public void Reinsertion_FitnessAssessedIndividual_NotAllowed()
{
// TODO: Is this the desired behaviour?
var newInd = ObjectCreators.GetIndividual(builder.StartingDecVec);
ObjectCreators.EvaluateIndividualAndSetFitness(newInd);
Assert.Throws <InvalidOperationException>(() => optimiserMock.ReInsert(new[] { newInd }));
}
public void Centroid_DifferentLengthDecisionVectors_Throws()
{
var newInd = ObjectCreators.GetIndividual(Enumerable.Repeat <double>(1.2, bestDv.Length + 1));
ObjectCreators.EvaluateIndividualAndSetFitness(newInd, BestFitness + FitnessDifference);
var pop2 = ObjectCreators.GetEmptyPopulation(5, false);
pop2.AddIndividual(singleObjectivePopulation.Best());
pop2.AddIndividual(newInd);
Assert.Throws <InvalidOperationException>(() => pop2.Centroid());
}
public void VariableLengthDvPop_AddIndividualWithDifferentLengthDv_Succeeds()
{
var numDims = ind.DecisionVector.Count;
var ind1 = ObjectCreators.GetIndividual(Enumerable.Range(0, numDims + 1).ToArray());
ObjectCreators.EvaluateIndividualAndSetFitness(ind1);
popVarLenDv.AddIndividual(ind1);
Assert.True(popVarLenDv.Count == 2);
Assert.Equal(popVarLenDv[1], ind1);
}
public void ConstantLengthDvPop_AddBetterIndividual_SortsCorrectly()
{
var ind1 = ObjectCreators.GetIndividual(
ind.DecisionVector.Select(i => (double)i + 1).ToArray());
ObjectCreators.EvaluateIndividualAndSetFitness(ind1, ind.Fitness - 1);
popConstLenDvInitInd.AddIndividual(ind1);
Assert.Equal(ind1, popConstLenDvInitInd.Best());
Assert.Equal(ind, popConstLenDvInitInd.Worst());
}
public void ConstantLengthDvPop_GetDecisionVectors_ReturnsSortedList()
{
var ind1 = ObjectCreators.GetIndividual(
ind.DecisionVector.Select(i => (double)i + 1).ToArray());
ObjectCreators.EvaluateIndividualAndSetFitness(ind1, ind.Fitness - 1);
popConstLenDvInitInd.AddIndividual(ind1);
var decisionVectors = popConstLenDvInitInd.GetMemberDecisionVectors();
Assert.True(decisionVectors.Count() == 2);
Assert.Equal(ind1.DecisionVector, decisionVectors.ElementAt(0));
}
public PopulationExtensionsTests()
{
// Set up single-objective population for Convergence and Centroid tests
bestDv = new[] { 0.1, 0.5, 1.2 };
worstDv = new[] { 0.1, bestDv[1] + DvDifference, 1.2 };
var ind1 = ObjectCreators.GetIndividual(worstDv);
var ind2 = ObjectCreators.GetIndividual(bestDv);
ObjectCreators.EvaluateIndividualAndSetFitness(ind1, BestFitness + FitnessDifference);
ObjectCreators.EvaluateIndividualAndSetFitness(ind2, BestFitness);
singleObjectivePopulation = ObjectCreators.GetEmptyPopulation(140, true);
singleObjectivePopulation.AddIndividual(ind1);
singleObjectivePopulation.AddIndividual(ind2);
}
public PopulationTests()
{
popConstLenDv = new Population(
140, null, true);
var testVector = new[] { 0.5, 1.5 };
unevaluatedInd = ObjectCreators.GetIndividual(testVector);
ind = ObjectCreators.GetIndividual(testVector);
ObjectCreators.EvaluateIndividualAndSetFitness(ind);
popConstLenDvInitInd = new Population(
140, new[] { ind }, true);
popVarLenDv = new Population(
140, new[] { ind }, false);
}
public void ConstantLengthDvPop_ReplaceIndividualWithIndex_PerformsCorrectly()
{
var bestInd = ObjectCreators.GetIndividual(
ind.DecisionVector.Select(i => (double)i + 1).ToArray());
ObjectCreators.EvaluateIndividualAndSetFitness(bestInd, ind.Fitness - 1);
popConstLenDvInitInd.AddIndividual(bestInd);
var evenBetterInd = ObjectCreators.GetIndividual(
ind.DecisionVector.Select(i => (double)i + 1).ToArray());
ObjectCreators.EvaluateIndividualAndSetFitness(evenBetterInd, ind.Fitness - 2);
popConstLenDvInitInd.ReplaceIndividualAt(1, evenBetterInd);
Assert.Equal(evenBetterInd, popConstLenDvInitInd.Best());
Assert.True(popConstLenDvInitInd.Count == 2);
}
public void GetParetoFront_OneDimension_ReturnsBest()
{
var bestInd = ObjectCreators.GetIndividual(
ind.DecisionVector.Select(i => (double)i + 1).ToArray());
ObjectCreators.EvaluateIndividualAndSetFitness(bestInd, ind.Fitness - 1);
popConstLenDvInitInd.AddIndividual(bestInd);
var evenBetterInd = ObjectCreators.GetIndividual(
ind.DecisionVector.Select(i => (double)i + 1).ToArray());
ObjectCreators.EvaluateIndividualAndSetFitness(evenBetterInd, ind.Fitness - 2);
popConstLenDvInitInd.AddIndividual(evenBetterInd);
// TODO!
//Assert.True(popConstLenDvInitInd.ParetoFront().Count() == 1);
//Assert.Equal(popConstLenDvInitInd.Best(), popConstLenDvInitInd.ParetoFront().First());
}