LibTest/typed_data/Float64x2List/setRange_A01_t01.dart

// Copyright (c) 2017, 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
/// void setRange(
///     int start,
///     int end,
///     Iterable<E> iterable, [
///     int skipCount = 0
/// ])
/// Copies the objects of iterable, skipping skipCount objects first, into the
/// range start, inclusive, to end, exclusive, of the list.
/// @description Checks that elements are set correctly.
/// @author ngl@unipro.ru


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

Float64x2 f64x2(v) => new Float64x2.splat(v);

listEquals(List<Float64x2> expected, Float64x2List actual) {
  Expect.equals(expected.length, actual.length);
  for (int i = 0; i < expected.length; ++i) {
    Expect.equals(expected[i].x, actual[i].x);
    Expect.equals(expected[i].y, actual[i].y);
  }
}

main() {
  var l = new Float64x2List(9);
  l.setRange(4, 5, [f64x2(1.0)]);
  listEquals([
    f64x2(0.0), f64x2(0.0), f64x2(0.0), f64x2(0.0), f64x2(1.0),
    f64x2(0.0), f64x2(0.0), f64x2(0.0), f64x2(0.0)
  ], l);

  l.setRange(5, 7, [f64x2(2.0), f64x2(2.0), f64x2(2.0), f64x2(2.0)]);
  listEquals([
    f64x2(0.0), f64x2(0.0), f64x2(0.0), f64x2(0.0), f64x2(1.0),
    f64x2(2.0), f64x2(2.0), f64x2(0.0), f64x2(0.0)
  ], l);

  l.setRange(0, 3, [f64x2(3.0), f64x2(3.0), f64x2(3.0)]);
  listEquals([
    f64x2(3.0), f64x2(3.0), f64x2(3.0), f64x2(0.0), f64x2(1.0),
    f64x2(2.0), f64x2(2.0), f64x2(0.0), f64x2(0.0)
  ], l);

  l.setRange(4, 9, [
    f64x2(4.0), f64x2(4.0), f64x2(4.0), f64x2(4.0), f64x2(4.0),
    f64x2(4.0), f64x2(4.0), f64x2(4.0), f64x2(4.0)
  ]);
  listEquals([
    f64x2(3.0), f64x2(3.0), f64x2(3.0), f64x2(0.0), f64x2(4.0),
    f64x2(4.0), f64x2(4.0), f64x2(4.0), f64x2(4.0)
  ], l);

  l.setRange(0, 2, [f64x2(5.0), f64x2(6.0), f64x2(7.0)], 1);
  listEquals([
    f64x2(6.0), f64x2(7.0), f64x2(3.0), f64x2(0.0), f64x2(4.0),
    f64x2(4.0), f64x2(4.0), f64x2(4.0), f64x2(4.0)
  ], l);

  l.setRange(7, 8, [f64x2(5.0), f64x2(6.0), f64x2(7.0)], 2);
  listEquals([
    f64x2(6.0), f64x2(7.0), f64x2(3.0), f64x2(0.0), f64x2(4.0),
    f64x2(4.0), f64x2(4.0), f64x2(7.0), f64x2(4.0)
  ], l);
}