Population.java

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package net.bmahe.genetics4j.core;
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import java.util.ArrayList;
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import java.util.Iterator;
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import java.util.List;
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import java.util.Objects;
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8 
import org.apache.commons.lang3.Validate;
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/**
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 * Represents a population of individuals in an evolutionary algorithm.
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 *
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 * <p>A population is a collection of {@link Individual}s, each consisting of a genotype and its associated fitness.
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 * This class provides methods to manage, access, and iterate over the individuals in the population.
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 *
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 * <p>Populations are mutable and support adding individuals, either individually or in bulk from other populations. The
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 * class maintains parallel lists of genotypes and fitnesses for efficient access.
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 *
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 * @param <T> the type of the fitness values, must be comparable for selection operations
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 * @see Individual
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 * @see Genotype
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 */
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public class Population<T extends Comparable<T>> implements Iterable<Individual<T>> {
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	private List<Genotype> genotypes;
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	private List<T> fitnesses;
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	/**
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	 * Creates an empty population.
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	 */
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	public Population() {
32 2 1. <init> : Removed assignment to member variable genotypes → KILLED
2. <init> : removed call to java/util/ArrayList::<init> → KILLED
 
		this.genotypes = new ArrayList<>();
33 2 1. <init> : Removed assignment to member variable fitnesses → KILLED
2. <init> : removed call to java/util/ArrayList::<init> → KILLED
 
		this.fitnesses = new ArrayList<>();
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	}
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	/**
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	 * Creates a population with the specified genotypes and fitnesses.
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	 *
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	 * @param _genotype  the list of genotypes for the population
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	 * @param _fitnesses the list of fitness values corresponding to the genotypes
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	 * @throws IllegalArgumentException if genotypes or fitnesses are null, or if their sizes don't match
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	 */
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	public Population(final List<Genotype> _genotype, final List<T> _fitnesses) {
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		Objects.requireNonNull(_genotype);
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		Objects.requireNonNull(_fitnesses);
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		Validate.isTrue(_genotype.size() == _fitnesses.size(),
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				"Size of genotype (%d) does not match size of fitnesses (%d)",
48 3 1. <init> : removed call to java/lang/Integer::valueOf → SURVIVED
2. <init> : Substituted 1 with 0 → SURVIVED
3. <init> : removed call to java/util/List::size → SURVIVED
 
				_genotype.size(),
49 2 1. <init> : removed call to java/lang/Integer::valueOf → SURVIVED
2. <init> : removed call to java/util/List::size → SURVIVED
 
				_fitnesses.size());
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51 2 1. <init> : Removed assignment to member variable genotypes → KILLED
2. <init> : removed call to java/util/ArrayList::<init> → KILLED
 
		this.genotypes = new ArrayList<Genotype>(_genotype);
52 2 1. <init> : Removed assignment to member variable fitnesses → KILLED
2. <init> : removed call to java/util/ArrayList::<init> → KILLED
 
		this.fitnesses = new ArrayList<>(_fitnesses);
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	}
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	/**
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	 * Adds an individual to the population by specifying its genotype and fitness separately.
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	 *
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	 * @param genotype the genotype of the individual to add
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	 * @param fitness  the fitness value of the individual to add
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	 * @throws IllegalArgumentException if genotype or fitness is null
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	 */
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	public void add(final Genotype genotype, final T fitness) {
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		Objects.requireNonNull(genotype);
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		Objects.requireNonNull(fitness);
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66 1 1. add : removed call to java/util/List::add → KILLED
 
		genotypes.add(genotype);
67 1 1. add : removed call to java/util/List::add → KILLED
 
		fitnesses.add(fitness);
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	}
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	/**
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	 * Adds an individual to the population.
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	 *
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	 * @param individual the individual to add to the population
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	 * @throws IllegalArgumentException if individual is null
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	 */
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	public void add(final Individual<T> individual) {
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		Objects.requireNonNull(individual);
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79 2 1. add : removed call to java/util/List::add → TIMED_OUT
2. add : removed call to net/bmahe/genetics4j/core/Individual::genotype → KILLED
 
		genotypes.add(individual.genotype());
80 2 1. add : removed call to net/bmahe/genetics4j/core/Individual::fitness → KILLED
2. add : removed call to java/util/List::add → KILLED
 
		fitnesses.add(individual.fitness());
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	}
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	/**
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	 * Adds all individuals from another population to this population.
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	 *
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	 * @param population the population whose individuals should be added to this population
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	 * @throws IllegalArgumentException if population is null
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	 */
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	public void addAll(final Population<T> population) {
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		Objects.requireNonNull(population);
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92 2 1. addAll : removed call to java/util/List::addAll → KILLED
2. addAll : removed call to net/bmahe/genetics4j/core/Population::getAllGenotypes → KILLED
 
