diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..c527cf1
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "test/test_helper/bats-support"]
+	path = test/test_helper/bats-support
+	url = https://github.com/ztombol/bats-support
diff --git a/test/test_helper/bats-support b/test/test_helper/bats-support
new file mode 160000
index 0000000..d0a1318
--- /dev/null
+++ b/test/test_helper/bats-support
@@ -0,0 +1 @@
+Subproject commit d0a131831c487a1f1141e76d3ab386c89642cdff