/******************************************************************************
 * Copyright (C) Ultraleap, Inc. 2011-2021.                                   *
 *                                                                            *
 * Use subject to the terms of the Apache License 2.0 available at            *
 * http://www.apache.org/licenses/LICENSE-2.0, or another agreement           *
 * between Ultraleap and you, your company or other organization.             *
 ******************************************************************************/

using NUnit.Framework;
using System.Collections.Generic;
using UnityEngine;

namespace Leap.Unity.Tests
{

    public class SlidingMaxTest
    {
        public const int MAX_HISTORY = 64;

        private SlidingMax _slidingMax;

        [SetUp]
        public void Setup()
        {
            _slidingMax = new SlidingMax(MAX_HISTORY);
        }

        [TearDown]
        public void Teardown()
        {
            _slidingMax = null;
        }

        [Test]
        public void IsFunctional()
        {
            List<float> list = new List<float>();

            for (int i = 0; i < 1000; i++)
            {
                float newValue = Random.value;

                _slidingMax.AddValue(newValue);

                list.Add(newValue);
                while (list.Count > MAX_HISTORY)
                {
                    list.RemoveAt(0);
                }

                float max = list[0];
                for (int j = 1; j < list.Count; j++)
                {
                    max = Mathf.Max(max, list[j]);
                }

                Assert.That(max, Is.EqualTo(_slidingMax.Max));
            }
        }
    }
}