		this.genotypes.addAll(population.getAllGenotypes());
93 2 1. addAll : removed call to java/util/List::addAll → KILLED
2. addAll : removed call to net/bmahe/genetics4j/core/Population::getAllFitnesses → KILLED
 
		this.fitnesses.addAll(population.getAllFitnesses());
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	}
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	@Override
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	public Iterator<Individual<T>> iterator() {
98 2 1. iterator : replaced return value with null for net/bmahe/genetics4j/core/Population::iterator → KILLED
2. iterator : removed call to net/bmahe/genetics4j/core/PopulationIterator::<init> → KILLED
 
		return new PopulationIterator<>(this);
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	}
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	/**
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	 * Returns the genotype at the specified index.
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	 *
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	 * @param index the index of the genotype to retrieve (0-based)
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	 * @return the genotype at the specified index
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	 * @throws IllegalArgumentException if index is out of bounds
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	 */
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	public Genotype getGenotype(final int index) {
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		Validate.inclusiveBetween(0, genotypes.size() - 1, index);
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111 2 1. getGenotype : removed call to java/util/List::get → KILLED
2. getGenotype : replaced return value with null for net/bmahe/genetics4j/core/Population::getGenotype → KILLED
 
		return genotypes.get(index);
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	}
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	/**
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	 * Returns the fitness value at the specified index.
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	 *
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	 * @param index the index of the fitness value to retrieve (0-based)
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	 * @return the fitness value at the specified index
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	 * @throws IllegalArgumentException if index is out of bounds
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	 */
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	public T getFitness(final int index) {
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		Validate.inclusiveBetween(0, fitnesses.size() - 1, index);
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124 2 1. getFitness : replaced return value with null for net/bmahe/genetics4j/core/Population::getFitness → KILLED
2. getFitness : removed call to java/util/List::get → KILLED
 
		return fitnesses.get(index);
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	}
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	/**
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	 * Returns the individual at the specified index.
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	 *
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	 * @param index the index of the individual to retrieve (0-based)
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	 * @return the individual at the specified index, combining its genotype and fitness
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	 * @throws IllegalArgumentException if index is out of bounds
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	 */
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	public Individual<T> getIndividual(final int index) {
135 4 1. getIndividual : removed call to net/bmahe/genetics4j/core/Population::getGenotype → KILLED
2. getIndividual : removed call to net/bmahe/genetics4j/core/Population::getFitness → KILLED
3. getIndividual : replaced return value with null for net/bmahe/genetics4j/core/Population::getIndividual → KILLED
4. getIndividual : removed call to net/bmahe/genetics4j/core/Individual::of → KILLED
 
		return Individual.of(getGenotype(index), getFitness(index));
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	}
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	/**
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	 * Returns all genotypes in this population.
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	 *
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	 * @return a list containing all genotypes in this population
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	 */
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	public List<Genotype> getAllGenotypes() {
144 1 1. getAllGenotypes : replaced return value with Collections.emptyList for net/bmahe/genetics4j/core/Population::getAllGenotypes → KILLED
 
		return genotypes;
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	}
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	/**
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	 * Returns all fitness values in this population.
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	 *
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	 * @return a list containing all fitness values in this population
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	 */
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	public List<T> getAllFitnesses() {
153 1 1. getAllFitnesses : replaced return value with Collections.emptyList for net/bmahe/genetics4j/core/Population::getAllFitnesses → KILLED
 
		return fitnesses;
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	}
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	/**
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	 * Returns the number of individuals in this population.
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	 *
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	 * @return the size of the population
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	 */
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	public int size() {
162 2 1. size : replaced int return with 0 for net/bmahe/genetics4j/core/Population::size → KILLED
2. size : removed call to java/util/List::size → KILLED
 
		return genotypes.size();
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	}
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	/**
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	 * Checks if this population is empty.
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	 *
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	 * @return {@code true} if the population contains no individuals, {@code false} otherwise
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	 */
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	public boolean isEmpty() {
171 7 1. isEmpty : removed call to net/bmahe/genetics4j/core/Population::size → KILLED
2. isEmpty : Substituted 1 with 0 → KILLED
3. isEmpty : negated conditional → KILLED
4. isEmpty : removed conditional - replaced equality check with false → KILLED
5. isEmpty : removed conditional - replaced equality check with true → KILLED
6. isEmpty : Substituted 0 with 1 → KILLED
7. isEmpty : replaced boolean return with true for net/bmahe/genetics4j/core/Population::isEmpty → KILLED
 
		return size() == 0;
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	}
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	@Override
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	public int hashCode() {
176 1 1. hashCode : Substituted 31 with 32 → NO_COVERAGE
 
