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// 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.
//
// Dart test program for testing typed data.
// Library tag to be able to run in html test framework.
library ByteDataTest;
import "package:expect/expect.dart";
import 'dart:typed_data';
testGetters() {
bool host_is_little_endian =
(new Uint8List.view(new Uint16List.fromList([1]).buffer))[0] == 1;
var list = new Uint8List(8);
list[0] = 0xf1;
list[1] = 0xf2;
list[2] = 0xf3;
list[3] = 0xf4;
list[4] = 0xf5;
list[5] = 0xf6;
list[6] = 0xf7;
list[7] = 0xf8;
var ba = list.buffer;
ByteData bd = new ByteData.view(ba);
var value;
int expected_value_be = -3598;
int expected_value_le = -3343;
value = bd.getInt16(0); // Default is big endian access.
Expect.equals(expected_value_be, value);
value = bd.getInt16(0, Endian.big);
Expect.equals(expected_value_be, value);
value = bd.getInt16(0, Endian.little);
Expect.equals(expected_value_le, value);
value = bd.getInt16(0, Endian.host);
if (host_is_little_endian) {
Expect.isTrue(identical(Endian.host, Endian.little));
Expect.equals(expected_value_le, value);
} else {
Expect.isTrue(identical(Endian.host, Endian.big));
Expect.equals(expected_value_be, value);
}
value = bd.getUint16(0); // Default is big endian access.
Expect.equals(0xf1f2, value);
value = bd.getUint16(0, Endian.big);
Expect.equals(0xf1f2, value);
value = bd.getUint16(0, Endian.little);
Expect.equals(0xf2f1, value);
if (host_is_little_endian) {
Expect.isTrue(identical(Endian.host, Endian.little));
Expect.equals(0xf2f1, value);
} else {
Expect.isTrue(identical(Endian.host, Endian.big));
Expect.equals(0xf1f2, value);
}
expected_value_be = -235736076;
expected_value_le = -185339151;
value = bd.getInt32(0); // Default is big endian access.
Expect.equals(expected_value_be, value);
value = bd.getInt32(0, Endian.big);
Expect.equals(expected_value_be, value);
value = bd.getInt32(0, Endian.little);
Expect.equals(expected_value_le, value);
if (host_is_little_endian) {
Expect.isTrue(identical(Endian.host, Endian.little));
Expect.equals(expected_value_le, value);
} else {
Expect.isTrue(identical(Endian.host, Endian.big));
Expect.equals(expected_value_be, value);
}
value = bd.getUint32(0); // Default is big endian access.
Expect.equals(0xf1f2f3f4, value);
value = bd.getUint32(0, Endian.big);
Expect.equals(0xf1f2f3f4, value);
value = bd.getUint32(0, Endian.little);
Expect.equals(0xf4f3f2f1, value);
if (host_is_little_endian) {
Expect.isTrue(identical(Endian.host, Endian.little));
Expect.equals(0xf4f3f2f1, value);
} else {
Expect.isTrue(identical(Endian.host, Endian.big));
Expect.equals(0xf1f2f3f4, value);
}
expected_value_be = -1012478732780767240;
expected_value_le = -506664896818842895;
value = bd.getInt64(0); // Default is big endian access.
Expect.equals(expected_value_be, value);
value = bd.getInt64(0, Endian.big);
Expect.equals(expected_value_be, value);
value = bd.getInt64(0, Endian.little);
Expect.equals(expected_value_le, value);
if (host_is_little_endian) {
Expect.isTrue(identical(Endian.host, Endian.little));
Expect.equals(expected_value_le, value);
} else {
Expect.isTrue(identical(Endian.host, Endian.big));
Expect.equals(expected_value_be, value);
}
value = bd.getUint64(0); // Default is big endian access.
