public void Cross_ParentsWithTwoGenes_Cross()
{
var target = new OnePointCrossover(0);
var chromosome1 = MockRepository.GenerateStub<ChromosomeBase>(2);
chromosome1.ReplaceGenes(0, new Gene[]
{
new Gene(1),
new Gene(2)
});
chromosome1.Expect(c => c.CreateNew()).Return(MockRepository.GenerateStub<ChromosomeBase>(2));
var chromosome2 = MockRepository.GenerateStub<ChromosomeBase>(2);
chromosome2.ReplaceGenes(0, new Gene[]
{
new Gene(3),
new Gene(4)
});
chromosome2.Expect(c => c.CreateNew()).Return(MockRepository.GenerateStub<ChromosomeBase>(2));
var actual = target.Cross(new List<IChromosome>() { chromosome1, chromosome2 });
Assert.AreEqual(2, actual.Count);
Assert.AreEqual(2, actual[0].Length);
Assert.AreEqual(2, actual[1].Length);
Assert.AreEqual(1, actual[0].GetGene(0).Value);
Assert.AreEqual(4, actual[0].GetGene(1).Value);
Assert.AreEqual(3, actual[1].GetGene(0).Value);
Assert.AreEqual(2, actual[1].GetGene(1).Value);
}
public void Cross_LessGenesThenSwapPoint_Exception()
{
var target = new OnePointCrossover(1);
var chromosome1 = MockRepository.GenerateStub<ChromosomeBase>(2);
var chromosome2 = MockRepository.GenerateStub<ChromosomeBase>(2);
ExceptionAssert.IsThrowing(new ArgumentOutOfRangeException("parents", "The swap point index is 1, but there is only 2 genes. The swap should result at least one gene to each side."), () =>
{
target.Cross(new List<IChromosome>() {
chromosome1,
chromosome2
});
});
}