From 6badac486f3c914dcca8f49c5aff35a3e4b0ef07 Mon Sep 17 00:00:00 2001
From: h7x4 <h7x4@nani.wtf>
Date: Sat, 18 Oct 2025 16:08:29 +0900
Subject: [PATCH] nixos/tests/logkeys: init

---
 nixos/tests/all-tests.nix           |  1 +
 nixos/tests/logkeys.nix             | 34 +++++++++++++++++++++++++++++
 pkgs/by-name/lo/logkeys/package.nix |  3 +++
 3 files changed, 38 insertions(+)
 create mode 100644 nixos/tests/logkeys.nix

diff --git a/nixos/tests/all-tests.nix b/nixos/tests/all-tests.nix
index 66a599383a95..1f9c38680cbd 100644
--- a/nixos/tests/all-tests.nix
+++ b/nixos/tests/all-tests.nix
@@ -853,6 +853,7 @@ in
   localsend = runTest ./localsend.nix;
   locate = runTest ./locate.nix;
   login = runTest ./login.nix;
+  logkeys = runTest ./logkeys.nix;
   logrotate = runTest ./logrotate.nix;
   loki = runTest ./loki.nix;
   #logstash = handleTest ./logstash.nix {};
diff --git a/nixos/tests/logkeys.nix b/nixos/tests/logkeys.nix
new file mode 100644
index 000000000000..eeb4c27ee2b0
--- /dev/null
+++ b/nixos/tests/logkeys.nix
@@ -0,0 +1,34 @@
+{ lib, ... }:
+{
+  name = "logkeys";
+  meta.maintainers = with lib.maintainers; [ h7x4 ];
+
+  nodes.machine =
+    { pkgs, ... }:
+    {
+      imports = [ ./common/user-account.nix ];
+
+      services.getty.autologinUser = "alice";
+
+      services.logkeys = {
+        enable = true;
+        device = "virtio-kbd";
+      };
+
+      # logkeys doesn't support specifying a device in `by-path`.
+      # In order not to make the test dependend on the ordering of the input event devices,
+      # we'll create a custom symlink before starting the service.
+      systemd.services.logkeys.serviceConfig.ExecStartPre = [
+        "+${lib.getExe' pkgs.coreutils "ln"} -s /dev/input/by-path/pci-0000:00:0a.0-event-kbd /dev/input/virtio-kbd"
+      ];
+    };
+
+  testScript = ''
+    machine.wait_for_unit("getty@tty1.service")
+    machine.wait_until_succeeds("pgrep -f 'agetty.*tty1'")
+    machine.wait_for_unit("logkeys.service")
+
+    machine.send_chars("hello world\n")
+    machine.wait_until_succeeds("grep 'hello world' /var/log/logkeys.log")
+  '';
+}
diff --git a/pkgs/by-name/lo/logkeys/package.nix b/pkgs/by-name/lo/logkeys/package.nix
index 16bb1c6ba666..812028117977 100644
--- a/pkgs/by-name/lo/logkeys/package.nix
+++ b/pkgs/by-name/lo/logkeys/package.nix
@@ -7,6 +7,7 @@
   which,
   procps,
   kbd,
+  nixosTests,
 }:
 
 stdenv.mkDerivation {
@@ -38,6 +39,8 @@ stdenv.mkDerivation {
 
   preConfigure = "./autogen.sh";
 
+  passthru.tests.nixos = nixosTests.logkeys;
+
   meta = with lib; {
     description = "GNU/Linux keylogger that works";
     license = licenses.gpl3;