Unit Testing Oozie Workflows

I am using Oozie as the tool to schedule a lot of my applications on cloudera platform. (spark, MR, Hive, HBase).

One thing which concerns me a lot is that Oozie is a untestable framework.

if I write a workflow using oozie. How do I unit test it?

are there any tools / best practices which allow me to perform an automated unit test on oozie coordinators and workflows?