LibTest/convert/AsciiCodec/fuse_A01_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 Codec<S, R> fuse<R>(Codec<T, R> other)
/// Fuses this with other.
///
/// When encoding, the resulting codec encodes with this before encoding with
/// other.
///
/// When decoding, the resulting codec decodes with other before decoding with
/// this.
/// @description Checks that encoding with the resulting converter is equivalent
/// to converting with this before converting with other.
/// @author sgrekhov@unipro.ru

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

check(Codec codec, String toEncode) {
  Expect.equals(toEncode, codec.decode(toEncode));
  Expect.equals(toEncode, codec.encode(toEncode));
}

main() {
  AsciiCodec codec = new AsciiCodec();
  Codec inverted = codec.inverted;
  Codec fused = codec.fuse(inverted);

  check(fused, r"Some string 123 !@#$%^&*()_+|");
  check(fused, "");
  Expect.throws(() {check(fused, "Non-ASCII: Кириллица");});
}