		final int prime = 31;
177 1 1. hashCode : Substituted 1 with 0 → NO_COVERAGE
 
		int result = 1;
178 8 1. hashCode : Substituted 0 with 1 → NO_COVERAGE
2. hashCode : negated conditional → NO_COVERAGE
3. hashCode : Substituted 31 with 32 → NO_COVERAGE
4. hashCode : Replaced integer addition with subtraction → NO_COVERAGE
5. hashCode : removed call to java/util/List::hashCode → NO_COVERAGE
6. hashCode : removed conditional - replaced equality check with false → NO_COVERAGE
7. hashCode : removed conditional - replaced equality check with true → NO_COVERAGE
8. hashCode : Replaced integer multiplication with division → NO_COVERAGE
 
		result = prime * result + ((fitnesses == null) ? 0 : fitnesses.hashCode());
179 8 1. hashCode : removed call to java/util/List::hashCode → NO_COVERAGE
2. hashCode : Replaced integer multiplication with division → NO_COVERAGE
3. hashCode : Substituted 0 with 1 → NO_COVERAGE
4. hashCode : Replaced integer addition with subtraction → NO_COVERAGE
5. hashCode : negated conditional → NO_COVERAGE
6. hashCode : Substituted 31 with 32 → NO_COVERAGE
7. hashCode : removed conditional - replaced equality check with false → NO_COVERAGE
8. hashCode : removed conditional - replaced equality check with true → NO_COVERAGE
 
		result = prime * result + ((genotypes == null) ? 0 : genotypes.hashCode());
180 1 1. hashCode : replaced int return with 0 for net/bmahe/genetics4j/core/Population::hashCode → NO_COVERAGE
 
		return result;
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	}
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	@Override
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	public boolean equals(Object obj) {
185 2 1. equals : negated conditional → KILLED
2. equals : removed conditional - replaced equality check with true → KILLED
 
		if (this == obj)
186 2 1. equals : replaced boolean return with false for net/bmahe/genetics4j/core/Population::equals → NO_COVERAGE
2. equals : Substituted 1 with 0 → NO_COVERAGE
 
			return true;
187 3 1. equals : negated conditional → SURVIVED
2. equals : removed conditional - replaced equality check with true → SURVIVED
3. equals : removed conditional - replaced equality check with false → SURVIVED
 
		if (obj == null)
188 2 1. equals : replaced boolean return with true for net/bmahe/genetics4j/core/Population::equals → NO_COVERAGE
2. equals : Substituted 0 with 1 → NO_COVERAGE
 
			return false;
189 5 1. equals : removed call to java/lang/Object::getClass → SURVIVED
2. equals : removed conditional - replaced equality check with true → SURVIVED
3. equals : negated conditional → SURVIVED
4. equals : removed conditional - replaced equality check with false → SURVIVED
5. equals : removed call to java/lang/Object::getClass → SURVIVED
 
		if (getClass() != obj.getClass())
190 2 1. equals : Substituted 0 with 1 → NO_COVERAGE
2. equals : replaced boolean return with true for net/bmahe/genetics4j/core/Population::equals → NO_COVERAGE
 
			return false;
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		@SuppressWarnings("rawtypes")
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		Population other = (Population) obj;
194 3 1. equals : removed conditional - replaced equality check with true → SURVIVED
2. equals : removed conditional - replaced equality check with false → SURVIVED
3. equals : negated conditional → SURVIVED
 
		if (fitnesses == null) {
195 3 1. equals : removed conditional - replaced equality check with false → NO_COVERAGE
2. equals : negated conditional → NO_COVERAGE
3. equals : removed conditional - replaced equality check with true → NO_COVERAGE
 
			if (other.fitnesses != null)
196 2 1. equals : replaced boolean return with true for net/bmahe/genetics4j/core/Population::equals → NO_COVERAGE
2. equals : Substituted 0 with 1 → NO_COVERAGE
 
				return false;
197 4 1. equals : removed call to java/util/List::equals → SURVIVED
2. equals : removed conditional - replaced equality check with true → SURVIVED
3. equals : negated conditional → SURVIVED
4. equals : removed conditional - replaced equality check with false → SURVIVED
 
		} else if (!fitnesses.equals(other.fitnesses))
198 2 1. equals : Substituted 0 with 1 → KILLED
2. equals : replaced boolean return with true for net/bmahe/genetics4j/core/Population::equals → KILLED
 
			return false;
199 3 1. equals : removed conditional - replaced equality check with true → NO_COVERAGE
2. equals : removed conditional - replaced equality check with false → NO_COVERAGE
3. equals : negated conditional → NO_COVERAGE
 
		if (genotypes == null) {
200 3 1. equals : removed conditional - replaced equality check with true → NO_COVERAGE
2. equals : removed conditional - replaced equality check with false → NO_COVERAGE
3. equals : negated conditional → NO_COVERAGE
 
			if (other.genotypes != null)
201 2 1. equals : replaced boolean return with true for net/bmahe/genetics4j/core/Population::equals → NO_COVERAGE
2. equals : Substituted 0 with 1 → NO_COVERAGE
 
				return false;
202 4 1. equals : removed conditional - replaced equality check with false → NO_COVERAGE
2. equals : removed call to java/util/List::equals → NO_COVERAGE
3. equals : negated conditional → NO_COVERAGE
4. equals : removed conditional - replaced equality check with true → NO_COVERAGE
 
