using NUnit.Framework;

namespace Unity.Netcode.EditorTests
{
    internal class ArithmeticTests
    {
        [Test]
        public void TestCeil()
        {
            Assert.That(Arithmetic.CeilingExact(10, 5), Is.EqualTo(2));
            Assert.That(Arithmetic.CeilingExact(11, 5), Is.EqualTo(3));
            Assert.That(Arithmetic.CeilingExact(0, 5), Is.EqualTo(0));
            Assert.That(Arithmetic.CeilingExact(1, 5), Is.EqualTo(1));
            Assert.That(Arithmetic.CeilingExact(2, 5), Is.EqualTo(1));
            Assert.That(Arithmetic.CeilingExact(3, 5), Is.EqualTo(1));
            Assert.That(Arithmetic.CeilingExact(4, 5), Is.EqualTo(1));
            Assert.That(Arithmetic.CeilingExact(5, 5), Is.EqualTo(1));
            Assert.That(Arithmetic.CeilingExact(6, 5), Is.EqualTo(2));
        }

        [Test]
        public void TestZigZag()
        {
            Assert.That(Arithmetic.ZigZagDecode(Arithmetic.ZigZagEncode(1234)), Is.EqualTo(1234));
            Assert.That(Arithmetic.ZigZagDecode(Arithmetic.ZigZagEncode(-1)), Is.EqualTo(-1));
            Assert.That(Arithmetic.ZigZagDecode(Arithmetic.ZigZagEncode(0)), Is.EqualTo(0));
            Assert.That(Arithmetic.ZigZagDecode(Arithmetic.ZigZagEncode(long.MaxValue)), Is.EqualTo(long.MaxValue));
            Assert.That(Arithmetic.ZigZagDecode(Arithmetic.ZigZagEncode(long.MinValue)), Is.EqualTo(long.MinValue));
        }
    }
}