nixos/tests/kbd-setfont-decompress: init

(cherry picked from commit 7fb927c9e54170c43e2579d1f0f20efd719ca7e8)

nixos/tests/all-tests.nix

@@ -200,6 +200,7 @@ in
   jitsi-meet = handleTest ./jitsi-meet.nix {};
   k3s = handleTest ./k3s.nix {};
   kafka = handleTest ./kafka.nix {};
+  kbd-setfont-decompress = handleTest ./kbd-setfont-decompress.nix {};
   keepalived = handleTest ./keepalived.nix {};
   keepassxc = handleTest ./keepassxc.nix {};
   kerberos = handleTest ./kerberos/default.nix {};

nixos/tests/kbd-setfont-decompress.nix

@@ -0,0 +1,21 @@
+import ./make-test-python.nix ({ lib, pkgs, ... }:
+{
+  name = "kbd-setfont-decompress";
+
+  meta.maintainers = with lib.maintainers; [ oxalica ];
+
+  machine = { ... }: {};
+
+  testScript = ''
+    machine.succeed("gzip -cd ${pkgs.terminus_font}/share/consolefonts/ter-v16b.psf.gz >font.psf")
+    machine.succeed("gzip <font.psf >font.psf.gz")
+    machine.succeed("bzip2 <font.psf >font.psf.bz2")
+    machine.succeed("xz <font.psf >font.psf.xz")
+    machine.succeed("zstd <font.psf >font.psf.zst")
+    # setfont returns 0 even on error.
+    assert machine.succeed("PATH= ${pkgs.kbd}/bin/setfont font.psf.gz  2>&1") == ""
+    assert machine.succeed("PATH= ${pkgs.kbd}/bin/setfont font.psf.bz2 2>&1") == ""
+    assert machine.succeed("PATH= ${pkgs.kbd}/bin/setfont font.psf.xz  2>&1") == ""
+    assert machine.succeed("PATH= ${pkgs.kbd}/bin/setfont font.psf.zst 2>&1") == ""
+  '';
+})

pkgs/os-specific/linux/kbd/default.nix

@@ -61,7 +61,9 @@ stdenv.mkDerivation rec {
   buildInputs = [ check pam ];
   nativeBuildInputs = [ autoreconfHook pkg-config flex ];
 
-  passthru.tests = nixosTests.keymap;
+  passthru.tests = {
+    inherit (nixosTests) keymap kbd-setfont-decompress;
+  };
 
   meta = with lib; {
     homepage = "https://kbd-project.org/";