public void WhenInitialiserIsOverloaded_RequestReturnsOverloadedInitialiser()
{
NewByteBasedGenomeInitialiser newByteInitialiser = new NewByteBasedGenomeInitialiser();
InitialiserProvider.AddInitialiser(newByteInitialiser);
var initialiser = InitialiserProvider.GetInitialiser <byte> ();
Assert.AreEqual(newByteInitialiser.Name, initialiser.Name);
}
public void WhenMutationIsSetToVariance_Double_CheckedOverflow_MutationLessThanMinFloorAtMin()
{
var population = new Population <double> ();
(InitialiserContextProvider.GetContext <double> () as DoubleBasedGenomeInitialiserContext).Min = 10d;
(InitialiserContextProvider.GetContext <double> () as DoubleBasedGenomeInitialiserContext).Max = 110d;
DoubleBasedSingleInitialiser initialiser = new DoubleBasedSingleInitialiser(
(InitialiserContextProvider.GetContext <double> () as DoubleBasedGenomeInitialiserContext).Min);
InitialiserProvider.AddInitialiser(initialiser);
var genomeLength = 100000;
population.Initialise(1, genomeLength);
ConfigurationProvider.Mutation.AllowUncheckedVariance = false;
ConfigurationProvider.Mutation.ChanceOfMutation = 1;
ConfigurationProvider.Mutation.ContextMutationVariance = .1;
ConfigurationProvider.Mutation.MutationMethod = MutationConfiguration.MutationStyle.Variance;
Mutator <double> mutator = MutationProvider.GetMutator <double> ();
mutator.Mutate(population);
int underflowCount = 0;
population [0].Code.ForEach(i => {
underflowCount +=
i == (InitialiserContextProvider.GetContext <double> () as DoubleBasedGenomeInitialiserContext).Min ? 1 : 0;
});
double acceptableMin = (double)genomeLength * ((double)4.5d / 10);
double acceptableMax = (double)genomeLength * ((double)5.5d / 10);
Assert.LessOrEqual(underflowCount, acceptableMax);
Assert.GreaterOrEqual(underflowCount, acceptableMin);
}
public void WhenMutationIsSetToVariance_Byte_UncheckedOverflow_MutationLessThanMinUnderflowToMax()
{
Population <byte> population = new Population <byte> ();
(InitialiserContextProvider.GetContext <byte> () as ByteBasedGenomeInitialiserContext).Min = 0;
(InitialiserContextProvider.GetContext <byte> () as ByteBasedGenomeInitialiserContext).Max = 100;
ByteBasedSingleInitialiser initialiser = new ByteBasedSingleInitialiser(
(InitialiserContextProvider.GetContext <byte> () as ByteBasedGenomeInitialiserContext).Min);
InitialiserProvider.AddInitialiser(initialiser);
var genomeLength = 1000;
population.Initialise(1, genomeLength);
ConfigurationProvider.Mutation.AllowUncheckedVariance = true;
ConfigurationProvider.Mutation.ChanceOfMutation = 1;
ConfigurationProvider.Mutation.ContextMutationVariance = .1;
ConfigurationProvider.Mutation.MutationMethod = MutationConfiguration.MutationStyle.Variance;
Mutator <byte> mutator = MutationProvider.GetMutator <byte> ();
mutator.Mutate(population);
int overflowCount = 0;
population [0].Code.ForEach(i => {
overflowCount += i >= 90 ? 1 : 0;
});
double acceptableMin = (double)genomeLength * ((double)4.5d / 10);
double acceptableMax = (double)genomeLength * ((double)5.5d / 10);
Assert.LessOrEqual(overflowCount, acceptableMax);
Assert.GreaterOrEqual(overflowCount, acceptableMin);
}
