpwuid(os.getuid())
         username = pwdent.pw_name
-        userhome = pwdent.pw_dir.rstrip('/')
+        userhome = pwdent.pw_dir
+        if userhome != '/':
+            userhome = userhome.rstrip('/')
         # find arbitrary different user (if exists)
         for pwdent in pwd.getpwall():
             othername = pwdent.pw_name
diff -r c5fbacf79b1e Lib/test/test_posixpath.py
--- a/Lib/test/test_posixpath.py	Sat Jan 30 12:34:12 2016 +0200
+++ b/Lib/test/test_posixpath.py	Sun Feb 07 13:31:42 2016 +0100
@@ -245,8 +245,10 @@
                 # expanduser should fall back to using the password database
                 del env['HOME']
                 home = pwd.getpwuid(os.getuid()).pw_dir
-                # $HOME can end with a trailing /, so strip it (see #17809)
-                self.assertEqual(posixpath.expanduser("~"), home.rstrip("/"))
+                if home != '/':
+                    # $HOME can end with a trailing /, so strip it (see #17809)
+                    home = home.rstrip('/')
+                self.assertEqual(posixpath.expanduser("~"), home)
 
     def test_normpath(self):
         self.assertEqual(posixpath.normpath(""), ".")