Expect.equals(0xf1f2f3f4f5f6f7f8, value);
value = bd.getUint64(0, Endian.big);
Expect.equals(0xf1f2f3f4f5f6f7f8, value);
value = bd.getUint64(0, Endian.little);
Expect.equals(0xf8f7f6f5f4f3f2f1, value);
if (host_is_little_endian) {
Expect.isTrue(identical(Endian.host, Endian.little));
Expect.equals(0xf8f7f6f5f4f3f2f1, value);
} else {
Expect.isTrue(identical(Endian.host, Endian.big));
Expect.equals(0xf1f2f3f4f5f6f7f8, value);
}
double expected_be_value = -2.4060893954673178e+30;
double expected_le_value = -1.5462104171572421e+32;
value = bd.getFloat32(0); // Default is big endian access.
Expect.equals(expected_be_value, value);
value = bd.getFloat32(0, Endian.big);
Expect.equals(expected_be_value, value);
value = bd.getFloat32(0, Endian.little);
Expect.equals(expected_le_value, value);
if (host_is_little_endian) {
Expect.isTrue(identical(Endian.host, Endian.little));
Expect.equals(expected_le_value, value);
} else {
Expect.isTrue(identical(Endian.host, Endian.big));
Expect.equals(expected_be_value, value);
}
expected_be_value = -7.898661740976602e+240;
expected_le_value = -5.185705956736366e+274;
value = bd.getFloat64(0); // Default is big endian access.
Expect.equals(expected_be_value, value);
value = bd.getFloat64(0, Endian.big);
Expect.equals(expected_be_value, value);
value = bd.getFloat64(0, Endian.little);
Expect.equals(expected_le_value, value);
if (host_is_little_endian) {
Expect.isTrue(identical(Endian.host, Endian.little));
Expect.equals(expected_le_value, value);
} else {
Expect.isTrue(identical(Endian.host, Endian.big));
Expect.equals(expected_be_value, value);
}
}
validate16be(var list) {
Expect.equals(0xf1, list[0]);
Expect.equals(0xf2, list[1]);
}
validate16le(var list) {
Expect.equals(0xf2, list[0]);
Expect.equals(0xf1, list[1]);
}
validate32be(var list) {
Expect.equals(0xf1, list[0]);
Expect.equals(0xf2, list[1]);
Expect.equals(0xf3, list[2]);
Expect.equals(0xf4, list[3]);
}
validate32le(var list) {
Expect.equals(0xf4, list[0]);
Expect.equals(0xf3, list[1]);
Expect.equals(0xf2, list[2]);
Expect.equals(0xf1, list[3]);
}
validate64be(var list) {
Expect.equals(0xf1, list[0]);
Expect.equals(0xf2, list[1]);
Expect.equals(0xf3, list[2]);
Expect.equals(0xf4, list[3]);
Expect.equals(0xf5, list[4]);
Expect.equals(0xf6, list[5]);
Expect.equals(0xf7, list[6]);
Expect.equals(0xf8, list[7]);
}
validate64le(var list) {
Expect.equals(0xf8, list[0]);
Expect.equals(0xf7, list[1]);
Expect.equals(0xf6, list[2]);
Expect.equals(0xf5, list[3]);
Expect.equals(0xf4, list[4]);
Expect.equals(0xf3, list[5]);
Expect.equals(0xf2, list[6]);
Expect.equals(0xf1, list[7]);
}
testSetters() {
bool host_is_little_endian =
(new Uint8List.view(new Uint16List.fromList([1]).buffer))[0] == 1;
var list = new Uint8List(8);
for (int i = 0; i < list.length; i++) {
list[i] = 0;
}
var ba = list.buffer;
ByteData bd = new ByteData.view(ba);
bd.setInt16(0, 0xf1f2); // Default is big endian access.
validate16be(list);
bd.setInt16(0, 0xf1f2, Endian.big);
validate16be(list);
bd.setInt16(0, 0xf1f2, Endian.little);
validate16le(list);
bd.setInt16(0, 0xf1f2, Endian.host);
if (host_is_little_endian) {
Expect.isTrue(identical(Endian.host, Endian.little));
validate16le(list);
} else {
Expect.isTrue(identical(Endian.host, Endian.big));
validate16be(list);
}
bd.setUint16(0, 0xf1f2); // Default is big endian access.
