tests/corelib_2/regexp/overflow_test.dart

// Copyright (c) 2014, the Dart project authors. All rights reserved.
// Copyright 2013 the V8 project authors. All rights reserved.
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// @dart = 2.9

import 'v8_regexp_utils.dart';
import 'package:expect/expect.dart';

void main() {
  description(
      "This test checks expressions with alternative lengths of appox. 2^31.");

  var regexp1 = new RegExp(r"(?:(?=g))|(?:m).{2147483648,}");
  shouldBeNull(regexp1.firstMatch(''));

  var regexp2 = new RegExp(r"(?:(?=g)).{2147483648,}");
  shouldBeNull(regexp2.firstMatch(''));

  var s3 =
      r"&{6}u4a64YfQP{C}u88c4u5772Qu8693{4294967167}u85f2u7f3fs((uf202){4})u5bc6u1947";
  var regexp3 = new RegExp(s3);
  shouldBeNull(regexp3.firstMatch(s3));

  var regexp4 = new RegExp(r"[^a$]{4294967295}");
  shouldBeNull(regexp4.firstMatch(s3));
}