public void SinglePointCrossoverCrossTest()
{
SinglePointCrossover_Accessor target = new SinglePointCrossover_Accessor(new PrivateObject(typeof(SinglePointCrossover)));
ItemArray <BinaryVector> parents;
TestRandom random = new TestRandom();
bool exceptionFired;
// The following test checks if there is an exception when there are more than 2 parents
random.Reset();
parents = new ItemArray <BinaryVector>(new BinaryVector[] { new BinaryVector(5), new BinaryVector(6), new BinaryVector(4) });
exceptionFired = false;
try {
BinaryVector actual;
actual = target.Cross(random, parents);
} catch (ArgumentException) {
exceptionFired = true;
}
Assert.IsTrue(exceptionFired);
// The following test checks if there is an exception when there are less than 2 parents
random.Reset();
parents = new ItemArray <BinaryVector>(new BinaryVector[] { new BinaryVector(4) });
exceptionFired = false;
try {
BinaryVector actual;
actual = target.Cross(random, parents);
} catch (ArgumentException) {
exceptionFired = true;
}
Assert.IsTrue(exceptionFired);
}
public void SinglePointCrossoverCrossTest()
{
var target = new PrivateObject(typeof(SinglePointCrossover));
ItemArray <IntegerVector> parents;
TestRandom random = new TestRandom();
bool exceptionFired;
// The following test checks if there is an exception when there are more than 2 parents
random.Reset();
parents = new ItemArray <IntegerVector>(new IntegerVector[] { new IntegerVector(5), new IntegerVector(6), new IntegerVector(4) });
exceptionFired = false;
try {
IntegerVector actual;
actual = (IntegerVector)target.Invoke("Cross", random, parents);
}
catch (System.ArgumentException) {
exceptionFired = true;
}
Assert.IsTrue(exceptionFired);
// The following test checks if there is an exception when there are less than 2 parents
random.Reset();
parents = new ItemArray <IntegerVector>(new IntegerVector[] { new IntegerVector(4) });
exceptionFired = false;
try {
IntegerVector actual;
actual = (IntegerVector)target.Invoke("Cross", random, parents);
}
catch (System.ArgumentException) {
exceptionFired = true;
}
Assert.IsTrue(exceptionFired);
}
public void PolynomialOnePositionManipulatorApplyTest()
{
TestRandom random = new TestRandom();
RealVector parent, expected;
DoubleValue contiguity, maxManipulation;
bool exceptionFired;
// The following test is not based on published examples
random.Reset();
random.IntNumbers = new int[] { 3 };
random.DoubleNumbers = new double[] { 0.2 };
parent = new RealVector(new double[] { 0.2, 0.2, 0.3, 0.5, 0.1 });
expected = new RealVector(new double[] { 0.2, 0.2, 0.3, 0.1261980542102, 0.1 });
contiguity = new DoubleValue(0.2);
maxManipulation = new DoubleValue(0.7);
PolynomialOnePositionManipulator.Apply(random, parent, contiguity, maxManipulation);
Assert.IsTrue(Auxiliary.RealVectorIsAlmostEqualByPosition(expected, parent));
// The following test is not based on published examples
exceptionFired = false;
random.Reset();
random.IntNumbers = new int[] { 3 };
random.DoubleNumbers = new double[] { 0.2 };
parent = new RealVector(new double[] { 0.2, 0.2, 0.3, 0.5, 0.1 });
contiguity = new DoubleValue(-1); //Contiguity value < 0
maxManipulation = new DoubleValue(0.2);
try {
PolynomialOnePositionManipulator.Apply(random, parent, contiguity, maxManipulation);
} catch (System.ArgumentException) {
exceptionFired = true;
}
Assert.IsTrue(exceptionFired);
}
public void CyclicCrossover2ApplyTest()
{
TestRandom random = new TestRandom();
Permutation parent1, parent2, expected, actual;
// The following test is based on an example from Affenzeller, M. et al. 2009. Genetic Algorithms and Genetic Programming - Modern Concepts and Practical Applications. CRC Press. pp. 134.
