using Chernobyl.Unity.Math;
using FluentAssertions;
using NUnit.Framework;
using UnityEngine;
using Array = System.Array;

namespace Chernobyl.Unity.Test.Math
{
    [TestFixture, Description("Tests for the code under Math.cs")]
    public class MathTests
    {
        #region Vector2IntExt.CalculateCenter(IEnumerable<Vector2Int>)

        [Test, Description("Ensures that Vector2IntExt.CalculateCenter(IEnumerable<Vector2Int>) " +
                           "returns the correct point when given multiple points.")]
        public void CalculateCenterWithMultiplePoints()
        {
            var points = new[] {new Vector2Int(2, 6), new Vector2Int(5, 7), new Vector2Int(4, 8)};
            points.CalculateCenter().Should().Be(new Vector2Int(4, 7));
        }

        [Test, Description("Ensures that Vector2IntExt.CalculateCenter(IEnumerable<Vector2Int>) " +
                           "returns the correct point when given no points.")]
        public void CalculateCenterWithNoPoints()
        {
            Array.Empty<Vector2Int>().CalculateCenter().Should().Be(new Vector2Int(0, 0));
        }

        #endregion
    }
}