How to reset the meta store with Hive on Spark?

I want to reset the Hive Meta Store with Hive on Spark in a unit test.

So far, I've reconfigured the JDO to use a in-memory Derby DB:

System.setProperty("javax.jdo.option.ConnectionURL", "jdbc:derby:memory:metastore_db;create=true");
System.setProperty("javax.jdo.option.ConnectionDriverName", "org.apache.derby.jdbc.EmbeddedDriver");

There seems to be no proper life cycle management for JDO in Hive, so Hive/JDO complains if I drop or shutdown the database.

Does anybody know of a way to reset the meta store so that each test case runs with a fresh, clean meta store?