--- a/tests/test-exchange-A4.t	Thu Mar 09 22:57:41 2017 -0800
+++ b/tests/test-exchange-A4.t	Fri Mar 10 10:36:46 2017 -0800
@@ -63,6 +63,20 @@
   $ hg debugobsolete
   aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 28b51eb45704506b5c603decd6bf7ac5e0f6a52f 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
   28b51eb45704506b5c603decd6bf7ac5e0f6a52f e5ea8f9c73143125d36658e90ef70c6d2027a5b7 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+  $ hg debugobsrelsethashtree
+  a9bdc8b26820b1b87d585b82eb0ceb4a2ecdbc04 0000000000000000000000000000000000000000
+  28b51eb45704506b5c603decd6bf7ac5e0f6a52f 5d69322fad9eb1ba8f8f2c2312346ed347fdde76
+  06055a7959d4128e6e3bccfd01482e83a2db8a3a fd3e5712c9c2d216547d7a1b87ac815ee1fb7542
+  e5ea8f9c73143125d36658e90ef70c6d2027a5b7 cf518031fa753e9b049d727e6b0e19f645bab38f
+  $ hg debugstablerange --rev 'head()'
+  rev         node index size depth      obshash
+    2 06055a7959d4     0    3     3 000000000000
+    1 28b51eb45704     0    2     2 5d69322fad9e
+    3 e5ea8f9c7314     0    2     2 cf518031fa75
+    2 06055a7959d4     2    1     3 000000000000
+    1 28b51eb45704     1    1     2 5d69322fad9e
+    0 a9bdc8b26820     0    1     1 000000000000
+    3 e5ea8f9c7314     1    1     2 cf518031fa75
   $ cd ..
   $ cd ..