depot/third_party/home-manager/tests/modules/files/hidden-source.nix

{ ... }:

{
  home.file.".hidden".source = ./.hidden;

  nmt.script = ''
    assertFileExists home-files/.hidden;
    assertFileContent home-files/.hidden ${
      builtins.path {
        path = ./.hidden;
        name = "expected";
      }
    }
  '';
}