--- a/tests/test-topic-dest.t	Wed Oct 21 01:12:32 2015 +0200
+++ b/tests/test-topic-dest.t	Wed Oct 21 01:09:15 2015 +0200
@@ -91,3 +91,66 @@
   $ hg log -r 'ngtip(.)'
   6 () c_epsilon
 
+merge destination
+=================
+
+  $ hg up 'ngtip(default)'
+  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
+  $ echo zeta >> zeta
+  $ hg add zeta
+  $ hg ci -m "c_zeta"
+  created new head
+  $ hg log -G
+  @  9 () c_zeta
+  |
+  | o  8 (monkey) zephir
+  |/
+  | o  7 (elephant) babar
+  |/
+  o  6 () c_epsilon
+  |
+  o  3 () c_delta
+  |
+  o  2 () c_gamma
+  |
+  o  1 () c_beta
+  |
+  o  0 () c_alpha
+  
+  $ hg up elephant
+  switching to topic elephant
+  1 files updated, 0 files merged, 1 files removed, 0 files unresolved
+  $ hg rebase # make sure tip is elsewhere
+  rebasing 7:8d0b77140b05 "babar"
+  $ hg up monkey
+  switching to topic monkey
+  1 files updated, 0 files merged, 1 files removed, 0 files unresolved
+  $ hg merge
+  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  (branch merge, don't forget to commit)
+  $ hg topic
+     elephant
+   * monkey
+  $ hg ci -m 'merge with default'
+  $ hg topic
+     elephant
+   * monkey
+  $ hg log -G
+  @    11 (monkey) merge with default
+  |\
+  | | o  10 (elephant) babar
+  | |/
+  | o  9 () c_zeta
+  | |
+  o |  8 (monkey) zephir
+  |/
+  o  6 () c_epsilon
+  |
+  o  3 () c_delta
+  |
+  o  2 () c_gamma
+  |
+  o  1 () c_beta
+  |
+  o  0 () c_alpha
+