diff -r 2555f441a32f -r 36d7a0c7505f tests/test-alias.t
--- a/tests/test-alias.t	Thu Dec 01 01:42:03 2011 -0600
+++ b/tests/test-alias.t	Thu Dec 01 15:57:10 2011 -0600
@@ -397,3 +397,11 @@
   use "hg help" for the full list of commands or "hg -v" for details
   [255]
 
+This should show id:
+
+  $ hg --config alias.log='id' log
+  000000000000 tip
+
+This shouldn't:
+
+  $ hg --config alias.log='id' history