validate16be(list);
bd.setUint16(0, 0xf1f2, Endian.big);
validate16be(list);
bd.setUint16(0, 0xf1f2, Endian.little);
validate16le(list);
bd.setUint16(0, 0xf1f2, Endian.host);
if (host_is_little_endian) {
Expect.isTrue(identical(Endian.host, Endian.little));
validate16le(list);
} else {
Expect.isTrue(identical(Endian.host, Endian.big));
validate16be(list);
}
bd.setInt32(0, 0xf1f2f3f4); // Default is big endian access.
validate32be(list);
bd.setInt32(0, 0xf1f2f3f4, Endian.big);
validate32be(list);
bd.setInt32(0, 0xf1f2f3f4, Endian.little);
validate32le(list);
bd.setInt32(0, 0xf1f2f3f4, Endian.host);
if (host_is_little_endian) {
Expect.isTrue(identical(Endian.host, Endian.little));
validate32le(list);
} else {
Expect.isTrue(identical(Endian.host, Endian.big));
validate32be(list);
}
bd.setUint32(0, 0xf1f2f3f4); // Default is big endian access.
validate32be(list);
bd.setUint32(0, 0xf1f2f3f4, Endian.big);
validate32be(list);
bd.setUint32(0, 0xf1f2f3f4, Endian.little);
validate32le(list);
bd.setUint32(0, 0xf1f2f3f4, Endian.host);
if (host_is_little_endian) {
Expect.isTrue(identical(Endian.host, Endian.little));
validate32le(list);
} else {
Expect.isTrue(identical(Endian.host, Endian.big));
validate32be(list);
}
bd.setInt64(0, 0xf1f2f3f4f5f6f7f8); // Default is big endian access.
validate64be(list);
bd.setInt64(0, 0xf1f2f3f4f5f6f7f8, Endian.big);
validate64be(list);
bd.setInt64(0, 0xf1f2f3f4f5f6f7f8, Endian.little);
validate64le(list);
bd.setInt64(0, 0xf1f2f3f4f5f6f7f8, Endian.host);
if (host_is_little_endian) {
Expect.isTrue(identical(Endian.host, Endian.little));
validate64le(list);
} else {
Expect.isTrue(identical(Endian.host, Endian.big));
validate64be(list);
}
bd.setUint64(0, 0xf1f2f3f4f5f6f7f8); // Default is big endian access.
validate64be(list);
bd.setUint64(0, 0xf1f2f3f4f5f6f7f8, Endian.big);
validate64be(list);
bd.setUint64(0, 0xf1f2f3f4f5f6f7f8, Endian.little);
validate64le(list);
bd.setUint64(0, 0xf1f2f3f4f5f6f7f8, Endian.host);
if (host_is_little_endian) {
Expect.isTrue(identical(Endian.host, Endian.little));
validate64le(list);
} else {
Expect.isTrue(identical(Endian.host, Endian.big));
validate64be(list);
}
bd.setFloat32(0, -2.4060893954673178e+30); // Default is big endian access.
validate32be(list);
bd.setFloat32(0, -2.4060893954673178e+30, Endian.big);
validate32be(list);
bd.setFloat32(0, -2.4060893954673178e+30, Endian.little);
validate32le(list);
bd.setFloat32(0, -2.4060893954673178e+30, Endian.host);
if (host_is_little_endian) {
Expect.isTrue(identical(Endian.host, Endian.little));
validate32le(list);
} else {
Expect.isTrue(identical(Endian.host, Endian.big));
validate32be(list);
}
bd.setFloat64(0, -7.898661740976602e+240); // Default is big endian access.
validate64be(list);
bd.setFloat64(0, -7.898661740976602e+240, Endian.big);
validate64be(list);
bd.setFloat64(0, -7.898661740976602e+240, Endian.little);
validate64le(list);
bd.setFloat64(0, -7.898661740976602e+240, Endian.host);
if (host_is_little_endian) {
Expect.isTrue(identical(Endian.host, Endian.little));
validate64le(list);
} else {
Expect.isTrue(identical(Endian.host, Endian.big));
validate64be(list);
}
}
main() {
testGetters();
testSetters();
}