public void GetCurrentPopulation_CheckPopulationIsRight(bool includeHistory)
{
var populationManager = new TestPopulationManager(new double[] { 2, 2 });
populationManager.SetPopulationGenerated(new[] { new double[] { 3, 3 } });
var engineBuilder =
new TestGeneticSearchEngineBuilder(2, int.MaxValue, populationManager);
if (includeHistory)
{
engineBuilder.IncludeAllHistory();
}
var engine = engineBuilder.Build();
var result1 = engine.Next();
var result2 = engine.GetCurrentPopulation();
Assertions.AssertAreTheSame(result1, result2);
result1 = engine.Next();
result2 = engine.GetCurrentPopulation();
Assertions.AssertAreTheSame(result1, result2);
}
public void RenewIfNoImprovmentTest2(RunType runType)
{
var populationManager = new TestPopulationManager(new double[] { 1, 1, 1 });
populationManager.SetPopulationGenerated(new[] { new double[] { 2, 2, 2 } });
using (var engine = new TestGeneticSearchEngineBuilder(POPULATION_SIZE, 4, populationManager)
.AddPopulationRenwalManager(new RenewIfNoImprovment(2, 10, 1)).IncludeAllHistory().Build())
{
var result = engine.Run(runType);
Assert.AreEqual(2, result.BestChromosome.Evaluate());
}
}
public void RenewAtDifferenceBetweenAverageAndMaximumFitnessTest(RunType runType)
{
var populationManager = new TestPopulationManager(new double[] { 1, 2, 1 });
populationManager.SetPopulationGenerated(new[]
{ new double[] { 2, 5, 2 }, new double[] { 6, 6, 6 }, new double[] { 7, 7, 7 } });
using (var engine = new TestGeneticSearchEngineBuilder(POPULATION_SIZE, 4, populationManager)
.AddPopulationRenwalManager(new RenewAtDifferenceBetweenAverageAndMaximumFitness(1, 1))
.IncludeAllHistory().Build())
{
var result = engine.Run(runType);
Assert.AreEqual(5, result.BestChromosome.Evaluate());
}
}
public void RenewOnlySomeChromosomes(RunType runType)
{
var populationManager = new TestPopulationManager(new double[] { 4, 4, 4 });
populationManager.SetPopulationGenerated(new[]
{ new double[] { 3, 3, 3 }, new double[] { 2, 2, 2 }, new double[] { 1, 1, 1 } });
using (var engine = new TestGeneticSearchEngineBuilder(POPULATION_SIZE, 4, populationManager)
.AddPopulationRenwalManager(new RenewAtConvergence(0.9, 0.5))
.IncludeAllHistory().Build())
{
var result = engine.Run(runType);
Assert.AreEqual(4, result.BestChromosome.Evaluate());
}
}
public void RenewPercantagePopulation_PercentageRenewed(double percent)
{
var populationManager = new TestPopulationManager(new double[] { 2, 2, 2, 2, 2, 2, 2, 2, 2, 2 });
populationManager.SetPopulationGenerated(new[] { new double[] { 3, 3, 3, 3, 3, 3, 3, 3, 3, 3 } });
var engine =
new TestGeneticSearchEngineBuilder(10, int.MaxValue, populationManager).Build();
engine.Next();
var result = engine.RenewPopulation(percent);
var threeCounters = result.Population.Count(chromosme => chromosme.Evaluation == 3);
Assert.AreEqual(percent * 10, threeCounters);
}
public void RenewPopulation_CheckPopulationRenewedSentToNextGeneration()
{
var populationManager = new TestPopulationManager(new double[] { 2, 2 }, c => c.Evaluate() + 1);
populationManager.SetPopulationGenerated(new[] { new double[] { 3, 3 } });
var engine =
new TestGeneticSearchEngineBuilder(2, int.MaxValue, populationManager).Build();
engine.Next();
engine.RenewPopulation(1);
var result = engine.Next();
foreach (var chromosme in result.Population)
{
Assert.AreEqual(4, chromosme.Evaluation);
}
}
public void RenewPopulation_RenewedPopulationUpdated()
{
var initialPopulation = new double[] { 2, 2 };
var renewedPopulation = new double[] { 3, 3 };
var populationManager = new TestPopulationManager(initialPopulation);
populationManager.SetPopulationGenerated(new[] { renewedPopulation });
var engine = CreateEngineBuilder(populationManager).Build();
engine.OnNewGeneration += populationUpdatedOnEvent.Save;
engine.Next();
engine.RenewPopulation(1);
AssertManagersUpdated(new [] { initialPopulation, renewedPopulation });
}
public void RenewPopulationViaManager_RenewedPopulationUpdated()
{
CleanChromosomesAndEvaluations();
var renewManager = A.Fake <IPopulationRenwalManager>();
A.CallTo(() => renewManager.ShouldRenew(A <Population> ._, A <IEnvironment> ._, A <int> ._)).Returns(1);
var renewedPopulation = new double[] { 3, 3 };
var initialPopulation = new double[] { 2, 2 };
var populationManager = new TestPopulationManager(initialPopulation);
populationManager.SetPopulationGenerated(new[] { renewedPopulation });
var builder = CreateEngineBuilder(populationManager);
builder.AddPopulationRenwalManager(renewManager);
var engine = builder.Build();
engine.OnNewGeneration += populationUpdatedOnEvent.Save;
engine.Next();
AssertManagersUpdated(renewedPopulation);
}