random.Reset();
random.IntNumbers = new int[] { 0 };
parent1 = new Permutation(PermutationTypes.RelativeUndirected, new int[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 });
Assert.IsTrue(parent1.Validate());
parent2 = new Permutation(PermutationTypes.RelativeUndirected, new int[] { 2, 5, 6, 0, 7, 1, 3, 8, 4, 9 });
Assert.IsTrue(parent2.Validate());
expected = new Permutation(PermutationTypes.RelativeUndirected, new int[] { 0, 5, 2, 3, 7, 1, 6, 8, 4, 9 });
Assert.IsTrue(expected.Validate());
actual = CyclicCrossover2.Apply(random, parent1, parent2);
Assert.IsTrue(actual.Validate());
Assert.IsTrue(Auxiliary.PermutationIsEqualByPosition(expected, actual));
// perform a test when the two permutations are of unequal length
random.Reset();
bool exceptionFired = false;
try {
CyclicCrossover.Apply(random, new Permutation(PermutationTypes.RelativeUndirected, 8), new Permutation(PermutationTypes.RelativeUndirected, 6));
}
catch (System.ArgumentException) {
exceptionFired = true;
}
Assert.IsTrue(exceptionFired);
}
public void LocalCrossoverApplyTest()
{
TestRandom random = new TestRandom();
RealVector parent1, parent2, expected, actual;
bool exceptionFired;
// The following test is not based on published examples
random.Reset();
random.DoubleNumbers = new double[] { 0.3, 0.1, 0.2, 0.4, 0.23 };
parent1 = new RealVector(new double[] { 0.2, 0.2, 0.3, 0.5, 0.1 });
parent2 = new RealVector(new double[] { 0.4, 0.1, 0.3, 0.2, 0.8 });
expected = new RealVector(new double[] { 0.34, 0.11, 0.3, 0.32, 0.639 });
actual = LocalCrossover.Apply(random, parent1, parent2);
Assert.IsTrue(Auxiliary.RealVectorIsAlmostEqualByPosition(actual, expected));
// The following test is not based on published examples
random.Reset();
random.DoubleNumbers = new double[] { 0.3, 0.1, 0.2, 0.4, 0.23, 0.5 };
parent1 = new RealVector(new double[] { 0.2, 0.2, 0.3, 0.5, 0.1, 0.9 }); // this parent is longer
parent2 = new RealVector(new double[] { 0.4, 0.1, 0.3, 0.2, 0.8 });
exceptionFired = false;
try {
actual = LocalCrossover.Apply(random, parent1, parent2);
}
catch (System.ArgumentException) {
exceptionFired = true;
}
Assert.IsTrue(exceptionFired);
}
public void DiscreteCrossoverApplyTest()
{
TestRandom random = new TestRandom();
RealVector parent1, parent2, expected, actual;
ItemArray <RealVector> parents;
bool exceptionFired;
// The following test is not based on published examples
random.Reset();
random.IntNumbers = new int[] { 0, 0, 1, 0, 1 };
parent1 = new RealVector(new double[] { 0.2, 0.2, 0.3, 0.5, 0.1 });
parent2 = new RealVector(new double[] { 0.4, 0.1, 0.3, 0.2, 0.8 });
parents = new ItemArray <RealVector>(new RealVector[] { parent1, parent2 });
expected = new RealVector(new double[] { 0.2, 0.2, 0.3, 0.5, 0.8 });
actual = DiscreteCrossover.Apply(random, parents);
Assert.IsTrue(Auxiliary.RealVectorIsAlmostEqualByPosition(actual, expected));
// The following test is not based on published examples
random.Reset();
random.IntNumbers = new int[] { 0, 0, 1, 0, 1, 0 };
parent1 = new RealVector(new double[] { 0.2, 0.2, 0.3, 0.5, 0.1, 0.9 }); // this parent is longer
parent2 = new RealVector(new double[] { 0.4, 0.1, 0.3, 0.2, 0.8 });
parents = new ItemArray <RealVector>(new RealVector[] { parent1, parent2 });
exceptionFired = false;
try {
actual = DiscreteCrossover.Apply(random, parents);
}
catch (System.ArgumentException) {
exceptionFired = true;
}
Assert.IsTrue(exceptionFired);
}
public void DiscreteCrossoverApplyTest()
{
TestRandom random = new TestRandom();
IntegerVector parent1, parent2, expected, actual;
bool exceptionFired;
// The following test is not based on published examples
random.Reset();
random.IntNumbers = new int[] { 0, 0, 1, 0, 1 };
parent1 = new IntegerVector(new int[] { 2, 2, 3, 5, 1 });
parent2 = new IntegerVector(new int[] { 4, 1, 3, 2, 8 });
expected = new IntegerVector(new int[] { 2, 2, 3, 5, 8 });
actual = DiscreteCrossover.Apply(random, new ItemArray <IntegerVector>(new IntegerVector[] { parent1, parent2 }));
Assert.IsTrue(Auxiliary.IntegerVectorIsEqualByPosition(actual, expected));
// The following test is not based on published examples
random.Reset();
random.IntNumbers = new int[] { 0, 0, 1, 0, 1 };
parent1 = new IntegerVector(new int[] { 2, 2, 3, 5, 1, 9 }); // this parent is longer
parent2 = new IntegerVector(new int[] { 4, 1, 3, 2, 8 });
exceptionFired = false;
try {
actual = DiscreteCrossover.Apply(random, new ItemArray <IntegerVector>(new IntegerVector[] { parent1, parent2 }));
}
catch (System.ArgumentException) {
exceptionFired = true;
}
Assert.IsTrue(exceptionFired);
}
public void PolynomialAllPositionManipulatorApplyTest()
{
TestRandom random = new TestRandom();
RealVector parent, expected;
DoubleValue contiguity, maxManipulation;
bool exceptionFired;
// The following test is not based on published examples
random.Reset();
random.DoubleNumbers = new double[] { 0.2, 0.7, 0.8, 0.01, 0.1 };
parent = new RealVector(new double[] { 0.2, 0.2, 0.3, 0.5, 0.1 });
expected = new RealVector(new double[] { 0.120213215256006, 0.249415354697564, 0.379786784743994, 0.322759240811056, -0.0182075293954083 });
contiguity = new DoubleValue(0.8);
maxManipulation = new DoubleValue(0.2);
PolynomialAllPositionManipulator.Apply(random, parent, contiguity, maxManipulation);
Assert.IsTrue(Auxiliary.RealVectorIsAlmostEqualByPosition(expected, parent));
// The following test is not based on published examples
exceptionFired = false;
random.Reset();
random.DoubleNumbers = new double[] { 0.2, 0.7, 0.8, 0.01, 0.1 };
parent = new RealVector(new double[] { 0.2, 0.2, 0.3, 0.5, 0.1 });
contiguity = new DoubleValue(-1); //Contiguity value < 0
maxManipulation = new DoubleValue(0.2);
try {
PolynomialAllPositionManipulator.Apply(random, parent, contiguity, maxManipulation);
} catch (System.ArgumentException) {
exceptionFired = true;
}
Assert.IsTrue(exceptionFired);
}
public void PositionBasedCrossoverApplyTest()
{
TestRandom random = new TestRandom();
Permutation parent1, parent2, expected, actual;
// The following test is based on an example from Larranaga, 1999. Genetic Algorithms for the Traveling Salesman Problem.
