diff --git a/tests/test-lock-badness b/tests/test-lock-badness
new file mode 100755
--- /dev/null
+++ b/tests/test-lock-badness
@@ -0,0 +1,11 @@
+#!/bin/sh
+
+hg init a
+echo a > a/a
+hg --cwd a ci -A -m a
+hg clone a b
+echo b > b/b
+hg --cwd b ci -A -m b
+chmod 100 a/.hg
+hg --cwd b push ../a
+chmod 700 a/.hg