Issue #8390: tarfile uses surrogateespace as the default error handler
(instead of replace in read mode or strict in write mode)
diff --git a/Lib/test/test_tarfile.py b/Lib/test/test_tarfile.py
index 43527ef..2db18fe 100644
--- a/Lib/test/test_tarfile.py
+++ b/Lib/test/test_tarfile.py
@@ -1118,8 +1118,8 @@
         if self.format != tarfile.PAX_FORMAT:
             tar = tarfile.open(tmpname, encoding="ascii")
             t = tar.getmember("foo")
-            self.assertEqual(t.uname, "\ufffd\ufffd\ufffd")
-            self.assertEqual(t.gname, "\ufffd\ufffd\ufffd")
+            self.assertEqual(t.uname, "\udce4\udcf6\udcfc")
+            self.assertEqual(t.gname, "\udce4\udcf6\udcfc")
 
 
 class GNUUnicodeTest(UstarUnicodeTest):