public void Evaluate_DiffChromosomes_DiffFitness()
{
var target = new EqualityFitness();
var chromosome = new EquationChromosome(30, 4);
chromosome.ReplaceGene(0, new Gene(0));
chromosome.ReplaceGene(1, new Gene(7));
chromosome.ReplaceGene(2, new Gene(-43));
chromosome.ReplaceGene(3, new Gene(32));
var actual = target.Evaluate(chromosome);
Assert.Less(actual, 0);
chromosome = new EquationChromosome(30, 4);
chromosome.ReplaceGene(0, new Gene(17));
chromosome.ReplaceGene(1, new Gene(7));
chromosome.ReplaceGene(2, new Gene(-43));
chromosome.ReplaceGene(3, new Gene(32));
actual = target.Evaluate(chromosome);
Assert.AreEqual(0, actual);
}
public void Evaluate_DiffChromosomes_DiffFitness()
{
// Equation A + B = 3.
var target = new EquationSolverFitness(
3,
(genes) =>
{
return(genes.Select(g => (int)g.Value).Sum());
});
var chromosome = new EquationChromosome(3, 2);
chromosome.ReplaceGene(0, new Gene(1));
chromosome.ReplaceGene(1, new Gene(2));
var actual = target.Evaluate(chromosome);
Assert.AreEqual(0, actual);
chromosome.ReplaceGene(1, new Gene(3));
actual = target.Evaluate(chromosome);
Assert.AreEqual(-1, actual);
}