nixpkgs/nixos/tests/fsck.nix

{
  system ? builtins.currentSystem,
  config ? { },
  pkgs ? import ../.. { inherit system config; },
  systemdStage1 ? false,
}:

import ./make-test-python.nix {
  name = "fsck";

  nodes.machine =
    { lib, ... }:
    {
      virtualisation.emptyDiskImages = [ 1 ];

      virtualisation.fileSystems = {
        "/mnt" = {
          device = "/dev/vdb";
          fsType = "ext4";
          autoFormat = true;
        };
      };

      boot.initrd.systemd.enable = systemdStage1;
    };

  testScript =
    { nodes, ... }:
    let
      rootDevice = nodes.machine.virtualisation.rootDevice;
    in
    ''
      machine.wait_for_unit("default.target")

      with subtest("root fs is fsckd"):
          machine.succeed("journalctl -b | grep '${
            if systemdStage1 then
              "fsck.*${builtins.baseNameOf rootDevice}.*clean"
            else
              "fsck.ext4.*${rootDevice}"
          }'")

      with subtest("mnt fs is fsckd"):
          machine.succeed("journalctl -b | grep 'fsck.*vdb.*clean'")
          machine.succeed(
              "grep 'Requires=systemd-fsck@dev-vdb.service' /run/systemd/generator/mnt.mount"
          )
          machine.succeed(
              "grep 'After=systemd-fsck@dev-vdb.service' /run/systemd/generator/mnt.mount"
          )
    '';
}