nixos/soju: add tests

For now, just try creating a user with sojuctl. Actually connecting an
irc client is pretty annoying.

nixos/tests/all-tests.nix

@@ -821,6 +821,7 @@ in {
   soapui = handleTest ./soapui.nix {};
   soft-serve = handleTest ./soft-serve.nix {};
   sogo = handleTest ./sogo.nix {};
+  soju = handleTest ./soju.nix {};
   solanum = handleTest ./solanum.nix {};
   sonarr = handleTest ./sonarr.nix {};
   sonic-server = handleTest ./sonic-server.nix {};

nixos/tests/soju.nix

@@ -0,0 +1,31 @@
+import ./make-test-python.nix ({ pkgs, lib, ... }:
+let
+  certs = import ./common/acme/server/snakeoil-certs.nix;
+  domain = certs.domain;
+
+  user = "testuser";
+  pass = "hunter2";
+in
+{
+  name = "soju";
+  meta.maintainers = with lib.maintainers; [ Benjamin-L ];
+
+  nodes.machine = { ... }: {
+    services.soju = {
+      enable = true;
+      adminSocket.enable = true;
+      hostName = domain;
+      tlsCertificate = certs.${domain}.cert;
+      tlsCertificateKey = certs.${domain}.key;
+    };
+  };
+
+  testScript = ''
+    start_all()
+
+    machine.wait_for_unit("soju")
+    machine.wait_for_file("/run/soju/admin")
+
+    machine.succeed("sojuctl user create -username ${user} -password ${pass}")
+  '';
+})