Comment # 13 on bug 922023 from Josef Reidinger

to summary advantages and disadvantages:

Martin VNC approach:

advantages:
- non-intrusive
- test real code

disadvantages:
- need explicitelly specify if need qt or ncurses
- adds requirements for tests, can increase significantly build env

Test UI approach:

advantages:
- quick as it do not create anything real
- no special initialization needed, so can be default when require yast without
any ui component

disadvantages:
- more code and work
- code to maintain
- can have bugs that are not in production env