LibTest/core/Uri/Uri.dataFromString_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.

/**
 * @assertion Uri.dataFromString(
 *  String content, {
 *  String mimeType,
 *  Encoding encoding,
 *  Map<String, String> parameters,
 *  bool base64: false
 *  })
 * Creates a data: URI containing the content string.
 * ...
 * If encoding is not provided and parameters has a charset entry, that name is
 * looked up using Encoding.getByName, and if the lookup returns an encoding,
 * that encoding is used to convert content to bytes. If providing both an
 * encoding and a charset parameter, they should agree, otherwise decoding
 * won't be able to use the charset parameter to determine the encoding.
 * ...
 * @description Checks that if encoding is not provided and parameters has a
 * charset entry, that name is looked up using Encoding.getByName, and if the
 * lookup returns an encoding, that encoding is used to convert content to bytes
 * @author sgrekhov@unipro.ru
 */
import "dart:convert";
import "../../../Utils/expect.dart";
import "UriDataEncoder.lib.dart";

check(String content, Map<String, String> parameters) {
  Uri uri = new Uri.dataFromString(content, parameters: parameters);

  Expect.equals(encodeString(content, encoding:
    Encoding.getByName(parameters["charset"])), uri.data?.contentText);
  Expect.equals("text/plain", uri.data?.mimeType);
  Expect.mapEquals(parameters, uri.data?.parameters);
  Expect.equals("data:;charset=" + parameters["charset"].toString() + "," +
      encodeString(content, encoding: Encoding.getByName(parameters["charset"])),
      uri.data.toString());

  Expect.equals("data", uri.scheme);
  Expect.equals("", uri.userInfo);
  Expect.equals("", uri.host);
  Expect.equals(0, uri.port);
  Expect.equals("", uri.fragment);
}

main() {
  check("Some data", {"charset": "utf-8"});
  check("", {"charset": "utf-8"});
  check(reserved, {"charset": "utf-8"});
  check(unreserved, {"charset": "utf-8"});
  check("Non-ASCII: Кириллица прекрасна!", {"charset": "utf-8"});
}