nixos/tests: fix discrepancy between nix-build and nix build

nixos/tests/all-tests.nix

@@ -464,7 +464,7 @@ in {
   keymap = handleTest ./keymap.nix {};
   knot = handleTest ./knot.nix {};
   komga = handleTest ./komga.nix {};
-  krb5 = discoverTests (import ./krb5 {});
+  krb5 = discoverTests (import ./krb5);
   ksm = handleTest ./ksm.nix {};
   kthxbye = handleTest ./kthxbye.nix {};
   kubernetes = handleTestOn ["x86_64-linux"] ./kubernetes {};

nixos/tests/freetube.nix

@@ -40,4 +40,4 @@ let
       '';
     });
 in
-builtins.mapAttrs (k: v: mkTest k v { }) tests
+builtins.mapAttrs (k: v: mkTest k v) tests

nixos/tests/keycloak.nix

@@ -6,8 +6,8 @@ let
   certs = import ./common/acme/server/snakeoil-certs.nix;
   frontendUrl = "https://${certs.domain}";
 
-  keycloakTest = import ./make-test-python.nix (
-    { pkgs, databaseType, ... }:
+  keycloakTest = databaseType: import ./make-test-python.nix (
+    { pkgs, ... }:
     let
       initialAdminPassword = "h4Iho\"JFn't2>iQIR9";
       adminPasswordFile = pkgs.writeText "admin-password" "${initialAdminPassword}";
@@ -76,16 +76,18 @@ let
             enabled = true;
             realm = "test-realm";
             clients = [ client ];
-            users = [(
-              user // {
-                enabled = true;
-                credentials = [{
-                  type = "password";
-                  temporary = false;
-                  value = password;
-                }];
-              }
-            )];
+            users = [
+              (
+                user // {
+                  enabled = true;
+                  credentials = [{
+                    type = "password";
+                    temporary = false;
+                    value = password;
+                  }];
+                }
+              )
+            ];
           };
 
           realmDataJson = pkgs.writeText "realm-data.json" (builtins.toJSON realm);
@@ -177,7 +179,7 @@ let
   );
 in
 {
-  postgres = keycloakTest { databaseType = "postgresql"; };
-  mariadb = keycloakTest { databaseType = "mariadb"; };
-  mysql = keycloakTest { databaseType = "mysql"; };
+  postgres = keycloakTest "postgresql";
+  mariadb = keycloakTest "mariadb";
+  mysql = keycloakTest "mysql";
 }

nixos/tests/krb5/default.nix

@@ -1,4 +1,3 @@
-{ system ? builtins.currentSystem }:
 {
-  example-config = import ./example-config.nix { inherit system; };
+  example-config = import ./example-config.nix;
 }

nixos/tests/opensearch.nix

@@ -1,7 +1,7 @@
 let
-  opensearchTest =
+  opensearchTest = extraSettings:
     import ./make-test-python.nix (
-      { pkgs, lib, extraSettings ? {} }: {
+      { pkgs, lib, ... }: {
         name = "opensearch";
         meta.maintainers = with pkgs.lib.maintainers; [ shyim ];
 
@@ -27,20 +27,18 @@ in
 {
   opensearch = opensearchTest {};
   opensearchCustomPathAndUser = opensearchTest {
-    extraSettings = {
-      services.opensearch.dataDir = "/var/opensearch_test";
-      services.opensearch.user = "open_search";
-      services.opensearch.group = "open_search";
-      systemd.tmpfiles.rules = [
-        "d /var/opensearch_test 0700 open_search open_search -"
-      ];
-      users = {
-        groups.open_search = {};
-        users.open_search = {
-          description = "OpenSearch daemon user";
-          group = "open_search";
-          isSystemUser = true;
-        };
+    services.opensearch.dataDir = "/var/opensearch_test";
+    services.opensearch.user = "open_search";
+    services.opensearch.group = "open_search";
+    systemd.tmpfiles.rules = [
+      "d /var/opensearch_test 0700 open_search open_search -"
+    ];
+    users = {
+      groups.open_search = { };
+      users.open_search = {
+        description = "OpenSearch daemon user";
+        group = "open_search";
+        isSystemUser = true;
       };
     };
   };

nixos/tests/vscodium.nix

@@ -76,4 +76,4 @@ let
     });
 
 in
-builtins.mapAttrs (k: v: mkTest k v { }) tests
+builtins.mapAttrs (k: v: mkTest k v) tests