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|
import ./make-test-python.nix ({ pkgs, firefoxPackage, ... }:
let firefoxPackage' = firefoxPackage.override (args: {
extraPrefsFiles = (args.extraPrefsFiles or []) ++ [
# make sure that autoplay is enabled by default for the audio test
(builtins.toString (builtins.toFile "autoplay-pref.js" ''defaultPref("media.autoplay.default",0);''))
];
});
in
{
name = firefoxPackage'.unwrapped.pname;
meta = with pkgs.lib.maintainers; {
maintainers = [ eelco shlevy ];
};
nodes.machine =
{ pkgs, ... }:
{ imports = [ ./common/x11.nix ];
environment.systemPackages = [
firefoxPackage'
pkgs.xdotool
];
# Create a virtual sound device, with mixing
# and all, for recording audio.
boot.kernelModules = [ "snd-aloop" ];
sound.enable = true;
sound.extraConfig = ''
pcm.!default {
type plug
slave.pcm pcm.dmixer
}
pcm.dmixer {
type dmix
ipc_key 1
slave {
pcm "hw:Loopback,0,0"
rate 48000
periods 128
period_time 0
period_size 1024
buffer_size 8192
}
}
pcm.recorder {
type hw
card "Loopback"
device 1
subdevice 0
}
'';
systemd.services.audio-recorder = {
description = "Record NixOS test audio to /tmp/record.wav";
script = "${pkgs.alsa-utils}/bin/arecord -D recorder -f S16_LE -r48000 /tmp/record.wav";
};
};
testScript = ''
from contextlib import contextmanager
@contextmanager
def record_audio(machine: Machine):
"""
Perform actions while recording the
machine audio output.
"""
machine.systemctl("start audio-recorder")
yield
machine.systemctl("stop audio-recorder")
def wait_for_sound(machine: Machine):
"""
Wait until any sound has been emitted.
"""
machine.wait_for_file("/tmp/record.wav")
while True:
# Get at most 2M of the recording
machine.execute("tail -c 2M /tmp/record.wav > /tmp/last")
# Get the exact size
size = int(machine.succeed("stat -c '%s' /tmp/last").strip())
# Compare it against /dev/zero using `cmp` (skipping 50B of WAVE header).
# If some non-NULL bytes are found it returns 1.
status, output = machine.execute(
f"cmp -i 50 -n {size - 50} /tmp/last /dev/zero 2>&1"
)
if status == 1:
break
machine.sleep(2)
machine.wait_for_x()
with subtest("Wait until Firefox has finished loading the Valgrind docs page"):
machine.execute(
"xterm -e '${firefoxPackage'.unwrapped.binaryName} file://${pkgs.valgrind.doc}/share/doc/valgrind/html/index.html' >&2 &"
)
machine.wait_for_window("Valgrind")
machine.sleep(40)
with subtest("Check whether Firefox can play sound"):
with record_audio(machine):
machine.succeed(
"${firefoxPackage'.unwrapped.binaryName} file://${pkgs.sound-theme-freedesktop}/share/sounds/freedesktop/stereo/phone-incoming-call.oga >&2 &"
)
wait_for_sound(machine)
machine.copy_from_vm("/tmp/record.wav")
with subtest("Close sound test tab"):
machine.execute("xdotool key ctrl+w")
with subtest("Close default browser prompt"):
machine.execute("xdotool key space")
with subtest("Wait until Firefox draws the developer tool panel"):
machine.sleep(10)
machine.succeed("xwininfo -root -tree | grep Valgrind")
machine.screenshot("screen")
'';
})
|
