// 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.

/// @assertion String contentAsString({Encoding encoding})
/// Returns a string created from the content of the data URI.
///
/// If the content is Base64 encoded, it will be decoded to bytes and then
/// decoded to a string using encoding. If encoding is omitted, the value of a
/// charset parameter is used if it is recognized by Encoding.getByName,
/// otherwise it defaults to the ASCII encoding, which is the default encoding
/// for data URIs that do not specify an encoding.
///
/// If the content is not Base64 encoded, it will first have percent-escapes
/// converted to bytes and then the character codes and byte values are decoded
/// using encoding
/// @description Checks that this method returns a string created from the
/// content of the data URI. Test Base64 encoded content
/// @author sgrekhov@unipro.ru

import "dart:convert";
import "../../../Utils/expect.dart";
import "../Uri/UriDataEncoder.lib.dart";

check(String content, [Encoding? encoding]) {
  UriData uriData = new UriData.fromString(content, encoding: encoding,
      base64: true);
  String expected = content;
  Expect.equals(expected, uriData.contentAsString(encoding: encoding));
  Expect.equals(expected, uriData.contentAsString());

  if (encoding != null) {
    uriData = new UriData.fromString(content,
        parameters: {"charset": encoding.name });
    expected = content;
    Expect.equals(expected, uriData.contentAsString(encoding: encoding));
    Expect.equals(expected, uriData.contentAsString());
  }
}

main() {
  check("Some data");
  check("Non-ASCII: Кириллица прекрасна", Encoding.getByName("utf-8"));
}