--- a/tests/test-exchange-A6.t	Thu Mar 09 22:57:41 2017 -0800
+++ b/tests/test-exchange-A6.t	Fri Mar 10 10:36:46 2017 -0800
@@ -59,6 +59,15 @@
   
   $ hg debugobsolete
   28b51eb45704506b5c603decd6bf7ac5e0f6a52f e5ea8f9c73143125d36658e90ef70c6d2027a5b7 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+  $ hg debugobsrelsethashtree
+  a9bdc8b26820b1b87d585b82eb0ceb4a2ecdbc04 0000000000000000000000000000000000000000
+  28b51eb45704506b5c603decd6bf7ac5e0f6a52f 0000000000000000000000000000000000000000
+  e5ea8f9c73143125d36658e90ef70c6d2027a5b7 3bc2ee626e11a7cf8fee7a66d069271e17d5a597
+  $ hg debugstablerange --rev 'head()'
+  rev         node index size depth      obshash
+    2 e5ea8f9c7314     0    2     2 3bc2ee626e11
+    0 a9bdc8b26820     0    1     1 000000000000
+    2 e5ea8f9c7314     1    1     2 3bc2ee626e11
   $ cd ..
   $ cd ..