test: check hm beta module integration (#245)

Author: luisnquin

flake.nix

@@ -14,11 +14,9 @@
     nixpkgs,
     home-manager,
   }: let
-    supportedSystems = [
-      "x86_64-linux"
-      "aarch64-linux"
-      "aarch64-darwin"
-    ];
+    linuxSystems = ["x86_64-linux" "aarch64-linux"];
+
+    supportedSystems = linuxSystems ++ ["aarch64-darwin"];
 
     forAllSystems = f:
       nixpkgs.lib.genAttrs supportedSystems (
@@ -29,6 +27,14 @@
 
     formatter = forAllSystems (pkgs: pkgs.alejandra);
 
+    checks =
+      nixpkgs.lib.genAttrs linuxSystems
+      (system:
+        import ./tests {
+          inherit self home-manager;
+          nixpkgs = nixpkgs.legacyPackages.${system};
+        });
+
     homeModules = {
       beta = import ./hm-module {
         inherit self home-manager;

tests/default.nix

@@ -0,0 +1,50 @@
+{
+  self,
+  nixpkgs,
+  home-manager,
+}: let
+  pkgs = nixpkgs;
+
+  mkGenericTest = name: suitePath: let
+    suite = import suitePath {
+      inherit pkgs home-manager;
+      zen-browser-flake = self;
+    };
+  in
+    pkgs.testers.nixosTest {
+      inherit name;
+      nodes.machine = {
+        imports = [
+          {
+            imports = [home-manager.nixosModules.home-manager];
+
+            users.users.testuser = {
+              isNormalUser = true;
+              home = "/home/testuser";
+              createHome = true;
+              group = "users";
+              uid = 1000;
+            };
+
+            home-manager = {
+              useGlobalPkgs = true;
+              useUserPackages = true;
+
+              users.testuser = {
+                imports = [suite.homeModule];
+
+                home.stateVersion = "26.05";
+              };
+            };
+          }
+        ];
+      };
+
+      inherit (suite) testScript;
+    };
+
+  suites = {
+    "enable-beta-via-module" = ./enable-beta.nix;
+  };
+in
+  pkgs.lib.mapAttrs (name: path: mkGenericTest name path) suites

tests/enable-beta.nix

@@ -0,0 +1,16 @@
+{zen-browser-flake, ...}: {
+  homeModule = {
+    imports = [zen-browser-flake.homeModules.beta];
+
+    programs.zen-browser = {
+      enable = true;
+      suppressXdgMigrationWarning = true;
+    };
+  };
+
+  testScript = ''
+    machine.wait_for_unit("multi-user.target")
+    machine.wait_for_unit("home-manager-testuser.service")
+    machine.succeed("su - testuser -c 'zen-beta --version'")
+  '';
+}