--- a/tests/test-topic-stack.t	Fri Sep 15 22:48:55 2017 +0530
+++ b/tests/test-topic-stack.t	Fri Sep 15 23:13:05 2017 +0530
@@ -67,6 +67,7 @@
   $ hg stack
   ### topic: other
   ### branch: default
+  (stack is empty)
 
   $ hg up foo
   switching to topic foo
@@ -225,6 +226,7 @@
   $ hg topic --clear
   $ hg stack
   ### branch: default
+  (stack is empty)
 
 Test "t#" reference
 -------------------