public void Cross_ParentWithNoOrderedGenes_Exception()
{
var target = new CycleCrossover();
var chromosome1 = MockRepository.GenerateStub<ChromosomeBase>(10);
chromosome1.ReplaceGenes(0, new Gene[] {
new Gene(8),
new Gene(4),
new Gene(7),
new Gene(3),
new Gene(6),
new Gene(2),
new Gene(5),
new Gene(1),
new Gene(9),
new Gene(0)
});
chromosome1.Expect(c => c.CreateNew()).Return(MockRepository.GenerateStub<ChromosomeBase>(10));
var chromosome2 = MockRepository.GenerateStub<ChromosomeBase>(10);
chromosome2.ReplaceGenes(0, new Gene[]
{
new Gene(0),
new Gene(1),
new Gene(2),
new Gene(3),
new Gene(5),
new Gene(5),
new Gene(6),
new Gene(7),
new Gene(8),
new Gene(9),
});
chromosome2.Expect(c => c.CreateNew()).Return(MockRepository.GenerateStub<ChromosomeBase>(10));
ExceptionAssert.IsThrowing(new CrossoverException(target, "The Cycle Crossover (CX) can be only used with ordered chromosomes. The specified chromosome has repeated genes."), () =>
{
target.Cross(new List<IChromosome>() { chromosome1, chromosome2 });
});
}
public void Cross_ParentsWith10Genes_Cross()
{
var target = new CycleCrossover();
// 8 4 7 3 6 2 5 1 9 0
var chromosome1 = MockRepository.GenerateStub<ChromosomeBase>(10);
chromosome1.ReplaceGenes(0, new Gene[] {
new Gene(8),
new Gene(4),
new Gene(7),
new Gene(3),
new Gene(6),
new Gene(2),
new Gene(5),
new Gene(1),
new Gene(9),
new Gene(0)
});
chromosome1.Expect(c => c.CreateNew()).Return(MockRepository.GenerateStub<ChromosomeBase>(10));
// 0 1 2 3 4 5 6 7 8 9
var chromosome2 = MockRepository.GenerateStub<ChromosomeBase>(10);
chromosome2.ReplaceGenes(0, new Gene[]
{
new Gene(0),
new Gene(1),
new Gene(2),
new Gene(3),
new Gene(4),
new Gene(5),
new Gene(6),
new Gene(7),
new Gene(8),
new Gene(9),
});
chromosome2.Expect(c => c.CreateNew()).Return(MockRepository.GenerateStub<ChromosomeBase>(10));
// Child one: 8 1 2 3 4 5 6 7 9 0
// Child two: 0 4 7 3 6 2 5 1 8 9
var rnd = MockRepository.GenerateMock<IRandomization>();
rnd.Expect(r => r.GetUniqueInts(2, 0, 10)).Return(new int[] { 7, 3 });
RandomizationProvider.Current = rnd;
IList<IChromosome> actual = null; ;
actual = target.Cross(new List<IChromosome>() { chromosome1, chromosome2 });
Assert.AreEqual(2, actual.Count);
Assert.AreEqual(10, actual[0].Length);
Assert.AreEqual(10, actual[1].Length);
Assert.AreEqual(10, actual[0].GetGenes().Distinct().Count());
Assert.AreEqual(10, actual[1].GetGenes().Distinct().Count());
Assert.AreEqual(8, actual[0].GetGene(0).Value);
Assert.AreEqual(1, actual[0].GetGene(1).Value);
Assert.AreEqual(2, actual[0].GetGene(2).Value);
Assert.AreEqual(3, actual[0].GetGene(3).Value);
Assert.AreEqual(4, actual[0].GetGene(4).Value);
Assert.AreEqual(5, actual[0].GetGene(5).Value);
Assert.AreEqual(6, actual[0].GetGene(6).Value);
Assert.AreEqual(7, actual[0].GetGene(7).Value);
Assert.AreEqual(9, actual[0].GetGene(8).Value);
Assert.AreEqual(0, actual[0].GetGene(9).Value);
Assert.AreEqual(0, actual[1].GetGene(0).Value);
Assert.AreEqual(4, actual[1].GetGene(1).Value);
Assert.AreEqual(7, actual[1].GetGene(2).Value);
Assert.AreEqual(3, actual[1].GetGene(3).Value);
Assert.AreEqual(6, actual[1].GetGene(4).Value);
Assert.AreEqual(2, actual[1].GetGene(5).Value);
Assert.AreEqual(5, actual[1].GetGene(6).Value);
Assert.AreEqual(1, actual[1].GetGene(7).Value);
Assert.AreEqual(8, actual[1].GetGene(8).Value);
Assert.AreEqual(9, actual[1].GetGene(9).Value);
}
public void Cross_ParentsWith5ThreeCyclesGenes_Cross()
{
var target = new CycleCrossover();
// 8 4 6 7 3
var chromosome1 = MockRepository.GenerateStub<ChromosomeBase>(5);
chromosome1.ReplaceGenes(0, new Gene[] {
new Gene(8),
new Gene(4),
new Gene(6),
new Gene(7),
new Gene(3)
});
chromosome1.Expect(c => c.CreateNew()).Return(MockRepository.GenerateStub<ChromosomeBase>(5));
// 4 3 6 7 8
var chromosome2 = MockRepository.GenerateStub<ChromosomeBase>(5);
chromosome2.ReplaceGenes(0, new Gene[]
{
new Gene(4),
new Gene(3),
new Gene(6),
new Gene(7),
new Gene(8)
});
chromosome2.Expect(c => c.CreateNew()).Return(MockRepository.GenerateStub<ChromosomeBase>(5));
// Cycle 1 indexes: 0 1 4
// Cycle 2 indexes: 2
// Cycle 3 indexes: 3
// Child one: 8 4 6 7 3
// Child two: 4 3 6 7 8
var rnd = MockRepository.GenerateMock<IRandomization>();
rnd.Expect(r => r.GetUniqueInts(2, 0, 10)).Return(new int[] { 7, 3 });
RandomizationProvider.Current = rnd;
IList<IChromosome> actual = null; ;
actual = target.Cross(new List<IChromosome>() { chromosome1, chromosome2 });
Assert.AreEqual(2, actual.Count);
Assert.AreEqual(5, actual[0].Length);
Assert.AreEqual(5, actual[1].Length);
Assert.AreEqual(5, actual[0].GetGenes().Distinct().Count());
Assert.AreEqual(5, actual[1].GetGenes().Distinct().Count());
Assert.AreEqual(8, actual[0].GetGene(0).Value);
Assert.AreEqual(4, actual[0].GetGene(1).Value);
Assert.AreEqual(6, actual[0].GetGene(2).Value);
Assert.AreEqual(7, actual[0].GetGene(3).Value);
Assert.AreEqual(3, actual[0].GetGene(4).Value);
Assert.AreEqual(4, actual[1].GetGene(0).Value);
Assert.AreEqual(3, actual[1].GetGene(1).Value);
Assert.AreEqual(6, actual[1].GetGene(2).Value);
Assert.AreEqual(7, actual[1].GetGene(3).Value);
Assert.AreEqual(8, actual[1].GetGene(4).Value);
}