--- a/tests/test-topic-stack.t	Tue Sep 26 12:29:15 2017 +0200
+++ b/tests/test-topic-stack.t	Fri Sep 22 16:41:37 2017 +0200
@@ -59,6 +59,7 @@
   t2@ c_b (current)
   t1: c_a
   $ hg phase --public 'topic("other")'
+  active topic 'other' is now empty
 
 After changing the phase of all the changesets in "other" to public, the topic should still be active, but is empty. We should be better at informating the user about it and displaying good data in this case.