zammad: add module test

nixos/tests/all-tests.nix

@@ -571,6 +571,7 @@ in
   xxh = handleTest ./xxh.nix {};
   yabar = handleTest ./yabar.nix {};
   yggdrasil = handleTest ./yggdrasil.nix {};
+  zammad = handleTest ./zammad {};
   zfs = handleTest ./zfs.nix {};
   zigbee2mqtt = handleTest ./zigbee2mqtt.nix {};
   zoneminder = handleTest ./zoneminder.nix {};

nixos/tests/zammad/default.nix

@@ -0,0 +1,27 @@
+import ./make-test-python.nix (
+  { lib, ... }:
+
+    {
+      name = "zammad";
+
+      meta.maintainers = with lib.maintainers; [ garbas ];
+
+      nodes.machine = {
+        services.zammad.enable = true;
+        services.zammad.secretsFile = "${./test_secrets}";
+      };
+
+      testScript = ''
+        start_all()
+        machine.wait_for_unit("postgresql.service")
+        machine.wait_for_unit("zammad-web.service")
+        machine.wait_for_unit("zammad-websocket.service")
+        machine.wait_for_unit("zammad-scheduler.service")
+        # without the grep the command does not produce valid utf-8 for some reason
+        with subtest("welcome screen loads"):
+            machine.succeed(
+                "curl -sSfL http://localhost:3000/ | grep '<title>Zammad Helpdesk</title>'"
+            )
+      '';
+    }
+)

nixos/tests/zammad/test_secrets

@@ -0,0 +1,2 @@
+PGPASSWORD=12345
+SECRET_KEY_BASE=52882ef142066e09ab99ce816ba72522e789505caba224a52d750ec7dc872c2c371b2fd19f16b25dfbdd435a4dd46cb3df9f82eb63fafad715056bdfe25740d6