lib.types: add module tests for `fileset`

checkConfigError 'A definition for option .* is not of type .path in the Nix store.. Definition values:\n\s*- In .*: ".*/store/.links"' config.pathInStore.bad4 ./types.nix

checkConfigError 'A definition for option .* is not of type .path in the Nix store.. Definition values:\n\s*- In .*: "/foo/bar"' config.pathInStore.bad5 ./types.nix

# types.fileset

checkConfigOutput '^0$' config.filesetCardinal.ok1 ./fileset.nix

checkConfigOutput '^1$' config.filesetCardinal.ok2 ./fileset.nix

checkConfigOutput '^1$' config.filesetCardinal.ok3 ./fileset.nix

checkConfigOutput '^1$' config.filesetCardinal.ok4 ./fileset.nix

checkConfigOutput '^0$' config.filesetCardinal.ok5 ./fileset.nix

checkConfigError 'A definition for option .* is not of type .fileset.. Definition values:\n.*' config.filesetCardinal.err1 ./fileset.nix

checkConfigError 'A definition for option .* is not of type .fileset.. Definition values:\n.*' config.filesetCardinal.err2 ./fileset.nix

checkConfigError 'A definition for option .* is not of type .fileset.. Definition values:\n.*' config.filesetCardinal.err3 ./fileset.nix

checkConfigError 'A definition for option .* is not of type .fileset.. Definition values:\n.*' config.filesetCardinal.err4 ./fileset.nix

# Check boolean option.

checkConfigOutput '^false$' config.enable ./declare-enable.nix

checkConfigError 'The option .* does not exist. Definition values:\n\s*- In .*: true' config.enable ./define-enable.nix

{ config, lib, ... }:

let

  inherit (lib)

    mkOption

    mkIf

    types

    mapAttrs

    length

    ;

  inherit (lib.fileset)

    empty

    unions

    toList

    ;

in

{

  options = {

    fileset = mkOption { type = with types; lazyAttrsOf fileset; };

    ## The following option is only here as a proxy to test `fileset` that does

    ## not work so well with `modules.sh` because it is not JSONable. It exposes

    ## the number of elements in the fileset.

    filesetCardinal = mkOption { default = mapAttrs (_: fs: length (toList fs)) config.fileset; };

  };

  config = {

    fileset.ok1 = empty;

    fileset.ok2 = ./fileset;

    fileset.ok3 = unions [

      empty

      ./fileset

    ];

    # fileset.ok4: see imports below

    fileset.ok5 = mkIf false ./fileset;

    fileset.err1 = 1;

    fileset.err2 = "foo";

    fileset.err3 = "./.";

    fileset.err4 = [ empty ];

  };

  imports = [

    { fileset.ok4 = ./fileset; }

    { fileset.ok4 = empty; }

    { fileset.ok4 = ./fileset; }

  ];

}

Do not remove. This file is used by the tests in `../fileset.nix`.