random.Reset();
random.IntNumbers = new int[] { 3, 1, 2, 5 };
parent1 = new Permutation(PermutationTypes.RelativeUndirected, new int[] { 0, 1, 2, 3, 4, 5, 6, 7 });
Assert.IsTrue(parent1.Validate());
parent2 = new Permutation(PermutationTypes.RelativeUndirected, new int[] { 1, 3, 5, 7, 6, 4, 2, 0 });
Assert.IsTrue(parent2.Validate());
expected = new Permutation(PermutationTypes.RelativeUndirected, new int[] { 0, 3, 5, 1, 2, 4, 6, 7 });
Assert.IsTrue(expected.Validate());
actual = PositionBasedCrossover.Apply(random, parent1, parent2);
Assert.IsTrue(actual.Validate());
Assert.IsTrue(Auxiliary.PermutationIsEqualByPosition(expected, actual));
// perform a test when two permutations are of unequal length
random.Reset();
bool exceptionFired = false;
try {
PositionBasedCrossover.Apply(random, new Permutation(PermutationTypes.RelativeUndirected, 8), new Permutation(PermutationTypes.RelativeUndirected, 6));
}
catch (System.ArgumentException) {
exceptionFired = true;
}
Assert.IsTrue(exceptionFired);
}
public void CyclicCrossoverApplyTest()
{
TestRandom random = new TestRandom();
Permutation parent1, parent2, expected, actual;
// The following test is based on an example from Larranaga, P. et al. 1999. Genetic Algorithms for the Travelling Salesman Problem: A Review of Representations and Operators. Artificial Intelligence Review, 13
random.Reset();
random.DoubleNumbers = new double[] { 0.9 };
parent1 = new Permutation(PermutationTypes.RelativeUndirected, new int[] { 0, 1, 2, 3, 4, 5, 6, 7 });
Assert.IsTrue(parent1.Validate());
parent2 = new Permutation(PermutationTypes.RelativeUndirected, new int[] { 1, 3, 5, 7, 6, 4, 2, 0 });
Assert.IsTrue(parent2.Validate());
expected = new Permutation(PermutationTypes.RelativeUndirected, new int[] { 0, 1, 5, 3, 6, 4, 2, 7 });
Assert.IsTrue(expected.Validate());
actual = CyclicCrossover.Apply(random, parent1, parent2);
Assert.IsTrue(actual.Validate());
Assert.IsTrue(Auxiliary.PermutationIsEqualByPosition(expected, actual));
// perform a test when the two permutations are of unequal length
random.Reset();
bool exceptionFired = false;
try {
CyclicCrossover.Apply(random, new Permutation(PermutationTypes.RelativeUndirected, 8), new Permutation(PermutationTypes.RelativeUndirected, 6));
}
catch (System.ArgumentException) {
exceptionFired = true;
}
Assert.IsTrue(exceptionFired);
}
public void EdgeRecombinationCrossoverApplyTest()
{
TestRandom random = new TestRandom();
Permutation parent1, parent2, expected, actual;
// The following test is based on an example from Eiben, A.E. and Smith, J.E. 2003. Introduction to Evolutionary Computation. Natural Computing Series, Springer-Verlag Berlin Heidelberg, pp. 54-55
random.Reset();
random.IntNumbers = new int[] { 0 };
random.DoubleNumbers = new double[] { 0.5, 0, 0, 0 };
parent1 = new Permutation(PermutationTypes.RelativeUndirected, new int[] { 0, 1, 2, 3, 4, 5, 6, 7, 8 });
Assert.IsTrue(parent1.Validate());
parent2 = new Permutation(PermutationTypes.RelativeUndirected, new int[] { 8, 2, 6, 7, 1, 5, 4, 0, 3 });
Assert.IsTrue(parent2.Validate());
expected = new Permutation(PermutationTypes.RelativeUndirected, new int[] { 0, 4, 5, 1, 7, 6, 2, 8, 3 });
Assert.IsTrue(expected.Validate());
actual = EdgeRecombinationCrossover.Apply(random, parent1, parent2);
Assert.IsTrue(actual.Validate());
Assert.IsTrue(Auxiliary.PermutationIsEqualByPosition(expected, actual));
// perform a test when the two permutations are of unequal length
random.Reset();
bool exceptionFired = false;
try {
EdgeRecombinationCrossover.Apply(random, new Permutation(PermutationTypes.RelativeUndirected, 8), new Permutation(PermutationTypes.RelativeUndirected, 6));
}
catch (System.ArgumentException) {
exceptionFired = true;
}
Assert.IsTrue(exceptionFired);
}
public void BlendAlphaCrossoverApplyTest()
{
TestRandom random = new TestRandom();
RealVector parent1, parent2, expected, actual;
DoubleValue alpha;
bool exceptionFired;
// The following test is not based on published examples
random.Reset();
random.DoubleNumbers = new double[] { 0.5, 0.5, 0.5, 0.5, 0.5 };
alpha = new DoubleValue(0.5);
parent1 = new RealVector(new double[] { 0.2, 0.2, 0.3, 0.5, 0.1 });
parent2 = new RealVector(new double[] { 0.4, 0.1, 0.3, 0.2, 0.8 });
expected = new RealVector(new double[] { 0.3, 0.15, 0.3, 0.35, 0.45 });
actual = BlendAlphaCrossover.Apply(random, parent1, parent2, alpha);
Assert.IsTrue(Auxiliary.RealVectorIsAlmostEqualByPosition(actual, expected));
