mirror of
https://github.com/dart-lang/sdk
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35da19ac07
Change-Id: I0e97add738bc79314a210cf137525b7391467fc2 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/152595 Reviewed-by: Siva Annamalai <asiva@google.com> Commit-Queue: Bob Nystrom <rnystrom@google.com> Auto-Submit: Bob Nystrom <rnystrom@google.com>
338 lines
10 KiB
Dart
338 lines
10 KiB
Dart
// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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//
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// Dart test program for testing typed data.
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// Library tag to be able to run in html test framework.
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library ByteDataTest;
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import "package:expect/expect.dart";
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import 'dart:typed_data';
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testGetters() {
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bool host_is_little_endian =
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(new Uint8List.view(new Uint16List.fromList([1]).buffer))[0] == 1;
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var list = new Uint8List(8);
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list[0] = 0xf1;
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list[1] = 0xf2;
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list[2] = 0xf3;
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list[3] = 0xf4;
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list[4] = 0xf5;
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list[5] = 0xf6;
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list[6] = 0xf7;
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list[7] = 0xf8;
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var ba = list.buffer;
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ByteData bd = new ByteData.view(ba);
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var value;
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int expected_value_be = -3598;
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int expected_value_le = -3343;
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value = bd.getInt16(0); // Default is big endian access.
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Expect.equals(expected_value_be, value);
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value = bd.getInt16(0, Endian.big);
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Expect.equals(expected_value_be, value);
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value = bd.getInt16(0, Endian.little);
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Expect.equals(expected_value_le, value);
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value = bd.getInt16(0, Endian.host);
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if (host_is_little_endian) {
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Expect.isTrue(identical(Endian.host, Endian.little));
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Expect.equals(expected_value_le, value);
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} else {
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Expect.isTrue(identical(Endian.host, Endian.big));
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Expect.equals(expected_value_be, value);
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}
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value = bd.getUint16(0); // Default is big endian access.
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Expect.equals(0xf1f2, value);
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value = bd.getUint16(0, Endian.big);
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Expect.equals(0xf1f2, value);
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value = bd.getUint16(0, Endian.little);
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Expect.equals(0xf2f1, value);
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if (host_is_little_endian) {
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Expect.isTrue(identical(Endian.host, Endian.little));
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Expect.equals(0xf2f1, value);
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} else {
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Expect.isTrue(identical(Endian.host, Endian.big));
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Expect.equals(0xf1f2, value);
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}
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expected_value_be = -235736076;
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expected_value_le = -185339151;
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value = bd.getInt32(0); // Default is big endian access.
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Expect.equals(expected_value_be, value);
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value = bd.getInt32(0, Endian.big);
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Expect.equals(expected_value_be, value);
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value = bd.getInt32(0, Endian.little);
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Expect.equals(expected_value_le, value);
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if (host_is_little_endian) {
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Expect.isTrue(identical(Endian.host, Endian.little));
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Expect.equals(expected_value_le, value);
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} else {
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Expect.isTrue(identical(Endian.host, Endian.big));
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Expect.equals(expected_value_be, value);
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}
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value = bd.getUint32(0); // Default is big endian access.
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Expect.equals(0xf1f2f3f4, value);
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value = bd.getUint32(0, Endian.big);
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Expect.equals(0xf1f2f3f4, value);
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value = bd.getUint32(0, Endian.little);
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Expect.equals(0xf4f3f2f1, value);
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if (host_is_little_endian) {
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Expect.isTrue(identical(Endian.host, Endian.little));
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Expect.equals(0xf4f3f2f1, value);
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} else {
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Expect.isTrue(identical(Endian.host, Endian.big));
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Expect.equals(0xf1f2f3f4, value);
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}
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expected_value_be = -1012478732780767240;
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expected_value_le = -506664896818842895;
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value = bd.getInt64(0); // Default is big endian access.
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Expect.equals(expected_value_be, value);
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value = bd.getInt64(0, Endian.big);
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Expect.equals(expected_value_be, value);
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value = bd.getInt64(0, Endian.little);
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Expect.equals(expected_value_le, value);
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if (host_is_little_endian) {
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Expect.isTrue(identical(Endian.host, Endian.little));
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Expect.equals(expected_value_le, value);
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} else {
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Expect.isTrue(identical(Endian.host, Endian.big));
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Expect.equals(expected_value_be, value);
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}
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value = bd.getUint64(0); // Default is big endian access.