		} else if (!genotypes.equals(other.genotypes))
203 2 1. equals : replaced boolean return with true for net/bmahe/genetics4j/core/Population::equals → NO_COVERAGE
2. equals : Substituted 0 with 1 → NO_COVERAGE
 
			return false;
204 2 1. equals : Substituted 1 with 0 → NO_COVERAGE
2. equals : replaced boolean return with false for net/bmahe/genetics4j/core/Population::equals → NO_COVERAGE
 
		return true;
205 
	}
206
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	@Override
208 
	public String toString() {
209 3 1. toString : removed call to java/lang/String::valueOf → SURVIVED
2. toString : replaced return value with "" for net/bmahe/genetics4j/core/Population::toString → SURVIVED
3. toString : removed call to java/lang/String::valueOf → SURVIVED
 
		return "Population [genotypes=" + genotypes + ", fitnesses=" + fitnesses + "]";
210 
	}
211
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	/**
213 
	 * Creates a new population with the specified genotypes and fitnesses.
214 
	 *
215 
	 * @param <U>        the type of the fitness values
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	 * @param _genotype  the list of genotypes for the population
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	 * @param _fitnesses the list of fitness values corresponding to the genotypes
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	 * @return a new population containing the specified genotypes and fitnesses
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	 * @throws IllegalArgumentException if genotypes or fitnesses are null, or if their sizes don't match
220 
	 */
221 
	public static <U extends Comparable<U>> Population<U> of(final List<Genotype> _genotype, final List<U> _fitnesses) {
222 2 1. of : removed call to net/bmahe/genetics4j/core/Population::<init> → KILLED
2. of : replaced return value with null for net/bmahe/genetics4j/core/Population::of → KILLED
 
		return new Population<U>(_genotype, _fitnesses);
223 
	}
224
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	/**
226 
	 * Creates a new population from a list of individuals.
227 
	 *
228 
	 * @param <U>         the type of the fitness values
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	 * @param individuals the list of individuals to include in the population
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	 * @return a new population containing the specified individuals
231 
	 * @throws IllegalArgumentException if individuals list is null
232 
	 */
233 
	public static <U extends Comparable<U>> Population<U> of(final List<Individual<U>> individuals) {
234 
		Objects.requireNonNull(individuals);
235
236 1 1. of : removed call to java/util/List::stream → NO_COVERAGE
 
		final List<Genotype> genotypes = individuals.stream()
237 2 1. of : removed call to java/util/stream/Stream::map → NO_COVERAGE
2. of : replaced call to java/util/stream/Stream::map with receiver → NO_COVERAGE
 
				.map(Individual::genotype)
238 1 1. of : removed call to java/util/stream/Stream::toList → NO_COVERAGE
 
				.toList();
239
240 1 1. of : removed call to java/util/List::stream → NO_COVERAGE
 
		final List<U> fitnesses = individuals.stream()
241 2 1. of : replaced call to java/util/stream/Stream::map with receiver → NO_COVERAGE
2. of : removed call to java/util/stream/Stream::map → NO_COVERAGE
 
				.map(Individual::fitness)
242 1 1. of : removed call to java/util/stream/Stream::toList → NO_COVERAGE
 
				.toList();
243
244 2 1. of : replaced return value with null for net/bmahe/genetics4j/core/Population::of → NO_COVERAGE
2. of : removed call to net/bmahe/genetics4j/core/Population::<init> → NO_COVERAGE
 
		return new Population<U>(genotypes, fitnesses);
245 
	}
246
247 
	/**
248 
	 * Creates an empty population.
249 
	 *
250 
	 * @param <U> the type of the fitness values
251 
	 * @return a new empty population
252 
	 */
253 
	public static <U extends Comparable<U>> Population<U> empty() {
254 4 1. empty : replaced return value with null for net/bmahe/genetics4j/core/Population::empty → NO_COVERAGE
2. empty : removed call to net/bmahe/genetics4j/core/Population::<init> → NO_COVERAGE
3. empty : removed call to java/util/List::of → NO_COVERAGE
4. empty : removed call to java/util/List::of → NO_COVERAGE
 
		return new Population<U>(List.of(), List.of());
255 
	}
256
257 
}

Mutations

32

1.1
Location : <init>
Killed by : net.bmahe.genetics4j.core.PopulationTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.PopulationTest]/[method:empty()] Removed assignment to member variable genotypes → KILLED

