diff --git a/tests/test_util.py b/tests/test_util.py
new file mode 100644
index 0000000..8af7bae
--- /dev/null
+++ b/tests/test_util.py
@@ -0,0 +1,9 @@
+from unittest import TestCase
+
+from combo_lock.util import get_ram_directory
+
+
+class TestComboLock(TestCase):
+    def test_ram_dir(self):
+        ram_dir = get_ram_directory("combo_locks")
+        assert(ram_dir is not None)