nixos/tests/confinement: Re-add description attr

The reason why I originally used the "description" attribute was that it
can be easily used to parametrise the tests so that we can specify
common constraints and apply it across a number of different
configurations.

When porting the tests to Python, the description attribute was replaced
by inlining it into the Python code, most probably because it was easier
to do in bulk since using Nix to generate the subtest parts would be
very complicated to do since we also had to please Black (a Python code
formatter that we no longer use in test scripts).

Since we now also want to support DynamicUser in systemd-confinement,
the need to parametrise the tests became apparent again because it's now
easier to refactor our subtests to run both with *and* without
DynamicUser set to true.

Signed-off-by: aszlig <aszlig@nix.build>

0 files changed, 0 insertions, 0 deletions