LibTest/typed_data/Float32x4List/sublist_A01_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 List<E> sublist(int start, [int end])
/// Returns a new list containing the elements from [start] inclusive to [end]
/// exclusive.
/// @description Checks that the returned list contains all elements of [this]
/// from [start] to [end].
/// @author msyabro


import "dart:typed_data";
import "../../../Utils/expect.dart";

Float32x4 pack(v) => new Float32x4.splat(v);

equal(obj1, obj2) {
  var res = obj1.equal(obj2);
  return res.flagX && res.flagY && res.flagZ && res.flagW;
}

void check(List<Float32x4> list, int start, int end) {
  var l = new Float32x4List.fromList(list);
  var res = l.sublist(start, end);

  for (int i = start; i < end; ++i) {
    Expect.isTrue(equal(l[i], res[i - start]));
  }
}

main() {
  check([], 0, 0);
  check([pack(1.0)], 0, 1);
  check([
    pack(0.0), pack(1.0), pack(2.0), pack(3.0), pack(4.0), pack(5.0),
    pack(6.0), pack(7.0), pack(8.0), pack(9.0)
  ], 0, 10);
  check([
    pack(0.0), pack(1.0), pack(2.0), pack(3.0), pack(4.0), pack(5.0),
    pack(6.0), pack(7.0), pack(8.0), pack(9.0)
  ], 0, 0);
  check([
    pack(0.0), pack(1.0), pack(2.0), pack(3.0), pack(4.0), pack(5.0),
    pack(6.0), pack(7.0), pack(8.0), pack(9.0)
  ], 0, 1);
  check([
    pack(0.0), pack(1.0), pack(2.0), pack(3.0), pack(4.0), pack(5.0),
    pack(6.0), pack(7.0), pack(8.0), pack(9.0)
  ], 9, 10);
  check([
    pack(0.0), pack(1.0), pack(2.0), pack(3.0), pack(4.0), pack(5.0),
    pack(6.0), pack(7.0), pack(8.0), pack(9.0)
  ], 4, 7);
}