[TYPO3-core] RFC #12382: Feature/Code cleanup: Add some more unit tests

[Steffen Kamper]

Hi,

Oliver Klee schrieb:
> REMINDER
> 
> ... any chance to get this checked in before rc1?
> 
> 

as tests are not in release it has lower priority, so it doesn't harm if 
they are committed after RC1

vg Steffen