--- a/tests/test-exchange-B7.t	Thu Mar 09 22:57:41 2017 -0800
+++ b/tests/test-exchange-B7.t	Fri Mar 10 10:36:46 2017 -0800
@@ -49,6 +49,15 @@
   
   $ hg debugobsolete
   f6fbb35d8ac958bbe70035e4c789c18471cdc0af 0 {f5bc6836db60e308a17ba08bf050154ba9c4fad7} (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+  $ hg debugobsrelsethashtree
+  a9bdc8b26820b1b87d585b82eb0ceb4a2ecdbc04 0000000000000000000000000000000000000000
+  f5bc6836db60e308a17ba08bf050154ba9c4fad7 926d9d84b97b3483891ae983990ad87c1f7827e9
+  f6fbb35d8ac958bbe70035e4c789c18471cdc0af e041f7ff1c7bd5501c7ab602baa35f0873128021
+  $ hg debugstablerange --rev 'head()'
+  rev         node index size depth      obshash
+    1 f5bc6836db60     0    2     2 926d9d84b97b
+    0 a9bdc8b26820     0    1     1 000000000000
+    1 f5bc6836db60     1    1     2 926d9d84b97b
   $ cd ..
   $ cd ..