f6d6206843
Before the change `tests` eval failed for non-existent `displaylink`
nixos test as:
$ nix build --no-link -f. displaylink.tests
error: attribute 'displaylink' missing
72| passthru = {
73| tests = {
| ^
74| inherit (nixosTests) displaylink;
As far as I can see `displaylink` was never added to `nixos/tests/all-tests.nix`.