--- a/tests/test-histedit-edit.t	Fri Feb 06 16:09:43 2015 -0800
+++ b/tests/test-histedit-edit.t	Fri Jan 30 16:47:35 2015 -0800
@@ -3,6 +3,7 @@
   $ cat >> $HGRCPATH <<EOF
   > [extensions]
   > histedit=
+  > strip=
   > EOF
 
   $ initrepo ()
@@ -72,6 +73,11 @@
   (use 'hg histedit --continue' or 'hg histedit --abort')
   [255]
 
+Try to delete necessary commit
+  $ hg strip -r 652413bf663e
+  abort: unable to strip 652413bf663ef2a641cab26574e46d5f5a64a55a. Nodes are used by history edit in progress.
+  [255]
+
 commit, then edit the revision
   $ hg ci -m 'wat'
   created new head