Tests/MathCore.Tests/Extensions/RandomExtensionsTests.cs - dev - shmachilin/MathCore

Tests/MathCore.Tests/Extensions/RandomExtensionsTests.cs

61 строка2 KB

Infarh

Рефакторинг тестов

03 окт 2023, 13:21

03 окт 2023, 13:21ed1f7b7

using System.Globalization;

using MathCore.Statistic;

namespace MathCore.Tests.Extensions;

[TestClass]
public class RandomExtensionsTests
{
    //[Owner("Tester")]
    [TestMethod/*Iterative(100)*/, Ignore/*, Timeout(TestTimeout.Infinite)*/, Description("Тест нормального распределения")]
    public void NextNormal_SingleValue_Sigma1Mu0()
    {
        const double sigma  = 3;
        const double sigma2 = sigma * sigma;
        const double mu     = 5;
        const int count     = 100000;

        var values = new double[count];

        //var seed = (int) (DateTime.Now.Ticks % int.MaxValue);
        const int seed = 1395601201;
        var       rnd  = new Random(seed);
        for (var i = 0; i < count; i++) 
            values[i] = rnd.NextNormal(sigma2, mu);

        //using(var file = File.CreateText(@"d:\123\values.txt"))
        //    foreach (var value in values)
                //file.WriteLine(value.ToString(CultureInfo.InvariantCulture));

        var normal_gauss_distribution = Distributions.NormalGauss(sigma, mu);
        var pirson_criteria = values.GetPirsonsCriteria(normal_gauss_distribution, out var freedom_degree, out _, out _);

        var quantile = MathCore.SpecialFunctions.Distribution.Student.QuantileHi2(0.80, freedom_degree);

        pirson_criteria.AssertLessThan(quantile, $"seed:{seed}");
    }

    [TestMethod, Ignore]
    public void NextNormal_SingleValue_Sigma3Mu5()
    {
        const double sigma = 3;
        const double mu    = 5;

        const int count  = 10000;
        var       values = new double[count];

        var rnd = new Random();
        for (var i = 0; i < count; i++)
            values[i] = rnd.NextNormal(sigma, mu);

        var pirsons_criteria = values.GetPirsonsCriteria(
            Distributions.NormalGauss(sigma, mu),
            out var freedom_degree, 
            out _, out _);

        var quantile = MathCore.SpecialFunctions.Distribution.Student.QuantileHi2(0.95, freedom_degree);

        Assert.That.Value(pirsons_criteria).LessThan(quantile);
    }
}