tests/language_2/string/overflow_test.dart

// Copyright (c) 2013, 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.

// @dart = 2.9

// Test to ensure that the VM does not have an integer overflow issue
// when concatenating strings.

import "package:expect/expect.dart";

main() {
  String a = "a";

  var exception_thrown = false;
  try {
    while (true) {
      a = "$a$a";
    }
  } on OutOfMemoryError catch (exc) {
    exception_thrown = true;
  }
  Expect.isTrue(exception_thrown);
  Expect.isTrue(a.startsWith('aaaaa') && a.length > 1024);
}