using Deltares.Piping.Data;
using Deltares.Standard;
using NUnit.Framework;

namespace Deltares.Piping.Test
{
    [TestFixture]
    public class TestPipingModel3Calculation
    {
        private const double CToleranceHeadDrop = 0.000005;

        [Test]
        public void TestHeadDropCalculation()
        {
            var pipingModel3Calculation = new PipingModel3Calculation();
            pipingModel3Calculation.Height1 = 10.0;
            pipingModel3Calculation.Height2 = 20.0;
            pipingModel3Calculation.Permeability1 = 1.0e-4;
            pipingModel3Calculation.Permeability2 = 1.0e-7;
            pipingModel3Calculation.Permeability3 = 1.0e-4;
            pipingModel3Calculation.ParticleDiameter = 200.0;
            pipingModel3Calculation.CrackLength = 0.0;
            pipingModel3Calculation.HeadDrop = 0.0;
            pipingModel3Calculation.IsHeadDropCalculation = true;
            pipingModel3Calculation.PipingCommonData.BeddingAngle = 33.0;
            pipingModel3Calculation.PipingCommonData.FluidisationGradient = 0.3;
            pipingModel3Calculation.PipingCommonData.ParticleUnitWeight = 26.50;
            pipingModel3Calculation.PipingCommonData.WaterUnitWeight = Physics.UnitWeightOfwater;
            pipingModel3Calculation.PipingCommonData.WaterViscosity = 1.33000E-06;
            pipingModel3Calculation.PipingCommonData.WhitesConstant = 0.25;
            pipingModel3Calculation.PipingCommonData.SafetyFactor = 1.20;
            pipingModel3Calculation.PipingCommonData.IsAdjustHeadDrop = false;
            pipingModel3Calculation.SeepageLength = 40.0;
            pipingModel3Calculation.WellContent = 0.001;
            pipingModel3Calculation.CalculateHeadDropPC3();
            Assert.AreEqual(3.41882434767704, pipingModel3Calculation.HeadDrop, CToleranceHeadDrop);
            Assert.AreEqual(2.39406278442646, pipingModel3Calculation.HeadDropWell, CToleranceHeadDrop);

            pipingModel3Calculation.PipingCommonData.IsAdjustHeadDrop = true;
            pipingModel3Calculation.CalculateHeadDropPC3();
            Assert.AreEqual(2.8490202322, pipingModel3Calculation.HeadDrop, CToleranceHeadDrop);
            Assert.AreEqual(2.3940631226, pipingModel3Calculation.HeadDropWell, CToleranceHeadDrop);
        }
    }
}