public async Task MultiDemeGeneticAlgorithm_Migrate()
{
MultiDemeGeneticAlgorithm algorithm = new MultiDemeGeneticAlgorithm
{
MinimumEnvironmentSize = 3,
GeneticEntitySeed = new MockEntity(),
PopulationSeed = new SimplePopulation
{
MinimumPopulationSize = 4
},
FitnessEvaluator = new MockFitnessEvaluator(),
MigrantCount = 2,
SelectionOperator = new MockSelectionOperator
{
SelectionBasedOnFitnessType = FitnessType.Scaled
},
};
algorithm.SelectionOperator = new MockSelectionOperator();
algorithm.FitnessEvaluator = new MockFitnessEvaluator();
await algorithm.InitializeAsync();
SimplePopulation population1 = (SimplePopulation)algorithm.Environment.Populations[0];
population1.Entities[0].ScaledFitnessValue = 1;
population1.Entities[1].ScaledFitnessValue = 5;
population1.Entities[2].ScaledFitnessValue = 2;
population1.Entities[3].ScaledFitnessValue = 4;
SimplePopulation population2 = (SimplePopulation)algorithm.Environment.Populations[1];
population2.Entities[0].ScaledFitnessValue = 6;
population2.Entities[1].ScaledFitnessValue = 3;
population2.Entities[2].ScaledFitnessValue = 8;
population2.Entities[3].ScaledFitnessValue = 7;
SimplePopulation population3 = (SimplePopulation)algorithm.Environment.Populations[2];
population3.Entities[0].ScaledFitnessValue = 9;
population3.Entities[1].ScaledFitnessValue = 13;
population3.Entities[2].ScaledFitnessValue = 10;
population3.Entities[3].ScaledFitnessValue = 12;
algorithm.Migrate();
Assert.Equal((double)1, population1.Entities[0].ScaledFitnessValue);
Assert.Equal((double)2, population1.Entities[1].ScaledFitnessValue);
Assert.Equal((double)13, population1.Entities[2].ScaledFitnessValue);
Assert.Equal((double)12, population1.Entities[3].ScaledFitnessValue);
Assert.Equal((double)6, population2.Entities[0].ScaledFitnessValue);
Assert.Equal((double)3, population2.Entities[1].ScaledFitnessValue);
Assert.Equal((double)5, population2.Entities[2].ScaledFitnessValue);
Assert.Equal((double)4, population2.Entities[3].ScaledFitnessValue);
Assert.Equal((double)9, population3.Entities[0].ScaledFitnessValue);
Assert.Equal((double)10, population3.Entities[1].ScaledFitnessValue);
Assert.Equal((double)8, population3.Entities[2].ScaledFitnessValue);
Assert.Equal((double)7, population3.Entities[3].ScaledFitnessValue);
}
public void MultiDemeGeneticAlgorithm_Serialization()
{
MultiDemeGeneticAlgorithm algorithm = new MultiDemeGeneticAlgorithm
{
MigrantCount = 11,
MigrateEachGeneration = 3
};
MultiDemeGeneticAlgorithm result = (MultiDemeGeneticAlgorithm)SerializationHelper.TestSerialization(
algorithm, new Type[] { typeof(DefaultTerminator) });
Assert.Equal(algorithm.MigrantCount, result.MigrantCount);
Assert.Equal(algorithm.MigrateEachGeneration, result.MigrateEachGeneration);
}
