public void DefineCompetitivePopulationReturnsCurrentSearchPoints()
{
var originalCompetitives = new List <Genome>();
for (int i = 0; i < 5; i++)
{
originalCompetitives.Add(this._genomeBuilder.CreateRandomGenome(age: i % 3));
}
var searchPoints = new List <GenomeSearchPoint>();
for (int i = 0; i < 8; i++)
{
searchPoints.Add(
GenomeSearchPoint.CreateFromGenome(
this._genomeBuilder.CreateRandomGenome(age: 0),
this._parameterTree,
0,
this._genomeBuilder));
}
var informationFlowStrategy = new GlobalDifferentialEvolutionInformationFlow(
this._deConfiguration,
this._parameterTree,
this._genomeBuilder);
var competitiveIndividuals =
informationFlowStrategy.DefineCompetitivePopulation(originalCompetitives, null, searchPoints);
Assert.Equal(
searchPoints.Select(point => point.Genome.ToString()).OrderBy(x => x).ToArray(),
competitiveIndividuals.Select(genome => genome.ToString()).OrderBy(x => x).ToArray());
}
public void DetermineInitialPointsDoesNotThrowForJadePopulationEqualToThree()
{
// Generate a population with 3 competitive genomes.
var population = new Population(this._completeConfiguration);
for (int i = 0; i < 3; i++)
{
population.AddGenome(this._genomeBuilder.CreateRandomGenome(age: i % 3), isCompetitive: true);
}
var incumbent = this._genomeBuilder.CreateRandomGenome(age: 2);
// Try to call the method. --> Should work.
var informationFlow = new GlobalDifferentialEvolutionInformationFlow(
this._deConfiguration,
this._parameterTree,
this._genomeBuilder);
informationFlow.DetermineInitialPoints(population, incumbent);
}
public void DetermineInitialPointsThrowsForJadePopulationSmallerThree()
{
// Generate a population with only 2 competitive genomes.
var population = new Population(this._completeConfiguration);
for (int i = 0; i < 2; i++)
{
population.AddGenome(this._genomeBuilder.CreateRandomGenome(age: i % 3), isCompetitive: true);
}
var incumbent = this._genomeBuilder.CreateRandomGenome(age: 2);
// Try to call the method.
var informationFlow = new GlobalDifferentialEvolutionInformationFlow(
this._deConfiguration,
this._parameterTree,
this._genomeBuilder);
Assert.Throws <ArgumentException>(() => informationFlow.DetermineInitialPoints(population, incumbent));
}
public void DetermineInitialPointsTransformsAllCompetitives()
{
var population = new Population(this._completeConfiguration);
for (int i = 0; i < 5; i++)
{
population.AddGenome(this._genomeBuilder.CreateRandomGenome(age: i % 3), isCompetitive: true);
}
for (int i = 0; i < 2; i++)
{
population.AddGenome(this._genomeBuilder.CreateRandomGenome(age: i % 3), isCompetitive: false);
}
var informationFlowStrategy = new GlobalDifferentialEvolutionInformationFlow(
this._deConfiguration,
this._parameterTree,
this._genomeBuilder);
var points = informationFlowStrategy.DetermineInitialPoints(population, null);
Assert.Equal(
population.GetCompetitiveIndividuals().Select(genome => genome.ToString()).OrderBy(x => x).ToArray(),
points.Select(point => point.Genome.ToString()).OrderBy(x => x).ToArray());
}
