nixos/agate: add nixos test

nixos/tests/all-tests.nix

@@ -32,6 +32,7 @@ in
   acme = handleTest ./acme.nix {};
   adguardhome = handleTest ./adguardhome.nix {};
   aesmd = handleTest ./aesmd.nix {};
+  agate = handleTest ./web-servers/agate.nix {};
   agda = handleTest ./agda.nix {};
   airsonic = handleTest ./airsonic.nix {};
   amazon-init-shell = handleTest ./amazon-init-shell.nix {};

nixos/tests/web-servers/agate.nix

@@ -0,0 +1,29 @@
+import ../make-test-python.nix (
+  { pkgs, lib, ... }:
+  {
+    name = "agate";
+    meta = with lib.maintainers; { maintainers = [ jk ]; };
+
+    nodes = {
+      geminiserver = { pkgs, ... }: {
+        services.agate = {
+          enable = true;
+          hostnames = [ "localhost" ];
+          contentDir = pkgs.writeTextDir "index.gmi" ''
+            # Hello NixOS!
+          '';
+        };
+      };
+    };
+
+    testScript = { nodes, ... }: ''
+      geminiserver.wait_for_unit("agate")
+      geminiserver.wait_for_open_port(1965)
+
+      with subtest("check is serving over gemini"):
+        response = geminiserver.succeed("${pkgs.gmni}/bin/gmni -j once -i -N gemini://localhost:1965")
+        print(response)
+        assert "Hello NixOS!" in response
+    '';
+  }
+)

pkgs/servers/gemini/agate/default.nix

@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchFromGitHub, rustPlatform, libiconv, Security }:
+{ lib, stdenv, nixosTests, fetchFromGitHub, rustPlatform, libiconv, Security }:
 
 rustPlatform.buildRustPackage rec {
   pname = "agate";
@@ -23,6 +23,8 @@ rustPlatform.buildRustPackage rec {
     runHook postInstallCheck
   '';
 
+  passthru.tests = { inherit (nixosTests) agate; };
+
   meta = with lib; {
     homepage = "https://github.com/mbrubeck/agate";
     changelog = "https://github.com/mbrubeck/agate/blob/master/CHANGELOG.md";