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# NixOS test for usbrelayd
#
# It is not stored in nixos/tests directory, because it requires the
# USB relay connected to the host computer and as such, it cannot be
# run automatically.
#
# Run this test as:
#
# nix-build test.nix -A driverInteractive && ./result/bin/nixos-test-driver --no-interactive
#
# The interactive driver is required because the default
# (non-interactive) driver uses qemu without support for passing USB
# devices to the guest (see
# https://discourse.nixos.org/t/hardware-dependent-nixos-tests/18564
# for discussion of other alternatives).
import ../../../../nixos/tests/make-test-python.nix ({ pkgs, ... }: {
name = "usbrelayd";
nodes.machine = {
virtualisation.qemu.options = [
"-device qemu-xhci"
"-device usb-host,vendorid=0x16c0,productid=0x05df"
];
services.usbrelayd.enable = true;
systemd.services.usbrelayd = {
after = [ "mosquitto.service" ];
};
services.mosquitto = {
enable = true;
listeners = [{
acl = [ "pattern readwrite #" ];
omitPasswordAuth = true;
settings.allow_anonymous = true;
}];
};
environment.systemPackages = [
pkgs.usbrelay
pkgs.mosquitto
];
documentation.nixos.enable = false; # building nixos manual takes long time
};
testScript = ''
if os.waitstatus_to_exitcode(os.system("lsusb -d 16c0:05df")) != 0:
print("No USB relay detected, skipping test")
import sys
sys.exit(2)
machine.start()
# usbrelayd is started by udev when an relay is detected
machine.wait_for_unit("usbrelayd.service")
stdout = machine.succeed("usbrelay")
relay_id = stdout.split(sep="_")[0]
assert relay_id != ""
import time
time.sleep(1)
machine.succeed(f"mosquitto_pub -h localhost -t cmnd/{relay_id}/1 -m ON")
time.sleep(1)
machine.succeed(f"mosquitto_pub -h localhost -t cmnd/{relay_id}/1 -m OFF")
print("Did you see the relay switching on and off?")
'';
})
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