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Expect.equals(0xf1f2f3f4f5f6f7f8, value);
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value = bd.getUint64(0, Endian.big);
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Expect.equals(0xf1f2f3f4f5f6f7f8, value);
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value = bd.getUint64(0, Endian.little);
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Expect.equals(0xf8f7f6f5f4f3f2f1, value);
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if (host_is_little_endian) {
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Expect.isTrue(identical(Endian.host, Endian.little));
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Expect.equals(0xf8f7f6f5f4f3f2f1, value);
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} else {
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Expect.isTrue(identical(Endian.host, Endian.big));
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Expect.equals(0xf1f2f3f4f5f6f7f8, value);
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}
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double expected_be_value = -2.4060893954673178e+30;
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double expected_le_value = -1.5462104171572421e+32;
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value = bd.getFloat32(0); // Default is big endian access.
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Expect.equals(expected_be_value, value);
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value = bd.getFloat32(0, Endian.big);
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Expect.equals(expected_be_value, value);
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value = bd.getFloat32(0, Endian.little);
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Expect.equals(expected_le_value, value);
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if (host_is_little_endian) {
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Expect.isTrue(identical(Endian.host, Endian.little));
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Expect.equals(expected_le_value, value);
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} else {
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Expect.isTrue(identical(Endian.host, Endian.big));
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Expect.equals(expected_be_value, value);
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}
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expected_be_value = -7.898661740976602e+240;
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expected_le_value = -5.185705956736366e+274;
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value = bd.getFloat64(0); // Default is big endian access.
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Expect.equals(expected_be_value, value);
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value = bd.getFloat64(0, Endian.big);
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Expect.equals(expected_be_value, value);
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value = bd.getFloat64(0, Endian.little);
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Expect.equals(expected_le_value, value);
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if (host_is_little_endian) {
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Expect.isTrue(identical(Endian.host, Endian.little));
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Expect.equals(expected_le_value, value);
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} else {
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Expect.isTrue(identical(Endian.host, Endian.big));
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Expect.equals(expected_be_value, value);
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}
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}
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validate16be(var list) {
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Expect.equals(0xf1, list[0]);
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Expect.equals(0xf2, list[1]);
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}
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validate16le(var list) {
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Expect.equals(0xf2, list[0]);
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Expect.equals(0xf1, list[1]);
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}
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validate32be(var list) {
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Expect.equals(0xf1, list[0]);
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Expect.equals(0xf2, list[1]);
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Expect.equals(0xf3, list[2]);
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Expect.equals(0xf4, list[3]);
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}
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validate32le(var list) {
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Expect.equals(0xf4, list[0]);
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Expect.equals(0xf3, list[1]);
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Expect.equals(0xf2, list[2]);
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Expect.equals(0xf1, list[3]);
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}
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validate64be(var list) {
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Expect.equals(0xf1, list[0]);
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Expect.equals(0xf2, list[1]);
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Expect.equals(0xf3, list[2]);
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Expect.equals(0xf4, list[3]);
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Expect.equals(0xf5, list[4]);
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Expect.equals(0xf6, list[5]);
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Expect.equals(0xf7, list[6]);
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Expect.equals(0xf8, list[7]);
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}
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validate64le(var list) {
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Expect.equals(0xf8, list[0]);
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Expect.equals(0xf7, list[1]);
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Expect.equals(0xf6, list[2]);
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Expect.equals(0xf5, list[3]);
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Expect.equals(0xf4, list[4]);
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Expect.equals(0xf3, list[5]);
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Expect.equals(0xf2, list[6]);
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Expect.equals(0xf1, list[7]);
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}
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testSetters() {
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bool host_is_little_endian =
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(new Uint8List.view(new Uint16List.fromList([1]).buffer))[0] == 1;
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var list = new Uint8List(8);
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for (int i = 0; i < list.length; i++) {
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list[i] = 0;
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}
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var ba = list.buffer;
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ByteData bd = new ByteData.view(ba);
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bd.setInt16(0, 0xf1f2); // Default is big endian access.
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validate16be(list);
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bd.setInt16(0, 0xf1f2, Endian.big);
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validate16be(list);
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bd.setInt16(0, 0xf1f2, Endian.little);
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validate16le(list);
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bd.setInt16(0, 0xf1f2, Endian.host);
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if (host_is_little_endian) {
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Expect.isTrue(identical(Endian.host, Endian.little));
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validate16le(list);
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} else {
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Expect.isTrue(identical(Endian.host, Endian.big));
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validate16be(list);
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}
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bd.setUint16(0, 0xf1f2); // Default is big endian access.
