All the setup/teardown/pre/post/conditions template methods
now are required to return void. This was warned with phpunit 7
and now is enforced.
At the same time, fix a few wrong function names,
provider data and param types, return statements...
Now backup and restore operations free logger resources calling
to the destroy() method. This commit ensures:
1) That gc_collect_cycles() is not used anymore in backup-related tests.
2) That all backup and restore controllers in test do always call
to the detroy() method.
3) Some unset() calls, needed to make gc_collect_cycles() are not used
anymore.
Eloy Lafuente (stronk7)