nixpkgs/nixos/tests/fancontrol.nix

import ./make-test-python.nix ({ pkgs, ... } : {
  name = "fancontrol";
  meta = with pkgs.lib.maintainers; {
    maintainers = [ evils ];
  };

  nodes.machine = { ... }: {
    imports = [ ../modules/profiles/minimal.nix ];
    hardware.fancontrol.enable = true;
    hardware.fancontrol.config = ''
      INTERVAL=42
      DEVPATH=hwmon1=devices/platform/dummy
      DEVNAME=hwmon1=dummy
      FCTEMPS=hwmon1/device/pwm1=hwmon1/device/temp1_input
      FCFANS=hwmon1/device/pwm1=hwmon1/device/fan1_input
      MINTEMP=hwmon1/device/pwm1=25
      MAXTEMP=hwmon1/device/pwm1=65
      MINSTART=hwmon1/device/pwm1=150
      MINSTOP=hwmon1/device/pwm1=0
    '';
    };

  # This configuration cannot be valid for the test VM, so it's expected to get an 'outdated' error.
  testScript = ''
    start_all()
    # can't wait for unit fancontrol.service because it doesn't become active due to invalid config
    # fancontrol.service is WantedBy multi-user.target
    machine.wait_for_unit("multi-user.target")
    machine.succeed(
        "journalctl -eu fancontrol | tee /dev/stderr | grep 'Configuration appears to be outdated'"
    )
    machine.shutdown()
  '';
})