nixos/tests/nextcloud: test for notify_push in with-declarative-redis-and-secrets

This patch adds a subtest and corresponding configuration to
with-declarative-redis-and-secrets to test for nextcloud notify_push
to be working, just as in with-postgresql-and-redis.

As notify_push needs to connect to the database, including it
in this test checks that it can read the dbpassFile properly.

nixos/tests/nextcloud/with-declarative-redis-and-secrets.nix

@@ -34,6 +34,13 @@ runTest (
               redis = true;
               memcached = false;
             };
+            notify_push = {
+              enable = true;
+              bendDomainToLocalhost = true;
+              logLevel = "debug";
+            };
+            extraAppsEnable = true;
+            extraApps.notify_push = config.services.nextcloud.package.packages.apps.notify_push;
             # This test also validates that we can use an "external" database
             database.createLocally = false;
             config = {
@@ -96,6 +103,10 @@ runTest (
       with subtest("non-empty redis cache"):
           # redis cache should not be empty
           nextcloud.fail('test 0 -lt "$(redis-cli --pass secret --json KEYS "*" | jq "len")"')
+
+      with subtest("notify-push"):
+          client.execute("${pkgs.lib.getExe pkgs.nextcloud-notify_push.passthru.test_client} http://nextcloud ${config.adminuser} ${config.adminpass} >&2 &")
+          nextcloud.wait_until_succeeds("journalctl -u nextcloud-notify_push | grep -q \"Sending ping to ${config.adminuser}\"")
     '';
   }
 )