// The following test is not based on published examples
random.Reset();
random.DoubleNumbers = new double[] { 0.25, 0.75, 0.25, 0.75, 0.25 };
alpha = new DoubleValue(0.25);
parent1 = new RealVector(new double[] { 0.2, 0.2, 0.3, 0.5, 0.1 });
parent2 = new RealVector(new double[] { 0.4, 0.1, 0.3, 0.2, 0.8 });
expected = new RealVector(new double[] { 0.225, 0.1875, 0.3, 0.4625, 0.1875 });
actual = BlendAlphaCrossover.Apply(random, parent1, parent2, alpha);
Assert.IsTrue(Auxiliary.RealVectorIsAlmostEqualByPosition(actual, expected));
// The following test is not based on published examples
random.Reset();
random.DoubleNumbers = new double[] { 0.25, 0.75, 0.25, 0.75, 0.25 };
alpha = new DoubleValue(-0.25); // negative values for alpha are not allowed
parent1 = new RealVector(new double[] { 0.2, 0.2, 0.3, 0.5, 0.1 });
parent2 = new RealVector(new double[] { 0.4, 0.1, 0.3, 0.2, 0.8 });
expected = new RealVector(new double[] { 0.225, 0.1875, 0.3, 0.4625, 0.1875 });
exceptionFired = false;
try {
actual = BlendAlphaCrossover.Apply(random, parent1, parent2, alpha);
}
catch (System.ArgumentException) {
exceptionFired = true;
}
Assert.IsTrue(exceptionFired);
// The following test is not based on published examples
random.Reset();
random.DoubleNumbers = new double[] { 0.25, 0.75, 0.25, 0.75, 0.25, .75 };
alpha = new DoubleValue(0.25);
parent1 = new RealVector(new double[] { 0.2, 0.2, 0.3, 0.5, 0.1, 0.9 }); // this parent is longer
parent2 = new RealVector(new double[] { 0.4, 0.1, 0.3, 0.2, 0.8 });
expected = new RealVector(new double[] { 0.225, 0.1875, 0.3, 0.4625, 0.1875 });
exceptionFired = false;
try {
actual = BlendAlphaCrossover.Apply(random, parent1, parent2, alpha);
}
catch (System.ArgumentException) {
exceptionFired = true;
}
Assert.IsTrue(exceptionFired);
}
public void CosaCrossoverApplyTest()
{
TestRandom random = new TestRandom();
Permutation parent1, parent2, expected, actual;
// The following test is based on an example from Wendt, O. 1994. COSA: COoperative Simulated Annealing - Integration von Genetischen Algorithmen und Simulated Annealing am Beispiel der Tourenplanung. Dissertation Thesis. IWI Frankfurt.
random.Reset();
random.IntNumbers = new int[] { 1 };
parent1 = new Permutation(PermutationTypes.RelativeUndirected, new int[] { 0, 1, 5, 2, 4, 3 });
Assert.IsTrue(parent1.Validate());
parent2 = new Permutation(PermutationTypes.RelativeUndirected, new int[] { 3, 0, 2, 1, 4, 5 });
Assert.IsTrue(parent2.Validate());
expected = new Permutation(PermutationTypes.RelativeUndirected, new int[] { 0, 1, 4, 2, 5, 3 });
Assert.IsTrue(expected.Validate());
actual = CosaCrossover.Apply(random, parent1, parent2);
Assert.IsTrue(actual.Validate());
Assert.IsTrue(Auxiliary.PermutationIsEqualByPosition(expected, actual));
// The following test is not based on published examples
random.Reset();
random.IntNumbers = new int[] { 4 };
parent1 = new Permutation(PermutationTypes.RelativeUndirected, new int[] { 0, 1, 2, 3, 4, 5, 6, 7 });
Assert.IsTrue(parent1.Validate());
parent2 = new Permutation(PermutationTypes.RelativeUndirected, new int[] { 1, 3, 5, 7, 6, 4, 2, 0 });
Assert.IsTrue(parent2.Validate());
expected = new Permutation(PermutationTypes.RelativeUndirected, new int[] { 7, 6, 5, 3, 4, 2, 1, 0 });
Assert.IsTrue(expected.Validate());
actual = CosaCrossover.Apply(random, parent1, parent2);
Assert.IsTrue(actual.Validate());
Assert.IsTrue(Auxiliary.PermutationIsEqualByPosition(expected, actual));
// The following test is not based on published examples
random.Reset();
random.IntNumbers = new int[] { 5 };
parent1 = new Permutation(PermutationTypes.RelativeUndirected, new int[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 });
Assert.IsTrue(parent1.Validate());
parent2 = new Permutation(PermutationTypes.RelativeUndirected, new int[] { 4, 3, 5, 1, 0, 9, 7, 2, 8, 6 });
Assert.IsTrue(parent2.Validate());
expected = new Permutation(PermutationTypes.RelativeUndirected, new int[] { 7, 6, 2, 3, 4, 5, 1, 0, 9, 8 });
Assert.IsTrue(expected.Validate());
actual = CosaCrossover.Apply(random, parent1, parent2);
Assert.IsTrue(actual.Validate());
Assert.IsTrue(Auxiliary.PermutationIsEqualByPosition(expected, actual));
// perform a test when the two permutations are of unequal length
random.Reset();
bool exceptionFired = false;
try {
CosaCrossover.Apply(random, new Permutation(PermutationTypes.RelativeUndirected, 8), new Permutation(PermutationTypes.RelativeUndirected, 6));
