diff -r 6ef9f32d76c6 -r ee47e951c6f9 tests/test-commit.t
--- a/tests/test-commit.t	Fri Jan 06 22:44:39 2017 +0900
+++ b/tests/test-commit.t	Fri Jan 06 22:50:04 2017 +0900
@@ -712,6 +712,9 @@
   > EOF
   $ echo foo2 > foo2
   $ hg add foo2
+  $ HGEDITOR="sh $TESTTMP/notouching.sh" hg ci
+  abort: commit message unchanged
+  [255]
   $ HGEDITOR="sh $TESTTMP/lowercaseline.sh" hg ci
   first line
   HG: this is customized commit template