using Developpez.Dotnet.Measures;
using NUnit.Framework;

namespace Developpez.Dotnet.Tests.Measures
{
    [TestFixture]
    public class KelvinTests
    {
        [Test]
        public void Test_Equality()
        {
            Kelvin value1 = 40.5;
            Kelvin value2 = 40.5;
            Assert.AreEqual(value1, value2);
            Assert.AreNotSame(value1, value2);

            Kelvin value3 = 45.5;
            Assert.AreNotEqual(value1, value3);

            Assert.IsTrue(value1 == value2);
            Assert.IsTrue(value1 != value3);
        }

        [Test]
        public void Test_Comparison()
        {
            Kelvin value1 = 40.50;
            Kelvin value2 = 40.55;

            Assert.IsTrue(value1 < value2);
            Assert.IsTrue(value2 > value1);

            Assert.IsFalse(value1 > value2);
            Assert.IsFalse(value2 < value1);


            Kelvin value3 = 40.50;
            Kelvin value4 = 40.50;
            Kelvin value5 = 40.501;

            Assert.IsTrue(value3 <= value4);
            Assert.IsTrue(value3 >= value4);

            Assert.IsTrue(value4 <= value5);
            Assert.IsFalse(value4 >= value5);
        }

        [Test]
        public void Test_Operation()
        {
            Kelvin value1 = 33.33;
            Kelvin value2 = 3.55;

            Kelvin expectedAdd = (33.33 + 3.55);
            Assert.AreEqual(expectedAdd, value1 + value2);

            Kelvin expectedRem = (33.33 - 3.55);
            Assert.AreEqual(expectedRem, value1 - value2);

            Kelvin expectedMul = 99.99;
            Assert.AreEqual(expectedMul, value1*3);

            Kelvin expectedDiv = 11.11;
            Assert.AreEqual(expectedDiv, value1/3);
        }

        [Test]
        public void Test_Parsing()
        {
            Kelvin value1 = -159.987;
            string text = value1.ToString();
            Assert.AreEqual("-159,987 K", text);

            Kelvin value2;
            Assert.IsTrue(Kelvin.TryParse(text, out value2));
            Assert.AreEqual(value1, value2);

            Assert.IsFalse(Kelvin.TryParse("15.15,15 K", out value2));
            Assert.IsFalse(Kelvin.TryParse("15,15,15 K", out value2));
            Assert.IsTrue(Kelvin.TryParse("1 515,15 K", out value2));
        }
    }
}