}
catch (System.ArgumentException) {
exceptionFired = true;
}
Assert.IsTrue(exceptionFired);
}
public void NPointCrossoverApplyTest()
{
TestRandom random = new TestRandom();
BinaryVector parent1, parent2, expected, actual;
IntValue n;
bool exceptionFired;
// The following test is based on Eiben, A.E. and Smith, J.E. 2003. Introduction to Evolutionary Computation. Natural Computing Series, Springer-Verlag Berlin Heidelberg, p. 48
random.Reset();
n = new IntValue(1);
random.IntNumbers = new int[] { 4 };
parent1 = new BinaryVector(new bool[] { false, false, false, false, true, false, false, false, false });
parent2 = new BinaryVector(new bool[] { true, true, false, true, false, false, false, false, true });
expected = new BinaryVector(new bool[] { false, false, false, false, false, false, false, false, true });
actual = NPointCrossover.Apply(random, parent1, parent2, n);
Assert.IsTrue(Auxiliary.BinaryVectorIsEqualByPosition(actual, expected));
// The following test is based on Eiben, A.E. and Smith, J.E. 2003. Introduction to Evolutionary Computation. Natural Computing Series, Springer-Verlag Berlin Heidelberg, p. 48
random.Reset();
n = new IntValue(2);
random.IntNumbers = new int[] { 4, 5 };
parent1 = new BinaryVector(new bool[] { false, false, false, false, true, false, false, false, false });
parent2 = new BinaryVector(new bool[] { true, true, false, true, false, false, false, false, true });
expected = new BinaryVector(new bool[] { false, false, false, false, false, false, false, false, false });
actual = NPointCrossover.Apply(random, parent1, parent2, n);
Assert.IsTrue(Auxiliary.BinaryVectorIsEqualByPosition(actual, expected));
// The following test is based on Eiben, A.E. and Smith, J.E. 2003. Introduction to Evolutionary Computation. Natural Computing Series, Springer-Verlag Berlin Heidelberg, p. 48
random.Reset();
n = new IntValue(2);
random.IntNumbers = new int[] { 4, 5 };
parent2 = new BinaryVector(new bool[] { false, false, false, false, true, false, false, false, false });
parent1 = new BinaryVector(new bool[] { true, true, false, true, false, false, false, false, true });
expected = new BinaryVector(new bool[] { true, true, false, true, true, false, false, false, true });
actual = NPointCrossover.Apply(random, parent1, parent2, n);
Assert.IsTrue(Auxiliary.BinaryVectorIsEqualByPosition(actual, expected));
// The following test is not based on any published examples
random.Reset();
random.IntNumbers = new int[] { 2 };
parent1 = new BinaryVector(new bool[] { false, true, true, false, false }); // this parent is longer
parent2 = new BinaryVector(new bool[] { false, true, true, false });
exceptionFired = false;
try {
actual = NPointCrossover.Apply(random, parent1, parent2, n);
}
catch (System.ArgumentException) {
exceptionFired = true;
}
Assert.IsTrue(exceptionFired);
}
public void SimulatedBinaryCrossoverApplyTest()
{
TestRandom random = new TestRandom();
RealVector parent1, parent2, expected, actual;
DoubleValue contiguity;
bool exceptionFired;
// The following test is not based on published examples
random.Reset();
random.DoubleNumbers = new double[] { 0.3, 0.9, 0.7, 0.2, 0.8, 0.1, 0.2, 0.3, 0.4, 0.8, 0.7 };
contiguity = new DoubleValue(0.3);
parent1 = new RealVector(new double[] { 0.2, 0.2, 0.3, 0.5, 0.1 });
parent2 = new RealVector(new double[] { 0.4, 0.1, 0.3, 0.2, 0.8 });
expected = new RealVector(new double[] { 0.644880972204315, 0.0488239539275703, 0.3, 0.5, 0.1 });
actual = SimulatedBinaryCrossover.Apply(random, parent1, parent2, contiguity);
Assert.IsTrue(Auxiliary.RealVectorIsAlmostEqualByPosition(actual, expected));
// The following test is not based on published examples
random.Reset();
random.DoubleNumbers = new double[] { 0.3, 0.9, 0.7, 0.2, 0.8, 0.1, 0.2, 0.3, 0.4, 0.8, 0.7 };
contiguity = new DoubleValue(0.3);
parent1 = new RealVector(new double[] { 0.2, 0.2, 0.3, 0.5, 0.1, 0.9 }); // this parent is longer
parent2 = new RealVector(new double[] { 0.4, 0.1, 0.3, 0.2, 0.8 });
exceptionFired = false;
try {
actual = SimulatedBinaryCrossover.Apply(random, parent1, parent2, contiguity);
}
catch (System.ArgumentException) {
exceptionFired = true;
}
Assert.IsTrue(exceptionFired);
// The following test is not based on published examples
random.Reset();
random.DoubleNumbers = new double[] { 0.3, 0.9, 0.7, 0.2, 0.8, 0.1, 0.2, 0.3, 0.4, 0.8, 0.7 };
contiguity = new DoubleValue(-0.3); // contiguity < 0