2.2
Location : <init>
Killed by : net.bmahe.genetics4j.core.PopulationTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.PopulationTest]/[method:empty()] removed call to java/util/ArrayList::<init> → KILLED

33

1.1
Location : <init>
Killed by : net.bmahe.genetics4j.core.postevaluationprocess.FitnessSharingTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.postevaluationprocess.FitnessSharingTest]/[method:simple()] Removed assignment to member variable fitnesses → KILLED

2.2
Location : <init>
Killed by : net.bmahe.genetics4j.core.postevaluationprocess.FitnessSharingTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.postevaluationprocess.FitnessSharingTest]/[method:simple()] removed call to java/util/ArrayList::<init> → KILLED

48

1.1
Location : <init>
Killed by : none removed call to java/lang/Integer::valueOf → SURVIVED Covering tests

2.2
Location : <init>
Killed by : none Substituted 1 with 0 → SURVIVED Covering tests

3.3
Location : <init>
Killed by : none removed call to java/util/List::size → SURVIVED Covering tests

49

1.1
Location : <init>
Killed by : none removed call to java/lang/Integer::valueOf → SURVIVED Covering tests

2.2
Location : <init>
Killed by : none removed call to java/util/List::size → SURVIVED Covering tests

51

1.1
Location : <init>
Killed by : net.bmahe.genetics4j.core.PopulationTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.PopulationTest]/[method:simple()] Removed assignment to member variable genotypes → KILLED

2.2
Location : <init>
Killed by : net.bmahe.genetics4j.core.PopulationTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.PopulationTest]/[method:simple()] removed call to java/util/ArrayList::<init> → KILLED

52

1.1
Location : <init>
Killed by : net.bmahe.genetics4j.core.PopulationTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.PopulationTest]/[method:simple()] Removed assignment to member variable fitnesses → KILLED

2.2
Location : <init>
Killed by : net.bmahe.genetics4j.core.PopulationTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.PopulationTest]/[method:simple()] removed call to java/util/ArrayList::<init> → KILLED

66

1.1
Location : add
Killed by : net.bmahe.genetics4j.core.PopulationTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.PopulationTest]/[method:simple()] removed call to java/util/List::add → KILLED

67

1.1
Location : add
Killed by : net.bmahe.genetics4j.core.postevaluationprocess.FitnessSharingTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.postevaluationprocess.FitnessSharingTest]/[method:simple()] removed call to java/util/List::add → KILLED

79

1.1
Location : add
Killed by : net.bmahe.genetics4j.core.selection.TournamentSelectionPolicyHandlerTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.selection.TournamentSelectionPolicyHandlerTest]/[method:selectMaximize()] removed call to net/bmahe/genetics4j/core/Individual::genotype → KILLED

2.2
Location : add
Killed by : none removed call to java/util/List::add → TIMED_OUT

80

1.1
Location : add
Killed by : net.bmahe.genetics4j.core.selection.SelectiveRefinementTournamentSelectorTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.selection.SelectiveRefinementTournamentSelectorTest]/[method:selectWithoutRefinement()] removed call to net/bmahe/genetics4j/core/Individual::fitness → KILLED

2.2
Location : add
Killed by : net.bmahe.genetics4j.core.selection.SelectiveRefinementTournamentSelectorTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.selection.SelectiveRefinementTournamentSelectorTest]/[method:selectWithoutRefinement()] removed call to java/util/List::add → KILLED

92

1.1
Location : addAll
Killed by : net.bmahe.genetics4j.core.replacement.DeleteNLastImplTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.replacement.DeleteNLastImplTest]/[method:select()] removed call to java/util/List::addAll → KILLED

2.2
Location : addAll
Killed by : net.bmahe.genetics4j.core.replacement.DeleteNLastImplTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.replacement.DeleteNLastImplTest]/[method:select()] removed call to net/bmahe/genetics4j/core/Population::getAllGenotypes → KILLED

93

1.1
Location : addAll
Killed by : net.bmahe.genetics4j.core.replacement.ElitismImplTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.replacement.ElitismImplTest]/[method:simple()] removed call to java/util/List::addAll → KILLED

2.2
Location : addAll
Killed by : net.bmahe.genetics4j.core.replacement.DeleteNLastImplTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.replacement.DeleteNLastImplTest]/[method:select()] removed call to net/bmahe/genetics4j/core/Population::getAllFitnesses → KILLED

98

1.1
Location : iterator
Killed by : net.bmahe.genetics4j.core.PopulationIteratorTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.PopulationIteratorTest]/[method:iteratorIntegrationWithEnhancedForLoop()] replaced return value with null for net/bmahe/genetics4j/core/Population::iterator → KILLED

