nginx-pipeline: add basic test

.gitignore

@@ -0,0 +1 @@
+result

flake.lock

@@ -1,23 +1,23 @@
 {
   "nodes": {
-    "nixpkgs-lib": {
+    "nixpkgs": {
       "locked": {
-        "lastModified": 1673743903,
-        "narHash": "sha256-sloY6KYyVOozJ1CkbgJPpZ99TKIjIvM+04V48C04sMQ=",
-        "owner": "nix-community",
-        "repo": "nixpkgs.lib",
-        "rev": "7555e2dfcbac1533f047021f1744ac8871150f9f",
+        "lastModified": 1706098335,
+        "narHash": "sha256-r3dWjT8P9/Ah5m5ul4WqIWD8muj5F+/gbCdjiNVBKmU=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "a77ab169a83a4175169d78684ddd2e54486ac651",
         "type": "github"
       },
       "original": {
-        "owner": "nix-community",
-        "repo": "nixpkgs.lib",
-        "type": "github"
+        "id": "nixpkgs",
+        "ref": "nixos-23.11",
+        "type": "indirect"
       }
     },
     "root": {
       "inputs": {
-        "nixpkgs-lib": "nixpkgs-lib"
+        "nixpkgs": "nixpkgs"
       }
     }
   },

flake.nix

@@ -2,13 +2,29 @@
   description = "NixOS modules for matrix related services";
 
   inputs = {
-    nixpkgs-lib.url = github:nix-community/nixpkgs.lib;
+    nixpkgs.url = "nixpkgs/nixos-23.11";
   };
 
-  outputs = { self, nixpkgs-lib }: {
+  outputs = { self, nixpkgs }: {
     nixosModules = {
       default = import ./module.nix;
     };
-    lib = import ./lib.nix { lib = nixpkgs-lib.lib; };
+
+    lib = import ./lib.nix { lib = nixpkgs.lib; };
+
+    packages = let
+      forAllSystems = f:
+        nixpkgs.lib.genAttrs [
+          "x86_64-linux"
+          "aarch64-linux"
+          "x86_64-darwin"
+          "aarch64-darwin"
+        ] (system: f nixpkgs.legacyPackages.${system});
+    in forAllSystems (pkgs: {
+      tests = import ./tests {
+        inherit nixpkgs pkgs;
+        matrix-lib = self.lib;
+      };
+    });
   };
 }

tests/default.nix

@@ -0,0 +1,4 @@
+{ nixpkgs, pkgs, matrix-lib, ... }:
+{
+  nginx-pipeline = pkgs.callPackage ./nginx-pipeline { inherit nixpkgs matrix-lib; };
+}

tests/nginx-pipeline/default.nix

@@ -0,0 +1,39 @@
+{ nixpkgs, lib, matrix-lib, writeText, ... }:
+let
+  nixosConfig = nixpkgs.lib.nixosSystem {
+    system = "x86_64-linux";
+    modules = [
+      ../../module.nix
+      {
+        system.stateVersion = "23.11";
+        boot.isContainer = true;
+        services.matrix-synapse-next = {
+          enable = true;
+          enableNginx = true;
+
+          workers = {
+            enableMetrics = true;
+
+            federationSenders = 3;
+            federationReceivers = 3;
+            initialSyncers = 1;
+            normalSyncers = 1;
+            eventPersisters = 1;
+            useUserDirectoryWorker = true;
+          };
+
+          settings.server_name = "example.com";
+        };
+      }
+    ];
+  };
+
+  inherit (nixosConfig.config.services.matrix-synapse-next.workers) instances;
+in
+  writeText "matrix-synapse-next-nginx-pipeline-test.txt" ''
+    ${(lib.generators.toPretty {}) instances}
+
+    ====================================================
+
+    ${(lib.generators.toPretty {}) (matrix-lib.mapWorkersToUpstreamsByType instances)}
+  ''