create shell script to run unittests

diff --git a/run_unittests.sh b/run_unittests.sh
new file mode 100755 (executable)
index 0000000..10d6501
--- /dev/null
+++ b/run_unittests.sh
@@ -0,0 +1,5 @@
+#!/bin/sh
+
+# run unittest suite using python2 and python3
+
+python2 -m unittest discover test && python3 -m unittest discover test