/// <summary>
/// Initializes a new instance of the <see cref="ParameterConfigurationSpaceGenomeBuilderTest"/> class.
/// </summary>
public ParameterConfigurationSpaceGenomeBuilderTest()
{
this._parameterSpecification = ParameterConfigurationSpaceGenomeBuilderTest.CreateParameterConfigurationSpaceSpecification();
this._parameterTree = AcLibUtils.CreateParameterTree(this._parameterSpecification);
this._genomeBuilder = new ParameterConfigurationSpaceGenomeBuilder(
this._parameterTree,
this._parameterSpecification,
this._configuration);
Randomizer.Reset();
Randomizer.Configure();
}
public void MakeGenomeValidOnlyChangesRelevantParameters()
{
// Create a specification with several parameters.
var parameters = new List <IParameterNode>
{
new ValueNode <int>("a", new IntegerDomain(-2, 4)),
new ValueNode <int>("Forbidden", new IntegerDomain(-30, 60)),
new ValueNode <int>("c", new IntegerDomain(-2, 4)),
};
var forbiddenValue = new Dictionary <string, IAllele> {
{ "Forbidden", new Allele <int>(0) }
};
var inactiveForbiddenValue = new Dictionary <string, IAllele> {
{ "a", new Allele <int>(2) }
};
var forbiddenCombinations = new List <ForbiddenParameterCombination>
{
new ForbiddenParameterCombination(inactiveForbiddenValue),
new ForbiddenParameterCombination(forbiddenValue),
};
var multipleParameterSpecification = new ParameterConfigurationSpaceSpecification(
parameters,
new Dictionary <string, List <EqualsCondition> >(),
forbiddenCombinations);
this._genomeBuilder = new ParameterConfigurationSpaceGenomeBuilder(
AcLibUtils.CreateParameterTree(multipleParameterSpecification),
multipleParameterSpecification,
this._configuration);
// Several times:
int numberTests = 20;
for (int i = 0; i < numberTests; i++)
{
// Create an invalid genome.
var genome = new Genome();
genome.SetGene("a", new Allele <int>(-1));
genome.SetGene("Forbidden", new Allele <int>(0));
genome.SetGene("c", new Allele <int>(2));
// Repair it.
this._genomeBuilder.MakeGenomeValid(genome);
// Check it is repaired with only the forbidden value changed.
Assert.NotEqual(
0,
genome.GetGeneValue("Forbidden").GetValue());
Assert.Equal(-1, genome.GetGeneValue("a").GetValue());
Assert.Equal(2, genome.GetGeneValue("c").GetValue());
}
}
public void MakeGenomeValidCanHandleMultipleIssues()
{
// Create a specification with dependent rules.
var parameters = new List <IParameterNode>
{
new ValueNode <int>("a", new IntegerDomain(-2, 4)),
new ValueNode <int>("Forbidden", new CategoricalDomain <int>(new List <int> {
6, 89
})),
new ValueNode <int>("c", new IntegerDomain(-2, 4)),
};
var forbiddenValue = new Dictionary <string, IAllele> {
{ "Forbidden", new Allele <int>(6) }
};
var dependentRule = new Dictionary <string, IAllele> {
{ "a", new Allele <int>(2) }, { "Forbidden", new Allele <int>(89) }
};
var forbiddenCombinations = new List <ForbiddenParameterCombination>
{
new ForbiddenParameterCombination(dependentRule),
new ForbiddenParameterCombination(forbiddenValue),
};
var multipleParameterSpecification = new ParameterConfigurationSpaceSpecification(
parameters,
new Dictionary <string, List <EqualsCondition> >(),
forbiddenCombinations);
this._genomeBuilder = new ParameterConfigurationSpaceGenomeBuilder(
AcLibUtils.CreateParameterTree(multipleParameterSpecification),
multipleParameterSpecification,
this._configuration);
// Create an genome which is invalid and needs at least two mutations to get valid.
var genome = new Genome();
genome.SetGene("a", new Allele <int>(2));
genome.SetGene("Forbidden", new Allele <int>(6));
genome.SetGene("c", new Allele <int>(-1));
this._genomeBuilder.MakeGenomeValid(genome);
Assert.Equal(89, genome.GetGeneValue("Forbidden").GetValue());
Assert.NotEqual(2, genome.GetGeneValue("a").GetValue());
Assert.Equal(-1, genome.GetGeneValue("c").GetValue());
}
public void MakeGenomeValidThrowsForImpossibleTasks()
{
// Create a specification in which every value is forbidden.
var parameters = new List <IParameterNode>
{
new ValueNode <int>("a", new CategoricalDomain <int>(new List <int> {
7, -12
}))
};
var forbiddenValue = new Dictionary <string, IAllele> {
{ "a", new Allele <int>(7) }
};
var secondForbidden = new Dictionary <string, IAllele> {
{ "a", new Allele <int>(-12) }
};
var forbiddenCombinations = new List <ForbiddenParameterCombination>
{
new ForbiddenParameterCombination(forbiddenValue),
new ForbiddenParameterCombination(secondForbidden),
};
var impossibleSpecification = new ParameterConfigurationSpaceSpecification(
parameters,
new Dictionary <string, List <EqualsCondition> >(),
forbiddenCombinations);
this._genomeBuilder = new ParameterConfigurationSpaceGenomeBuilder(
AcLibUtils.CreateParameterTree(impossibleSpecification),
impossibleSpecification,
this._configuration);
// Try to repair a genome.
var genome = new Genome();
genome.SetGene("a", new Allele <int>(7));
Assert.Throws <TimeoutException>(() => this._genomeBuilder.MakeGenomeValid(genome));
}