| // 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, [ |
| /// Endian endian = Endian.big |
| /// ]) |
| /// 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 pow(2, 16) - 1, inclusive. |
| /// @description Checks that the value at the [byteOffset] 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 |
| ]; |
| int bytesInElement = Int16List.bytesPerElement; |
| |
| var byteDataFromU16 = new ByteData.view(u16.buffer); |
| for (int i = 0; i < byteDataFromU16.lengthInBytes / bytesInElement; ++i) { |
| byteDataFromU16.setUint16(i * bytesInElement, valuesToBeSet[i], |
| Endian.little); |
| } |
| Expect.listEquals(valuesToBeSet, u16); |
| |
| for (int i = 0; i < byteDataFromU16.lengthInBytes / bytesInElement; ++i) { |
| byteDataFromU16.setUint16(i * bytesInElement, valuesToBeSet[i]); |
| } |
| Expect.listEquals(expectedBigEndian, u16); |
| } |