chromium/third_party/blink/web_tests/harness-tests/special-characters.html

<!DOCTYPE html>
<title>Harness Test: Special characters in test results shouldn't break harness and tools.</title>
<script src="../resources/testharness.js"></script>
<script src="../resources/testharnessreport.js"></script>
<script>

var special_characters = ['\\', '\r\n'];
for (var i = 0; i < 32; i++) {
  special_characters.push(String.fromCharCode(i));
}

special_characters.forEach(function(c) {
  test(function() {
    assert_true(true);
  }, 'Unescaped ' + c + ' in test name.');

  test(function() {
    assert_true(true);
  }, 'Escaped ' + format_value(c) + ' in test name.');

  test(function() {
    throw new Error('Expected Error: ' + c + ' character.');
  }, 'Unescaped ' + format_value(c) + ' in test message.');

  test(function() {
    throw new Error('Expected Error: ' + format_value(c) + ' character.');
  }, 'Escaped ' + format_value(c) + ' in test message.');
});

</script>