--- a/tests/test-evolve.t	Wed Feb 19 17:27:45 2014 -0800
+++ b/tests/test-evolve.t	Thu Feb 20 13:59:49 2014 -0800
@@ -645,3 +645,17 @@
   4	: add 4 - test
   5	: add 3 - test
   11	: add 1 - test
+
+Test obsstore stat
+
+  $ hg debugobsstorestat
+  markers total:                     10
+      for known precursors:          10
+  markers with no successors:         0
+                1 successors:        10
+                2 successors:         0
+      more than 2 successors:         0
+  average meta length:               27
+      available  keys:
+                 date:               10
+                 user:               10