diff -r 381f131220ad -r 40c40c6f20b8 tests/test-revset
--- a/tests/test-revset	Mon Sep 20 15:33:39 2010 +0200
+++ b/tests/test-revset	Fri Sep 17 10:21:02 2010 -0500
@@ -110,6 +110,7 @@
 log 'file(b)'
 log 'follow()'
 log 'grep("issue\d+")'
+try 'grep("(")' # invalid regular expression
 log 'head()'
 log 'heads(6::)'
 log 'keyword(issue)'