--- a/tests/test-exchange-C3.t	Thu Mar 09 22:57:41 2017 -0800
+++ b/tests/test-exchange-C3.t	Fri Mar 10 10:36:46 2017 -0800
@@ -60,6 +60,14 @@
   06055a7959d4128e6e3bccfd01482e83a2db8a3a 0 {28b51eb45704506b5c603decd6bf7ac5e0f6a52f} (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
   28b51eb45704506b5c603decd6bf7ac5e0f6a52f e5ea8f9c73143125d36658e90ef70c6d2027a5b7 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
   e5ea8f9c73143125d36658e90ef70c6d2027a5b7 0 {a9bdc8b26820b1b87d585b82eb0ceb4a2ecdbc04} (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+  $ hg debugobsrelsethashtree
+  a9bdc8b26820b1b87d585b82eb0ceb4a2ecdbc04 40be80b35671116f2c61ef25797806536a6eb5a0
+  28b51eb45704506b5c603decd6bf7ac5e0f6a52f beac7228bbe708bc7c9181c3c27f8a17f21dbd9f
+  06055a7959d4128e6e3bccfd01482e83a2db8a3a 8b648bd67281e9e525919285ac7b3bb2836c2f02
+  e5ea8f9c73143125d36658e90ef70c6d2027a5b7 dcd2b566ad0983333be704afdc205066e1a6b742
+  $ hg debugstablerange --rev 'head()'
+  rev         node index size depth      obshash
+    0 a9bdc8b26820     0    1     1 40be80b35671
   $ cd ..
   $ cd ..