public IReinsertion Uniform()
{
var target = new UniformReinsertion();
target.SelectChromosomes(
new Population(5, 5, new TspChromosome(_numberOfCities)),
new List <IChromosome>
{
new TspChromosome(_numberOfCities)
},
_parents);
return(target);
}
public void SelectChromosomes_OffspringSizeEqualsZero_Exception()
{
var target = new UniformReinsertion();
var population = new Population(6, 8, MockRepository.GenerateStub <ChromosomeBase> (2));
var offspring = new List <IChromosome> ();
var parents = new List <IChromosome> ()
{
MockRepository.GenerateStub <ChromosomeBase> (5),
MockRepository.GenerateStub <ChromosomeBase> (6),
MockRepository.GenerateStub <ChromosomeBase> (7),
MockRepository.GenerateStub <ChromosomeBase> (8)
};
ExceptionAssert.IsThrowing(new ReinsertionException(target, "The minimum size of the offspring is 1."), () =>
{
target.SelectChromosomes(population, offspring, parents);
});
}
public void SelectChromosomes_OffspringSizeEqualsZero_Exception()
{
var target = new UniformReinsertion();
var population = new Population(6, 8, Substitute.For <ChromosomeBase>(2));
var offspring = new List <IChromosome>();
var parents = new List <IChromosome>()
{
Substitute.For <ChromosomeBase> (5),
Substitute.For <ChromosomeBase> (6),
Substitute.For <ChromosomeBase> (7),
Substitute.For <ChromosomeBase> (8)
};
Assert.Catch <ReinsertionException>(() =>
{
target.SelectChromosomes(population, offspring, parents);
}, "The minimum size of the offspring is 1.");
}
public void SelectChromosomes_offspringSizeLowerThanMinSize_Selectoffspring()
{
var target = new UniformReinsertion();
var population = new Population(6, 8, MockRepository.GenerateStub <ChromosomeBase> (2));
var offspring = new List <IChromosome> ()
{
MockRepository.GenerateStub <ChromosomeBase> (2),
MockRepository.GenerateStub <ChromosomeBase> (2),
MockRepository.GenerateStub <ChromosomeBase> (3),
MockRepository.GenerateStub <ChromosomeBase> (4)
};
var parents = new List <IChromosome> ()
{
MockRepository.GenerateStub <ChromosomeBase> (5),
MockRepository.GenerateStub <ChromosomeBase> (6),
MockRepository.GenerateStub <ChromosomeBase> (7),
MockRepository.GenerateStub <ChromosomeBase> (8)
};
var rnd = MockRepository.GenerateMock <IRandomization> ();
rnd.Expect(r => r.GetInt(0, 4)).Return(1);
rnd.Expect(r => r.GetInt(0, 5)).Return(3);
RandomizationProvider.Current = rnd;
var selected = target.SelectChromosomes(population, offspring, parents);
Assert.AreEqual(6, selected.Count);
Assert.AreEqual(2, selected [0].Length);
Assert.AreEqual(2, selected [1].Length);
Assert.AreEqual(3, selected [2].Length);
Assert.AreEqual(4, selected [3].Length);
Assert.AreEqual(2, selected [4].Length);
Assert.AreEqual(4, selected [5].Length);
}
public void SelectChromosomes_offspringSizeLowerThanMinSize_Selectoffspring()
{
var target = new UniformReinsertion();
var population = new Population(6, 8, Substitute.For <ChromosomeBase>(2));
var offspring = new List <IChromosome>()
{
Substitute.For <ChromosomeBase> (2),
Substitute.For <ChromosomeBase> (2),
Substitute.For <ChromosomeBase> (3),
Substitute.For <ChromosomeBase> (4)
};
var parents = new List <IChromosome>()
{
Substitute.For <ChromosomeBase> (5),
Substitute.For <ChromosomeBase> (6),
Substitute.For <ChromosomeBase> (7),
Substitute.For <ChromosomeBase> (8)
};
var rnd = Substitute.For <IRandomization>();
rnd.GetInt(0, 4).Returns(1);
rnd.GetInt(0, 5).Returns(3);
RandomizationProvider.Current = rnd;
var selected = target.SelectChromosomes(population, offspring, parents);
Assert.AreEqual(6, selected.Count);
Assert.AreEqual(2, selected[0].Length);
Assert.AreEqual(2, selected[1].Length);
Assert.AreEqual(3, selected[2].Length);
Assert.AreEqual(4, selected[3].Length);
Assert.AreEqual(2, selected[4].Length);
Assert.AreEqual(4, selected[5].Length);
}