* use tests instead of filters
* Don't check 'rc', use success/failed tests
- yum module use 'fail_json' which set 'failed'
- 'rc' is for backward compatibility:
bbd6b8bb42/lib/ansible/executor/task_executor.py (L571)
- besides yum module doesn't document any return values
* Allow to run tests twice in a row
ansible-test is executed with '--retry-on-error' switch, then tests must
be able to executed twice in a row.
Error was:
TASK [yum : install group] ***
ok: [testhost] => {
"attempts": 1,
"changed": false,
"failed": false,
"invocation": { [...] },
"msg": "",
"rc": 0,
"results": []
}
TASK [yum : verify installation of the group] ***
fatal: [testhost]: FAILED! => {
"assertion": "yum_result.changed",
"attempts": 1,
"changed": false,
"evaluated_to": false,
"failed": true
}