parent1 = new RealVector(new double[] { 0.2, 0.2, 0.3, 0.5, 0.1 });
parent2 = new RealVector(new double[] { 0.4, 0.1, 0.3, 0.2, 0.8 });
exceptionFired = false;
try {
actual = SimulatedBinaryCrossover.Apply(random, parent1, parent2, contiguity);
}
catch (System.ArgumentException) {
exceptionFired = true;
}
Assert.IsTrue(exceptionFired);
}
public void MichalewiczNonUniformOnePositionManipulatorApplyTest()
{
TestRandom random = new TestRandom();
RealVector parent, expected;
DoubleValue generationsDependency;
DoubleMatrix bounds;
IntValue currentGeneration, maximumGenerations;
bool exceptionFired;
// The following test is not based on published examples
random.Reset();
random.IntNumbers = new int[] { 3 };
random.DoubleNumbers = new double[] { 0.2, 0.7 };
parent = new RealVector(new double[] { 0.2, 0.2, 0.3, 0.5, 0.1 });
expected = new RealVector(new double[] { 0.2, 0.2, 0.3, 0.34, 0.1 });
bounds = new DoubleMatrix(new double[, ] {
{ 0.3, 0.7 }
});
generationsDependency = new DoubleValue(0.1);
currentGeneration = new IntValue(1);
maximumGenerations = new IntValue(4);
MichalewiczNonUniformOnePositionManipulator.Apply(random, parent, bounds, currentGeneration, maximumGenerations, generationsDependency);
Assert.IsTrue(Auxiliary.RealVectorIsAlmostEqualByPosition(expected, parent));
// The following test is not based on published examples
exceptionFired = false;
random.Reset();
random.IntNumbers = new int[] { 3 };
random.DoubleNumbers = new double[] { 0.2, 0.7 };
parent = new RealVector(new double[] { 0.2, 0.2, 0.3, 0.5, 0.1 });
bounds = new DoubleMatrix(new double[, ] {
{ 0.3, 0.7 }
});
generationsDependency = new DoubleValue(0.1);
currentGeneration = new IntValue(5); //current generation > max generation
maximumGenerations = new IntValue(4);
try {
MichalewiczNonUniformOnePositionManipulator.Apply(random, parent, bounds, currentGeneration, maximumGenerations, generationsDependency);
} catch (System.ArgumentException) {
exceptionFired = true;
}
Assert.IsTrue(exceptionFired);
}
public void SinglePointCrossoverApplyTest()
{
TestRandom random = new TestRandom();
BinaryVector parent1, parent2, expected, actual;
bool exceptionFired;
// The following test is based on Eiben, A.E. and Smith, J.E. 2003. Introduction to Evolutionary Computation. Natural Computing Series, Springer-Verlag Berlin Heidelberg, p. 49
random.Reset();
random.DoubleNumbers = new double[] { 0.35, 0.62, 0.18, 0.42, 0.83, 0.76, 0.39, 0.51, 0.36 };
parent1 = new BinaryVector(new bool[] { false, false, false, false, true, false, false, false, false });
parent2 = new BinaryVector(new bool[] { true, true, false, true, false, false, false, false, true });
expected = new BinaryVector(new bool[] { false, true, false, false, false, false, false, false, false });
actual = UniformCrossover.Apply(random, parent1, parent2);
Assert.IsTrue(Auxiliary.BinaryVectorIsEqualByPosition(actual, expected));
// The following test is based on Eiben, A.E. and Smith, J.E. 2003. Introduction to Evolutionary Computation. Natural Computing Series, Springer-Verlag Berlin Heidelberg, p. 49
random.Reset();
random.DoubleNumbers = new double[] { 0.35, 0.62, 0.18, 0.42, 0.83, 0.76, 0.39, 0.51, 0.36 };
parent2 = new BinaryVector(new bool[] { false, false, false, false, true, false, false, false, false });
parent1 = new BinaryVector(new bool[] { true, true, false, true, false, false, false, false, true });
expected = new BinaryVector(new bool[] { true, false, false, true, true, false, false, false, true });
actual = UniformCrossover.Apply(random, parent1, parent2);
Assert.IsTrue(Auxiliary.BinaryVectorIsEqualByPosition(actual, expected));
// The following test is not based on any published examples
random.Reset();
random.DoubleNumbers = new double[] { 0.35, 0.62, 0.18, 0.42, 0.83, 0.76, 0.39, 0.51, 0.36 };
parent1 = new BinaryVector(new bool[] { false, true, true, false, false }); // this parent is longer
parent2 = new BinaryVector(new bool[] { false, true, true, false });
exceptionFired = false;
try {
actual = UniformCrossover.Apply(random, parent1, parent2);
}
catch (System.ArgumentException) {
exceptionFired = true;
}
Assert.IsTrue(exceptionFired);
}
public void SinglePositionBitflipManipulatorApplyTest()
{
TestRandom random = new TestRandom();
BinaryVector parent, expected;
// The following test is based on Michalewicz, Z. 1999. Genetic Algorithms + Data Structures = Evolution Programs. Third, Revised and Extended Edition, Spring-Verlag Berlin Heidelberg, p. 21.
