LibTest/convert/Utf8Decoder/convert_A02_t01.dart

// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

// @dart = 2.9

/// @assertion String convert(
///  List<int> codeUnits, [
///  int start = 0,
///  int end
///  ])
/// Converts the UTF-8 codeUnits (a list of unsigned 8-bit integers) to the
/// corresponding string.
///
/// Uses the code units from start to, but no including, end. If end is omitted,
/// it defaults to codeUnits.length.
///
/// If the codeUnits start with the encoding of a unicodeBomCharacterRune this
/// character is discarded.
/// @description Checks that if the [codeUnits] start with the encoding of a
/// [unicodeBomCharacterRune], that character is discarded
/// @issue 28834
/// @author sgrekhov@unipro.ru

import "dart:convert";
import "../../../Utils/expect.dart";

main() {
  Utf8Decoder decoder = new Utf8Decoder();
  for (int i = 0; i < 128; i++) {
    String s = new String.fromCharCode(i);
    List<int> toDecode = [];
    toDecode.addAll(utf8.encode(
        new String.fromCharCodes([unicodeBomCharacterRune])));
    toDecode.add(i);
    Expect.equals(s, decoder.convert(toDecode));
  }

  List<int> toDecode = [];
  toDecode.addAll(utf8.encode(
      new String.fromCharCodes([unicodeBomCharacterRune])));
  toDecode.addAll([208, 154, 208, 184, 209, 128, 208, 184, 208, 187, 208, 187,
    208, 184, 209, 134, 208, 176, 32
  ]);
  Expect.equals("Кириллица ", decoder.convert(toDecode));
}