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validate16be(list);
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bd.setUint16(0, 0xf1f2, Endian.big);
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validate16be(list);
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bd.setUint16(0, 0xf1f2, Endian.little);
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validate16le(list);
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bd.setUint16(0, 0xf1f2, Endian.host);
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if (host_is_little_endian) {
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Expect.isTrue(identical(Endian.host, Endian.little));
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validate16le(list);
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} else {
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Expect.isTrue(identical(Endian.host, Endian.big));
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validate16be(list);
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}
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bd.setInt32(0, 0xf1f2f3f4); // Default is big endian access.
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validate32be(list);
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bd.setInt32(0, 0xf1f2f3f4, Endian.big);
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validate32be(list);
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bd.setInt32(0, 0xf1f2f3f4, Endian.little);
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validate32le(list);
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bd.setInt32(0, 0xf1f2f3f4, Endian.host);
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if (host_is_little_endian) {
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Expect.isTrue(identical(Endian.host, Endian.little));
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validate32le(list);
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} else {
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Expect.isTrue(identical(Endian.host, Endian.big));
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validate32be(list);
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}
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bd.setUint32(0, 0xf1f2f3f4); // Default is big endian access.
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validate32be(list);
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bd.setUint32(0, 0xf1f2f3f4, Endian.big);
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validate32be(list);
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bd.setUint32(0, 0xf1f2f3f4, Endian.little);
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validate32le(list);
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bd.setUint32(0, 0xf1f2f3f4, Endian.host);
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if (host_is_little_endian) {
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Expect.isTrue(identical(Endian.host, Endian.little));
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validate32le(list);
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} else {
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Expect.isTrue(identical(Endian.host, Endian.big));
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validate32be(list);
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}
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bd.setInt64(0, 0xf1f2f3f4f5f6f7f8); // Default is big endian access.
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validate64be(list);
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bd.setInt64(0, 0xf1f2f3f4f5f6f7f8, Endian.big);
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validate64be(list);
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bd.setInt64(0, 0xf1f2f3f4f5f6f7f8, Endian.little);
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validate64le(list);
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bd.setInt64(0, 0xf1f2f3f4f5f6f7f8, Endian.host);
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if (host_is_little_endian) {
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Expect.isTrue(identical(Endian.host, Endian.little));
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validate64le(list);
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} else {
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Expect.isTrue(identical(Endian.host, Endian.big));
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validate64be(list);
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}
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bd.setUint64(0, 0xf1f2f3f4f5f6f7f8); // Default is big endian access.
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validate64be(list);
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bd.setUint64(0, 0xf1f2f3f4f5f6f7f8, Endian.big);
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validate64be(list);
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bd.setUint64(0, 0xf1f2f3f4f5f6f7f8, Endian.little);
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validate64le(list);
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bd.setUint64(0, 0xf1f2f3f4f5f6f7f8, Endian.host);
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if (host_is_little_endian) {
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Expect.isTrue(identical(Endian.host, Endian.little));
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validate64le(list);
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} else {
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Expect.isTrue(identical(Endian.host, Endian.big));
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validate64be(list);
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}
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bd.setFloat32(0, -2.4060893954673178e+30); // Default is big endian access.
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validate32be(list);
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bd.setFloat32(0, -2.4060893954673178e+30, Endian.big);
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validate32be(list);
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bd.setFloat32(0, -2.4060893954673178e+30, Endian.little);
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validate32le(list);
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bd.setFloat32(0, -2.4060893954673178e+30, Endian.host);
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if (host_is_little_endian) {
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Expect.isTrue(identical(Endian.host, Endian.little));
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validate32le(list);
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} else {
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Expect.isTrue(identical(Endian.host, Endian.big));
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validate32be(list);
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}
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bd.setFloat64(0, -7.898661740976602e+240); // Default is big endian access.
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validate64be(list);
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bd.setFloat64(0, -7.898661740976602e+240, Endian.big);
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validate64be(list);
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bd.setFloat64(0, -7.898661740976602e+240, Endian.little);
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validate64le(list);
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bd.setFloat64(0, -7.898661740976602e+240, Endian.host);
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if (host_is_little_endian) {
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Expect.isTrue(identical(Endian.host, Endian.little));
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validate64le(list);
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} else {
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Expect.isTrue(identical(Endian.host, Endian.big));
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validate64be(list);
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}
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}
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main() {
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testGetters();
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testSetters();
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}
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