diff --git a/tests/test-bad-extension.out b/tests/test-bad-extension.out
new file mode 100644
--- /dev/null
+++ b/tests/test-bad-extension.out
@@ -0,0 +1,4 @@
+*** failed to import extension badext: invalid syntax (badext.py, line 1)
+hg help [COMMAND]
+
+show help for a command, extension, or list of commands