String mutate()

in tool/fuzz_driver.dart [346:385]

• 39 lines of code
• 3 McCabe index (conditional complexity)

String mutate(String src) {
  final chars = [
    '{',
    '}',
    '[',
    ']',
    "'",
    ',',
    '!',
    '@',
    '#',
    '\$',
    '%',
    '^',
    '&',
    ' ',
    '(',
    ')',
    'null ',
    'class ',
    'for ',
    'void ',
    'var ',
    'dynamic ',
    ';',
    'as ',
    'is ',
    '.',
    'import '
  ];
  final s = chars[random.nextInt(chars.length)];
  var i = random.nextInt(src.length);
  if (i == 0) i = 1;

  if (dumpDelta) {
    log('Delta: $s');
  }
  final newStr = src.substring(0, i - 1) + s + src.substring(i);
  return newStr;
}