[WIP] Improved the test for setup command

| Q               | A
| --------------- | ---
| Bug fix?        | yes
| New feature?    | no
| BC breaks?      | no
| Deprecations?   | no
| Tests pass?     | no
| Related tickets | 
| License         | GNU GPLv3

- [ ] Fixed the creation of a `setup.ini` on `<cachedir>/<arch>/`