random.Reset();
random.IntNumbers = new int[] { 4 };
parent = new BinaryVector(new bool[] { true, true, true, false, false, false, false, false, false,
false, true, true, true, true, true, true, false, false, false, true, false, true });
expected = new BinaryVector(new bool[] { true, true, true, false, true, false, false, false, false,
false, true, true, true, true, true, true, false, false, false, true, false, true });
SinglePositionBitflipManipulator.Apply(random, parent);
Assert.IsTrue(Auxiliary.BinaryVectorIsEqualByPosition(expected, parent));
}
public void UniformOnePositionManipulatorApplyTest()
{
TestRandom random = new TestRandom();
IntegerVector parent, expected;
IntMatrix bounds = new IntMatrix(1, 2);
// The following test is not based on published examples
random.Reset();
random.IntNumbers = new int[] { 3, 3 };
parent = new IntegerVector(new int[] { 2, 2, 3, 5, 1 });
expected = new IntegerVector(new int[] { 2, 2, 3, 3, 1 });
bounds[0, 0] = 2;
bounds[0, 1] = 7;
UniformOnePositionManipulator.Apply(random, parent, bounds);
Assert.IsTrue(Auxiliary.IntegerVectorIsEqualByPosition(expected, parent));
}
public void ScrambleManipulatorApplyTest()
{
TestRandom random = new TestRandom();
Permutation parent, expected;
// The following test is based on an example from Larranaga, P. et al. 1999. Genetic Algorithms for the Travelling Salesman Problem: A Review of Representations and Operators. Artificial Intelligence Review, 13
random.Reset();
random.IntNumbers = new int[] { 3, 6, 1, 1, 1, 0 };
parent = new Permutation(PermutationTypes.RelativeUndirected, new int[] { 0, 1, 2, 3, 4, 5, 6, 7 });
Assert.IsTrue(parent.Validate());
expected = new Permutation(PermutationTypes.RelativeUndirected, new int[] { 0, 1, 2, 4, 5, 6, 3, 7 });
Assert.IsTrue(expected.Validate());
ScrambleManipulator.Apply(random, parent);
Assert.IsTrue(parent.Validate());
Assert.IsTrue(Auxiliary.PermutationIsEqualByPosition(expected, parent));
}
public void InversionManipulatorApplyTest()
{
TestRandom random = new TestRandom();
Permutation parent, expected;
// The following test is based on an example from Eiben, A.E. and Smith, J.E. 2003. Introduction to Evolutionary Computation. Natural Computing Series, Springer-Verlag Berlin Heidelberg, pp. 46-47
random.Reset();
random.IntNumbers = new int[] { 1, 4 };
parent = new Permutation(PermutationTypes.RelativeUndirected, new int[] { 0, 1, 2, 3, 4, 5, 6, 7, 8 });
Assert.IsTrue(parent.Validate());
expected = new Permutation(PermutationTypes.RelativeUndirected, new int[] { 0, 4, 3, 2, 1, 5, 6, 7, 8 });
Assert.IsTrue(expected.Validate());
InversionManipulator.Apply(random, parent);
Assert.IsTrue(parent.Validate());
Assert.IsTrue(Auxiliary.PermutationIsEqualByPosition(expected, parent));
}
public void Swap3ManipulatorApplyTest()
{
TestRandom random = new TestRandom();
Permutation parent, expected;
// Test manipulator
random.Reset();
random.IntNumbers = new int[] { 1, 3, 6 };
random.DoubleNumbers = new double[] { 0 };
parent = new Permutation(PermutationTypes.RelativeUndirected, new int[] { 0, 1, 2, 3, 4, 5, 6, 7, 8 });
Assert.IsTrue(parent.Validate());
expected = new Permutation(PermutationTypes.RelativeUndirected, new int[] { 0, 3, 2, 6, 4, 5, 1, 7, 8 });
Assert.IsTrue(expected.Validate());
Swap3Manipulator.Apply(random, parent);
Assert.IsTrue(parent.Validate());
Assert.IsTrue(Auxiliary.PermutationIsEqualByPosition(expected, parent));
}
public void UniformOnePositionManipulatorApplyTest()
{
TestRandom random = new TestRandom();
RealVector parent, expected;
DoubleMatrix bounds;
// The following test is not based on published examples
random.Reset();
random.IntNumbers = new int[] { 3 };
random.DoubleNumbers = new double[] { 0.2 };
parent = new RealVector(new double[] { 0.2, 0.2, 0.3, 0.5, 0.1 });
expected = new RealVector(new double[] { 0.2, 0.2, 0.3, 0.3, 0.1 });
bounds = new DoubleMatrix(new double[, ] {
{ 0.2, 0.7 }
});
UniformOnePositionManipulator.Apply(random, parent, bounds);
Assert.IsTrue(Auxiliary.RealVectorIsAlmostEqualByPosition(expected, parent));
}
public void OrderCrossoverApplyTest()
{
TestRandom random = new TestRandom();
Permutation parent1, parent2, expected, actual;
// The following test is based on an example from Eiben, A.E. and Smith, J.E. 2003. Introduction to Evolutionary Computation. Natural Computing Series, Springer-Verlag Berlin Heidelberg, pp. 55-56
random.Reset();
random.IntNumbers = new int[] { 3, 6 };
parent1 = new Permutation(PermutationTypes.RelativeUndirected, new int[] { 0, 1, 2, 3, 4, 5, 6, 7, 8 });
Assert.IsTrue(parent1.Validate());
parent2 = new Permutation(PermutationTypes.RelativeUndirected, new int[] { 8, 2, 6, 7, 1, 5, 4, 0, 3 });
Assert.IsTrue(parent2.Validate());
expected = new Permutation(PermutationTypes.RelativeUndirected, new int[] { 2, 7, 1, 3, 4, 5, 6, 0, 8 });
Assert.IsTrue(expected.Validate());
actual = OrderCrossover.Apply(random, parent1, parent2);
Assert.IsTrue(actual.Validate());
Assert.IsTrue(Auxiliary.PermutationIsEqualByPosition(expected, actual));
// The following test is based on an example from Larranaga, P. et al. 1999. Genetic Algorithms for the Travelling Salesman Problem: A Review of Representations and Operators. Artificial Intelligence Review, 13, pp. 129-170.
