// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
// VMOptions=--disable-exit

// @dart = 2.9

import "dart:io" as io;

import "package:expect/expect.dart";

void main() {
  Expect.throws(() {
    io.exit(-1);
  }, (e) => (e is UnsupportedError));
}