nixos/tests: simple zoom-us test to verify the module

nixos/tests/all-tests.nix

@@ -1503,6 +1503,7 @@ in
   zipline = runTest ./zipline.nix;
   zoneminder = runTest ./zoneminder.nix;
   zookeeper = runTest ./zookeeper.nix;
+  zoom-us = runTest ./zoom-us.nix;
   zram-generator = runTest ./zram-generator.nix;
   zrepl = runTest ./zrepl.nix;
   zsh-history = runTest ./zsh-history.nix;

nixos/tests/zoom-us.nix

@@ -0,0 +1,18 @@
+{ hostPkgs, lib, ... }:
+{
+  name = "zoom-us";
+
+  nodes.machine =
+    { pkgs, ... }:
+    {
+      imports = [ ./common/x11.nix ];
+      programs.zoom-us.enable = true;
+    };
+
+  testScript = ''
+    machine.succeed("which zoom")  # fail early if this is missing
+    machine.wait_for_x()
+    machine.execute("zoom >&2 &")
+    machine.wait_for_window("Zoom Workplace")
+  '';
+}

pkgs/by-name/zo/zoom-us/package.nix

@@ -6,6 +6,7 @@
   xar,
   cpio,
   callPackage,
+  nixosTests,
   buildFHSEnv,
 
   # Support pulseaudio by default
@@ -141,6 +142,7 @@ let
 
     passthru.updateScript = ./update.sh;
     passthru.tests.startwindow = callPackage ./test.nix { };
+    passthru.tests.nixos-module = nixosTests.zoom-us;
 
     meta = {
       homepage = "https://zoom.us/";