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<int> sublist(int start, [int end])
 * Returns a new list containing the elements from [start] to [end].
 * @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";

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(var list, var start, var 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);
}