nixos/onlyoffice: add simple test

nixos/tests/all-tests.nix

@@ -1139,6 +1139,7 @@ in
   ombi = runTest ./ombi.nix;
   omnom = runTest ./omnom;
   oncall = runTest ./web-apps/oncall.nix;
+  onlyoffice = runTest ./onlyoffice.nix;
   open-web-calendar = runTest ./web-apps/open-web-calendar.nix;
   open-webui = runTest ./open-webui.nix;
   openarena = runTest ./openarena.nix;

nixos/tests/onlyoffice.nix

@@ -0,0 +1,30 @@
+let
+  port = 8000;
+in
+{
+  name = "onlyoffice";
+
+  nodes.machine =
+    { pkgs, ... }:
+    {
+      services.onlyoffice = {
+        enable = true;
+        inherit port;
+        hostname = "office.example.com";
+        securityNonceFile = "${pkgs.writeText "nixos-test-onlyoffice-nonce.conf" ''
+          set $secure_link_secret "nixostest";
+        ''}";
+      };
+
+      networking.hosts = {
+        "::1" = [ "office.example.com" ];
+      };
+    };
+
+  testScript = ''
+    machine.wait_for_unit("onlyoffice-docservice.service")
+    machine.wait_for_unit("onlyoffice-converter.service")
+    machine.wait_for_open_port(${builtins.toString port})
+    machine.succeed("curl --fail http://office.example.com/healthcheck")
+  '';
+}