LibTest/typed_data/ByteData/ByteData.view_A04_t01.dart

/*
 * 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 ByteData.view(ByteBuffer buffer, [int byteOffset = 0, int length])
 * If the [offsetInBytes] index of the region is not
 * specified, it defaults to zero (the first byte in the byte buffer).
 * @description Checks that if the [offsetInBytes] is not specified,
 * it defaults to zero.
 * @author msyabro
 */
import "dart:typed_data";
import "../../../Utils/expect.dart";

void check(array, length, firstElement, lastElement) {
  var tmp = new Int8List.fromList(array);
  var byteBuffer = tmp.buffer;
  var l = new ByteData.view(byteBuffer);
  Expect.equals(length, l.length);
  Expect.equals(firstElement, l.getInt8(0));
  Expect.equals(lastElement, l.getInt8(length - 1));
}

main() {
  check([0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17], 18, 0, 17);
  check([0], 1, 0, 0);
  check([100, 50], 2, 100, 50);
}