public override void MutateGeneValueThrowsExceptionForWrongType()
{
IDomain domain = new CategoricalDomain <int>(new List <int> {
1
});
Assert.Throws <ArgumentOutOfRangeException>(() => domain.MutateGeneValue(new Allele <double>(1.0), CategoricalDomainTest.dummyVariancePercentage));
}
public void MutateDoesNotDepartFromUniformDistribution()
{
// Set up categorical domain with integer values 0 - 3.
var possibleValues = new List <int> {
0, 1, 2, 3
};
CategoricalDomain <int> domain = new CategoricalDomain <int>(possibleValues);
// Remember which values were generated for a lot of iterations.
double[] observations = new double[CategoricalDomainTest.triesForRandomTests];
Allele <int> geneValue = new Allele <int>(1);
for (int i = 0; i < CategoricalDomainTest.triesForRandomTests; i++)
{
observations[i] = (int)domain.MutateGeneValue(geneValue, CategoricalDomainTest.dummyVariancePercentage).GetValue();
}
// Apply the Chi-Squared test.
ChiSquareTest uniformTest = new ChiSquareTest(observations, new UniformDiscreteDistribution(0, 3));
Assert.False(
uniformTest.Significant,
$"Mutation was found to not produce a uniform distribution by the Chi-Squared test with significance level {uniformTest.Size}.");
}
