with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/config.nix";

rec {

  dep = import ./dependencies.nix {};

  makeTest = nr: args: mkDerivation ({
    name = "check-refs-" + toString nr;
  } // args);

  src = builtins.toFile "aux-ref" "bla bla";

  test1 = makeTest 1 {
    builder = builtins.toFile "builder.sh" "mkdir $out; ln -s $dep $out/link";
    inherit dep;
  };

  test2 = makeTest 2 {
    builder = builtins.toFile "builder.sh" "mkdir $out; ln -s ${src} $out/link";
    inherit dep;
  };

  test3 = makeTest 3 {
    builder = builtins.toFile "builder.sh" "mkdir $out; ln -s $dep $out/link";
    allowedReferences = [];
    inherit dep;
  };

  test4 = makeTest 4 {
    builder = builtins.toFile "builder.sh" "mkdir $out; ln -s $dep $out/link";
    allowedReferences = [dep];
    inherit dep;
  };

  test5 = makeTest 5 {
    builder = builtins.toFile "builder.sh" "mkdir $out";
    allowedReferences = [];
    inherit dep;
  };

  test6 = makeTest 6 {
    builder = builtins.toFile "builder.sh" "mkdir $out; ln -s $out $out/link";
    allowedReferences = [];
    inherit dep;
  };

  test7 = makeTest 7 {
    builder = builtins.toFile "builder.sh" "mkdir $out; ln -s $out $out/link";
    allowedReferences = ["out"];
    inherit dep;
  };

  test8 = makeTest 8 {
    builder = builtins.toFile "builder.sh" "mkdir $out; ln -s ${test1} $out/link";
    inherit dep;
  };

  test9 = makeTest 9 {
    builder = builtins.toFile "builder.sh" "mkdir $out; ln -s $dep $out/link";
    inherit dep;
    disallowedReferences = [dep];
  };

  test10 = makeTest 10 {
    builder = builtins.toFile "builder.sh" "mkdir $out; echo $test5; ln -s $dep $out/link";
    inherit dep test5;
    disallowedReferences = [test5];
  };

  test11 = makeTest 11 {
    __structuredAttrs = true;
    unsafeDiscardReferences.out = true;
    outputChecks.out.allowedReferences = [];
    buildCommand = ''echo ${dep} > "''${outputs[out]}"'';
  };

}