LibTest/typed_data/ByteData/ByteData.view_A03_t01.dart

// Copyright (c) 2013, 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
 * ByteData.view(
 *     ByteBuffer buffer, [
 *     int offsetInBytes = 0, int length
 * ])
 * ...
 * If the length is not specified, it defaults to null, which indicates that the
 * view extends to the end of the byte buffer.
 * @description Checks that if the [length] is not specified, the view extends
 * to the end of the byte buffer.
 * @author msyabro
 */

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

void check(List<int> array, int offset, int numberOfElements, int lastElement) {
  var tmp = new Int8List.fromList(array);
  var byteBuffer = tmp.buffer;
  var l = new ByteData.view(byteBuffer, offset);
  Expect.equals(numberOfElements, l.lengthInBytes);
  Expect.equals(lastElement, l.getInt8(numberOfElements - 1));
}

main() {
  check([0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17],
      0, 18, 17);
  check([0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17],
      1, 17, 17);
  check([0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17],
      17, 1, 17);
}