2.2
Location : iterator
Killed by : net.bmahe.genetics4j.core.PopulationIteratorTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.PopulationIteratorTest]/[method:iteratorIntegrationWithEnhancedForLoop()] removed call to net/bmahe/genetics4j/core/PopulationIterator::<init> → KILLED

111

1.1
Location : getGenotype
Killed by : net.bmahe.genetics4j.core.PopulationTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.PopulationTest]/[method:simple()] removed call to java/util/List::get → KILLED

2.2
Location : getGenotype
Killed by : net.bmahe.genetics4j.core.PopulationTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.PopulationTest]/[method:simple()] replaced return value with null for net/bmahe/genetics4j/core/Population::getGenotype → KILLED

124

1.1
Location : getFitness
Killed by : net.bmahe.genetics4j.core.PopulationTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.PopulationTest]/[method:simple()] replaced return value with null for net/bmahe/genetics4j/core/Population::getFitness → KILLED

2.2
Location : getFitness
Killed by : net.bmahe.genetics4j.core.PopulationTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.PopulationTest]/[method:simple()] removed call to java/util/List::get → KILLED

135

1.1
Location : getIndividual
Killed by : net.bmahe.genetics4j.core.postevaluationprocess.FitnessSharingTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.postevaluationprocess.FitnessSharingTest]/[method:simple()] removed call to net/bmahe/genetics4j/core/Population::getGenotype → KILLED

2.2
Location : getIndividual
Killed by : net.bmahe.genetics4j.core.postevaluationprocess.FitnessSharingTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.postevaluationprocess.FitnessSharingTest]/[method:simple()] removed call to net/bmahe/genetics4j/core/Population::getFitness → KILLED

3.3
Location : getIndividual
Killed by : net.bmahe.genetics4j.core.postevaluationprocess.FitnessSharingTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.postevaluationprocess.FitnessSharingTest]/[method:simple()] replaced return value with null for net/bmahe/genetics4j/core/Population::getIndividual → KILLED

4.4
Location : getIndividual
Killed by : net.bmahe.genetics4j.core.postevaluationprocess.FitnessSharingTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.postevaluationprocess.FitnessSharingTest]/[method:simple()] removed call to net/bmahe/genetics4j/core/Individual::of → KILLED

144

1.1
Location : getAllGenotypes
Killed by : net.bmahe.genetics4j.core.PopulationTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.PopulationTest]/[method:simple()] replaced return value with Collections.emptyList for net/bmahe/genetics4j/core/Population::getAllGenotypes → KILLED

153

1.1
Location : getAllFitnesses
Killed by : net.bmahe.genetics4j.core.PopulationTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.PopulationTest]/[method:simple()] replaced return value with Collections.emptyList for net/bmahe/genetics4j/core/Population::getAllFitnesses → KILLED

162

1.1
Location : size
Killed by : net.bmahe.genetics4j.core.PopulationTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.PopulationTest]/[method:simple()] replaced int return with 0 for net/bmahe/genetics4j/core/Population::size → KILLED

2.2
Location : size
Killed by : net.bmahe.genetics4j.core.PopulationTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.PopulationTest]/[method:simple()] removed call to java/util/List::size → KILLED

171

1.1
Location : isEmpty
Killed by : net.bmahe.genetics4j.core.PopulationTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.PopulationTest]/[method:simple()] removed call to net/bmahe/genetics4j/core/Population::size → KILLED

2.2
Location : isEmpty
Killed by : net.bmahe.genetics4j.core.PopulationTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.PopulationTest]/[method:empty()] Substituted 1 with 0 → KILLED

3.3
Location : isEmpty
Killed by : net.bmahe.genetics4j.core.PopulationTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.PopulationTest]/[method:empty()] negated conditional → KILLED

4.4
Location : isEmpty
Killed by : net.bmahe.genetics4j.core.PopulationTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.PopulationTest]/[method:empty()] removed conditional - replaced equality check with false → KILLED

5.5
Location : isEmpty
Killed by : net.bmahe.genetics4j.core.PopulationTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.PopulationTest]/[method:simple()] removed conditional - replaced equality check with true → KILLED

6.6
Location : isEmpty
Killed by : net.bmahe.genetics4j.core.PopulationTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.PopulationTest]/[method:simple()] Substituted 0 with 1 → KILLED

7.7
Location : isEmpty
Killed by : net.bmahe.genetics4j.core.PopulationTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.PopulationTest]/[method:simple()] replaced boolean return with true for net/bmahe/genetics4j/core/Population::isEmpty → KILLED

