Individual.java

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package net.bmahe.genetics4j.core;
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import org.immutables.value.Value;
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/**
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 * Represents an individual in an evolutionary algorithm, consisting of a genotype and its associated fitness value.
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 *
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 * <p>This interface encapsulates the fundamental concept of an individual solution in evolutionary computation,
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 * combining genetic representation (genotype) with its evaluated performance (fitness).
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 *
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 * @param <T> the type of the fitness value, must be comparable for selection and ranking purposes
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 */
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@Value.Immutable
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public interface Individual<T extends Comparable<T>> {
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	/**
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	 * Returns the genotype of this individual.
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	 *
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	 * @return the genetic representation containing chromosomes that define this individual's traits
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	 */
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	@Value.Parameter
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	Genotype genotype();
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	/**
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	 * Returns the fitness value of this individual.
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	 *
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	 * @return the evaluated performance or quality measure of this individual's genotype
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	 */
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	@Value.Parameter
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	T fitness();
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	/**
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	 * Creates a new individual with the specified genotype and fitness.
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	 *
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	 * @param <U>      the type of the fitness value
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	 * @param genotype the genetic representation of the individual
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	 * @param fitness  the evaluated fitness value of the individual
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	 * @return a new Individual instance with the given genotype and fitness
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	 */
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	static <U extends Comparable<U>> Individual<U> of(final Genotype genotype, final U fitness) {
41 2 1. of : replaced return value with null for net/bmahe/genetics4j/core/Individual::of → KILLED
2. of : removed call to net/bmahe/genetics4j/core/ImmutableIndividual::of → KILLED
 
		return ImmutableIndividual.of(genotype, fitness);
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	}
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}

Mutations

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1.1
Location : of
Killed by : net.bmahe.genetics4j.core.util.IndividualUtilsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.util.IndividualUtilsTest]/[method:fitnessBasedComparatorMinimize()] replaced return value with null for net/bmahe/genetics4j/core/Individual::of → KILLED

2.2
Location : of
Killed by : net.bmahe.genetics4j.core.util.IndividualUtilsTest.[engine:junit-jupiter]/[class:net.bmahe.genetics4j.core.util.IndividualUtilsTest]/[method:fitnessBasedComparatorMinimize()] removed call to net/bmahe/genetics4j/core/ImmutableIndividual::of → KILLED

Active mutators

Tests examined


Report generated by PIT 1.20.3