Add missing virt states unit tests
Add missing virt states unit tests

So far only the virt.running state is unit tested. Add tests for the
other states. Deprecated virt states have been purposedly left untested.

(cherry picked from commit fc75872fb63e254eecc782168ff8b37157d9e514)

saltstack/salt,saltstack/salt,saltstack/salt,saltstack/salt,saltstack/salt