AllocatingGCMemoryのテスト.cs

using NUnit.Framework;
using System.Linq;
using UnityEngine;
using UnityEngine.TestTools.Constraints;
using Is = UnityEngine.TestTools.Constraints.Is;

namespace Tests
{
    public class AllocatingGCMemoryのテスト
    {
        static readonly int[] a = new int[] {
            1, 2, 3, 4, 5,
            6, 7, 8, 9, 0
        };

        [Test]
        public void 合計テスト1()
        {
            float sum = 0;
            Assert.That(() => {
                sum = (float)Sum(a);
            }, Is.Not.AllocatingGCMemory());
            Assert.AreEqual(45, sum);
        }

        [Test]
        public void 合計テスト2()
        {
            float sum = 0;
            Assert.That(() => {
                sum = (float)a.Sum();
            }, Is.Not.AllocatingGCMemory());
            Assert.AreEqual(45, sum);
        }

        [Test]
        public void 配列を定義()
        {
            Assert.That(() => {
                int[] c = new int[] {
                    1, 2, 3, 4, 5,
                    6, 7, 8, 9, 0
                };
            }, Is.Not.AllocatingGCMemory());
        }

        [Test]
        public void キャスト実験_構造体()
        {
            Vector2Int v2 = new Vector2Int(10, 32);
            Vector3Int result;

            Assert.That(() => {
                result = (Vector3Int)v2;
            }, Is.Not.AllocatingGCMemory());

        }

        [Test]
        public void キャストの実験_データ型()
        {
            int count = 100;
            float result;

            Assert.That(() => {
                result = count;
            }, Is.Not.AllocatingGCMemory());

        }

        [Test]
        public void 文字列の結合()
        {
            string message1 = "hoge";
            string message2 = "moge";
            string result = string.Empty;

            Assert.That(() => {
                result = message1 + message2;
            }, Is.Not.AllocatingGCMemory());
            Assert.AreEqual("hogemoge", result);
        }


        int Sum(int[] input)
        {
            int result = 0;
            foreach (var i in input)
            {
                result += i;
            }
            return result;
        }
    }
}