--- a/tests/test-template-engine.t Thu Apr 07 14:10:49 2016 -0700
+++ b/tests/test-template-engine.t Sun Apr 03 11:20:50 2016 +0900
@@ -44,4 +44,11 @@
0 97e5f848f0936960273bbf75be6388cd0350a32b -1 0000000000000000000000000000000000000000
-1 0000000000000000000000000000000000000000 -1 0000000000000000000000000000000000000000
+invalid engine type:
+
+ $ echo 'changeset = unknown:changeset.txt' > unknownenginemap
+ $ hg log --style=./unknownenginemap
+ abort: invalid template engine: unknown
+ [255]
+
$ cd ..