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// 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(
      'Test that covers capturing brackets, and was adapted from a part of an early version of Acid3.');

  // JS regexps aren't like Perl regexps, if their character
  // classes start with a ] that means they're empty. So this
  // is a syntax error; if we get here it's a bug.
  assertThrows(() => new RegExp(r"TA[])]").firstMatch('TA]'));
  shouldBeNull(new RegExp(r"[]").firstMatch(''));
  shouldBe(new RegExp(r"(\3)(\1)(a)").firstMatch('cat'), ['a', '', '', 'a']);
}