random.Reset();
random.IntNumbers = new int[] { 2, 4 };
parent1 = new Permutation(PermutationTypes.RelativeUndirected, new int[] { 0, 1, 2, 3, 4, 5, 6, 7 });
Assert.IsTrue(parent1.Validate());
parent2 = new Permutation(PermutationTypes.RelativeUndirected, new int[] { 1, 3, 5, 7, 6, 4, 2, 0 });
Assert.IsTrue(parent2.Validate());
expected = new Permutation(PermutationTypes.RelativeUndirected, new int[] { 7, 6, 2, 3, 4, 0, 1, 5 });
actual = OrderCrossover.Apply(random, parent1, parent2);
Assert.IsTrue(actual.Validate());
Assert.IsTrue(Auxiliary.PermutationIsEqualByPosition(expected, actual));
// The following test is based on an example from Talbi, E.G. 2009. Metaheuristics - From Design to Implementation. Wiley, p. 218.
random.Reset();
random.IntNumbers = new int[] { 2, 5 };
parent1 = new Permutation(PermutationTypes.RelativeUndirected, new int[] { 0, 1, 2, 3, 4, 5, 6, 7, 8 });
Assert.IsTrue(parent1.Validate());
parent2 = new Permutation(PermutationTypes.RelativeUndirected, new int[] { 7, 3, 0, 4, 8, 2, 5, 1, 6 });
Assert.IsTrue(parent2.Validate());
expected = new Permutation(PermutationTypes.RelativeUndirected, new int[] { 0, 8, 2, 3, 4, 5, 1, 6, 7 });
Assert.IsTrue(expected.Validate());
actual = OrderCrossover.Apply(random, parent1, parent2);
Assert.IsTrue(actual.Validate());
Assert.IsTrue(Auxiliary.PermutationIsEqualByPosition(expected, actual));
// The following test is not based on published examples
random.Reset();
random.IntNumbers = new int[] { 0, 5 };
parent1 = new Permutation(PermutationTypes.RelativeUndirected, new int[] { 2, 1, 4, 3, 7, 8, 6, 0, 5, 9 });
Assert.IsTrue(parent1.Validate());
parent2 = new Permutation(PermutationTypes.RelativeUndirected, new int[] { 5, 3, 4, 0, 9, 8, 2, 7, 1, 6 });
Assert.IsTrue(parent2.Validate());
expected = new Permutation(PermutationTypes.RelativeUndirected, new int[] { 2, 1, 4, 3, 7, 8, 6, 5, 0, 9 });
Assert.IsTrue(expected.Validate());
actual = OrderCrossover.Apply(random, parent1, parent2);
Assert.IsTrue(actual.Validate());
Assert.IsTrue(Auxiliary.PermutationIsEqualByPosition(expected, actual));
// based on the previous with changed breakpoints
random.Reset();
random.IntNumbers = new int[] { 6, 9 };
expected = new Permutation(PermutationTypes.RelativeUndirected, new int[] { 3, 4, 8, 2, 7, 1, 6, 0, 5, 9 });
Assert.IsTrue(expected.Validate());
actual = OrderCrossover.Apply(random, parent1, parent2);
Assert.IsTrue(actual.Validate());
Assert.IsTrue(Auxiliary.PermutationIsEqualByPosition(expected, actual));
// another one based on the previous with changed breakpoints
random.Reset();
random.IntNumbers = new int[] { 0, 9 };
expected = new Permutation(PermutationTypes.RelativeUndirected, new int[] { 2, 1, 4, 3, 7, 8, 6, 0, 5, 9 });
Assert.IsTrue(expected.Validate());
actual = OrderCrossover.Apply(random, parent1, parent2);
Assert.IsTrue(actual.Validate());
Assert.IsTrue(Auxiliary.PermutationIsEqualByPosition(expected, actual));
// perform a test when the two permutations are of unequal length
random.Reset();
bool exceptionFired = false;
try {
OrderCrossover.Apply(random, new Permutation(PermutationTypes.RelativeUndirected, 8), new Permutation(PermutationTypes.RelativeUndirected, 6));
}
catch (System.ArgumentException) {
exceptionFired = true;
}
Assert.IsTrue(exceptionFired);
}