84 lines
3.5 KiB
C#
84 lines
3.5 KiB
C#
using System;
|
|
using System.Diagnostics.CodeAnalysis;
|
|
using System.Linq;
|
|
using System.Threading.Tasks;
|
|
using FastRng.Double;
|
|
using NUnit.Framework;
|
|
|
|
namespace FastRngTests.Double.Distributions
|
|
{
|
|
[ExcludeFromCodeCoverage]
|
|
public class LaplaceB01M0
|
|
{
|
|
[Test]
|
|
[Category(TestCategories.COVER)]
|
|
[Category(TestCategories.NORMAL)]
|
|
public async Task TestLaplaceDistribution01()
|
|
{
|
|
using var rng = new MultiThreadedRng();
|
|
var dist = new FastRng.Double.Distributions.LaplaceB01M0(rng);
|
|
var fra = new FrequencyAnalysis();
|
|
|
|
for (var n = 0; n < 100_000; n++)
|
|
fra.CountThis(await dist.NextNumber());
|
|
|
|
var result = fra.NormalizeAndPlotEvents(TestContext.WriteLine);
|
|
|
|
Assert.That(result[0], Is.EqualTo(1.0000000000000000).Within(0.05));
|
|
Assert.That(result[1], Is.EqualTo(0.9048374180359590).Within(0.05));
|
|
Assert.That(result[2], Is.EqualTo(0.8187307530779810).Within(0.05));
|
|
|
|
Assert.That(result[21], Is.EqualTo(0.1224564282529820).Within(0.05));
|
|
Assert.That(result[22], Is.EqualTo(0.1108031583623340).Within(0.05));
|
|
Assert.That(result[23], Is.EqualTo(0.1002588437228040).Within(0.05));
|
|
|
|
Assert.That(result[50], Is.EqualTo(0.0067379469990855).Within(0.003));
|
|
|
|
Assert.That(result[75], Is.EqualTo(0.0005530843701478).Within(0.0015));
|
|
Assert.That(result[85], Is.EqualTo(0.0002034683690106).Within(0.0015));
|
|
Assert.That(result[90], Is.EqualTo(0.0001234098040867).Within(0.0015));
|
|
|
|
Assert.That(result[97], Is.EqualTo(0.0000612834950532).Within(0.0002));
|
|
Assert.That(result[98], Is.EqualTo(0.0000554515994322).Within(0.0002));
|
|
Assert.That(result[99], Is.EqualTo(0.0000501746820562).Within(0.0002));
|
|
}
|
|
|
|
[Test]
|
|
[Category(TestCategories.COVER)]
|
|
[Category(TestCategories.NORMAL)]
|
|
public async Task TestLaplaceGeneratorWithRange01()
|
|
{
|
|
using var rng = new MultiThreadedRng();
|
|
var dist = new FastRng.Double.Distributions.LaplaceB01M0(rng);
|
|
var samples = new double[1_000];
|
|
for (var n = 0; n < samples.Length; n++)
|
|
samples[n] = await dist.NextNumber(-1.0, 1.0);
|
|
|
|
Assert.That(samples.Min(), Is.GreaterThanOrEqualTo(-1.0), "Min out of range");
|
|
Assert.That(samples.Max(), Is.LessThanOrEqualTo(1.0), "Max out of range");
|
|
}
|
|
|
|
[Test]
|
|
[Category(TestCategories.COVER)]
|
|
[Category(TestCategories.NORMAL)]
|
|
public async Task TestLaplaceGeneratorWithRange02()
|
|
{
|
|
using var rng = new MultiThreadedRng();
|
|
var dist = new FastRng.Double.Distributions.LaplaceB01M0(rng);
|
|
var samples = new double[1_000];
|
|
for (var n = 0; n < samples.Length; n++)
|
|
samples[n] = await dist.NextNumber(0.0, 1.0);
|
|
|
|
Assert.That(samples.Min(), Is.GreaterThanOrEqualTo(0.0), "Min is out of range");
|
|
Assert.That(samples.Max(), Is.LessThanOrEqualTo(1.0), "Max is out of range");
|
|
}
|
|
|
|
[Test]
|
|
[Category(TestCategories.COVER)]
|
|
[Category(TestCategories.NORMAL)]
|
|
public void NoRandomNumberGenerator01()
|
|
{
|
|
Assert.Throws<ArgumentNullException>(() => new FastRng.Double.Distributions.LaplaceB01M0(null));
|
|
}
|
|
}
|
|
} |