using Microsoft.VisualStudio.TestTools.UnitTesting;

using BGC;

namespace BasicGeometryTest.Vector2
{
    [TestClass]
    public class Vector2IsZeroTest
    {
        [TestMethod]
        public void IsZeroFP32()
        {
            Vector2FP32 vector = new Vector2FP32();

            Assert.IsTrue(vector.IsZero());

            vector.SetValues(UtilityFP32.EPSYLON * 0.75f, 0.0f);

            Assert.IsTrue(vector.IsZero());

            vector.SetValues(-UtilityFP32.EPSYLON * 0.5f, -UtilityFP32.EPSYLON * 0.5f);

            Assert.IsTrue(vector.IsZero());

            vector.SetValues(-UtilityFP32.EPSYLON * 1.25f, -UtilityFP32.EPSYLON * 1.25f);

            Assert.IsFalse(vector.IsZero());
        }

        [TestMethod]
        public void IsZeroFP64()
        {
            Vector2FP64 vector = new Vector2FP64();

            Assert.IsTrue(vector.IsZero());

            vector.SetValues(UtilityFP64.EPSYLON * 0.75, 0.0);

            Assert.IsTrue(vector.IsZero());

            vector.SetValues(-UtilityFP64.EPSYLON * 0.5, UtilityFP64.EPSYLON * 0.5);

            Assert.IsTrue(vector.IsZero());

            vector.SetValues(UtilityFP64.EPSYLON * 1.25, UtilityFP64.EPSYLON * 1.25);

            Assert.IsFalse(vector.IsZero());
        }
    }
}