Unit tests as stress tests

Creating a special stressaction, which is able to call an
arbitrary existing unit test as stress action.

The setUpClass() and tearDownClass() can happen in every action,
 or just once per thread or once per stress application run,
 it is configure able option.

Change-Id: Ia5432a4d9d749aa7618e098d8eeedd70d00b0b6d
2 files changed