Until now ansible-freeipa repository only had playbook tests. This
commit introduces the ability of creating TestCase classes connected to
the master host. This connection can be used to run commands in the
managed host after the ansible playbook execution is the allowing the
verification of the machine state.
* Adapted tests/test_playbook_runs.py script to allow tests to be
executed from a docker container.
* Added molecule scenarios to create/destroy test containers and
respective documentation in tests/README.md.
Running test_playbook_runs.py would result of running only the
last collected test but showing the name of the other tests instead.
To fix that the test_path was moved to an argument set by a method
decorator.
