public void SelectionOperator_Select_NullPopulation()
{
GeneticAlgorithm algorithm = GetAlgorithm();
MockSelectionOperator op = new MockSelectionOperator();
op.Initialize(algorithm);
Assert.Throws <ArgumentNullException>(() => op.SelectEntities(1, null));
}
public void SelectionOperator_Serialization()
{
MockSelectionOperator op = new MockSelectionOperator
{
SelectionBasedOnFitnessType = FitnessType.Raw
};
MockSelectionOperator result = (MockSelectionOperator)SerializationHelper.TestSerialization(op, new Type[0]);
Assert.Equal(op.SelectionBasedOnFitnessType, result.SelectionBasedOnFitnessType);
}
public void SelectionOperator_Select_EmptyPopulation()
{
GeneticAlgorithm algorithm = GetAlgorithm();
MockSelectionOperator op = new MockSelectionOperator();
op.Initialize(algorithm);
MockPopulation population = new MockPopulation();
population.Initialize(algorithm);
Assert.Throws <ArgumentException>(() => op.SelectEntities(1, population));
}
public void SelectionOperator_Select()
{
GeneticAlgorithm algorithm = GetAlgorithm();
MockSelectionOperator op = new MockSelectionOperator();
op.Initialize(algorithm);
MockPopulation population = new MockPopulation();
population.Initialize(algorithm);
GeneticEntity entity1 = new MockEntity();
entity1.Initialize(algorithm);
GeneticEntity entity2 = new MockEntity();
entity2.Initialize(algorithm);
population.Entities.Add(entity1);
population.Entities.Add(entity2);
IList <GeneticEntity> selectedEntities = op.SelectEntities(1, population);
Assert.Same(entity1, selectedEntities[0]);
Assert.Equal(1, op.DoSelectCallCount);
}
public async Task MultiDemeGeneticAlgorithm_CreateNextGeneration_Async()
{
TestMultiDemeGeneticAlgorithm algorithm = new TestMultiDemeGeneticAlgorithm
{
FitnessEvaluator = new MockFitnessEvaluator(),
GeneticEntitySeed = new MockEntity(),
PopulationSeed = new SimplePopulation
{
MinimumPopulationSize = 3
},
MigrantCount = 1,
SelectionOperator = new MockSelectionOperator
{
SelectionBasedOnFitnessType = FitnessType.Raw
}
};
MockSelectionOperator selectionOp = new MockSelectionOperator();
algorithm.SelectionOperator = selectionOp;
await algorithm.InitializeAsync();
PrivateObject accessor = new PrivateObject(algorithm);
algorithm.Environment.Populations.Add(GetPopulation(algorithm));
algorithm.Environment.Populations.Add(GetPopulation(algorithm));
SimplePopulation population = GetPopulation(algorithm);
algorithm.Environment.Populations.Add(population);
int prevPopCount = population.Entities.Count;
await(Task) accessor.Invoke("CreateNextGenerationAsync", population);
Assert.Equal(1, selectionOp.DoSelectCallCount);
Assert.Equal(prevPopCount, population.Entities.Count);
}
public void SelectionOperator_Ctor_NullAlgorithm()
{
MockSelectionOperator op = new MockSelectionOperator();
Assert.Throws <ArgumentNullException>(() => op.Initialize(null));
}
