blob: 1fdacd2c1f81f68135e86e9bca4ab50c357993e2 [file] [log] [blame]
// 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.
import 'dart:typed_data';
import "package:expect/expect.dart";
main() {
swapTest();
swapTestVar(Endianness.LITTLE_ENDIAN, Endianness.BIG_ENDIAN);
swapTestVar(Endianness.BIG_ENDIAN, Endianness.LITTLE_ENDIAN);
}
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, Endianness.BIG_ENDIAN);
data.setInt32(i, e, Endianness.LITTLE_ENDIAN);
}
Expect.equals(0x02000000, data.getInt32(8));
for (int i = 0; i < data.lengthInBytes; i += 2) {
var e = data.getInt16(i, Endianness.BIG_ENDIAN);
data.setInt16(i, e, Endianness.LITTLE_ENDIAN);
}
Expect.equals(0x00020000, data.getInt32(8));
for (int i = 0; i < data.lengthInBytes; i += 4) {
var e = data.getUint32(i, Endianness.LITTLE_ENDIAN);
data.setUint32(i, e, Endianness.BIG_ENDIAN);
}
Expect.equals(0x00000200, data.getInt32(8));
for (int i = 0; i < data.lengthInBytes; i += 2) {
var e = data.getUint16(i, Endianness.LITTLE_ENDIAN);
data.setUint16(i, e, Endianness.BIG_ENDIAN);
}
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));
}