176

1.1
Location : hashCode
Killed by : none Substituted 31 with 32 → NO_COVERAGE

177

1.1
Location : hashCode
Killed by : none Substituted 1 with 0 → NO_COVERAGE

178

1.1
Location : hashCode
Killed by : none Substituted 0 with 1 → NO_COVERAGE

2.2
Location : hashCode
Killed by : none negated conditional → NO_COVERAGE

3.3
Location : hashCode
Killed by : none Substituted 31 with 32 → NO_COVERAGE

4.4
Location : hashCode
Killed by : none Replaced integer addition with subtraction → NO_COVERAGE

5.5
Location : hashCode
Killed by : none removed call to java/util/List::hashCode → NO_COVERAGE

6.6
Location : hashCode
Killed by : none removed conditional - replaced equality check with false → NO_COVERAGE

7.7
Location : hashCode
Killed by : none removed conditional - replaced equality check with true → NO_COVERAGE

8.8
Location : hashCode
Killed by : none Replaced integer multiplication with division → NO_COVERAGE

179

1.1
Location : hashCode
Killed by : none removed call to java/util/List::hashCode → NO_COVERAGE

2.2
Location : hashCode
Killed by : none Replaced integer multiplication with division → NO_COVERAGE

3.3
Location : hashCode
Killed by : none Substituted 0 with 1 → NO_COVERAGE

4.4
Location : hashCode
Killed by : none Replaced integer addition with subtraction → NO_COVERAGE

5.5
Location : hashCode
Killed by : none negated conditional → NO_COVERAGE

6.6
Location : hashCode
Killed by : none Substituted 31 with 32 → NO_COVERAGE

7.7
Location : hashCode
Killed by : none removed conditional - replaced equality check with false → NO_COVERAGE

8.8
Location : hashCode
Killed by : none removed conditional - replaced equality check with true → NO_COVERAGE

180

1.1
Location : hashCode
Killed by : none replaced int return with 0 for net/bmahe/genetics4j/core/Population::hashCode → NO_COVERAGE

185

1.1
Location : equals
Killed by : net.bmahe.genetics4j.core.PopulationTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.PopulationTest]/[method:simple()] negated conditional → KILLED

2.2
Location : equals
Killed by : net.bmahe.genetics4j.core.PopulationTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.PopulationTest]/[method:simple()] removed conditional - replaced equality check with true → KILLED

186

1.1
Location : equals
Killed by : none replaced boolean return with false for net/bmahe/genetics4j/core/Population::equals → NO_COVERAGE

2.2
Location : equals
Killed by : none Substituted 1 with 0 → NO_COVERAGE

187

1.1
Location : equals
Killed by : none negated conditional → SURVIVED Covering tests

2.2
Location : equals
Killed by : none removed conditional - replaced equality check with true → SURVIVED Covering tests

3.3
Location : equals
Killed by : none removed conditional - replaced equality check with false → SURVIVED Covering tests

188

1.1
Location : equals
Killed by : none replaced boolean return with true for net/bmahe/genetics4j/core/Population::equals → NO_COVERAGE

2.2
Location : equals
Killed by : none Substituted 0 with 1 → NO_COVERAGE

189

1.1
Location : equals
Killed by : none removed call to java/lang/Object::getClass → SURVIVED Covering tests

2.2
Location : equals
Killed by : none removed conditional - replaced equality check with true → SURVIVED Covering tests

3.3
Location : equals
Killed by : none negated conditional → SURVIVED Covering tests

4.4
Location : equals
Killed by : none removed conditional - replaced equality check with false → SURVIVED Covering tests

5.5
Location : equals
Killed by : none removed call to java/lang/Object::getClass → SURVIVED Covering tests

190

1.1
Location : equals
Killed by : none Substituted 0 with 1 → NO_COVERAGE

2.2
Location : equals
Killed by : none replaced boolean return with true for net/bmahe/genetics4j/core/Population::equals → NO_COVERAGE

194

1.1
Location : equals
Killed by : none removed conditional - replaced equality check with true → SURVIVED Covering tests

2.2
Location : equals
Killed by : none removed conditional - replaced equality check with false → SURVIVED Covering tests

3.3
Location : equals
Killed by : none negated conditional → SURVIVED Covering tests

195

1.1
Location : equals
Killed by : none removed conditional - replaced equality check with false → NO_COVERAGE

2.2
Location : equals
Killed by : none negated conditional → NO_COVERAGE

3.3
Location : equals
Killed by : none removed conditional - replaced equality check with true → NO_COVERAGE

196

1.1
Location : equals
Killed by : none replaced boolean return with true for net/bmahe/genetics4j/core/Population::equals → NO_COVERAGE

2.2
Location : equals
Killed by : none Substituted 0 with 1 → NO_COVERAGE

197

1.1
Location : equals
Killed by : none removed call to java/util/List::equals → SURVIVED Covering tests

2.2
Location : equals
Killed by : none removed conditional - replaced equality check with true → SURVIVED Covering tests

3.3
Location : equals
Killed by : none negated conditional → SURVIVED Covering tests

4.4
Location : equals
Killed by : none removed conditional - replaced equality check with false → SURVIVED Covering tests

