tests: adding metabase service test

nixos/tests/all-tests.nix

@@ -150,6 +150,7 @@ in
   mediawiki = handleTest ./mediawiki.nix {};
   memcached = handleTest ./memcached.nix {};
   mesos = handleTest ./mesos.nix {};
+  metabase = handleTest ./metabase.nix {};
   miniflux = handleTest ./miniflux.nix {};
   minio = handleTest ./minio.nix {};
   misc = handleTest ./misc.nix {};

nixos/tests/metabase.nix

@@ -0,0 +1,20 @@
+import ./make-test.nix ({ pkgs, ... }: {
+  name = "metabase";
+  meta = with pkgs.stdenv.lib.maintainers; {
+    maintainers = [ mmahut ];
+  };
+
+  nodes = {
+    machine = { ... }: {
+      services.metabase.enable = true;
+      virtualisation.memorySize = 1024;
+    };
+  };
+
+  testScript = ''
+    startAll;
+    $machine->waitForUnit("metabase.service");
+    $machine->waitForOpenPort(3000);
+    $machine->waitUntilSucceeds("curl -L http://localhost:3000/setup | grep Metabase");
+  '';
+})