users: migrate to clan.nixosTests module

clanServices/users/flake-module.nix

@@ -1,18 +1,16 @@
-{ lib, self, ... }:
+{ lib, ... }:
+let
+  module = lib.modules.importApply ./default.nix { };
+in
 {
-  clan.modules = {
-    users = lib.modules.importApply ./default.nix { };
-  };
+  clan.modules.users = module;
   perSystem =
-    { pkgs, ... }:
+    { ... }:
     {
-      checks = lib.optionalAttrs (pkgs.stdenv.isLinux) {
-        users = import ./tests/vm/default.nix {
-          inherit pkgs;
-          clan-core = self;
-          nixosLib = import (self.inputs.nixpkgs + "/nixos/lib") { };
-        };
-      };
-    };
+      clan.nixosTests.users = {
+        imports = [ ./tests/vm/default.nix ];
 
+        clan.modules."@clan/users" = module;
+      };
+    };
 }

clanServices/users/tests/vm/default.nix

@@ -1,24 +1,8 @@
 {
-  pkgs,
-  nixosLib,
-  clan-core,
-  ...
-}:
-
-nixosLib.runTest (
-  { ... }:
-  {
-    imports = [
-      clan-core.modules.nixosVmTest.clanTest
-    ];
-
-    hostPkgs = pkgs;
-
   name = "users";
 
   clan = {
     directory = ./.;
-      modules."@clan/users" = ../../default.nix;
     inventory = {
       machines.server = { };
 
@@ -63,5 +47,4 @@ nixosLib.runTest (
     # server.succeed(f"echo '{password}' | su - testuser -c 'echo Login successful'")
 
   '';
-  }
-)
+}