nixpkgs/nixos/tests/mpd.nix
Emmanuel Rosa 5509a4d273 mpd: add NixOS tests
This change adds NixOS tests for the MPD (Music Player Daemon) module.
Tests include:

- Playing audio locally using ALSA directly.
- Playing audio locally using PulseAudio (backed by ALSA).
- Playing audio from an external client.
- Rejecting an external client when it's not explicitly allowed (default configuration).

refs #41772
2018-06-19 20:01:25 -04:00

120 lines
3.7 KiB
Nix

import ./make-test.nix ({ pkgs, ... }:
let
track = pkgs.fetchurl {
# Sourced from http://freemusicarchive.org/music/Blue_Wave_Theory/Surf_Music_Month_Challenge/Skyhawk_Beach_fade_in
# License: http://creativecommons.org/licenses/by-sa/4.0/
name = "Blue_Wave_Theory-Skyhawk_Beach.mp3";
url = https://freemusicarchive.org/file/music/ccCommunity/Blue_Wave_Theory/Surf_Music_Month_Challenge/Blue_Wave_Theory_-_04_-_Skyhawk_Beach.mp3;
sha256 = "0xw417bxkx4gqqy139bb21yldi37xx8xjfxrwaqa0gyw19dl6mgp";
};
defaultCfg = rec {
user = "mpd";
group = "mpd";
dataDir = "/var/lib/mpd";
musicDirectory = "${dataDir}/music";
};
defaultMpdCfg = with defaultCfg; {
inherit dataDir musicDirectory user group;
enable = true;
};
musicService = { user, group, musicDirectory }: {
description = "Sets up the music file(s) for MPD to use.";
requires = [ "mpd.service" ];
after = [ "mpd.service" ];
wantedBy = [ "default.target" ];
script = ''
mkdir -p ${musicDirectory} && chown -R ${user}:${group} ${musicDirectory}
cp ${track} ${musicDirectory}
chown ${user}:${group} ${musicDirectory}/$(basename ${track})
'';
};
mkServer = { mpd, musicService, }:
{ boot.kernelModules = [ "snd-dummy" ];
sound.enable = true;
services.mpd = mpd;
systemd.services.musicService = musicService;
};
in {
name = "mpd";
meta = with pkgs.stdenv.lib.maintainers; {
maintainers = [ emmanuelrosa ];
};
nodes =
{ client =
{ config, pkgs, ... }: { };
serverALSA =
{ config, pkgs, ... }: (mkServer {
mpd = defaultMpdCfg // {
network.listenAddress = "any";
extraConfig = ''
audio_output {
type "alsa"
name "ALSA"
mixer_type "null"
}
'';
};
musicService = with defaultMpdCfg; musicService { inherit user group musicDirectory; };
}) // { networking.firewall.allowedTCPPorts = [ 6600 ]; };
serverPulseAudio =
{ config, pkgs, ... }: (mkServer {
mpd = defaultMpdCfg // {
extraConfig = ''
audio_output {
type "pulse"
name "The Pulse"
}
'';
};
musicService = with defaultCfg; musicService { inherit user group musicDirectory; };
}) // { hardware.pulseaudio.enable = true; };
};
testScript = ''
my $mpc = "${pkgs.mpc_cli}/bin/mpc --wait";
# Connects to the given server and attempts to play a tune.
sub play_some_music {
my $server = $_[0];
$server->waitForUnit("mpd.service");
$server->succeed("$mpc update");
my @tracks = $server->execute("$mpc ls");
for my $track (split(/\n/, $tracks[1])) {
$server->succeed("$mpc add $track");
};
my @added_tracks = $server->execute("$mpc listall");
(length $added_tracks[1]) > 0 or die "Failed to add audio tracks to the playlist.";
$server->succeed("$mpc play");
my @status = $server->execute("$mpc status");
my @output = split(/\n/, $status[1]);
$output[1] =~ /.*playing.*/ or die "Audio track is not playing, as expected.";
$server->succeed("$mpc stop");
};
play_some_music($serverALSA);
play_some_music($serverPulseAudio);
$client->succeed("$mpc -h serverALSA status");
# The PulseAudio-based server is configured not to accept external client connections
# to perform the following test:
$client->fail("$mpc -h serverPulseAudio status");
'';
})