diff -r be4984261611 -r c2586a6e5884 tests/test-histedit-no-backup.t
--- a/tests/test-histedit-no-backup.t	Wed Jul 18 09:49:34 2018 -0700
+++ b/tests/test-histedit-no-backup.t	Tue Jul 10 17:01:06 2018 +0530
@@ -93,3 +93,41 @@
   o  0   36b4bdd91f5b   1970-01-01 00:00 +0000   test
        one
   
+==========================================
+Test history-editing-backup config option|
+==========================================
+Test when `history-editing-backup` config option is enabled:
+  $ hg histedit -r '36b4bdd91f5b' --commands - << EOF
+  > pick 36b4bdd91f5b 0 one
+  > pick 6153eb23e623 1 two
+  > roll 80d23dfa866d 2 three
+  > edit 7d5187087c79 3 four
+  > EOF
+  merging file
+  Editing (7d5187087c79), you may commit or record as needed now.
+  (hg histedit --continue to resume)
+  [1]
+  $ hg histedit --abort
+  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  saved backup bundle to $TESTTMP/foo/.hg/strip-backup/1d8f701c7b35-cf7be322-backup.hg
+  saved backup bundle to $TESTTMP/foo/.hg/strip-backup/5c0056670bce-b54b65d0-backup.hg
+
+Test when `history-editing-backup` config option is not enabled
+Enable config option:
+  $ cat >>$HGRCPATH <<EOF
+  > [ui]
+  > history-editing-backup=False
+  > EOF
+
+  $ hg histedit -r '36b4bdd91f5b' --commands - << EOF
+  > pick 36b4bdd91f5b 0 one
+  > pick 6153eb23e623 1 two
+  > roll 80d23dfa866d 2 three
+  > edit 7d5187087c79 3 four
+  > EOF
+  merging file
+  Editing (7d5187087c79), you may commit or record as needed now.
+  (hg histedit --continue to resume)
+  [1]
+  $ hg histedit --abort
+  1 files updated, 0 files merged, 0 files removed, 0 files unresolved