--- a/tests/test-topic-stack.t	Wed Jun 28 01:58:09 2017 +0200
+++ b/tests/test-topic-stack.t	Wed Jun 28 02:45:57 2017 +0200
@@ -129,8 +129,14 @@
 
   $ hg topic --clear
   $ hg stack
-  abort: no active topic to list
-  [255]
+  ### topic: None
+  ### branch: default
+  b6@ c_f (current)
+  b5: c_e
+  b4: c_d
+  b3: c_c
+  b2: c_b
+  b1: c_a
 
 Test "t#" reference
 -------------------