diff --git a/tests/utests/ofagent/test_loxi_ofp13_util.py b/tests/utests/ofagent/test_loxi_ofp13_util.py
new file mode 100644
index 0000000..41657f2
--- /dev/null
+++ b/tests/utests/ofagent/test_loxi_ofp13_util.py
@@ -0,0 +1,12 @@
+from unittest import TestCase, main
+import loxi.of13 as ofp
+
+class TestConection_mgr(TestCase):
+
+    def test_bitmap_to_version(self):
+        bitmaps = [18]
+        versions = ofp.util.bitmap_to_version(bitmaps)
+        self.assertEqual(versions,[1,4])
+
+if __name__ == '__main__':
+    main()