diff --git a/tests/gen_expected.sh b/tests/gen_expected.sh
new file mode 100755
index 0000000..0dc3f8a
--- /dev/null
+++ b/tests/gen_expected.sh
@@ -0,0 +1,2 @@
+dfmt --braces=allman $1.d > allman/$1.d.ref
+dfmt --braces=otbs $1.d > otbs/$1.d.ref