public void InversionOperatorShouldReturnCorrectChildren()
{
IGene[] parent = new IGene[]
{
new UintGene(1), new UintGene(2), new UintGene(3),
new UintGene(4), new UintGene(5), new UintGene(6),
new UintGene(7), new UintGene(8), new UintGene(9)
};
IGene[] expectedChild = new IGene[]
{
new UintGene(1), new UintGene(2), new UintGene(3),
new UintGene(8), new UintGene(7), new UintGene(6),
new UintGene(5), new UintGene(4), new UintGene(9)
};
int startPoint = 3, length = 5;
var swap = new InversionOperator();
swap.Run(parent, startPoint, length);
bool areChildrenEqual = true;
for (int i = 0; i < expectedChild.Length; ++i)
{
areChildrenEqual &= expectedChild[i].Equals(parent[i]);
}
Assert.AreEqual(true, areChildrenEqual);
}
public void InversionOperator_GenerateMutation_NullEntity()
{
InversionOperator op = new InversionOperator();
PrivateObject accessor = new PrivateObject(op);
Assert.Throws <ArgumentNullException>(() => accessor.Invoke("GenerateMutation", (GeneticEntity)null));
}
public void InversionOperator_GenerateMutation_NoMutation()
{
InversionOperator op = new InversionOperator
{
MutationRate = 0
};
PrivateObject accessor = new PrivateObject(op);
bool result = (bool)accessor.Invoke("GenerateMutation", new BinaryStringEntity());
Assert.False(result);
}
public void InversionOperator_Mutate()
{
GeneticAlgorithm algorithm = new MockGeneticAlgorithm
{
SelectionOperator = new MockSelectionOperator(),
PopulationSeed = new MockPopulation(),
FitnessEvaluator = new MockFitnessEvaluator(),
GeneticEntitySeed = new BinaryStringEntity
{
MinimumStartingLength = 4,
MaximumStartingLength = 4
},
MutationOperator = new InversionOperator
{
MutationRate = 1
}
};
algorithm.GeneticEntitySeed.Initialize(algorithm);
InversionOperator op = (InversionOperator)algorithm.MutationOperator;
op.Initialize(algorithm);
BinaryStringEntity entity = (BinaryStringEntity)algorithm.GeneticEntitySeed.CreateNewAndInitialize();
entity.Age = 10;
entity.Initialize(algorithm);
entity[0] = true;
entity[1] = true;
entity[2] = false;
entity[3] = true;
FakeRandomUtil randomUtil = new FakeRandomUtil();
RandomNumberService.Instance = randomUtil;
randomUtil.RandomValue = 1;
GeneticEntity mutant = op.Mutate(entity);
Assert.Equal("1011", mutant.Representation);
Assert.Equal(0, mutant.Age);
}