198

1.1
Location : equals
Killed by : net.bmahe.genetics4j.core.PopulationTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.PopulationTest]/[method:simple()] Substituted 0 with 1 → KILLED

2.2
Location : equals
Killed by : net.bmahe.genetics4j.core.PopulationTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.PopulationTest]/[method:simple()] replaced boolean return with true for net/bmahe/genetics4j/core/Population::equals → KILLED

199

1.1
Location : equals
Killed by : none removed conditional - replaced equality check with true → NO_COVERAGE

2.2
Location : equals
Killed by : none removed conditional - replaced equality check with false → NO_COVERAGE

3.3
Location : equals
Killed by : none negated conditional → NO_COVERAGE

200

1.1
Location : equals
Killed by : none removed conditional - replaced equality check with true → NO_COVERAGE

2.2
Location : equals
Killed by : none removed conditional - replaced equality check with false → NO_COVERAGE

3.3
Location : equals
Killed by : none negated conditional → NO_COVERAGE

201

1.1
Location : equals
Killed by : none replaced boolean return with true for net/bmahe/genetics4j/core/Population::equals → NO_COVERAGE

2.2
Location : equals
Killed by : none Substituted 0 with 1 → NO_COVERAGE

202

1.1
Location : equals
Killed by : none removed conditional - replaced equality check with false → NO_COVERAGE

2.2
Location : equals
Killed by : none removed call to java/util/List::equals → NO_COVERAGE

3.3
Location : equals
Killed by : none negated conditional → NO_COVERAGE

4.4
Location : equals
Killed by : none removed conditional - replaced equality check with true → NO_COVERAGE

203

1.1
Location : equals
Killed by : none replaced boolean return with true for net/bmahe/genetics4j/core/Population::equals → NO_COVERAGE

2.2
Location : equals
Killed by : none Substituted 0 with 1 → NO_COVERAGE

204

1.1
Location : equals
Killed by : none Substituted 1 with 0 → NO_COVERAGE

2.2
Location : equals
Killed by : none replaced boolean return with false for net/bmahe/genetics4j/core/Population::equals → NO_COVERAGE

209

1.1
Location : toString
Killed by : none removed call to java/lang/String::valueOf → SURVIVED Covering tests

2.2
Location : toString
Killed by : none replaced return value with "" for net/bmahe/genetics4j/core/Population::toString → SURVIVED Covering tests

3.3
Location : toString
Killed by : none removed call to java/lang/String::valueOf → SURVIVED Covering tests

222

1.1
Location : of
Killed by : net.bmahe.genetics4j.core.PopulationTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.PopulationTest]/[method:simple()] removed call to net/bmahe/genetics4j/core/Population::<init> → KILLED

2.2
Location : of
Killed by : net.bmahe.genetics4j.core.PopulationTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.PopulationTest]/[method:simple()] replaced return value with null for net/bmahe/genetics4j/core/Population::of → KILLED

236

1.1
Location : of
Killed by : none removed call to java/util/List::stream → NO_COVERAGE

237

1.1
Location : of
Killed by : none removed call to java/util/stream/Stream::map → NO_COVERAGE

2.2
Location : of
Killed by : none replaced call to java/util/stream/Stream::map with receiver → NO_COVERAGE

238

1.1
Location : of
Killed by : none removed call to java/util/stream/Stream::toList → NO_COVERAGE

240

1.1
Location : of
Killed by : none removed call to java/util/List::stream → NO_COVERAGE

241

1.1
Location : of
Killed by : none replaced call to java/util/stream/Stream::map with receiver → NO_COVERAGE

2.2
Location : of
Killed by : none removed call to java/util/stream/Stream::map → NO_COVERAGE

242

1.1
Location : of
Killed by : none removed call to java/util/stream/Stream::toList → NO_COVERAGE

244

1.1
Location : of
Killed by : none replaced return value with null for net/bmahe/genetics4j/core/Population::of → NO_COVERAGE

2.2
Location : of
Killed by : none removed call to net/bmahe/genetics4j/core/Population::<init> → NO_COVERAGE

254

1.1
Location : empty
Killed by : none replaced return value with null for net/bmahe/genetics4j/core/Population::empty → NO_COVERAGE

2.2
Location : empty
Killed by : none removed call to net/bmahe/genetics4j/core/Population::<init> → NO_COVERAGE

3.3
Location : empty
Killed by : none removed call to java/util/List::of → NO_COVERAGE

4.4
Location : empty
Killed by : none removed call to java/util/List::of → NO_COVERAGE

Active mutators

Tests examined


Report generated by PIT 1.20.3