60 lines
2.2 KiB
C#
60 lines
2.2 KiB
C#
using System.Diagnostics.CodeAnalysis;
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using System.Linq;
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using System.Threading.Tasks;
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using FastRng;
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using FastRng.Distributions;
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using NUnit.Framework;
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namespace FastRngTests;
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[ExcludeFromCodeCoverage]
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public class DecisionTester
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{
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[Test]
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[Category(TestCategories.COVER)]
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[Category(TestCategories.NORMAL)]
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public async Task DecisionUniform01()
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{
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using var rng = new MultiThreadedRng<float>();
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var dist = new Uniform<float>(rng);
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var neededCoinTossesA = 0;
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var neededCoinTossesB = 0;
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var neededCoinTossesC = 0;
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for(var n = 0; n < 100; n++) while (!dist.HasDecisionBeenMade(0.0f, 0.1f)) neededCoinTossesA++;
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for(var n = 0; n < 100; n++) while (!dist.HasDecisionBeenMade(0.5f, 0.6f)) neededCoinTossesB++;
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for(var n = 0; n < 100; n++) while (!dist.HasDecisionBeenMade(0.8f, 0.9f)) neededCoinTossesC++;
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var values = new[] {neededCoinTossesA, neededCoinTossesB, neededCoinTossesC};
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var max = values.Max();
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var min = values.Min();
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TestContext.WriteLine($"Coin tosses: a={neededCoinTossesA}, b={neededCoinTossesB}, c={neededCoinTossesC}");
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Assert.That(max - min, Is.LessThanOrEqualTo(250));
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}
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[Test]
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[Category(TestCategories.COVER)]
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[Category(TestCategories.NORMAL)]
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public async Task DecisionWeibull01()
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{
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using var rng = new MultiThreadedRng<float>();
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var dist = new WeibullK05La1<float>(rng);
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var neededCoinTossesA = 0;
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var neededCoinTossesB = 0;
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var neededCoinTossesC = 0;
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for(var n = 0; n < 100; n++) while (!dist.HasDecisionBeenMade(0.0f, 0.1f)) neededCoinTossesA++;
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for(var n = 0; n < 100; n++) while (!dist.HasDecisionBeenMade(0.5f, 0.6f)) neededCoinTossesB++;
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for(var n = 0; n < 100; n++) while (!dist.HasDecisionBeenMade(0.8f, 0.9f)) neededCoinTossesC++;
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var values = new[] {neededCoinTossesA, neededCoinTossesB, neededCoinTossesC};
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var max = values.Max();
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var min = values.Min();
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TestContext.WriteLine($"Coin tosses: a={neededCoinTossesA}, b={neededCoinTossesB}, c={neededCoinTossesC}");
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Assert.That(max - min, Is.LessThanOrEqualTo(2_800));
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}
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} |