test(scripts/install.sh): check config path permissions and ownership

[swiatekm]

This partially resolves #817

[sumo-drosiek]

LGTM

btw, I was thinking about chaining checks, as some checks require the other one. e.g. checking configuration requires configuration file to exists. I believe it would make tests a bit more cleaner

[swiatekm]

LGTM

btw, I was thinking about chaining checks, as some checks require the other one. e.g. checking configuration requires configuration file to exists. I believe it would make tests a bit more cleaner

Chaining, as in, how exactly would that look? The problem with config files specifically is that the script doesn't touch existing ones, so if you set them up outside of the script, the permissions will stay as they are. That's why I didn't simply make the permissions check part of the existence check.