--- a/tests/test-obsolete.t	Tue Jun 19 09:23:50 2012 +0200
+++ b/tests/test-obsolete.t	Wed Jun 20 15:42:01 2012 +0200
@@ -475,4 +475,6 @@
 Test rebase --keep warning
 
   $ hg --config extensions.rebase= rebase -d 1 --keep
-  WARNING --keep option ignored by experimental obsolete extension (no-eol)
+  abort: rebase --keep option is unsupported with obsolete extension
+  (see 'hg help obsolete')
+  [255]