{ pkgs, lib }:

pkgs.runCommandNoCC "devos-lib-tests"
{
  buildInputs = [
    pkgs.nix
    (
      let tests = import ./lib.nix { inherit pkgs lib; }; in
      if tests == [ ] then null
      else throw (builtins.toJSON tests)
    )
  ];
} ''
  datadir="${pkgs.nix}/share"
  export TEST_ROOT=$(pwd)/test-tmp
  export NIX_BUILD_HOOK=
  export NIX_CONF_DIR=$TEST_ROOT/etc
  export NIX_LOCALSTATE_DIR=$TEST_ROOT/var
  export NIX_LOG_DIR=$TEST_ROOT/var/log/nix
  export NIX_STATE_DIR=$TEST_ROOT/var/nix
  export NIX_STORE_DIR=$TEST_ROOT/store
  export PAGER=cat
  cacheDir=$TEST_ROOT/binary-cache
  nix-store --init

  touch $out
''