tests/corelib_2/regexp/regress-regexp-construct-result_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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import 'v8_regexp_utils.dart';
import 'package:expect/expect.dart';

void main() {
  // Create a huge regexp with many alternative capture groups, most of
  // which do not capture anything, but the corresponding capture slot
  // in the result object has to exist, even though filled with null.
  // Having a large result array helps stressing GC.

  var num_captures = 1000;
  var regexp_string = "(a)";
  for (var i = 0; i < num_captures - 1; i++) {
    regexp_string += "|(b)";
  }
  var regexp = new RegExp(regexp_string);

  for (var i = 0; i < 10; i++) {
    var matches = regexp.firstMatch("a");
    var count = 0;
    assertEquals(num_captures + 1, matches.groupCount + 1);
  }
}