LibTest/typed_data/ByteData/setUint16_A01_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 void setUint16(int byteOffset, int value, [Endianness endian = Endianness.BIG_ENDIAN])
 * Sets the two bytes starting at the specified [byteOffset] in this object
 * to the unsigned binary representation of the specified [value],
 * which must fit in two bytes. in other words, [value] must be between
 * 0 and 2<sup>16</sup> - 1, inclusive.
 * @description Checks that the value at the [offset] is set to [value].
 * @author msyabro
 */

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

main() {
  var u16 = new Uint16List(16);
  var valuesToBeSet = [123, 95, 25, 98, 0, 113, 20, 9, 65535, 1, 24, 25, 69, 52, 125, 31];
  var expectedBigEndian =
    [31488, 24320, 6400, 25088, 0, 28928, 5120, 2304, 65535, 256, 6144, 6400, 17664, 13312, 32000, 7936];

  var byteDataFromU16 = new ByteData.view(u16.buffer);
  for(int i = 0; i < byteDataFromU16.lengthInBytes / Int16List.BYTES_PER_ELEMENT; ++i) {
    byteDataFromU16.setUint16(i * Uint16List.BYTES_PER_ELEMENT, valuesToBeSet[i], Endianness.LITTLE_ENDIAN);
  }
  Expect.listEquals(valuesToBeSet, u16);

  for(int i = 0; i < byteDataFromU16.lengthInBytes / Int16List.BYTES_PER_ELEMENT; ++i) {
    byteDataFromU16.setUint16(i * Uint16List.BYTES_PER_ELEMENT, valuesToBeSet[i]);
  }
  Expect.listEquals(expectedBigEndian, u16);
}