| // Copyright (c) 2014, 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. |
| |
| // @dart = 2.9 |
| |
| import 'dart:typed_data'; |
| import "package:expect/expect.dart"; |
| |
| main() { |
| swapTest(); |
| swapTestVar(Endian.little, Endian.big); |
| swapTestVar(Endian.big, Endian.little); |
| } |
| |
| swapTest() { |
| ByteData data = new ByteData(16); |
| Expect.equals(16, data.lengthInBytes); |
| for (int i = 0; i < 4; i++) { |
| data.setInt32(i * 4, i); |
| } |
| |
| for (int i = 0; i < data.lengthInBytes; i += 4) { |
| var e = data.getInt32(i, Endian.big); |
| data.setInt32(i, e, Endian.little); |
| } |
| |
| Expect.equals(0x02000000, data.getInt32(8)); |
| |
| for (int i = 0; i < data.lengthInBytes; i += 2) { |
| var e = data.getInt16(i, Endian.big); |
| data.setInt16(i, e, Endian.little); |
| } |
| |
| Expect.equals(0x00020000, data.getInt32(8)); |
| |
| for (int i = 0; i < data.lengthInBytes; i += 4) { |
| var e = data.getUint32(i, Endian.little); |
| data.setUint32(i, e, Endian.big); |
| } |
| |
| Expect.equals(0x00000200, data.getInt32(8)); |
| |
| for (int i = 0; i < data.lengthInBytes; i += 2) { |
| var e = data.getUint16(i, Endian.little); |
| data.setUint16(i, e, Endian.big); |
| } |
| |
| Expect.equals(0x00000002, data.getInt32(8)); |
| } |
| |
| swapTestVar(read, write) { |
| ByteData data = new ByteData(16); |
| Expect.equals(16, data.lengthInBytes); |
| for (int i = 0; i < 4; i++) { |
| data.setInt32(i * 4, i); |
| } |
| |
| for (int i = 0; i < data.lengthInBytes; i += 4) { |
| var e = data.getInt32(i, read); |
| data.setInt32(i, e, write); |
| } |
| |
| Expect.equals(0x02000000, data.getInt32(8)); |
| |
| for (int i = 0; i < data.lengthInBytes; i += 2) { |
| var e = data.getInt16(i, read); |
| data.setInt16(i, e, write); |
| } |
| |
| Expect.equals(0x00020000, data.getInt32(8)); |
| |
| for (int i = 0; i < data.lengthInBytes; i += 4) { |
| var e = data.getUint32(i, read); |
| data.setUint32(i, e, write); |
| } |
| |
| Expect.equals(0x00000200, data.getInt32(8)); |
| |
| for (int i = 0; i < data.lengthInBytes; i += 2) { |
| var e = data.getUint16(i, read); |
| data.setUint16(i, e, write); |
| } |
| |
| Expect.equals(0x00000002, data.getInt32(8)); |
| } |