#if !UNITY_5_6_OR_NEWER
using System;
using NUnit.Framework;

namespace LinearAlgebra.Test {
    public class SphericalTest {
        [SetUp]
        public void Setup() {
        }

        [Test]
        public void FromVector3() {
            Vector3 v = new(0, 0, 1);
            Spherical s = Spherical.FromVector3(v);
            Assert.AreEqual(1.0f, s.distance, "s.distance 0 0 1");
            Assert.AreEqual(0.0f, s.direction.horizontal, "s.hor 0 0 1");
            Assert.AreEqual(0.0f, s.direction.vertical, 1.0E-05F, "s.vert 0 0 1");

            v = new(0, 1, 0);
            s = Spherical.FromVector3(v);
            Assert.AreEqual(1.0f, s.distance, "s.distance 0 1 0");
            Assert.AreEqual(0.0f, s.direction.horizontal, "s.hor 0 1 0");
            Assert.AreEqual(90.0f, s.direction.vertical, "s.vert 0 1 0");

            v = new(1, 0, 0);
            s = Spherical.FromVector3(v);
            Assert.AreEqual(1.0f, s.distance, "s.distance 1 0 0");
            Assert.AreEqual(90.0f, s.direction.horizontal, "s.hor 1 0 0");
            Assert.AreEqual(0.0f, s.direction.vertical, 1.0E-05F, "s.vert 1 0 0");
        }

        [Test]
        public void Addition() {
            Spherical v1 = Spherical.Degrees(1, 45, 0);
            Spherical v2 = Spherical.zero;
            Spherical r = Spherical.zero;

            r = v1 + v2;
            Assert.AreEqual(v1.distance, r.distance, 1.0E-05F, "Addition(0,0,0)");

            r = v1;
            r += v2;
            Assert.AreEqual(v1.distance, r.distance, 1.0E-05F, "Addition(0,0,0)");

            v2 = Spherical.Degrees(1, 0, 90);
            r = v1 + v2;
            Assert.AreEqual(Math.Sqrt(2), r.distance, 1.0E-05F, "Addition(1 0 90)");
            Assert.AreEqual(45.0f, r.direction.horizontal, "Addition(1 0 90)");
            Assert.AreEqual(45.0f, r.direction.vertical, "Addition(1 0 90)");
        }
    }
}
#endif